CN106476599A

CN106476599A - Power drive system and the vehicle with it

Info

Publication number: CN106476599A
Application number: CN201510546260.3A
Authority: CN
Inventors: 翟震; 谷乐知; 徐友彬; 罗永孟; 凌和平
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2015-08-31
Filing date: 2015-08-31
Publication date: 2017-03-08
Anticipated expiration: 2035-08-31
Also published as: CN106476599B

Abstract

The invention discloses a kind of power drive system and the vehicle with it, this power drive system includes electromotor, second planetary gears, second motor generator, first planet gear mechanism and the gear ring brake unit of the first motor generator and power output portion and first planetary gears of braking, the sun gear of first planetary gears is rigidly connected with the first motor generator, the planet carrier of first planetary gears and power input shaft are rigidly connected and can synchronous with the rotor of the first motor generator and its gear ring and second planetary gears planet carrier be rigidly connected and can with the rotor of the second motor generator synchronously, the rotor of the sun gear of second planetary gears and the second motor generator is rigidly connected and its gear ring is linked with power output portion to export power.Power drive system according to embodiments of the present invention, keeps preferably fuel economy under each operating mode.

Description

Power drive system and the vehicle with it

Technical field

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

Background technology

In correlation technique, in the power drive system of motor vehicle driven by mixed power, system whole efficiency to be improved it is impossible to realize not With mode of operation under all can reach splendid fuel economy, for example, series connection operating mode under, system be only applicable to low speed or Middle speed operation is to obtain higher transmission efficiency, and under high-speed working condition, engine power needs to supplement electricity for system and need Wheel is arrived in experience conversion output twice, and loss is big；Under connection in series-parallel hybrid mode, for ensureing the high efficiency under this pattern The trend that motor generator keeps the large-scale development then can be caused, in this mode, during high-speed working condition, there is high-power electricity simultaneously The shortcoming of circulation, thus cause to decline under this operating mode car load fuel economy.For structure, each mode of operation switching control Mode processed is complicated, and is limited by integral arrangement space, two semiaxis Length discrepancy of power transmission shaft, easy sideslip and impact vehicle Handling, there is room for improvement.

Content of the invention

It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this reason, the one of the present invention Purpose is to propose a kind of power drive system that can realize splendid fuel economy under various operating modes.

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 according to a first aspect of the present invention：Electromotor；Power input shaft, described power is defeated The bent axle entering axle with described electromotor is connected；First motor generator；Second motor generator；First planet gear mechanism, Described first planet gear mechanism includes three the first actuated elements, and first rigidity in described three the first actuated elements connects It is connected on the rotor of described first motor generator, second in described three the first actuated elements is rigidly attached to described dynamic On power input shaft, in described three the first actuated elements described first with described three the first actuated elements in described Two optionally described second in synchronous axial system, and described three the first actuated elements be described first planet gear One of the sun gear of mechanism and planet carrier；Second planetary gears, described second planetary gears includes three Two actuated elements, the 3rd rigidity in first in described three the second actuated elements and described three the first actuated elements Connect, second in described three the second actuated elements is rigidly attached on the rotor of described second motor generator；Braking Device, described brake unit is used for braking described 3rd the first actuated element and first the second actuated element；Power output Portion, the 3rd linkage in described power output portion and described three the second actuated elements with by described electromotor, described first The power output of at least one of motor generator and described second motor generator, wherein said first actuated element and institute Stating the second actuated element is accordingly one of the sun gear of planetary gears, planet carrier and gear ring.

Power drive system according to embodiments of the present invention, has multiple-working mode, and in the different operating mode of each mode adaptive, Splendid fuel economy all can be ensured under each operating mode, simple and compact for structure.

The vehicle of embodiment includes the power drive system described in first aspect according to a second aspect of the present invention, thus having car load Characteristics of compact layout, the advantages of fuel economy is high.

Brief description

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

Fig. 2 is the PWTN that the second arrangement of clutch and the 3rd arrangement of clutch are changed on the basis of Fig. 1 lock unit from clutch A kind of embodiment of system；

Fig. 3 is a kind of embodiment of the power drive system of another embodiment showing power output portion on the basis of Fig. 1；

Fig. 4 is a kind of embodiment of the power drive system of another embodiment showing power output portion on the basis of Fig. 2；

Fig. 5 is the structural representation of the power drive system of second embodiment according to the present invention；

Fig. 6 is the structural representation of the power drive system of the 3rd embodiment according to the present invention；

Fig. 7 is the structural representation of the power drive system of the 4th embodiment according to the present invention；

Fig. 8 is the structural representation of the power drive system of the 5th embodiment according to the present invention；

Fig. 9 is the structural representation of power drive system according to the sixth embodiment of the present；

Figure 10 is the structural representation of the power drive system of the 7th embodiment according to the present invention.

Reference：

Power drive system 1000,

Differential mechanism 100,

Electromotor 200,

Power input shaft 1,

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

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

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

First input shaft 4,

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

3rd clutch C3, the second active part 9, the second secondary part 10,

Second input shaft 11, the 3rd input shaft 12,

Second planetary gears P2, the sun gear 13 of the second planetary gears P2, the row of the second planetary gears P2 Star-wheel 14, the planet carrier 15 of the second planetary gears P2, the gear ring 16 of the second planetary gears P2,

Power output portion 300, the first driving gear 17, the first driven gear 18,19, two grades of driving gears 20 of jackshaft, Differential mechanism driven gear 21,

Brake unit B2,

First lock unit S1, the second lock unit S2.

Specific embodiment

Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings.Below with reference to accompanying drawing The embodiment of description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.

Below with reference to Fig. 1-Figure 10, power drive system 1000 according to embodiments of the present invention is described.

Power drive system 1000 according to embodiments of the present invention includes electromotor 200, power input shaft 1, first electronic Motor MG1, the second motor generator MG2, first planet gear mechanism P1, the second planetary gears P2 and power output Portion 300.

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

In three the first actuated elements second is rigidly attached on power input shaft 1 with coaxial with power input shaft 1 and can Around power input shaft 1 synchronous axial system.

In in three the first actuated elements first and three the first actuated elements second optionally synchronous axial system, I.e. first the first actuated element also can independently can be rotated with second the first actuated element synchronous axial system, and three In first actuated element second is one of sun gear 5 and planet carrier 7 of first planet gear mechanism P1.

Second planetary gears P2 includes three the second actuated elements, i.e. sun gear 13, planet carrier 15 and gear ring 16.Three In individual second actuated element first is rigidly connected with the 3rd in three the first actuated elements, i.e. first second transmission Element can coaxial and synchronous axial system with the 3rd the first actuated element.

In three the second actuated elements second is rigidly attached in the rotor R 2 of the second motor generator MG2, with second The rotor R 2 of motor generator MG2 is coaxial and can synchronous axial system.

Brake unit B2 is used for the 3rd the first actuated element of braking and first the second actuated element.

In power output portion 300 and three the second actuated elements the 3rd linkage is with by electromotor 200, the first motor generator The power output of at least one of MG1 and the second motor generator MG2.

Sun gear 5 with first the first actuated element for first planet gear mechanism P1 below, second the first actuated element For the planet carrier 7 of first planet gear mechanism P1, the 3rd the first actuated element is the gear ring 8 of first planet gear mechanism P1；

First the second actuated element is the planet carrier 15 of the second planetary gears P2, and second the second actuated element is second The sun gear 13 of planetary gears P2, the 3rd the second actuated element is that the gear ring 16 of the second planetary gears P2 is Example is described in detail.

As Figure 1-Figure 4, power drive system 1000 according to embodiments of the present invention includes electromotor 200, power input Axle 1, the first motor generator MG1, the second motor generator MG2, first planet gear mechanism P1, the second planetary gear machine Structure P2, brake unit B2 and power output portion 300.

As Figure 1-Figure 4, the bent axle of electromotor 200 is connected with power input shaft 1 with by the power output of electromotor 200 To power input shaft 1, bent axle is coaxially disposed with power input shaft 1.

