CN104924889B

CN104924889B - A kind of hybrid power system and motor vehicle driven by mixed power and hybrid driving method

Info

Publication number: CN104924889B
Application number: CN201510373243.4A
Authority: CN
Inventors: 刘英泽
Original assignee: QINGYUAN ELECTRIC VEHICLE CO Ltd TIANJIN
Current assignee: QINGYUAN ELECTRIC VEHICLE CO Ltd TIANJIN
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2017-08-22
Anticipated expiration: 2035-06-30
Also published as: CN104924889A

Abstract

A kind of hybrid power system and motor vehicle driven by mixed power and hybrid driving method, including internal combustion engine, include preceding sun gear, the preceding planet row of preceding planet carrier and front ring gear, include rear sun gear, the rear planet row of planet carrier and rear gear ring afterwards, first motor of the preceding sun gear of planet row before connection, second motor of the rear gear ring of planet row after connection, the front ring gear of preceding planet row is connected with the rear sun gear of rear planet row, the output end of internal combustion engine is connected with the preceding planet carrier of preceding planet row, the rear planet carrier of planet row is connected with system output shaft afterwards, preceding sun gear, which is connected with, carries out locking or the preceding lock-up clutch of release to preceding sun gear, rear sun gear, which is connected with, carries out locking or the middle lock-up clutch of release to rear sun gear, gear ring, which is connected with, afterwards carries out locking or the rear lock-up clutch of release to rear gear ring, regime clutch is provided between gear ring and rear planet carrier afterwards.The present invention can realize the multiple hybrid-power operating mode including tandem operating mode, improve for different driving conditions and desired adaptability.

Description

A kind of hybrid power system and motor vehicle driven by mixed power and hybrid driving method

Technical field

The present invention relates to hybrid power system.More particularly to a kind of hybrid power system and motor vehicle driven by mixed power and mixing Driving method.

Background technology

In face of energy shortage and environmental pollution increasingly serious present situation, hybrid vehicle is current maximally effective energy-conservation vapour Car scheme, its dynamical system has three kinds of forms of series, parallel and series-parallel connection.Tandem energy realizes the optimum control of internal combustion engine, but entirely Portion's energy can all pass through two times transfer, lose larger；Parallel connection can realize preferable transmission efficiency, but internal combustion engine and output shaft machine Tool is connected, it is impossible to ensure internal combustion engine all the time in preferably working region；Series-parallel connection can combine series connection and advantage in parallel, evade The shortcoming of the two, is the configuration scheme optimized the most in three.

Current Series-Parallel HEV is mainly used as power dividing device, typical structure type using planetary mechanism THS systems and general AHS systems including Toyota.Wherein the THS systems of Toyota use single planetary row structure, belong to single mode work( Rate part flow arrangement, can only realize a kind of pattern of input type power dividing, and the transmission efficiency in high velocity is relatively low.General Corporation AHS systems realize power dividing using double or three rows of planetary row, it is possible to achieve input type power dividing and combined type power Both of which is shunted, both of which mutually makes up so that AHS transmission efficiency can remain higher in whole vehicle-speed region The control that multiple clutches are generally required in level, but AHS systems carrys out implementation pattern switching so that the structure of whole system is very Complexity, control difficulty is larger.

" planetary series-parallel connection dynamical system and the vehicle using the dynamical system " (Shen Qing Publication CN104175860A, application Date of publication 20141203) and " planetary type dual-mode petrol-electric parallel-serial hybrid power system " (application publication number CN103448529A, application Date of publication 20131218) hybrid power system of double planet wheel rows of mixing is proposed, but both systems are with reduction electromechanics as far as possible Two times transfer, the waste of reduction energy are by the generation for avoiding tandem operating mode all strongly.But the machine travelled in city Motor-car, because traffic congestion situation more severe vehicle loiters, sometimes speed is extremely difficult to required for power output shunting Level, the electrical source of power on car can not timely supplement electricity.So tandem operating mode for motor vehicle driven by mixed power still very It is necessary, but above two hybrid power system can not all realize tandem operating mode.

The content of the invention

The technical problems to be solved by the invention be to provide it is a kind of can realize including tandem operating mode it is a variety of mixed Power regime is closed, a kind of hybrid power system and hybrid electric vehicle for different driving conditions and desired adaptability is improved And hybrid driving method.

The technical solution adopted in the present invention is：A kind of hybrid power system, including internal combustion engine, include preceding sun gear, The preceding planet row of preceding planet carrier and front ring gear, includes the rear planet row of rear sun gear, rear planet carrier and rear gear ring, and connection is described First motor of the preceding sun gear of preceding planet row, connects the second motor of the rear gear ring of the rear planet row, the preceding planet row Front ring gear be connected with the rear sun gear of the rear planet row, the preceding planet of the output end of the internal combustion engine and the preceding planet row Frame is connected, and the rear planet carrier of the rear planet row is connected with system output shaft, described preceding sun gear be connected with to it is described it is preceding too Sun wheel carries out the preceding lock-up clutch of locking or release, described rear sun gear be connected with the rear sun gear is carried out locking or The middle lock-up clutch of release, described rear gear ring is connected with the rear locking clutch that locking or release are carried out to the rear gear ring Device, is provided with regime clutch between the rear gear ring and the rear planet carrier.

A kind of motor vehicle driven by mixed power with hybrid power system, the system output shaft connection mixing of hybrid power system is dynamic The drive axle of power vehicle.

A kind of driving method of hybrid power system, including following mode of operation：

A, electric-only mode：Internal combustion engine is closed, and electrical source of power provides power drive vehicle to the second motor and travelled, the pattern It is divided into the pure electronic both of which of the pure electronic and low speed of high speed：

A1, high speed electric-only mode：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged, regime clutch engagement；It is logical The motor of Driven by inverter second is crossed, ring gear against rotation after the second motor drives, rear gear ring, rear planet carrier and rear sun gear are common with same One rotating speed rotation, now the first motor idle running, internal combustion engine does not turn, and the rotating speed of the first motor can cause preceding sun gear just certainly The inner side of the preceding planetary gear of planet carrier is revolved round the sun around static preceding sun gear before the rotating speed turned ensures, and the outside of preceding planetary gear is with before The fit inside of gear ring is rotated；

A2, low speed electric-only mode：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch are disengaged, and regime clutch is disengaged, and are led to Cross the motor of Driven by inverter second, ring gear against rotation after the second motor drives, planetary gear and rear planet carrier are around rear after rear gear ring drives Sun gear rotates, and rear planet carrier passes through system output shaft power output；

B, pure charge mode：In pure charge mode, the second motor is inoperative, the rear gear ring of rear planet row, rear planet carrier and Rear sun gear does not rotate, and power only flows between internal combustion engine and the first motor；The pattern is divided into following pattern：

B1,0100 pattern：

Disengaged in the disengagement of preceding lock-up clutch, middle lock-up clutch locking, rear lock-up clutch and regime clutch is de- Open；Internal combustion engine exports power, and the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier is dynamic Power passes to preceding sun gear, the first electric power generation being connected with preceding sun gear；

B2,0101 pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch are disengaged and regime clutch engagement； Internal combustion engine exports power, and the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier is power Preceding sun gear is passed to, the first electric power generation being connected with preceding sun gear；

B3,0110 pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch locking and regime clutch are disengaged； Internal combustion engine exports power, and the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier is power Preceding sun gear is passed to, the first electric power generation being connected with preceding sun gear；

B4,0111 pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch locking and regime clutch engagement； Internal combustion engine exports power, and the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier is power Preceding sun gear is passed to, the first electric power generation being connected with preceding sun gear；

B5,0011 pattern：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch locking and regime clutch are engaged； Internal combustion engine input power, the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier is power Preceding sun gear is passed to, the first electric power generation being connected with preceding sun gear；

C, internal combustion engine drive pattern：Internal combustion engine start, the first motor does not work, and internal combustion engine provides power drive vehicle row Sail, the pattern be divided into the pure internal combustion engine of low speed directly drive and the pure internal combustion engine of high speed directly drive both of which：

C1, the pure internal combustion engine of low speed directly drive pattern：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch locking and regime clutch are disengaged；

Power is output on preceding planet carrier and preceding planetary gear by internal combustion engine, and preceding planetary gear drives front ring gear rotation, front ring gear Rear sun gear rotation is driven, planet carrier and the rotation of rear planetary gear after rear sun gear drives, rear planet carrier are defeated by system by power Shaft is exported；

C2, the pure internal combustion engine of high speed directly drive pattern：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch engagement；

Power is input on preceding planet carrier and preceding planetary gear by internal combustion engine, and preceding planetary gear drives front ring gear rotation, front ring gear Drive rear sun gear rotation, after rear sun gear drives after planet carrier and rear planetary gear planet row the rotation of overall rotating speed, rear row Carrier exports power by system output shaft；

D, combination drive pattern：In combination drive pattern, internal combustion engine, the second motor is in motoring condition, by rear Gear ring planet row input power backward, then selection is in generating electricity or electronic or off position as needed for the first motor, the mould Formula is divided into following 5 kinds of patterns：

D1, serial mixed power pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch are disengaged and regime clutch is disengaged； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, passes to preceding sun gear, and preceding sun gear drives the first motor hair Electricity；Second motor is by Driven by inverter, gear ring input power backward, and power passes to rear planetary gear and rear planet carrier, rear planet Frame exports power through system output shaft；

D2, the motor of internal combustion engine+the second input parallel connection and the second motor speed coupling hybrid mode：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, and front ring gear passes power It is delivered on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；Meanwhile, the rotation of the motor of Driven by inverter second Turn, the second motor is through gear ring planet row input energy backward later, and rear planet row is by the power of the second motor and front ring gear after The power rotating speed coupling of sun gear input, is exported power through system output shaft by rear planet carrier；

D3, the motor of internal combustion engine+the second input parallel connection and the second motor torque coupling hybrid mode：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch engagement； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, and front ring gear passes power It is delivered on rear sun gear, the overall rotating speed rotation of planetary gear and the later planet row of rear planet carrier after rear sun gear drives；Inverter The second motor is driven to rotate, the second motor is through gear ring planet row input energy backward later, and rear planet row is by the dynamic of the second motor The power torque that power is inputted with front ring gear through rear sun gear is coupled, and is exported power through system output shaft by rear planet carrier；

D4, the motor of the motor of internal combustion engine+the second+the first input parallel connection and the second motor speed coupling hybrid mode：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, and front ring gear passes power It is delivered on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；The motor of Driven by inverter first rotates, and first Motor by preceding sun gear planet row input energy forward, preceding planet row by the power of the first motor and preceding planet carrier input it is dynamic Power rotating speed is coupled；The motor of Driven by inverter second rotates, and the second motor is through gear ring planet row input energy, rear planet backward later Row couples the power of the second motor with the power rotating speed that front ring gear is inputted through rear sun gear, by rear planet carrier by power through system Output shaft is exported；

