CN104890496B - Hybrid power system and motor vehicle driven by mixed power and hybrid driving method - Google Patents

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,The preceding planet carrier of preceding planet row connects the first motor,The rear gear ring of planet row connects the second motor afterwards,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 sun gear of preceding planet row,The rear planet carrier of planet row is connected with system output shaft afterwards,Preceding planet carrier, which is connected with, carries out locking or the preceding lock-up clutch of release to preceding planet carrier,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

Hybrid power system and motor vehicle driven by mixed power and hybrid driving method

Technical field

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

Background technology

In face of energy shortage and the present situation of environmental pollution getting worse, hybrid vehicle is current maximally effective energy-conservation vapour Car scheme, its dynamical system have 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, and loss is larger；Parallel connection can realize preferable transmission efficiency, but internal combustion engine and output shaft machine Tool connects, it is impossible to ensures that internal combustion engine is in preferably in working region all the time；Series-parallel connection can combine the advantages of connecting and be in parallel, evade The two the shortcomings that, be the configuration scheme optimized the most in three.

Current Series-Parallel HEV is mainly using planetary mechanism as power dividing device, typical structure type 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 Level, but the control that multiple clutches are generally required in AHS systems carrys out implementation pattern switching so that and the structure of whole system is very Complexity, control difficulty are 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 energy is reduced as 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 problem to be solved by the invention is to provide it is a kind of can realize it is a variety of mixed including tandem operating mode Close power regime, it is possible to increase for different driving conditions and the hybrid power system and motor vehicle driven by mixed power that require adaptability 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, include the rear planet row of rear sun gear, rear planet carrier and rear gear ring, it is described to move ahead The preceding planet carrier of star row connects the first motor, it is described after the rear gear ring of planet row connect the second motor, before the preceding planet row Gear ring is connected with the rear sun gear of the rear planet row, and the output end of the internal combustion engine and the preceding sun gear of the preceding planet row connect Connect, the rear planet carrier of the rear planet row is connected with system output shaft, and described preceding planet carrier is connected with to the preceding planet carrier Locking or the preceding lock-up clutch of release are carried out, described rear sun gear is connected with carries out locking or release to the rear sun gear Middle lock-up clutch, described rear gear ring, which is connected with, carries out locking or the rear lock-up clutch of release, institute to gear ring after described State and be provided with regime clutch between 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 are 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 traveling to the second motor, and it is pure that the pattern is divided into low speed Electronic, the high pure electronic both of which of speed：

A1, high speed electric-only mode：

Preceding lock-up clutch disengages, middle lock-up clutch disengages and rear lock-up clutch disengages, regime clutch engagement；

By the motor of Driven by inverter second, ring gear against rotation after the second motor driven, rear gear ring, rear planet carrier and the rear sun Wheel is rotated with same rotating speed jointly, and now the first motor dallies, and internal combustion engine does not turn, and the rotating speed of the first motor can cause just The inner side of planetary gear is revolved round the sun around static preceding sun gear before preceding sun gear rotation rotating speed ensures, and the outside of preceding planetary gear and nipper The fit inside of circle rotates；

A2, low speed electric-only mode：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage, regime clutch disengages,

By the motor of Driven by inverter second, ring gear against rotation after the second motor driven, after rear gear ring drives planetary gear and after Planet carrier 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, the rear sun gear of rear planet row do not revolve Turn, power only flows between internal combustion engine and the first motor；The pattern is divided into following pattern：

B1,0100 pattern：

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

B4,0111 pattern：

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

B5,0011 pattern：

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch engage； Internal combustion engine input power, the first motor and preceding planet carrier are driven by oil-engine driven preceding sun gear, and preceding sun gear is power Preceding planet carrier 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 do not work, and internal combustion engine provides power drive vehicle traveling, and the pattern is divided into low speed Pure internal combustion engine directly drives 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：

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

Before power is output to by internal combustion engine on sun gear, preceding sun gear drives front ring gear to rotate by preceding planetary gear, nipper Circle drives rear sun gear rotation, and power is passed through system by planet carrier and the rotation of rear planetary gear, rear planet carrier after rear sun gear drives Output shaft exports；

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

Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement；

Before power is output to by internal combustion engine on sun gear, preceding sun gear drives front ring gear to rotate by preceding planetary gear, nipper Circle drives rear sun gear rotation, after rear sun gear drives after planet carrier and rear planetary gear planet row the rotation of overall rotating speed, after Planet 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, and by rear gear ring, planet row is defeated backward Enter power, then selection is divided into following 5 kinds of moulds to the first motor in generating or electronic or off position, the pattern as needed Formula：

D1, serial mixed power pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages；

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

D2, the input of the motor of internal combustion engine+the second is in parallel and the second motor speed couples hybrid mode：

Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages；

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, front ring gear Transfer power on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；Meanwhile Driven by inverter second Motor rotates, gear ring planet row input energy backward after the second motor passes through, and rear planet row is by the power and nipper of the second motor Power rotating speed of the circle through rear sun gear input couples, and is exported power through system output shaft by rear planet carrier；

D3, the input of the motor of internal combustion engine+the second is in parallel and the second motor torque couples hybrid mode：

Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement；

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, front ring gear Transfer power 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 Turn；The motor of Driven by inverter second rotates, gear ring planet row input energy backward after the second motor passes through, and rear planet row is by second The power torque that the power of motor inputs with front ring gear through rear sun gear couples, by rear planet carrier that power is defeated through system output shaft Go out；

D4, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor speed couples hybrid mode：

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch disengages；

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, front ring gear Transfer power 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 Rotation, by preceding planet carrier and preceding planetary gear, planet row input energy, preceding planet row move the first motor by the first motor forward Power couples with the power rotating speed that preceding planet carrier inputs；The motor of Driven by inverter second rotate, the second motor pass through after gear ring backward Planet row input energy, rear planet row couple the power of the second motor with the power rotating speed that front ring gear inputs through rear sun gear, Power is exported through system output shaft by rear planet carrier；

D5, 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 mode：

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement； Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun 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 motor of Driven by inverter first revolves Turn, the first motor is by preceding planet carrier and preceding planetary gear planet row input energy forward, and preceding planet row is by the power of the first motor Coupled with the power rotating speed of preceding planet carrier input；Meanwhile the motor of Driven by inverter second rotate, the second motor pass through after gear ring to Planet row input energy afterwards, the power torque coupling that rear planet row inputs the power of the second motor and front ring gear through rear sun gear Close, exported power through system output shaft by rear planet carrier；

E, power dividing output mode：

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

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch disengage； Power is inputted by internal combustion engine by preceding sun gear, and preceding sun gear drives front ring gear and the rotation of preceding planet carrier, and preceding planet carrier is moved ahead Star-wheel drives passes to the first motor by partial power, and the first motor absorbs energy, the power warp of preceding planet row from preceding planet row Cross front ring gear to export backward, drive rear sun gear, planetary gear rotation+revolution after rear sun gear drive, and then planet carrier after drive Revolution, by the dynamic retarding of front ring gear input, torque is risen, 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 disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement； Power is inputted by internal combustion engine by preceding sun gear, and preceding sun gear drives front ring gear and the rotation of preceding planet carrier, and preceding planet carrier is moved ahead Star-wheel drives passes to the first motor by partial power, and the first motor absorbs energy, the power warp of preceding planet row from preceding planet row Cross front ring gear to export backward, drive rear sun gear, the entirety of planet row turns after planetary gear, rear planet carrier after rear sun gear drive Speed revolution, rear planet row give 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 disengage, rear lock-up clutch disengages and regime clutch disengages； Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun 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 disengage, rear lock-up clutch disengages and regime clutch engagement； Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, the power of preceding planet row Export drive rear sun gear backward by front ring gear, planet row after planetary gear, rear planet carrier, rear gear ring after rear sun gear drives The revolution of overall rotating speed, partial power passes to the second motor by rear gear ring, and the second motor absorbs energy, rear row from rear planet row Star 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 carries Travelled for power drive vehicle, 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 disengage and regime clutch disengages； The electric braking force inputted by the second motor passes sequentially through rear gear ring, rear planetary gear, rear planet carrier, system output shaft output, realizes Braking energy recovering function；

