CN104786816A

CN104786816A - Power transmission system used in vehicle and vehicle having same

Info

Publication number: CN104786816A
Application number: CN201510024314.XA
Authority: CN
Inventors: 杨冬生; 廉玉波; 张金涛; 罗红斌
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2015-01-16
Filing date: 2015-01-16
Publication date: 2015-07-22
Anticipated expiration: 2035-01-16
Also published as: CN104786816B

Abstract

The invention discloses a power transmission system and a vehicle. The power transmission system comprises an engine, a plurality of input shafts, a plurality of output shafts, a motor power shaft and a first motor-generator, wherein the engine is arranged to be connected with at least one of the plurality of input shafts selectively, and each input shaft is provided with a shift driving gear; each output shaft is provided with a shift driven gear which is meshed with the corresponding shift driving gear; the motor power shaft is arranged to be linked with one of the output shafts; the first motor-generator is arranged to be linked with the motor power shaft, wherein when the motor power shaft is linked with one of the output shafts, the first motor-generator can generate power in running and parking of the vehicle by making use of at least part of power output by the engine. By adopting the power transmission system, transmission modes are enriched, and multiple working conditions of charging in parking, charging for the engine when the engine performs driving and the like can be realized.

Description

For vehicle power drive system and there is its vehicle

Technical field

The present invention relates to a kind of power drive system for vehicle and there is the vehicle of this power drive system.

Background technology

Along with the continuous consumption of the energy, the development and utilization of new forms of energy vehicle becomes a kind of trend gradually.Hybrid vehicle, as the one in new forms of energy vehicle, is driven by driving engine and/or motor, has various modes, can improve driving efficiency and fuel economy.

But in correlation technique known for inventor, the power drive system general structure in hybrid vehicle is complicated, and transmission mode is few, and driving efficiency is on the low side.Such as, for most hybrid vehicle, it often realizes process of charging when driving, and charge mode, charge path etc. are comparatively single, and charge efficiency is poor.

Summary of the invention

The present invention is intended to solve one of above-mentioned technical matters of the prior art at least to a certain extent.

The present invention proposes a kind of power drive system for vehicle, this power drive system has abundant transmission mode.

The invention allows for a kind of vehicle, this vehicle comprises above-mentioned power drive system.

According to the power drive system of the embodiment of the present invention, comprising: driving engine; Multiple input shaft, described driving engine is arranged to optionally engage at least one in described multiple input shaft, and each described input shaft is provided with gear driving gear; Multiple output shaft, each described output shaft is provided with gear driven gear, and described gear driven gear engages accordingly with described gear driving gear; Motor mechanical axis, described motor mechanical axis is arranged to link with in described output shaft; And first dynamotor, described first dynamotor is arranged to link with described motor mechanical axis, described one when linking wherein in described motor mechanical axis and described output shaft, described first dynamotor can utilize at least part of power of exporting from described driving engine described vehicle travel and parking time generate electricity.

According to the power drive system of the embodiment of the present invention, enrich transmission mode, the various working such as parking charging and the driving limit charging of driving engine limit can have been realized.

The vehicle of embodiment according to a further aspect of the present invention, comprises the power drive system in above-described embodiment.

Accompanying drawing explanation

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

Fig. 2 is the schematic diagram of the power drive system according to another embodiment of the present invention;

Fig. 3 is the schematic diagram of power drive system in accordance with another embodiment of the present invention;

Fig. 4 is the schematic diagram of the power drive system according to another embodiment of the present invention;

Fig. 5 is the schematic diagram of the power drive system according to another embodiment of the present invention;

Fig. 6 is the schematic diagram of change-speed box according to an embodiment of the invention.

Detailed description of the invention

Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.

In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " cw ", orientation or the position relationship of the instruction such as " conter clockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.

In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrically connected maybe can communicate with one another; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.

Below in conjunction with Fig. 1-Fig. 5, the power drive system 100 according to the embodiment of the present invention is described in detail, this power drive system 100 is applicable in the vehicle of such as hybrid vehicle, and as the power system of vehicle, for normal vehicle operation provides sufficient power and electric energy.

Power drive system 100 according to the embodiment of the present invention mainly comprises two large divisions, one can be propulsion source, propulsion source can be driving engine 4, dynamotor etc., it two can be change-speed box 101 (as shown in Figure 6), change-speed box 101, for realizing the speed changing function to propulsion source outputting power, meets vehicle driving requirements or charging requirement etc.

Such as, in certain embodiments, as Figure 1-Figure 5, power drive system 100 can comprise driving engine 4, first dynamotor 51 and change-speed box 101, but is not limited thereto.

Shown in composition graphs 1, in certain embodiments, change-speed box 101 mainly comprises multiple input shaft (such as, first input shaft 11, second input shaft 12), multiple output shaft (such as, first output shaft 21, second output shaft 22) and motor mechanical axis 3 and each axle on associated gear and shifting element (e.g., synchro).

When carrying out transmission of power between driving engine 4 and input shaft, driving engine 4 is arranged to optionally engage at least one in multiple input shaft.In other words, such as, when driving engine 4 is to input shaft transmission power, driving engine 4 optionally can engage to transmit power with in multiple input shaft, or driving engine 4 can also optionally engage to transmit power with two or more input shafts in multiple input shaft simultaneously.

Such as, in the example of Fig. 1-Fig. 5, multiple input shaft can comprise the first input shaft 11 and the second input shaft 12 two input shafts, and driving engine 4 optionally can engage to transmit power with one of the first input shaft 11 and second input shaft 12.Or especially, driving engine 4 can also engage to transmit power with the first input shaft 11 and the second input shaft 12 simultaneously.Certainly, should be understood that, driving engine 4 also can disconnect with the first input shaft 11 and the second input shaft 12 simultaneously.

For the ordinary skill in the art, driving engine 4 is relevant with the concrete operating mode of power drive system 100 to the engagement state of input shaft, and this will describe in detail below in conjunction with specific embodiments, no longer describes in detail here.

Transmission can be carried out by shift gear pair between input shaft and output shaft.Such as, each input shaft is provided with gear driving gear, each output shaft is provided with gear driven gear, gear driven gear engages accordingly with gear driving gear, thus forms the different gear pair of multipair speed ratio.

In some embodiments of the invention, change-speed box 101 can be six forward gear change-speed boxs 101, namely has first gear pair, second gear is secondary, three gear gear pairs, four keep off gear pairs, five gear gear pairs and six keep off gear pairs.But the present invention is not limited to this, for the ordinary skill in the art, can increase or reduce the number of shift gear pair by comformability according to transmission needs, be not limited to six gear transmissions shown in the embodiment of the present invention.

As Figure 1-Figure 5, motor mechanical axis 3 be arranged to can with in output shaft (such as, second output shaft 22) link, linked by motor mechanical axis 3 and described in output shaft, thus power can transmit between described in motor mechanical axis 3 and output shaft.Such as, power (power that Tathagata exports from driving engine 4) through this output shaft is exportable gives motor mechanical axis 3, or also exportable to this output shaft through the power (power as exported from the first dynamotor 51) of motor mechanical axis 3.

It should be noted that, above-mentioned " interlock " can be understood as multiple parts (such as, two) coupled movements, and for two parts interlocks, wherein during a component movement, another parts also move thereupon.

Such as, in some embodiments of the invention, gear and axle link and can be understood as is also will rotate when gear rotates, with the axle of its interlock, or also will rotate when this axle rotates, with the gear of its interlock.

And for example, axle and axle link can be understood as and are when an axle rotates wherein, also will rotate with another root axle of its interlock.

For another example, gear and gear-linked can be understood as is also will rotate when a gear rotates wherein, with another gear of its interlock.

Under the invention in the description of face about " interlock ", if there is no specified otherwise, be all understood in this way.

Similarly, the first dynamotor 51 is arranged to link with motor mechanical axis 3.Such as, the first dynamotor 51, can by the Power output of generation to motor mechanical axis 3 when working as electrical motor.And for example, when the first dynamotor 51 is as generator operation, the power through motor mechanical axis 3 can export the first dynamotor 51 to, thus drives the first dynamotor 51 to generate electricity.

Here, need to illustrate a bit, in the description of the present invention about " dynamotor ", if do not have specified otherwise, it is the motor with electrical generator and motor function that this dynamotor can be understood as.

As mentioned above, motor mechanical axis 3 can link with described (such as the second output shaft 22) in output shaft, especially, described one when linking in motor mechanical axis 3 with this output shaft, the first dynamotor 51 can utilize at least part of power of exporting from driving engine 4 vehicle travel and parking time generate electricity.

In other words, vehicle be in motoring condition and motor mechanical axis 3 with in this output shaft described one link time, at least part of power of driving engine 4 can by exporting the first dynamotor 51 to after this output shaft, motor mechanical axis 3, thus drive the first dynamotor 51 to generate electricity, realize driving limit, driving engine 4 limit charging operating mode.And when vehicle is in parking (vehicle stops but driving engine 4 is still in running order) state and motor mechanical axis 3 links with in this output shaft, at least part of power of driving engine 4 can by exporting the first dynamotor 51 to after this output shaft, motor mechanical axis 3, thus drive the first dynamotor 51 to generate electricity, realize parking charge function (i.e. " STOP " charging).

