CN106476607A

CN106476607A - Power drive system and the vehicle with it

Info

Publication number: CN106476607A
Application number: CN201510548155.3A
Authority: CN
Inventors: 凌和平; 翟震; 徐友彬; 罗永孟
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: CN106476607B

Abstract

The invention discloses a kind of power drive system and the vehicle with it, this power drive system includes electromotor, power input shaft, first and second planetary gears, first and second motor generator, power output portion, the rotor synchronous axial system of the wherein sun gear of first planet gear mechanism and the first motor generator, the planet carrier of first planet gear mechanism and power input shaft are rigidly connected and synchronous and its gear ring and second planetary gears planet carrier alternative with the rotor of the first motor generator is rigidly connected and optionally synchronous with the rotor of the second motor generator, the rotor of the sun gear of the 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, has multiple different mode of operations, adapts to different operating modes, and can keep 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 , thus causing to decline under this operating mode, there is room for improvement in the shortcoming of circulation car load fuel economy.

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；Power Output section, the 3rd linkage in described power output portion and described three the second actuated elements is with by described electromotor, described The power output of at least one of the first motor generator and described second motor generator, wherein said first actuated element It is accordingly one of the sun gear of planetary gears, planet carrier and gear ring with described second actuated element.

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 that increased the first arrangement of clutch on the basis of Fig. 1；

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

Fig. 5 is a kind of enforcement of the power drive system of another embodiment showing power output portion on the basis of Fig. 1 Example；

Fig. 6 is a kind of enforcement of the power drive system of another embodiment showing power output portion on the basis of Fig. 2 Example；

Fig. 7 is a kind of enforcement of the power drive system of another embodiment showing power output portion on the basis of Fig. 3 Example；

Fig. 8 is a kind of enforcement of the power drive system of another embodiment showing power output portion on the basis of Fig. 4 Example；

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

Figure 10 is the PWTN that the second arrangement of clutch and the 3rd arrangement of clutch are changed on the basis of Fig. 9 lock unit from clutch A kind of embodiment of system；

Figure 11 is a kind of enforcement of the power drive system of another embodiment showing power output portion on the basis of Fig. 9 Example；

Figure 12 be show on the basis of Figure 10 power output portion the power drive system of another embodiment a kind of real Apply example；

Figure 13 is the structural representation of the power drive system of the 3rd embodiment according to the present invention；

Figure 14 is the power transmission that the second arrangement of clutch and the 3rd arrangement of clutch are changed on the basis of Figure 13 lock unit from clutch A kind of embodiment of system；

Figure 15 is a kind of enforcement of the power drive system of another embodiment showing power output portion on the basis of Figure 13 Example；

Figure 16 is a kind of enforcement of the power drive system of another embodiment showing power output portion on the basis of Figure 14 Example.

Figure 17 is a kind of embodiment of the power drive system increasing by the second brake unit on the basis of Fig. 9；

Figure 18 is a kind of embodiment of the power drive system increasing by the second brake unit on the basis of Figure 10；

Figure 19 be show on the basis of Figure 17 power output portion the power drive system of another embodiment a kind of real Apply example；

Figure 20 be show on the basis of Figure 18 power output portion the power drive system of another embodiment a kind of real Apply example；

Figure 21 is the structural representation of the power drive system of the 4th embodiment according to the present invention；

Figure 22 is the structural representation of the power drive system of the 5th embodiment according to the present invention；

Figure 23 is the structural representation of power drive system according to the sixth embodiment of the present；

Figure 24 is the structural representation of the power drive system of the 7th embodiment according to the present invention；

Figure 25 is the structural representation of the power drive system of the 8th embodiment according to the present invention；

Figure 26 is the structural representation of the power drive system of the 9th embodiment according to the present invention.

