CN105329085A - Vehicle power transmission system and vehicle having power transmission system - Google Patents
Vehicle power transmission system and vehicle having power transmission system Download PDFInfo
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- CN105329085A CN105329085A CN201410374622.0A CN201410374622A CN105329085A CN 105329085 A CN105329085 A CN 105329085A CN 201410374622 A CN201410374622 A CN 201410374622A CN 105329085 A CN105329085 A CN 105329085A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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Abstract
The invention discloses a vehicle and a vehicle power transmission system of the vehicle. The power transmission system comprises a differential device, two first electric generators, a first input shaft, a second input shaft, an output shaft and a second electric generator, wherein each differential device power output end is respectively connected with corresponding wheel vehicles via a half shaft; the two first electric generator are arranged on two sides of the differential device; the first and second input shafts are coaxially sleeved to each other; an engine is configured to be joined with at least one input shaft of the first and second input shafts; the output shaft is in cooperative transmission with the first and second input shafts; an output shaft output gear engaged with a main decelerator driven gear covers the output shaft; a synchronizer is arranged on the output shaft to join the output shaft output gear; the two first electric generators are in cooperative transmission with the output shaft; and the second electric generator is in cooperative transmission with the main decelerator driven gear. Two sides of the differential device of the power transmission system are respectively provided with one first electric generator, so a gravity center of the power transmission system falls in the center of a vehicle axle.
Description
Technical field
The present invention relates to automobile technical field, especially relate to a kind of power drive system for vehicle and there is the vehicle of this power drive system.
Background technology
Chinese invention patent application (application number: 201010252131.0) disclose a kind of integrated motor-driven system, it comprises a motor, one speed reducer, a diff and two transmission shafts, diff both sides connect two transmission shafts respectively, and motor is outputed power to diff by retarder.This power transmission system structure relative compact, integrated level are high.
But, contriver finds, be one due to the motor in this power drive system and output power to diff by gear reducer, cause the half shaft length of the diff left and right sides different, the center of gravity of power drive system is positioned at the side of diff, system balance is poor, and motor is difficult to remain on preferably in operation interval always.And this motor is main power, once this motor breaks down, then whole power drive system can be caused to run out of steam, cannot normal vehicle operation be driven.
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 respectively arranges first dynamotor in the both sides of diff, thus the center of gravity of power drive system can be made to be in the center of vehicle bridge as far as possible, two the first dynamotors can regulate mutually simultaneously, make the first dynamotor can be in preferably in operating range, improve driving system.
Another object of the present invention is to propose a kind of vehicle with above-mentioned power drive system.
According to the power drive system of the embodiment of the present invention, comprising: diff, described diff has two diff clutch ends, and each described diff clutch end is connected by semiaxis with the wheel of this side respectively; Main reduction gear driven gear, described main reduction gear driven gear is located on described diff; Two the first dynamotors, described two the first dynamotors lay respectively at the both sides of described diff, and each described first dynamotor coaxially empty set is arranged on the described semiaxis of this side; Driving engine; First input shaft and the second input shaft, described second input shaft is set on described first input shaft coaxially, and when carrying out power transmission between described driving engine with described input shaft, described driving engine is arranged to optionally engage with at least one in described first input shaft and described second input shaft; Output shaft, described output shaft carries out coordinating transmission with described first input shaft and described second input shaft, described output shaft overhead cover is provided with output shaft output gear, described output shaft output gear engages with described main reduction gear driven gear, and wherein said two the first dynamotors coordinate transmission with described output shaft; Synchro, described synchro to be arranged on described output shaft and to be arranged to alternatively engage described output shaft output gear; And second dynamotor, described second dynamotor is arranged to coordinate transmission with described main reduction gear driven gear.
Pass through respectively to arrange first dynamotor in diff both sides according to the power drive system of the embodiment of the present invention, power drive system is made to have preferably symmetry, its center of gravity can be positioned at the position in the middle of vehicle bridge or in the middle of vehicle bridge, two the first dynamotors are linked by output shaft simultaneously, two the first dynamotors can be regulated mutually, ensure that motor can be in preferably in operating range, improve driving efficiency.Further, the first dynamotor also has the effect of regulation output axle rotating speed, can improve the joint efficiency of synchro.Even if after one of them first dynamotor breaks down, another first dynamotor still can normally work, and meets the power needed for normal vehicle operation, plays the effect of back-up power source.