Need to illustrate a bit, in describing the invention, motor mechanical axis 3 can be the motor shaft of the first dynamotor 51 self.Certainly, be understandable that, the motor shaft of motor mechanical axis 3 and the first dynamotor 51 also can be two independent axles.

Thus, according to the power drive system 100 of the embodiment of the present invention, charge function can be realized when vehicle traveling and parking, enrich charge mode, at least to some extent solved the problems such as existing power drive system charging modes is single, charge efficiency is low.In brief, driving charging can be realized according to the power drive system 100 of the embodiment of the present invention and parking is charged two class charge modes.

Below change-speed box 101 part composition graphs 1-Fig. 6 of power drive system 100 is described in detail.

In certain embodiments, as shown in figs 1 to 6, described one (such as, the second output shaft 22) in the relative output shaft of efferent 221 can rotate by differential, and in other words, efferent 221 independently can rotate with different rotating speeds from this output shaft.

Further, efferent 221 be arranged to optionally to engage in output shaft described one to rotate with this output shaft synchronous, in other words, efferent 221 can rotate or synchronous axial system by differential relative to this output shaft.In brief, described one of the relative output shaft of efferent 221 can engage with synchronous axial system, certainly also can disconnect and rotating with differential.

As shown in figs 1 to 6, this efferent 221 can empty set be arranged in output shaft on described one, but is not limited thereto.Such as in the example of Fig. 1-Fig. 5, this efferent 221 empty set is on the second output shaft 22, and namely efferent 221 can rotate with different rotating speed differentials from the second output shaft 22.

As mentioned above, efferent 221 can with a described synchronous axial system of output shaft, such as, the synchronous effect of efferent 221 and this output shaft can be realized when needed by setting up corresponding synchro.This synchro can be efferent synchro 221c, and efferent synchro 221c is arranged for described one in synchronism output portion 221 and output shaft.

Particularly, efferent synchro 221c can be arranged on output shaft described one upper and at least for engaging efferent 221, that is, shown in composition graphs 1, when efferent synchro 221c is in off-state, efferent 221 can rotate with different rotating speed differentials from the second output shaft 22, and when efferent synchro 221c is in the state engaging efferent 221, efferent 221 and the second output shaft 22 can synchronous axial system.

In specific embodiments more of the present invention, efferent 221 can be empty set output gear, this empty set output gear 221 empty set on described one of output shaft, this empty set output gear 221 can with main reduction gear driven gear 74 engaged transmission.Accordingly, in this embodiment, efferent synchro 221c is then empty set output gear synchro 221c, and empty set output gear synchro 221c is used for described one (as the second output shaft 22) of synchronous empty set output gear 221 and output shaft.

In the following description, for empty set output gear 221 be efferent 221, empty set output gear synchro 221c carries out signal explanation for efferent synchro 221c, but can not be interpreted as it is that one to scope limits.

Fixing output gear 211 is described below, fixing output gear 211 is fixedly installed on remaining output shaft, such as in an embodiment of the present invention, output shaft comprises the first output shaft 21 and the second output shaft 22, efferent 221 can empty set on the second output shaft 22, fixing output gear 211 can be fixed on the first output shaft 21, but is not limited thereto.

Below in conjunction with Fig. 1-Fig. 6, the linked manner of described of motor mechanical axis 3 and output shaft is described in detail.

In some embodiments of the invention, described one of motor mechanical axis 3 and output shaft is linked by gear pair.Simple, the reliable transmission of structure thus.This gear pair can comprise two gears be engaged with each other, i.e. motor gear 73 and motor power shaft gear 31.

Specifically, motor gear 73 is fixedly installed on described one of output shaft, namely motor gear 73 be fixed on efferent 221 can on the output shaft of differential and synchronous axial system.Such as motor gear 73 can be fixed on the second output shaft 22, but is not limited thereto.Motor mechanical axis 3 is provided with motor power shaft gear 31, motor power shaft gear 31 is arranged to and motor gear 73 engaged transmission, and namely power can transmit between motor power shaft gear 31 and motor gear 73.

Below the structure of reversing gear of the power drive system 100 according to the embodiment of the present invention is described in detail in conjunction with specific embodiments.

Structure of reversing gear comprises reverse output gear 72, reverse output gear 72 is arranged to link with one of them gear driving gear (such as two keep off driving gear 2a) or to disconnect, when reverse output gear 72 links with this gear driving gear, the exportable power that reverses gear from driving engine 4 and/or the first dynamotor 51 of reverse output gear 72, when reverse output gear 72 disconnects with this gear driving gear, reverse output gear 72 does not export the power that reverses gear.

Further, structure of reversing gear also comprises reverse idler gear (such as comprising the first reverse idler gear 711, second reverse idler gear 712 and the 3rd reverse idler gear 713), and reverse output gear 72 is optionally linked with above-mentioned gear driving gear by this reverse idler gear.

Specifically, reverse idler gear is arranged to link with one of them gear driving gear described, reverse output gear 72 is arranged to optionally link with reverse idler gear, in other words, when reverse output gear 72 links with reverse idler gear, the power that reverses gear from driving engine 4 and/or the first dynamotor 51 externally can export from reverse output gear 72, and when reverse output gear 72 is in off-state with reverse idler gear, reverse output gear 72 does not externally export the power that reverses gear.

In a further embodiment, reverse output gear 72 is undertaken synchronous with reverse idler gear by reverse gear synchronizer 72c.Specifically, reverse gear synchronizer 72c is arranged to optionally synchronous reverse output gear 72 and can links with reverse idler gear to make reverse output gear 72 with reverse idler gear.Such as, when reverse gear synchronizer 72c is in engagement state, reverse output gear 72 and reverse idler gear link, and when reverse gear synchronizer 72c is in off-state, reverse output gear 72 and reverse idler gear can rotate by differential.

As preferred embodiment, reverse gear synchronizer 72c and efferent synchro 221c shares same shifting fork mechanism, and when when the synchronous reverse output gear of reverse gear synchronizer 72c 72 and reverse idler gear, efferent synchro 221c is in off-state, in efferent synchro 221c synchronism output portion 221 with output shaft described one, reverse gear synchronizer 72c is in off-state.The embodiment of composition graphs 1, when the sliding hub of reverse gear synchronizer 72c engages the 3rd reverse idler gear 713 to the right, efferent synchro 221c is in off-state, and when the sliding hub of efferent synchro 221c engages efferent 221 left, reverse gear synchronizer 72c is in off-state.

Thus, just can control reverse gear synchronizer 72c by same shifting fork mechanism and efferent synchro 221c carries out action, decrease the quantity of shifting fork mechanism, simplify the control policy of change-speed box 101, make that the volume of change-speed box 101 is less, more compact structure simultaneously, be convenient to be arranged on car load.

For reverse idler gear, in some instances, as Figure 1-Figure 5, it can comprise the first reverse idler gear 711, second reverse idler gear 712 and the 3rd reverse idler gear 713.Particularly, the first reverse idler gear 711 is arranged to engage with described one of them gear driving gear (such as two keep off driving gear 2a), and the first reverse idler gear 711 and equidirectional, the same rotational speed of the second reverse idler gear 712.Second reverse idler gear 712 engages with the 3rd reverse idler gear 713, and reverse gear synchronizer 72c is arranged for optionally synchronous reverse output gear 72 and the 3rd reverse idler gear 713.

In a further embodiment, reverse output gear 72 and the 3rd reverse idler gear 713 coaxially arranged, and reverse gear synchronizer 72c be arranged in reverse output gear 72 and the 3rd reverse idler gear 713 one upper and for engaging another.Composition graphs 1-Fig. 5, reverse output gear 72 and the 3rd reverse idler gear 713 all empty set, on motor mechanical axis 3, thus, can omit reverse gear shaft, make the more compact structure of change-speed box 101.Wherein, reverse gear synchronizer 72c can be arranged on reverse output gear 72 and for engaging the 3rd reverse idler gear 713, but is not limited thereto.

As shown in figs 1 to 6, the first reverse idler gear 711 and the second reverse idler gear 712 into a single integrated structure with formed connection gear, the axial dimension of the first reverse idler gear 711 and the second reverse idler gear 712 can be reduced thus, be convenient to arrange.

Embodiment below in conjunction with Fig. 1-Fig. 6 is described in detail input shaft, output shaft and each shift gear.

In some embodiments of the present invention, as shown in figs 1 to 6, input shaft can be two, namely input shaft comprises the first input shaft 11 and the second input shaft 12, second input shaft 12 can be hollow shaft, and the first input shaft 11 can be solid axle, and a part for the first input shaft 11 can be embedded in the second hollow input shaft 12, another part of first input shaft 11 can be protruding vertically in the second input shaft 12, and the first input shaft 11 and the second input shaft 12 can be coaxially arranged.