Reference：

Power drive system 1000, differential mechanism 100, electromotor 200, power input shaft 1, the first motor generator MG1, The rotor R 1 of motor generator MG1, the second motor generator MG2, the second motor generator MG2 rotor R 2, first from Attach together and put C1, second clutch C2, the first active part 2, the first secondary part 3, the first input shaft 4, first planet Gear mechanism P1, the sun gear 5 of first planet gear mechanism P1, the planetary gear 6, first of first planet gear mechanism P1 The planet carrier 7 of planetary gears P1, the gear ring 8 of first planet gear mechanism P1, the 3rd clutch C3, the second active Part 9, the second secondary part 10, the second input shaft 11, the 3rd input shaft 12, the second planetary gears P2, second The sun gear 13 of planetary gears P2, the planetary gear 14 of the second planetary gears P2, the second planetary gears P2 Planet carrier 15, the gear ring 16 of the second planetary gears P2, power output portion 300, the first driving gear 17, first Driven gear 18,19, two grades of driving gears 20 of jackshaft, differential mechanism driven gear 21, the first brake unit B1, second Brake unit B2, the 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 26, power drive system 1000 according to embodiments of the present invention is described.According to embodiments of the present invention Power drive system 1000 include electromotor 200, power input shaft 1, the first motor generator MG1, second electronic Motor 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.

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 shown in Fig. 1-Figure 20, it is defeated that power drive system 1000 according to embodiments of the present invention includes electromotor 200, power Enter axle 1, the first motor generator MG1, the second motor generator MG2, first planet gear mechanism P1, the second planetary gear Mechanism P2 and power output portion 300.

As shown in Fig. 1-Figure 20, 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 shown in Fig. 1-Figure 20, the rotor R 1 of the first motor generator MG1 is optionally synchronous with power input shaft 1 to be turned Move that is to say, that 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 rotor R 1 of the first motor generator MG1 can together with power input shaft 1 is around same axis synchronous axial system it is also possible to each Rotate around this axis.

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 Fig. 1, Fig. 3, Fig. 5, Fig. 7, Fig. 9, Figure 11, Figure 13, Figure 15, Figure 17, Figure 19, the Two arrangement of clutch can be clutch, i.e. second clutch C2；As Fig. 2, Fig. 4, Fig. 6, Fig. 8, Figure 10, Figure 12, figure 14th, shown in Figure 16, Figure 18, Figure 20, 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 shown in Fig. 1-Figure 20, 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 Fig. 1, Fig. 3, Fig. 5, Fig. 7, Fig. 9, Figure 11, Figure 13, Figure 15, Figure 17, Shown in Figure 19, the 3rd arrangement of clutch can be clutch, i.e. the 3rd clutch C3；As Fig. 2, Fig. 4, Fig. 6, Fig. 8, figure 10th, shown in Figure 12, Figure 14, Figure 16, Figure 18, Figure 20, 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 The power output of at least one of machine MG1 and the second motor generator MG2, that is, power output portion 300 by with the second row The gear ring 16 of star 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.

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-Fig. 4, Fig. 9-Figure 18, Figure 13 and Figure 14, power output portion 300 is 2-level reducer Structure, specifically this two reduction gear is second gear reduction unit structure.

The present invention other alternatively in embodiment, as shown in Fig. 5-Fig. 8, Figure 11-Figure 20, Figure 15 and Figure 16, Power output portion 300 is single-stage speed reducing mechanism, and specifically this single-stage speed reducing mechanism is chain-drive mechanism or tape handler.When Power output portion 300 is that when chain-drive mechanism or tape handler, driven sprocket and driven pulley can be located on differential mechanism 100. Alternatively, single-stage speed reducing mechanism can also be single gear reductions mechanism, and infinite speed reduction mechanism can subtract for metal band type is stepless Fast device.

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.

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, the second clutch Device 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, electric-only mode, the first pure fuel oil pattern and the second pure fuel oil pattern, the first power generation in parking pattern and 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.

