CN105459789A - Power transmission system for vehicle and vehicle with the same - Google Patents
Power transmission system for vehicle and vehicle with the same Download PDFInfo
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- CN105459789A CN105459789A CN201410458271.1A CN201410458271A CN105459789A CN 105459789 A CN105459789 A CN 105459789A CN 201410458271 A CN201410458271 A CN 201410458271A CN 105459789 A CN105459789 A CN 105459789A
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Abstract
The invention discloses a power transmission system and a vehicle. The power transmission system comprises an engine unit, a transmission unit and a first electric power generator, a first driving motor and a second driving motor as well as an anti-skid synchronizer, wherein the engine unit and the first electric power generator are respectively connected with the transmission unit through dynamic coupling; an output part is constructed to transmit the power output by the transmission unit to a first pair of wheels of the vehicle; the first driving motor is arranged to be linked with one of a second pair of wheels; the second driving motor is arranged to be linked with the other one of the second pair of wheels; and the anti-skid synchronizer is arranged to selectively synchronize a second pair of wheels. The power transmission system disclosed by the invention is advantaged in that synchronous rotations of two wheels can be realized through the synchronizing effect of the anti-skid synchronizer when driving wheels are slipping; therefore, the wheel slipping phenomenon is greatly improved, the passing ability of the vehicle is enhanced, the cost of the power transmission system is low and the size of the power transmission system is small.
Description
Technical field
The present invention relates to technical field of vehicle, especially relate to a kind of power drive system for vehicle and there is its vehicle.
Background technology
Chinese invention patent application (application number: 89209460.5) disclose a kind of automobile drive axle with differential locking-device.This automobile drive axle has the parts such as planetary wheel, diff, semiaxis, axle sleeve, dental clutch and shift fork.It is mainly provided with above-mentioned dental clutch on one of automobile or two semiaxis, when the drive wheel of automobile skids, optionally working with fork controls dental clutch makes two semiaxis formation be rigidly connected, and makes diff locked thus loses differential function.
But, the drive axle structure of this form is when realizing differential locking-device function, need the action being realized shift fork by the switching of electromagnet electricity, thus shift fork band dynamic clutch makes two-semiaxle machinery connect firmly, thus not only complex structure, and power-transfer clutch need be fixed on the axle sleeve of differential casing and semiaxis respectively, special in when two semiaxis all arrange this power-transfer clutch, the complexity of the further increase system of meeting, takes up room large, quality is large, and cost is high.
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.
For this reason, one object of the present invention is to propose a kind of power drive system for vehicle, this power drive system is when occurring that drive wheel skids, the synchronous rotary of two wheels can be realized by the synchronous effect of anti-skidding synchro, thus greatly improve tyre skidding phenomenon, increase the crossing ability of vehicle, and cost is low, volume is little.
Another object of the present invention is to propose a kind of vehicle with power drive system described above.
According to the power drive system for vehicle of the embodiment of the present invention, comprising: engine unit; Gearbox unit, described gearbox unit is suitable for optionally being connected with described engine unit power coupling; First dynamotor, described first dynamotor is connected with described gearbox unit power coupling; Efferent, described efferent is configured to the power transmission that exports through described gearbox unit to the pair of wheels of described vehicle; First drive motor and the second drive motor, described first drive motor is arranged to link with in second pair of wheel, described second drive motor 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; And 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.
The mechanical type self-locking differential structure of conventional power transmission system can not be set according to the power drive system of the embodiment of the present invention, but functionally but can be realized the function of traditional mechanical type self-locking differential by the synchronous effect of anti-skidding synchro, make thus compacter according to the structure of the power drive system of the embodiment of the present invention, cost is lower.
According to a further aspect of the invention, provide a kind of vehicle, described vehicle comprises as above for the power drive system of vehicle.
Accompanying drawing explanation
Fig. 1 is the principle sketch of the power drive system according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of power drive system according to an embodiment of the 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 the power drive system according to another embodiment of the present invention;
Fig. 7 is the schematic diagram of the power drive system according to another embodiment of the present invention;
Fig. 8 is the schematic diagram of the power drive system according to another embodiment of the present invention;
Fig. 9 is the schematic diagram of the power drive system according to another embodiment of the present 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 two or more, 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 electrical connection; 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.
Describe in detail according to the power drive system 100 of the embodiment of the present invention below with reference to Fig. 1-Fig. 9, this power drive system 100 is applicable to vehicle, is specially adapted to in engine unit 1 and the dynamotor motor vehicle driven by mixed power that is main power source.
As shown in drawings, the parts such as engine unit 1, gearbox unit 2a (shown in composition graphs 4, Fig. 5), the first dynamotor 41, first drive motor 201, second drive motor 301 and anti-skidding synchro 503 can be comprised according to the power drive system 100 of the embodiment of the present invention.
Gearbox unit 2a is suitable for optionally being connected with engine unit 1 power coupling.The Power output that engine unit 1 can such as optionally be produced by double-clutch etc. is to gearbox unit 2a; Optionally, gearbox unit 2a also such as can will export to engine unit 1, with start the engine unit 1 from the staring torque of the first dynamotor 41.In context of the present disclosure, can carry out such as being referred to as power coupling by self or the transmission of power that produced by miscellaneous part between engine unit 1 with gearbox unit 2a and be connected.
First dynamotor 41 is connected with gearbox unit 2a power coupling.In other words, the first dynamotor 41 coordinates transmission with gearbox unit 2a, and namely the first dynamotor 41 can drive speed transmission unit 2a, and gearbox unit 2a also can utilize power driven first dynamotor 41 from such as engine unit 1.
Such as, the at least part of power produced can be exported to the first dynamotor 41 by gearbox unit 2a by engine unit 1, now the first dynamotor 41 can generate electricity, and mechanical energy can be converted to electrical power storage in accumulation of energy parts such as battery component.And for example, the electric energy from battery component can be converted to mechanical energy by the first dynamotor 41, and exports to efferent 5 to drive vehicle by gearbox unit 2a.