D5, the motor of the motor of internal combustion engine+the second+the first input parallel connection and the second motor torque coupling hybrid mode：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, and front ring gear passes power It is delivered on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；Meanwhile, the rotation of the motor of Driven by inverter first Turn, the first motor is by preceding sun gear planet row input energy forward, and preceding planet row is by the power of the first motor and preceding planet carrier The power rotating speed coupling of input；Meanwhile, the rotation of the motor of Driven by inverter second, planet row is defeated backward through gear ring later for the second motor Enter energy, rear planet row couples the power of the second motor with the power torque that front ring gear is inputted through rear sun gear, by rear planet Frame exports power through system output shaft；

E, power dividing output mode：

E1, the first motor charging+internal combustion engine low speed driving mode：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch locking and regime clutch are disengaged； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear and the rotation of preceding sun gear, it is preceding too Sun wheel is driven by preceding planetary gear partial power passing to the first motor, and the first motor absorbs energy, preceding planet from preceding planet row The power of row is exported backward by front ring gear, drives rear sun gear, planetary gear rotation+revolution after rear sun gear drive, and then band Planet carrier revolution after dynamic, the dynamic retarding inputted by front ring gear and liter torque, are exported to system output shaft by rear planet carrier；

E2, the first motor charging+internal combustion engine speed driving modes：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear and the rotation of preceding sun gear, it is preceding too Sun wheel is driven by preceding planetary gear partial power passing to the first motor, and the first motor absorbs energy, preceding planet from preceding planet row The power of row is exported backward by front ring gear, drives rear sun gear, planet after planetary gear, rear planet carrier after rear sun gear drive The overall rotating speed revolution of row, rear planet row gives system output shaft by rear planet carrier power output；

E3, the second motor charging+internal combustion engine low speed driving mode：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, the power of preceding planet row Exported backward by front ring gear, drive rear sun gear, planetary gear, rear planet carrier, the rotation of rear gear ring, rear tooth after rear sun gear drive Partial power is passed to the second motor by circle, and the second motor absorbs energy from rear planet row, and rear planet row passes through rear planet carrier handle Remaining power output is to system output shaft；

E4, the second motor charging+internal combustion engine speed driving modes：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch engagement； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, the power of preceding planet row Exported backward by front ring gear, meanwhile, the motor of Driven by inverter first rotation, the first motor passes through preceding sun gear planet row forward Input energy, preceding planet row couples the power of the first motor with the power rotating speed that preceding planet carrier is inputted；Rear sun gear is driven, after The overall rotating speed of planet row revolves round the sun after planetary gear, rear planet carrier, rear gear ring after sun gear drives, and rear gear ring passes partial power The second motor is passed, the second motor absorbs energy from rear planet row, and rear planet row gives remaining power output by rear planet carrier System output shaft；

F, Brake energy recovery pattern：

Internal combustion engine is closed, and the first motor does not work, the second electric power generation, and the friction braking system of the second motor and vehicle is carried For power drive vehicle traveling, the pattern is divided into low speed and high speed both of which：

F1, low speed Brake energy recovery pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch are disengaged and regime clutch is disengaged； The electric braking force inputted by the second motor passes sequentially through rear gear ring, rear planetary gear, rear planet carrier and system output shaft output, realizes Braking energy recovering function；

F2, high speed Brake energy recovery pattern：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement； The electric braking force inputted by the second motor passes sequentially through rear gear ring, regime clutch, rear planet carrier and system output shaft output, real Existing braking energy recovering function；

H, standby mode：

H1, the first motor powered+engine brake drive pattern：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch locking and regime clutch are disengaged； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, meanwhile, Driven by inverter First motor rotates, and the first motor is by preceding sun gear planet row input energy forward, and preceding planet row is by the power of the first motor The power rotating speed inputted with preceding planet carrier is coupled；The power of preceding planet row is exported backward by front ring gear, drives rear sun gear, after Planetary gear, the revolution of rear planet carrier after sun gear drives, rear planet row give system output shaft by rear planet carrier power output；

H2, the first motor powered+internal combustion engine speed driving modes：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement； Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, meanwhile, Driven by inverter First motor rotates, and the first motor is by preceding sun gear planet row input energy forward, and preceding planet row is by the power of the first motor The power rotating speed inputted with preceding planet carrier is coupled；The power of preceding planet row is exported backward by front ring gear, drives rear sun gear, after The overall rotating speed of planet row revolves round the sun after planetary gear, rear planet carrier, rear gear ring after sun gear drives, and rear planet row passes through rear planet Frame gives system output shaft power output；

H3, standby parking charge mode：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged； Power by internal combustion engine be input to before on planet carrier, preceding planet carrier drives front ring gear to rotate by preceding planetary gear, preceding planet row it is dynamic Power exports by front ring gear and drives rear sun gear to rotate backward, planetary gear, the rotation of rear gear ring after rear sun gear drives successively；Afterwards Gear ring imparts power to the second motor, and the second electric power generation sends electric energy to inverter.

Under e1 patterns, when vehicle is in accelerator, the rotating speed corresponding to the rotating speed to high speed of internal combustion engine is first improved, The first motor still absorbed power, charges to electrical source of power in accelerator, and the constantly reduction rotating speed in charging process, The power that first motor absorbs gradually is reduced, and the power and rotating speed for being delivered to rear planet row by front ring gear gradually increase, increase The power output and output speed of planet row afterwards.

Under e2 patterns, when vehicle is in down speeding procedure, internal combustion engine is first set to keep original rotating speed, while the first motor is still Absorbed power, charges to electrical source of power, and the constantly increase rotating speed in charging process, and the power that the first motor absorbs is gradually Increase, the power and rotating speed for being delivered to rear planet row by front ring gear gradually reduces, the power output of planet row and defeated after increase Go out the pattern that rotating speed is reduced to low speed operation.

Under e3 patterns, when vehicle is in accelerator, the rotating speed corresponding to the rotating speed to high speed of internal combustion engine is first improved, The second motor still absorbed power and charged simultaneously to electrical source of power, and the constantly reduction rotating speed, second in charging process The power that motor absorbs gradually is reduced, and the power and rotating speed for being delivered to system output shaft by rear planet carrier gradually increase.

Under e4 patterns, when vehicle reduction of speed, the second electric power generation, and charged by inverter to electrical source of power, Second motor gradually increases the torque of absorption, and the torque for inputing to rear planet row by preceding planet carrier is constant, rear planet row Output torque declines, and the moment of torsion that driving vehicle advances declines, and the deceleration of vehicle gradually increases.

A kind of hybrid power system, including internal combustion engine, preceding planet row, rear planet row, the first motor, the second motor, move ahead Star row includes first node, Section Point, the 3rd node, and rear planet row includes fourth node, the 5th node, the 6th node, the One node is connected with internal combustion engine, and Section Point and the first motor connection, the 3rd node are connected with fourth node；5th node and Two motor connections, the 6th node is direct or indirect to be connected with system output shaft, and the 3rd node is provided with to be locked to the 3rd node Only or release lock-up clutch, or fourth node is provided with to the lock-up clutch of fourth node locking or release, or for even The part of the 3rd node or fourth node is connect provided with the lock-up clutch to the element blocks or release.

3rd node is the front ring gear or preceding planet carrier of preceding planet row, and the fourth node is the rear row of rear planet row Carrier or rear sun gear.

A kind of hybrid power system and motor vehicle driven by mixed power and hybrid driving method of the present invention, by using above technology The power that lock-up clutch is interrupted between preceding planet row and rear planet row in scheme, utilization is contacted, and can not only form tandem Hybrid power system, to improve operational efficiency of the engine in the low speed of vehicle, otherwise, when in the prior art in order to tackle long Between the state advanced in low speed, it is necessary to increase the capacity of battery, improve the manufacturing cost of vehicle.The present embodiment can be with The power that lock-up clutch is cut off between preceding planet row and rear planet row in utilization is contacted so that vehicle can be in as needed Pure electronic or pure charged state, improves adaptability of the vehicle for different operating modes, reduces the run time of internal combustion engine, carry The high comfort level of vehicle ride.

Brief description of the drawings

Fig. 1 is the structural representation of the embodiment of the present invention 1；

Fig. 2 is the operation schematic diagram that embodiment 1 is in low speed electric-only mode；

Fig. 3 is the operation schematic diagram that embodiment 1 is in high speed electric-only mode；

Fig. 4 is the operation schematic diagram that embodiment 1 is in the pure electronic bad lectotype of high speed；

Fig. 5 is the operation schematic diagram for 0100 pattern that embodiment 1 is in pure charge mode；

Fig. 6 is the operation schematic diagram for 0101 pattern that embodiment 1 is in pure charge mode；

Fig. 7 is the operation schematic diagram for 0110 pattern that embodiment 1 is in pure charge mode；

Fig. 8 is the operation schematic diagram for 0111 pattern that embodiment 1 is in pure charge mode；

Fig. 9 is the operation schematic diagram for 0011 pattern that embodiment 1 is in pure charge mode；

Figure 10 is that embodiment 1 is in the operation schematic diagram that the pure internal combustion engine of low speed directly drives pattern；

Figure 11 is that embodiment 1 is in the operation schematic diagram that the pure internal combustion engine of high speed directly drives pattern；

Figure 12 is the operation schematic diagram that embodiment 1 is in serial mixed power pattern；

Figure 13 is that embodiment 1 is in the motor of internal combustion engine+the second input parallel connection and the second motor speed coupling hybrid power mould The operation schematic diagram of formula；

Figure 14 is that embodiment 1 is in the motor of internal combustion engine+the second input parallel connection and the second motor torque coupling hybrid power mould The operation schematic diagram of formula；

Figure 15 is that embodiment 1 is in the motor of the motor of internal combustion engine+the second+the first input parallel connection and the coupling of the second motor speed is mixed Close the operation schematic diagram of dynamic mode；

Figure 16 is that embodiment 1 is in the motor of the motor of internal combustion engine+the second+the first input parallel connection and the coupling of the second motor torque is mixed Close the operation schematic diagram of dynamic mode；

Figure 17 is the operation schematic diagram that embodiment 1 is in the first motor charging+internal combustion engine low speed driving mode；

Figure 18 is the operation schematic diagram that embodiment 1 is in the first motor charging+internal combustion engine speed driving modes；

Figure 19 is the operation schematic diagram that embodiment 1 is in the second motor charging+internal combustion engine speed driving modes；

Figure 20 is the operation schematic diagram that embodiment 1 is in the second motor charging+internal combustion engine speed driving modes；

Figure 21 is the operation schematic diagram that embodiment 1 is in low speed Brake energy recovery pattern；

Figure 22 is the operation schematic diagram that embodiment 1 is in high speed Brake energy recovery pattern；

Figure 23 is the operation schematic diagram that embodiment 1 is in the first motor powered+engine brake drive pattern；

Figure 24 is the operation schematic diagram that embodiment 1 is in the first motor powered+internal combustion engine fast mode；

Figure 25 is the operation schematic diagram that embodiment 1 is in standby parking charge mode；

The hybrid power system that Figure 26 is the present invention is used for attachment structure schematic diagram when on motor vehicle driven by mixed power；

Figure 27 is the structural representation of embodiment 3；

Figure 28 is the structural representation of embodiment 4；

Figure 29 is the structural representation of embodiment 5；

Figure 30 is the structural representation of embodiment 6.

