CN106476602B - Power drive system and vehicle with it - Google Patents

Abstract

The invention discloses a kind of power drive system and with its vehicle, the power drive system includes engine, along axial direction successively the second planetary gear mechanism far from engine of power input shaft, second motor generator, first planetary gear mechanism and the first motor generator and power output portion, wherein the sun gear of first planetary gear mechanism and the first motor generator rotate synchronously, the planet carrier of first planetary gear mechanism is rigidly connected with power input shaft and and the planet carrier of its gear ring and second planetary gear mechanism synchronous with the rotor alternative of the first motor generator is rigidly connected and optionally synchronous with the rotor of the second motor generator, the rigid connection of the rotor of the sun gear of second planetary gear mechanism and the second motor generator and its gear ring and power output portion link with output power.Power drive system according to an embodiment of the present invention, can under each operating condition fuel economy it is good.

Description

Power drive system and vehicle with it

Technical field

The present invention relates to system of vehicle transmission technical fields, in particular to a kind of power drive system and have the power The vehicle of transmission system.

Background technique

In the related technology, in the power drive system of hybrid vehicle, system whole efficiency is to be improved, can not achieve Splendid fuel economy can be reached under different operating modes, for example, under operating condition of connecting, system be only applicable to low speed or To obtain higher transmission efficiency, and under high-speed working condition, engine power needs to supplement electricity for system and needs middle speed operation Experience conversion twice is output to wheel, and loss is big；Under series-parallel hybrid mode, to guarantee the high efficiency under the mode then It will cause trend of the motor generator to enlargement development, while in this mode, when high-speed working condition, there are high-power electricity circulations The shortcomings that, to cause to decline to vehicle fuel economy under the operating condition.For structure, each operating mode switching control mode Complexity, and being limited by integral arrangement space, two semiaxis Length discrepancies of transmission shaft, easy sideslip and influences the handling of vehicle, There are rooms for improvement.

Summary of the invention

The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention One purpose is to propose that one kind can realize splendid fuel economy and handling good powertrain under various operating conditions System.

Second object of the present invention is to propose a kind of vehicle with above-mentioned power drive system.

The power drive system of embodiment includes: engine according to a first aspect of the present invention；Power input shaft, the power Input shaft is connected with the crankshaft of the engine；First motor generator；Second motor generator；First planetary gear mechanism, The first planetary gear mechanism includes three the first actuated elements, and first rigidity in three first actuated elements connects It connects on the rotor of first motor generator, second in three first actuated elements is rigidly attached to described dynamic On power input shaft, described first in three first actuated elements with described in three first actuated elements Two optionally rotate synchronously, and described second in three first actuated elements is the first planetary gear One in the sun gear and planet carrier of mechanism；Second planetary gear mechanism, second planetary gear mechanism include three the Two actuated elements, first in three second actuated elements with the third rigidity in three first actuated elements It connects, second in three second actuated elements is rigidly attached on the rotor of second motor generator；Power Output section, the power output portion and the third in three second actuated elements link with by the engine, described The power output of at least one of first motor generator and second motor generator, wherein first actuated element It is one in the accordingly sun gear of planetary gear mechanism, planet carrier and gear ring with second actuated element；Described second Planetary gear mechanism, second motor generator, the first planetary gear mechanism and first motor generator and institute The distance for stating engine successively increases, and the power output portion is connected with the third in three second actuated elements Part is between the engine and second planetary gear mechanism.

Power drive system according to an embodiment of the present invention has multiple-working mode, and different in each mode adaptive Operating condition can guarantee splendid fuel economy under each operating condition, simple and compact for structure, and keep the jackshaft length of differential mechanism most Amount is consistent, avoids vehicle from deviation phenomenon occur, promotes the handling of vehicle.

The vehicle of embodiment includes power drive system described in first aspect according to a second aspect of the present invention, to have The advantages that arrangement is compact, and fuel economy is high.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of power drive system according to first embodiment of the invention；

Fig. 2 is passed the second arrangement of clutch and third arrangement of clutch from the power that clutch becomes synchronizer on the basis of Fig. 1 A kind of embodiment of dynamic system；

Fig. 3 is a kind of embodiment that the power drive system of the first arrangement of clutch is increased on the basis of Fig. 1；

Fig. 4 is a kind of embodiment that the power drive system of the first arrangement of clutch is increased on the basis of Fig. 2；

Fig. 5 is that one kind of the power drive system of another embodiment in power output portion is shown on the basis of Fig. 1 Embodiment；

Fig. 6 is that one kind of the power drive system of another embodiment in power output portion is shown on the basis of Fig. 2 Embodiment；

Fig. 7 is that one kind of the power drive system of another embodiment in power output portion is shown on the basis of Fig. 3 Embodiment；

Fig. 8 is that one kind of the power drive system of another embodiment in power output portion is shown on the basis of Fig. 4 Embodiment；

Fig. 9 is the structural schematic diagram of the power drive system of second embodiment according to the present invention；

Figure 10 is the structural schematic diagram of the power drive system of third embodiment according to the present invention；

Figure 11 is the structural schematic diagram of the power drive system of the 4th embodiment according to the present invention；

Figure 12 is the structural schematic diagram of the power drive system of the 5th embodiment according to the present invention；

Figure 13 is the structural schematic diagram of power drive system according to the sixth embodiment of the present；

Figure 14 is the structural schematic diagram of the power drive system of the 7th embodiment according to the present invention.

Appended drawing reference:

Power drive system 1000,

Differential mechanism 100,

Engine 200,

Power input shaft 1,

First motor generator MG1, the first motor generator MG1 rotor R 1,

Second motor generator MG2, the second motor generator MG2 rotor R 2,

First arrangement of clutch C1,

Second clutch C2, the first active part 2, the first secondary part 3,

First input shaft 4,

First planetary gear mechanism P1, the sun gear 5 of first planetary gear mechanism P1, first planetary gear mechanism P1 row Star-wheel 6, the planet carrier 7 of first planetary gear mechanism P1, first planetary gear mechanism P1 gear ring 8,

Third clutch C3, the second active part 9, the second secondary part 10,

Second input shaft 11, third input shaft 12,

Second planetary gear mechanism P2, the sun gear 13 of the second planetary gear mechanism P2, the second planetary gear mechanism P2 Planetary gear 14, the planet carrier 15 of the second planetary gear mechanism P2, the second planetary gear mechanism P2 gear ring 16,

Power output portion 300, the first driving gear 17, the first driven gear 18, jackshaft 19, second level driving gear 20, Differential mechanism driven gear 21,

First synchronizer S1, the second synchronizer S2.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.

Power drive system 1000 according to an embodiment of the present invention is described below with reference to Fig. 1-Figure 14.Implement according to the present invention The power drive system 1000 of example includes engine 200, power input shaft 1, the first motor generator MG1, the second dynamoelectric and power generation Machine MG2, first planetary gear mechanism P1, the second planetary gear mechanism P2 and power output portion 300.

First planetary gear mechanism P1 includes three the first actuated elements, i.e. sun gear 5, planet carrier 7 and gear ring 8.Three First in first actuated element be rigidly attached in the rotor R 1 of the first motor generator MG1 with the first motor generator It the rotor coaxial of MG1 and can rotate synchronously.

Second in three the first actuated elements is rigidly attached on power input shaft 1 with coaxial with power input shaft 1 And it can be rotated synchronously around power input shaft 1.

First in three the first actuated elements is optionally synchronous with second in three the first actuated elements Rotation, i.e. first the first actuated element can be rotated synchronously with second the first actuated element, can also independently be rotated, and Second in three the first actuated elements is one in the sun gear 5 and planet carrier 7 of first planetary gear mechanism P1.