First dynamotor 41 is the motors with electrical motor and generator function, in the description of the present invention about " dynamotor ", if do not have specified otherwise, is all understood in this way.
Efferent 5 is configured to the power transmission through gearbox unit 2a speed change to the pair of wheels 210 of vehicle.In brief, efferent 5 is suitable for exporting the power from gearbox unit 2a, and the power of gearbox unit 2a can derive from engine unit 1, first dynamotor 41 etc., but is not limited thereto.
Synchro 6 is suitable between efferent 5 and gearbox unit 2a optionally synchronous, thus carries out power transmission or cut off power transmission.In other words, synchro 6 can export by efferent 5 power that gearbox unit 2a exports to pair of wheels 210 by synchronous effect, or synchro 6 also can open slew device unit 2a and efferent 5, and now gearbox unit 2a directly cannot output power to pair of wheels 210 by efferent 5.
As shown in Figure 1-Figure 3, power drive system 100 can also comprise the second dynamotor 42, second dynamotor 42 can be used for driving pair of wheels 210, such as, second dynamotor 42 can be wheel motor and be respectively used to drive the near front wheel and off front wheel, certain second dynamotor 42 also can be separately positioned on the both sides of diff 54, and can to become one structure with diff 54.
According to the power drive system 100 of the embodiment of the present invention, the power that engine unit 1 and/or the first dynamotor 41 export can export efferent 5 to by the synchronous effect of synchro 6, then exports to the pair of wheels 210 of vehicle by efferent 5.
Simultaneously, due to the introducing of the second dynamotor 42, second dynamotor 42 can carry out torque compensation to pair of wheels 210, also engine unit 1 and the first dynamotor 41 pairs of vehicles can be coordinated to drive simultaneously, add the operational mode of vehicle, make vehicle can adapt to different operating mode better, reach preferably fuel economy, reduce the discharge of pernicious gas simultaneously.
And, the effect of synchro 6 can be final synchronism output portion 5 and gearbox unit 2a, namely by after the synchronous effect of synchro 6, make efferent 5 can with gearbox unit 2a synchronization action, thus by efferent 5 as clutch end, by the Power output of gearbox unit 2a.And when synchro 6 non-synchronized gear transmission unit 2a and efferent 5, the power of gearbox unit 2a (by efferent 5) directly cannot export wheel to.
In brief, synchro 6 serves the object of powershift, namely synchro 6 engages, the power of gearbox unit 2a can be exported by efferent 5 and for driving wheel, and synchro 6 disconnects, gearbox unit 2a cannot by efferent 5 by transmission of power to wheel, like this by the joint of a control synchro 6 or disconnection, thus the conversion of at least part of drive pattern of car load can be realized.
Due to the particularity of application scenario, synchro 6 is compared clutch appliance and is had the following advantages herein:
A, when synchro 6 disconnects, engine unit 1, gearbox unit 2a and the first motor generator 41 is needed thoroughly to disconnect with the power of wheel, the motion (generating, driving, power torque transfer etc.) that both sides are carried out separately is independent of each other, and this demand is particularly important to the energy ezpenditure reducing vehicle.Synchro 6 can well accomplish this point, and power-transfer clutch there will be friction lining is usually separated halfway situation, adds loss due to friction and energy ezpenditure.
B, when synchro 6 engages, the synthesis of engine unit 1 and the first dynamotor 41 (after coupling) propulsive effort is needed to be passed to wheel after the moment of torsion of gearbox unit 2a amplifies, or the propulsive effort of wheel is passed to the first dynamotor 41 (generating), this just requires that dynamic coupling device herein can transmit very large moment of torsion, and has very high stability.Synchro 6 can well accomplish this point, if and select power-transfer clutch, then need the power-transfer clutch designing the ultra-large volume do not matched with whole system (driving engine, change-speed box, motor), add layout difficulty, improve weight and cost, and when torsional impact, there is the risk of skidding.
And, first dynamotor 41 can by regulating the speed of gearbox unit 2a, such as the first dynamotor 41 can the rotating speed of efferent 5 be target, by the change of rotating speed, regulate the speed of gearbox unit 2a, gearbox unit 2a is mated rapidly in time actv. mode with the speed of efferent 5, thus reduce the synchro 6 synchronous required time, reduce intermediate energy loss, engaging without moment of torsion of synchro 6 can also be realized simultaneously, drastically increase the driving efficiency of vehicle, synchronous controllability and synchronous real-time.In addition, the life-span of synchro 6 is able to further prolongation, thus reduces the cost of car load maintenance.In addition, according to power drive system 100 compact conformation of the embodiment of the present invention and control convenient.
Describe the electronic differential lock construction according to the embodiment of the present invention in detail below with reference to Fig. 1-Fig. 9, this structure can realize the pair of driving wheels that locking skids when there is tyre skidding phenomenon, thus improves skidding, improves trafficability energy.This electronic differential lock construction can be used in forerunner or rear-guard, and in the example of Fig. 1-Fig. 6 of the present invention, this electronic differential lock construction is used in rear-guard.
As shown in Fig. 1-Fig. 9, this electronic differential lock construction comprises the first drive motor 201, second drive motor 301 and anti-skidding synchro 503.Wherein, efferent 5 is configured to the power transmission that exports through gearbox unit 2a to the pair of wheels 210 of vehicle, first drive motor 201 and the second drive motor 301 are arranged for driving second pair of wheel 220, wherein pair of wheels 210 is a pair in front-wheel and trailing wheel, and the second pair of wheel 220 is other a pair in front-wheel and trailing wheel.In the example of Fig. 1-Fig. 6, efferent 5 is by the Power output of propulsion source such as engine unit 1 grade to front-wheel 210, and the first drive motor 201, second drive motor 301 is respectively used to driving two trailing wheels 220.
It should be noted that, according to some embodiments of the present invention, the first drive motor 201, second drive motor 301 can be dynamotor, but is not limited thereto.
Shown in composition graphs 1-Fig. 9, first drive motor 201 be arranged to in second pair of wheel 220 one (as, left rear wheel) interlock, in other words, first drive motor 201 can output power to this wheel to drive this vehicle wheel rotation, or the first drive motor 201 also can absorb energy from this wheel, thus generates electricity.