F2, high speed Brake energy recovery pattern：

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement, The electric braking force inputted by the second motor passes sequentially through rear gear ring, regime clutch, rear planet carrier, 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 disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch disengage； Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, Driven by inverter first Motor rotates, and the first motor is by preceding planet carrier and preceding planetary gear planet row input energy forward, and preceding planet row is by the first motor Power coupled with the power rotating speed that preceding planet carrier inputs；The power of preceding planet row exports backward by front ring gear, after drive too Sun wheel, planetary gear, the revolution of rear planet carrier, rear planet row are defeated to system power output by rear planet carrier after rear sun gear drives Shaft；

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

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement； Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, Driven by inverter first Motor rotates, and the first motor is by preceding planet carrier and preceding planetary gear planet row input energy forward, and preceding planet row is by the first motor Power coupled with the power rotating speed that preceding planet carrier inputs；The power of preceding planet row exports backward by front ring gear, after drive too Sun wheel, the overall rotating speed of planet row revolves round the sun after planetary gear, rear planet carrier, rear gear ring after rear sun gear drives, and rear planet row leads to Later planet carrier gives system output shaft power output；

H3, standby parking charge mode：

Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages； Before power is input to by internal combustion engine on sun gear, preceding sun gear drives front ring gear to rotate by preceding planetary gear, and preceding planet row moves 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.

The b1 patterns and the b5 patterns backup each other.

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 First motor still absorbed power in accelerator, charged to electrical source of power, and rotating speed constantly reduced in charging process, The power that first motor absorbs gradually reduces, and being delivered to the power of rear planet row and rotating speed by front ring gear gradually increases, 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, charged to electrical source of power, and the constantly increase rotating speed in charging process, the power that the first motor absorbs are gradual Increase, being delivered to the power of rear planet row and rotating speed 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, Simultaneously the second motor still absorbed power and to electrical source of power charge, and in charging process constantly reduce rotating speed, second The power that motor absorbs gradually reduces, and being delivered to the power of system output shaft and rotating speed by rear planet carrier gradually increases.

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 that rear planet row is inputed to 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.

The hybrid power system and motor vehicle driven by mixed power and hybrid driving method of the present invention, lock-up clutch interrupts in utilization Power between preceding planet row and rear planet row contacts, and can not only form series connection type hybrid power system, to improve engine Operational efficiency in the low speed of vehicle, otherwise, in the prior art in order to tackle the state advanced for a long time in low speed, just The capacity of increase battery is needed, improves the manufacturing cost of vehicle.Lock-up clutch cut-out moves ahead during the present embodiment can also utilize The power that star is arranged between rear planet row contacts so that vehicle can improve as needed in pure electronic or pure charged state Adaptability of the vehicle for different operating modes, reduce the run time of internal combustion engine, improve the comfort level of vehicle ride.

Brief description of the drawings

Fig. 1 is the structural representation of hybrid power system of the present invention；

Fig. 2 is the operation schematic diagram that hybrid power system of the present invention is in low speed electric-only mode；

Fig. 3 is the operation schematic diagram that hybrid power system of the present invention is in high speed electric-only mode；

Fig. 4 is the operation schematic diagram that hybrid power system of the present invention is in the pure electronic bad lectotype of high speed；

Fig. 5 is the operation schematic diagram for 0100 pattern that hybrid power system of the present invention is in pure charge mode；

Fig. 6 is the operation schematic diagram for 0101 pattern that hybrid power system of the present invention is in pure charge mode；

Fig. 7 is the operation schematic diagram for 0110 pattern that hybrid power system of the present invention is in pure charge mode；

Fig. 8 is the operation schematic diagram for 0111 pattern that hybrid power system of the present invention is in pure charge mode；

Fig. 9 is the operation schematic diagram for 0011 pattern that hybrid power system of the present invention is in pure charge mode；

Figure 10 is that hybrid power system of the present invention is in the operation schematic diagram that the pure internal combustion engine of low speed directly drives pattern；

Figure 11 is that hybrid power system of the present invention 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 hybrid power system of the present invention is in serial mixed power pattern；

Figure 13 is that hybrid power system of the present invention is in internal combustion engine+motor second input parallel connection and the coupling mixing of motor second rotating speed Dynamic mode operation schematic diagram；

Figure 14 is that hybrid power system of the present invention is in internal combustion engine+motor second input parallel connection and motor second torque coupling mixes Dynamic mode operation schematic diagram；

Figure 15 is that the present invention is in parallel in internal combustion engine+motor second+motor first input and motor second rotating speed couples hybrid power The operation schematic diagram of pattern；

Figure 16 is the present invention in internal combustion engine+motor second+motor first input parallel connection and motor second torque coupling hybrid power The operation schematic diagram of pattern；

Figure 17 is the operation signal that hybrid power system of the present invention is in the low speed drive pattern of motor first charging+internal combustion engine Figure；

Figure 18 is the operation signal that hybrid power system of the present invention is in the high speed drive pattern of motor first charging+internal combustion engine Figure；

Figure 19 is the operation signal that hybrid power system of the present invention is in the high speed drive pattern of motor second charging+internal combustion engine Figure；

Figure 20 is the operation signal that hybrid power system of the present invention is in the high speed drive pattern of motor second charging+internal combustion engine Figure；

Figure 21 is the operation schematic diagram that hybrid power system of the present invention is in low speed Brake energy recovery pattern；

Figure 22 is the operation schematic diagram that hybrid power system of the present invention is in high speed Brake energy recovery pattern；

Figure 23 be hybrid power system of the present invention be in motor first it is electronic+operation of the low speed drive pattern of internal combustion engine signal Figure；

Figure 24 be hybrid power system of the present invention be in motor first it is electronic+operation schematic diagram of the high speed pattern of internal combustion engine；

Figure 25 is the operation schematic diagram that hybrid power system of the present invention is in standby parking charge mode；

Figure 26 is hybrid power system and hybrid electric vehicle in motor vehicle driven by mixed power of the present invention with hybrid power system Connection structural representation.

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 the hybrid power system of embodiment and accompanying drawing to the present invention and motor vehicle driven by mixed power and combination drive side 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 machine Tool connects, and the mechanical connection process does not include various clutches.

As shown in figure 1, the hybrid power system of the present invention, including internal combustion engine 1, sun gear 15, preceding planet carrier before including 14 and the preceding planet row of front ring gear 6, include the rear planet row of rear sun gear 12, rear planet carrier 13 and rear gear ring 7, preceding planet row Preceding planet carrier 14 connect the first motor 2, the rear gear ring 7 of rear planet row connects the second motor 10, the first motor, the second motor point Do not electrically connected with inverter 4, inverter electrically connects with electrical source of power 5.After the front ring gear 6 and rear planet row of the preceding planet row Sun gear 12 is connected, and the output end of the internal combustion engine 1 is connected with the preceding sun gear 15 of preceding planet row, the rear row of the rear planet row Carrier 13 is connected with system output shaft 11, and described preceding planet carrier 14 is connected with to before preceding planet carrier 14 progress locking or release Lock-up clutch 3, preceding planet carrier 14 can be locked in the presence of preceding lock-up clutch 3 on planetary transmission housing or by Discharge and freely rotate.Described rear sun gear 12, which is connected with, carries out locking or the middle lock-up clutch of release to rear sun gear 12 16, rear sun gear 12 can be locked on planetary transmission housing or be released in the presence of middle lock-up clutch 16 and oneself By rotating.Described rear gear ring 7 is connected with and locking or the rear lock-up clutch 8 of release is carried out to rear gear ring 7, the rear gear ring 7 Regime clutch 9 is provided between rear planet carrier, the regime clutch 9 is used for planet carrier 13 and rear gear ring 7 after making when combining Link together, and then make rear planet row as a unitary rotation, and separation when can make after gear ring 7, rear planet carrier 13 and rear sun gear 12 rotate relatively freely.