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 rotated by the planet carrier 7 that power input shaft 1 drives the first single unit planetary gears P1, sends out The power of motivation 200 realizes dynamic branch in first planet gear mechanism P1, and that is, a part of power passes through sun gear 5 and drives the One motor generator MG1 generates electricity and is delivered to the second motor generator MG2 with electrical power path, and another part power is from gear ring 8 Mechanically export.Because between the sun gear 5 of first planet gear mechanism P1, planet carrier 7 and gear ring 8, rotating speed is interrelated, Therefore electromotor 200 can be maintained at the interval operation of economic speed, pass through continuous change first electricity in certain range of speeds The rotating speed of dynamic electromotor MG1, thus the output speed of gear ring 8 can realize electric controlling stepless variable speed with consecutive variations.Electromotor Rotating speed is decoupled with speed, makes the rotating speed of electromotor 200 be in fuel-efficient rotating speed interval all the time, and first is electronic Electromotor MG1 electricity can be used for driving the second motor generator 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.

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.

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), electric-only mode

When power drive system 1000 is in electric-only mode, electromotor 200 does not work, the first motor generator MG1 not work Make, 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.

5), 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.

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.

6) 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.

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.

7) the first power generation in parking pattern, i.e. small-power power generation in parking pattern, now the only first motor generator MG1 individually generate electricity

When power drive system 1000 is in the first power generation in parking pattern, due to parking, that is, wheel is motionless, the second planetary gear The gear ring 16 of mechanism P2 is braked, and electromotor 200 works, and the first motor generator MG1 is electromotor and the second dynamoelectric and power generation Machine MG2 does not work, and the second arrangement of clutch engages and the 3rd arrangement of clutch disconnects.

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 via power input shaft 1.

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, and thus results in the second motor generator MG2 servo-actuated.

8) the second power generation in parking pattern, i.e. high-power power generation in parking pattern, now the first motor generator MG1 and second electronic 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.

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 composition, by both having realized the single gear output of electromotor 200 to the control of two arrangement of clutch With pure electronic output, can also neatly realize input power shunt mode under hybrid power operating mode, output power divides simultaneously Stream mode and the mutual switching of composite power shunt mode.By control the second arrangement of clutch, the 3rd arrangement of clutch, first Motor generator MG1 and the different working condition of the second motor generator MG2, can be under different operating modes, for guaranteeing car load Optimal fuel economy, comfortableness or dynamic property demand are 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 With the combination of the second motor generator MG2, can at least realize above-mentioned eight kinds of mode of operations, and every kind of mode of operation is all applicable Ensure that the demand of car load optimal fuel economy, comfortableness or dynamic property in different operating modes and in this applicable working condition, thus move The structure of power drive system 1000 is simple, vdiverse in function and is applied on vehicle, can make the vehicle can when moving under each operating mode There is good fuel economy, comfortableness and dynamic property.

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.

Other referring to the power drive system 1000 describing shown in Fig. 9-Figure 12, Figure 17-Figure 20 according to the present invention Embodiment.

In second embodiment of power drive system 1000 as shown in Figure 9, power drive system 1000 includes electromotor 200th, power input shaft 1, the first motor generator MG1, the second motor generator MG2, first planet gear mechanism P1, Second planetary gears P2, power output portion 300, the second arrangement of clutch, the 3rd arrangement of clutch and the first brake unit B1. Alternatively, the first brake unit B1 can be brake.

That is, the power drive system 1000 shown in Fig. 9 increased first brake unit B1 on the basis of Fig. 1, First brake unit B1 is used for the planet carrier 7 of brake power input shaft 1 and first planet gear mechanism P1.

That is, the first brake unit B1 has braking and releases two kinds of working conditions of braking, the first brake unit B1 system When dynamic, the planet carrier 7 of power input shaft 1 and first planet gear mechanism P1 is braked simultaneously and can not rotate, the first braking When device B1 releases braking, the planet carrier 7 of power input shaft 1 and first planet gear mechanism P1 is rotatable.