Similarly, second drive motor 301 be arranged to in second pair of wheel 220 another (as, off hind wheel) interlock, in other words, second drive motor 301 can output power to this another wheel to drive this another vehicle wheel rotation, or the second drive motor 301 also can absorb energy from this another wheel, thus generates electricity.In the example of Fig. 1-Fig. 6, the first drive motor 201 links with left rear wheel, and the second drive motor 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 220, thus make second pair of wheel 220 synchronous rotary, in other words, the synchronous second pair of wheel 220 (namely anti-skidding synchro 503 is in engagement state) of anti-skidding synchro 503, formed between second pair of wheel 220 and connect firmly form, thus synchronous rotary, can not rotate by differential.
And when anti-skidding synchro 503 is in off-state, first drive motor 201 and the second drive motor 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 first drive motor 201 and the second drive motor 301 also can drive this second pair of wheel 220 with identical rotational speed.
Thus, by arranging the first drive motor 201 and the second drive motor 301 individually drives second pair of wheel 220, thus the differential that can realize second pair of wheel 220 rotates, and when there is one of them tyre skidding phenomenon, anti-skidding synchro 503 can synchronous second pair of wheel 220 to make second pair of wheel 220 synchronous rotary, jointly after realizing the power coupling that two motors (can certainly be) export drive second pair of wheel 220 operation, improve tyre skidding phenomenon, improve the carrying capacity of vehicle.Especially, when there is one of them tyre skidding, the wheel that the power of the first drive motor 201 and the second drive motor 301 can drive another not skid jointly, thus another wheel enabling this not skid obtains the power of two motors, greatly improves skidding.
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 first drive motor 201, second drive motor 301 and the type of drive composition graphs 1 of second pair of wheel 220, the example of Fig. 7-Fig. 9 are described in detail.
In certain embodiments, as shown in Fig. 1, Fig. 7-Fig. 8, by gear structure indirect drive between the first drive motor 201 and corresponding wheel, similarly, between the second drive motor 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, first drive motor 201 carries out power transmission with corresponding wheel by identical gear structure with the second drive motor 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 Fig. 1, Fig. 7-Fig. 8, the gear structure adopted between the first drive motor 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 motor power output shaft 202 of the first drive motor 201 correspondence, and the first gear 401 can with the first motor power output shaft 202 synchronous rotary.Wherein, first motor power output shaft 202 can be used for exporting the power produced from the first drive motor 201, or counter for the wheel Power output dragged can be same structure to the motor shaft of the first drive motor 201, first motor power output shaft 202 and the first drive motor 201 by the first motor power output shaft 202.Certainly alternatively, the motor shaft of the first motor power output shaft 202 and the first drive motor 201 also can be two independent parts, and now the first motor power output shaft 202 is connected with the motor of the first drive motor 201.
The wheel corresponding with the first drive motor 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 Fig. 1, Fig. 7-Fig. 8, the gear structure adopted between the second drive motor 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 motor power output shaft 302 that 5th gear 405 can be arranged on the second drive motor 301 correspondence and can with the second motor power output shaft 302 synchronous rotary.Wherein, second motor power output shaft 302 can be used for exporting the power produced from the second drive motor 301, or counter for the wheel Power output dragged can be same structure to the motor shaft of the second drive motor 301, second motor power output shaft 302 and the second drive motor 301 by the second motor power output shaft 302.Certainly alternatively, the motor shaft of the second motor power output shaft 302 and the second drive motor 301 also can be two independent parts, and now the second motor power output shaft 302 is connected with the motor shaft of the second drive motor 301.
The wheel corresponding with the second drive motor 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 1, 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 220 is by synchronous rotary.
In other examples, as shown in Figure 7, anti-skidding synchro 503 to be arranged on the first motor power output 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 220 is by synchronous rotary.
In other example, as shown in Figure 8, 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 220 is by synchronous rotary.
Alternatively, in the example of figure 9, the first drive motor 201 and corresponding wheel be coaxially connected and the second drive motor 301 be coaxially connected with corresponding wheel.Further, the first drive motor 201 and the second drive motor 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 9, anti-skidding synchro 503 can be arranged on the first drive motor 201 correspondence the first motor power output shaft 202 on and be arranged to optionally engage the second motor power output shaft 302 of the second drive motor 301 correspondence.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 220 is by synchronous rotary.
In addition, need to illustrate a bit, in the embodiment of Fig. 1-Fig. 9, the power drive system 100 wherein shown in Fig. 1-Fig. 6 has forerunner and rear-guard simultaneously, forerunner is driven by propulsion source such as engine unit 1 grade, and rear-guard can be driven by the first drive motor 201, second drive motor 301.In the embodiment of Fig. 7-Fig. 9; illustrate only the another kind of variant (can certainly as forerunner) of rear-guard; that is; the rear-guard electronic differential lock construction of Fig. 1-Fig. 6 medium power driving system 100 can replace in Fig. 7-Fig. 9 any one, this drops within the present invention's scope required for protection equally.
Below speed changer structure is described in detail.According to some embodiments of the present invention, gearbox unit 2a comprises transmission power input part 21a and transmission power efferent 22a (shown in composition graphs 4, Fig. 5), transmission power input part 21a optionally engages with engine unit 1, to transmit the power that engine unit 1 produces.Transmission power efferent 22a is configured to be suitable for outputting power to efferent 5 by from the power on transmission power input part 21a by the synchronous of synchro 6.
Further, transmission power input part 21a comprises further: input shaft (such as the first input shaft 21, second input shaft 22) and the driving gear 25 be arranged on input shaft, input shaft optionally engages with engine unit 1, to transmit the power that engine unit 1 produces.In other words, when engine unit 1 needs to output power to input shaft, engine unit 1 can engage with input shaft, thus the power that engine unit 1 exports can be passed to input shaft.Engine unit 1 can pass through power-transfer clutch (such as, double-clutch 31) with the juncture of input shaft and realize, and will provide detailed description below, and repeat no more here about this part content.