In addition, by setting up driving engine, not only increase a propulsion source, but also enriched the pattern of power drive system and improve dynamic property, and motor power output shaft can be coupled to by the conjugation of synchro from the power of driving engine, mate with the first dynamotor jointly to drive vehicle to travel or drive the first dynamotor to generate electricity.
In addition, embodiment according to a further aspect of the invention, also proposed a kind of vehicle comprising above-mentioned power drive system.
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 power drive system in accordance with 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 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 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 the power drive system 100 according to the embodiment of the present invention in detail below with reference to Fig. 1-Fig. 2, this power drive system 100 can be applied in vehicle, particularly has in the mixed dynamic power car of driving engine and motor.
Diff 101, two the first dynamotors 104, driving engine 203, first input shaft 201, second input shaft 202, output shaft 205 and synchro 209 can be comprised according to the power drive system 100 of the embodiment of the present invention.
The function of diff 101 is when turn inside diameter travels or travels on uneven road surface, driving wheels 110 can be rolled with different cireular frequencys, thus ensure two side drive wheel and ground intercropping PURE ROLLING.
Diff 101 can be gear differential, and more specifically, diff 101 can be symmetrical expression bevel differential.Symmetrical expression bevel differential 101 can comprise the parts such as differential casing, two axle side gears, planetary wheel, compensating-gear shafts (center cross), compensating-gear shaft to be arranged in differential casing and can to rotate with differential casing, can empty boasting planetary wheel on each axle journal of compensating-gear shaft, each planetary wheel engages with two axle side gears respectively.
Should be understood that, symmetrical expression bevel differential 101 has been prior art and being well known for ordinary skill in the art, does not therefore make specified otherwise for the detailed configuration of symmetrical expression bevel differential 101 and principle of work here.And, it should be noted that, above-mentioned is only that signal illustrates for diff 101 for symmetrical expression bevel differential, can not be interpreted as to be to a kind of restriction of the present invention or to imply and must adopt this symmetrical expression bevel differential according to the power drive system 100 of the embodiment of the present invention.
Diff 101 has two clutch ends, be symmetrical expression bevel differential for diff 101, two clutch end can be two axle side gears, each clutch end such as axle side gear is connected by semiaxis 108 with the wheel 110 of this side respectively, that is, one end of each semiaxis 108 is connected with axle side gear thus the two can synchronous rotary, and the other end of each semiaxis 108 is connected with the wheel 110 of respective side.
Main reduction gear driven gear 102 is located on diff 101, and particularly, main reduction gear driven gear 102 can be arranged on differential casing.Such as, main reduction gear driven gear 102 can be finishing bevel gear cuter, and this finishing bevel gear cuter by rivet or can be bolted on differential casing.
As shown in Figure 1, two the first dynamotors 104 lay respectively at the both sides of diff 101, and namely each first dynamotor 104 is all between a mouth and this side wheel 110 of diff 101.Each first dynamotor 104 coaxially empty set is arranged on the semiaxis 108 of this side, specifically, shown in composition graphs 1, the motor shaft of the first dynamotor 104 can be hollow shaft 109 structure, this hollow shaft 109 can empty set be arranged on corresponding semiaxis 108, and the rotor of the first dynamotor 104 can empty set be arranged on corresponding semiaxis 108.
Owing to being respectively arranged with first dynamotor 104 according to the power drive system 100 of the embodiment of the present invention in the both sides of diff 101, thus make can be in the middle of vehicle bridge or as far as possible in the middle of vehicle bridge according to the center of gravity of the power drive system 100 of the embodiment of the present invention, avoid center of gravity to be seriously partial to vehicle bridge side.
As shown in Figure 1, the second input shaft 202 is set on the first input shaft 201 coaxially, and the second input shaft 202 can have hollow structure, and the first input shaft 201 can have solid construction.When carrying out power transmission between driving engine 203 and input shaft, driving engine 203 is arranged to optionally engage with at least one in the first input shaft 201 and the second input shaft 202.
In other words, driving engine 203 can engage with the first input shaft 201 and disconnect with the second input shaft 202.Or driving engine 203 also can disconnect with the first input shaft 201 and engage with the second input shaft 202.Moreover driving engine 203 can engage the first input shaft 201 and the second input shaft 202 simultaneously.Certainly, be understandable that, driving engine 203 and the first input shaft 201 and the second input shaft 202 also can disconnect simultaneously, and the power transmission now between driving engine 203 and two input shafts is cut off.