Output shaft can be two, and namely the first output shaft 21 and the second output shaft 22, first output shaft 21 and the second output shaft 22 are arranged in parallel with input shaft, and the first output shaft 21 and the second output shaft 22 can be solid axle.

Six advance gears can be had according to the power drive system 100 of the embodiment of the present invention, particularly, first input shaft 11 can be arranged odd number gear driving gear, second input shaft 12 can be arranged even number gear driving gear, thus the first input shaft 11 is responsible for the transmission of power of odd number shift gear pair, the second input shaft 12 is responsible for the transmission of power of even number shift gear pair.

More specifically, as Figure 1-Figure 5, first input shaft 11 can be furnished with a gear driving gear 1a, three gear driving gear 3a and five gear driving gear 5a, second input shaft 12 can be furnished with two gear driving gear 2a, four or six gear driving gear 46a, each gear driving gear is all with the input shaft synchronous axial system of correspondence.

Accordingly, first output shaft 21 is provided with a gear driven gear 1b, two gear driven gear 2b, three gear driven gear 3b and four gear driven gear 4b, second output shaft 22 is provided with five gear driven gear 5b and six gear driven gear 6b, the equal empty set of each driven gear is on the output shaft of correspondence, and namely each driven gear can rotate by differential relative to the output shaft of correspondence.

Wherein, one gear driven gear 1b and keeps off driving gear 1a and engages thus form first gear pair, two gear driven gear 2b and two keep off driving gear 2a and engage thus form second gear pair, three gear driven gear 3b and three keep off driving gear 3a and engage thus form three and keep off gear pair, four gear driven gear 4b and four or six keep off driving gear 46a and engage thus form four and keep off gear pair, five gear driven gear 5b and five keep off driving gear 5a and engage thus form five and keep off gear pair, and six keep off driven gear 6b and four or six keeps off driving gear 46a and engage thus form six and keep off gear pair.

Because four gear gear pairs and six gear gear pairs share four or six gear driving gear 46a, therefore can reduce by a driving gear, such that the structure of power drive system 100 is compacter, size is less, be convenient to arrange.

Owing to being empty set structure between driven gear and output shaft, therefore needing, synchro is set and carries out synchronous to corresponding driven gear with output shaft, to realize the output of power.

In certain embodiments, shown in composition graphs 1-Fig. 5, power drive system 100 comprises one or three gear synchro 13c, two or four gear synchro 24c, five or six gear synchro 56c.

As shown in Figure 1, one or three gear synchro 13c to be arranged on the first output shaft 21 and to keep off between driven gear 3b at a gear driven gear 1b and three, one gear driven gear 1b or three gear driven gear 3b can engage with the first output shaft 21 by one or three gear synchro 13c, thus enables this driven gear and output shaft synchronous axial system.

Such as, shown in composition graphs 1, the sliding hub of one or three gear synchro 13c is moved to the left and three gear driven gear 3b can be engaged with the first output shaft 21, thus three gear driven gear 3b and the first output shaft 21 can synchronous axial system.The sliding hub of one or three gear synchro 13c moves right and a gear driven gear 1b can be engaged with the first output shaft 21, thus a gear driven gear 1b and the first output shaft 21 can synchronous axial system.

As shown in Figure 1, similarly, two or four gear synchro 24c to be arranged on the first output shaft 21 and to keep off between driven gear 4b at two gear driven gear 2b and four, two gear driven gear 2b or four gear driven gear 4b can engage with the first output shaft 21 by two or four gear synchro 24c, thus enable this driven gear and output shaft synchronous axial system.

Such as, shown in composition graphs 1, the sliding hub of two or four gear synchro 24c is moved to the left and two gear driven gear 2b can be engaged with the first output shaft 21, thus two gear driven gear 2b and the first output shaft 21 synchronous axial system.The sliding hub of two or four gear synchro 24c moves right and four gear driven gear 4b can be engaged with the first output shaft 21, thus four gear driven gear 4b and the first output shaft 21 synchronous axial system.

As shown in Figure 1, similarly, five or six gear synchro 56c are arranged on the second output shaft 22, five or six gear synchro 56c are between five gear driven gear 5b and six gear driven gear 6b, five or six gear synchro 56c are used for five gear driven gear 5b or six gear driven gear 6b to engage with the second output shaft 22, such as the sliding hub of five or six gear synchro 56c moves right, then five gear driven gear 5b can be engaged with the second output shaft 22, thus five gear driven gear 5b and the second output shaft 22 synchronous axial system, the sliding hub of five or six gear synchro 56c is moved to the left, then six gear driven gear 6b can be engaged with the second output shaft 22, thus six gear driven gear 6b and the second output shaft 22 synchronous axial system.

In some embodiments of the invention, can transmission of power be carried out by double-clutch 2d or be separated between the first input shaft 11 of driving engine 4 and change-speed box 101 and the second input shaft 12.

Shown in Fig. 1-Fig. 5, double-clutch 2d has input end 23d, the first mouth 21d and the second mouth 22d, driving engine 4 is connected with the input end 23d of double-clutch 2d, specifically, driving engine 4 can pass through the various ways such as flywheel, bumper or reverse plate and is connected with the input end 23d of double-clutch 2d.

The first mouth 21d of double-clutch 2d is connected with the first input shaft 11, thus this first mouth 21d and the first input shaft 11 synchronous rotary.The second mouth 22d of double-clutch 2d is connected with the second input shaft 12, thus this second mouth 22d and the second input shaft 12 synchronous rotary.

Wherein, the input end 23d of double-clutch 2d can be the housing of double-clutch 2d, and its first mouth 21d and the second mouth 22d can be two clutch plates.Usually, housing and two clutch plates can all disconnect, namely input end 23d and the first mouth 21d and the second mouth 22d all disconnects, when needs engage one of them clutch plate, housing can be controlled carry out engaging thus synchronous rotary with corresponding clutch plate, namely input end 23d engages with one of the first mouth 21d and the second mouth 22d, thus the power that input end 23d transmits can by an output in the first mouth 21d and the second mouth 22d.

Especially, housing also can engage with two clutch plates simultaneously, namely input end 23d also can engage with the first mouth 21d and the second mouth 22d simultaneously, thus the power that input end 23d transmits can be exported by the first mouth 21d and the second mouth 22d simultaneously.

Be to be understood that, the concrete engagement state of double-clutch 2d is controlled the impact of strategy, for a person skilled in the art, can transmission mode needed for reality and adaptive settings control policy, thus can switch in the various modes that input end 23d all disconnects with two mouths and input end 23d and two mouths one of at least engage.

Below in conjunction with Fig. 1-Fig. 5, the annexation between three power take-off shafts (i.e. the first output shaft 21, second output shaft 22 and motor mechanical axis 3) and differential for vehicles 75 is described in detail.

The diff 75 of vehicle can be arranged between a pair front-wheel 76 or between pair of rear wheels 77, and in examples more of the present invention, diff 75 is between a pair front-wheel 76.The function of diff 75 is when turn inside diameter travels or travels on uneven road surface, and driving wheels is rolled with different cireular frequencys, to ensure two side drive wheel and ground intercropping PURE ROLLING.Diff 75 is provided with main reduction gear driven gear 74, such as main reduction gear driven gear 74 can be arranged on the housing of diff 75.Main reduction gear driven gear 74 can be finishing bevel gear cuter, but is not limited thereto.

Mention above, fixing output gear 211 and efferent 221 (empty set output gear 221) the exportable power through output shaft, therefore fix output gear 211 and efferent 221 all engages with the main reduction gear driven gear of vehicle.

Similarly, because reverse output gear 72 is for exporting the power that reverses gear, therefore reverse output gear 72 engages with main reduction gear driven gear 74 equally.

Driving limit, limit charging operating mode simultaneously in joint situation of power generation in parking, double-clutch 2d and operating mode of reversing gear is comprised according to some typical conditions of the power drive system 100 of the embodiment of the present invention.

First this typical condition of power generation in parking is described, when vehicle is in parked state, driving engine 4 is arranged to export the power of generation to first dynamotor 51 by motor gear 73, motor power shaft gear 31, thus drives the first dynamotor 51 to generate electricity.

Specifically, specific embodiment shown in composition graphs 1-Fig. 5, driving engine 4 power of generation can be kept off gear pair from the first input shaft 11, five or the second input shaft 12, six gear gear pair exports the second output shaft 22 to, thus this part power generates electricity as electrical generator to drive the first dynamotor 51 by exporting to the first dynamotor 51 after motor gear 73, motor power shaft gear 31, motor mechanical axis 3.

Thus, achieve power generation in parking function, enriched charge mode, and under power generation in parking operating mode, vehicle remains static, the power of driving engine 4 all for charging, can improve charge efficiency, realizes quick function of supplying power.