Due to the power drive system 1000 shown in Fig. 9, increased the first brake unit B1, thus mode of operation there occurs change Change, specifically, the power drive system 1000 shown in Fig. 9 have the first dynamic branch pattern, the second dynamic branch pattern, 3rd dynamic branch pattern, the first electric-only mode and the second electric-only mode, the first pure fuel oil pattern and the second pure fuel oil mould Formula, the first power generation in parking pattern and the second power generation in parking pattern.

When power drive system 1000 shown in Fig. 9 is in different working modes, the kinestate of each part is as shown in table 2：

Table 2：

Wherein, the power drive system 1000 shown in Fig. 9 be in the first dynamic branch pattern, the second dynamic branch pattern, Three dynamic branch patterns, the first electric-only mode, the first pure fuel oil pattern, the second pure fuel oil pattern, the first power generation in parking mould When formula, the second power generation in parking pattern, the first brake unit B1 is in releasing on-position, remaining part (for example, two from Attach together put, two planetary gears, two motor generator, electromotors 200) work process all with shown in Fig. 1 Power drive system 1000 be in accordingly the first dynamic branch pattern, the second dynamic branch pattern, the 3rd dynamic branch pattern, Electric-only mode, the first pure fuel oil pattern, the second pure fuel oil pattern, the first power generation in parking pattern, the second power generation in parking pattern Shi Xiangtong, here no longer describes in detail.

The different from the power drive system 1000 shown in Fig. 1 of power drive system 1000 shown in Fig. 9 are described below in detail Mode of operation：

1), 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 It is motor with the second motor generator MG2, the second arrangement of clutch and the 3rd arrangement of clutch all disconnect, the first brake unit B1 brakes.

Specifically, because the effect of the first brake unit B1 is so that electromotor 200, power input shaft 1 and first planet The planet carrier 7 of gear mechanism P1 all can not rotate, and the power of the first motor generator MG1 is via first planet gear mechanism The sun gear 5 of P1 slows down and exports to the gear ring 8 of first planet gear mechanism P1, and power is input to the second planetary gear machine On the planet carrier 15 of structure P2.Because the 3rd arrangement of clutch disconnects, therefore the first motor generator MG1 and the second motor generator The power of MG2 couples in the second planetary gearsets.Obviously, the operation principle according to planetary gears, this coupling is The rotating speed (corresponding speed) of the relation of rotating speed coupling, therefore wheel is determined by the rotating speed of two motor generator, thus may be used To adopt the first electric-only mode (pure electronic mould corresponding to power drive system 1000 shown in Fig. 1 when avoiding and running at high speed Formula) when, lead to the too high problem of the second motor generator MG2 rotating speed.Therefore described second electric-only mode is preferably applicable In pure electric high-speed operating mode.As shown in fig. 13 that in the 3rd embodiment of power drive system 1000, power drive system 1000 include electromotor 200, power input shaft 1, the first motor generator MG1, the second motor generator MG2, the first row Star gear mechanism P1, the second planetary gears P2, power output portion 300, the second arrangement of clutch, the 3rd arrangement of clutch and Second brake unit B2.Alternatively, the second brake unit B2 can be brake.

That is, the power drive system 1000 shown in Figure 13 increased second brake unit on the basis of Fig. 1 B2, the second brake unit B2 is used for braking the gear ring 8 of first planet gear mechanism P1 and the row of the second planetary gears P2 Carrier 15 is that is to say, that the second brake unit B2 has braking and releases two kinds of working conditions of braking, the second brake unit During B2 braking, the planet carrier 15 of the gear ring 8 of first planet gear mechanism P1 and the second planetary gears P2 is made simultaneously Dynamic can not rotate, when the second brake unit B2 releases braking, the gear ring 8 of first planet gear mechanism P1 and the second planet The planet carrier 15 of gear mechanism P2 is rotatable.