Second planetary gear mechanism P2 includes three the second actuated elements, i.e. sun gear 13, planet carrier 15 and gear ring 16.Three First in a second actuated element is rigidly connected with the third in three the first actuated elements, i.e., first second transmission Element can be coaxial with the first actuated element of third and be rotated synchronously.

Second in three the second actuated elements is rigidly attached in the rotor R 2 of the second motor generator MG2, with The rotor R 2 of second motor generator MG2 is coaxial and can rotate synchronously.

Third linkage in power output portion 300 and three the second actuated elements is with by engine 200, the first electronic hair The power output of at least one of motor MG1 and the second motor generator MG2.

Second planetary gear mechanism P2, the second motor generator MG2, first planetary gear mechanism P1 and the first dynamoelectric and power generation Machine MG1 is successively increased at a distance from engine 200, power output portion 300 with the third phase in three the second actuated elements Part even is located between engine 200 and the second planetary gear mechanism P2.

Below using first the first actuated element as the sun gear 5 of first planetary gear mechanism P1, second first transmission Element is the planet carrier 7 of first planetary gear mechanism P1, the tooth that the first actuated element of third is first planetary gear mechanism P1 Circle 8；

The planet carrier 15 that first the second actuated element is the second planetary gear mechanism P2, second the second actuated element are The sun gear 13 of second planetary gear mechanism P2, the gear ring 16 that the second actuated element of third is the second planetary gear mechanism P2 are Example is described in detail.

As Figure 1-Figure 8, power drive system 1000 according to an embodiment of the present invention is defeated including engine 200, power Enter axis 1, the first motor generator MG1, the second motor generator MG2, first planetary gear mechanism P1, the second planetary gear mechanism P2 and power output portion 300.

As Figure 1-Figure 8, the crankshaft of engine 200 is connected with by the power output of engine 200 with power input shaft 1 To power input shaft 1, crankshaft and power input shaft 1 are coaxially disposed.

First motor generator MG1 and the second motor generator MG2, which can be used as motor use, also can be used as generator It uses, and different working modes the first motor generator MG1 and the second dynamoelectric and power generation according to locating for power drive system 1000 Machine MG2 can be converted between motor and generator.Specifically, the first motor generator MG1 and the second motor generator MG2 can be converted between driving condition and generating state.

As Figure 1-Figure 8, the rotor R 1 of the first motor generator MG1 is optionally synchronous with power input shaft 1 turns It is dynamic, that is to say, that the rotation axis of the rotation axis and power input shaft 1 of the rotor R 1 of the first motor generator MG1 is coaxial, the The rotor R 1 of one motor generator MG1 can rotate synchronously together with same axis with power input shaft 1, can also be respectively around this Axis rotation.

Optionally, power input shaft 1 passes through the second arrangement of clutch optionally rotor with the first motor generator MG1 R1 is rotated synchronously.As shown in Fig. 1, Fig. 3, Fig. 5, Fig. 7, the second arrangement of clutch can be clutch, i.e. second clutch C2；Such as figure 2, shown in Fig. 4, Fig. 6, Fig. 8, the second arrangement of clutch can be synchronizer, i.e. the first synchronizer S1.

Each of first planetary gear mechanism P1 and the second planetary gear mechanism P2 include sun gear, planetary gear, Planet carrier and gear ring, planetary gear are rotatably arranged on planet carrier, and planetary gear and gear ring internal messing and with sun gear external toothing. For example, first planetary gear mechanism P1 includes sun gear 5, planetary gear 6, planet carrier 7 and gear ring 8, the second planetary gear mechanism P2 Including sun gear 13, planetary gear 14, planet carrier 15 and gear ring 16.

As Figure 1-Figure 8, the sun gear 5 of first planetary gear mechanism P1 is rigidly attached to the first motor generator MG1 Rotor R 1 on with the rotor R 1 of the first motor generator MG1 is synchronous together rotates around rotation axis, i.e. first planetary gear The rotor R 1 of the sun gear 5 of mechanism P1 and the first motor generator MG1 are coaxially disposed and can rotate synchronously.

It, can be with it is understood that " rigid connection of two components " refers to that two components are fixed together in following description It moves together.

The planet carrier 7 of first planetary gear mechanism P1 be rigidly attached on power input shaft 1 with power input shaft 1 together Synchronous to rotate around power input shaft 1, i.e. first planetary gear mechanism P1 is also coaxially disposed with power input shaft 1.

The gear ring 8 of first planetary gear mechanism P1 is optionally synchronous with the rotor R 2 of the second motor generator MG2 to be turned It is dynamic, that is to say, that the rotor R 2 of the rotation axis of the gear ring 8 of first planetary gear mechanism P1 and the second motor generator MG2 Rotation axis is coaxial, and the rotor R 2 of the gear ring 8 of first planetary gear mechanism P1 and the second motor generator MG2 can be around same axis Line rotates synchronously together, can also respectively rotate around the axis.

Optionally, the gear ring 8 of first planetary gear mechanism P1 is optionally electronic with second by third arrangement of clutch The rotor R 2 of generator MG2 rotates synchronously.As shown in Fig. 1, Fig. 3, Fig. 5, Fig. 7, third arrangement of clutch can be clutch, i.e., the Three clutch C3；As shown in Fig. 2, Fig. 4, Fig. 6, Fig. 8, third arrangement of clutch can be synchronizer, i.e. the second synchronizer S2.

The planet carrier 15 of second planetary gear mechanism P2 and the gear ring 8 of first planetary gear mechanism P1 are rigidly connected, and second The gear ring 8 of the planet carrier 15 of planetary gear mechanism P2 and first planetary gear mechanism P1 are coaxially disposed and can rotate synchronously, and the The planet carrier 15 of two planetary gear mechanism P2 is also optionally rotated synchronously with the rotor R 2 of the second motor generator MG2.

The sun gear 13 of second planetary gear mechanism P2 be rigidly attached in the rotor R 2 of the second motor generator MG2 with The rotor R 2 of second motor generator MG2 synchronizes rotate around rotation axis together, i.e. the sun gear of the second planetary gear mechanism P2 13 with the coaxial arrangement of the rotor R 2 of the second motor generator MG2 and can rotate synchronously.

The linkage of the gear ring 16 of power output portion 300 and the second planetary gear mechanism P2 is with by engine 200, the first electronic hair The power output of at least one of motor MG1 and the second motor generator MG2, i.e. power output portion 300 by with the second planet Gear mechanism P2 gear ring 16 linkage with the power of engine 200 individually export or by the first motor generator MG1 moving Power is individually exported or is individually exported the power of the second motor generator MG2 or by engine 200 and the first electronic hair Power output after motor MG1 coupling or the power output after coupling engine 200 with the second motor generator MG2 or Person will export after the power coupling of engine 200, the first motor generator MG1 and the second motor generator MG2 three or will Exported after the power coupling of both first motor generator MG1 and the second motor generator MG2, for example, by differential mechanism export to Wheel.

Wherein, two components " linkage " refer to that the movement between two components is relevant, and a component movement drives another A component movement or both can move synchronously.

Optionally, power output portion 300 can be single reduction gear unit structure, two reduction gear or infinite speed reduction mechanism.Example Such as, in Fig. 1-some embodiments shown in Fig. 4, power output portion 300 is two reduction gear, specifically the two reduction gear For second gear reduction unit structure.

In of the invention other optionally embodiment, as shown in Figure 5-Figure 8, power output portion 300 is single-stage speed reducing Mechanism, specifically the single-stage speed reducing mechanism is chain-drive mechanism or tape handler.When power output portion 300 is chain-drive mechanism Or driven sprocket and driven pulley can be located on differential mechanism 100 when tape handler.Optionally, single-stage speed reducing mechanism can also be with For single gear reductions mechanism, infinite speed reduction mechanism can be metal band type stepless speed reducer.