Secondly the limit driving limit charging operating mode of double-clutch 2d simultaneously in joint situation is described, under this operating mode, wherein a part of power can be exported to wheel using the power travelled as vehicle by a wherein output shaft by conjugation while input end 23d and the first mouth 21d and the second mouth 22d by driving engine 4, and another part power is exported to the first dynamotor 51 by motor gear 73, motor power shaft gear 31, thus the first dynamotor 51 is driven to generate electricity.

Specifically, the specific embodiment of composition graphs 1-Fig. 5 example, under this operating mode, a part of power of driving engine 4 can input from the first input shaft 11, again by exporting to the first dynamotor 51 after five gear gear pairs, motor gear 73, motor power shaft gear 31, thus driving the first dynamotor 51 to generate electricity, another part power that driving engine 4 exports simultaneously exports by the second input shaft 12, second gear pair or four gear gear pairs.

Or as shown in Figure 1, driving engine 4 exports to the first dynamotor 51 after also can keeping off gear pair, motor gear 73, motor power shaft gear 31 by the second input shaft 12, six, thus driving the first dynamotor 51 to generate electricity, another part power of driving engine 4 exports by the first input shaft 11, first gear pair or three gear gear pairs.

Because tradition has in the power drive system of double-clutch, double-clutch 2d only has a power-transfer clutch in running order at synchronization, and achieve the breakthrough application to double-clutch 2d according to the power drive system 100 of the embodiment of the present invention, i.e. under two whole engagement states of power-transfer clutch of double-clutch 2d (input end 23d engages the first mouth 21d and the second mouth 22d simultaneously), a part of power of driving engine 4 is exported by an output shaft drives vehicle to travel, another part power then exports to the first dynamotor 51, drive motor generates electricity, enrich transmission mode, take into account vehicle to travel and charging requirement.

Again describe and to reverse gear pattern, especially, according to the power drive system 100 of the embodiment of the present invention, there is machinery and to reverse gear pattern, electronic pattern and mixed dynamic pattern three kinds of patterns of reversing gear of reversing gear of reversing gear.

The machinery pattern of reversing gear is the car-backing function utilizing the power of driving engine 4 to realize vehicle, vehicle be in machinery reverse gear pattern time, driving engine 4 as propulsion source by the Power output that produces to reverse idler gear, and synchronous and the power of generation is exported by reverse output gear 72 to reverse idler gear by reverse gear synchronizer 72c.

Specifically, embodiment shown in composition graphs 1, driving engine 4 exports power to the 3rd reverse idler gear 713 by the second input shaft 12, first reverse idler gear 711, second reverse idler gear 712, the sliding hub of reverse gear synchronizer 72c moves right to engage the 3rd reverse idler gear 713, thus can by exporting from reverse output gear 72 after reverse idler gear from the power of driving engine 4.

In brief, vehicle be in machinery reverse gear pattern time, as shown in Figure 1, reverse gear synchronizer 72c engages the 3rd reverse idler gear 713.

The electronic pattern of reversing gear is the car-backing function utilizing the first dynamotor 51 to realize vehicle, vehicle be in electronic reverse gear pattern time, the first dynamotor 51 as propulsion source by the power of generation by after motor gear 73 from be provided with motor gear 73 output shaft export.Specifically, as Figure 1-Figure 5, export from efferent 221 after now power is taken out gear 31, motor gear 73, second output shaft 22 by motor power by efferent synchro 221c joint efferent 221, first dynamotor 51.Under this path, efferent synchro 221c is only had to be in engagement state.

Or, the first dynamotor 51 as propulsion source by the power of generation by exporting reverse idler gear to after motor gear 73 and by the synchronous of reverse gear synchronizer 72c, power being exported from reverse output gear 72.Specifically, as Figure 1-Figure 5, efferent synchro 221c is in off-state, five or six gear synchro 56c engage six gear driven gear 6b, reverse gear synchronizer 72c engages the 3rd reverse idler gear 713 simultaneously, thus power is taken out gear 31 by motor power by the first dynamotor 51, motor gear 73, six exports from reverse output gear 72 after keeping off gear pair, the second input shaft 12, reverse idler gear.Under this path, reverse gear synchronizer 72c is in engagement state and five or six gear synchro 56c engage six gear driven gear 6b.

The mixed dynamic pattern of reversing gear is the car-backing function simultaneously utilizing driving engine 4 and the first dynamotor 51 to realize vehicle, and the mixed dynamic pattern of reversing gear is that above-mentioned machinery reverses gear the combination of pattern and the electronic pattern of reversing gear of the second.

Vehicle be in mixed dynamic reverse gear pattern time, driving engine 4 as dynamic origin by the Power output that produces to reverse idler gear, and synchronous and the power of generation is exported by reverse output gear 72 to reverse idler gear by reverse gear synchronizer 72c.

Meanwhile, the first dynamotor 51 as propulsion source by the power of generation by exporting reverse idler gear to after motor gear 73 and by the synchronous of reverse gear synchronizer 72c, power being exported from reverse output gear 72.Under this path, reverse gear synchronizer 72c is in engagement state and five or six gear synchro 56c engage six gear driven gear 6b.

Particularly, as shown in Figure 1, power drive system 100 be in mixed dynamic reverse gear pattern time, combine above-mentioned machinery to reverse gear pattern and the electronic pattern of reversing gear of the second, driving engine 4 first exports power to second input shaft 12 according to above-mentioned machinery pattern of reversing gear, first dynamotor 51 also exports power to second input shaft 12 according to the electronic pattern of reversing gear of above-mentioned the second, two parts power is exported by reverse idler gear and reverse output gear 72 after the coupling of the second input shaft 12 place, realizes mixed dynamic reversing.

Now, the first dynamotor 51 can carry out speed governing, makes the second input shaft 12 synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improves ride comfort, the harmony of transmission.

Thus, this power drive system 100 can realize three kinds of patterns of reversing gear, and namely machinery reverses gear pattern, electronic pattern and the mixed dynamic pattern of reversing gear of reversing gear, and has enriched operating mode of reversing gear, can switch in these three kinds of patterns of reversing gear flexibly according to actual conditions, meet driving demand.

Such as, when Vehicular battery carrying capacity abundance, electronic pattern of reversing gear can be adopted, so not only can not discharge of noxious gases when moveing backward, and can also energy consumption be reduced, move backward for position for new chaufeur especially, operation may be needed repeatedly could to pour vehicle into assigned address, and driving engine 4 is owing to can produce more pernicious gas when low-reverse, driving engine 4 is generally in non-economy rotary speed area when moveing backward simultaneously, oil consumption is relatively high, now adopt the electronic pattern of reversing gear can improve this problem well, discharge can not only be reduced, adopt motor to realize low-reverse energy consumption as power lower simultaneously, certain improvement is had to the fuel economy of driving engine 4.

And for example, when Vehicular battery carrying capacity inadequate or lower, machinery can be adopted to reverse gear pattern.For another example, under needs are moveed backward fast or needed the operating modes such as high-power reversing, then can adopt mixed dynamic pattern of reversing gear, increase the dynamic property of vehicle, convenient reversing.

Certainly, the above-mentioned description about three kinds of model application environment that reverse gear is only schematic, can not be interpreted as it is the pattern of reversing gear that must adopt above-mentioned correspondence to a kind of restriction of the present invention or hint under vehicle is in above-mentioned environment.For the ordinary skill in the art, obviously can as required or actual conditions specifically set pattern of reversing gear required under corresponding reversing environment.

Thus, enrich the pattern of reversing gear of power drive system 100 further, more selected to chaufeur, fully improve Driving, meet the requirement of reversing gear of different road conditions better.

According to the power drive system 100 of some embodiments of the present invention, the second dynamotor 52 can also be set up to increase the dynamic property of power drive system 100, enrich transmission mode.

Such as, wherein in some embodiments, the second dynamotor 52 can with main reduction gear driven gear 74 transmission, the motor shaft of the second dynamotor 52 such as, can arrange gear, and this gear and main reduction gear driven gear 74 be engaged transmission directly.And for example, in further embodiments, the second dynamotor 52 also can be arranged to be connected with the first input shaft 11 or be connected with the first output shaft 21.For another example, in some embodiments again, the second dynamotor 52 is two and is separately positioned on the both sides of diff 75, and such as these two the second dynamotors 52 can become one with diff 75.Or, aforesaid driving engine 4 and the first dynamotor 51 are for driving front-wheel, second dynamotor 52 also can be wheel motor and for trailing wheel, or the second dynamotor 52 can drive two trailing wheels by a speed reduction gearing, or the second dynamotor 52 is two and drives a trailing wheel respectively by a speed reduction gearing.

Describe the electronic differential lock construction according to the embodiment of the present invention in detail below with reference to Fig. 2-Fig. 5, this structure can realize the pair of driving wheels that locking skids when there is tyre skidding phenomenon, thus improves skidding, improves trafficability energy.