The Power output that output shaft 205 may be used for propulsion source to export to diff 101, thus drives vehicle to travel.Particularly, output shaft 205 is arranged to carry out coordinating transmission with the first input shaft 201 and the second input shaft 202, such as, in certain embodiments, the transmission of power can be carried out by shift gear pair between output shaft 205 and two input shafts, this will be described in detail below in conjunction with specific embodiments, says no longer in detail here.
Output shaft output gear 208 empty set is arranged on output shaft 205, that is, output shaft output gear 208 can rotate by differential relative to output shaft 205, output shaft output gear 208 and main reduction gear driven gear 102 engaged transmission, thus power can carry out transmission between output shaft output gear 208 and diff 101.
Wherein, two the first dynamotors 104 coordinate transmission with output shaft 205, that is, power can carry out transmission between the first dynamotor 104 and output shaft 205, the power that such as the first dynamotor 104 exports can export to diff 101 by output shaft 205, but is not limited thereto.Can adopt gear transmission between first dynamotor 104 and output shaft 205, this will be described in detail below in conjunction with specific embodiments, says no longer in detail here.
Thus, power directly can be exported to wheel 110 by output shaft 205, diff 101 by the first dynamotor 104, and drive vehicle to travel, such messenger chain is shorter, and therefore driving efficiency is higher.
First dynamotor 104 also can absorb kinetic energy from wheel 110 conversely and generate electricity simultaneously.And two the first dynamotors 104 can work simultaneously, certain synchronization also can only have a motor in work, and the motor of this work can be in preferably in operating range.
In addition, even if one of them first dynamotor 104 et out of order, another one first dynamotor 104 also normally can work and provide power, ensures normal vehicle operation.
Shown in composition graphs 1, synchro 209 to be arranged on output shaft 205 and to be arranged to optionally engage output shaft output gear 208, in other words, synchro 209 is for engaging or disconnecting output shaft 205 and output shaft output gear 208, after synchro 209 engages output shaft output gear 208, output shaft output gear 208 and output shaft 205 synchronous rotary, after synchro 209 disconnects, both can rotate by differential.
Wherein in an embodiment, power drive system 100 also comprises the second dynamotor 204, second dynamotor 204 is arranged to coordinate transmission with main reduction gear driven gear 102, that is, power can carry out transmission between the second dynamotor 204 and main reduction gear driven gear 102.Such as, power directly can be exported to diff 101 to drive wheel 110 by the second dynamotor 204, but is not limited thereto.Wherein the second dynamotor 204 output power drive vehicle to diff 101 time, intermediate transmission parts are minimum, and messenger chain is the shortest, and driving efficiency is relatively high.Should be understood that, in other unshowned embodiments, power drive system 100 also can not comprise the second dynamotor 204, in other words, compared with the embodiment shown in Fig. 1, in this embodiment and Fig. 1, the difference of embodiment can only be to lack the second dynamotor 204, and all the other structures then all can be identical.
Thus, power drive system 100 according to some embodiments of the invention at least has four propulsions source, i.e. two the first dynamotors 104, driving engine 203 and second dynamotors 204, these four propulsions source can coordinate driving vehicle, this will be described in detail below in conjunction with specific embodiments, says no longer in detail here.
As preferred embodiment, the length of two semiaxis 108 of diff 101 both sides can be set to identical, and further, two the first dynamotors 104 are symmetrically arranged about diff 101.Thus, make according to the center of gravity of the power drive system 100 of the embodiment of the present invention can be positioned at better vehicle bridge midway location or near midway location, make the stability of power drive system 100 and balance better.Meanwhile, semiaxis 108 is set to the identical commonality that can also improve semiaxis 108 of length, reduces costs.
But should be understood that, the present invention is not limited to this, in other embodiments of the invention, the length of two semiaxis 108 of diff 101 both sides also can be set to difference as required.Above-mentioned semiaxis 108 is identical is only a preferred embodiment of the present invention, can not be interpreted as it is to one restriction of the present invention.