The driving method of the hybrid power system of the present invention is as shown in table 1.In order to save space in table, the first motor in table Represented with M1, the second motor is represented with M2：

With reference to table 1 and Fig. 2-25, illustrate the driving method of the hybrid power system of the present invention.Wherein, in figure, use Arrow represents the flow direction of energy.In table 2, lock-up clutch locking or pattern clutch before, during and after 1 expression in the row of left side 4 Device engages, and lock-up clutch or regime clutch disengage before, during and after 0 expression.I.e.：

When preceding lock-up clutch locking, the rotor of the first motor and preceding planet carrier are lockable, it is impossible to are rotated, such as Fruit front ring gear or preceding sun gear rotate, it will the preceding planetary gear idle running before drive on planet carrier, preceding planetary gear only turn into One idle pulley, power are transmitted between front ring gear or preceding sun gear without being associated with the first motor, and now preceding planet row will A single reduction gear can be become.If preceding lock-up clutch disengages, the rotor of preceding planet carrier and the first motor will rotate, Preceding planet row is in planetary gear speed-changing state, and power transmission may occur 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 Vertical needs to select to run or do not run according to respective.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 disengages, 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 power can only occur to transmit without closing with the second motor between rear planet carrier and rear sun gear Connection.If rear lock-up clutch disengages, the rotor of rear gear ring and the second motor will rotate, and rear planet row is in planetary gear Speed change state, power transmission may occur between the second motor and rear planet row.

When regime clutch engages, together with rear gear ring will be relatively fixed between rear planet carrier, due to Do not relatively rotate between both, rotation will not also occur for planetary gear, so 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 Jointly with a rotating speed rotation 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, the symbol in each pattern below is illustrated：

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 fast ratio of preceding planet row, k₂For the fast ratio of rear 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_outFor system The rotating speed of output shaft.

The planetary series-parallel connection dynamical system specific works pattern is：

The driving method of the hybrid power system of the present invention, including following mode of operation：

A, electric-only mode：

Internal combustion engine 1 is closed, and electrical source of power provides power drive vehicle traveling to the second motor 10, and the pattern is divided into low speed Pure electronic, the high pure electronic both of which of 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 disengages, middle locking from Clutch disengages and rear lock-up clutch disengages, regime clutch engagement.After the now input of hybrid power system is is connected to The second motor 10 on gear ring, exports and is for the system output shaft on rear planet carrier 13, specific torque relationship：T_out=T_MG2, For the speed of planet row than being 1, the state is suitable for high vehicle speed cruise operating mode afterwards.

The energy of other forms is now changed into electric energy by power supply, passes through the motor of Driven by inverter second, the second motor Done work using electric energy, ring gear against rotation after the second motor driven, due to regime clutch engage, rear planet row will become one it is whole Body, i.e., rear gear ring, rear planet carrier and rear sun gear are rotated with same rotating speed jointly, and now the first motor dallies, and internal combustion engine is not Turn, the rotating speed of the first motor can be just so that the inner side of planetary gear be around the static preceding sun before preceding sun gear rotation rotating speed guarantee Wheel revolution, and the fit inside of the outside of preceding planetary gear and front ring gear rotates.The rotating speed n of first motor₁=n₂×k₁/(1+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 disengages, middle locking from Clutch locking, rear lock-up clutch disengage, regime clutch disengages.The now input of hybrid power system is to be connected to rear gear ring On the second motor 10, export and be driven for rear planet carrier 13, rear gear ring 7 with rear planet carrier 15, 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, What is actually worked in hybrid power system is only that rear planet row and its input, the part of output, preceding planet come power transmission In and do not work.

Now the energy of other forms is changed into electric energy by energy by power supply, by the motor of Driven by inverter second, second Motor is done work using electric energy, ring gear against rotation after the second motor driven, and because rear sun gear is fixed, planet row now becomes after institute One single reduction gear, planetary gear and rear planet carrier rotate around rear sun gear after rear gear ring drives, and rear planet carrier is defeated by system Go out shaft power.

It is further to note that under the pure motoring condition of low 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 rotate.If so as shown in figure 4, again that preceding planet carrier is locked, although Can play with effect same in Fig. 3, but so obviously increase the locked link of unnecessary needs, reduce corresponding portion The service life of part.So when low speed is pure electronic, it is not suitable for also that preceding lock-up clutch is locked.

Electric-only mode can eliminate the idling oil consumption of internal combustion engine, improve vehicle fuel economy.Also, locked by controlling Only clutch and regime clutch realize low speed and high speed both of which, adapt to reduce while car low speed high torque demand To the speed demand of the second motor, in electrical source of power electricity abundance, vehicle is driven using the second motor as far as possible, improves vehicle Economy.

B, pure charge mode：

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

B1,0100 pattern：

As shown in figure 5, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch disengage and regime clutch disengages.Because middle lock-up clutch is locked, thus front ring gear and Rear sun gear cannot rotate, so the power transmission between preceding planet row and rear planet row is interrupted.Internal combustion engine output is dynamic Power, the first motor and preceding planet carrier are driven by oil-engine driven preceding sun gear, and power is passed to preceding planet by preceding sun gear Frame, the first electric power generation being connected with preceding sun gear.

B2,0101 pattern：

As shown in fig. 6, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch disengage and regime clutch engagement.Because middle lock-up clutch is locked, thus front ring gear and Rear sun gear cannot rotate, so the power transmission between preceding planet row and rear planet row is interrupted.Because middle locking from Clutch locking, the power transmission between forward and backward planet row has been interrupted, so no matter whether regime clutch engages, The process of the generating transmission of planet row before actually having no effect on.Internal combustion engine exports power, the first motor and preceding planet carrier by by Oil-engine driven preceding sun gear is driven, and power is passed to preceding planet carrier by preceding sun gear, the first electricity being connected with preceding sun gear Machine generates electricity.

B3,0110 pattern：

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

B4,0111 pattern：

As shown in figure 8, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch disengages, middle locking from Clutch locking, rear lock-up clutch locking, regime clutch engagement.Because middle lock-up clutch is locked, so front ring gear is with after Sun gear cannot rotate, so the power transmission between preceding planet row and rear planet row is interrupted.Because middle locking clutch Device locking, the power transmission between forward and backward planet row have been interrupted, thus no matter after lock-up clutch whether locking, Whether regime clutch engages, the process of the generating transmission of planet row before actually having no effect on.But in this pattern, due to rear Lock-up clutch also achieves latch functions, so can also undertake the torque of a part of locking, lock-up clutch is negative in reduction Load.Internal combustion engine input power, the first motor and preceding planet carrier are driven by oil-engine driven preceding sun gear, and preceding sun gear is dynamic Power passes to preceding planet carrier, the first electric power generation being connected with preceding sun gear.

B5,0011 pattern：

As shown in figure 9, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch locking and regime clutch engage.Because regime clutch engages, then rear planet row Either gear ring and rear planet carrier can only be rotated with identical rotating speed afterwards, or it can not rotate, and because rear lock-up clutch locking, Gear ring can not rotate after institute.Planet row can not all rotate after institute.So this pattern, substantially locked rear sun gear, I.e. locked front ring gear the problem of it is upper identical with 0100 pattern, the power transmission between forward and backward planet row also has been cut off.Internal combustion Machine input power, the first motor and preceding planet carrier are driven by oil-engine driven preceding sun gear, and preceding sun gear transmits power To preceding planet carrier, the first electric power generation being connected with preceding sun gear, if middle lock-up clutch breaks down, can not locking, that 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, when the failure for being unable to locking occurs in lock-up clutch in being used as, realize the backup of pure power generation mode.