The concrete form in power output portion 300 can be depending on the specific requirements of power drive system 1000, to make The scope of application of power drive system 100 is wider.

As Figure 1-Figure 8, the second planetary gear mechanism P2, the second motor generator MG2, first planetary gear mechanism P1, the first motor generator MG1 are successively increased at a distance from engine 200.

Such arragement construction extends power input shaft 1 particularly in 200 horizontal arrangement of engine, power input One end of axis 1 is connected with the crankshaft of engine 200, one end of the separate crankshaft of power input shaft 1 and first planetary gear mechanism P1 is connected, and has ensured as far as possible that differential mechanism 100, laterally to turning on center line, avoids jackshaft length not close to vehicle Consistent phenomenon, avoids vehicle from deviation phenomenon occur, promotes the handling of vehicle.

Optionally, it can be set between one end of the separate crankshaft of power input shaft 1 and first planetary gear mechanism P1 Reverse plate, damper or flywheel.

More specifically, as Figure 1-Figure 8, the gear ring 16 with the second planetary gear mechanism P2 in power output portion 300 Connected part (such as the first driving gear 17 in Fig. 1-Fig. 4 or driving wheel in figure 5-8) is in power input shaft 1 It is located axially between engine 200 and the second planetary gear mechanism P2, has thereby further ensured that differential mechanism 100 close to whole Vehicle is laterally to turning on center line.Further, the second level driving gear 20 engaged with differential mechanism driven gear 21 is located remotely from hair The side of motivation 200, to further ensure that differential mechanism 100 close to vehicle laterally to turning on center line.

A specific embodiment of power drive system 1000 according to the present invention is described in detail referring to Fig. 1.Such as Shown in Fig. 1, power drive system 1000 includes engine 200, power input shaft 1, the first motor generator MG1, second electronic Generator MG2, first planetary gear mechanism P1, the second planetary gear mechanism P2, power output portion 300, the second arrangement of clutch and Third arrangement of clutch.

The crankshaft of engine 200, power input shaft 1, the rotor R 1 of the first motor generator MG1, the second motor generator Rotor R 2, first planetary gear mechanism P1 and the second planetary gear mechanism P2 coaxial arrangement of MG2.

The crankshaft of engine 200 is connected with power input shaft 1, the rotor R 1 of the first motor generator MG1 by second from It attaches together to set and optionally be rotated synchronously with power input shaft 1, the sun gear 5 of first planetary gear mechanism P1 is rigidly attached to the In the rotor R 1 of one motor generator MG1, the planet carrier 7 of first planetary gear mechanism P1 is rigidly attached on power input shaft 1, The rigid connection of the planet carrier 15 of the gear ring 8 of first planetary gear mechanism P1 and the second planetary gear mechanism P2, the second planetary gear The sun gear 13 of mechanism P2 is rigidly attached to the rotor R 2 of the second motor generator MG2, the gear ring of the second planetary gear mechanism P2 16 link with power output portion 300, and the planet carrier of the gear ring 8 of first planetary gear mechanism P1 and the second planetary gear mechanism P2 15 are optionally rotated synchronously by third arrangement of clutch and the rotor R 2 of the second motor generator MG2.

As shown in Figure 1, the second arrangement of clutch includes the first active part 2 and the first secondary part 3, the first active part 2 It is optionally rotated synchronously with the first secondary part 3, power input shaft 1 and the first active part 2 are rigidly connected, and first is electronic The rotor R 1 of generator MG1 passes through first input shaft 4 and first secondary part 3 of the empty set on power input shaft 1 and is rigidly connected, To make power input shaft 1 and the rotor R 1 of the first motor generator MG1 optionally rotate synchronously.

Further, the sun gear 5 of first planetary gear mechanism P1 is rigidly attached on the first input shaft 4, that is to say, that The sun gear 5 of first planetary gear mechanism P1 is rigidly attached to the rotor R 1 of the first motor generator MG1 by the first input shaft 4 On.

In other words, as shown in Figure 1, the first input shaft 4 is hollow shaft and empty set is on power input shaft 1, the first electronic hair The rotor R 1 of motor MG1 is hollow structure and passes through 4 empty set of the first input shaft on power input shaft 1, rigid on the first input shaft 4 Property is connected with the rotor R 1 of the first motor generator MG1, the sun gear 5 and the first secondary part of first planetary gear mechanism P1 3。

Specifically, the second arrangement of clutch, which has, engages and disconnects two kinds of working conditions, when the engagement of the second arrangement of clutch, First active part 2 is engaged and is rotated synchronously with the first secondary part 3, to make power input shaft 1 and the first motor generator The rotor R 1 of MG1 rotates synchronously；When second arrangement of clutch disconnects, the first active part 2 is separated with the first secondary part 3, thus Separate power input shaft 1 and the rotor R 1 of the first motor generator MG1, respective self-movement.

As shown in Figure 1, third arrangement of clutch includes the second active part 9 and the second secondary part 10, the second active part 9 It is optionally rotated synchronously with the second secondary part 10, the gear ring 8 of first planetary gear mechanism P1 and the second active part 9 are just Property connection, the rotor R 2 of the second motor generator MG2 by second input shaft 11 of the empty set on power input shaft 1 and second from Dynamic part 10 is rigidly connected, to make the gear ring 8 of first planetary gear mechanism P1 and the rotor R 2 of the second motor generator MG2 can It selectively rotates synchronously, due to the gear ring 8 of first planetary gear mechanism P1 and the planet carrier 15 of the second planetary gear mechanism P2 Rigid connection, thus it is also that the planet carrier 15 of the second planetary gear mechanism P2 and the rotor R 2 of the second motor generator MG2 is optional Rotate synchronously to selecting property.

Further, the sun gear 13 of the second planetary gear mechanism P2 is rigidly attached on the second input shaft 11, that is, It says, the sun gear 13 of the second planetary gear mechanism P2 is rigidly attached to the second motor generator MG2's by the second input shaft 11 In rotor R 2.

In other words, as shown in Figure 1, the second input shaft 11 is hollow shaft and empty set is on power input shaft 1, the second electronic hair The rotor R 2 of motor MG2 is hollow structure and passes through 11 empty set of the second input shaft on power input shaft 1, on the second input shaft 11 Rigid connection has the rotor R 2 of the second motor generator MG2, the sun gear 13 and second of the second planetary gear mechanism P2 driven Part 10.

Specifically, third arrangement of clutch, which has, engages and disconnects two kinds of working conditions, when the engagement of third arrangement of clutch, Second active part 9 is engaged and is rotated synchronously with the second secondary part 10, thus make the gear ring 8 of first planetary gear mechanism P1 with And second planetary gear mechanism P2 planet carrier 15 and the second motor generator MG2 rotor R 2 rotate synchronously；Third clutch dress When setting disconnection, the second active part 9 is separated with the second secondary part 10, thus make the gear ring 8 of first planetary gear mechanism P1 with And second the planet carrier 15 of planetary gear mechanism P2 separated with the rotor R 2 of the second motor generator MG2, respective self-movement.

It is understood that respective self-movement includes stationary state in foregoing description, empty set indicates empty set on axis Component can be movable relatively with axis, i.e., component can rotate around the axis rather than rotate synchronously together with axis.

Further, as shown in Figure 1, the planet carrier 15 of the second planetary gear mechanism P2 passes through empty set in power input shaft 1 On third input shaft 12 and the gear ring 8 of first planetary gear mechanism P1 be rigidly connected, 11 empty set of the second input shaft is defeated in third Enter on axis 12.

That is, third input shaft 12 is hollow shaft, and the second input shaft 11, third input shaft 12 and power input shaft 1 is successively nested, and rigid connection has the gear ring 8 and the second planetary gear mechanism of first planetary gear mechanism P1 on third input shaft 12 The planet carrier 15 of P2.