First motor generator MG1 and the second motor generator MG2 all can use as motor and also can use as electromotor, And different working modes the first motor generator MG1 according to residing for power drive system 1000 and the second motor generator MG2 All can change between motor and electromotor.Specifically, the first motor generator MG1 and the second motor generator MG2 All can change between driving condition and generating state.

As Figure 1-Figure 4, the rotor R 1 of the first motor generator MG1 optionally with power input shaft 1 synchronous axial system, That is, the rotation axiss of rotor R 1 of the first motor generator MG1 are coaxial with the rotation axiss of power input shaft 1, the The rotor R 1 of one motor generator MG1 can together with power input shaft 1 is around same axis synchronous axial system it is also possible to each around This axis rotates.

Alternatively, power input shaft 1 passes through the second arrangement of clutch optionally rotor R 1 with the first motor generator MG1 Synchronous axial system.As shown in figures 1 and 3, the second arrangement of clutch can be clutch, i.e. second clutch C2；As Fig. 2 and Shown in Fig. 4, the second arrangement of clutch can be lock unit, i.e. the first lock unit S1.

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

As Figure 1-Figure 4, the sun gear 5 of first planet gear mechanism P1 is rigidly attached to the first motor generator MG1 Rotor R 1 on rotated around rotation axiss with synchronous together with the rotor R 1 of the first motor generator MG1, i.e. first planet tooth The rotor R 1 of the sun gear 5 of wheel mechanism P1 and the first motor generator MG1 is coaxially disposed and can synchronous axial system.

It is understood that " two parts are rigidly connected " refers to that two parts are fixed together in explained below, Ke Yiyi Play motion.

The planet carrier 7 of first planet gear mechanism P1 is rigidly attached on power input shaft 1 with same together with power input shaft 1 Step rotates around power input shaft 1, and that is, first planet gear mechanism P1 is also coaxially disposed with power input shaft 1.

The gear ring 8 of first planet gear mechanism P1 optionally rotor R 2 synchronous axial system with the second motor generator MG2, That is, the rotor R 2 of the rotation axiss of gear ring 8 of first planet gear mechanism P1 and the second motor generator MG2 Rotation axiss are coaxial, and the rotor R 2 of the gear ring 8 of first planet gear mechanism P1 and the second motor generator MG2 can be around same One axis together synchronous axial system it is also possible to each rotate around this axis.

Alternatively, the gear ring 8 of first planet gear mechanism P1 pass through the 3rd arrangement of clutch optionally with the second dynamoelectric and power generation Rotor R 2 synchronous axial system of machine MG2.As shown in figures 1 and 3, the 3rd arrangement of clutch can be clutch, i.e. the 3rd clutch Device C3；As shown in Figure 2 and Figure 4, the 3rd arrangement of clutch can be lock unit, i.e. the second lock unit S2.

The planet carrier 15 of the second planetary gears P2 is rigidly connected with the gear ring 8 of first planet gear mechanism P1, the second row The planet carrier 15 of star gear mechanism P2 be coaxially disposed with the gear ring 8 of first planet gear mechanism P1 and can synchronous axial system, and the The planet carrier 15 of two planetary gears P2 also optionally rotor R 2 synchronous axial system with the second motor generator MG2.

The sun gear 13 of the second planetary gears P2 is rigidly attached in the rotor R 2 of the second motor generator MG2 with The rotor R 2 of two motor generator MG2 is synchronous together to be rotated around rotation axiss, i.e. the sun gear of the second planetary gears P2 13 and second the rotor R 2 of motor generator MG2 be coaxially disposed and can synchronous axial system.

The gear ring 16 of power output portion 300 and the second planetary gears P2 links with by electromotor 200, the first dynamoelectric and power generation Machine MG1 and the power output of at least one of the second motor generator MG2, that is, power output portion 300 by with the second planet The gear ring 16 of gear mechanism P2 links with by the individually output or by the first motor generator MG1 of the power of electromotor 200 Power individually output or by the individually output or by electromotor 200 and first of the power of the second motor generator MG2 Power output after motor generator MG1 coupling or moving after electromotor 200 is coupled with the second motor generator MG2 Power output or the power coupling by electromotor 200, the first motor generator MG1 and the second motor generator MG2 three Export afterwards or will export after the power coupling of the first motor generator MG1 and the second motor generator MG2, for example Exported to wheel by differential mechanism.

Wherein, two parts " linkage " refer to that the motion between two parts is relevant, and a part motion drives another Part moves or both can be synchronized with the movement.

Alternatively, power output portion 300 can be single reduction gear unit structure, two reduction gear or infinite speed reduction mechanism.For example, In some embodiments shown in Fig. 1 and Fig. 2, power output portion 300 is two reduction gear, specifically this 2-level reducer Structure is second gear reduction unit structure.

The present invention other alternatively in embodiment, as shown in Figure 3 and Figure 4, power output portion 300 is single-stage speed reducing Mechanism, specifically this single-stage speed reducing mechanism is chain-drive mechanism or tape handler.When power output portion 300 is Chain conveyer machine When structure or tape handler, driven sprocket and driven pulley can be located on differential mechanism 100.Alternatively, single-stage speed reducing mechanism Can be single gear reductions mechanism, infinite speed reduction mechanism can be metal band type stepless speed reducer.

Depending on the concrete form in power output portion 300 can be according to the real needs of power drive system 1000, so that power The scope of application of drive system 100 is wider.

As Figure 1-Figure 4, the second planetary gears P2, the second motor generator MG2, first planet gear mechanism P1, First motor generator MG1 is increased successively with the distance of electromotor 200.Alternatively, electromotor 200 can horizontal can also Longitudinal.

Such arrangement, in electromotor 200 horizontal arrangement, makes power input shaft 1 especially extend, and power inputs One end of axle 1 is connected with the bent axle of electromotor 200, one end away from bent axle of power input shaft 1 and first planet gear mechanism Structure P1 is connected, ensured as far as possible that differential mechanism 100 close to car load laterally to turning on centrage, it is to avoid jackshaft is long Short inconsistent phenomenon, it is to avoid deviation phenomenon in vehicle, lifts the handling of vehicle.

Alternatively, torsion can be provided between one end away from bent axle of power input shaft 1 and first planet gear mechanism P1 Disk, vibroshock or flywheel.

More specifically, as Figure 1-Figure 4, the gear ring 16 with the second planetary gears P2 in power output portion 300 Connected part (the first driving gear 17 in such as Fig. 1 and Fig. 2 or the drivewheel in Fig. 3-Fig. 4) is defeated in power Enter being located axially between electromotor 200 and the second planetary gears P2 of axle 1, thereby further ensure that differential mechanism 100 close to car load laterally to turning on centrage.Further, the two grades of driving gears engaging with differential mechanism driven gear 21 20 sides being located remotely from electromotor 200, thus further ensured that differential mechanism 100 close to car load laterally to turning center On line.

Certainly, when electromotor 200 is longitudinal, such arrangement it is also possible to make power drive system 1000 structure tighter Gather, make full use of the axially and radially space of power input shaft 1.

Alternatively, brake unit B2 can be brake.As shown in figure 1, brake unit B2 is used for braking first planet tooth The planet carrier 15 of the gear ring 8 of wheel mechanism P1 and the second planetary gears P2 is that is to say, that brake unit B2 has system Two kinds of working conditions are braked in dynamic and releasing, during the braking of brake unit B2, the gear ring 8 and second of first planet gear mechanism P1 The planet carrier 15 of planetary gears P2 is braked simultaneously and can not rotate, when brake unit B2 releases braking, first planet The planet carrier 15 of the gear ring 8 of gear mechanism P1 and the second planetary gears P2 is rotatable.

Alternatively, brake unit B2 can be arranged on the gear ring 8 of first planet gear mechanism P1, or the 3rd clutch dress On the second active part 9 put.