More than in 5 kinds of patterns, driven from internal combustion engine to system input power, the first motor and preceding planet carrier by internal combustion engine Dynamic preceding sun gear drives, and the first motor being connected with preceding planet carrier is in generating state.This state is by the work(of internal combustion engine Rate is transformed on power supply by generator and inverter and stored, and 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 equal Ensure intact, by one kind in 0011 or 0100 pattern, can still realize pure charge mode.I.e. described b1 patterns and the b5 Pattern backups each other.

If in addition, using the internal combustion engine in pure charge mode as power input element and the first motor as power output Position of the element in power transmittance process is mutually reverse, and 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, and the pattern is divided into low The pure internal combustion engine of speed directly drives 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：

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 disengages, rear lock-up clutch locking and regime clutch disengage.Due to preceding lock-up clutch locking, so preceding planet row Reform into a single reduction gear, speed reducing ratio k₁.The then also locking of lock-up clutch 8, so the rotor of the second motor will not Rotation, energy will not be transmitted between the gear ring of the second motor and rear planet row, and rear planet row is now also changed into a list Level decelerator, speed reducing ratio 1+k₂。

Before power is output to by internal combustion engine on sun gear, the planetary gear that preceding sun gear is not revolved round the sun by only rotation passes power Front ring gear is passed, front ring gear drives rear sun gear rotation, planet carrier and the rotation of rear planetary gear, rear planet carrier after rear sun gear drives Power is exported by system output shaft.

Now the input of hybrid power system is the internal combustion engine 1 on sun gear 14 before being connected to, export as rear planet carrier and System output shaft, specific torque relationship are：T_out=(1+k₂)×k₁×T_e, be suitable for electrical source of power electricity it is inadequate when it is low Speed drives operating mode, directly drives vehicle by internal combustion engine, the pattern can directly be driven by internal combustion engine, make the power of internal combustion engine not The first motor is distributed to, is fully allocated to output shaft, eliminates the major part of existing planet combined hybrid system internal combustion engine in low speed The problem of electrical power accounting caused by power distribution to the first motor is too high, electromechanical two times transfer is effectively reduced to dynamical system The influence of efficiency.

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 disengages, rear lock-up clutch disengages and regime clutch engagement.Due to preceding lock-up clutch locking, so preceding planet row Reform into a single reduction gear, speed reducing ratio k₁.Now the second motor is in idling conditions under the control of inverter, idle running Rotating speed be the overall rotating speed (rear planet row now not speed change) of rear planet row, i.e. n₂=1/k₁×n_e。

Before power is output to by internal combustion engine on sun gear, the planetary gear that preceding sun gear is not revolved round the sun by only rotation passes power Pass front ring gear, front ring gear drives rear sun gear rotation, planet row after planet carrier and rear planetary gear after rear sun gear drives Overall rotating speed rotation, rear planet carrier export power by system output shaft.

Now the input of hybrid power system is the internal combustion engine 1 on sun gear 14 before being connected to, and is exported as rear planet carrier 13, Specifically torque relationship is：Tout=k₁× Te, is suitable for that vehicle is travelled with higher speed and vehicle driving force demand is positioned at interior Driving operating mode during combustion engine high efficient district, existing combined hybrid system existing data-collection problem when internal combustion engine directly drives is avoided, improved Dynamical system efficiency.

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 is defeated backward Enter power, then selection is divided into following 5 kinds of moulds to the first motor in generating or electronic or off position, the pattern as needed Formula：

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 disengages, middle locking from Clutch locking, rear lock-up clutch disengage and regime clutch disengages.Because middle lock-up clutch is locked, thus front ring gear and Rear sun gear cannot rotate, so the power transmission between preceding planet row and rear planet row is interrupted.So preceding planet row The generating of oneself or electronic work, the needs that the second motor can travel according to vehicle completely can be each completed with rear planet row Export most suitable rotating speed and moment of torsion, the first motor can then run to the needs of optimum operation section to set according to diesel engine Charging is completed in optimal rotating speed and torque, is not disturbed therebetween.Now, the hybrid power system of the present embodiment reforms into Series connection type hybrid power system.

Power is inputted by internal combustion engine by preceding sun gear, planet carrier and preceding planetary gear before passing to, and preceding planet carrier drives the One electric power generation.Second motor passes to rear planetary gear and rear planet by Driven by inverter, backward gear ring input power, power Frame, rear planet carrier export power through system output shaft.The now power input of system, has reformed into the motor of internal combustion engine+the second, 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 a manner of low speed is run.Such as Fruit cancels serial mixed power pattern, then internal combustion engine operates under relatively low rotating speed, and energy utilization rate is low.So tandem Hybrid mode or necessary.In serial mixed power pattern, internal combustion engine can be run with optimal rotating speed, be improved The utilization rate of fuel oil, and because the operation power of internal combustion engine is larger, rapidly can also be full of the electric energy in battery, reduce The run time of internal combustion engine, reduces influence of the vibration of internal combustion engine for car body and passenger inside the vehicle.And driving side, can To be exported completely by the second motor.Especially in the case of traffic congestion, vehicle stops and goes, even if advance, automobile Speed is relatively low, and windage is also smaller, and acceleration is also little, so required output torque is also little, completely can be by the second electricity Machine undertakes.

D2, the input of the motor of internal combustion engine+the second is in parallel and the second motor speed couples hybrid mode：

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 disengages, rear lock-up clutch disengages and regime clutch disengages.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 to play a part of idle pulley, the power on preceding sun gear is delivered on front ring gear.

Power is inputted by internal combustion engine by preceding sun gear, and the preceding planetary gear that preceding sun gear does not revolve round the sun through a rotation drives nipper Circle rotation, front ring gear are 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 second rotates, and planet row input energy, rear planet row are electric by second backward for gear ring after the second motor passes through The power of machine couples with the power rotating speed that front ring gear inputs through rear sun gear, by rear planet carrier that power is defeated through system output shaft Go out.

The now power input of system, has reformed into the motor of internal combustion engine+the second, and output has reformed into system output shaft.System The output torque of system is：Tout=(1+k₂)×k₁×Te。

In this mode, the power of internal combustion engine couples by the rotating speed of single-stage speed reducing planet row with after of preceding planet row, Rotating speed goes for vehicle in the occasion that speed is relatively low, required torque is larger there occurs larger change.Especially suitable for Low-speed stage, speed change more frequently occasion, such as frequently accelerate, slow down when public transport pulls in outbound.

D3, the input of the motor of internal combustion engine+the second is in parallel and the second motor torque couples hybrid mode：

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 disengages, rear lock-up clutch disengages 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 to play a part of idle pulley, the power on preceding sun gear is delivered on front ring gear.Because regime clutch engages, row after institute Star row can only be rotated in the form of an entirety, after the power can of the second motor is output in a manner of torque coupling On planet row.

Power is inputted by internal combustion engine by preceding sun gear, before the preceding planetary gear that preceding sun gear is not revolved round the sun by only rotation drives Gear ring is rotated, and front ring gear is transferred power on rear sun gear, planetary gear and the later planet of rear planet carrier after rear sun gear drives The overall rotating speed rotation of row；Meanwhile the motor of Driven by inverter second rotates, planet row inputs gear ring backward after the second motor passes through Energy, rear planet row couples the power of the second motor with the power torque that front ring gear inputs through rear sun gear, by rear planet carrier Power is exported through system output shaft.