As shown in Figure 1, power output portion 300 is two reduction gear, which includes intermeshing the One driving gear 17 and the first driven gear 18 and second level driving gear 20,17 empty set of the first driving gear is in power input shaft On 1, and the first driving gear 17 is connected and can be with the second planetary gear mechanism P2 with the gear ring 14 of the second planetary gear mechanism P2 Gear ring 14 rotate synchronously, the first driven gear 18 and second level driving gear 20 coaxial arrangement and can rotate synchronously, i.e., first from Moving gear 18 and second level driving gear 20, which are rigidly attached on jackshaft 19 and are spaced in the axial direction of jackshaft 19, to be arranged, and two Grade driving gear 20 is suitable for engaging with the differential mechanism driven gear 21 of differential mechanism 100, thus the dynamic of the output of portion 300 that output power Power is exported by differential mechanism 100 to the wheel of vehicle.

Referring to the connection relationship of each component of above-mentioned power drive system 1000, detailed description is implemented according to the present invention The different working modes that have of power drive system 1000 of example, for example, the first dynamic branch mode, the second dynamic branch mode, Third dynamic branch mode, electric-only mode, the first pure fuel oil mode and the second pure fuel oil mode, the first power generation in parking mode and Second power generation in parking mode.

When power drive system 1000 is in different working modes, the motion state of each component is as shown in table 1:

Table 1:

Each operating mode of power drive system 1000 according to an embodiment of the present invention is described in detail below with reference to table 1:

1), the first dynamic branch mode, that is, input power shunt mode:

When power drive system 1000 is in the first dynamic branch mode, engine 200 works, the first motor generator MG1 is that generator is in generating state or close mechanical dotted state and the second motor generator MG2 is that motor is in drive Dynamic state, the second arrangement of clutch disconnects and third arrangement of clutch engages.

Specifically, due to the disconnection of the second arrangement of clutch and the engagement of third arrangement of clutch, the first motor generator MG1 and hair The power of motivation 200 is coupled in first planetary gear mechanism P1, and the first motor generator MG1 is responsible for speed regulation, the second dynamoelectric and power generation Machine MG2 is responsible for carrying out tune torsion to the power after first planetary gear mechanism P1 coupling.

Wherein the first motor generator MG1 is responsible for adjusting the speed and refer to: engine 200 drives the first row by power input shaft 1 The planet carrier 7 of star gear mechanism P1 rotates, and the power of engine 200 realizes dynamic branch in first planetary gear mechanism P1, i.e., A part of power drives the first motor generator MG1 power generation to be transmitted to the second dynamoelectric and power generation with electrical power path by sun gear 5 Machine MG2, another part power are mechanically exported from gear ring 8.Due to the sun gear 5 of first planetary gear mechanism P1,7 and of planet carrier Revolving speed is interrelated between gear ring 8, therefore engine 200 can be maintained to the operation of economic speed section, in certain revolving speed model By continuously changing the revolving speed of the first motor generator MG1 in enclosing, so that the output revolving speed of gear ring 8 can be realized with consecutive variations Electric controlling stepless variable speed.Engine speed and speed decouple, and the revolving speed of engine 200 is made to be in fuel-efficient revolving speed always Section, and the first motor generator MG1 electricity can be used for driving the second motor generator MG2, avoid the damage of charge and discharge Consumption.

Second motor generator MG2 is responsible for adjust turning round to the power after first planetary gear mechanism P1 coupling Refer to: due to being to carry out power coupling, the first planet by first planetary gear mechanism P1 in the input power shunt mode Three rotating elements (i.e. sun gear, planet carrier and the gear ring or the first electronic hair being connected with sun gear of gear mechanism P1 The rotor R 1 of motor MG1, the power input shaft 1 being connected with planet carrier and the second motor generator MG2 being connected with gear ring Rotor R 2) although the decoupling of engine 200 revolving speed and speed may be implemented, three rotating element revolving speeds are proportional relationships , torque is also (being expressed as torsion lever) of proportional relationship, therefore power drive system 1000 of the invention passes through first It needs the second motor generator MG2 to carry out benefit after the speed regulation of motor generator MG1 realization engine 200 to turn round and could preferably meet The requirement of the dynamic property of system.

The input power shunt mode suitable for low speed or speed operation, at this time the first motor generator MG1 be in hair States electric or close to mechanical points, not only ensure that engine 200 always works in the higher revolving speed section of efficiency in this way, keep away simultaneously Exempt from the biggish electrical power circulation of system to occur, to ensure that the higher fuel economy of system.

It is to be appreciated that speed may be considered low speed or middle speed operation in 80km/h or less, the operating condition is special It Shi Yongyu not city operating condition.The point that mechanical points are motor generator revolving speed when being zero, power drive system 1000 is not deposited at this time It is recycled in electrical power, when the first motor generator MG1 is in mechanical points, system whole efficiency is best.

Wherein, electrical power circulation refers to: when speed slowly rises to high speed from low speed, the first motor generator MG1 Speed regulation when power generation is insufficient for speed demand, and the first motor generator MG1 must at this time inverted, i.e., is become from generator In other words motor is changed into driving condition by generating state and is just able to satisfy speed demand, at this moment because of the first motor generator MG1 is in driving condition, is distributed proportional reason, the second motor generator MG2 by the torque of first planetary gear mechanism P1 Need to absorb a part of torque, even if the second motor generator MG2 is in generating state, the second motor generator MG2 is sent out at this time Electricity driven for the first motor generator MG1, just produce electrical power circulation in this way, electrical power circulates in the second dynamoelectric and power generation Machine MG2 (electricity gives the first motor generator MG1)-first motor generator MG1 be (the second motor generator MG2's of consumption Electricity) (electricity is electronic to first by-the-second motor generator MG2 of first planetary gear mechanism P1 (coupling with engine 200) Generator MG1) circulation in consume energy always so that system capacity is constantly lost, cause ineffective systems.

2), the second dynamic branch mode, that is, output power shunt mode:

When power drive system 1000 is in the second dynamic branch mode, engine 200 works, the first motor generator MG1 is that generator is in generating state and the second motor generator MG2 is that motor is in driving condition, the second clutch dress It sets engagement and third arrangement of clutch disconnects.

Specifically, the second arrangement of clutch engages, third arrangement of clutch is disconnected, the first motor generator MG1 and engine 200 power is directly coupled in first planetary gear mechanism P1, and the first motor generator MG1, which is responsible for adjusting, to be turned round, and the second electronic hair Motor MG2 is responsible for adjusting the speed the power after first planetary gear mechanism P1 coupling.

Wherein the first motor generator MG1 is responsible for adjusting turning round and refer to: since the second arrangement of clutch engages, first planetary gear machine The sun gear 5 of structure P1 and the planet carrier 7 of first planetary gear mechanism P1 are rigidly connected, former according to the work of planetary gear mechanism Reason, first planetary gear mechanism P1 is as a unitary rotation, so that engine 200 be made directly to drive the first motor generator MG1 It generates electricity to absorb torque.And (such as speed is in 120km/h or more in high speed or high speed operating condition downward driving for vehicle It is high) when, the first motor generator MG1 power generation drives for the second motor generator MG2 to be used, i.e. at the first motor generator MG1 It is that the second motor generator MG2 supplements electricity in generating state, electricity is avoided to need to fill by battery pack as what medium generated Discharge loss.