Describe a specific embodiment of the power drive system 1000 according to the present invention referring to Fig. 1 in detail.As Fig. 1 Shown, power drive system 1000 includes electromotor 200, power input shaft 1, the first motor generator MG1, the second electricity Dynamic electromotor MG2, first planet gear mechanism P1, the second planetary gears P2, power output portion 300, brake unit B2, the second arrangement of clutch and the 3rd arrangement of clutch.

The bent axle of electromotor 200, power input shaft 1, the rotor R 1 of the first motor generator MG1, the second motor generator The rotor R 2 of MG2, first planet gear mechanism P1 and the second planetary gears P2 are coaxially disposed.

The bent axle of electromotor 200 is connected with power input shaft 1, and the rotor R 1 of the first motor generator MG1 passes through the second clutch Device optionally with power input shaft 1 synchronous axial system, the sun gear 5 of first planet gear mechanism P1 is rigidly attached to In the rotor R 1 of one motor generator MG1, the planet carrier 7 of first planet gear mechanism P1 is rigidly attached to power input shaft On 1, the gear ring 8 of first planet gear mechanism P1 is rigidly connected with the planet carrier 15 of the second planetary gears P2, and second The sun gear 13 of planetary gears P2 is rigidly attached to the rotor R 2 of the second motor generator MG2, the second planetary gear machine The gear ring 16 of structure P2 and power output portion 300 link, and the gear ring 8 of first planet gear mechanism P1 and the second planetary gear The planet carrier 15 of mechanism P2 is all optionally synchronous by the rotor R 2 of the 3rd arrangement of clutch and the second motor generator MG2 Rotate.

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 With the first secondary part 3 optionally synchronous axial system, power input shaft 1 is rigidly connected with the first active part 2, and first It is firm with the first secondary part 3 that the rotor R 1 of motor generator MG1 passes through the first input shaft 4 on power input shaft 1 for the empty set Property connect, so that the rotor R 1 optionally synchronous axial system of power input shaft 1 and the first motor generator MG1.

Further, the sun gear 5 of first planet gear mechanism P1 be rigidly attached on the first input shaft 4 that is to say, that The sun gear 5 of first planet gear mechanism P1 is rigidly attached to the rotor of the first motor generator MG1 by the first input shaft 4 On R1.

In other words, as shown in figure 1, the first input shaft 4 be quill shaft and empty set on power input shaft 1, first electronic The rotor R 1 of motor MG1 is hollow structure and passes through the first input shaft 4 empty set on power input shaft 1, the first input shaft 4 On be rigidly connected and have the sun gear 5 and first of the rotor R 1 of the first motor generator MG1, first planet gear mechanism P1 Secondary part 3.

Specifically, the second arrangement of clutch has joint and disconnects two kinds of working conditions, when the second arrangement of clutch engages, the One active part 2 is engaged with the first secondary part 3 and synchronous axial system, so that power input shaft 1 and the first motor generator Rotor R 1 synchronous axial system of MG1；When second arrangement of clutch disconnects, the first active part 2 is separated with the first secondary part 3, So that power input shaft 1 is separated with the rotor R 1 of the first motor generator MG1, respective self-movement.

As shown in figure 1, the 3rd arrangement of clutch includes the second active part 9 and the second secondary part 10, the second active part 9 With the second secondary part 10 optionally synchronous axial system, the gear ring 8 of first planet gear mechanism P1 and the second active part 9 are rigidly connected, and the rotor R 2 of the second motor generator MG2 passes through the second input shaft 11 on power input shaft 1 for the empty set It is rigidly connected with the second secondary part 10, so that the gear ring 8 of first planet gear mechanism P1 and the second motor generator MG2 Rotor R 2 optionally synchronous axial system, due to gear ring 8 and second planetary gears of first planet gear mechanism P1 The planet carrier 15 of P2 is rigidly connected, thus also by the planet carrier 15 of the second planetary gears P2 and the second motor generator The rotor R 2 optionally synchronous axial system of MG2.

Further, the sun gear 13 of the second planetary gears P2 be rigidly attached on the second input shaft 11 that is to say, that The sun gear 13 of the second planetary gears P2 is rigidly attached to turning of the second motor generator MG2 by the second input shaft 11 On sub- R2.

In other words, as shown in figure 1, the second input shaft 11 be quill shaft and empty set on power input shaft 1, second electronic The rotor R 2 of motor MG2 is hollow structure and passes through the second input shaft 11 empty set on power input shaft 1, the second input shaft It is rigidly connected on 11 and have the rotor R 2 of the second motor generator MG2, the sun gear 13 of the second planetary gears P2 and Two secondary parts 10.

Specifically, the 3rd arrangement of clutch has joint and disconnects two kinds of working conditions, when the 3rd arrangement of clutch engages, the Two active parts 9 are engaged with the second secondary part 10 and synchronous axial system, so that the gear ring 8 of first planet gear mechanism P1 And second planetary gears P2 planet carrier 15 and the second motor generator MG2 rotor R 2 synchronous axial system；3rd from Attach together when putting disconnection, the second active part 9 is separated with the second secondary part 10, so that first planet gear mechanism P1 The planet carrier 15 of gear ring 8 and the second planetary gears P2 is separated with the rotor R 2 of the second motor generator MG2, each Self-movement.

It is understood that respective self-movement includes resting state in foregoing description, empty set represents part on axle for the empty set Can be movable relatively with axle, that is, part can rotate around the axis rather than synchronous axial system together with axle.

Further, as shown in figure 1, the planet carrier 15 of the second planetary gears P2 passes through empty set in power input shaft 1 On the 3rd input shaft 12 be rigidly connected with the gear ring 8 of first planet gear mechanism P1, the second input shaft 11 empty set is the 3rd On input shaft 12.

That is, the 3rd input shaft 12 is hollow axle, and the second input shaft 11, the 3rd input shaft 12 and power input shaft 1 is nested successively, the 3rd input shaft 12 is rigidly connected and has gear ring 8 and second planetary gear of first planet gear mechanism P1 The planet carrier 15 of mechanism P2.

As shown in figure 1, power output portion 300 is two reduction gear, this two reduction gear includes intermeshing first Driving gear 17 and the first driven gear 18 and two grades of driving gears 20, the first driving gear 17 empty set inputs in power On axle 1, and the first driving gear 17 is connected with the gear ring 14 of the second planetary gears P2 and can be with the second planetary gear machine Gear ring 14 synchronous axial system of structure P2, the first driven gear 18 and two grades of driving gears 20 be coaxially disposed and can synchronous axial system, I.e. the first driven gear 18 and two grades of driving gears 20 are all rigidly attached on jackshaft 19 and along in the axial direction of jackshaft 19 Interval setting, two grades of driving gears 20 are suitable to engage with the differential mechanism driven gear 21 of differential mechanism 100, thus power is defeated The power going out portion 300 output is exported to the wheel of vehicle by differential mechanism 100.

Referring to the annexation of each part of above-mentioned power drive system 1000, describe in detail according to embodiments of the present invention The different working modes that power drive system 1000 has, the such as first dynamic branch pattern, the second dynamic branch pattern, Three dynamic branch patterns, series model, the first electric-only mode and the second electric-only mode, the first pure fuel oil pattern and second Pure fuel oil pattern, the first power generation in parking pattern and the second power generation in parking pattern.

When power drive system 1000 is in different working modes, the kinestate of each part is as shown in table 1：

Table 1：

Describe each mode of operation of power drive system 1000 according to embodiments of the present invention with reference to table 1 in detail：

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

When power drive system 1000 is in the first dynamic branch pattern, electromotor 200 works, the first motor generator MG1 It is in generating state or close machinery dotted state for electromotor and the second motor generator MG2 is in driving shape for motor State, the second arrangement of clutch disconnects and the 3rd arrangement of clutch engages, and brake unit releases braking.