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

Due to the power drive system 1000 shown in Figure 13, increased the second brake unit B2, thus mode of operation there occurs Change, specifically, the power drive system 1000 shown in Figure 13 has the first dynamic branch pattern, the second dynamic branch mould Formula, the 3rd dynamic branch pattern, series model, the first electric-only mode and the second electric-only mode, the first pure fuel oil pattern With the 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 shown in Figure 13 is in different working modes, the kinestate of each part is as shown in table 3：

Table 3：

Wherein, the power drive system 1000 shown in Figure 13 be in the first dynamic branch pattern, the second dynamic branch pattern, 3rd dynamic branch pattern, the second electric-only mode, the first pure fuel oil pattern, the second pure fuel oil pattern, the second power generation in parking During pattern, the second brake unit B2 is in releasing on-position, remaining part (for example, two arrangement of clutch, two planets Gear mechanism, two motor generator, electromotors 200) work process all with the power drive system 1000 shown in Fig. 1 Be in accordingly the first dynamic branch pattern, the second dynamic branch pattern, the 3rd dynamic branch pattern, electric-only mode, Identical when one pure fuel oil pattern, the second pure fuel oil pattern, the second power generation in parking pattern, here no longer describes in detail.

The different from the power drive system 1000 shown in Fig. 1 of power drive system 1000 shown in Figure 13 are described below in detail Mode of operation：

1), 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, the second braking Device 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 the second brake unit B2, the second motor generator MG2's is dynamic Power exports power main to first after the second planetary gears P2 slows down from the gear ring 16 of the second planetary gears P2 Moving gear 17 simultaneously passes to wheel driving via 18, two grades of driving gears 20 of the first driven gear, differential mechanism driven gear 21 Wheel operates.Under this pattern, the rotating speed of the second motor generator MG2 have passed through three-level and slows down, and speed ratio is relatively large, is suitable for In starting or in run at a low speed.That is, the power drive system 1000 shown in Figure 13, when increased pure motorized motions Low gear.

2) 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, the second brake unit B2 braking.

Because the second brake unit B2 is braked, thus the gear ring 8 of first planet gear mechanism P1 is braked to can not rotate, Electromotor 200 power is rotated by the planet carrier 7 that power input shaft 1 drives first planet gear mechanism P1, and through first The one-level speedup of planetary gears P1 drives the first motor generator MG1 to generate electricity, for driving power drive system 1000 Electrokinetic cell supplements electricity.Economic zone rotating speed in view of the rotating ratio electromotor 200 of the generating high efficiency range of motor generator High, this power drive system 1000 is set to the planet carrier 7 that electromotor 200 accesses first planet gear mechanism P1, and The rotor R 1 of the first motor generator MG1 is then set to the sun gear 5 that rigidity connects firmly first planet gear mechanism P1, passes through The speed ratio relation of first planet gear mechanism P1 understands, above-mentioned annexation can meet the first motor generator MG1 with speedup Speed demand.Again because the second brake unit B2 brakes the planet carrier 15 of the second planetary gears P2 to can not rotate, Second motor generator MG2 can participate in driving, and the speed ratio relation now by the second planetary gears P2 understands, above-mentioned Annexation can be slowed down, and meets the demand of vehicle traction moment of torsion.

3) 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, the second brake unit B2 braking.

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, because the second brake unit B2 is braked, i.e. the gear ring of first planet gear mechanism P1 8 are braked, the rotor R 1 with the rigidly connected first motor generator MG1 of sun gear 5 of first planet gear mechanism P1 Driven by speedup (speed ratio is suitable) and generate electricity, be that system supplements energy.

In power drive system 1000 as shown in figure 17, power drive system 1000 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, power output portion 300, the second arrangement of clutch, the 3rd arrangement of clutch, the first brake unit B1 and the second brake unit B2.

That is, the power drive system 1000 shown in Figure 17 includes the first brake unit B1 and the second brake unit simultaneously B2, and the first brake unit B1 and the second brake unit B2 can not brake simultaneously, thus the power drive system shown in Figure 17 1000 mode of operation contains the power drive system 1000 shown in power drive system 1000 and Figure 13 shown in Fig. 9 All working pattern.