In figure：

1：Internal combustion engine 2：First motor

3：Preceding lock-up clutch 4：Inverter

5：Electrical source of power 6：Front ring gear

7：Gear ring 8 afterwards：Lock-up clutch afterwards

9：Regime clutch 10：Second motor

11：System output shaft 12：Rear sun gear

13：Planet carrier 14 afterwards：Preceding planet carrier

15：Preceding sun gear 16：Middle lock-up clutch

17：Drive axle 18：External gearing

Embodiment

With reference to embodiment and accompanying drawing to a kind of hybrid power system and motor vehicle driven by mixed power and combined drive of the invention Dynamic method is described in detail.At this it should be noted that " connection " of independent appearance listed in this part, it should be appreciated that Into mechanical connection, and the mechanical connection process does not include various clutches.

A kind of hybrid power system of the present invention, including internal combustion engine, preceding planet row, rear planet row, the first motor, the second electricity Machine, preceding planet row includes first node, Section Point, the 3rd node, and rear planet row includes fourth node, the 5th node, the 6th Node, preceding planet row, which has, is expressed as first node, Section Point, the first component of the 3rd node, second component, the 3rd Component, rear planet row, which has, is expressed as fourth node, the 5th node, the 4th component of the 6th node, the 5th component, the 6th Component, first component is connected with internal combustion engine, and second component and the first motor connection, the 3rd component are connected with the 4th component；5th Component and the second motor connection, the 6th component is direct or indirect to be connected with system output shaft, in the 3rd component or the 4th component Or for connecting the part of the 3rd component or the 4th component provided with the lock-up clutch to its locking or release.

Component, can be gear member, carrier member or sun gear member, but necessarily have the specific order. As used herein, " node " is the part of speed changer, for example gear member, carrier member or sun gear member, its feature It is rotating speed and its connecting piece that can be used as being applied to the torque of this part from miscellaneous part, and other portions is applied to from this part The connecting piece of the torque of part.The miscellaneous part that can be interacted with given node includes other of identical planetary gearsets Co-axial member, they occur as other nodes on identical bar.The connection of 3rd component and the 4th component, can be preferably The connection of front ring gear and rear sun gear, or preceding planet carrier and rear planet carrier connection.

Embodiment 1：

As shown in figure 1, a kind of hybrid power system of the present invention, including internal combustion engine 1, include preceding sun gear 15, move ahead The preceding planet row of carrier 14 and front ring gear 6, includes the rear planet row of rear sun gear 12, rear planet carrier 13 and rear gear ring 7, connection First motor 2 of the preceding sun gear 15 of preceding planet row, the second motor 10 of the rear gear ring 7 of planet row, the preceding planet after connection The front ring gear 6 of row is connected with the rear sun gear 12 of rear planet row, the output end of the internal combustion engine 1 and the preceding planet carrier of preceding planet row 14 connections, the rear planet carrier 13 of the rear planet row is connected with system output shaft 11, and described preceding sun gear connects 15 and is connected to preceding Sun gear 15 carries out locking or the preceding lock-up clutch 3 of release, and preceding sun gear 15 can be locked in the presence of preceding lock-up clutch 3 Only on planet case of transmission or it is released and freely rotates.Described rear sun gear 12 is connected with to be entered to rear sun gear 12 Row locking or the middle lock-up clutch 16 of release, rear sun gear 12 can be locked at planet in the presence of middle lock-up clutch 16 On case of transmission or it is released and freely rotates.Described rear gear ring 7 is connected with carries out locking or release to rear gear ring 7 Lock-up clutch 8, are provided with regime clutch 9 afterwards between the rear gear ring 7 and rear planet carrier, and the regime clutch 9 is used in knot Rear planet carrier 13 is linked together with rear gear ring 7 during conjunction, and then make rear planet row as a unitary rotation, and in separation When can rotate relatively freely rear gear ring 7, rear planet carrier 13 and rear sun gear 12.The first described motor 2 and the second electricity Machine 10 is electrically connected with inverter 4 respectively, and inverter 4 is electrically connected with electrical source of power 5.

The mode of operation of this hybrid power system is as shown in table 1.In order to save space in table, the first motor is represented with M1, M2 represents the second motor：

With reference to table 1 and Fig. 2-25, illustrate a kind of mode of operation of hybrid power system of the present invention.Wherein, in figure In, the flow direction of energy indicated by an arrow.In table 1, lock-up clutch locking or mould before, during and after 1 expression in the row of left side 4 Formula clutch is engaged, and lock-up clutch or regime clutch are disengaged before, during and after 0 expression.I.e.：

When preceding lock-up clutch locking, the rotor of the first motor and preceding sun gear are lockable, it is impossible to rotated, such as Fruit front ring gear or preceding planet carrier rotate, it will preceding planetary gear rotation+revolution in front ring gear before driving on planet carrier, move Power is transmitted between front ring gear or preceding planet carrier without being associated with the first motor, and now preceding planet row will become a list Level speed changer.If preceding lock-up clutch is disengaged, the rotor of preceding sun gear and the first motor will be rotated, and preceding sun gear is in Planetary gear speed-changing state, may occur power transmission between the first motor and preceding planet row.

When middle lock-up clutch locking, the rear sun gear of the front ring gear of preceding planet row and rear planet row will be lockable, It can not rotate, power transmission will not occur between preceding planet row and rear planet row, preceding planet row and rear planet row can be only It is vertical according to selection operation the need for each or not run.If preceding planet row or the operation of rear planet row, it will play single-stage and become The effect of fast device.When central lock-up clutch is disengaged, power can be transferred to rear planet row by the front ring gear of preceding planet row Rear sun gear.

Afterwards when lock-up clutch locking, the rotor of rear gear ring and the second motor will be lockable, it is impossible to be rotated.Cause It can not be rotated for rear gear ring, so planet row can also become a single reduction gear after now, if rear planet carrier or the rear sun Wheel rotates, then transmission can only occur between rear planet carrier and rear sun gear for power without being closed with the second motor Connection.If rear lock-up clutch is disengaged, the rotor of rear gear ring and the second motor will be rotated, and rear planet row is in planetary gear Speed change state, may occur power transmission between the second motor and rear planet row.

Regime clutch engage when, will be relatively fixed between rear gear ring and rear planet carrier together with, due to Do not relatively rotate between both, rotation will not also occur for planetary gear, thus rear sun gear now can not produce so that The revolution of planetary gear rotation.So now, rear planet row will become an entirety, i.e., rear gear ring, rear planet carrier, rear sun gear It is common to be rotated with a rotating speed or fixed, so the rotor of front ring gear, system output shaft, the second motor also all can be with same turn Speed rotation is fixed.

In addition, being illustrated to the symbol in each pattern below：

T_eThe torque of planet row sun gear, T before being for internal combustion engine output end_MG1For the torque of the first motor, T_MG2For second The torque of motor, T_outThe total torque exported for the system output shaft of hybrid power system；k₁For the speed ratio of preceding planet row, k₂To be rear The speed ratio of planet row.n_eFor the rotating speed of internal combustion engine output end, n₁For the rotating speed of the first motor, n₂For the rotating speed of the second motor, n_out For the rotating speed of system output shaft.A kind of hybrid power system of the present invention is planetary series-parallel connection dynamical system, its driving method Specific works pattern is：A, electric-only mode：Internal combustion engine 1 is closed, and electrical source of power 5 provides power drive vehicle to the second motor 10 Traveling, the pattern is divided into the pure electronic both of which of the pure electronic and low speed of high speed：

A1, high speed electric-only mode：

As shown in Fig. 2 the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged, regime clutch engagement.The now input of hybrid power system is to be connected to rear gear ring On the second motor 10, be output as the system output shaft on rear planet carrier 13, specific torque relationship is：T_out=T_MG2, rear row The speed of star row is than being 1, and the state is suitable for high-performance cruise and driving operating mode.Now energy is turned the energy of other forms by power supply Electric energy is melted into, by the motor of Driven by inverter second, the second motor is done work using electric energy, ring gear against rotation after drive, due to pattern Clutch is engaged, and rear planet row will become an entirety, i.e., rear gear ring, rear planet carrier and rear sun gear are common with same turn Speed rotation, now the first motor idle running, internal combustion engine does not turn, and sun gear rotation turns before the rotating speed of the first motor can cause just Before speed ensures the inner side of the preceding planetary gear of planet carrier is revolved round the sun around static preceding sun gear, and outside and the front ring gear of preceding planetary gear Fit inside is rotated；The rotating speed n of first motor₁=n₂×k₁。

A2, low speed electric-only mode：

As shown in figure 3, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch locking, rear lock-up clutch are disengaged, and regime clutch is disengaged.The now input of hybrid power system is to be connected to rear gear ring On the second motor 10, be output as rear planet carrier 13, rear gear ring 7 is driven with rear planet carrier 15, and specific torque relationship is： T_out=T_MG2×(1+k₂)/k₂, it is suitable for low speed starting and driving operating mode.In this state, due to middle clutch locking, mix The part for being only rear planet row and its input, exporting actually worked in dynamical system is closed, preceding planet is come in power transmission And do not work.Now the energy of other forms is changed into electric energy by energy by power supply, passes through the motor of Driven by inverter second, Two motors are done work using electric energy, ring gear against rotation after drive, because rear sun gear is fixed, and planet row now becomes a list after institute Level decelerator, planetary gear and rear planet carrier revolve round the sun around rear sun gear after rear gear ring drives, and rear planet carrier is defeated by system output shaft Go out power.

It is further to note that under the pure motoring condition of high speed shown in Fig. 3, due to preceding planet row front ring gear Through locked by middle lock-up clutch, front ring gear can not be rotated.If as shown in figure 4, again that preceding planet carrier is locked, although can also rise To with effect same in Fig. 3, but so obviously increase it is unnecessary the need for locked link, reduce corresponding component Service life.So when low speed is pure electronic, being not suitable for also that preceding lock-up clutch is locked.Electric-only mode can disappear Except the idling oil consumption of internal combustion engine, vehicle fuel economy is improved.Also, by controlling lock-up clutch and regime clutch to realize Low speed and high speed both of which, adapt to reduce the speed demand to the second motor during low speed high torque demand high speed, in power electric When source electricity is sufficient, vehicle is driven using the second motor as far as possible, vehicle economy is improved.

B1,0100 pattern：

As shown in figure 5, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch locking, rear lock-up clutch are disengaged and regime clutch is disengaged.Internal combustion engine exports power, the first motor and preceding sun gear Driven by oil-engine driven preceding planet carrier, power is passed to preceding sun gear by preceding planet carrier, the be connected with preceding sun gear One electric power generation；Because middle lock-up clutch is locked, so front ring gear and rear sun gear cannot be rotated, so preceding planet row Power transmission between rear planet row is interrupted.