As Figure 2-Figure 5, this electronic differential lock construction comprises the 3rd dynamotor 201, the 4th dynamotor 301 and anti-skidding synchro 503.Wherein, driving engine 4 and/or the first dynamotor 51 are for driving pair of wheels 76,3rd dynamotor 201 and the 4th dynamotor 301 are arranged for driving second pair of wheel 77, wherein pair of wheels 76 is a pair in front-wheel and trailing wheel, and the second pair of wheel 77 is other a pair in front-wheel and trailing wheel.In the example of Fig. 2-Fig. 5, driving engine 4 and the first dynamotor 51 drive front-wheel, and the 3rd dynamotor 201 and the 4th dynamotor 301 are respectively used to driving two trailing wheels.

Shown in composition graphs 2-Fig. 5,3rd dynamotor 201 is arranged to link with in second pair of wheel 77, in other words, 3rd dynamotor 201 can output power to this wheel to drive this vehicle wheel rotation, or the 3rd dynamotor 201 also can absorb energy from this wheel, thus generates electricity.

Similarly, 4th dynamotor 301 is arranged to link with another in second pair of wheel 77, in other words, 4th dynamotor 301 can output power to this another wheel to drive this another vehicle wheel rotation, or the 4th dynamotor 301 also can absorb energy from this another wheel, thus generates electricity.In the example of Fig. 2-Fig. 5, the 3rd dynamotor 201 links with left rear wheel, and the 4th dynamotor 301 links with off hind wheel, but the present invention is not limited to this.

Anti-skidding synchro 503 is arranged to optionally synchronous second pair of wheel 77, thus make second pair of wheel 77 synchronous rotary, in other words, the synchronous second pair of wheel 77 (namely anti-skidding synchro 503 is in engagement state) of anti-skidding synchro 503, formed between second pair of wheel 77 and connect firmly form, thus synchronous rotary, can not rotate by differential.

And when anti-skidding synchro 503 is in off-state, 3rd dynamotor 201 and the 4th dynamotor 301 can drive corresponding wheel with different rotational speed respectively, realize the differential rotating function of two wheels, certainly, when anti-skidding synchro 503 is in off-state, the 3rd dynamotor 201 and the 4th dynamotor 301 also can drive this second pair of wheel 77 with identical rotational speed.

Thus, by arranging the 3rd dynamotor 201 and the 4th dynamotor 301 individually drives second pair of wheel 77, thus the differential that can realize second pair of wheel 77 rotates, and when there is one of them tyre skidding phenomenon, anti-skidding synchro 503 can synchronous second pair of wheel 77 to make second pair of wheel 77 synchronous rotary, jointly after realizing the power coupling that two motors (can certainly be) export drive second pair of wheel 77 operation, improve tyre skidding phenomenon, improve the carrying capacity of vehicle.

In brief, according to the power drive system 100 of the embodiment of the present invention, owing to being provided with the cause of anti-skidding synchro 503, therefore corresponding vehicle bridge can be cancelled (such as, back axle) the mechanical type self-locking differential structure that has, but functionally but can be realized the function of traditional mechanical type self-locking differential by the synchronous effect of anti-skidding synchro 503, make thus compacter according to the structure of the power drive system 100 of the embodiment of the present invention, cost is lower.

Below the example of type of drive composition graphs 2-Fig. 5 of the 3rd dynamotor 201, the 4th dynamotor 301 and wheel is described in detail.

In certain embodiments, as shown in figs 2-4, by gear structure indirect drive between the 3rd dynamotor 201 and corresponding wheel, similarly, between the 4th dynamotor 301 and corresponding wheel, also this gear structure indirect drive can be passed through.

Carry out transmission by gear structure to be easy to realize and structure is simple, and required transmitting ratio can be obtained, reliable transmission.And, 3rd dynamotor 201 carries out power transmission with corresponding wheel by identical gear structure with the 4th dynamotor 301, also improve the commonality of gear structure, also make power drive system 100 have higher symmetry simultaneously, center of gravity is avoided too to depart to side, enable center of gravity be in the midway location of two wheels or the position near centre better, improve stability and the reliability of power drive system 100.

Further, as optional embodiment, as shown in Figure 3-Figure 5, the gear structure adopted between the 3rd dynamotor 201 and corresponding wheel can comprise the first gear 401, second gear 402, the 3rd gear 403 and the 4th gear 404 4 gears.

First gear 401 can be arranged on the first power take-off shaft 202 of the 3rd dynamotor 201 correspondence, and the first gear 401 can with the first power take-off shaft 202 synchronous rotary.Wherein, first power take-off shaft 202 can be used for exporting the power produced from the 3rd dynamotor 201, or counter for the wheel Power output dragged can be same structure to the motor shaft of the 3rd dynamotor 201, first power take-off shaft 202 and the 3rd dynamotor 201 by the first power take-off shaft 202.Certainly alternatively, the motor shaft of the first power take-off shaft 202 and the 3rd dynamotor 201 also can be two independent parts, and now the first power take-off shaft 202 is connected with the motor of the 3rd dynamotor 201.

The wheel corresponding with the 3rd dynamotor 201 is connected with the first semiaxis 204, second gear 402 to be arranged on the first semiaxis 204 and can with the first semiaxis 204 synchronous rotary, 3rd gear 403 engages with the first gear 401 and the 4th gear 404 engages with the second gear 402, and the 3rd gear 403 and the 4th gear 404 coaxially arranged and can synchronous rotary.

Similarly, as shown in figs 2-4, the gear structure adopted between the 4th dynamotor 301 and corresponding wheel can comprise the 5th gear 405, the 6th gear 406, the 7th gear 407 and octadentate and take turns 408 totally four gears.On the second power take-off shaft 302 that 5th gear 405 can be arranged on the 4th dynamotor 301 correspondence and can with the second power take-off shaft 302 synchronous rotary.Wherein, second power take-off shaft 302 can be used for exporting the power produced from the 4th dynamotor 301, or counter for the wheel Power output dragged can be same structure to the motor shaft of the 4th dynamotor 301, second power take-off shaft 302 and the 4th dynamotor 301 by the second power take-off shaft 302.Certainly alternatively, the motor shaft of the second power take-off shaft 302 and the 4th dynamotor 301 also can be two independent parts, and now the second power take-off shaft 302 is connected with the motor shaft of the 4th dynamotor 301.

The wheel corresponding with the 4th dynamotor 301 is connected with the second semiaxis 304,6th gear 406 to be arranged on the second semiaxis 304 and can with the second semiaxis 304 synchronous rotary, 7th gear 407 engages with the 5th gear 405 and octadentate is taken turns 408 and engaged with the 6th gear 406, and the 7th gear 407 and octadentate are taken turns 408 synchronization arrangement and can synchronous rotary.

Alternatively, first gear 401 and the 5th gear 405, second gear 402 and the 6th gear 406, the 3rd gear 403 and the 7th gear 407 and the 4th gear 404 and octadentate take turns 408 size can be identical respectively with the number of teeth, thus improve the commonality of gear structure.

As optional embodiment, the 3rd gear 403 and the 4th gear 404 can be fixed on the first gear wheel shaft 501, and the 7th gear 407 and octadentate are taken turns 408 and can be fixed on the second gear wheel shaft 502.Certainly, the 3rd gear 403 and the 4th gear 404 also can be configured to stepped gear or connection gear structure.Similarly, the 7th gear 407 and octadentate are taken turns 408 and also can be configured to stepped gear or join gear structure.

In some instances, as shown in Figure 2, anti-skidding synchro 503 can be arranged on the first semiaxis 204 and to be arranged to optionally engage the 6th gear 406, such as, 6th gear 406 can arrange joint gear ring towards the side of anti-skidding synchro 503, the sliding hub of anti-skidding synchro 503 and this joint gear ring adaptation.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 77 is by synchronous rotary.

In other examples, as shown in Figure 3, anti-skidding synchro 503 to be arranged on the first power take-off shaft 202 and to be arranged to optionally engage the 5th gear 405, such as, 5th gear 405 can arrange joint gear ring towards the side of anti-skidding synchro 503, the sliding hub of anti-skidding synchro 503 and this joint gear ring adaptation.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 77 is by synchronous rotary.

In other example, as shown in Figure 4, anti-skidding synchro 503 to be arranged on the first gear wheel shaft 501 and to be arranged to optionally engage the 7th gear 407, such as, 7th gear 407 can arrange joint gear ring towards the side of anti-skidding synchro 503, the sliding hub of anti-skidding synchro 503 and this joint gear ring adaptation.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 77 is by synchronous rotary.

Alternatively, in the example of hgure 5, the 3rd dynamotor 201 and corresponding wheel be coaxially connected and the 4th dynamotor 301 be coaxially connected with corresponding wheel.Further, the 3rd dynamotor 201 and the 4th dynamotor 301 can be all wheel motors, and messenger chain is short thus, and transmission degradation of energy is few, and driving efficiency is high.

Further, as shown in Figure 5, anti-skidding synchro 503 can be arranged on the 3rd dynamotor 201 correspondence the first power take-off shaft 202 on and be arranged to optionally engage the second power take-off shaft 302 of the 4th dynamotor 301 correspondence.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 77 is by synchronous rotary.