Wherein the second motor generator MG2 is responsible for adjusting the speed the power after first planetary gear mechanism P1 coupling Refer to, since third arrangement of clutch disconnects, the second motor generator MG2 is that driving condition is motor rather than generator, Thus the sun gear 13 of the second planetary gear mechanism P2 and the planet carrier 15 of the second planetary gear mechanism P2 are and input, and second Brakeless element in planetary gear mechanism P2, according to the working principle of planetary gear mechanism, unpowered output, to realize second The speedy carding process of the gear ring 16 of planetary gear mechanism P2, since the gear ring 16 of the second planetary gear mechanism P2 can join with wheel It is dynamic, thus third actuated element here is wheel, that is to say, that the speed regulation of the second motor generator MG2 is mainly met The speedy carding process of wheel, at this moment due to being the first motor generator of motor generator MG1-second planetary gear machine of MG2-second Structure P2-wheel will not generate big electrical power circulation, therefore be suitable for high-speed working condition.

If not meeting the second planetary gear it is to be appreciated that the second motor generator MG2 is in generating state at this time The Speed allotment relationship of each element of mechanism P2.Thus not only ensure that engine 200 always works in the higher revolving speed area of efficiency Between, at the same under the high-speed working condition but also system be easier work near mechanical points, avoid the biggish electrical power of system Circulation occurs, to ensure that splendid fuel economy.

In addition, output power shunt mode is more suitable for high speed or high speed operating condition, and the reason is as follows that: high-speed working condition is generally not It needs too big torque to export, but needs the torque output under relatively high revolving speed, at this moment if with input power shunt mode With regard to improper, thus need to pass through and first carry out tune torsion, then adjusted the speed.

3) third dynamic branch mode, that is, composite power shunt mode:

When power drive system 1000 is in third dynamic branch mode, engine 200 works, the first motor generator MG1 is motor or generator and the second motor generator MG2 is motor or generator, that is to say, that can occur first The case where motor generator MG1 and the second motor generator MG2 is motor or is simultaneously generator simultaneously, is also possible to first One in motor generator MG1 and the second motor generator MG2 be motor another be generator, the second arrangement of clutch and Third arrangement of clutch disconnects.

Specifically, engine 200 works, the second arrangement of clutch and third arrangement of clutch are disconnected, the first dynamoelectric and power generation Machine MG1 is first coupled in first planetary gear mechanism P1 with the power of engine 200, and the first motor generator MG1 is responsible for tune simultaneously Speed and tune are turned round, and the second motor generator MG2 is responsible in the second planetary gear mechanism P2 to first planetary gear mechanism P1 coupling Power after conjunction carries out speed regulation again and adjusts torsion.

When system charge abundance, optionally make the first motor generator MG1 and the second motor generator MG2 simultaneously In driving condition, to meet the operating conditions such as vehicle special limiting condition, such as high-speed passing.When system charge deficiency needs to mend When charging energy, preferably generated electricity using the first motor generator MG1, the working condition of the second motor generator MG2 driving, thus Avoid the occurrence of big electrical power circulation.

Because the second arrangement of clutch and third arrangement of clutch disconnect, the first motor generator MG1 and first is electronic at this time Generator MG1 realizes the revolving speed coupling of planetary gear mechanism, and system is respectively the first motor generator MG1 there are two mechanical points The point that point or the second motor generator MG2 revolving speed when revolving speed is zero are zero.Each mechanical points, system can be kept away Exempt from circulating power and reaches good fuel economy.But system is not due to having the rotating element that revolving speed is zero by braking member Locking, then need to brake using motor generator, and the motor generator for reaching mechanical points at this time does not have revolving speed but to there is torque, At this moment certain power loss can more or less be generated.At this time system dynamic output can be determined that two electronic by operating condition Generator can be exported or be adjusted the speed, and specifically how select the speed ratio for needing to consider two planetary gear mechanisms and two electricity The power etc. of dynamic generator.Such as: when the low torsion of low speed, it can choose two motors while generating electricity, revolving speed is exported to engine 200 It is adjusted the speed；High speed is high when turning round, can two motor generators driven, not only realize high revolving speed output while being also able to achieve not Wrong torque output；And when the low torsion output of middle low speed, the property of can choose allow a motor generator close to mechanical dotted state and it is another One motor generator power generation operation；In high speed it is high then can be considered when turning round allow a motor generator close to mechanical dotted state and it is another One motor generator drives work.These operating conditions specifically still need the speed by motor generator revolving speed, planetary gear mechanism It is determined than, torque relationship and rotation speed relation.

For to sum up, above-mentioned three kinds of dynamic branch modes are suitable for different operating conditions, can in power drive system 1000 Neatly to be switched by the working condition for changing the second arrangement of clutch, third arrangement of clutch and two motor generators, this Ensure that the fuel economy of entire power drive system 1000 reaches best.

Specifically, general power drive system only has one or both of above-mentioned three kinds of operating modes, and each Switching control is complicated between mode, and each mode all has its not applicable operating condition and the fuel economy in the case where this is not suitable for operating condition Difference, and power drive system according to an embodiment of the present invention 1000, by input power shunt mode, output power shunt mode and Composite power shunt mode Three models combine, wherein input power shunt mode suitable for low speed or it is low Fast operating condition, output power shunt mode are suitable for high speed or high speed operating condition, and composite power shunt mode overcomes input and moves The deficiency of power shunt mode and output power shunt mode can satisfy the special operation conditions such as high-speed passing, and by changing second The state of arrangement of clutch, the engagement of third arrangement of clutch and disconnection realizes power drive system 1000 in input power divergent die Formula, output power shunt mode and the switching of composite power shunt mode, structure is simple and control is easy, it is thus achieved that power passes Dynamic system 1000 can guarantee good fuel economy under each operating condition.

4), electric-only mode

When power drive system 1000 is in electric-only mode, engine 200 does not work, and the first motor generator MG1 is not Work, the second motor generator MG2 are motor, and the second arrangement of clutch disconnects and third arrangement of clutch engages.

Since third arrangement of clutch engages, thus make the sun gear 13 and the second planetary gear of the second planetary gear mechanism P2 The planet carrier 15 of mechanism P2 is bonded to synchronous rotation, while the second input shaft 11 and third input shaft 12 are bonded to synchronous rotation, According to the working principle of planetary gear mechanism, the sun gear 13 of the second planetary gear mechanism P2 and the second planetary gear mechanism P2's 15 common rotation of planet carrier, to drive the rotation of the first driving gear 17, the power of the output of the second motor generator MG2 passes through The gear ring 16 of second planetary gear mechanism P2, the first driving gear 17, the first driven gear 18, second level driving gear 20, differential Device driven gear 21 passes to wheel driving wheel operating.

Since the gear ring 8 of first planetary gear mechanism P1 and the planet carrier 15 of the second planetary gear mechanism P2 are rigidly connected, And second arrangement of clutch disconnect, thus the gear ring 8 of first planetary gear mechanism P1 can be servo-actuated, at this time first planetary gear mechanism P1 Gear ring 8 sun gear 5 of first planetary gear mechanism P1 can be driven to rotate, specifically, due to first planetary gear mechanism P1's Planet carrier 7 and power input shaft 1 are rigidly connected, and can be protected by the internal friction for the cylinder being connected with the crankshaft of engine 200 The crankshaft of card engine 200 not can rotate, i.e., power input shaft 1 not can rotate, therefore the sun of first planetary gear mechanism P1 5 idle running of wheel.Speed under the mode is smaller, is suitable for high speed or high speed traveling.

5), the first pure fuel oil mode

When power drive system 1000 is in the first pure fuel oil mode, engine 200 works, the first motor generator MG1 It does not work with the second motor generator MG2, the second arrangement of clutch and third arrangement of clutch engage.

Specifically, the first motor generator MG1 and the second motor generator MG2 do not work, due to the second arrangement of clutch Engagement, and power input shaft by the planet carrier 7 of the sun gear 5 of first planetary gear mechanism P1 and first planetary gear mechanism P1 1 is bonded to synchronous rotation, and the first input shaft 4 is made to engage synchronous rotation with power input shaft 1, according to the work of planetary gear mechanism Make principle, first planetary gear mechanism P1 is rotated as a whole.