B2,0101 pattern：

As shown in fig. 6, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch locking, rear lock-up clutch are disengaged and regime clutch engagement.Internal combustion engine exports power, the first motor and preceding sun gear Driven by oil-engine driven preceding planet carrier, power is passed to preceding sun gear by preceding planet carrier, the be connected with preceding sun gear One electric power generation.Because middle lock-up clutch is locked, so front ring gear and rear sun gear cannot be rotated, so preceding planet row Power transmission between rear planet row is interrupted.Because the power between middle lock-up clutch locking, forward and backward planet row Transmission has been interrupted, so no matter whether regime clutch engages, the generating transmission of planet row before actually having no effect on Process.

B3,0110 pattern：

As shown in fig. 7, the state in each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking Clutch locking, rear lock-up clutch locking and regime clutch are disengaged.Internal combustion engine exports power, the first motor and the preceding sun Wheel is driven by oil-engine driven preceding planet carrier, and power is passed to preceding sun gear, is connected with preceding sun gear by preceding planet carrier First electric power generation.Because middle lock-up clutch is locked, so front ring gear and rear sun gear cannot be rotated, so preceding planet Power transmission between row and rear planet row is interrupted.So no matter after lock-up clutch whether locking, actually have no effect on The process of the generating transmission of preceding planet row.But in this pattern, because rear lock-up clutch also achieves latch functions, so The burden of lock-up clutch in the torque of a part of locking, reduction can be undertaken.

B4,0111 pattern：

As shown in figure 8, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch locking, rear lock-up clutch locking and regime clutch engagement.Internal combustion engine exports power, the first motor and preceding sun gear Driven by oil-engine driven preceding planet carrier, power is passed to preceding sun gear by preceding planet carrier, the be connected with preceding sun gear One electric power generation.Because middle lock-up clutch is locked, so front ring gear and rear sun gear cannot be rotated, so preceding planet row Power transmission between rear planet row is interrupted.Because the power between middle lock-up clutch locking, forward and backward planet row Transmission has been interrupted, thus no matter after lock-up clutch whether whether locking, regime clutch engage, actually have no effect on The process of the generating transmission of preceding planet row.But in this pattern, because rear lock-up clutch also achieves latch functions, so The burden of lock-up clutch in the torque of a part of locking, reduction can be undertaken.

B5,0011 pattern：

As shown in figure 9, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch locking and regime clutch are engaged.Internal combustion engine input power, the first motor and preceding sun gear Driven by oil-engine driven preceding planet carrier, power is passed to preceding sun gear by preceding planet carrier, the be connected with preceding sun gear One electric power generation.Due to regime clutch engagement, then otherwise the rear gear ring and rear planet carrier of rear planet row can only be with identicals Rotating speed rotates, otherwise it can not rotate, and because rear lock-up clutch locking, gear ring can not rotate after institute.Planet after institute Row can not rotate.So this pattern, substantially the problem of locked rear sun gear, i.e. locked front ring gear on 0100 pattern phase Together, the power transmission between forward and backward planet row also has been cut off.If middle lock-up clutch breaks down, it is impossible to locking, So by this pattern, the function with lock-up clutch identical locking front ring gear, rear sun gear can also be realized.So this mould Formula, can realize the backup of pure power generation mode when the failure for being unable to locking occurs in lock-up clutch in.

More than in 5 kinds of patterns, internal combustion engine input power, the first motor and preceding sun gear are moved ahead by oil-engine driven Carrier is driven, and power is passed to preceding sun gear by preceding planet carrier, and the first motor being connected with preceding sun gear is in generating state.This Kind of state is to be transformed into the power of internal combustion engine on power supply by generator and inverter to be stored, power supply can be battery or Super capacitor.So, as long as when after lock-up clutch and regime clutch both have one damage when, middle lock-up clutch It still is able to realize latch functions, or when the damage of middle lock-up clutch, both rear lock-up clutch and regime clutch are Ensure intact, by one kind in 0011 or 0100 pattern, can still realize pure charge mode.If in addition, by pure charging mould Position of the internal combustion engine as power input element and the first motor as power output element in power transmittance process in formula It is mutually reverse, the startup of internal combustion engine can also be realized using the first motor.

C, internal combustion engine drive pattern：Internal combustion engine 1 starts, and the first motor 2 does not work, and internal combustion engine 1 provides power drive vehicle Traveling, the pattern be divided into the pure internal combustion engine of low speed directly drive with the pure internal combustion engine of high speed directly drive both of which：

C1, the pure internal combustion engine of low speed directly drive pattern：

As shown in Figure 10, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch locking, middle locking from Clutch is disengaged, rear lock-up clutch locking and regime clutch are disengaged.Due to preceding lock-up clutch locking, so the first motor Can not rotate, also not have dynamic transmission between the first motor and preceding planet row, thus the preceding planetary gear on preceding planet carrier also only It is that the power on preceding planet carrier is delivered on front ring gear, preceding planet row reforms into a single-stage speed changer, gear ratio is (1+ k₁)/k₁.The then also locking of lock-up clutch 8, so the rotor of the second motor will not rotate, energy will not be in the second motor with after Transmitted between the gear ring of planet row, rear planet row is now also changed into a single reduction gear, speed reducing ratio is 1+k₂.Power by Before internal combustion engine is output on planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear rotation, and front ring gear drives rear sun gear rotation Turn, planet carrier and the rotation of rear planetary gear after rear sun gear drives, rear planet carrier export power by system output shaft.Now mix The input for closing dynamical system is the internal combustion engine 1 on sun gear 14 before being connected to, and is output as rear planet carrier and system output shaft, specifically Torque relationship be：T_out=(1+k₂)×k₁/(1+k₁)×T_e, be suitable for electrical source of power electricity it is inadequate when low speed driving Operating mode, directly drives vehicle, the pattern can directly be driven by internal combustion engine by internal combustion engine, the power of internal combustion engine is not assigned to the One motor, is fully allocated to output shaft, eliminates existing planet combined hybrid system most of power distribution of internal combustion engine in low speed and arrives The problem of electrical power accounting caused by first motor is too high, effectively reduces shadow of the electromechanical two times transfer to dynamical system efficiency Ring.

C2, the pure internal combustion engine of high speed directly drive pattern：

As shown in figure 11, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch locking, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement.Due to preceding lock-up clutch locking, so the first motor Can not rotate, also not have dynamic transmission between the first motor and preceding planet row, thus the preceding planetary gear on preceding planet carrier also only It is that the power on preceding planet carrier is delivered on front ring gear, preceding planet row reforms into a single-stage speed changer, gear ratio is (1+ k₁)/k₁.Now the second motor is in idling conditions under the control of inverter, and the rotating speed of idle running is the overall rotating speed of rear planet row (rear planet row now not speed change), i.e. n₂=(1+k₁)/k₁×n_e.Power is input to preceding planet carrier and preceding planetary gear by internal combustion engine On, preceding planetary gear drives front ring gear rotation, and front ring gear drives rear sun gear rotation, planet carrier and rear planet after rear sun gear drives The overall rotating speed rotation of planet row after wheel, rear planet carrier exports power by system output shaft.Now hybrid power system Input be the internal combustion engine 1 on sun gear 14 before being connected to, be output as rear planet carrier 13, specific torque relationship is：Tout= k₁/(1+k₁) × Te, be suitable for vehicle travelled with higher speed and vehicle driving force demand be located at internal combustion engine high efficient district when driving Operating mode, it is to avoid the data-collection problem that existing combined hybrid system exists when internal combustion engine directly drives, improves dynamical system efficiency.

D1, serial mixed power pattern：

As shown in figure 12, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch locking, rear lock-up clutch are disengaged and regime clutch is disengaged.Because middle lock-up clutch is locked, thus front ring gear and Rear sun gear cannot be rotated, so the power transmission between preceding planet row and rear planet row is interrupted.So, preceding planet row The generating or electronic work of oneself can be each completed with rear planet row, the need for the second motor can be travelled according to vehicle completely Export most suitable rotating speed and moment of torsion, the first motor can then run to the need for optimum operation section to set according to diesel engine Optimal rotating speed and torque complete charging, do not disturb therebetween.Now, the hybrid power system of the present embodiment is reformed into Series connection type hybrid power system.Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, passes to preceding sun gear, preceding Sun gear drives the first electric power generation；Second motor is by Driven by inverter, gear ring input power backward, and power passes to rear planet Wheel and rear planet carrier, rear planet carrier export power through system output shaft.Now the power input of system, has reformed into internal combustion engine + the second motor, output has reformed into electrical source of power+system output shaft.The output torque of system is：T_out=T_MG2×(1+k₂)/ k₂.Especially in city, traffic congestion situation is more serious, so motor vehicles are more in the way of low speed is run.If cancelled Serial mixed power pattern, then internal combustion engine is operated under relatively low rotating speed, and energy utilization rate is low.So tandem mixing is dynamic Force mode or necessary.In serial mixed power pattern, internal combustion engine can be run with optimal rotating speed, improve fuel oil Utilization rate, and because the operation power of internal combustion engine is larger, rapidly the electric energy in battery can be also full of, reduce internal combustion The run time of machine, reduces influence of the vibration for car body and passenger inside the vehicle of internal combustion engine.And driving side, can be complete Exported by the second motor.Especially in the case of traffic congestion, the speed of automobile is relatively low, and windage is also smaller, and acceleration is also little, institute It is also little with required output torque, it can be undertaken completely by the second motor.

As shown in figure 13, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch locking, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged.Due to preceding lock-up clutch locking, so the first motor Can not rotate, also not have dynamic transmission between the first motor and preceding planet row, thus the preceding planetary gear on preceding planet carrier also only It is that the power on preceding planet carrier is delivered on front ring gear.Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding Planetary gear drives front ring gear rotation, and front ring gear is transferred power on rear sun gear, planetary gear and rear row after rear sun gear drives Carrier rotates；Meanwhile, the rotation of the motor of Driven by inverter second, the second motor through gear ring planet row input energy backward later, after Planet row couples the power of the second motor with the power rotating speed that front ring gear is inputted through rear sun gear, is passed through power by rear planet carrier System output shaft is exported.Now the power input of system, has reformed into the motor of internal combustion engine+the second, it is defeated that output has reformed into system Shaft.The output torque of system is：Tout=(1+k₂)×k₁/(1+k₁)×Te.In this mode, the power warp of internal combustion engine The single-stage speed change of preceding planet row and the rotating speed coupling of rear planet row are crossed, rotating speed there occurs larger change, go for vehicle In the occasion that speed is relatively low, required torque is larger.It is particularly suitable for use in low-speed stage, speed change more frequently occasion, example As public transport pulls in it is outbound when frequently accelerate, slow down.