Shown in composition graphs 1, in one embodiment, driving engine 203 can be connected by double-clutch 210 with between input shaft, double-clutch 210 has input end 213, first mouth 211 and the second mouth 212, the input end 213 of double-clutch 210 can be the housing of double-clutch 210, and its first mouth 211 and the second mouth 212 can be two clutch plates.Usually, housing and two clutch plates can all disconnect, namely input end 213 and the first mouth 211 and the second mouth 212 all disconnect, when needs engage one of them clutch plate, can control housing to carry out engaging thus synchronous rotary with corresponding clutch plate, namely input end 213 engages with one of the first mouth 211 and second mouth 212.
Below the type of drive between input shaft and output shaft 205 is described in detail in conjunction with specific embodiments.As shown in Figure 1, each in first input shaft 201 and the second input shaft 202 is provided with driving gear 206, accordingly, output shaft 205 is provided with driven gear 207, driven gear 207 engages accordingly with driving gear 206, wherein the driving gear 206 of corresponding engagement forms shift gear pair with driven gear 207, carries out power transmission between input shaft and output shaft 205 by this shift gear pair.
Particularly, with reference to shown in Fig. 1, in certain embodiments, driving gear 206 on each input shaft is one and this input shaft is fixedly installed relatively, in other words, the first input shaft 201 is fixedly installed a driving gear 206, this driving gear 206 is with the first input shaft 201 synchronous axial system, similarly, the second input shaft 202 is also fixedly installed a driving gear 206, this driving gear 206 and second input shaft 202 synchronous axial system.
Accordingly, output shaft 205 is fixedly installed two driven gears 207, these two driven gears 207 engage accordingly with above-mentioned two driving gears 206 respectively, thus forming two shift gear pairs, driving engine 203 can be outputed power to diff 101 by any one in these two shift gear pairs thus.
Shown in composition graphs 1, the motor shaft of two the first dynamotors 104 is respectively provided with first motor gear 105, these two the first motor gears 105 engage accordingly with two driven gears 207 respectively.
As shown in Figure 1, output shaft output gear 208 and synchro 209 can between two driven gears 207, and now two driven gears 207 can be positioned at the two ends of output shaft 205.Or further alternatively, output shaft output gear 208 and synchro 209 are positioned at the side of two driven gears 207.
In some embodiments of the invention, the motor shaft of the second dynamotor 204 can be provided with the second motor gear 214, this second motor gear 214 and main reduction gear driven gear 102 engaged transmission, messenger chain is shorter thus, driving efficiency is higher, effectively can reduce the power waste of the second dynamotor 204 when transmission.
Shown in composition graphs 1, two the first dynamotors 104 can simultaneously as propulsion source outputting power, two parts power can in the enterprising action edge coupling of output shaft 205, power after coupling can distribute to the semiaxis 108 of both sides by diff 101, final transmission of power to wheel 110, thus drives vehicle to travel.
Alternatively, can only have in two the first dynamotors 104 one in running order, another can be in servo-actuated or generating state.Alternatively, the first dynamotor 104 can absorb braking energy when car brakeing or the first dynamotor 104 can absorb kinetic energy (dragging by wheel 110 is counter) from wheel 110, thus generate electricity.
Two the first dynamotors 104 can also regulate mutually, thus make the first dynamotor 104 can be in preferably in operating range always, improve driving efficiency, and after one of them motor breaks down, another motor still can normally work, meet the power needed for normal vehicle operation, play the effect of back-up power source.
In addition, when synchro 209 does not engage and needs to engage, first dynamotor 104 can carry out the rotating speed of regulation output axle 205 by speedup or deceleration, thus the rotating speed of coupling main reduction gear driven gear 102, make the speed coupling as far as possible of output shaft 205 and main reduction gear driven gear 102, and then facilitate the joint of synchro 209, shorten synchro 209 engagement time, reduce intermediate power loss.
Describe several typical conditions according to the power drive system 100 of the embodiment of the present invention in detail below in conjunction with Fig. 1, this typical condition at least comprises: pure electronic operating mode, series connection operating mode, operating mode in parallel, series-parallel connection operating mode, high speed traveling generating, stop generating and energy feedback operating mode.