Further, as shown in Fig. 1-Figure 20, 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.

More specifically, as shown in Fig. 1-Figure 20, the gear ring 16 with the second planetary gears P2 in power output portion 300 Connected part (such as Fig. 1-Fig. 4, Fig. 9-Figure 10, the first driving gear in Figure 13 and Figure 14, Figure 17 and Figure 18 Drivewheel in 17 or Fig. 5-Fig. 8, Figure 11 and Figure 12, Figure 15 and Figure 16) upper in the axial direction of power input shaft 1 Between electromotor 200 and the second planetary gears P2, thereby further ensure that differential mechanism 100 is horizontal close to car load To turning on centrage.Further, the two grades of driving gears 20 engaging with differential mechanism driven gear 21 are located remotely from electromotor 200 side, thus further ensured that differential mechanism 100 close to car load laterally to turning on centrage.

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.

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, the One arrangement of clutch C1 is located between the bent axle of electromotor 200 and power input shaft 1, by arranging the first arrangement of clutch C1, When not needing electromotor 200 work, it is to avoid so that the bent axle of electromotor 200 is sent out during the first motor generator MG1 power output The servo-actuated phenomenon of life, it is to avoid unnecessary energy loss, is conducive to lifting the work efficiency of power drive system 1000.Optional Ground, the first arrangement of clutch C1 is first clutch.

Power drive system 1000 according to embodiments of the present invention, in the first motor generator MG1, first planet gear mechanism P1, the annexation of the second motor generator MG2, the second planetary gears P2 and power output portion 300 and work On the basis of making state, the first arrangement of clutch C1 is set between the bent axle and power input shaft 1 of electromotor 200, not only real Showed multiple different mode of operations, and each mode of operation be applied to different operating modes, and ensure that splendid fuel economy and Comfortableness, and mode switching structure is simple, also when not needing electromotor 200 work, it is to avoid the first motor generator MG1 Servo-actuated phenomenon in the bent axle making electromotor 200 during power output, it is to avoid unnecessary energy loss there is, is conducive to lifting dynamic The work efficiency of power drive system 1000.

It is with the difference of the embodiment shown in Fig. 2 in embodiment as shown in figure 21, first the first actuated element is first The planet carrier 7 of planetary gears P1, second the first actuated element is the sun gear 5 of first planet gear mechanism P1, the Three the first actuated elements are the gear ring 8 of first planet gear mechanism P1；First the second actuated element is the second planetary gear The planet carrier 15 of mechanism P2, second the second actuated element is the sun gear 13 of the second planetary gears P2, the 3rd Two actuated elements are the gear ring 16 of the second planetary gears P2, those skilled in the art can according in foregoing description to Fig. 1 The mode of operation of power drive system 1000 derive the mode of operation of the power drive system 1000 shown in Figure 21, here No longer describe in detail.

It is with the difference of the embodiment shown in Fig. 2 in embodiment as shown in figure 22, first the first actuated element is first The sun gear 5 of planetary gears P1, second the first actuated element is the planet carrier 7 of first planet gear mechanism P1, the Three the first actuated elements are the gear ring 8 of first planet gear mechanism P1；First the second actuated element is the second planetary gear The sun gear 13 of mechanism P2, second the second actuated element is the planet carrier 15 of the second planetary gears P2, the 3rd Two actuated elements are the gear ring 16 of the second planetary gears P2, those skilled in the art can according in foregoing description to Fig. 1 The mode of operation of power drive system 1000 derive the mode of operation of the power drive system 1000 shown in Figure 22, here No longer describe in detail.

It is with the difference of the embodiment shown in Fig. 2 in embodiment as shown in figure 23, first the first actuated element is the The planet carrier 7 of one planetary gears P1, second the first actuated element is the sun gear 5 of first planet gear mechanism P1, 3rd the first actuated element is the gear ring 8 of first planet gear mechanism P1；First the second actuated element is the second planet tooth The sun gear 13 of wheel mechanism P2, second the second actuated element is the planet carrier 15 of the second planetary gears P2, the 3rd Second actuated element is the gear ring 16 of the second planetary gears P2, and those skilled in the art can be according to right in foregoing description The mode of operation of the power drive system 1000 of Fig. 1 derives the mode of operation of the power drive system 1000 shown in Figure 23, Here no longer describes in detail.