As shown in figure 14, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch locking, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement.Due to preceding lock-up clutch locking, so the first motor Can not rotate, also not have dynamic transmission between the first motor and preceding planet row, thus the preceding planetary gear on preceding planet carrier also only It is that the power on preceding planet carrier is delivered on front ring gear.Due to regime clutch engagement, planet row can only be with one after institute Overall form is rotated, and the power of the second motor can be just output on rear planet row in the way of torque coupling.Power Inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear rotation, front ring gear is transferred power to On rear sun gear, the overall rotating speed rotation of planetary gear and the later planet row of rear planet carrier after rear sun gear drives；Driven by inverter Second motor rotates, the second motor through gear ring planet row input energy backward later, rear planet row by the power of the second motor with The power torque that front ring gear is inputted through rear sun gear is coupled, and is exported power through system output shaft by rear planet carrier.Now system Power input, reformed into the motor of internal combustion engine+the second, output has reformed into system output shaft.The output torque of system is： Tout=T_MG2+k₁/(1+k₁)×Te.In this pattern, because rear planet row is to play a part of torque coupling, without rising To the effect of deceleration, so the power of internal combustion engine is the decelerating effect that have passed through preceding planet row, now the speed of vehicle is higher. Go for the occasion that speed is higher, required torque is larger of vehicle in this manner.

As shown in figure 15, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged.In this pattern, due to all lock-up clutches or Regime clutch is disengaged, so all motors can all be realized to each planet row input power, all planet rows Rotating speed coupling function.Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, preceding Gear ring is transferred power on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；Driven by inverter first Motor rotates, and the first motor passes through preceding sun gear planet row input energy forward, and preceding planet row is by the power of the first motor with before The power rotating speed coupling of planet carrier input；The motor of Driven by inverter second rotates, and the second motor is through gear ring planet row backward later Input energy, rear planet row couples the power of the second motor with the power rotating speed that front ring gear is inputted through rear sun gear, by rear row Carrier exports power through system output shaft.The now input of system be internal combustion engine and the first motor, the second motor, system it is defeated Go out for system output shaft.The torque of system, Tout=(1+k₂)×k₁/(1+k₁)×Te.In this mode, due to forward and backward row Star row serves the effect slowed down and coupled with rotating speed, so, the power of internal combustion engine, which is also gone through, significantly to slow down, so this When speed it is relatively low, by the power produced by internal combustion engine, the torque for being delivered to system output shaft is just larger.Due to this In pattern, due to have passed through the deceleration of two-stage, the rotating speed of internal combustion engine may be at higher rotating speed, and internal combustion engine, which can be operated in, to be turned The speed section negatively correlated with torque., can be when motor raising speed so that internal combustion engine due to the introducing of the speed of two motors Rotating speed decline, torque rise.Such case goes for low speed, the occasion of big torque, and such as fully loaded vehicle is going up a slope During stop after startup, this pattern can also reduce power output of the internal combustion engine in the stage, and reduction internal combustion engine exists Discharge during non-optimal operation by sections.

As shown in figure 16, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement.Preceding lock-up clutch is disengaged, middle lock-up clutch takes off Open, rear lock-up clutch is disengaged, regime clutch engagement.In this pattern, except regime clutch engagement causes rear planet row Outside unitary rotation, all lock-up clutches are disengaged, thus all motors can to each planet row input power, Preceding planet row can realize the function of rotating speed coupling, and rear planet row can realize the function of torque coupling.Power is passed through by internal combustion engine Preceding planet carrier and the input of preceding planetary gear are crossed, preceding planetary gear drives front ring gear rotation, and front ring gear is transferred power on rear sun gear, Planetary gear and the rotation of rear planet carrier after rear sun gear drives；Meanwhile, the motor of Driven by inverter first rotation, before the first motor passes through Sun gear planet row input energy forward, the power rotating speed coupling that preceding planet row inputs the power of the first motor and preceding planet carrier Close；Meanwhile, the rotation of the motor of Driven by inverter second, the second motor is through gear ring planet row input energy, rear planet row backward later The power of second motor is coupled with the power torque that front ring gear is inputted through rear sun gear, it is by rear planet carrier that power is defeated through system Shaft is exported.The now input of system is internal combustion engine and the first motor, the second motor, and system is output as system output shaft.System The torque of system, Tout=T_MG2+k₁/(1+k₁)×Te.In this mode, the work for slowing down and being coupled with rotating speed is all served due to preceding Play a part of torque coupling with, rear planet row, so, the power of internal combustion engine also goes through deceleration, so speed now is Middling speed, by the power produced by internal combustion engine, is delivered to the torque of system output shaft just more significantly.Such case can be fitted For middling speed, the occasion of big torque, such as fully loaded vehicle is gone up a slope during upward slope with middling speed, and this pattern can also subtract Less in order to realize during identical general power output, power output of the internal combustion engine in the stage, reduction internal combustion engine is in non-optimal section Discharge during operation.

E, power dividing output mode：

As shown in figure 17, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch locking and regime clutch are disengaged.Due to rear lock-up clutch locking, so the second motor The energy of planet row after will not receiving, rear planet row now reforms into a single reduction gear, will can be inputted by front ring gear Dynamic retarding, liter torque, are exported to rear planet carrier.Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planet Wheel drives front ring gear and the rotation of preceding sun gear, and preceding sun gear is driven by preceding planetary gear partial power passing to the first motor, the One motor absorbs energy from preceding planet row, and the power of preceding planet row is exported backward by front ring gear, drives rear sun gear, the rear sun Take turns planet carrier after planetary gear rotation+revolution after driving, and then drive to revolve round the sun, the dynamic retarding inputted by front ring gear and liter torque, Exported by rear planet carrier to system output shaft.The now input of system is internal combustion engine, and system is output as rear planet carrier and the One motor.The output torque of system is Tout=(1+k₂)×k₁/(1+k₁)×T.Charging when parking can not be fully met When the charging of electrical source of power needs, this pattern can be used, timely to supplement electrical source of power, is reached suitable electronic The charge level of operation.Planet row is in the state that rotating speed is coupled before being additionally, since, so, this pattern goes for When vehicle accelerates.Particularly, when vehicle is in accelerator, corresponding to the rotating speed to high speed for first improving internal combustion engine Rotating speed accelerator in the first motor still absorbed power, charged to electrical source of power, and constantly dropped in charging process The slow-speed of revolution so that the power that the first motor absorbs gradually is reduced, by front ring gear be delivered to the power and rotating speed of rear planet row by It is cumulative plus, so that after increasing planet row power output and output speed.Conversely, can be used for the down speeding procedure of vehicle.

For example, in city, bus is difficult directly to reach five or six ten kilometers or even higher speed per hour, is often taken a walk Stop, the speed per hour of traveling also predominantly stays in the speed per hour level of twenty or thirty kilometer, at this time, if the electricity of electrokinetic cell is not Foot, or still have charging surplus, it is possible to this pattern is selected, on the one hand can make internal combustion engine intensive work in the slightly higher area of rotating speed Section, improves the efficiency of combustion of internal combustion engine, and still further aspect can timely supplement the electricity of electrical source of power, and being at hand possible Run at a low speed in the sufficient energy of the energy expenditure deposit of electric-only mode or air-conditioning during parking or other electrical equipment.

E2, the first motor charging+internal combustion engine speed driving modes：

As shown in figure 18, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement.Due to regime clutch engagement, the second motor dallies, So planet row now reforms into an entirety and rotated after two, the power inputted by front ring gear is directly output to rear planet Frame.Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear and the rotation of preceding sun gear, preceding Sun gear is driven by preceding planetary gear partial power passing to the first motor, and the first motor absorbs energy from preceding planet row, moves ahead The power of star row is exported backward by front ring gear, drives rear sun gear, row after planetary gear, rear planet carrier after rear sun gear drive The overall rotating speed revolution of star row, rear planet row gives system output shaft by rear planet carrier power output.The now input of system For internal combustion engine, system is output as rear planet carrier and the first motor.The output torque of system is Tout=k₁/(1+k₁)×Te.When When the charging that charging during parking can not fully meet electrical source of power needs, this pattern can be used, timely to mend Electrical source of power is filled, the charge level of suitable motoring condition work is reached.Planet row is in what rotating speed was coupled before being additionally, since State, so, this pattern goes for playing a part of peak clipping when vehicle is in reduction of speed in high-speed cruising.Specifically Come, when vehicle is in down speeding procedure, internal combustion engine is kept original rotating speed, while the first motor still absorbed power, to power Power source charges, and the constantly increase rotating speed in charging process so that the power that the first motor absorbs gradually increases, by preceding The power and rotating speed that gear ring is delivered to rear planet row are gradually reduced, so that the power output of planet row and output speed drop after increasing The low pattern run to low speed.

For example, in city, vehicle during running at high speed, it is necessary to drive into the relatively low region of speed or close to road During mouthful reduction of speed, at this time, if the not enough power supply of electrokinetic cell or still having charging surplus, it is possible to select this mould Formula, can gradually step up rotating speed during the first motor absorbed power, and the power and rotating speed of rear planet row are delivered to by front ring gear Gradually reduce, so that the power output and output speed of planet row are reduced to the pattern of low speed operation after increasing.Still further aspect The electricity of electrical source of power can be timely supplemented, is electric-only mode or parking process in possible upcoming running at a low speed In air-conditioning or other electrical equipment the sufficient energy of energy expenditure deposit.

As shown in figure 19, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch locking, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged.Due to preceding lock-up clutch locking, so the first motor The energy of preceding planet row will not be received, and preceding sun gear will not rotate, preceding planet row now reforms into a single-stage speed changer, will Power output gives rear planet row.Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear Rotation, the power of preceding planet row is exported backward by front ring gear, drives rear sun gear, planetary gear, rear row after rear sun gear drive Partial power is passed to the second motor by carrier, the rotation of rear gear ring, rear gear ring, and the second motor absorbs energy from rear planet row, after Planet row is by rear planet carrier remaining power output to system output shaft.The now input of system be internal combustion engine, system it is defeated Go out for rear planet carrier and the second motor.The output torque of system is Tout=(1+k₂)×k₁/(1+k₁)×Te.When parking When the charging that charging can not fully meet electrical source of power needs, this pattern can be used, timely to supplement power electric Source, reaches the charge level of suitable motoring condition work.Planet row is in the state that rotating speed is coupled, institute before being additionally, since So that this pattern goes for when vehicle accelerates.Particularly, when vehicle is in accelerator, internal combustion engine is first improved Rotating speed to high speed corresponding to rotating speed, while the second motor still absorbed power and being charged to electrical source of power, and filling Rotating speed is constantly reduced in electric process so that the power that the second motor absorbs gradually is reduced, and system is delivered to by rear planet carrier The power and rotating speed of output shaft gradually increase, until increasing to the level of high speed operation.It is on the contrary, it can also be used to the reduction of speed of vehicle Stage.