Since third arrangement of clutch engages, thus make the sun gear 13 and the second planetary gear of the second planetary gear mechanism P2 The planet carrier 15 of mechanism P2 is bonded to synchronous rotation, while the second input shaft 11 and third input shaft 12 are bonded to synchronous rotation, And the planet carrier 15 of the gear ring 8 of first planetary gear mechanism P1 and the second planetary gear mechanism P2 are rigidly connected, according to planet tooth The planet carrier 15 of the working principle of wheel mechanism, the sun gear 13 of the second planetary gear mechanism P2 and the second planetary gear mechanism P2 are total With rotation, i.e., the second planetary gear mechanism P2 is rotated as a whole, to drive the rotation of the first driving gear 17, engine The power of 200 outputs passes through first planetary gear mechanism P1, the gear ring 16 of the second planetary gear mechanism P2, the first driving gear 17, the first driven gear 18, second level driving gear 20, differential mechanism driven gear 21 pass to wheel driving wheel operating.

It is to be appreciated that one and only one speed ratio of power that engine 200 exports drives in the first pure fuel oil mode Wheel, i.e., under the first pure fuel oil mode, power drive system 1000 only has a single gear output mode, this mode is not Need to use motor generator, motor generator is only merely idle running, thus the mode be only relatively suitable for engine 200 compared with For economic speed section.

Particularly, under the first pure fuel oil mode, though the power that engine 200 exports by Multi-stage transmission chain conveyer, Two groups of planetary gear mechanisms function only as the transmission for being equivalent to spline at this time, and if arrangement of clutch using dry clutch, Power drive system 1000 still can be obtained under some specific operations than the engine 200 and electricity using motor generator speed regulation Higher fuel economy when dynamic electric generator hybrid power output mode.

Due to the first pure fuel oil mode, the gear pair that transmission chain passes through is few, and transmission efficiency is high, generates electricity without motor generator With the operating condition (80% or so the efficiency that this two parts can lose engine 200) of driving, while do not have battery set charge/discharge Situation, therefore the work of engine 200 fuel economy is good under the specific operation, thus the first pure fuel oil mode has centainly excellent More property.

Wherein specific operation will according under the first pure fuel oil mode, transmission chain from the crankshaft of engine 200 to wheel Speed ratio is determined, and the speed ratio of transmission chain determines speed and the torque section that engine 200 is realized.For example, this speed ratio is similar to If 3 gears of conventional vehicles, then it is just good in this vehicle speed intervals fuel economy for being suitable for 3 gears, that is, it is suitable for this Operating condition.

Certainly, arrangement of clutch can also use wet clutch, but may be made using wet clutch due to that can stir oil At the loss of portion of energy, but this loss will not be too big, is unlikely to influence the fuel-economy under this specific operation Superiority.

6) the second pure fuel oil mode

When power drive system 1000 is in the second pure fuel oil mode, engine 200 works, the first motor generator MG1 It is generator at least one of the second motor generator MG2, the second arrangement of clutch and third arrangement of clutch engage.

Specifically, both the first motor generator MG1 and the second motor generator MG2 one or simultaneously in power generation shape State supplements electricity for system.Engine 200 works, and the second arrangement of clutch and third arrangement of clutch engage, first planetary gear Mechanism P1 is rotated as a whole and the second planetary gear mechanism P2 is rotated as a whole, and 200 power of engine passes through First planetary gear mechanism P1, the second planetary gear mechanism P2, the first driving gear 17, the first driven gear 18, second level are actively Gear 20, differential mechanism driven gear 21 pass to wheel driving wheel operating.

Although it is understood that under the second pure fuel oil mode, the first motor generator MG1 and the second dynamoelectric and power generation At least one of machine MG2 is generator, but the power resources of power drive system 1000 are only engine 200.

7) the first power generation in parking mode, i.e. small-power power generation in parking mode, only the first motor generator MG1 is individually sent out at this time Electricity

When power drive system 1000 is in the first power generation in parking mode, due to parking, i.e. wheel is motionless, the second planet tooth The gear ring 16 for taking turns mechanism P2 is braked, and engine 200 works, and the first motor generator MG1 is generator and the second motor generator MG2 does not work, the engagement of the second arrangement of clutch and the disconnection of third arrangement of clutch.

Specifically, vehicle passes through electronic parking system for wheel lock up, engine 200 works, and the second arrangement of clutch connects It closes, engine 200 directly drives the first motor generator MG1 movement to supplement electricity to generate electricity for system via power input shaft 1.

Since the second arrangement of clutch engages, first planetary gear mechanism P1 is rotated as a whole, i.e. the first planet tooth The gear ring 8 for taking turns mechanism P1 is rotated synchronously with power input shaft 1, although third arrangement of clutch disconnects, due to the second planetary gear The planet carrier 15 of mechanism P2 and the gear ring 8 of first planetary gear mechanism P1 are rigidly connected, and the tooth of the second planetary gear mechanism P2 16 braking of circle, thus cause the second motor generator MG2 servo-actuated.

8) the second power generation in parking mode, i.e., high-power power generation in parking mode, the first motor generator MG1 and second is electric at this time Dynamic generator MG2 generates electricity

When power drive system 1000 is in the second power generation in parking mode, engine 200 works, the second planetary gear mechanism The gear ring 16 of P2 is braked, and the first motor generator MG1 and the second motor generator MG2 are generator, and the second arrangement of clutch connects It closes and third arrangement of clutch disconnects.

Specifically, vehicle passes through electronic parking system for wheel lock up, engine 200 works, and the second arrangement of clutch connects It closes, engine 200 directly drives the first motor generator MG1 movement to supplement electricity to generate electricity for system.

Since the second arrangement of clutch engages, first planetary gear mechanism P1 is rotated as a whole, i.e. the first planet tooth The gear ring 8 for taking turns mechanism P1 is rotated synchronously with power input shaft 1, although third arrangement of clutch disconnects, due to the second planetary gear The planet carrier 15 of mechanism P2 and the gear ring 8 of first planetary gear mechanism P1 are rigidly connected, and the tooth of the second planetary gear mechanism P2 16 braking of circle, thus it is that system supplements energy that the second motor generator MG2, which also drives power generation by engine 200,.

For functionally, the power drive system 1000 is by 200, two motor generators of engine, two planet teeth Mechanism and two arrangement of clutch compositions are taken turns, it is defeated that the single gear of engine 200 both may be implemented by the control to two arrangement of clutch It is exported out with pure electric vehicle, while input power shunt mode, output power can also be neatly realized under hybrid power operating condition The mutual switching of shunt mode and composite power shunt mode.By controlling the second arrangement of clutch, third arrangement of clutch, first The different working condition of motor generator MG1 and the second motor generator MG2, can be under different operating conditions, to ensure vehicle most The operating mode of good fuel economy, comfort or dynamic property demand to select hybrid power system different.

That is, connecting in 200, two motor generators of engine, two planetary gear mechanisms and two arrangement of clutch On the basis of connecing relationship, pass through the second arrangement of clutch, third arrangement of clutch, the first motor generator with different working condition The combination of MG1 and the second motor generator MG2 can at least realize above-mentioned eight kinds of operating modes, and every kind of operating mode is suitable The demand of vehicle optimal fuel economy, comfort or dynamic property is ensured for different operating conditions and in the applicable working condition, thus The structure of power drive system 1000 is simple, vdiverse in function and be applied on vehicle, when so that the vehicle is moved under each operating condition all Can have good fuel economy, comfort and dynamic property.