Transmission power efferent 22a comprises: output shaft 24 and driven gear 26, and driven gear 26 to be arranged on output shaft 24 and to engage accordingly with the driving gear 25 on input shaft.
Output shaft 24 is configured to export power that input shaft transmits at least partially.Specifically, output shaft 24 coordinates transmission with input shaft, such as preferably, can carry out transmission between output shaft 24 and input shaft by above-mentioned driving gear 25 and driven gear 26.
Of course it is to be understood that the type of drive for output shaft 24 and input shaft is not limited to this, such as, can also be by pulley transmission mechanism, rack and pinion drive mechanism etc.To those skilled in the art, the drive mechanism that is suitable for or mode specifically can be selected according to actual conditions.
Output shaft 24 is for transmitting the power at least partially on input shaft, such as when power drive system 100 is in some transmission mode, as the first dynamotor 41 carries out generating operation mode, power now on input shaft can partly for the generating of the first dynamotor 41, another part also may be used for driving vehicle to travel, and the whole power on certain input shaft also can all for generating.
According to some embodiments of the present invention, the first dynamotor 41 and a direct-drive in input shaft and output shaft 24 or indirect drive.Here, " direct-drive " refers to the first dynamotor 41 and is directly connected with corresponding axle and carries out transmission, without intermediate transmission parts such as any such as transmission system, arrangement of clutch, drivings device, directly and in input shaft and output shaft 24 one of the mouth of such as the first dynamotor 41 is rigidly connected.Direct drive advantage resides in reduced intermediate transmission parts, reduces the loss of energy in transmission process.
" indirect drive " namely gets rid of other type of drive any outside direct-drive, such as, carry out transmission by centre parts such as transmission system, arrangement of clutch, drivings device.The advantage of indirect drive mode is that layout is convenient, and can obtain required transmitting ratio by arranging such as transmission system.
Efferent 5 can as the Power output terminal of output shaft 24, for exporting the power on output shaft 24, efferent 5 can rotate by differential relative to output shaft 24, namely can there is asynchronous situation of rotating relative to output shaft 24 in efferent 5, that is can there is speed discrepancy therebetween, not be rigidly connected.
Synchro 6 is arranged on output shaft 24.Particularly, synchro 6 can comprise splined hub 61 and sliding hub 62, splined hub 61 can be fixed on output shaft 24, splined hub 61 is with output shaft 24 synchronous axial system, sliding hub 62 relatively splined hub 61 can, along the axial action of output shaft 24, optionally to engage efferent 5, thus make efferent 5 with output shaft 24 synchronous axial system, power can pass to pair of wheels 210 from efferent 5 thus, realizes the object driving wheel.But should be understood that, the structure of synchro 6 is not limited thereto.
According to the power drive system 100 of the embodiment of the present invention, the power that engine unit 1 and/or the first dynamotor 41 export can be exported from efferent 5 by the joint of synchro 6, compact conformation, it is convenient to control, and switch in operating mode process at vehicle, may occur that synchro 6 is converted to the situation of engagement state from released state, now the first dynamotor 41 can the rotating speed of efferent 5 be target, controlled by rotating speed, the rotating speed of regulation output axle 24, output shaft 24 is mated at short notice with the rotating speed of efferent 5, facilitate the joint of synchro 6, thus substantially increase driving efficiency, decrease the transmission loss of intermediate energy simultaneously, and can realize synchro 6 engage (when namely synchro 6 engages substantially without radial frictional force or radial frictional force far below mean level in industry) without moment of torsion.
According to preferred embodiments more of the present invention, input shaft is multiple, namely two or more.The plurality of input shaft is coaxial nested setting successively, and such as, input shaft is N number of, then K input shaft is set on K-1 input shaft, wherein N >=K >=2, and the central axis of this N number of input shaft overlaps.
In the example of Fig. 1-Fig. 2, Fig. 4-Fig. 6, input shaft is two, i.e. the first input shaft 21 and the second input shaft 22, then the second input shaft 22 to be set on the first input shaft 21 and the central axes of the two.And for example, in the example of fig. 3, input shaft is three, i.e. the first input shaft 21, second input shaft 22 and the 3rd input shaft 23, then the 3rd input shaft 23 is set on the second input shaft 22, and the second input shaft 22 is set on the first input shaft 21, and the central axes of these three axles.
Engine unit 1 to input shaft transmit power or with input shaft carry out power coupling be connected time, engine unit 1 optionally engages with in multiple input shaft.In other words, when needing the power of engine unit 1 to send out, the mouth of engine unit 1 can engage with in multiple input shaft thus synchronous axial system.And when not needing engine unit 1 to work or engine unit 1 is in idling, then engine unit 1 all can disconnect with multiple input shaft, namely engine unit 1 is not connected with any one input shaft, thus disconnection is connected with the power coupling of engine unit 1.
Further, each input shaft is fixed with a driving gear 25, driving gear 25 is with input shaft synchronous rotary, driving gear 25 has multiple with the fixed form of corresponding input shaft, such as can be fixed by keyway fit system, driving gear 25 and input shaft can certainly be fixed by hot pressing, the various ways such as one-body molded, both guarantees can synchronous rotary.
Output shaft 24 is fixed with multiple driven gear 26, multiple driven gear 26 is with output shaft 24 synchronous rotary, and driven gear 26 and the fixed form of output shaft 24 also can adopt the fixed form of above-mentioned driving gear 25 and input shaft, but are not limited thereto.
But, the present invention is not limited thereto, as, on the driving gear 25 that each input shaft is arranged quantity can be not limited to one, accordingly, output shaft 24 arranges multiple driven gear 26 and has formed multiple gear, can realize to those skilled in the art.
Multiple driven gear 26 engages respectively accordingly with the driving gear 25 on multiple input shaft, according to one embodiment of present invention, the quantity of driven gear 26 and the quantity of input shaft can be identical, such as driven gear 26 is two, then input shaft is two, such two driven gears 26 can distinguish accordingly with driving gear 25 engaged transmission on two input shafts, make these two pairs of gear pairs can form two gears and carry out transmission.