E4, the second motor charging+internal combustion engine speed driving modes：

As shown in figure 20, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch locking, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement.Due to preceding lock-up clutch locking, so the first motor The energy of preceding planet row will not be received, and preceding sun gear will not rotate, preceding planet row now reforms into a single-stage speed changer, will Power output gives rear planet row.Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear Rotation, the power of preceding planet row is exported backward by front ring gear, meanwhile, the rotation of the motor of Driven by inverter first, the first motor warp Cross preceding sun gear planet row input energy forward, the power rotating speed that preceding planet row inputs the power of the first motor and preceding planet carrier Coupling；Rear sun gear is driven, the overall rotating speed of planet row is public after planetary gear, rear planet carrier, rear gear ring after rear sun gear drive Turn, partial power is passed to the second motor by rear gear ring, the second motor absorbs energy from rear planet row, and rear planet row passes through rear row Carrier is remaining power output to system output shaft.The now input of system be internal combustion engine, system be output as rear planet carrier and Second motor.The output torque of system is Tout=k₁/(1+k₁)×Te-T_MG2.Charging when parking can not be fully met When the charging of electrical source of power needs, this pattern can be used, timely to supplement electrical source of power, is reached suitable electronic The charge level of operation.

For example, in city, vehicle during running at high speed, it is necessary to drive into the relatively low region of speed or close to road During mouthful reduction of speed, at this time, if the not enough power supply of electrokinetic cell or still having charging surplus, it is possible to select this mould Formula, can gradually step up torque during the second motor absorbed power, so, and the total torque of system external output will be reduced, institute Will gradually it be weakened with the strength for driving automobile to advance, the deceleration of automobile will gradually increase, rather than increase suddenly, can be with The uncomfortable sensation for avoiding passenger from taking, can also reduce the possibility for occurring occupant's injury.Still further aspect can be with Timely supplement electrical source of power electricity, be possible it is upcoming run at a low speed in electric-only mode or parking during The sufficient energy of energy expenditure deposit of air-conditioning or other electrical equipment.

F, Brake energy recovery pattern：Internal combustion engine 1 is closed, and the first motor 2 does not work, and the second motor 10, which is in, to generate electricity, the The friction braking system of two motors and vehicle provides power drive vehicle traveling, and the pattern is divided into low speed and high speed both of which：

F1, low speed Brake energy recovery pattern：

As shown in figure 21, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch locking, rear lock-up clutch are disengaged and regime clutch is disengaged.Now hybrid power system is output as after being connected to The second motor 10 on gear ring, is inputted as rear planet carrier 13, the electric braking force inputted by the second motor pass sequentially through rear gear ring, after Planetary gear, rear planet carrier and system output shaft output, realize braking energy recovering function.Specifically torque relationship is：T_out=(1 +k₂)/k₂×T_MG2, it is suitable for low speed high torque braking, can effectively utilizes the stopping power of the second motor, fully reclaim Brake Energy Amount, significantly improves the fuel economy of vehicle.

F2, high speed Brake energy recovery pattern：

As shown in figure 22, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement.Now the first motor dallies, and torque thereon is zero, Although rear planet row has speed to be delivered on preceding planet row, before power is not delivered on planet row.Inhaled by braking The power of receipts has all passed to the second motor, and electric energy is recovered in electrical source of power by inverter.Hybrid system it is defeated Go out to be connected to the second motor 10 on rear gear ring, input as rear planet carrier 13, the electric braking force inputted by the second motor is successively Exported by rear gear ring, regime clutch, rear planet carrier and system output shaft 11, realize braking energy recovering function.Specifically Torque relationship is：T_out=T_MG2, it is suitable for braking at a high speed, it is possible to decrease to the brake force and speed demand of the second motor during high speed, Reduce the demand to the bearing range of speeds in the volume, cost and design of the second motor.

G, not movable state：

If preceding lock-up clutch locking, then the preceding sun gear of preceding planet row can not be moved, in preceding planet row, as long as Engine rotation, just by front ring gear, rear sun gear must pass to rear planet row by rotating, after now at planet row In the state that can not be rotated, then vehicle will be in not movable state.So in table 1 1011,1101,1110, 1111 patterns are all not movable states.

H, standby mode：Except the second motor replaces during traveling having been stated in e3 and e4, in automobile One motor is completed beyond charging work, can also have the first motor instead of the second motor completion work in following pattern Or second motor replace the first motor completion work state.For example, the second motor replaces the state of the first motor powered, specifically Including：

H1, the first motor powered+engine brake drive pattern：

As shown in figure 23, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch locking and regime clutch are disengaged.Due to rear lock-up clutch locking, so the second motor The energy of planet row after will not receiving, rear planet row now reforms into a single-stage speed changer, the power that will be inputted by front ring gear Export to rear planet carrier.Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, Meanwhile, the motor of Driven by inverter first rotation, the first motor passes through preceding sun gear planet row input energy forward, and preceding planet row will The power of first motor is coupled with the power rotating speed that preceding planet carrier is inputted；The power of preceding planet row is exported backward by front ring gear, Rear sun gear is driven, planetary gear, the revolution of rear planet carrier after rear sun gear drive, rear planet row is by rear planet carrier power output To system output shaft.The now input of system is internal combustion engine and the first motor, and system is output as rear planet carrier.The output of system Torque is Tout=(1+k₂)×k₁/(1+k₁)×Te。

When the second motor breaks down, it is impossible to when electronic, this pattern can be used, with the replacement of part " internal combustion engine+ The input of second motor is in parallel and the second motor speed couples hybrid power " pattern.In such a mode, the power of internal combustion engine passes through The single-stage speed reducing of preceding planet row+rotating speed coupling and the single-stage speed reducing of rear planet row, rotating speed there occurs larger change, can be applicable In vehicle in the occasion that speed is relatively low, required torque is larger.

H2, the first motor powered+internal combustion engine speed driving modes：

As shown in figure 24, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch is disengaged, middle locking from Clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement.Preceding planet row is now planet speed-change state.Power by Internal combustion engine is inputted by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, meanwhile, the electricity of Driven by inverter first Machine rotates, and the first motor passes through preceding sun gear planet row input energy forward, and preceding planet row is by the power of the first motor with moving ahead The power rotating speed coupling of carrier input；The power of preceding planet row is exported backward by front ring gear, drives rear sun gear, rear sun gear The overall rotating speed of planet row revolves round the sun after planetary gear, rear planet carrier, rear gear ring after drive, and rear planet row is by rear planet carrier dynamic Power is exported to system output shaft.The now input of system is internal combustion engine and the first motor, and system is output as rear planet carrier.System Output torque be Tout=k₁/(1+k₁)×T_e.When the second motor breaks down, it is impossible to when electronic, this mould can be used Formula, with replacement " input of the motor of internal combustion engine+the second is in parallel and the second motor torque couples hybrid power " pattern of part.This Under pattern, the power of internal combustion engine by preceding planet row single-stage speed reducing and after planet row direct-drive, rotating speed there occurs necessarily Change, go for vehicle in the occasion that speed is more medium, required torque is relatively low.

H3, standby parking charge mode：

For example, when the first motor damage, when the second motor replaces the charging of the first motor, except e3 patterns and e4 patterns Driving charge mode beyond, also with a kind of parking charge mode, specific works state is as follows：As shown in figure 25, each locking The state of clutch and regime clutch is：Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged And regime clutch is disengaged.Due to preceding lock-up clutch locking, so the first motor will not receive the energy of preceding planet row, and Preceding sun gear will not rotate, and preceding planet row now reforms into a single-stage speed changer, the power output that will be inputted by preceding planet carrier To rear planet row.During due to parking, can by wheel braking, so system output shaft and rear planet carrier are equivalent to locked, after Planet carrier can not rotate, and rear planetary gear only turns into an idle pulley, transmission power, and rear planet row now also becomes a single-stage and subtracted Fast device.Power is input on preceding planet carrier by internal combustion engine, and preceding planet carrier passes through preceding planetary gear and drives front ring gear to rotate, preceding planet row Power export backward by front ring gear and drive rear sun gear to rotate, planetary gear after rear sun gear drives successively, the rotation of rear gear ring Turn；Gear ring imparts power to the second motor afterwards, and the second electric power generation sends electric energy to inverter.

Power is input on preceding planet carrier by internal combustion engine, and preceding planet carrier drives front ring gear to rotate by preceding planetary gear, is moved ahead The power of star row exports by front ring gear and drives rear sun gear to rotate backward, planetary gear, rear tooth after rear sun gear drives successively Circle rotation；Gear ring imparts power to the second motor afterwards, and the second electric power generation sends electric energy to inverter.Now system is defeated It is internal combustion engine to enter end, is output as the second motor.

In summary, the power that the present embodiment is employed between the middle lock-up clutch preceding planet row of interruption and rear planet row joins System, can not only form series connection type hybrid power system, to improve operational efficiency of the engine in vehicle low speed, otherwise, existing Have in technology and to be in the state of low-speed forward for a long time to tackle, it is necessary to increase the capacity of battery, improve the manufacture of vehicle Cost.The present embodiment can also cut off the power between preceding planet row and rear planet row in middle lock-up clutch and contact so that car It can improve adaptability of the vehicle for different operating modes as needed in pure electronic or pure charged state, reduce The run time of internal combustion engine, improves the comfort level of vehicle ride.

Being additionally, since the present embodiment has above-mentioned various modes, is that the damage of some parts has prepared the alternative mould of abundance Formula, so that the reliability of mode selection capability and system of the hybrid power system when parts are damaged is improved, Even if section components are damaged, the operational efficiency of system still will not be significantly reduced.For example：

If middle lock-up clutch is damaged, then b5 patterns can be selected, planet row and front ring gear after pinning are realized Charging of the internal combustion engine to the first motor under dead ship condition；If the first motor is damaged, it can still be realized by h3 patterns Charging under dead ship condition, can also realize the charging under driving states by e3, e4 pattern；If the second motor occurs Damage, it is impossible to realize d2, d3 pattern, but motoring condition can be in by the first motor in h1, h2 pattern, to realize parallel connection Formula hybrid power operating mode.So, the pattern except almost having used all energy conversion devices --- such as d4, d5 are possible to Power source all as input pattern and serial mixed power pattern, and can only by the second motor complete pattern --- Outside electric-only mode, all common patterns have the alternative mode for damage of components.So, even if some parts Break down, it is impossible to normal work, then also hybrid power system will not be caused can not to realize some basic functions, improve and be Adaptibility to response of the system for unit failure.

Embodiment 2：

A kind of motor vehicle driven by mixed power with hybrid power system of the present invention, has been used mixed dynamic described in embodiment 1 Force system, the drive axle 17 of the connection hybrid power vehicle of system output shaft 11 of its hybrid power system.

With reference to the various patterns described in embodiment, the method for operation of the vehicle is introduced：

First, vehicle operation before hot car state when, it is possible to use b1 charge modes, middle lock-up clutch Locking, internal combustion engine rotates produced energy when hot car, can be supplemented by the first motor to electrical source of power.Then car Start, can select use the low speed electric-only modes of a1 because involving starting up process, torque is slightly larger, by second electricity Machine power output, vehicle is directly driven without the process of a liter rotating speed, drop torque.When vehicle continues to accelerate, run to higher When speed, the high speed electric-only modes of a2 can be opened, vehicle are still driven by the second motor, but pass through planet row later Raising speed, realize higher speed.