The now power input of system, has reformed into the motor of internal combustion engine+the second, and output has reformed into system output shaft.System The output torque of system is：Tout=T_MG2+k₁×Te。

In this pattern, because rear planet row simply plays a part of torque coupling, without playing a part of deceleration, institute It is the decelerating effect that have passed through preceding planet row with the power of internal combustion engine, now the speed of vehicle is higher.Institute in this manner can be with Suitable for vehicle speed is higher, occasion that required torque is larger.

D4, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor speed couples hybrid mode：

As shown in figure 15, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch disengages.In this pattern, due to all lock-up clutches or Regime clutch disengages, 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 sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, front ring gear Transfer power on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；Meanwhile Driven by inverter first Motor rotates, and the first motor is by preceding planet carrier and preceding planetary gear planet row input energy forward, and preceding planet row is by the first motor Power coupled with the power rotating speed that preceding planet carrier inputs；Meanwhile the motor of Driven by inverter second rotates, after the second motor passes through Planet row input energy, the power that rear planet row inputs the power of the second motor and front ring gear through rear sun gear turn gear ring backward Speed coupling, is exported power through system output shaft by rear planet carrier.

The now input of system is internal combustion engine and the first motor, the second motor, and the output of system is system output shaft.System Torque, Tout=(1+k₂)×k₁×Te。

In this mode, because forward and backward planet row all serves the effect slowed down with rotating speed coupling, so, internal combustion engine Power also go through and significantly slow down, so speed now is relatively low, by power caused by internal combustion engine, is delivered to and is The torque of system output shaft is just larger.Due in this pattern, due to have passed through the deceleration of two-stage, the rotating speed of internal combustion engine can be with In higher rotating speed, internal combustion engine can be operated in the rotating speed section negatively correlated with torque.Because the speed of two motors is drawn Enter, can be when motor raising speed so that the rotating speed of internal combustion engine declines, torque rises.Such case goes for low car The occasion of fast, big torque, such as startup of the fully loaded vehicle after parking during upward slope, this pattern can also reduce interior The power output of combustion engine at this stage, reduce discharge of the internal combustion engine in non-optimal operation by sections.

D5, 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 mode：

As shown in figure 16, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.In this pattern, except regime clutch engagement causes Afterwards outside planet row unitary rotation, all lock-up clutches disengage, so all motors can be 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 inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, front ring gear Transfer power on rear sun gear, planetary gear and the rotation of rear planet carrier after rear sun gear drives；Meanwhile Driven by inverter first Motor rotates, and the first motor is by preceding planet carrier and preceding planetary gear planet row input energy forward, and preceding planet row is by the first motor Power coupled with the power rotating speed that preceding planet carrier inputs；Meanwhile the motor of Driven by inverter second rotates, after the second motor passes through Planet row input energy, the power that rear planet row inputs the power of the second motor and front ring gear through rear sun gear turn gear ring backward Square couples, and is exported power through system output shaft by rear planet carrier.

The now input of system is internal combustion engine and the first motor, the second motor, and the output of system is system output shaft.System Torque, Tout=T_MG2+k₁×Te。

In this mode, turn because preceding planet row all serves to slow down to play with the effect of rotating speed coupling, rear planet row The effect of square coupling, so, the power of internal combustion engine also goes through deceleration, so speed now is middle speed, passes through internal combustion engine Caused power, the torque for being delivered to system output shaft are just larger.Such case goes for middle speed, big torque Occasion, such as fully loaded vehicle gone up a slope during upward slope with middle speed, and this pattern can also be reduced to realize phase With general power output when, the power output of internal combustion engine at this stage, reduce discharge of the internal combustion engine in non-optimal operation by sections.

E, power dividing output mode：

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

As shown in figure 17, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch disengages, middle locking from Clutch disengages, rear lock-up clutch locking and regime clutch disengage.Due to rear lock-up clutch locking, so the second motor The energy of planet row after will not receiving, rear planet row now reform into a single reduction gear, the power that will be inputted by front ring gear Slow down, rise torque, export to rear planet carrier.

Power is inputted by internal combustion engine by preceding sun gear, and preceding sun gear drives front ring gear and the rotation of preceding planet carrier, preceding planet Frame is driven by preceding planetary gear partial power passing to the first motor, and the first motor absorbs energy, preceding planet row from preceding planet row Power exported backward by front ring gear, drive rear sun gear, rear sun gear drive after planetary gear rotation+revolution, and then drive Planet carrier revolves round the sun afterwards, by the dynamic retarding of front ring gear input, rises torque, is exported by rear planet carrier to system output shaft.

The now input of system is internal combustion engine, and the output of system is rear planet carrier and the first motor.The output torque of system For Tout=(1+k₂)×k₁×T。

When the charging that charging when parking can not fully meet electrical source of power needs, this pattern can be used, Timely to supplement electrical source of power, the charge level of suitable motoring condition work is reached.Planet row is in before being additionally, since The state of rotating speed coupling, so, this pattern goes for when vehicle accelerates.Particularly, when vehicle was accelerating Cheng Zhong, the rotating speed corresponding to the rotating speed to high speed of internal combustion engine is first improved, the first motor still absorbed power in accelerator, to Electrical source of power is charged, and rotating speed is constantly reduced in charging process so that the power that the first motor absorbs gradually reduces, and leads to Crossing front ring gear and being delivered to the power of rear planet row and rotating speed gradually increases, so as to which the power output of planet row and output turn after increasing Speed.Conversely, it 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 level of twenty or thirty kilometer speed per hour, at this time, if the electricity of electrokinetic cell is not Foot, or still have charging surplus, it is possible to from this pattern, internal combustion engine intensive work on the one hand can be made in the slightly higher area of rotating speed Section, the efficiency of combustion of internal combustion engine is improved, still further aspect can timely supplement the electricity of electrical source of power, and being at hand possible Low speed traveling in electric-only mode or the energy expenditure of air-conditioning during parking or other electrical equipment lay in sufficient energy.

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 First motor still absorbed power in accelerator, charged to electrical source of power, and rotating speed constantly reduced in charging process, The power that first motor absorbs gradually reduces, and being delivered to the power of rear planet row and rotating speed by front ring gear gradually increases, increase The power output and output speed of planet row afterwards.

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 disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.Because regime clutch engages, the idle running of the second motor, Planet row now reforms into an entirety and rotated after institute, and the power inputted by front ring gear is directly output into rear planet Frame.

Power is inputted by internal combustion engine by preceding sun gear, and preceding sun gear drives front ring gear and the rotation of preceding planet carrier, preceding planet Frame is driven by preceding planetary gear partial power passing to the first motor, and the first motor absorbs energy, preceding planet row from preceding planet row Power exported backward by front ring gear, drive rear sun gear, rear sun gear drive after planetary gear, planet row after rear planet carrier Overall rotating speed revolution, by front ring gear input dynamic retarding, rise torque, exported by rear planet carrier to system output shaft.This When system input be internal combustion engine, the output of system is rear planet carrier and the first motor.The output torque of system is Tout=k₁ ×Te。

When the charging that charging when parking can not fully meet electrical source of power needs, this pattern can be used, Timely to supplement electrical source of power, the charge level of suitable motoring condition work is reached.Planet row is in before being additionally, since The state of rotating speed coupling, so, this pattern goes for playing peak clipping when vehicle is in reduction of speed in high-speed cruising Effect.Particularly, when vehicle is in down speeding procedure, internal combustion engine is first made to keep original rotating speed, while the first motor still absorbs Power, charged to electrical source of power, and the constantly increase rotating speed in charging process so that the power that the first motor absorbs is gradual Increase, being delivered to the power of rear planet row and rotating speed by front ring gear gradually reduces, so as to the power output of planet row after increasing The pattern of low speed operation is reduced to output speed.