Specifically, due to second arrangement of clutch disconnect and the 3rd arrangement of clutch engage, the first motor generator MG1 with start The power of machine 200 couples in first planet gear mechanism P1, and the first motor generator MG1 is responsible for speed governing, the second dynamoelectric and power generation Machine MG2 is responsible for the power after first planet gear mechanism P1 coupling is carried out adjusting to turn round.

Wherein first motor generator MG1 is responsible for speed governing and refers to：Electromotor 200 is single by power input shaft 1 drive first The planet carrier 7 of unit planetary gears P1 rotates, and the power of electromotor 200 is realized moving in first planet gear mechanism P1 Power shunts, and that is, a part of power drives the first motor generator MG1 generating to be delivered to the with electrical power path by sun gear 5 Two motor generator MG2, another part power mechanically exports from gear ring 8.The sun due to first planet gear mechanism P1 Between wheel 5, planet carrier 7 and gear ring 8, rotating speed is interrelated, therefore electromotor 200 can be maintained at economic speed interval Run, pass through the continuous rotating speed changing the first motor generator MG1 in certain range of speeds, thus the output of gear ring 8 turns Speed can realize electric controlling stepless variable speed with consecutive variations.Engine speed is decoupled with speed, makes the rotating speed of electromotor 200 all the time It is in fuel-efficient rotating speed interval, and the first motor generator MG1 electricity can be used for driving second electronic Motor MG2, it is to avoid the loss of discharge and recharge.

Second motor generator MG2 is responsible for the power after first planet gear mechanism P1 coupling is carried out adjusting torsion to refer to：By In being that power coupling, first planet gear mechanism are carried out by first planet gear mechanism P1 in this input power shunt mode Three rotating elements (i.e. sun gear, planet carrier and gear ring or first motor generator being connected with sun gear of structure P1 The rotor R 1 of MG1, the power input shaft 1 being connected with planet carrier and the second motor generator MG2 of being connected with gear ring are turned Sub- R2) although the decoupling of electromotor 200 rotating speed and speed can be realized, three rotating element rotating speeds are proportional relations , moment of torsion is also (being expressed as torsion lever) of proportional relation, and therefore the power drive system 1000 of the present invention passes through the One motor generator MG1 needs the second motor generator MG2 to carry out mending torsion after realizing the speed governing of electromotor 200 could preferably Meet the requirement of the dynamic property of system.

This input power shunt mode be applied to low speed or speed operation, now the first motor generator MG1 be in generating or Close to the state of mechanical. points, so not only guarantee that electromotor 200 always works in the higher rotating speed interval of efficiency, avoid simultaneously The larger electrical power circulation of system occurs, thus the system that ensure that higher fuel economy.

It is to be appreciated that speed may be considered low speed or middle speed operation in below 80km/h, this operating mode is especially suitable For city operating mode.Mechanical. points are the point that motor generator rotating speed is when zero, and now power drive system 1000 does not have electricity Power cycle, when the first motor generator MG1 is in mechanical. points, system whole efficiency is optimal.

Wherein, electrical power circulation refers to：When speed slowly rises to high speed from low speed, the first motor generator MG1 sends out Speed governing when electric is insufficient for speed demand, now must make the first motor generator MG1 reversion, is changed into from electromotor Motor, is in other words changed into driving condition by generating state and could meet speed demand, at this moment because the first motor generator MG1 is in driving condition, by first planet gear mechanism P1 moment of torsion distribution proportional the reason, the second motor generator MG2 Need to absorb a part of moment of torsion, even if the second motor generator MG2 is in generating state, now the second motor generator MG2 Electricity drives for the first motor generator MG1, so just creates electrical power circulation, it is electronic that electrical power circulates in second Electromotor MG2 (electricity gives the first motor generator MG1) the first motor generator MG1 (consumes the second motor generator The electricity of MG2) first planet gear mechanism P1 (coupling with electromotor 200) second motor generator MG2 (electricity To the first motor generator MG1) circulation in always consumed energy so that system capacity is constantly lost, cause system effectiveness Lowly.

2), the second dynamic branch pattern exports dynamic branch pattern：

When power drive system 1000 is in the second dynamic branch pattern, electromotor 200 works, the first motor generator MG1 It is in generating state for electromotor and the second motor generator MG2 is in driving condition for motor, the second arrangement of clutch Engage and the 3rd arrangement of clutch disconnects, brake unit releases braking.

Specifically, the second arrangement of clutch engages, the 3rd arrangement of clutch disconnection, the first motor generator MG1 and electromotor 200 Power directly couple in first planet gear mechanism P1, the first motor generator MG1 is responsible for adjusting and turns round, and the second dynamoelectric and power generation Machine MG2 is responsible for carrying out speed governing to the power after first planet gear mechanism P1 coupling.

Wherein first motor generator MG1 is responsible for adjusting torsion to refer to：Because the second arrangement of clutch engages, first planet gear mechanism The planet carrier 7 of the sun gear 5 of P1 and first planet gear mechanism P1 is rigidly connected, former according to the work of planetary gears Reason, first planet gear mechanism P1 is as a unitary rotation, so that electromotor 200 directly drives the first motor generator MG1 is generated electricity to absorb moment of torsion.And vehicle at a high speed or high speed operating mode downward driving (such as speed in 120km/h or Person is higher) when, the first motor generator MG1 generates electricity to drive for the second motor generator MG2 and uses, i.e. the first dynamoelectric and power generation It is that the second motor generator MG2 supplements electricity that machine MG1 is in generating state, it is to avoid electricity needs to be used as medium by set of cells The charge and discharge electrical loss producing.

Wherein second motor generator MG2 is responsible for carrying out speed governing to the power after first planet gear mechanism P1 coupling Refer to, because the 3rd arrangement of clutch disconnects, the second motor generator MG2 is motor rather than electromotor for driving condition, Thus the planet carrier 15 of the sun gear 13 of the second planetary gears P2 and the second planetary gears P2 is input, and Brakeless element in second planetary gears P2, according to the operation principle of planetary gears, unpowered output, thus real The speedy carding process of the gear ring 16 of existing second planetary gears P2, because the gear ring 16 of the second planetary gears P2 is permissible With wheel linkage, thus the 3rd actuated element here is wheel that is to say, that the speed governing master of the second motor generator MG2 If meeting the speedy carding process of wheel, at this moment due to being first motor generator MG1 the second motor generator MG2 second Planetary gears P2 wheel, will not produce big electrical power circulation, therefore be applied to high-speed working condition.

If it is to be appreciated that now the second motor generator MG2 is in generating state, not meeting the second planetary gear machine The Speed allotment relation of each element of structure P2.Thus not only guarantee that electromotor 200 always works in the higher rotating speed interval of efficiency, Also make the system to be easier to be operated near mechanical. points under this high-speed working condition, it is to avoid the larger electrical power circulation of system simultaneously Occur, thus ensure that splendid fuel economy.

Additionally, output dynamic branch pattern is more suitable for high speed or high speed operating mode, reason is as follows：High-speed working condition is typically not required to Torque output that will be too big, but need than the torque output under higher rotation speed, at this moment if with input power shunt mode Improper, so that turning round by first carrying out adjusting, then carry out speed governing.

3) the 3rd dynamic branch pattern is composite power shunt mode：

When power drive system 1000 is in the 3rd dynamic branch pattern, electromotor 200 works, the first motor generator MG1 It is motor or electromotor that is to say, that the first electricity can occur for motor or electromotor and the second motor generator MG2 Dynamic electromotor MG1 and the second motor generator MG2 simultaneously be motor or simultaneously be electromotor situation or first Another is electromotor for motor for one of motor generator MG1 and the second motor generator MG2, the second arrangement of clutch All disconnect with the 3rd arrangement of clutch, brake unit releases braking.

Specifically, electromotor 200 works, and the second arrangement of clutch and the 3rd arrangement of clutch all disconnect, the first motor generator MG1 is first coupled in first planet gear mechanism P1 with the power of electromotor 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 for first planet gear mechanism P1 in the second planetary gears P2 Power after coupling carries out speed governing again and adjusts torsion.