Structure and the typical condition of each specific embodiment medium power driving system 100 are simply described referring to Fig. 1-Fig. 5.

Embodiment one:

As shown in Figure 1, driving engine 4 is connected with the input end 23d of double-clutch 2d, the first mouth 21d of double-clutch 2d is connected with the first input shaft 11, the second mouth 22d of double-clutch 2d is connected with the second input shaft 12, the input end 23d of double-clutch 2d and the first mouth 21d of double-clutch 2d and the second mouth 22d can be in off-state simultaneously, or the input end 23d of double-clutch 2d can engage with one of the first mouth 21d and the second mouth 22d of double-clutch 2d, or the input end 23d of double-clutch 2d can engage with the first mouth 21d of double-clutch 2d and the second mouth 22d simultaneously.

Second input shaft 12 is hollow shaft structure, and the first input shaft 11 is solid axle, and the second input shaft 12 is set on the first input shaft 11 coaxially, and a part for the first input shaft 11 is protruding vertically in the second input shaft 12.

First input shaft 11 is provided with can with a gear driving gear 1a of the first input shaft 11 synchronous axial system, three gear driving gear 3a and five gear driving gear 5a, one gear driving gear 1a is positioned at the right side of five gear driving gear 5a, and three gear driving gear 3a are positioned at the left side of five gear driving gear 5a.

Second input shaft 12 is provided with can with two gear driving gear 2a of the second input shaft 12 synchronous axial system, four or six gear driving gear 46a.

First output shaft 21 and two input shafts are arranged in parallel, first output shaft 21 is set with a gear driven gear 1b, two gear driven gear 2b, three gear driven gear 3b and four gear driven gear 4b, one gear driven gear 1b and one keeps off driving gear 1a and directly engages, two gear driven gear 2b and two keep off driving gear 2a and directly engage, three gear driven gear 3b and three keep off driving gear 3a and directly engage, and four gear driven gear 4b and four or six keep off driving gear 46a and directly engage.

First output shaft 21 is also provided with one or three gear synchro 13c and two or four gear synchro 24c, one or three gear synchro 13c keep off between driven gear 3b at a gear driven gear 1b and three, and optionally by synchronous with the first output shaft 21 for a gear driven gear 1b or three gear driven gear 3b, two or four gear synchro 24c keep off between driven gear 4b at two gear driven gear 2b and four, and optionally by synchronous with the first output shaft 21 for two gear driven gear 2b or four gear driven gear 4b.

Second output shaft 22 is same to be arranged in parallel with two input shafts, second output shaft 22 is set with five gear driven gear 5b and six gear driven gear 6b, five gear driven gear 5b and five keep off driving gear 5a and directly engage, six gear driven gear 6b and four or six keep off driving gear 46a and directly engage, second output shaft 22 is also provided with five or six gear synchro 56c, five or six gear synchro 56c are used for synchronous with the second output shaft 22 for five gear driven gear 5b or six gear driven gear 6b.

First output shaft 21 is also fixedly installed on fixing output gear 211, second output shaft 22 and is set with efferent 221 i.e. empty set output gear 221, fixing output gear 211 and empty set output gear 221 engage with main reduction gear driven gear 74 respectively.

Second output shaft 22 is also provided with efferent synchro 221c and motor gear 73, efferent synchro 221c and empty set output gear synchro 221c be positioned at empty set output gear 221 right side and for empty set output gear 221 is engaged with the second output shaft 22.Motor gear 73 is fixedly installed on the second output shaft 22.

First reverse idler gear 711 and the second reverse idler gear 712 all empty set are into a single integrated structure to form dual gear on the second output shaft 22, and the first reverse idler gear 711 and two keeps off driving gear 2a and engages.

Motor mechanical axis 3 and two input shafts, two output shafts be arranged in parallel, motor mechanical axis 3 be set with reverse output gear 72 and be fixedly installed motor power shaft gear 31 and be also set with the 3rd reverse idler gear 713, motor power shaft gear 31 engages with motor gear 73, reverse output gear 72 is provided with reverse gear synchronizer 72c, reverse gear synchronizer 72c engages with the second reverse idler gear 712 for engaging the 3rd reverse idler gear the 713, three reverse idler gear 713.First dynamotor 51 is coaxially connected with motor mechanical axis 3.

Below the typical condition of power drive system 100 shown in Fig. 1 is described in detail.

Parking charging operating mode:

Under parking charging operating mode, driving engine 4 can be generated electricity by two different path drives first dynamotors 51.

Path one, five or six gear synchro 56c engage five gear driven gear 5b, the power that driving engine 4 exports exports to the first dynamotor 51 after keeping off gear pair, the second output shaft 22, motor gear 73, motor power shaft gear 31 by the first input shaft 11, five, thus drives the first dynamotor 51 to generate electricity.

Path two, five or six gear synchro 56c engage six gear driven gear 6b, the power that driving engine 4 exports exports to the first dynamotor 51 after keeping off gear pair, the second output shaft 22, motor gear 73, motor power shaft gear 31 by the second input shaft 12, six, thus drives the first dynamotor 51 to generate electricity.

Constant-speed ratio charging can be realized under this operating mode, energy transfer efficiency is higher, and selecting about speed ratio, the maximum speed of revolution allowed with the additional components such as type selecting and periphery bearing of rotating speed during driving engine 4 parking, the first dynamotor 51 has direct relation, for the ordinary skill in the art, can comprehensively above etc. factor consider, the corresponding transmission speed ratio of flexible design, make power drive system 100 can utilize the energy of driving engine 4 substantially when power generation in parking, reach fast charge object.In brief, by first input shaft 11, five keep off gear pair, motor gear 73 or the second input shaft 12, six gear gear pair, this two path transmissions driving engine 4 of motor gear 73 power time, be the object that can realize the charging of best constant-speed ratio, improve the fuel economy of charge efficiency and driving engine.

Pure electronic operating mode:

Efferent synchro 221c is engaged efferent 221, first dynamotor 51 and is exported from efferent 221 by motor power shaft gear 31, motor gear 73 by power, and these path intermediate transmission parts are few, driving efficiency is high.

Certainly, first dynamotor 51 also can output power to motor gear 73, exported to the second input shaft 12 by six gear gear pairs or exporting the first input shaft 11 to by five gear gear pairs, this part power passes through the second input shaft 12 again, second gear pair or four is kept off gear pairs and exported, or keeps off gear pairs output by the first input shaft 11 first gear pair or three.

Thus, under power drive system 100 is in pure electronic operating mode, the path that the first dynamotor 51 can have different speed ratio by above-mentioned many outputs power to wheel, thus drives vehicle to travel.In brief, being undertaken by the first dynamotor 51 starting to walk, suddenly to accelerate, climb, the situation such as to run at a constant speed under, different optimum speed ratios can be selected respectively, thus make the first dynamotor 51 work efficiency the highest.

The mixed condition scheme one of starting building of each gear:

Driving engine 4 is by a gear, two gears, three gears or four gear outputting powers, and two parts power jointly exports to wheel after the coupling of main reduction gear driven gear 74 place.Now, the first dynamotor 51 can carry out speed governing, thus makes main reduction gear driven gear 74 synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improves ride comfort, the harmony of transmission.

Or driving engine is also by five gears or six gear outputting powers, and two parts power jointly exports to wheel after the coupling of the second output shaft 22 place.Now, the first dynamotor 51 can carry out speed governing, thus makes the second output shaft 22 synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improves ride comfort, the harmony of transmission.

The mixed condition scheme two of starting building of each gear: efferent synchro 221c is in off-state, the power that first dynamotor 51 exports keeps off gear pair by motor gear 73, six and exports the second input shaft 12 to, driving engine 4 can output power to the second input shaft 12, secondary or the four gear gear pairs outputs by second gear after two parts power is coupled on the second input shaft 12, or driving engine 4 can output power to the first input shaft 11 and the secondary or three gear gear pairs outputs by first gear, jointly exports after two parts power is coupled on the first output shaft 21.In scheme two, first dynamotor 51 can carry out speed governing equally, thus make the second input shaft 12 or the first output shaft 21 synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improve ride comfort, the harmony of transmission.

The mixed condition scheme three of starting building of each gear: efferent synchro 221c is in off-state, the power that first dynamotor 51 exports keeps off gear pair by motor gear 73, five and exports the first input shaft 11 to, driving engine 4 can output power to the first input shaft 11, secondary or the three gear gear pairs outputs by first gear after two parts power is coupled on the first input shaft 11, or driving engine 4 can output power to the second input shaft 21 and the secondary or four gear gear pairs outputs by second gear, jointly exports after two parts power is coupled on the first output shaft 21.In scheme three, first dynamotor 51 can carry out speed governing equally, thus make the first input shaft 11 or the first output shaft 21 synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improve ride comfort, the harmony of transmission.