If starting to start internal combustion engine, the higher speed due to already having, so lock-up clutch is discharged, can be used The electrical power of the kinetic energy of vehicle and the second motor drives internal combustion engine start jointly so that the rotating speed of internal combustion engine very fast can reach To best effort section, control program program caused by driving internal combustion engine start individually with the first motor is reduced complicated. Meanwhile, because the Anti-vibration Design of vehicle is in caused by the high-speed motion stage mainly for internal combustion engine is in low speed in internal combustion engine During the operation phase vehicle can not vibration isolation, passenger inside the vehicle feel under the weather, and high-speed starting internal combustion engine exactly can greatly mitigate This problem, reduces the negative effect to passenger.

Meanwhile, after internal combustion engine start, can select e1 or e2 patterns, hybrid power system be in the first motor charging+ Internal combustion engine low high speed drive pattern, the first motor gradually reduces rotating speed, and the output speed of preceding planet row gradually rises, to reach The speed state of suitable internal combustion engine direct drive.It is then switched to internal combustion engine drive pattern.

If run into higher speed, and load it is larger when, d2 patterns can be used --- the motor of internal combustion engine+the second is defeated Enter in parallel and the second motor speed coupling hybrid mode, such as climbing in high speed.Higher speed is run into, and load is non- When often big, d4 patterns can be used --- the motor of the motor of internal combustion engine+the second+the first input parallel connection and the second motor speed coupling Hybrid mode is closed, all energy conversion devices are allowed all in input acting state, such as the high speed climbing of full load.

When gradually reduction of speed is needed, e1 or e2 patterns can be started, remain able to make diesel engine be in higher turn Speed, to ensure the efficiency of combustion of diesel engine.

When the section for entering the more congestion in city, a1 patterns can be used --- the low pure electronic mould of speed Formula, it is also not too large for the moment of torsion needed for accelerating vehicle because the acceleration under congestion status is also not too large, so low speed It is pure electronic to deal with completely.If the storage energy of electrical source of power is not enough, d1 patterns can be used --- tandem mixing is dynamic Force mode.

When vehicle is got lodged on viaduct or upward slope road, it is necessary to when startup, if the power of the second motor and not enough To provide enough torques, then d2 patterns can be used --- the motor of internal combustion engine+the second input parallel connection and the second motor speed Couple hybrid mode.If the now load-carrying of vehicle is larger or the gradient is relatively suddenly, it is necessary to bigger starting torque, then can To use d5 patterns --- the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor torque couples hybrid power mould Formula, allows all energy conversion devices all in input acting state.

If now vehicle is stifled on the way, and other electrical equipments can start b1 moulds when need electric energy Formula --- charge mode, timely to supplement the power supply of vehicle.

So, in the operation of vehicle, due to the diversity of drive pattern, unless in torque very big vehicle launch feelings Under condition, internal combustion engine can be made to be in the state of optimum speed section as far as possible, the operating efficiency of internal combustion engine can be improved.

Embodiment 3：

As shown in figure 27, a kind of hybrid power system, including internal combustion engine 1, preceding planet row, rear planet row, the first motor, Two motors, the output end of internal combustion engine is connected with the preceding sun gear 15 of preceding planet row, the electricity of preceding planet carrier 14 and first of preceding planet row Machine 2 is connected and by the preceding locking of lock-up clutch 3 or release, preceding planet carrier 14 can in the presence of preceding lock-up clutch 3 locking On planet case of transmission or it is released and freely rotates.The front ring gear 6 of preceding planet row and the rear sun gear of rear planet row 12 connections, rear sun gear by the middle locking of lock-up clutch 16 or release, rear sun gear 12 can middle lock-up clutch 16 work It is locked on planetary transmission housing or is released under and freely rotates.The rear planet carrier 13 of planet row is exported with system afterwards Axle 11 is connected, and the rear gear ring of rear planet row is connected with the second motor 10, rear gear ring by the rear locking of lock-up clutch 8 or release, after Regime clutch is provided between gear ring and rear planet carrier, the regime clutch 9 is used for planet carrier 13 and rear tooth after making when combining Circle 7 links together, and then makes rear planet row as a unitary rotation, and gear ring 7, rear planet after can making in separation Frame 13 and rear sun gear 12 are rotated relatively freely.

First motor, the second motor are electrically connected with inverter 4 respectively, and inverter is electrically connected with electrical source of power 5.

Embodiment 4：

As shown in figure 28, a kind of hybrid power system, including internal combustion engine 1, preceding planet row, rear planet row, the first motor, Two motors, the output end of internal combustion engine is connected with the preceding sun gear 15 of preceding planet row, preceding planet carrier 14 and the rear planet of preceding planet row The rear planet carrier 13 of row is connected.The front ring gear 6 of preceding planet row is connected with the first motor 2 and by the preceding locking of lock-up clutch 3 or released Put, front ring gear can be locked on planetary transmission housing or be released and freely turn in the presence of preceding lock-up clutch 3 Dynamic, preceding planet carrier can be locked by the middle locking of lock-up clutch 16 or release, preceding planet carrier in the presence of middle lock-up clutch 16 Only on planet case of transmission or it is released and freely rotates.The rear gear ring 7 of planet row passes through external gearing afterwards 18 are connected with system output shaft 11, and the rear sun gear 12 of rear planet row is connected with the second motor 10, rear sun gear by rear locking from The locking of clutch 8 or release, are provided with regime clutch between rear sun gear and rear planet carrier, the regime clutch 9 is used to combine When rear planet carrier 13 is linked together with rear sun gear 12, and then make rear planet row as a unitary rotation, and point From when can rotate relatively freely rear gear ring 7, rear planet carrier 13 and rear sun gear 12.

Embodiment 5：

As shown in figure 29, a kind of hybrid power system, including internal combustion engine 1, preceding planet row, rear planet row, the first motor 2, Second motor 10, the output end of internal combustion engine is connected with the preceding sun gear 15 of preceding planet row, and the preceding planet carrier 14 of preceding planet row is with after The rear planet carrier 13 of planet row is connected.The front ring gear 6 of preceding planet row is connected with the first motor 2 and by the preceding locking of lock-up clutch 3 Or discharge, front ring gear can be locked on planetary transmission housing or be released in the presence of preceding lock-up clutch 3 and oneself By rotating, preceding planet carrier by the middle locking of lock-up clutch 16 or release, preceding planet carrier can middle lock-up clutch 16 effect Under be locked on planetary transmission housing or be released and freely rotate.The rear gear ring 7 of planet row connects with the second motor 10 afterwards Connect, the rear sun gear 12 of rear planet row is connected with system output shaft 11, rear gear ring by the rear locking of lock-up clutch 8 or release, after Regime clutch is provided between gear ring and rear planet carrier, the regime clutch 9 is used for planet carrier 13 and rear tooth after making when combining Circle 7 links together, and then makes rear planet row as a unitary rotation, and gear ring 7, rear planet after can making in separation Frame 13 and rear sun gear 12 are rotated relatively freely.

Embodiment 6：

As shown in figure 30, a kind of hybrid power system, including internal combustion engine, preceding planet row, rear planet row, the first motor, Two motors, the output end of internal combustion engine is connected with the preceding sun gear of preceding planet row, front ring gear can preceding lock-up clutch 3 effect Under be locked on planetary transmission housing or be released and freely rotate, the preceding planet carrier of preceding planet row with after rear planet row Planet carrier is connected, and preceding planet carrier can be locked on planetary transmission housing or be released in the presence of middle lock-up clutch 16 Put and freely rotate.The front ring gear of preceding planet row and the first motor connection, front ring gear are connected with to front ring gear locking or release Preceding lock-up clutch, preceding planet carrier is also associated with after the middle lock-up clutch to preceding planet carrier locking or release, rear planet row Gear ring is connected with system output shaft, and the motor shaft of the second motor is hollow shaft, and system output shaft is passed through from the second motor, rear row The rear sun gear and the second motor connection of star row, rear sun gear is connected with the rear locking clutch to rear sun gear locking or release Device, is provided with regime clutch between rear sun gear and rear planet carrier, the regime clutch 9 is used for planet carrier 13 after making when combining Linked together with rear sun gear 12, and then make rear planet row as a unitary rotation, and separation when can make after tooth Circle 7, rear planet carrier 13 and rear sun gear 12 are rotated relatively freely.First motor, the second motor are electrically connected with inverter 4 respectively Connect, inverter is electrically connected with electrical source of power 5.

A kind of motor vehicle driven by mixed power with hybrid power system of the present invention, can also be used in embodiment 3,4,5,6 Described hybrid power system, the drive axle 17 of the connection hybrid power vehicle of system output shaft 11 of its hybrid power system.

Claims

1. a kind of driving method of hybrid power system, hybrid power system includes internal combustion engine（1）, include preceding sun gear （15）, preceding planet carrier（14）And front ring gear（6）Preceding planet row, include rear sun gear（12）, rear planet carrier（13）With rear tooth Circle（7）Rear planet row, connect the preceding sun gear of the preceding planet row（15）The first motor（2）, connect the rear planet row Rear gear ring（7）The second motor（10）, the front ring gear of the preceding planet row（6）With the rear sun gear of the rear planet row（12） Connection, the internal combustion engine（1）Output end and the preceding planet row preceding planet carrier（14）Connection, the rear row of the rear planet row Carrier（13）With system output shaft（11）Connection, it is characterised in that described preceding sun gear（15）It is connected with to the preceding sun Wheel（15）Carry out locking or the preceding lock-up clutch of release（3）, described rear sun gear（12）It is connected with to the rear sun gear （12）Carry out locking or the middle lock-up clutch of release（16）, described rear gear ring（7）It is connected with to the rear gear ring（7）Carry out Locking or the rear lock-up clutch of release（8）, the rear gear ring（7）Regime clutch is provided between the rear planet carrier（9）, Characterized in that, driving method includes following mode of operation：

A, electric-only mode：

Internal combustion engine is closed, and electrical source of power provides power drive vehicle to the second motor and travelled, and it is pure electronic that the pattern is divided into high speed With the pure electronic both of which of low speed：

A1, high speed electric-only mode：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged, regime clutch engagement；

By the motor of Driven by inverter second, ring gear against rotation after the second motor drives, rear gear ring, rear planet carrier and rear sun gear are common Rotated with same rotating speed, now the first motor dallies, and internal combustion engine do not turn, the rotating speed of the first motor can cause just before too The inner side of the preceding planetary gear of planet carrier is revolved round the sun around static preceding sun gear before the rotating speed of sun wheel rotation ensures, and preceding planetary gear is outer The fit inside of side and front ring gear is rotated；

A2, low speed electric-only mode：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch are disengaged, and regime clutch is disengaged,

By the motor of Driven by inverter second, ring gear against rotation after the second motor drives, planetary gear and rear planet after rear gear ring drives Frame rotates around rear sun gear, and rear planet carrier passes through system output shaft power output；

B, pure charge mode：

In pure charge mode, the second motor is inoperative, and rear gear ring, rear planet carrier and the rear sun gear of rear planet row do not rotate, Power only flows between internal combustion engine and the first motor；The pattern is divided into following pattern：