Particularly, under different operating conditions, matching has the work of the splendid fuel economy of vehicle, comfort or dynamic property demand Operation mode, each pattern switching control thinking is simple, car travel mode diversification, maximally by splendid fuel economy and relaxes Adaptive covers all driving cycles of vehicle.For structure, planetary gear mechanism has both biography as hybrid power coupling unit Efficiency of movement is high, realizes the advantages that ratio coverage is wide and compact-sized.

In short, power drive system 1000 according to an embodiment of the present invention, can choose different according to different operating conditions Operating mode, and fuel economy is high, system effectiveness is high, electrical power circulation is small, while each mode switching structure is simple.

Further, as Figure 1-Figure 8, the second planetary gear mechanism P2, the second motor generator MG2, third clutch Device, first planetary gear mechanism P1, the first motor generator MG1 and the second arrangement of clutch at a distance from engine 200 successively Increase.

Optionally, engine 200 can be horizontal or longitudinal.

Such arragement construction extends power input shaft 1 particularly in 200 horizontal arrangement of engine, power input One end of axis 1 is connected with the crankshaft of engine 200, one end of the separate crankshaft of power input shaft 1 and the second arrangement of clutch and First planetary gear mechanism P1 is connected, and has ensured as far as possible that differential mechanism 100, laterally to turning on center line, is avoided close to vehicle Jackshaft cause phenomenon different in size, avoids vehicle from deviation phenomenon occur, promotes the handling of vehicle.

Optionally, can be set between one end and the second arrangement of clutch of the separate crankshaft of power input shaft 1 reverse plate, Damper or flywheel.

Certainly, when engine 200 is longitudinal, such arragement construction can also make the structure of power drive system 1000 more It is compact, make full use of the axially and radially space of power input shaft 1.

As shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, power drive system 1000 can also include the first arrangement of clutch C1, and first Arrangement of clutch C1 is located between the crankshaft of engine 200 and power input shaft 1, by the way that the first arrangement of clutch C1 is arranged, is being not required to When engine 200 being wanted to work, the crankshaft generation for making engine 200 when the first motor generator MG1 power output is avoided to be servo-actuated Phenomenon avoids unnecessary energy loss, is conducive to the working efficiency for promoting power drive system 1000.Optionally, first from Attaching together and setting C1 is first clutch.

Power drive system 1000 according to an embodiment of the present invention, in the first motor generator MG1, first planetary gear machine Structure P1, the second motor generator MG2, the second planetary gear mechanism P2 and power output portion 300 connection relationship and work On the basis of state, first arrangement of clutch C1 is set between the crankshaft and power input shaft 1 of engine 200, is not only realized A variety of different operating modes, and each operating mode is suitable for different operating conditions, and ensure splendid fuel economy and comfortable Property, and mode switching structure is simple, also when not needing the work of engine 200, avoids the first motor generator MG1 power output When so that the crankshaft of engine 200 is avoided unnecessary energy loss, is conducive to promote power drive system there is a phenomenon where servo-actuated 1000 working efficiency.

Difference in embodiment as shown in Figure 9 with Fig. 1-embodiment shown in fig. 8 is that first first transmission is first Part is the planet carrier 7 of first planetary gear mechanism P1, the sun that second the first actuated element is first planetary gear mechanism P1 Wheel 5, the gear ring 8 that the first actuated element of third is first planetary gear mechanism P1；First the second actuated element is the second row The planet carrier 15 of star gear mechanism P2, the sun gear 13 that second the second actuated element is the second planetary gear mechanism P2, third A second actuated element is the gear ring 16 of the second planetary gear mechanism P2, and those skilled in the art can be according to right in foregoing description The operating mode of the power drive system 1000 of Fig. 1 derives the operating mode of power drive system 1000 shown in Fig. 9, herein No longer narration in detail.

Difference in embodiment as shown in Figure 10 with Fig. 1-embodiment shown in fig. 8 is that first first is driven Element is the sun gear 5 of first planetary gear mechanism P1, the row that second the first actuated element is first planetary gear mechanism P1 Carrier 7, the gear ring 8 that the first actuated element of third is first planetary gear mechanism P1；First the second actuated element is second The sun gear 13 of planetary gear mechanism P2, the planet carrier 15 that second the second actuated element is the second planetary gear mechanism P2, the The gear ring 16 that three the second actuated elements are the second planetary gear mechanism P2, those skilled in the art can be according in foregoing description The operating mode of power drive system 1000 shown in Fig. 10 is derived to the operating mode of the power drive system 1000 of Fig. 1, No longer narration in detail herein.

Difference in embodiment as shown in figure 11 with Fig. 1-embodiment shown in fig. 8 is that first first is driven Element is the planet carrier 7 of first planetary gear mechanism P1, second the first actuated element be first planetary gear mechanism P1 too Sun wheel 5, the gear ring 8 that the first actuated element of third is first planetary gear mechanism P1；First the second actuated element is second The sun gear 13 of planetary gear mechanism P2, the planet carrier 15 that second the second actuated element is the second planetary gear mechanism P2, the The gear ring 16 that three the second actuated elements are the second planetary gear mechanism P2, those skilled in the art can be according in foregoing description The operating mode of power drive system 1000 shown in Figure 11 is derived to the operating mode of the power drive system 1000 of Fig. 1, No longer narration in detail herein.

Difference in embodiment as shown in figure 12 with Fig. 1-embodiment shown in fig. 8 is that first first is driven Element is the gear ring 8 of first planetary gear mechanism P1, the planet that second the first actuated element is first planetary gear mechanism P1 Frame 7, the sun gear 5 that the first actuated element of third is first planetary gear mechanism P1；First the second actuated element is second The planet carrier 15 of planetary gear mechanism P2, the sun gear 13 that second the second actuated element is the second planetary gear mechanism P2, the The gear ring 16 that three the second actuated elements are the second planetary gear mechanism P2, those skilled in the art can be according in foregoing description The operating mode of power drive system 1000 shown in Figure 12 is derived to the operating mode of the power drive system 1000 of Fig. 1, No longer narration in detail herein.

Difference in as shown for example in fig.13 with Fig. 1-embodiment shown in fig. 8 is that first first is driven Element is the sun gear 5 of first planetary gear mechanism P1, the row that second the first actuated element is first planetary gear mechanism P1 Carrier 7, the gear ring 8 that the first actuated element of third is first planetary gear mechanism P1；First the second actuated element is second The planet carrier 15 of planetary gear mechanism P2, the gear ring 16 that second the second actuated element is the second planetary gear mechanism P2, third A second actuated element is the sun gear 13 of the second planetary gear mechanism P2, and those skilled in the art can be according in foregoing description The operating mode of power drive system 1000 shown in Figure 13 is derived to the operating mode of the power drive system 1000 of Fig. 1, No longer narration in detail herein.

Difference in embodiment as shown in figure 14 with Fig. 1-embodiment shown in fig. 8 is that first first is driven Element is the gear ring 8 of first planetary gear mechanism P1, the planet that second the first actuated element is first planetary gear mechanism P1 Frame 7, the sun gear 5 that the first actuated element of third is first planetary gear mechanism P1；First the second actuated element is second The planet carrier 15 of planetary gear mechanism P2, the gear ring 16 that second the second actuated element is the second planetary gear mechanism P2, third A second actuated element is the sun gear 13 of the second planetary gear mechanism P2, and those skilled in the art can be according in foregoing description The operating mode of power drive system 1000 shown in Figure 14 is derived to the operating mode of the power drive system 1000 of Fig. 1, No longer narration in detail herein.

In short, the embodiment multiplicity of power drive system 1000 according to an embodiment of the present invention, can satisfy difference Customer demand.

In conclusion 1000 function of power drive system realizes that abundant, compact-sized, design rationally, while having both needle To the mode switching manner for ensuring splendid fuel economy and comfort under each operating condition, scheme is reliable, and practical value is high.