When power drive system 100 is in pure electronic operating mode, double-clutch 210 and synchro 209 can all disconnect, and now the first dynamotor 104 quits work, and the second dynamotor 204 outputs power to diff 101, thus drive vehicle to travel.Or, synchro 209 can engage output shaft output gear 208 as required, thus the power that the first dynamotor 104 and the second dynamotor 204 export is after main reduction gear driven gear 102 place is coupled, and is distributed to the wheel 110 of both sides by diff 101.
When power drive system 100 is in series connection operating mode, the input end 213 of double-clutch 210 engages one of the first mouth 211 and second mouth 212, synchro 209 disconnects, the power that driving engine 203 exports exports to two the first dynamotors 104 by the first input shaft 201 or the second input shaft 202, thus drives two the first dynamotors 104 to generate electricity.Meanwhile, after the distribution of the power that the second dynamotor 204 exports by diff 101, export to the wheel 110 of both sides, thus drive vehicle to travel.
When power drive system 100 is in operating mode in parallel, the input end 213 of double-clutch 210 engages one of the first mouth 211 and second mouth 212, synchro 209 engages output shaft output gear 208, driving engine 203, first dynamotor 104 and the second dynamotor 204 get involved work simultaneously, driving vehicle travels, and realizes the maximization of Power output.
When power drive system 100 is in series-parallel connection operating mode, the input end 213 of double-clutch 210 engages one of the first mouth 211 and second mouth 212, synchro 209 engages output shaft output gear 208, a part of power driven two the first dynamotors 204 that driving engine 203 exports generate electricity, distribute to wheel 110 by diff 101 after another part power that driving engine 203 exports and the power coupling that the second dynamotor 204 exports, thus drive vehicle to travel.
When power drive system 100 is in high speed traveling generating, the input end 213 of double-clutch 210 engages one of the first mouth 211 and second mouth 212, synchro 209 engages output shaft output gear 208, a part of power driven first dynamotor 104 that driving engine 203 exports and the second dynamotor 204 generate electricity, another part power that driving engine 203 exports distributes to wheel 110 by diff 101, drives vehicle to travel.
When power drive system 100 is in parking generating operation mode, the input end 213 of double-clutch 210 engages one of the first mouth 211 and second mouth 212, synchro 209 disconnects, driving engine 203 high-speed cruising drives two the first dynamotors 104 to generate electricity, and now the second dynamotor 204 quits work.
When power drive system 100 is in energy feedback operating mode, vehicle is in deceleration or braking mode, double-clutch 210 disconnects, synchro 209 can engage, first dynamotor 104 can by diff 101, output shaft 205, first motor gear 105 and absorb the kinetic energy of wheel 110 thus generate electricity, and the second dynamotor 204 can be absorbed the kinetic energy of wheel 110 by diff 101, second motor gear 214 thus be generated electricity.
With reference to shown in Fig. 2, Fig. 2 is the schematic diagram of power drive system 100 in accordance with another embodiment of the present invention, in this embodiment, diff 101 is arranged between two front-wheels, for giving two front-wheels by power distribution, the trailing wheel of vehicle arranges wheel motor 301 simultaneously, drives two rear wheel respectively by two wheel motors 301.
To sum up, generally speaking, according to the power drive system 100 of the embodiment of the present invention, first dynamotor 104 is arranged respectively by the both sides at diff 101, power drive system 100 is made to have preferably symmetry, center of gravity is in the middle of vehicle bridge or closer to the position in the middle of vehicle bridge, and two the first dynamotors 104 are linked by output shaft 205, two the first dynamotors 104 can be regulated mutually, make motor can be operated in optimum scope always, and when after a motor et out of order, another motor can normally work, substantially increase stability and the reliability of power drive system 100.
In addition, drive a vehicle rapid charge, stopping for charging and the multiple drive modes such as series connection, series-parallel connection can also be realized according to the power drive system 100 of the embodiment of the present invention, thus meet driving demand better, according to the power drive system 100 of the embodiment of the present invention, there is multiple propulsion source simultaneously, dynamic property is strong, integrated level is high, and driving efficiency is high, is conducive to the balance of assembly system gravity and the layout of semiaxis.
In addition, first dynamotor 104 also plays the effect of regulation output axle 205 rotating speed, can the rotating speed of regulation output axle 205 when synchro 209 needs to engage, the rotating speed of output shaft 205 is mated with the rotating speed of main reduction gear driven gear 102, synchro 209 can be engaged fast, efficiently, shorten engagement time, improve driving efficiency, decrease degradation of energy.