When system charge is sufficient, so that the first motor generator MG1 and the second motor generator MG2 is located simultaneously In driving condition, thus meeting the special limiting condition of vehicle, the operating mode such as such as high-speed passing.When system charge deficiency needs to mend During charging energy, generate electricity preferably by the first motor generator MG1, the working condition that the second motor generator MG2 drives, Thus avoiding the occurrence of big electrical power circulation.

Because the second arrangement of clutch and the 3rd arrangement of clutch all disconnect, now the first motor generator MG1 and the first dynamoelectric and power generation Machine MG1 all realizes the rotating speed coupling of planetary gears, and system has two mechanical. points respectively the first motor generator MG1 to turn Speed is point when zero, or the point that the second motor generator MG2 rotating speed is zero.Each mechanical. points, system can be kept away Exempt from circulating power and reach good fuel economy.But system is due to this rotating element not having braking member to be zero by rotating speed Locking, then need to brake using motor generator, and this motor generator now reaching mechanical. points does not have rotating speed but to there is moment of torsion, At this moment certain power attenuation can more or less be produced.At this time system dynamic output can be determined by operating mode, two electronic Electromotor all can export can also speed governing, the speed ratio specifically how selecting to need to consider two planetary gears and two electricity Power of dynamic electromotor etc..For example：During the low torsion of low speed, two motors can be selected simultaneously to generate electricity, electromotor 200 is exported Rotating speed carries out speed governing；At a high speed during high torsion, two motor generator can be driven, not only realize high rotating speed output and also can simultaneously Realize good torque output；And middle low speed is low when turning round output, a motor generator can be allowed close to machinery point-like with selectivity State and another motor generator power generation operation；Then can consider during high torsion at a high speed to allow a motor generator close to machinery point-like State and another motor generator driving work.These operating modes specifically need for by motor generator rotating speed, planetary gear machine The speed ratio of structure, torque relationship and rotation speed relation are determining.

For to sum up, above-mentioned three kinds of dynamic branch patterns are applied to different operating modes, can lead in power drive system 1000 The working condition crossing change the second arrangement of clutch, the 3rd arrangement of clutch and two motor generator neatly switches, and this just protects The fuel economy having demonstrate,proved whole power drive system 1000 reaches most preferably.

Specifically, general power drive system only has one of above-mentioned three kinds of mode of operations or two kinds, and each pattern Between switching control complicated, and each pattern be respectively provided with its inapplicable operating mode and under this inapplicable operating mode fuel economy poor, and Power drive system 1000 according to embodiments of the present invention, by input power shunt mode, output dynamic branch pattern and compound Dynamic branch pattern Three models combine, wherein input power shunt mode be applied to low speed or low speed work Condition, output dynamic branch pattern are applied to high speed or high speed operating mode, and composite power shunt mode overcomes input power and divides Stream mode and the deficiency of output dynamic branch pattern, can meet the special operation conditions such as high-speed passing, and by changing the second clutch The state of device, the joint of the 3rd arrangement of clutch and disconnection realizes power drive system 1000 in input power shunt mode, defeated Go out power shunt mode and the switching of composite power shunt mode, structure is simple and controls easily, thus achieves PWTN System 1000 all can guarantee that good fuel economy under each operating mode.

4), the first electric-only mode

When power drive system 1000 is in the first electric-only mode, electromotor 200 does not work, the first motor generator MG1 Do not work, the second motor generator MG2 is motor, the second arrangement of clutch and the 3rd arrangement of clutch all disconnect, brake unit B2 brakes.

Specifically, the second motor generator MG2 is in driving condition and drives the sun gear of the second planetary gearsets to rotate, Because the planet carrier 15 of the second planetary gears P2 is braked by brake unit B2, the power warp of the second motor generator MG2 Cross after the second planetary gears P2 slows down and power is exported to the first driving tooth from the gear ring 16 of the second planetary gears P2 Wheel 17 simultaneously passes to wheel driving moment via the first driven gear 18, two grades of driving gears 20, differential mechanism driven gears 21 Operating.Under this pattern, the rotating speed of the second motor generator MG2 have passed through three-level and slows down, speed ratio relatively large it is adaptable to rise Step or in run at a low speed.That is, the power drive system 1000 shown in Fig. 1, increased low speed during pure motorized motions Gear.

5), the second electric-only mode

When power drive system 1000 is in the second electric-only mode, electromotor 200 does not work, the first motor generator MG1 Do not work, the second motor generator MG2 is motor, the second arrangement of clutch disconnects and the 3rd arrangement of clutch engages.

Because the 3rd arrangement of clutch engages, thus make sun gear 13 and the second planetary gear machine of the second planetary gears P2 The planet carrier 15 of structure P2 is bonded to synchronous axial system, and the second input shaft 11 and the 3rd input shaft 12 are bonded to synchronous axial system simultaneously, According to the operation principle of planetary gears, the sun gear 13 of the second planetary gears P2 and the second planetary gears P2 Planet carrier 15 common rotation, thus driving the first driving gear 17 to rotate, the output of the second motor generator MG2 dynamic Power is by the gear ring 16 of the second planetary gears P2, the first driving gear 17,18, two grades of driving tooths of the first driven gear Wheel 20, differential mechanism driven gear 21 pass to the operating of wheel driving moment.

Gear ring 8 due to first planet gear mechanism P1 is rigidly connected with the planet carrier 15 of the second planetary gears P2, and Second arrangement of clutch disconnects, thus the gear ring 8 of first planet gear mechanism P1 can servo-actuated, now first planet gear mechanism The gear ring 8 of P1 can drive the sun gear 5 of first planet gear mechanism P1 to rotate, specifically, due to first planet gear mechanism The planet carrier 7 of structure P1 and power input shaft 1 are rigidly connected, the internal friction of the cylinder by being connected with the bent axle of electromotor 200 Power can ensure that the bent axle of electromotor 200 will not rotate, and that is, power input shaft 1 will not rotate, therefore first planet gear mechanism The sun gear 5 of structure P1 dallies.Speed under this pattern is smaller it is adaptable to high speed or high speed travel.

6) series model

When power drive system 1000 is in series model, electromotor 200 works, and the first motor generator MG1 generates electricity and the Two motor generator MG2 are motor, and the second arrangement of clutch and the 3rd arrangement of clutch all disconnect, and brake unit B2 is braked.

Due to the braking of brake unit B2, thus the gear ring 8 of first planet gear mechanism P1 is braked to rotating, start Machine 200 power is rotated by the planet carrier 7 that power input shaft 1 drives first planet gear mechanism P1, and through first planet The one-level speedup of gear mechanism P1 drives the first motor generator MG1 to generate electricity, for driving the power of power drive system 1000 Battery supplements electricity.Economic zone rotating speed in view of the rotating ratio electromotor 200 of the generating high efficiency range of motor generator is high, This power drive system 1000 is set to the planet carrier 7 that electromotor 200 accesses first planet gear mechanism P1, and the first electricity The rotor R 1 of dynamic electromotor MG1 is then set to the sun gear 5 that rigidity connects firmly first planet gear mechanism P1, by the first row The speed ratio relation of star gear mechanism P1 understands, above-mentioned annexation with speedup, can meet the rotating speed of the first motor generator MG1 Demand.Again because brake unit B2 brakes the planet carrier 15 of the second planetary gears P2 to rotating, second is electronic Electromotor MG2 can participate in driving, and the speed ratio relation now by the second planetary gears P2 understands, above-mentioned annexation Can slow down, meet the demand of vehicle traction moment of torsion.

7), the first pure fuel oil pattern

When power drive system 1000 is in the first pure fuel oil pattern, electromotor 200 works, the first motor generator MG1 and Second motor generator MG2 does not all work, and the second arrangement of clutch and the 3rd arrangement of clutch all engage, and brake unit B2 releases system Dynamic.