In addition, power drive system 1000 according to an embodiment of the present invention, in the first motor generator MG1, the first planet Gear mechanism P1, the second motor generator MG2, the second planetary gear mechanism P2 and the connection relationship in power output portion 300 with And on the basis of working condition, the first motor generator MG1, first planetary gear mechanism P1, second electronic is creatively arranged The position of generator MG2, the second planetary gear mechanism P2 and power output portion 300 not only realize a variety of different work Mode, and each operating mode is suitable for different operating conditions, and ensures splendid fuel economy and comfort, and pattern switching knot Structure is simple, also makes the compact overall structure of power drive system 1000, and arrangement space is small, and structure is simple and easy to implement.

In short, power drive system 1000 according to an embodiment of the present invention, operating mode multiplicity and each operating mode is cut It changes simply, especially innovatively by input power shunt mode system, output power shunt mode and composite power shunt mode Organically combine, to cope with various operating conditions, subversiveness the respective advantage of three is combined to realize splendid fuel-economy Property, and the structure simple-arranged realized is compact.

Vehicle according to an embodiment of the present invention is briefly described below, which includes above-mentioned power drive system 1000, To have many advantages, such as that arrangement is compact, fuel economy is high.

In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term " center ", " axial direction " To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as Limitation of the present invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", etc. terms answer It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection, It can be electrical connection or can communicate each other；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field For art personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (15)

1. a kind of power drive system, comprising:

Engine；

Power input shaft, the power input shaft are connected with the crankshaft of the engine；

First motor generator；

Second motor generator；It is characterized by further comprising:

First planetary gear mechanism, the first planetary gear mechanism include three the first actuated elements, three first biographies First in dynamic element is rigidly attached on the rotor of first motor generator, in three first actuated elements Second is rigidly attached on the power input shaft, described first in three first actuated elements with described three Described second in first actuated element optionally rotates synchronously, and described in three first actuated elements Two are one in the sun gear and planet carrier of the first planetary gear mechanism；

Second planetary gear mechanism, second planetary gear mechanism include three the second actuated elements, three second biographies First in dynamic element is rigidly connected with the third in three first actuated elements, three second actuated elements In second be rigidly attached on the rotor of second motor generator；

Power output portion, the power output portion link with the third in three second actuated elements to start described The power output of at least one of machine, first motor generator and second motor generator, wherein described first Actuated element and second actuated element are one in the accordingly sun gear of planetary gear mechanism, planet carrier and gear ring；

Second planetary gear mechanism, second motor generator, the first planetary gear mechanism and first electricity Dynamic generator successively increases at a distance from the engine, the power output portion in three second actuated elements The connected part of third is between the engine and second planetary gear mechanism.

2. power drive system according to claim 1, which is characterized in that first the first actuated element is described first The sun gear of planetary gear mechanism, second the first actuated element are the planet carrier of the first planetary gear mechanism, third First actuated element is the gear ring of the first planetary gear mechanism；

First the second actuated element is the planet carrier of second planetary gear mechanism, and second the second actuated element is described The sun gear of second planetary gear mechanism, the second actuated element of third are the gear ring of second planetary gear mechanism.

3. power drive system according to claim 1, which is characterized in that the crankshaft of the engine and the power are defeated Enter and is equipped with the first arrangement of clutch between axis.

4. power drive system according to claim 2 or 3, which is characterized in that the power input shaft by second from It attaches together to set and optionally be rotated synchronously with the rotor of first motor generator,

The gear ring of the first planetary gear mechanism by third arrangement of clutch optionally with second motor generator Rotor rotate synchronously.

5. power drive system according to claim 4, which is characterized in that the power drive system has the first power Shunt mode, the second dynamic branch mode and third dynamic branch mode；

When the power drive system is in the first dynamic branch mode, the engine operation, first motor generator For generator and second motor generator is motor, and second arrangement of clutch disconnects and the third arrangement of clutch connects It closes；

When the power drive system is in the second dynamic branch mode, the engine operation, first motor generator For generator and second motor generator is motor, and second arrangement of clutch engages and the third arrangement of clutch is disconnected It opens；

When the power drive system is in third dynamic branch mode, the engine operation, first motor generator For motor or generator and second motor generator is motor or generator, second arrangement of clutch and described Three arrangement of clutch disconnect.

6. power drive system according to claim 4, which is characterized in that the power drive system has pure electric vehicle mould Formula；

When the power drive system is in electric-only mode, the engine does not work, first motor generator not work Make, second motor generator is motor, and second arrangement of clutch disconnects and the third arrangement of clutch engages.

7. power drive system according to claim 4, which is characterized in that the power drive system has the first pure combustion Oily mode and the second pure fuel oil mode；

When the power drive system is in the first pure fuel oil mode, the engine operation, first motor generator and Second motor generator does not work, and second arrangement of clutch and the third arrangement of clutch engage；

When the power drive system is in the second pure fuel oil mode, the engine operation, first motor generator and At least one of described second motor generator is generator, and second arrangement of clutch and the third arrangement of clutch connect It closes.

8. power drive system according to claim 4, which is characterized in that the power drive system has the first parking Power generation mode and the second power generation in parking mode；

When the power drive system is in the first power generation in parking mode, the gear ring of second planetary gear mechanism is braked, institute State engine operation, first motor generator is generator and second motor generator does not work, described second from It closes means for engaging and the third arrangement of clutch disconnects；

When the power drive system is in the second power generation in parking mode, the gear ring of second planetary gear mechanism is braked, institute Engine operation is stated, first motor generator and second motor generator are generator, the second clutch dress It sets engagement and the third arrangement of clutch disconnects.

9. power drive system according to claim 4, which is characterized in that second arrangement of clutch and the third from Attach together that set be clutch；Or

Second arrangement of clutch and the third arrangement of clutch are synchronizer.

10. power drive system according to claim 4, which is characterized in that the power output portion is single reduction gear unit Structure, two reduction gear or infinite speed reduction mechanism.

11. power drive system according to claim 10, which is characterized in that the power output portion is 2-level reducer Structure, the two reduction gear include: intermeshing first driving gear and the first driven gear and second level driving gear, The first driving gear empty set is on the power input shaft, and first driving gear and the second planetary gear machine The gear ring of structure is connected and can rotate synchronously with the gear ring of second planetary gear mechanism, first driven gear and described two Grade driving gear is coaxially disposed and can rotate synchronously, and the second level driving gear is suitable for nibbling with the differential mechanism driven gear of differential mechanism It closes.

12. power drive system according to claim 4, which is characterized in that second arrangement of clutch includes first main Dynamic part and the first secondary part, first active part are optionally rotated synchronously with first secondary part；

The power input shaft and first active part are rigidly connected；

The rotor of first motor generator passes through first input shaft of the empty set on the power input shaft and described first Secondary part rigid connection, the sun gear of the first planetary gear mechanism are rigidly attached on first input shaft.

13. power drive system according to claim 4, which is characterized in that the third arrangement of clutch includes second main Dynamic part and the second secondary part, second active part are optionally rotated synchronously with second secondary part；

The gear ring of the first planetary gear mechanism and second active part are rigidly connected；

The rotor of second motor generator passes through second input shaft of the empty set on the power input shaft and described second Secondary part rigid connection, the sun gear of second planetary gear mechanism are rigidly attached on second input shaft.

14. power drive system according to claim 13, which is characterized in that the planet of second planetary gear mechanism Frame is rigidly connected by third input shaft of the empty set on the power input shaft and the gear ring of the first planetary gear mechanism, The second input shaft empty set is on the third input shaft.

15. a kind of vehicle, which is characterized in that including power drive system described according to claim 1 any one of -14.