According to one embodiment of present invention, can need according to transmission and three or more input shafts are set, and on each input shaft, all can fix a driving gear 25, the quantity of input shaft is more thus, the gear that can carry out transmission is more, the scope of the transmitting ratio of this power drive system 100 is larger, thus adapts to the requirement of various for transmission.
Such as, according to specific embodiments more of the present invention, as shown in Fig. 1-Fig. 2, Fig. 4-Fig. 6, multiple input shaft comprises the first input shaft 21 and the second input shaft 22, second input shaft 22 is set on the first input shaft 21, and the second input shaft 22 is hollow shafts, and the first input shaft 21 is preferably solid axle, certainly alternatively, the first input shaft 21 also can be hollow shaft.Accordingly, output shaft 24 is provided with two driven gears 26, these two driven gears 26 engage accordingly with the driving gear 25 on the first input shaft 21 and the driving gear 25 on the second input shaft 22 respectively, thus form two shift gear pairs.
First input shaft 21 can adopt bearing to support, and in order to ensure ride comfort during the first input shaft 21 transmission, bearing is preferably multiple and can arranges along the position that the axis of the first input shaft 21 is not affecting remaining part assembling.Similarly, the second input shaft 22 also can adopt bearing to support, and is not described in detail here.
Further, as shown in Fig. 1-Fig. 2, Fig. 4-Fig. 6, engine unit 1 and be provided with double-clutch 31 between the first input shaft 21 and the second input shaft 22, double-clutch 31 can adopt existing dry dual clutch 31 or wet-type dual-clutch 31.
Double-clutch 31 has input end 313, first mouth 311 and the second mouth 312, engine unit 1 is connected with the input end 313 of double-clutch 31, specifically, engine unit 1 can pass through the various ways such as flywheel, bumper or reverse plate and is connected with the input end 313 of double-clutch 31.
First mouth 311 of double-clutch 31 is connected with the first input shaft 21, thus this first mouth 311 and first input shaft 21 synchronous rotary.Second mouth 312 of double-clutch 31 is connected with the second input shaft 22, thus this second mouth 312 and second input shaft 22 synchronous rotary.
Wherein, the input end 313 of double-clutch 31 can be the housing of double-clutch 31, and its first mouth 311 and the second mouth 312 can be two clutch plates.Usually, housing and two clutch plates can all disconnect, namely input end 313 and the first mouth 311 and the second mouth 312 all disconnect, 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 313 engages with one of the first mouth 311 and second mouth 312, thus the power that input end 313 transmits can by an output in the first mouth 311 and the second mouth 312.
Be to be understood that, the concrete engagement state of double-clutch 31 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 with the Three models that two mouths all disconnect and input end engages with one of two mouths at input end.
As shown in Fig. 1-Fig. 2, Fig. 4-Fig. 6, due to the cross-compound arrangement that input shaft is concentric, and each input shaft is only provided with a driving gear 25, therefore this gearbox unit 2a has two different gears, engine unit 1 can output power to efferent 5 by these two gears, synchro 6 can be in engagement state always, namely engages output shaft 24 and efferent 5.
When switching between gear, synchro 6 is without the need to engaging other gear as will first disconnect moving axially with the synchronizer structure of traditional arrangement mode again, and only need control the engaging/disengaging state of double-clutch 31 simply, now synchro 6 can be in engagement state always, like this when engine unit 1 outputs power to efferent 5, only need control a gearshift power element and double-clutch 31, and without the need to control synchro 6, greatly can simplify control policy like this, reduce the engaging/disengaging number of times of synchro 6, improve the life-span of synchro 6.
The mode that is connected of the first dynamotor 41 and gearbox unit 2a is described below.According to some embodiments of the present invention, the first dynamotor 41 is arranged to coordinate transmission with in driving gear 25 and driven gear 26, and in other words, the first dynamotor 41 is and an indirect drive in input shaft and output shaft 24.
Further, alternatively, between first dynamotor 41 and respective gears, can intermediate transmission mechanism be set, this transmission device can be Worm and worm-wheel gearing, one or more levels gear pair transmission device, chain wheel driving mechanism etc., or when non-contravention, can also be the combination of above-mentioned multiple transmission device, such first dynamotor 41 can be arranged in diverse location as required, reduces the layout difficulty of the first dynamotor 41.
Consider the problem of being convenient to spatially arrange, according to one embodiment of present invention, the first dynamotor 41 can carry out transmission by an intermediate gear 411.Such as, in the example of Fig. 1-Fig. 3, by intermediate gear 411 indirect drive between the driving gear 25 on the first dynamotor 41 and the second input shaft 22.
But the present invention is not limited to this.In other not shown embodiment of the present invention, the first dynamotor 41 also can be arranged to be connected with in output shaft 24 with the first input shaft 21.First dynamotor 41 adopts the mode be directly connected with corresponding axle, and the structure of power drive system 100 can be made compacter, can also reduce the circumferential size of power drive system 100 simultaneously, be convenient to be arranged in the cabin of vehicle.
Or according to one embodiment of present invention, the first dynamotor 41 and the first input shaft 21 can be coaxially arranged, and the first dynamotor 41 also can be coaxially arranged with engine unit 1.Here, " the first dynamotor 41 is coaxially arranged with engine unit 1 " should be understood to: the pivot center of the rotor of the first dynamotor 41 overlaps substantially with the rotation axis of the bent axle of engine unit 1.Thus, make the structure of power drive system 100 compacter.Moreover the first dynamotor 41 also coaxially can be connected with output shaft 24.
According to some embodiments of the present invention, efferent 5 can comprise output gear 51 and engage gear ring 52, output gear 51 and output shaft 24 can relatively rotate i.e. differential and rotate, and engage gear ring 52 and fix with output gear 51, namely engage gear ring 52 and output gear 51 synchronous axial system.
Thus, when synchro 6 needs efferent 5 to engage with output shaft 24, the sliding hub 62 of synchro 6 can axially to the direction motion engaging gear ring 52, after efferent 5 with the synchronization of output shaft 24, sliding hub 62 can engage with engaging gear ring 52, thus output shaft 24, formed between synchro 6 and efferent 5 three and be rigidly connected, and then three's synchronous rotary.