It is with the difference of the embodiment shown in Fig. 2 in embodiment as of fig. 24, first the first actuated element is the The gear ring 8 of one planetary gears P1, second the first actuated element is the planet carrier 7 of first planet gear mechanism P1, the Three the first actuated elements are the sun gear 5 of first planet gear mechanism P1；First the second actuated element is the second planet tooth The planet carrier 15 of wheel mechanism P2, second the second actuated element is the sun gear 13 of the second planetary gears P2, the 3rd Second actuated element is the gear ring 16 of the second planetary gears P2, and those skilled in the art can be according to right in foregoing description The mode of operation of the power drive system 1000 of Fig. 1 derives the mode of operation of the power drive system 1000 shown in Figure 24, Here no longer describes in detail.

It is with the difference of the embodiment shown in Fig. 2 in embodiment as shown in figure 25, first the first actuated element is the The sun gear 5 of one planetary gears P1, second the first actuated element is the planet carrier 7 of first planet gear mechanism P1, 3rd the first actuated element is the gear ring 8 of first planet gear mechanism P1；First the second actuated element is the second planet tooth The planet carrier 15 of wheel mechanism P2, second the second actuated element is the gear ring 16 of the second planetary gears P2, the 3rd the Two actuated elements are the sun gear 13 of the second planetary gears P2, and those skilled in the art can be according to right in foregoing description The mode of operation of the power drive system 1000 of Fig. 1 derives the mode of operation of the power drive system 1000 shown in Figure 25, Here no longer describes in detail.

It is with the difference of the embodiment shown in Fig. 2 in embodiment as shown in figure 26, first the first actuated element is the The gear ring 8 of one planetary gears P1, second the first actuated element is the planet carrier 7 of first planet gear mechanism P1, the Three the first actuated elements are the sun gear 5 of first planet gear mechanism P1；First the second actuated element is the second planet tooth The planet carrier 15 of wheel mechanism P2, second the second actuated element is the gear ring 16 of the second planetary gears P2, the 3rd the Two actuated elements are the sun gear 13 of the second planetary gears P2, and those skilled in the art can be according to right in foregoing description The mode of operation of the power drive system 1000 of Fig. 1 derives the mode of operation of the power drive system 1000 shown in Figure 26, 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 annexation of the second motor generator MG2, the second planetary gears P2 and power output portion 300 And on the basis of working condition, creatively arrange the first motor generator MG1, first planet gear mechanism P1, second The position of motor generator MG2, the second planetary gears P2 and power output portion 300, not only achieve multiple not Same mode of operation, 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, and structure is simply easily real Existing.

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, term " installation ", " being connected ", " connection ", etc. term 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；

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 is it is characterised in that the bent axle of described electromotor and described power It is provided with the first arrangement of clutch between input shaft.

4. the power drive system according to Claims 2 or 3 is it is characterised in that described power input shaft passes through second The arrangement of clutch optionally rotor synchronous axial system with described first motor generator,

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.

5. power drive system according to claim 4 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；

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；

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.

6. power drive system according to claim 4 it is characterised in that described power drive system have pure electronic Pattern；

When described power drive system is in electric-only mode, described electromotor does not work, described first motor generator not work Make, described second motor generator is motor, described second arrangement of clutch disconnects and described 3rd arrangement of clutch engages.

7. power drive system according to claim 4 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；

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.

8. power drive system according to claim 4 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 Close means for engaging and described 3rd arrangement of clutch disconnects；

When described power drive system is in the second power generation in parking pattern, described electromotor work, described second planetary gear machine The gear ring braking of structure, described first motor generator and described second motor generator are electromotor, described second clutch dress Put joint and described 3rd arrangement of clutch disconnects.