B1,0100 pattern：

Disengaged in the disengagement of preceding lock-up clutch, middle lock-up clutch locking, rear lock-up clutch and regime clutch is disengaged；It is interior Combustion engine exports power, and the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier passes power Preceding sun gear is passed, the first electric power generation being connected with preceding sun gear；

B2,0101 pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch are disengaged and regime clutch engagement；Internal combustion Machine exports power, and the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier transmits power To preceding sun gear, the first electric power generation being connected with preceding sun gear；

B3,0110 pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch locking and regime clutch are disengaged；Internal combustion Machine exports power, and the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier transmits power To preceding sun gear, the first electric power generation being connected with preceding sun gear；

B4,0111 pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch locking and regime clutch engagement；Internal combustion Machine exports power, and the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier transmits power To preceding sun gear, the first electric power generation being connected with preceding sun gear；

B5,0011 pattern：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch locking and regime clutch are engaged；Internal combustion Machine input power, the first motor and preceding sun gear are driven by oil-engine driven preceding planet carrier, and preceding planet carrier transmits power To preceding sun gear, the first electric power generation being connected with preceding sun gear；

C, internal combustion engine drive pattern：

Internal combustion engine start, the first motor does not work, and internal combustion engine provides power drive vehicle traveling, and it is pure interior that the pattern is divided into low speed Combustion engine is directly driven and the pure internal combustion engine of high speed directly drives both of which：

C1, the pure internal combustion engine of low speed directly drive pattern：

Power is output on preceding planet carrier and preceding planetary gear by internal combustion engine, and preceding planetary gear drives front ring gear rotation, and front ring gear drives Rear sun gear is rotated, and power is passed through system output shaft by planet carrier and the rotation of rear planetary gear after rear sun gear drives, rear planet carrier Output；

C2, the pure internal combustion engine of high speed directly drive pattern：

Power is input on preceding planet carrier and preceding planetary gear by internal combustion engine, and preceding planetary gear drives front ring gear rotation, and front ring gear drives Rear sun gear rotates, the overall rotating speed rotation of planet carrier and the later planet row of rear planetary gear, rear planet carrier after rear sun gear drives Power is exported by system output shaft；

D, combination drive pattern：

In combination drive pattern, internal combustion engine, the second motor is in motoring condition, and by rear gear ring, planet row input is dynamic backward Power, then selection is in generating or electronic or off position as needed for the first motor, and the pattern is divided into following 5 kinds of patterns：

D1, serial mixed power pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch are disengaged and regime clutch is disengaged；

Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, passes to preceding sun gear, and preceding sun gear drives the first electricity Machine generates electricity；Second motor is by Driven by inverter, gear ring input power backward, and power passes to rear planetary gear and rear planet carrier, after Planet carrier exports power through system output shaft；

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged；

Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, and front ring gear will be dynamic Power is delivered on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；Meanwhile, the motor of Driven by inverter second Rotation, the second motor passes through the power of the second motor and front ring gear through gear ring planet row input energy backward later, rear planet row The power rotating speed coupling of rear sun gear input, is exported power through system output shaft by rear planet carrier；

Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, and front ring gear will be dynamic Power is delivered on rear sun gear, the overall rotating speed rotation of planetary gear and the later planet row of rear planet carrier after rear sun gear drives；It is inverse Become device and drive the rotation of the second motor, the second motor is through gear ring planet row input energy backward later, and rear planet row is by the second motor Power coupled with the power torque that front ring gear is inputted through rear sun gear, power is exported through system output shaft by rear planet carrier；

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged；

Power is inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, and preceding planetary gear drives front ring gear rotation, and front ring gear will be dynamic Power is delivered on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；The motor of Driven by inverter first rotates, First motor passes through preceding sun gear planet row input energy forward, and preceding planet row inputs the power of the first motor and preceding planet carrier Power rotating speed coupling；The motor of Driven by inverter second rotates, the second motor through gear ring planet row input energy backward later, after Planet row couples the power of the second motor with the power rotating speed that front ring gear is inputted through rear sun gear, is passed through power by rear planet carrier System output shaft is exported；

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement；Power Inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear rotation, front ring gear is transferred power to On rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；Meanwhile, the rotation of the motor of Driven by inverter first, the One motor passes through preceding sun gear planet row input energy forward, and preceding planet row inputs the power of the first motor and preceding planet carrier Power rotating speed is coupled；Meanwhile, the rotation of the motor of Driven by inverter second, the second motor is through gear ring planet row input energy backward later Amount, rear planet row couples the power of the second motor with the power torque that front ring gear is inputted through rear sun gear, will by rear planet carrier Power is exported through system output shaft；

E, power dividing output mode：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch locking and regime clutch are disengaged；Power Inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear and the rotation of preceding sun gear, preceding sun gear Driven by preceding planetary gear and partial power is passed into the first motor, the first motor absorbs energy from preceding planet row, preceding planet row Power is exported backward by front ring gear, rear sun gear is driven, after rear sun gear drive after planetary gear rotation+revolution, and then drive Planet carrier revolves round the sun, the dynamic retarding inputted by front ring gear and liter torque, is exported by rear planet carrier to system output shaft；

E2, the first motor charging+internal combustion engine speed driving modes：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement；Power Inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear and the rotation of preceding sun gear, preceding sun gear Driven by preceding planetary gear and partial power is passed into the first motor, the first motor absorbs energy from preceding planet row, preceding planet row Power is exported backward by front ring gear, drives rear sun gear, planet row after planetary gear, rear planet carrier after rear sun gear drive Overall rotating speed revolution, rear planet row gives system output shaft by rear planet carrier power output；

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged；Power Inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear rotation, the power of preceding planet row passes through Front ring gear is exported backward, drives rear sun gear, planetary gear, rear planet carrier, the rotation of rear gear ring after rear sun gear drive, and rear gear ring will Partial power passes to the second motor, and the second motor absorbs energy from rear planet row, and rear planet row is by rear planet carrier remaining Power output is to system output shaft；

E4, the second motor charging+internal combustion engine speed driving modes：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch engagement；Power Inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear rotation, the power of preceding planet row passes through Front ring gear is exported backward, meanwhile, the rotation of the motor of Driven by inverter first, by preceding sun gear, planet row is inputted the first motor forward Energy, preceding planet row couples the power of the first motor with the power rotating speed that preceding planet carrier is inputted；Drive rear sun gear, the rear sun The overall rotating speed of planet row revolves round the sun after planetary gear, rear planet carrier, rear gear ring after wheel drives, and rear gear ring passes to partial power Second motor, the second motor absorbs energy from rear planet row, and rear planet row is by rear planet carrier remaining power output to system Output shaft；

F, Brake energy recovery pattern：

Internal combustion engine is closed, and the first motor does not work, the second electric power generation, and the friction braking system of the second motor and vehicle provides dynamic Power driving vehicle traveling, the pattern is divided into low speed and high speed both of which：

F1, low speed Brake energy recovery pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch are disengaged and regime clutch is disengaged；By The electric braking force of two motors input passes sequentially through rear gear ring, rear planetary gear, rear planet carrier and system output shaft output, realizes braking Energy recovery function；

F2, high speed Brake energy recovery pattern：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement；By The electric braking force of two motors input passes sequentially through rear gear ring, regime clutch, rear planet carrier and system output shaft output, realizes system Energy reclaims function；

H, standby mode：

H1, the first motor powered+engine brake drive pattern：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch locking and regime clutch are disengaged；Power Inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear rotation, meanwhile, Driven by inverter first Motor rotates, and the first motor passes through preceding sun gear planet row input energy forward, and preceding planet row is by the power of the first motor with before The power rotating speed coupling of planet carrier input；The power of preceding planet row is exported backward by front ring gear, drives rear sun gear, the rear sun Planetary gear, the revolution of rear planet carrier after wheel drives, rear planet row give system output shaft by rear planet carrier power output；

H2, the first motor powered+internal combustion engine speed driving modes：

Preceding lock-up clutch is disengaged, middle lock-up clutch is disengaged, rear lock-up clutch is disengaged and regime clutch engagement；Power Inputted by internal combustion engine by preceding planet carrier and preceding planetary gear, preceding planetary gear drives front ring gear rotation, meanwhile, Driven by inverter first Motor rotates, and the first motor passes through preceding sun gear planet row input energy forward, and preceding planet row is by the power of the first motor with before The power rotating speed coupling of planet carrier input；The power of preceding planet row is exported backward by front ring gear, drives rear sun gear, the rear sun The overall rotating speed of planet row revolves round the sun after planetary gear, rear planet carrier, rear gear ring after wheel drives, and rear planet row passes through rear planet carrier handle Power output is to system output shaft；

H3, standby parking charge mode：

Preceding lock-up clutch locking, middle lock-up clutch are disengaged, rear lock-up clutch is disengaged and regime clutch is disengaged；Power It is input to by internal combustion engine on preceding planet carrier, preceding planet carrier passes through preceding planetary gear and drives front ring gear to rotate, the power warp of preceding planet row Cross front ring gear to export backward and drive rear sun gear to rotate, planetary gear, the rotation of rear gear ring after rear sun gear drives successively；Gear ring afterwards The second motor is imparted power to, the second electric power generation sends electric energy to inverter.

2. the driving method of a kind of hybrid power system according to claim 1, it is characterised in that under e1 patterns, when Vehicle first improves the rotating speed corresponding to the rotating speed to high speed of internal combustion engine in accelerator, and the first motor is still in accelerator Right absorbed power, charges to electrical source of power, and the constantly reduction rotating speed in charging process, the power that the first motor absorbs by Gradually reduce, the power and rotating speed for being delivered to rear planet row by front ring gear gradually increase, after increase the power output of planet row and Output speed.

3. the driving method of a kind of hybrid power system according to claim 1, it is characterised in that under e2 patterns, when Vehicle makes internal combustion engine keep original rotating speed in down speeding procedure, first, while the first motor still absorbed power, fills to electrical source of power Electricity, and the constantly increase rotating speed in charging process, the power that the first motor absorbs gradually increase, are delivered to by front ring gear The power and rotating speed of planet row are gradually reduced afterwards, and the power output and output speed of planet row are reduced to low speed operation after increase Pattern.

4. the driving method of a kind of hybrid power system according to claim 1, it is characterised in that under e3 patterns, when Vehicle first improves the rotating speed corresponding to the rotating speed to high speed of internal combustion engine, while the second motor still absorbs in accelerator Power simultaneously charges to electrical source of power, and the constantly reduction rotating speed in charging process, and the power that the second motor absorbs gradually drops Low, the power and rotating speed for being delivered to system output shaft by rear planet carrier gradually increase.

5. the driving method of a kind of hybrid power system according to claim 1, it is characterised in that under e4 patterns, When vehicle reduction of speed, the second electric power generation, and charged by inverter to electrical source of power, the second motor gradually increases absorption Torque, and the torque for inputing to rear planet row by preceding planet carrier is constant, the output torque of rear planet row declines, before driving vehicle The moment of torsion entered declines, and the deceleration of vehicle gradually increases.