To sum up, for the ordinary skill in the art, can be according to actual needs, above-mentioned any each gear is selected to mix neatly to start building condition scheme one and each gear to mix mixed arbitrarily dynamic path in condition scheme two of starting building, scheme three, greatly enrich the transmission mode of power drive system 100, improve Driving, enable vehicle adapt to different road conditions better, improve dynamic property, the fuel economy of vehicle.

Driving limit, driving engine limit charging operating mode scheme one:

Driving engine 4 is by a gear, two gears, three gears or four gear gear pair outputting powers, efferent synchro 221c engages efferent 221 simultaneously, efferent 221, second output shaft 22 is dragged by wheel is counter, and then drive motor gear 73, motor power shaft gear 31 and motor mechanical axis 3 link, make the anti-energy that drags of wheel finally can export to the first dynamotor 51, thus drive the first dynamotor 51 to generate electricity.

Certainly, driving engine 4 also can by five gears or six gear gear pair outputting powers, efferent synchro 221c engages efferent 221 simultaneously, the power that now driving engine 4 produces exports to the second output shaft 22 by five gear gear pairs or six gear gear pairs, wherein a part of power exports to drive wheel by efferent 221, remaining a part of power by exporting to the first dynamotor 51 after motor gear 73, motor power shaft gear 31, motor mechanical axis 3, thus drives the first dynamotor 51 to generate electricity.

Driving limit, driving engine 4 limit charging operating mode scheme two:

In driving limit, driving engine 4 limit charging operating mode scheme one presented hereinbefore, double-clutch 2d all only has a power-transfer clutch to carry out engaging work when transmission, such as its input end 23d engages with the first mouth 21d or input end 23d engages with the second mouth 22d, especially, according to the power drive system 100 of the embodiment of the present invention, when the input end 23d of double-clutch 2d engages with the first mouth 21d and the second mouth 22d simultaneously, driving limit, limit charging operating mode also can be realized.

The first situation: five or six gear synchro 56c engage five gear driven gear 5b, and efferent synchro 221c is in off-state.A part of power of driving engine 4 by exporting to the first dynamotor 51 after the first input shaft 11, five gear gear pair, the second output shaft 22, motor gear 73, motor power shaft gear 31, thus drives the first dynamotor 51 to generate electricity.Another part power of driving engine 4 exports to drive wheel from the first output shaft 21 by the second input shaft 12, second gear pair or four gear gear pairs.

The second situation: five or six gear synchro 56c engage six gear driven gear 6b, and efferent synchro 221c is in off-state.A part of power of driving engine 4 by exporting to the first dynamotor 51 after the second input shaft 12, six gear gear pair, the second output shaft 22, motor gear 73, motor power shaft gear 31, thus drives the first dynamotor 51 to generate electricity.Another part power of driving engine 4 exports to drive wheel from the first output shaft 21 by the first input shaft 11, first gear pair or three gear gear pairs.

To sum up, for the ordinary skill in the art, can be according to actual needs, select any drive path charged in operating mode scheme one and driving limit, driving engine limit charging operating mode scheme two in driving limit, above-mentioned driving engine limit neatly, greatly enrich the transmission mode of power drive system 100, improve Driving, enable vehicle adapt to different road conditions better, improve dynamic property, the fuel economy of vehicle.

And, in some above-mentioned driving limits, driving engine limit charging operating mode, the partial power relating to driving engine by the first input shaft 11, five keep off gear pair, motor gear 73 or the second input shaft 12, six gear gear pair, this two path transmissions driving engine 4 of motor gear 73 power time, be the object that can realize the charging of best constant-speed ratio, improve the fuel economy of charge efficiency and driving engine.

To reverse gear operating mode:

First describe machinery to reverse gear, reverse gear synchronizer 72c engages the 3rd reverse idler gear 713, thus the power that driving engine 4 produces exports from reverse output gear 72 after keeping off driving gear 2a, the first reverse idler gear 711, second reverse idler gear 712, the 3rd reverse idler gear 713 by the second input shaft 12, two.

Secondly describe pure electronicly to reverse gear, efferent synchro 221c can engage efferent 221, and the power that the first dynamotor 51 produces is by exporting from efferent 221 after motor power shaft gear 31, motor gear 73, second output shaft 22.Or, efferent synchro 221c is in off-state, five or six gear synchro 56c engage six gear driven gear 6b, reverse gear synchronizer 72c engages the 3rd reverse idler gear 713 simultaneously, thus the first dynamotor 51 exports from reverse output gear 72 after power is kept off gear pair, the second input shaft 12, reverse idler gear by motor gear 73, six.

Again describe mixed moving to reverse gear, reverse gear synchronizer 72c is in engagement state and five or six gear synchro 56c engage six gear driven gear 6b, driving engine 4 outputs power to the second input shaft 12, first dynamotor 51 by motor gear 73, six keep off gear pair also export power to second input shaft 12, two parts power second input shaft 12 place coupling after by reverse idler gear after export from reverse output gear 72.Now, the first dynamotor 51 can carry out speed governing equally, thus makes the second input shaft 12 synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improves ride comfort, the harmony of transmission.

Especially, in parking charging operating mode, driving limit, driving engine limit charging operating mode, the power of driving engine 4 exports to the first dynamotor 51 by motor gear 73, motor power shaft gear 31, and now the first dynamotor 51 can rotate along same predetermined direction, such as, rotate forward.Such as, such as, and at the first dynamotor 51 as in the operating mode of propulsion source, pure electronic operating mode or mixed condition of starting building, the first dynamotor 51 still can rotate according to above-mentioned same predetermined direction, rotates forward.Further, under the operating mode of reversing gear having the first dynamotor 51 to participate in, relate to the first dynamotor 51 by motor gear 73, reverse idler gear, this path output motor of reverse output gear 72 reverse gear power time, first dynamotor 51 still can rotate along above-mentioned same predetermined direction, such as, rotate forward.

In brief, under each operating mode presented hereinbefore, first dynamotor 51 rotates according to same predetermined direction from start to finish, namely the first dynamotor 51 is when as electrical motor work and generator operation, can rotate according to same direction always, especially for from pure electronic operating mode, charging operating mode, mixed conditions of starting building etc. are in the process of reversing gear operating mode switching, first dynamotor 51 is also without the need to commutation, thus make the first dynamotor 51 all can rotating Vortex from start to finish under the above-mentioned operating mode of the work of participation, motor is without the need to commutation, and then the impact sense improved because motor commutation brings, pause and transition in rhythm or melody sense etc., improve the life-span of power drive system 100.

Embodiment two-embodiment five:

As Figure 2-Figure 5, power drive system 100 in these some embodiments is to add rear wheel drive structure with the key distinction of the power drive system 100 shown in Fig. 1, mainly add the structures such as the 3rd genemotor 201, the 4th dynamotor 301 and anti-skidding synchro 503, specifically see the above-mentioned description to electronic differential lock construction, can repeat no more here.

Embodiment six:

As shown in Figure 6, change-speed box 101 in this embodiment is to eliminate the structures such as driving engine 4, double-clutch 2d, the first dynamotor 51 and diff with the key distinction of the power drive system 100 shown in Fig. 1, remainder is substantially identical with Fig. 1 embodiment, repeats no more here.

In addition, the vehicle comprising power drive system 100 as above is further provided according to embodiments of the invention.Should be understood that, all be well known for ordinary skill in the art for prior art as driving system, steering swivel system, brake system etc. according to other configuration example of the vehicle of the embodiment of the present invention, therefore the detailed description of conventional construction omitted herein.

In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification sheets or example can carry out engaging and combining by those skilled in the art.

Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims

1. for a power drive system for vehicle, it is characterized in that, comprising:

Driving engine;

Multiple input shaft, described driving engine is arranged to optionally engage at least one in described multiple input shaft, and each described input shaft is provided with gear driving gear;

Multiple output shaft, each described output shaft is provided with gear driven gear, and described gear driven gear engages accordingly with described gear driving gear;

Motor mechanical axis, described motor mechanical axis is arranged to link with in described output shaft; And

First dynamotor, described first dynamotor is arranged to link with described motor mechanical axis, wherein

Described one when linking in described motor mechanical axis and described output shaft, described first dynamotor can utilize at least part of power of exporting from described driving engine described vehicle travel and parking time generate electricity.

2. the power drive system for vehicle according to claim 1, it is characterized in that, also comprise: efferent, in described output shaft described one can rotate by differential described efferent, and described efferent be arranged to optionally to engage in described output shaft described one with synchronous axial system.

3. the power drive system for vehicle according to claim 2, is characterized in that, also comprise: efferent synchro, and described efferent synchro is arranged for described one in synchronous described efferent and described output shaft.

4. the power drive system for vehicle according to claim 3, is characterized in that, described efferent synchro be arranged on described output shaft described one upper and for engaging described efferent.

5. change-speed box according to claim 2, is characterized in that, described efferent comprises empty set output gear, and described empty set output gear empty set is arranged on described one of described output shaft.

6. the power drive system for vehicle according to claim 3, is characterized in that, described one in described motor mechanical axis and described output shaft is linked by gear pair.