Specifically, the first motor generator MG1 and the second motor generator MG2 does not work, because the second arrangement of clutch connects Close, the planet carrier 7 of the sun gear 5 of first planet gear mechanism P1 and first planet gear mechanism P1 is all inputted with power Axle 1 is bonded to synchronous axial system, and makes the first input shaft 4 engage synchronous axial system with power input shaft 1, according to planetary gear machine The operation principle of structure, first planet gear mechanism P1 is as a unitary rotation.

Because the 3rd arrangement of clutch engages, thus make sun gear 13 and the second planetary gear machine of the second planetary gears P2 The planet carrier 15 of structure P2 is bonded to synchronous axial system, and the second input shaft 11 and the 3rd input shaft 12 are bonded to synchronous axial system simultaneously, And the gear ring 8 of first planet gear mechanism P1 is rigidly connected with the planet carrier 15 of the second planetary gears P2, according to planet The operation principle of gear mechanism, the planet carrier of the sun gear 13 of the second planetary gears P2 and the second planetary gears P2 15 common rotation, that is, the second planetary gears P2 is as a unitary rotation, thus driving the first driving gear 17 to rotate, The power of electromotor 200 output passes through first planet gear mechanism P1, the gear ring 16, first of the second planetary gears P2 Driving gear 17, the first driven gear 18, two grades of driving gears 20, differential mechanism driven gears 21 pass to car wheel drive vehicle Wheel operating.

It is to be appreciated that in the first pure fuel oil pattern, one and only one speed ratio of power of electromotor 200 output drives car Wheel, that is, under this first pure fuel oil pattern, the single gear output mode of power drive system 1000 only, this pattern is not Need to use motor generator, motor generator is merely only idle running, thus this pattern is only relatively applied to electromotor 200 Relatively inexpensive rotating speed is interval.

Especially, under this first pure fuel oil pattern, though the power of electromotor 200 output is through Multi-stage transmission Chain conveyer, this When two groups of planetary gears function only as the transmission being equivalent to spline, and if arrangement of clutch adopts dry clutch, move Power drive system 1000 still can obtain Billy with the electromotor 200 of motor generator speed governing and electronic under some specific operations Higher fuel economy during electric generator hybrid power output mode.

Due to the first pure fuel oil pattern, the gear pair that driving-chain passes through is few, transmission efficiency, do not have motor generator to generate electricity and The operating mode (this two parts can lose the efficiency of the 80% about of electromotor 200) driving, does not have battery set charge/discharge feelings simultaneously Condition, therefore under this specific operation, electromotor 200 work fuel economy is good, thus this first pure fuel oil pattern have certain excellent More property.

Wherein specific operation will be according under the first pure fuel oil pattern, from the speed ratio of the driving-chain to wheel for the bent axle of electromotor 200 To determine, and the speed ratio of driving-chain determines the moment of torsion interval that speed and electromotor 200 are realized.For example, this speed ratio is similar to normal If 3 gears of rule vehicle, then just good in this vehicle speed intervals fuel economy being suitable for 3 gears, that is, it is applied to this Operating mode.

Certainly, arrangement of clutch can also adopt wet clutch, but stir oil using wet clutch due to meeting and be likely to result in portion The loss of point energy, but this loss is also not too large, is unlikely to have influence on the excellent of under this specific operation fuel-economy More property.

8) the second pure fuel oil pattern

When power drive system 1000 is in the second pure fuel oil pattern, electromotor 200 works, the first motor generator MG1 and At least one of second motor generator MG2 is electromotor, and the second arrangement of clutch and the 3rd arrangement of clutch all engage, braking Device B2 releases braking.

Specifically, the first motor generator MG1 and one both the second motor generator MG2 or be simultaneously in generating state, Supplement electricity for system.Electromotor 200 works, and the second arrangement of clutch and the 3rd arrangement of clutch all engage, first planet gear As a unitary rotation and the second planetary gears P2 is as a unitary rotation, electromotor 200 power warp for mechanism P1 Cross first planet gear mechanism P1, the second planetary gears P2, the first driving gear 17, the first driven gear 18, two Level driving gear 20, differential mechanism driven gear 21 pass to the operating of wheel driving moment.

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

9) the first power generation in parking pattern

When power drive system 1000 is in the first power generation in parking pattern, the gear ring 16 of the second planetary gears P2 is braked, Electromotor 200 works, and the first motor generator MG1 is electromotor and the second motor generator MG2 does not work, the second clutch Device and the 3rd arrangement of clutch all disconnect, and brake unit B2 is braked.

Specifically, vehicle passes through electronic parking system by wheel lock up, so that the gear ring 16 of the second planetary gears P2 Braking, power input shaft 1 utilizes electromotor 200 output power to directly drive first planet by first planet gear mechanism P1 The planet carrier 7 of gear mechanism P1 rotates, due to the braking of brake unit B2, i.e. gear ring 8 quilt of first planet gear mechanism P1 Braking, is increased with the rotor R 1 of the rigidly connected first motor generator MG1 of sun gear 5 of first planet gear mechanism P1 Fast (speed ratio is suitable) drives and generates electricity, and is that system supplements energy.

10) the second power generation in parking pattern, i.e. high-power power generation in parking pattern, now the first motor generator MG1 and second electricity Dynamic electromotor MG2 all generates electricity

When power drive system 1000 is in the second power generation in parking pattern, electromotor 200 works, the second planetary gears P2 Gear ring 16 brake, the first motor generator MG1 and the second motor generator MG2 are electromotor, and the second arrangement of clutch connects Close and the 3rd arrangement of clutch disconnects, brake unit B2 releases braking.

Specifically, vehicle passes through electronic parking system by wheel lock up, and electromotor 200 works, and the second arrangement of clutch engages, Electromotor 200 directly drives the first motor generator MG1 action to supplement electricity to generate electricity for system.

Because the second arrangement of clutch engages, first planet gear mechanism P1 is as a unitary rotation, i.e. first planet gear mechanism The gear ring 8 of structure P1 is with power input shaft 1 synchronous axial system although the 3rd arrangement of clutch disconnects, but due to the second planetary gear machine The planet carrier 15 of structure P2 is rigidly connected with the gear ring 8 of first planet gear mechanism P1, and the second planetary gears P2 Gear ring 16 is braked, thus the second motor generator MG2 is also driven generating to supplement energy for system by electromotor 200.

For functionally, this power drive system 1000 is by 200, two motor generator of electromotor, two planetary gears Mechanism and two arrangement of clutch, brake units B2 composition, by the control of two arrangement of clutch and brake unit B2 both The single gear output of electromotor 200 and pure electronic output can be realized, can also neatly realize under hybrid power operating mode simultaneously The mutual switching of input power shunt mode, output dynamic branch pattern and composite power shunt mode.By controlling second Arrangement of clutch, the 3rd arrangement of clutch, the first motor generator MG1 and the second motor generator MG2, brake unit B2 are not Same working condition, can under different operating modes, for guaranteeing car load optimal fuel economy, comfortableness or dynamic property demand thus Select the different mode of operation of hybrid power system.

That is, connect in 200, two motor generator of electromotor, two planetary gears and two arrangement of clutch closing On the basis of system, by with the second arrangement of clutch of different working condition, the 3rd arrangement of clutch, the first motor generator MG1, Second motor generator MG2, the combination of brake unit B2, can at least realize above-mentioned ten kinds of mode of operations, and every kind of work Pattern is all applied to different operating modes and ensure that the need of car load optimal fuel economy, comfortableness or dynamic property in this applicable working condition Ask, simple, vdiverse in function and be applied on vehicle by the structure of this power drive system 1000, vehicle can be made under each operating mode Can have good fuel economy, comfortableness and dynamic property during motion.

Especially, under different operating modes, coupling possesses the work of the splendid fuel economy of car load, comfortableness or dynamic property demand Pattern, each pattern switching controls thinking simple, car travel mode variation, maximally by splendid fuel economy with relax Adaptive covers all driving cycles of vehicle.For structure, as hybrid power coupling unit, it has concurrently planetary gears Transmission efficiency, realize that ratio coverage is wide and the advantages of compact conformation.