For example, in city, vehicle in high speed during travelling, it is necessary to drive into speed relatively low region or close During the drop speed of crossing, at this time, if the not enough power supply of electrokinetic cell or still having the space of charging, it is possible to select This pattern, torque during the second motor absorbed power can be gradually stepped up, so, the total torque of system external output will drop Low, so the strength that driving automobile advances will gradually weaken, the deceleration of automobile will gradually increase, rather than increase suddenly Add, the uncomfortable sensation that passenger can be avoided to take, the possibility that occupant's injury occurs can also be reduced.An other side Face can timely supplement the electricity of electrical source of power, be the electric-only mode in possible upcoming running at a low speed or parking The energy expenditure of air-conditioning or other electrical equipment in journey lays in sufficient energy.

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

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 disengages, rear lock-up clutch disengages and regime clutch disengages.Due to preceding lock-up clutch locking, so the first motor The energy of planet row before will not receiving, and preceding sun gear will not rotate, preceding planet row now reforms into a single reduction gear, will The dynamic retarding that is inputted by preceding planet carrier, torque is risen, exported to rear planet row.The now input of system is internal combustion engine, system Export as rear planet carrier and the second motor.The output torque of system is Tout=(1+k₂)×k₁×Te。

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, preceding planet The power of row exports backward by front ring gear, drives rear sun gear, planetary gear, rear planet carrier, rear gear ring after rear sun gear drive Partial power is passed to the second motor by rotation, rear gear ring, and the second motor absorbs energy from rear planet row, and rear planet row passes through rear Planet carrier is remaining power output to system output shaft.

When the charging that charging when parking can not fully meet electrical source of power needs, this pattern can be used, Timely to supplement electrical source of power, the charge level of suitable motoring condition work is reached.Planet row is in before being additionally, since The state of rotating speed coupling, so, this pattern goes for when vehicle accelerates.Particularly, when vehicle was accelerating Cheng Zhong, first improves the rotating speed corresponding to the rotating speed to high speed of internal combustion engine, while the second motor still absorbed power and to power Power source charges, and rotating speed is constantly reduced in charging process so that the power that the second motor absorbs gradually reduces, by rear Planet carrier, which is delivered to the power of system output shaft and rotating speed, gradually to be increased, until increasing to the level of high speed operation.Conversely, Falling-rate period available for 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 from this pattern, internal combustion engine intensive work on the one hand can be made in the slightly higher area of rotating speed Section, the efficiency of combustion of internal combustion engine is improved, still further aspect can timely supplement the electricity of electrical source of power, and being at hand possible Low speed traveling in electric-only mode or the energy expenditure of air-conditioning during parking or other electrical equipment lay in sufficient energy.

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 disengages, rear lock-up clutch disengages and regime clutch engagement.Due to preceding lock-up clutch locking, so the first motor The energy of planet row before will not receiving, and preceding sun gear will not rotate, preceding planet row now reforms into a single reduction gear, will The dynamic retarding that is inputted by preceding planet carrier, torque is risen, exported to rear planet row.

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, preceding planet The power of row exports drive rear sun gear backward by front ring gear, planetary gear after rear sun gear drives, rear planet carrier, rear gear ring with Partial power is passed to the second motor by the overall rotating speed revolution of planet row, rear gear ring afterwards, and the second motor absorbs from rear planet row Energy, rear planet row is by rear planet carrier remaining power output to system output shaft.The now input of system is internal combustion engine, is The output of system is rear planet carrier and the second motor.The output torque of system is Tout=k₁×Te-T_MG2。

When the charging that charging when parking can not fully meet electrical source of power needs, this pattern can be used, Timely to supplement electrical source of power, the charge level of suitable motoring condition work is reached.

For example, in city, vehicle in high speed during travelling, it is necessary to drive into speed relatively low region or close During the drop speed of crossing, at this time, if the not enough power supply of electrokinetic cell or still having charging surplus, it is possible to from this Pattern, torque during the second motor absorbed power can be gradually stepped up, so, the total torque of system external output will reduce, So the strength that driving automobile advances will gradually weaken, the deceleration of automobile will gradually increase, rather than increase suddenly, can To avoid the uncomfortable sensation that passenger takes, the possibility that occupant's injury occurs can also be reduced.Still further aspect can Timely to supplement the electricity of electrical source of power, for the electric-only mode or parking process in possible upcoming low speed traveling In air-conditioning or the energy expenditures of other electrical equipment lay in sufficient energy.

F, Brake energy recovery pattern：

Internal combustion engine 1 is closed, and the first motor 2 does not work, and the second motor 10 generates electricity, the friction catch of the second motor 10 and vehicle System 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 working method of lock-up clutch and regime clutch 9 is before, during and after：Preceding lock-up clutch takes off Open, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages.The now output of hybrid power system 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 leads to successively Later gear ring, rear planetary gear, rear planet carrier, system output shaft output, realize braking energy recovering function.Specific torque relationship For：T_out=(1+k₂)/k₂×T_MG2, it is suitable for the low big torque braking of speed, can effectively utilizes the stopping power of the second motor, fill Divide recovery braking energy, significantly improve 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 disengages, middle locking from Clutch disengages, rear lock-up clutch disengages 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, by the input of the second motor electric braking force successively Exported by rear gear ring, regime clutch, rear planet carrier, system output shaft, realize braking energy recovering function.Specific torque Relation is：T_out=T_MG2, it is suitable for the braking of high speed, to the brake force and speed demand of the second motor when can reduce high speed, Reduce in the volume, cost and design of the second motor to the demand of the bearing range of speeds.

G, not movable state：

If preceding lock-up clutch locking, then the preceding sun gear of preceding planet row can not move, in preceding planet row, as long as Engine rotation, just rear planet row must be passed to by front ring gear, rear sun gear 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 the first motor to complete to fill during traveling having been stated in e3 and e4, in automobile Beyond electricity work, the first motor in following pattern can also be present and complete work or the second motor generation instead of the second motor The state of work is completed for the first motor.

For example, the second motor replaces the state of the first motor powered, specifically include：

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 disengages, middle locking from Clutch disengages, rear lock-up clutch locking and regime clutch disengage.Due to rear lock-up clutch locking, so the second motor The energy of planet row after will not receiving, rear planet row now reform into a single reduction gear, the power that will be inputted by front ring gear Slow down, rise torque, export to rear planet carrier.

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, meanwhile, it is inverse Become device and drive the rotation of the first motor, the first motor passes through preceding planet carrier and preceding planetary gear planet row input energy forward, preceding planet Row couples the power of the first motor with the power rotating speed that preceding planet carrier inputs；The power of preceding planet row is defeated backward by front ring gear Go out, drive rear sun gear, planetary gear, the revolution of rear planet carrier after rear sun gear drive, rear planet row is by rear planet carrier power Export to system output shaft.The now input of system is internal combustion engine and the first motor, and the output of system is rear planet carrier.System Output torque is Tout=(1+k₂)×k₁×Te。

When the second motor breaks down, when can not be 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 can be applicable there occurs larger change 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 disengages, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch engagement.Preceding planet row is now planet speed-change state.

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, meanwhile, it is inverse Become device and drive the rotation of the first motor, the first motor passes through preceding planet carrier and preceding planetary gear planet row input energy forward, preceding planet Row couples the power of the first motor with the power rotating speed that preceding planet carrier inputs；The power of preceding planet row is defeated backward by front ring gear Going out, drive rear sun gear, the overall rotating speed of planet row revolves round the sun after planetary gear, rear planet carrier, rear gear ring after rear sun gear drive, Planet row gives system output shaft by rear planet carrier power output afterwards.