9. power drive system according to claim 4 is it is characterised in that described second planetary gears, described Second motor generator, described 3rd arrangement of clutch, described first planet gear mechanism, described first motor generator and institute The distance stating the second arrangement of clutch with described electromotor increases successively.

10. power drive system according to claim 2 is it is characterised in that also include the first brake unit and/or Two brake units, described first brake unit is used for braking described power input shaft and the planet of described first planet gear mechanism Frame, described second brake unit is used for braking the gear ring of described first planet gear mechanism and described second planetary gears Planet carrier.

11. power drive systems according to claim 10 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 Dynamic；

12. power drive systems according to claim 11 it is characterised in that described power drive system include described First brake unit and described power drive system has the first dynamic branch pattern, the second dynamic branch pattern and the 3rd power Shunt mode；

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 first 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 first 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 first brake unit releases braking.

13. power drive systems according to claim 11 it is characterised in that described power drive system include described First brake unit and described power drive system has the first electric-only mode 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 disconnects and described 3rd arrangement of clutch engages, Described first brake unit releases braking；

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

14. power drive systems according to claim 11 it is characterised in that described power drive system include described First brake unit and described power drive system has the 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, and described first Brake unit 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 disconnects and described 3rd arrangement of clutch Engage, described first brake unit releases braking.

15. power drive systems according to claim 11 it is characterised in that described power drive system include described First brake unit and described power drive system has the first power generation in parking pattern 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 Close means for engaging and described 3rd arrangement of clutch disconnects, described first brake unit releases 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 first brake unit releases braking.

16. power drive systems according to claim 11 it is characterised in that described power drive system include described Second brake unit and described power drive system has the first dynamic branch pattern, the second dynamic branch pattern and the 3rd power Shunt mode；

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 second 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 second 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 3rd arrangement of clutch all disconnect, and described second brake unit releases braking.

17. power drive systems according to claim 11 it is characterised in that described power drive system include described Second brake unit and described power drive system has series model；

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 second system Dynamic device braking.

18. power drive systems according to claim 11 it is characterised in that described power drive system include described Second brake unit and described power drive system has the first electric-only mode 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 second 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 second brake unit releases braking.

19. power drive systems according to claim 11 it is characterised in that described power drive system include described Second brake unit and described power drive system has the 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, and described second Brake unit 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 second brake unit releases braking.

20. power drive systems according to claim 11 it is characterised in that described power drive system include described Second brake unit and described power drive system has the first power generation in parking pattern 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 second 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 second brake unit releases braking.

21. power drive systems according to claim 11 are it is characterised in that described second arrangement of clutch and described Three arrangement of clutch are clutch；Or

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

22. power drive systems according to claim 11 are it is characterised in that described second planetary gears, institute State the second motor generator, described 3rd arrangement of clutch, described first planet gear mechanism, described first motor generator and Second arrangement of clutch is increased successively with the distance of described electromotor.

23. power drive systems according to claim 1 or 10 are it is characterised in that described power output portion is single-stage Reducing gear, two reduction gear or infinite speed reduction mechanism.

24. power drive systems according to claim 23 it is characterised in that described power output portion with described The part that the gear ring of two planetary gears is connected is located axially at described electromotor and described second planet in power input shaft Between gear mechanism.

25. power drive systems according to claim 23 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.

26. power drive systems according to claim 4 or 11 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 synchronously turn Dynamic；

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.

27. power drive systems according to claim 4 or 11 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 synchronously turn Dynamic；

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.

28. power drive systems according to claim 4 or 11 are it is characterised in that described second planetary gears Planet carrier pass through the gear ring rigidity of the 3rd input shaft on described power input shaft for the empty set and described first planet gear mechanism Connect, described second input shaft empty set is on described 3rd input shaft.

A kind of 29. vehicles are it is characterised in that include the power drive system according to any one of claim 1-28.