In short, power drive system 1000 according to embodiments of the present invention, different work can be selected according to different operating modes Pattern, and fuel economy is high, system effectiveness is high, electrical power circulation is little, each mode switching structure is simple simultaneously.

Further, as Figure 1-Figure 4, the second planetary gears P2, the second motor generator MG2, the 3rd clutch Device, first planet gear mechanism P1, the first motor generator MG1 and the second arrangement of clutch and electromotor 200 distance according to Secondary increase.

Alternatively, electromotor 200 can horizontal can also be longitudinal.

Such arrangement, in electromotor 200 horizontal arrangement, makes power input shaft 1 especially extend, and power inputs One end of axle 1 is connected with the bent axle of electromotor 200, one end away from bent axle of power input shaft 1 and the second arrangement of clutch with And first planet gear mechanism P1 is connected, ensured as far as possible that differential mechanism 100 close to car load laterally to turning on centrage, Avoid jackshaft cause different in size phenomenon, it is to avoid deviation phenomenon in vehicle, lift the handling of vehicle.

Alternatively, reverse plate can be provided between one end away from bent axle of power input shaft 1 and the second arrangement of clutch, subtract Shake device or flywheel.

It is with the difference of the embodiment shown in Fig. 1-Fig. 4 in embodiment as shown in Figure 5, first the first actuated element For the planet carrier 7 of first planet gear mechanism P1, second the first actuated element is the sun of first planet gear mechanism P1 Wheel 5, the 3rd the first actuated element is the gear ring 8 of first planet gear mechanism P1；First the second actuated element is second The planet carrier 15 of planetary gears P2, second the second actuated element is the sun gear 13 of the second planetary gears P2, 3rd the second actuated element is the gear ring 16 of the second planetary gears P2, and those skilled in the art can retouch according to above-mentioned The mode of operation stating the power drive system 1000 to Fig. 1 derives the work of the power drive system 1000 shown in Fig. 5 Pattern, here no longer describes in detail.

It is with the difference of the embodiment shown in Fig. 1-Fig. 4 in embodiment as shown in Figure 6, first the first actuated element For the sun gear 5 of first planet gear mechanism P1, second the first actuated element is the planet of first planet gear mechanism P1 Frame 7, the 3rd the first actuated element is the gear ring 8 of first planet gear mechanism P1；First the second actuated element is second The sun gear 13 of planetary gears P2, second the second actuated element is the planet carrier 15 of the second planetary gears P2, 3rd the second actuated element is the gear ring 16 of the second planetary gears P2, and those skilled in the art can retouch according to above-mentioned The mode of operation stating the power drive system 1000 to Fig. 1 derives the work of the power drive system 1000 shown in Fig. 6 Pattern, here no longer describes in detail.

It is with the difference of the embodiment shown in Fig. 1-Fig. 4 in embodiment as shown in Figure 7, first the first actuated element For the planet carrier 7 of first planet gear mechanism P1, second the first actuated element is the sun of first planet gear mechanism P1 Wheel 5, the 3rd the first actuated element is the gear ring 8 of first planet gear mechanism P1；First the second actuated element is second The sun gear 13 of planetary gears P2, second the second actuated element is the planet carrier 15 of the second planetary gears P2, 3rd the second actuated element is the gear ring 16 of the second planetary gears P2, and those skilled in the art can retouch according to above-mentioned The mode of operation stating the power drive system 1000 to Fig. 1 derives the work of the power drive system 1000 shown in Fig. 7 Pattern, here no longer describes in detail.

It is with the difference of the embodiment shown in Fig. 1-Fig. 4 in embodiment as shown in Figure 8, first the first actuated element For the gear ring 8 of first planet gear mechanism P1, second the first actuated element is the planet carrier 7 of first planet gear mechanism P1, 3rd the first actuated element is the sun gear 5 of first planet gear mechanism P1；First the second actuated element is the second planet The planet carrier 15 of gear mechanism P2, second the second actuated element is the sun gear 13 of the second planetary gears P2, the 3rd Individual second actuated element is the gear ring 16 of the second planetary gears P2, and those skilled in the art can be according in foregoing description The mode of operation of the power drive system 1000 shown in Fig. 8 is derived to the mode of operation of the power drive system 1000 of Fig. 1, Here no longer describes in detail.

It is with the difference of the embodiment shown in Fig. 1-Fig. 4 in embodiment as shown in Figure 9, first the first actuated element For the sun gear 5 of first planet gear mechanism P1, second the first actuated element is the planet of first planet gear mechanism P1 Frame 7, the 3rd the first actuated element is the gear ring 8 of first planet gear mechanism P1；First the second actuated element is second The planet carrier 15 of planetary gears P2, second the second actuated element is the gear ring 16 of the second planetary gears P2, the Three the second actuated elements are the sun gear 13 of the second planetary gears P2, and those skilled in the art can retouch according to above-mentioned The mode of operation stating the power drive system 1000 to Fig. 1 derives the work of the power drive system 1000 shown in Fig. 9 Pattern, here no longer describes in detail.

It is with the difference of the embodiment shown in Fig. 1-Fig. 4 in embodiment as shown in Figure 10, first the first actuated element For the gear ring 8 of first planet gear mechanism P1, second the first actuated element is the planet carrier 7 of first planet gear mechanism P1, 3rd the first actuated element is the sun gear 5 of first planet gear mechanism P1；First the second actuated element is the second planet The planet carrier 15 of gear mechanism P2, second the second actuated element is the gear ring 16 of the second planetary gears P2, the 3rd Second actuated element is the sun gear 13 of the second planetary gears P2, and those skilled in the art can be according in foregoing description The mode of operation of the power drive system 1000 shown in Figure 10 is derived to the mode of operation of the power drive system 1000 of Fig. 1, Here no longer describes in detail.

In short, the embodiment of power drive system 1000 according to embodiments of the present invention is various, different visitors can be met Family demand.

In sum, this power drive system 1000 functional realiey enrich, compact conformation, reasonable in design, have concurrently simultaneously and be directed to The mode switching manner of splendid fuel economy and comfortableness is guaranteed, scheme is reliable, practical value is high under each operating mode.

Additionally, power drive system 1000 according to embodiments of the present invention, in the first motor generator MG1, first planet tooth Wheel mechanism P1, the second motor generator MG2, the second planetary gears P2 and power output portion 300 and brake unit On the basis of the annexation of B2 and working condition, creatively arrange the first motor generator MG1, first planet gear Mechanism P1, the position of the second motor generator MG2, the second planetary gears P2 and power output portion 300, not only Achieve multiple different mode of operations, and each mode of operation is applied to different operating modes, and ensure that splendid fuel economy And comfortableness, and mode switching structure is simple, also makes the compact overall structure of power drive system 1000, arrangement space is little, Structure is simply easily realized.

In short, power drive system 1000 according to embodiments of the present invention, mode of operation is various and each mode of operation switching letter Single, particularly innovatively will be organic to input power shunt mode system, output dynamic branch pattern and composite power shunt mode Ground combines, thus tackling various operating modes, splendid fuel economy is realized with reference to the respective advantage of three in subversiveness ground, And the structure simple-arranged of realization is compact.

According to embodiments of the present invention vehicle is briefly described below, this vehicle includes above-mentioned power drive system 1000, thus There is arrangement compact, the advantages of fuel economy is high.

In describing the invention it is to be understood that term " orientation of instruction or the position relationship such as " center ", " axial " Be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and simplify description, rather than instruction or The hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that Limitation of the present invention.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed Or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two Individual, three etc., unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection " should It is interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be to be mechanically connected, Can also be to electrically connect or can communicate each other；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals or the interaction relationship of two elements, limit unless otherwise clear and definite.General for this area For logical technical staff, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. mean specific features with reference to this embodiment or example description, structure, material or Feature is contained at least one embodiment or the example of the present invention.In this manual, the schematic representation to above-mentioned term Necessarily it is directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible Any one or more embodiments or example combine in an appropriate manner.Additionally, in the case of not conflicting, ability The feature of the different embodiments described in this specification or example and different embodiment or example can be entered by the technical staff in domain Row combines and combines.

Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is exemplary, It is not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment It is changed, changes, replacing and modification.

Claims

1. a kind of power drive system is it is characterised in that include：

Electromotor；

Power input shaft, described power input shaft is connected with the bent axle of described electromotor；

First motor generator；

Second motor generator；

First planet gear mechanism, described first planet gear mechanism includes three the first actuated elements, described three first biographies In dynamic element first is rigidly attached on the rotor of described first motor generator, in described three the first actuated elements Second is rigidly attached on described power input shaft, described first in described three the first actuated elements with described three In first actuated element described second optionally synchronous axial system, and described in described three the first actuated elements Two is one of sun gear and planet carrier of described first planet gear mechanism；

Second planetary gears, described second planetary gears includes three the second actuated elements, described three second biographies In dynamic element first is rigidly connected with the 3rd in described three the first actuated elements, described three the second actuated elements In second be rigidly attached on the rotor of described second motor generator；

Brake unit, described brake unit is used for braking described 3rd the first actuated element and first the second actuated element；

Power output portion, described power output portion is linked with the 3rd in described three the second actuated elements to start described The power output of at least one of machine, described first motor generator and described second motor generator, wherein said first Actuated element and described second actuated element are accordingly one of the sun gear of planetary gears, planet carrier and gear ring.

2. power drive system according to claim 1 is it is characterised in that first the first actuated element is described the The sun gear of one planetary gears, second the first actuated element is the planet carrier of described first planet gear mechanism, the 3rd Individual first actuated element is the gear ring of described first planet gear mechanism；

First the second actuated element is the planet carrier of described second planetary gears, and second the second actuated element is described The sun gear of the second planetary gears, the 3rd the second actuated element is the gear ring of described second planetary gears.

3. power drive system according to claim 1 it is characterised in that

Described power input shaft is passed through the second arrangement of clutch and is optionally synchronously turned with the rotor of described first motor generator It is dynamic,

The gear ring of described first planet gear mechanism pass through the 3rd arrangement of clutch optionally with described second motor generator Rotor synchronous axial system.

4. power drive system according to claim 3 it is characterised in that described power drive system have first move Power shunt mode, the second dynamic branch pattern and the 3rd dynamic branch pattern；

When described power drive system is in the first dynamic branch pattern, described electromotor work, described first motor generator It is motor for electromotor and described second motor generator, described second arrangement of clutch disconnects and described 3rd arrangement of clutch connects Close, described brake unit releases braking；

When described power drive system is in the second dynamic branch pattern, described electromotor work, described first motor generator It is motor for electromotor and described second motor generator, described second arrangement of clutch engages and described 3rd arrangement of clutch breaks Open, described brake unit releases braking；

When described power drive system is in the 3rd dynamic branch pattern, described electromotor work, described first motor generator For motor or electromotor and described second motor generator is motor or electromotor, described second arrangement of clutch and described the Three arrangement of clutch all disconnect, and described brake unit releases braking.

5. power drive system according to claim 3 is it is characterised in that described power drive system has series connection mould Formula；

When described power drive system is in series model, described electromotor work, described first motor generator generates electricity and institute Stating the second motor generator is motor, and described second arrangement of clutch and described 3rd arrangement of clutch all disconnect, described braking dress Put braking.

6. power drive system according to claim 3 it is characterised in that described power drive system to have first pure Electric model and the second electric-only mode；

When described power drive system is in the first electric-only mode, described electromotor does not work, described first motor generator Do not work, described second motor generator is motor, described second arrangement of clutch and described 3rd arrangement of clutch all disconnect, Described brake unit braking；

When described power drive system is in the second electric-only mode, described electromotor does not work, described first motor generator Do not work and described second motor generator be motor, described second arrangement of clutch disconnects and described 3rd arrangement of clutch engages, Described brake unit releases braking.

7. power drive system according to claim 3 it is characterised in that described power drive system to have first pure Fuel oil pattern and the second pure fuel oil pattern；

When described power drive system is in the first pure fuel oil pattern, the work of described electromotor, described first motor generator and Described second motor generator does not all work, and described second arrangement of clutch and described 3rd arrangement of clutch all engage, described braking Device releases braking；

When described power drive system is in the second pure fuel oil pattern, the work of described electromotor, described first motor generator and At least one of described second motor generator is electromotor, and described second arrangement of clutch and described 3rd arrangement of clutch all connect Close, described brake unit releases braking.

8. power drive system according to claim 3 is it is characterised in that described power drive system has first stays Car power generation mode and the second power generation in parking pattern；

When described power drive system is in the first power generation in parking pattern, the gear ring braking of described second planetary gears, institute State electromotor work, described first motor generator is that electromotor and described second motor generator do not work, described second from Attach together to put and all disconnect with described 3rd arrangement of clutch, described brake unit braking；

When described power drive system is in the second power generation in parking pattern, the gear ring braking of described second planetary gears, institute State electromotor work, described first motor generator and described second motor generator are electromotor, described second clutch dress Put joint and described 3rd arrangement of clutch disconnects, described brake unit releases braking.

9. power drive system according to claim 3 is it is characterised in that described second arrangement of clutch and the described 3rd Arrangement of clutch is clutch；Or

Described second arrangement of clutch and described 3rd arrangement of clutch are lock unit.

10. power drive system according to claim 1 is it is characterised in that described power output portion is single-stage speed reducing Mechanism, two reduction gear or infinite speed reduction mechanism.

11. power drive systems according to claim 10 are it is characterised in that described power output portion is double reduction Mechanism, described two reduction gear includes：Intermeshing first driving gear and the first driven gear and two grades of driving tooths Wheel, described first driving gear empty set is on described power input shaft, and described first driving gear and described second planet tooth The gear ring of wheel mechanism is connected and can be with the gear ring synchronous axial system of described second planetary gears, described first driven gear and institute State two grades of driving gears be coaxially disposed and can synchronous axial system, described two grades of driving gears are suitable to the differential mechanism driven tooth with differential mechanism Wheel engagement.

12. power drive systems according to claim 3 are it is characterised in that described second arrangement of clutch includes first Active part and the first secondary part, described first active part and described first secondary part optionally synchronous axial system；

Described power input shaft is rigidly connected with described first active part；

The rotor of described first motor generator pass through the first input shaft on described power input shaft for the empty set with described first from Dynamic part is rigidly connected, and the sun gear of described first planet gear mechanism is rigidly attached on described first input shaft.

13. power drive systems according to claim 3 are it is characterised in that described 3rd arrangement of clutch includes second Active part and the second secondary part, described second active part and described second secondary part optionally synchronous axial system；

The gear ring of described first planet gear mechanism is rigidly connected with described second active part；

The rotor of described second motor generator pass through the second input shaft on described power input shaft for the empty set with described second from Dynamic part is rigidly connected, and the sun gear of described second planetary gears is rigidly attached on described second input shaft.

14. power drive systems according to claim 13 are it is characterised in that the row of described second planetary gears Carrier is rigidly connected with the gear ring of described first planet gear mechanism by the 3rd input shaft on described power input shaft for the empty set Connect, described second input shaft empty set is on described 3rd input shaft.

15. power drive systems according to claim 2 are it is characterised in that described second planetary gears, institute State the distance of the second motor generator, described first planet gear mechanism and described first motor generator and described electromotor according to Secondary increase.

16. power drive systems according to claim 2 or 15 it is characterised in that described power output portion with institute State the second planetary gears gear ring be connected part be located between described electromotor and described second planetary gears.

A kind of 17. vehicles are it is characterised in that include the power drive system according to any one of claim 1-16.