The now input of system is internal combustion engine and the first motor, and the output of system is rear planet carrier.The output torque of system For Tout=k₁×T_e。

When the second motor breaks down, when can not be 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 torque couples hybrid power " pattern.In such a mode, the power of internal combustion engine passes through The direct-drive of the single-stage speed reducing of preceding planet row and rear planet row, rotating speed go for vehicle and existed there occurs certain change 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, it is also as follows with a kind of parking charge mode, specific works state：

As shown in figure 25, the state of each lock-up clutch and regime clutch is：Preceding lock-up clutch locking, middle locking from Clutch disengages, rear lock-up clutch disengages and regime clutch disengages.Due to preceding lock-up clutch locking, so the first motor The energy of planet row before will not receiving, and preceding planet carrier will not rotate, preceding planet row now reforms into a single reduction gear, will The dynamic retarding that is inputted by preceding sun gear, torque is risen, exported to rear planet row.During due to parking, can by wheel braking, so System output shaft and rear planet carrier are equivalent to locked, and rear planet carrier can not rotate, and rear planetary gear only turns into an idle pulley, passed Graduating power, rear planet row now also become a single reduction gear.

Before power is input to by internal combustion engine on sun gear, preceding sun gear drives front ring gear to rotate by preceding planetary gear, moves 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 the input of system is internal combustion engine, is exported as the second motor.

In summary, the present embodiment employs the power that middle lock-up clutch is interrupted between preceding planet row and rear planet row and joined System, can not only form series connection type hybrid power system, to improve operational efficiency of the engine in the low speed of vehicle, otherwise, In the prior art in order to tackle for a long time in low speed advance state, it is necessary to increase the capacity of battery, improve vehicle Manufacturing cost.The power that lock-up clutch is cut off between preceding planet row and rear planet row during the present embodiment can also utilize contacts, Vehicle is allowd in pure electronic or pure charged state, to improve adaptability of the vehicle for different operating modes as needed, Reduce the run time of internal combustion engine, improve the comfort level of vehicle ride.

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

If middle lock-up clutch is damaged, then can select b5 patterns, planet row and front ring gear after pinning, realize Charging of the internal combustion engine to the first motor under dead ship condition；If the first motor is damaged, can still be realized by h3 patterns Charging under dead ship condition, the charging under driving states can also be realized by e3, e4 pattern；If the second motor occurs Damage, can not realize d2, d3 pattern, but can be in motoring condition by the first motor in h1, h2 pattern, to realize parallel connection Formula hybrid power operating mode.So pattern except almost having used all energy conversion devices --- institute as such as d4, d5 Pattern and serial mixed power pattern of the possible power source all as input, and the mould that can only be completed by the second motor Formula --- outside electric-only mode, all common patterns, there is the alternative mode for damage of components.So even if certain A little component malfunctions, can not normal work, then also hybrid power system will not be caused can not to realize some basic functions, carried High system is directed to the adaptibility to response of unit failure.

The motor vehicle driven by mixed power with hybrid power system of the present invention, as shown in figure 26, the internal combustion of motor vehicle driven by mixed power Machine is gasoline engine, has used the hybrid power system described in embodiment 1, by the system output shaft 11 of described hybrid power system The drive axle 17 of connection hybrid power vehicle.

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 using b1 charge modes, middle lock-up clutch Locking, internal combustion engine rotated when hot car caused by energy, can be supplemented by the first motor to electrical source of power.

Then vehicle launch, can select to use the low speed electric-only modes of a1, because involving starting up process, torque It is slightly larger, by the second output power of motor, vehicle is directly driven without the process of a liter rotating speed, drop torque.When vehicle continues to add Speed, when running to fair speed, the high speed electric-only modes of a2 can be opened, vehicle is still driven by the second motor, but It is the liter rotating speed through planet row later, realizes higher speed.

If starting to start internal combustion engine, due to already having higher speed, so lock-up clutch is discharged, can use 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, reduce complicated using only control program program caused by the first motor driven internal combustion engine start. Meanwhile because the Anti-vibration Design of vehicle is in caused by the high rotary speed movement stage mainly for internal combustion engine is in low in internal combustion engine During the rotating speed operation phase vehicle can not vibration isolation, passenger inside the vehicle feel under the weather, and high-speed starting internal combustion engine exactly can be great Mitigate this problem, reduce the negative effect to passenger.

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

If running into higher speed, and when load is larger, it can use that d2 patterns --- the motor of internal combustion engine+the second is defeated Enter in parallel and the second motor speed coupling hybrid mode, such as the climbing in high speed.Run into higher speed, and load When very 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 Hybrid mode is coupled, allows all energy conversion devices to be climbed all in input acting state, such as the high speed of full load Slope.

When gradually drop speed is needed, e1 or e2 patterns can be started, remain able to make diesel engine be in higher Rotating 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, because the acceleration under congestion status is also not too large, to make vehicle accelerate required moment of torsion also not too large, so low speed It is pure electronic to deal with completely.If the storage energy deficiency of electrical source of power, can use d1 patterns --- 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 deficiency 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, all energy conversion devices are allowed all in input acting state.

If now vehicle is stifled on the way, and when other electrical equipments need electric energy, b1 moulds can be started 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 the very big vehicle launch feelings of torque 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.

Claims (8)

1. a kind of hybrid power system, including 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 gear ring（7）Rear planet row, the preceding planet The preceding planet carrier of row（14）Connect the first motor（2）, the rear gear ring of the rear planet row（7）Connect the second motor（10）, it is described The front ring gear of preceding planet row（6）With the rear sun gear of the rear planet row（12）Connection, the internal combustion engine（1）Output end and institute The preceding sun gear of planet row before stating（15）Connection, the rear planet carrier of the rear planet row（13）With system output shaft（11）Connection, Characterized in that, described preceding planet carrier（14）It is connected with to the preceding planet carrier（14）Carry out the preceding locking of locking or release from Clutch（3）, described rear sun gear（12）It is connected with to the rear sun gear（12）Carry out the middle locking clutch of locking or release Device（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）, institute State rear gear ring（7）Regime clutch is provided between the rear planet carrier（9）.

A kind of 2. motor vehicle driven by mixed power of the hybrid power system with described in claim 1, it is characterised in that hybrid power system The system output shaft of system（11）The drive axle of connection hybrid power vehicle（17）.

3. the driving method of the hybrid power system described in a kind of claim 1, it is characterised in that including following mode of operation：

A, electric-only mode：

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

A1, high speed electric-only mode：

Preceding lock-up clutch disengages, middle lock-up clutch disengages and rear lock-up clutch disengages, regime clutch engagement；

By the motor of Driven by inverter second, ring gear against rotation after the second motor driven, rear gear ring, rear planet carrier and rear sun gear are total to 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 planetary gear is revolved round the sun around static preceding sun gear before sun wheel rotation rotating speed ensures, and the outside of preceding planetary gear and front ring gear Fit inside rotates；

A2, low speed electric-only mode：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage, regime clutch disengages,

By the motor of Driven by inverter second, ring gear against rotation after the second motor driven, 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, the rear sun gear of rear planet row do not rotate, work( Rate only flows between internal combustion engine and the first motor；The pattern is divided into following pattern：

B1,0100 pattern：

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

B4,0111 pattern：

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

B5,0011 pattern：

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

C, internal combustion engine drive pattern：

Internal combustion engine start, the first motor do 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：

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

Before power is output to by internal combustion engine on sun gear, preceding sun gear drives front ring gear to rotate by preceding planetary gear, front ring gear band Dynamic rear sun gear rotation, planet carrier and the rotation of rear planetary gear, rear planet carrier export power by system after rear sun gear drives Axle exports；

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

Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement；

Before power is output to by internal combustion engine on sun gear, preceding sun gear drives front ring gear to rotate by preceding planetary gear, front ring gear band Dynamic 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 planet Frame exports power 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 divided into following 5 kinds of patterns to the first motor in generating or electronic or off position, the pattern as needed：