In order to reduce intermediate transmission parts, reduce degradation of energy, and improve the driving efficiency of power drive system 100 as much as possible, as preferred mode, output gear 51 can be main reduction gear driving gear, this main reduction gear driving gear can directly engage with main reduction gear driven gear 53 thus output power, drive wheel.But the present invention is not limited to this, other centre part for transmission also can be set between output gear 51 and main reduction gear.
As described in Fig. 1-Fig. 6, diff 54 is provided with between pair of wheels 210, diff 54 coordinates transmission with efferent 5, specifically, in certain embodiments, diff 54 is provided with main reduction gear driven gear 53, as mentioned above, output gear 51 can be main reduction gear driven gear, main reduction gear driving gear directly engages with main reduction gear driven gear 53, thus power can successively by being passed to two front-wheels 210 after main reduction gear driving gear, main reduction gear driven gear 53 and diff 54.
Two front-wheel 210 required drives are reasonably distributed in the effect of diff 54, and diff 54 can be gear differential, full locking differential, torsional differential gear etc., can also be preferably power-locking differential certainly.For a person skilled in the art, suitable diff can be selected according to different automobile types.
As a kind of variant embodiment of the power drive system 100 described in above-described embodiment, as shown in Figure 3, multiple input shaft can also comprise three axles, i.e. the first input shaft 21, second input shaft 22 and the 3rd input shaft 23, second input shaft 22 is set on the first input shaft 21, and the 3rd input shaft 23 is set on the second input shaft 22.
In this variant embodiment, power drive system 100 comprises three power-transfer clutchs 32 further, three power-transfer clutchs 32 have input end 324, first mouth 321, second mouth 322 and the 3rd mouth 323, engine unit 1 is connected with the input end 324 of three power-transfer clutchs 32, and the first mouth 321 of three power-transfer clutchs 32 is connected with the first input shaft 21, the second mouth 322 of three power-transfer clutchs 32 is connected with the second input shaft 22 and the 3rd mouth 323 of the 3rd power-transfer clutch 32 is connected with the 3rd input shaft 23.
Similarly, the input end of three power-transfer clutchs 32 can be its housing, and its three mouths can be three clutch plates, and input end can engage with one of three mouths, or input end and three mouths all disconnect.Be understandable that, principle of work and the double-clutch 31 of three power-transfer clutchs 32 are similar to, and repeat no more here.
As the another kind of variant embodiment of the power drive system 100 described in above-described embodiment, as Figure 4-Figure 6, in this power drive system 100, driven gear 26 is connection gear structure, this connection gear structure 26 empty set is arranged on output shaft 24, and namely the two can rotate by differential.Wherein, synchro 6 to be arranged on output shaft 24 and selectively to engage with this connection gear structure 26.
The driven gear 26 of connection gear structure has multiple gear part, and multiple gear part engages accordingly with the driving gear on multiple input shaft respectively.
Such as, shown in Fig. 4-Fig. 6, particularly, input shaft is two, namely the first input shaft 21 and the second input shaft 22, each input shaft is fixed with a driving gear 25, and connection gear structure 26 is dual gear, this dual gear 26 has the first gear part 261 and the second gear part 262, first gear part 261 and the second gear part 262 and engages accordingly with two driving gears 25 respectively.
In this embodiment, as Figure 4-Figure 6, still connect by double-clutch 31 between engine unit 1 two input shafts, namely adopt and connection mode identical between engine unit 1 and input shaft in Fig. 1-Fig. 2, here succinct object is in, repeat no more, please with reference to above-mentioned about engine unit 1, description between double-clutch 31 and input shaft.
Power drive system 100 in this embodiment is when carrying out power transmission, synchro 6 can engage dual gear 26, thus the power that engine unit 1 and/or the first dynamotor 41 export can be exported by efferent 5 (such as, main reduction gear driving gear 51).
In these some embodiments, efferent 5 is fixed on output shaft 24, and efferent 5 can be configured to output gear, such as, be configured to main reduction gear driving gear, and can directly and main reduction gear driven gear engaged transmission.
At this, some execute in example, the effect of synchro 6 can be final synchronous connection gear structure 26 and output shaft 24, namely by after the synchronous effect of synchro 6, make connection gear structure 26 and output shaft 24 synchronization action, thus by efferent 5 as clutch end, by the Power output of engine unit 1 and/or the first dynamotor 41.And when synchro 6 does not synchronously join gear structure 26 and output shaft 24, the power of engine unit 1 and/or the first dynamotor 41 (by efferent 5) directly cannot export wheel to.
In brief, synchro 6 serves the object of powershift, namely synchro 6 engages, the power of engine unit 1 and/or the first dynamotor 41 can be exported by efferent 5 and for driving wheel, and synchro 6 disconnects, the power of engine unit 1 and/or the first dynamotor 41 cannot by efferent 5 by transmission of power to wheel, pass through joint or the disconnection of a control synchro 6 like this, thus the conversion of whole drive mode can be realized.
And, first dynamotor 41 can the rotating speed of efferent 5 be target, by the change of rotating speed, regulate the speed of connection gear structure 26, connection gear structure 26 is mated rapidly in time actv. mode with the speed of output shaft 24, thus reduces the synchro 6 synchronous required time, reduce intermediate energy loss, engaging without moment of torsion of synchro 6 can also be realized simultaneously, drastically increase the driving efficiency of vehicle, synchronous controllability and synchronous real-time.In addition, the life-span of synchro 6 is able to further prolongation, thus reduces the cost of car load maintenance.
In addition, adopt connection gear structure 26, the structure of power drive system 100 can be made compacter, be convenient to arrange.Decrease the number of driven gear, and then reduce the axial dimension of power drive system, be beneficial to the reduction of cost, also reduce layout difficulty simultaneously.
And synchro 6 can by its motion of an independent fork controls, and make rate-determining steps simple, reliability of service is higher.