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 (13)
1. for a power drive system for vehicle, it is characterized in that, comprising:
Diff, described diff has two diff clutch ends, and each described diff clutch end is connected by semiaxis with the wheel of this side respectively;
Main reduction gear driven gear, described main reduction gear driven gear is located on described diff;
Two the first dynamotors, described two the first dynamotors lay respectively at the both sides of described diff, and each described first dynamotor coaxially empty set is arranged on the described semiaxis of this side;
Driving engine;
First input shaft and the second input shaft, described second input shaft is set on described first input shaft coaxially, and when carrying out power transmission between described driving engine with described input shaft, described driving engine is arranged to optionally engage with at least one in described first input shaft and described second input shaft;
Output shaft, described output shaft carries out coordinating transmission with described first input shaft and described second input shaft, described output shaft overhead cover is provided with output shaft output gear, described output shaft output gear engages with described main reduction gear driven gear, and wherein said two the first dynamotors coordinate transmission with described output shaft;
Synchro, described synchro to be arranged on described output shaft and to be arranged to alternatively engage described output shaft output gear.
2. the power drive system for vehicle according to claim 1, is characterized in that, the motor shaft of described first dynamotor is hollow shaft and is set on corresponding described semiaxis.
3. the power drive system for vehicle according to claim 1, is characterized in that, the length of two semiaxis of described diff both sides is identical.
4. the power drive system for vehicle according to claim 1, is characterized in that, described two the first dynamotors are symmetrically arranged about described diff.
5. the power drive system for vehicle according to claim 1, is characterized in that, each in described first input shaft and described second input shaft is provided with driving gear; And
Described output shaft is provided with driven gear, and described driven gear engages accordingly with described driving gear.
6. the power drive system for vehicle according to claim 5, is characterized in that, each in described first input shaft and described second input shaft is all fixedly installed a described driving gear;
Described output shaft is fixedly installed two driven gears; And
The motor shaft of described two the first dynamotors is respectively arranged with the first motor gear, and two described first motor gears engage with described two driven gears respectively.
7. the power drive system for vehicle according to claim 6, is characterized in that, described output shaft output gear and described synchro are between described two driven gears.
8. the power drive system for vehicle according to claim 6, is characterized in that, described output shaft output gear and described synchro are positioned at the side of described two driven gears.
9. the power drive system for vehicle according to claim 1, is characterized in that, also comprise: the second dynamotor, and described second dynamotor is arranged to coordinate transmission with described main reduction gear driven gear.
10. the power drive system for vehicle according to claim 9, is characterized in that, the motor shaft of described second dynamotor is provided with the second motor gear, and described second motor gear engages with described main reduction gear driven gear.
11. power drive systems for vehicle according to claim 1, 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.
12. power drive systems for vehicle according to claim 1, is characterized in that, described diff is arranged between two front-wheels; And
Described power drive system also comprises: two wheel motors, and described two wheel motors are respectively used to driving two trailing wheels.
13. 1 kinds of vehicles, is characterized in that, comprise the power drive system for vehicle according to any one of claim 1-12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410374622.0A CN105329085B (en) | 2014-07-31 | 2014-07-31 | Power drive system for vehicle and the vehicle with the power drive system |
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| CN201410374622.0A CN105329085B (en) | 2014-07-31 | 2014-07-31 | Power drive system for vehicle and the vehicle with the power drive system |
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| CN105329085B CN105329085B (en) | 2017-12-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106740019A (en) * | 2017-01-13 | 2017-05-31 | 苏州绿控传动科技有限公司 | A kind of electric-machine directly-driven electric drive axle |
| CN108001190A (en) * | 2016-10-31 | 2018-05-08 | 比亚迪股份有限公司 | Power drive system and there is its vehicle |
| CN108016280A (en) * | 2016-10-31 | 2018-05-11 | 比亚迪股份有限公司 | Power transmission system and vehicle with same |
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| CN108001190B (en) * | 2016-10-31 | 2020-10-20 | 比亚迪股份有限公司 | Power transmission system and vehicle with same |
| CN106740019A (en) * | 2017-01-13 | 2017-05-31 | 苏州绿控传动科技有限公司 | A kind of electric-machine directly-driven electric drive axle |
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|---|---|
| CN105329085B (en) | 2017-12-12 |
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