D1, serial mixed power pattern：

Preceding lock-up clutch disengagement, middle lock-up clutch locking, rear lock-up clutch disengage and regime clutch disengages；

Power is inputted by internal combustion engine by preceding sun gear, passes to preceding planet carrier, and preceding planet carrier drives the first electric power generation；Second Motor is by Driven by inverter, gear ring input power backward, and power passes to rear planetary gear and rear planet carrier, and rear planet carrier is by power Exported through system output shaft；

D2, the input of the motor of internal combustion engine+the second is in parallel and the second motor speed couples hybrid mode：

Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages；

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun 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, planet row input energy, rear planet row pass through the power of the second motor and front ring gear to gear ring backward after the second motor passes through The power rotating speed coupling of rear sun gear input, is exported power through system output shaft by rear planet carrier；

D3, the input of the motor of internal combustion engine+the second is in parallel and the second motor torque couples hybrid mode：

Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch engagement；

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun 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, gear ring planet row input energy backward after the second motor passes through, rear planet row is by the second motor Power coupled with the power torque that front ring gear inputs through rear sun gear, power is exported through system output shaft by rear planet carrier；

D4, the input of the motor of the motor of internal combustion engine+the second+the first is in parallel and the second motor speed couples hybrid mode：

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch disengages；

Power is inputted by internal combustion engine by preceding sun gear, and the preceding premenstrual planetary gear of sun 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 planet carrier and preceding planetary 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, gear ring planet row backward after the second motor passes through Input energy, rear planet row couples the power of the second motor with the power rotating speed that front ring gear inputs through rear sun gear, by rear row Carrier exports power through system output shaft；

D5, 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 mode：

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement；Power Inputted by internal combustion engine by preceding sun gear, the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, and front ring gear transfers power to 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 rotates, the One motor passes through preceding planet carrier and preceding planetary 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；Meanwhile the motor of Driven by inverter second rotates, gear ring planet backward after the second motor passes through Input energy is arranged, rear planet row couples the power of the second motor with the power torque that front ring gear inputs through rear sun gear, by rear Planet carrier 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 disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch disengage；Power Inputted by internal combustion engine by preceding sun gear, preceding sun gear drives front ring gear and the rotation of preceding planet carrier, and preceding planet carrier is by preceding planetary gear Drive and partial power is passed into the first motor, the first motor is before preceding planet row absorption energy, the power process of preceding planet row Gear ring exports backward, drives rear sun gear, planetary gear rotation+revolution after rear sun gear drive, and then planet carrier revolves round the sun after drive, By the dynamic retarding of front ring gear input, torque is risen, 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 disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement；Power Inputted by internal combustion engine by preceding sun gear, preceding sun gear drives front ring gear and the rotation of preceding planet carrier, and preceding planet carrier is by preceding planetary gear Drive and partial power is passed into the first motor, the first motor is before preceding planet row absorption energy, the power process of preceding planet row Gear ring exports backward, drives rear sun gear, the overall rotating speed of planet row is public after planetary gear, rear planet carrier after rear sun gear drive Turn, 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 disengage, rear lock-up clutch disengages and regime clutch disengages；Power Inputted by internal combustion engine by preceding sun gear, the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, and the power of preceding planet row passes through Front ring gear exports backward, drives rear sun gear, and planetary gear, rear planet carrier, the rotation of rear gear ring after rear sun gear drive, 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 disengage, rear lock-up clutch disengages and regime clutch engagement；Power Inputted by internal combustion engine by preceding sun gear, the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, and the power of preceding planet row passes through Front ring gear exports drive rear sun gear backward, and the later planet row of planetary gear, rear planet carrier, rear gear ring is whole after rear sun gear drives Body rotating speed is revolved round the sun, and partial power is passed to the second motor by rear gear ring, and the second motor absorbs energy, rear planet row from rear planet row 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, which provides, to be moved Power driving vehicle traveling, the pattern are 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 disengage and regime clutch disengages；By The electric braking force of two motors input passes sequentially through rear gear ring, rear planetary gear, rear planet carrier, system output shaft output, realizes braking Energy recovery function；

F2, high speed Brake energy recovery pattern：

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement, by the The electric braking force of two motors input passes sequentially through rear gear ring, regime clutch, rear planet carrier, 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 disengages, middle lock-up clutch disengages, rear lock-up clutch locking and regime clutch disengage；Power Inputted by internal combustion engine by preceding sun gear, the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, the motor of Driven by inverter first Rotation, by preceding planet carrier and preceding planetary gear, planet row input energy, preceding planet row move the first motor by the first motor forward Power couples with the power rotating speed that preceding planet carrier inputs；The power of preceding planet row exports backward by front ring gear, drives rear sun gear, Planetary gear, the revolution of rear planet carrier, rear planet row give system output shaft by rear planet carrier power output after rear sun gear drives；

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

Preceding lock-up clutch disengages, middle lock-up clutch disengages, rear lock-up clutch disengages and regime clutch engagement；Power Inputted by internal combustion engine by preceding sun gear, the preceding premenstrual planetary gear of sun gear drives front ring gear rotation, the motor of Driven by inverter first Rotation, by preceding planet carrier and preceding planetary gear, planet row input energy, preceding planet row move the first motor by the first motor forward Power couples with the power rotating speed that preceding planet carrier inputs；The power of preceding planet row exports backward by front ring gear, drives rear sun gear, The overall rotating speed of planet row revolves round the sun after planetary gear, rear planet carrier, rear gear ring after rear sun gear drives, and rear planet row passes through rear row Carrier gives system output shaft power output；

H3, standby parking charge mode：

Preceding lock-up clutch locking, middle lock-up clutch disengage, rear lock-up clutch disengages and regime clutch disengages；Power Before being input to by internal combustion engine on sun gear, preceding sun gear drives front ring gear to rotate by preceding planetary gear, 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.

4. the driving method of hybrid power system according to claim 3, it is characterised in that the b1,0100 pattern and The b5,0011 pattern backup each other.

5. the driving method of hybrid power system according to claim 3, it is characterised in that under e1 patterns, work as vehicle In accelerator, first improve the first motor in the rotating speed accelerator corresponding to the rotating speed to high speed of internal combustion engine and still absorb Power, charged to electrical source of power, and rotating speed is constantly reduced in charging process, the power that the first motor absorbs gradually drops Low, being delivered to the power of rear planet row and rotating speed by front ring gear gradually increases, the power output of planet row and output after increase Rotating speed.

6. the driving method of hybrid power system according to claim 3, it is characterised in that under e2 patterns, work as vehicle In down speeding procedure, internal combustion engine is kept original rotating speed, while the first motor still absorbed power, charged to electrical source of power, And constantly increase rotating speed in charging process, the power that the first motor absorbs gradually increases, after being delivered to by front ring gear The power and rotating speed of planet row gradually reduce, and the power output of planet row and output speed are reduced to the mould of low speed operation after increase Formula.

7. the driving method of hybrid power system according to claim 3, it is characterised in that under e3 patterns, work as vehicle In accelerator, the rotating speed corresponding to the rotating speed to high speed of internal combustion engine, while the second motor still absorbed power are first improved And charged to electrical source of power, and rotating speed is constantly reduced in charging process, the power that the second motor absorbs gradually reduces, and leads to Later planet carrier is delivered to the power of system output shaft and rotating speed and gradually increased.

8. the driving method of hybrid power system according to claim 3, it is characterised in that under e4 patterns, in vehicle When reduction of speed, the second electric power generation, and charged by inverter to electrical source of power, the second motor gradually increases turning for absorption Square, and the torque that rear planet row is inputed to by preceding planet carrier is constant, the output torque of rear planet row declines, and driving vehicle advances Moment of torsion decline, the deceleration of vehicle gradually increases.