7. the power drive system for vehicle according to claim 6, it is characterized in that, described motor mechanical axis is fixedly installed motor power shaft gear, and described one in described output shaft is fixedly installed motor gear, and described motor gear engages with described motor power shaft gear.

8. the power drive system for vehicle according to claim 7, is characterized in that, also comprise:

Reverse output gear and reverse idler gear, described reverse output gear is arranged to optionally link with described reverse idler gear, and described reverse idler gear is arranged to link with one of them gear driving gear.

9. the power drive system for vehicle according to claim 8, is characterized in that, also comprise: reverse gear synchronizer, and described reverse gear synchronizer is arranged to optionally synchronous described reverse output gear and described reverse idler gear.

10. the power drive system for vehicle according to claim 9, it is characterized in that, described reverse gear synchronizer and described efferent synchro share same shifting fork mechanism, and when the synchronous described reverse output gear of described reverse gear synchronizer and described reverse idler gear, described efferent synchro is in off-state, when the synchronous described efferent of described efferent synchro and described output shaft described one, described reverse gear synchronizer is in off-state.

11. power drive systems for vehicle according to claim 9, it is characterized in that, described reverse idler gear comprises:

First reverse idler gear, the second reverse idler gear and the 3rd reverse idler gear, described first reverse idler gear is arranged to engage with one of them gear driving gear described, and described first reverse idler gear and described second reverse idler gear synchronous axial system, described second reverse idler gear engages with described 3rd reverse idler gear, and described reverse gear synchronizer is arranged to optionally synchronous described reverse output gear and described 3rd reverse idler gear.

12. power drive systems for vehicle according to claim 11, it is characterized in that, described reverse output gear and described 3rd reverse idler gear coaxially arranged, described reverse gear synchronizer be arranged in described reverse output gear and described 3rd reverse idler gear one upper and for engaging another.

13. power drive systems for vehicle according to claim 12, it is characterized in that, described reverse output gear and the equal empty set of described 3rd reverse idler gear are on described motor mechanical axis, and described reverse gear synchronizer is arranged on described reverse output gear.

14. power drive systems for vehicle according to claim 11, is characterized in that, described first reverse idler gear and described second reverse idler gear into a single integrated structure with formed connection gear.

15. power drive systems for vehicle according to claim 8, is characterized in that, also comprise: fixing output gear, described fixing output gear is fixedly installed on output shaft described in remaining.

16. power drive systems for vehicle according to claim 15, is characterized in that, described efferent, described fixing output gear and described reverse output gear all engage with the main reduction gear driven gear of described vehicle.

17. power drive systems for vehicle according to claim 10, is characterized in that,

Described input shaft comprises: the first input shaft and the second input shaft, and described second input shaft is set on described first input shaft coaxially;

Described multiple output shaft comprises: the first output shaft and the second output shaft, and described first output shaft and described second output shaft and input shaft be arranged in parallel;

Described power drive system also comprises:

Double-clutch, described double-clutch has input end, the first mouth and the second mouth, and described driving engine is connected with described input end, and described first mouth is connected with described first input shaft, and described second mouth is connected with described second input shaft.

18. power drive systems for vehicle according to claim 17, it is characterized in that, described first input shaft is provided with a gear driving gear, three gear driving gears and five gear driving gears, described second input shaft is provided with two gear driving gears and four or six gear driving gears;

Described first output shaft is provided with a gear driven gear, two gear driven gears, three gear driven gears and four gear driven gears, described second output shaft is provided with five gear driven gears and six gear driven gears; And

A described gear driven gear and described three keeps off and is provided with one or three between driven gear and keeps off synchro, described two gear driven gears and described four keep offs and are provided with two or four between driven gear and keep off synchro, and described five keep off driven gears and described six keeps off and be provided with five or six between driven gear and keep off synchro.

19. power drive systems for vehicle according to claim 18, it is characterized in that, described reverse idler gear and described two keeps off driving gear and engages, and described motor gear is fixed on described second output shaft, and described efferent empty set is on described second output shaft.

20. power drive systems for vehicle according to claim 17, it is characterized in that, wherein a part of power can be exported to wheel using the power travelled as described vehicle by wherein output shaft by conjugation while described input end and described first mouth and described second mouth and another part power is exported to described first dynamotor by described motor gear generate electricity to drive described first dynamotor by described driving engine.

21. power drive systems for vehicle according to claim 17, it is characterized in that, when described vehicle is in parked state, described driving engine is arranged to export the power of generation to described first dynamotor by described motor gear and is generated electricity to drive described first dynamotor.

22. power drive systems for vehicle according to claim 17, is characterized in that, described vehicle has machinery and to reverse gear pattern, electronic pattern and the mixed dynamic pattern of reversing gear of reversing gear,

Described vehicle be in described machinery reverse gear pattern time, described driving engine as propulsion source by the Power output of generation to described reverse idler gear power being exported from described reverse output gear by the synchronous of described reverse gear synchronizer;

Described vehicle be in described electronic reverse gear pattern time, described first dynamotor as propulsion source by the power of generation by after described motor gear from be provided with described motor gear output shaft export, or described first dynamotor as propulsion source by the power of generation by exporting described reverse idler gear to after described motor gear and by the synchronous of described reverse gear synchronizer, power being exported from described reverse output gear;

Described vehicle be in described mixed dynamic reverse gear pattern time, described driving engine as dynamic origin by the Power output of generation to described reverse idler gear power being exported from described reverse output gear by the synchronous of described reverse gear synchronizer, described first dynamotor as another propulsion source by the power of generation by exporting described reverse idler gear to after described motor gear and by the synchronous of described reverse gear synchronizer, power being exported from described reverse output gear.

23. power drive systems for vehicle according to claim 17, is characterized in that, described first dynamotor is can rotate according to same predetermined direction from start to finish as when electrical motor and generator operation.

24. power drive systems for vehicle according to claim 17, is characterized in that, also comprise: the second dynamotor, wherein

The main reduction gear driven gear transmission of described second dynamotor and described vehicle; Or

Described second dynamotor is connected with the first output shaft; Or

Described second dynamotor is connected with described first input shaft; Or

The main reduction gear driven gear of described vehicle is arranged on diff, and described second dynamotor is two and is separately positioned on the both sides of described diff.

25. power drive systems for vehicle according to any one of claim 1-24, is characterized in that,

Described driving engine and/or described first dynamotor are for driving pair of wheels; And

Described power drive system also comprises:

3rd dynamotor and the 4th dynamotor, described 3rd dynamotor is arranged to link with in second pair of wheel, described 4th dynamotor is arranged to link with another in described second pair of wheel, described pair of wheels is a pair in front-wheel and trailing wheel, and described second pair of wheel is other a pair in described front-wheel and described trailing wheel;

Anti-skidding synchro, described anti-skidding synchro is arranged to optionally synchronously described second pair of wheel, thus makes described second pair of wheel synchronous rotary.

26. power drive systems for vehicle according to claim 25, is characterized in that,

The first power take-off shaft that described 3rd dynamotor is corresponding is provided with the first gear, and the described wheel that described 3rd dynamotor is corresponding is connected with the first semiaxis, and described first semiaxis is provided with the second gear; Described power drive system also comprises the 3rd gear and the 4th gear, described 3rd gear and described first gears meshing and described 4th gear and described second gears meshing, described 3rd gear and described 4th gear coaxially arranged and can synchronous rotary; And

The second power take-off shaft that described 4th dynamotor is corresponding is provided with the 5th gear, and the described wheel that described 4th dynamotor is corresponding is connected with the second semiaxis, described second semiaxis is provided with the 6th gear; Described power drive system also comprises the 7th gear and octadentate wheel, described 7th gear and described 5th gears meshing and described octadentate is taken turns and described 6th gears meshing, and described 7th gear and described octadentate are taken turns coaxially arranged and can synchronous rotary; Wherein

Described anti-skidding synchro to be arranged on described first semiaxis and to be arranged to optionally engage described 6th gear; Or

Described anti-skidding synchro to be arranged on described first power take-off shaft corresponding to the 3rd dynamotor and to be arranged to optionally engage described 5th gear; Or

Described 3rd gear and described 4th gear are fixed on the first gear wheel shaft, and described 7th gear and described octadentate are taken turns and be fixed on the second gear wheel shaft; And described anti-skidding synchro to be arranged on described first gear wheel shaft and to be arranged to optionally engage described 7th gear.

27. power drive systems for vehicle according to claim 25, it is characterized in that, first power take-off shaft corresponding to described 3rd dynamotor and corresponding described wheel are coaxially connected and the second power take-off shaft corresponding to described 4th dynamotor is coaxially connected with corresponding described wheel, and described anti-skidding synchro to be arranged on the first power take-off shaft corresponding to described 3rd dynamotor and to be arranged to optionally engage the second power take-off shaft corresponding to described 4th dynamotor.

28. 1 kinds of vehicles, is characterized in that, comprise the power drive system for vehicle according to any one of claim 1-27.