With reference to shown in Fig. 4-Fig. 6, about the type of drive of the first dynamoelectric and power generation 41 and input shaft or output shaft, particularly, the mouth of the first dynamotor 41 be arranged to can with one of them driving gear direct-drive or indirect drive.
Such as, power drive system 100 also comprises tween drive shaft 43, tween drive shaft 43 is fixedly installed the first countershaft-gear 431 and the second countershaft-gear 432, first countershaft-gear 431 and the second middle of taking out in gear 432 engage with one of them driving gear 25, such as in the example of Fig. 4-Fig. 5, take out gear 431 in the middle of first to engage with the driving gear 25 on the second input shaft 22, but the present invention is not limited thereto.
According to some embodiments of the present invention, another direct-drive in the mouth of the first dynamotor 41 and the first countershaft-gear 431 and the second countershaft-gear 432 or by intermediate idler 44 indirect drive.Such as in the example of fig. 4, between the mouth of the first dynamotor 41 and the second countershaft-gear 432 by intermediate idler 44 indirect drive.And for example in the example of hgure 5, the mouth of the first dynamotor 41 directly with the second countershaft-gear 432 engaged transmission.
With reference to shown in Fig. 6, the mouth of the first dynamotor 41 directly engage with a gear part in connection gear structure 26, direct and the first gear part 261 engaged transmission of the mouth of such as the first dynamotor 41.
But should be understood that, the present invention is not limited to this, for the position of the first dynamotor 41, can set according to actual needs and flexibly.
Shown in Fig. 4-Fig. 6, the independent moment of torsion input being responsible for engine unit 1 of the first gear part 261, the second gear part 262 can be responsible for the moment of torsion input of engine unit 1 and the first dynamotor 41 simultaneously, certainly also can an individual responsibility wherein side.
The side towards synchro 6 of connection gear structure 26 can be fixedly installed and engage gear ring 52 (shown in composition graphs 1), synchro 6 is suitable for engaging this joint gear ring 52, thus is rigidly connected connection gear structure 26 and output shaft 24 with synchronous axial system.
In addition, as another kind of variant, multiple input shaft can comprise the first input shaft 21, second input shaft 22 and the 3rd input shaft 23, second input shaft 22 is set on the first input shaft 21 coaxially, 3rd input shaft 23 is set on the second input shaft 22 coaxially, each input shaft is all fixedly installed a driving gear 25, accordingly, connection gear structure is triple gear, this triple gear has the first gear part, second gear part and the 3rd gear part, these three gear part engage accordingly with the driving gear on three input shafts respectively, thus form three pairs of shift gear pairs.
Further, be connected by three power-transfer clutchs between engine unit 1 and this three input shafts, namely the connection mode identical with between engine unit in Fig. 31 and input shaft is adopted, here succinct object is in, repeat no more, please with reference to above-mentioned about the description between engine unit 1, three power-transfer clutch and input shaft.
Generally speaking, according to the power drive system 100 of the embodiment of the present invention, powershift is carried out owing to adopting synchro 6, and synchro 6 has, and volume is little, structure simple, bear the plurality of advantages such as moment of torsion is large, driving efficiency is high, therefore reduce to some extent according to the volume of the power drive system 100 of the embodiment of the present invention, structure is compacter, and driving efficiency is high and can meet Large-torsion transmisson requirement.
Simultaneously, compensated by the speed governing of the first dynamotor 41, synchro 6 can be realized engage without moment of torsion, ride comfort is better, and engaging speed and dynamic response faster, compare conventional clutch type of drive, larger moment of torsion can be born and failure phenomenon can not occur, greatly increase stability and the reliability of transmission.
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 (24)
1. for a power drive system for vehicle, it is characterized in that, comprising:
Engine unit;
Gearbox unit, described gearbox unit is suitable for optionally being connected with described engine unit power coupling;
First dynamotor, described first dynamotor is connected with described gearbox unit power coupling;
Efferent, described efferent is configured to the power transmission that exports through described gearbox unit to the pair of wheels of described vehicle;
First drive motor and the second drive motor, described first drive motor is arranged to link with in second pair of wheel, described second drive motor 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; And
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.
2. the power drive system for vehicle according to claim 1, is characterized in that, described first drive motor and corresponding described wheel and described second drive motor with corresponding described wheel all by gear structure indirect drive.
3. the power drive system for vehicle according to claim 2, is characterized in that,
The first motor power output shaft that described first drive motor is corresponding is provided with the first gear, and the described wheel that described first drive motor 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 motor power output shaft that described second drive motor is corresponding is provided with the 5th gear, and the described wheel that described second drive motor 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.
4. the power drive system for vehicle according to claim 3, is characterized in that, described anti-skidding synchro to be arranged on described first semiaxis and to be arranged to optionally engage described 6th gear.
5. the power drive system for vehicle according to claim 3, is characterized in that, described anti-skidding synchro to be arranged on described first motor power output shaft and to be arranged to optionally engage described 5th gear.
6. the power drive system for vehicle according to claim 3, is characterized in that, 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.
7. the power drive system for vehicle according to claim 1, is characterized in that, described first drive motor and corresponding described wheel are coaxially connected and described second drive motor is coaxially connected with corresponding described wheel.
8. the power drive system for vehicle according to claim 7, it is characterized in that, described anti-skidding synchro to be arranged on the first motor power output shaft corresponding to described first drive motor and to be arranged to optionally engage the second motor power output shaft corresponding to described second drive motor.
9. the power drive system for vehicle according to claim 1, is characterized in that, also comprise:
Synchro, described synchro is arranged to be suitable between described efferent and described gearbox unit optionally synchronous to carry out power transmission or to cut off power transmission.
10. the power drive system for vehicle according to claim 9, is characterized in that, described gearbox unit comprises:
Transmission power input part, described transmission power input part optionally engages with described engine unit, to transmit the power that described engine unit produces; And
Transmission power efferent, described transmission power efferent be configured to be suitable for by from the power on described transmission power input part by the synchronous of described synchro by described Power output to described efferent.
11. power drive systems according to claim 10, is characterized in that, described transmission power input part comprises further: input shaft, and described input shaft optionally engages with described engine unit; Driving gear, described driving gear is arranged on described input shaft; And
Described transmission power efferent comprises further: output shaft; Driven gear, described driven gear to be arranged on described output shaft and to engage accordingly with the described driving gear on described input shaft.
12. power drive systems according to claim 11, it is characterized in that, described synchro is arranged on described output shaft, described efferent can rotate by differential relative to described output shaft, described synchro optionally engages described efferent, rotates with described output shaft synchronous to make described efferent.
13. power drive systems for vehicle according to claim 12, it is characterized in that, described input shaft is multiple, described multiple input shaft is coaxial nested setting successively, each described input shaft is fixed with a driving gear.
14. power drive systems for vehicle according to claim 13, is characterized in that, described multiple input shaft comprises the first input shaft and the second input shaft, and described second input shaft is set on described first input shaft; And
Described output shaft is fixedly installed two driven gears, described two driven gears engage accordingly with the driving gear on described first input shaft and on described second input shaft respectively.
15. power drive systems for vehicle according to claim 14, is characterized in that, also comprise:
Double-clutch, described double-clutch has input end, the first mouth and the second mouth, described engine unit is connected with the input end of described double-clutch, and the first mouth of described double-clutch is connected with described first input shaft and the second mouth of described double-clutch is connected with described second input shaft.
16. power drive systems for vehicle according to claim 13, it is characterized in that, described multiple input shaft comprises the first input shaft, the second input shaft and the 3rd input shaft, described second input shaft is set on described first input shaft, and described 3rd input shaft is set on described second input shaft; And
Described output shaft is fixedly installed three driven gears, described three driven gears engage accordingly with the driving gear on described first input shaft, on described second input shaft and described 3rd input shaft respectively.
17. power drive systems for vehicle according to claim 16, is characterized in that, also comprise:
Three power-transfer clutchs, described three power-transfer clutchs have input end, the first mouth, the second mouth and the 3rd mouth, described engine unit is connected with the input end of described three power-transfer clutchs, and the first mouth of described three power-transfer clutchs is connected with described first input shaft, the second mouth of described three power-transfer clutchs is connected with described second input shaft and the 3rd mouth of described three power-transfer clutchs is connected with described 3rd input shaft.
18. power drive systems according to claim 11, it is characterized in that, described driven gear is for joining gear structure and can rotating by differential relative to described output shaft, described gear structure has multiple gear part, and described multiple gear part engages accordingly with the driving gear on described multiple input shaft respectively;
Described efferent is fixed on described output shaft;
Each described input shaft is fixedly installed a driving gear; And
Described synchro to be arranged on described output shaft and to be arranged to optionally engage described gear structure.
19. power drive systems for vehicle according to claim 18, is characterized in that,
Described multiple input shaft comprises the first input shaft and the second input shaft, and described second input shaft is set on described first input shaft; And
Described gear structure is dual gear, and described dual gear has the first gear part and the second gear part, and described first gear part and described second gear part engage accordingly with two described driving gears respectively.
20. power drive systems for vehicle according to claim 19, is characterized in that, also comprise:
Double-clutch, described double-clutch has input end, the first mouth and the second mouth, described engine unit is connected with the input end of described double-clutch, and the first mouth of described double-clutch is connected with described first input shaft and the second mouth of described double-clutch is connected with described second input shaft.
21. power drive systems for vehicle according to claim 18, it is characterized in that, described multiple input shaft comprises the first input shaft, the second input shaft and the 3rd input shaft, described second input shaft is set on described first input shaft, and described 3rd input shaft is set on described second input shaft; And
Described gear structure is triple gear, and described triple gear has the first gear part, the second gear part and the 3rd gear part, and described first gear part, described second gear part and the 3rd gear part engage accordingly with three described driving gears respectively.
22. power drive systems for vehicle according to claim 21, is characterized in that, also comprise:
Three power-transfer clutchs, described three power-transfer clutchs have input end, the first mouth, the second mouth and the 3rd mouth, described engine unit is connected with the input end of described three power-transfer clutchs, and the first mouth of described three power-transfer clutchs is connected with described first input shaft, the second mouth of described three power-transfer clutchs is connected with described second input shaft and the 3rd mouth of described three power-transfer clutchs is connected with described 3rd input shaft.
23. power drive systems for vehicle according to claim 1, it is characterized in that, described efferent is configured to main reduction gear driving gear, described main reduction gear driving gear engages with the main reduction gear driven gear be arranged on diff, and described diff is power-locking differential.
24. 1 kinds of vehicles, is characterized in that, comprise the power drive system according to any one of claim 1-21.
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| CN111655522A (en) * | 2017-12-15 | 2020-09-11 | 瑞维安知识产权控股有限责任公司 | Electric vehicle drive unit |
| CN109664755A (en) * | 2018-12-28 | 2019-04-23 | 北汽福田汽车股份有限公司 | Transfer gear, the control system of transfer gear, transmission system and vehicle |
| CN113348101A (en) * | 2019-03-01 | 2021-09-03 | 舍弗勒技术股份两合公司 | Hybrid power system |
| CN113348101B (en) * | 2019-03-01 | 2023-08-01 | 舍弗勒技术股份两合公司 | Hybrid power system |
| CN110361191A (en) * | 2019-07-30 | 2019-10-22 | 苏州英特模汽车科技有限公司 | A kind of efficient test macro and its test method of electric drive axle power assembly |
| CN110361191B (en) * | 2019-07-30 | 2023-12-19 | 苏州英特模科技股份有限公司 | Efficient test system and test method for electric drive axle power assembly |
| CN112298160A (en) * | 2020-10-30 | 2021-02-02 | 洪智 | Driving device, driving method of hybrid truck and hybrid truck |
| CN112937293A (en) * | 2021-03-03 | 2021-06-11 | 张强 | All-wheel drive system |
| CN114435100A (en) * | 2022-02-21 | 2022-05-06 | 浙江吉利控股集团有限公司 | Vehicle power system and vehicle |
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