CN105459815A - Power transmission system for vehicle and vehicle with the power transmission system - Google Patents
Power transmission system for vehicle and vehicle with the power transmission system Download PDFInfo
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- CN105459815A CN105459815A CN201410459645.1A CN201410459645A CN105459815A CN 105459815 A CN105459815 A CN 105459815A CN 201410459645 A CN201410459645 A CN 201410459645A CN 105459815 A CN105459815 A CN 105459815A
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Abstract
The invention discloses a power transmission system for a vehicle and the vehicle with the power transmission system. The power transmission system comprises a pair of wheels, a first electric power motor and a second electric power motor as well as an anti-skid synchronizer, wherein the wheels can rotate in a differential way; the first electric power generator is arranged to be linked with one of the wheels; the second electric power generator is arranged to be linked with the other one of the wheels; and the anti-skid synchronizer is arranged to selectively synchronize the pair of wheels so that the pair of wheels can synchronously rotate. According to the invention, a mechanical self-locking differential mechanism structure of the traditional power transmission system can be not arranged in the power transmission system; however, the function of the traditional mechanical self-locking differential mechanism can be realized through the synchronizing effect of the anti-skid synchronizer in function. Therefore, the power transmission system disclosed by the embodiment of the invention has the advantages of compact structure and low cost.
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: 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 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: can differential rotate pair of wheels; First dynamotor and the second dynamotor, described first dynamotor is arranged to link with in described pair of wheels, and described second dynamotor is arranged to link with another in described pair of wheels; And anti-skidding synchro, described anti-skidding synchro is arranged to optionally synchronous described pair of wheels, thus makes described pair of wheels 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.
The vehicle of embodiment according to a further aspect of the invention, comprises as above for the power drive system of vehicle.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of power drive system according to an embodiment of the invention;
Fig. 2 is the schematic diagram of the power drive system according to another embodiment of the present invention;
Fig. 3 is the schematic diagram of the power drive system according to 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.
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.
The power drive system 100 according to the embodiment of the present invention is described in detail below with reference to Fig. 1-Fig. 4, this power drive system 100 is applicable in vehicle, this pair of driving wheels of locking when there is wheel 203,303 skidding can be realized, thus improve skidding, improve trafficability energy.
Pair of wheels 203,303, first dynamotor 201, second dynamotor 301 and anti-skidding synchro 503 can be comprised according to the power drive system 100 of the embodiment of the present invention.
Pair of wheels 203,303 can rotate by differential, in other words, these two wheels 203,303 independently can rotate with different rotating speeds, non-interference, such as when anti-skidding synchro 503 is in off-state, can be between these two wheels 203,303 and non-ly connect firmly state, now these two wheels 203,303 can rotate by differential.
First dynamotor 201 is arranged to link with one of them wheel, in other words, first dynamotor 201 coordinates transmission with the wheel of in this pair of wheels 203, such as, first dynamotor 201 can output power and to rotate to drive this wheel 203 to this wheel, and for example, the first dynamotor 201 also can absorb energy from this wheel 203, thus generates electricity.
Similarly, second dynamotor 301 is arranged to link with another wheel 303 in this pair of wheels, in other words, another wheel 303 of second dynamotor 301 and this coordinates transmission, such as, the second dynamotor 301 can output power and to rotate to drive this another wheel 303 to this another wheel 303, and for example, second dynamotor 301 also can absorb energy from this another wheel 303, thus generates electricity.
Anti-skidding synchro 503 is arranged to optionally this pair of wheels 203,303 synchronous, thus make this pair of wheels 203,303 synchronous rotary, in other words, after anti-skidding synchro 503 this pair of wheels 203,303 synchronous (namely anti-skidding synchro 503 is in engagement state), formed between this pair of wheels 203,303 and connect firmly form, thus synchronous rotary, can not rotate by differential.And when anti-skidding synchro 503 is in off-state, first dynamotor 201 and the second dynamotor 301 can drive corresponding wheel with different rotational speed respectively, realize the differential rotating function of two wheels 203,303, certainly, the first dynamotor 201 and the second dynamotor 301 also can drive this pair of wheels 203,303 with identical rotational speed.
Thus, according to the power drive system 100 of the embodiment of the present invention, by arranging the first dynamotor 201 and the second dynamotor 301 individually drives two wheels 203, 303, thus two wheels 203 can be realized, the differential of 303 rotates, and when there is one of them tyre skidding phenomenon, anti-skidding synchro 503 can synchronous two wheels 203, 303 to make two wheels 203, 303 synchronous rotaries, jointly two wheels 203 are driven after realizing the power coupling of two motors outputs, 303 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 dynamotor 201 and the second dynamotor 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, the mechanical type self-locking differential structure of conventional power transmission system can not be set according to the power drive system 100 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 503, make thus compacter according to the structure of the power drive system 100 of the embodiment of the present invention, cost is lower.
Below the example of type of drive composition graphs 1-Fig. 4 of dynamotor and wheel is described in detail.
In certain embodiments, as Figure 1-Figure 4, by gear structure indirect drive between the first dynamotor 201 and corresponding wheel 203, similarly, between the second dynamotor 301 and corresponding wheel 303, 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, two dynamotors carry out power transmission with corresponding wheel 203,303 by identical gear structure, 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 203,303 or the position near centre better, improve stability and the reliability of power drive system 100.
Further, as optional embodiment, the gear structure adopted between the first dynamotor 201 and corresponding wheel 203 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 dynamotor 201 correspondence, and the first gear 401 can with the first motor power output shaft 202 synchronous rotary.The wheel 203 corresponding with the first dynamotor 201 is connected with the first semiaxis 204, second gear 402 to be arranged on the first semiaxis 204 and can with the first semiaxis 204 synchronous rotary, 3rd gear 403 engages with the first gear 401 and the 4th gear 404 engages with the second gear 402, and the 3rd gear 403 and the 4th gear 404 coaxially arranged and can synchronous rotary.
Similarly, the gear structure adopted between the second dynamotor 301 and corresponding wheel 303 can comprise the 5th gear 405, the 6th gear 406, the 7th gear 407 and octadentate and take turns 408 4 gears.On the second motor power output shaft 302 that 5th gear 405 can be arranged on the second dynamotor 301 correspondence and can with the second motor power output shaft 302 synchronous rotary.The wheel 303 corresponding with the second dynamotor 301 is connected with the second semiaxis 304,6th gear 406 to be arranged on the second semiaxis 304 and can with the second semiaxis 304 synchronous rotary, 7th gear 407 engages with the 5th gear 405 and octadentate is taken turns 408 and engaged with the 6th gear 406, and the 7th gear 407 and octadentate are taken turns 408 synchronization arrangement and can synchronous rotary.
Preferably, the first motor power output shaft 202 can be the motor shaft of the first dynamotor 201, and the second motor power output shaft 302 can be the motor shaft of the second dynamotor 301.Certainly, alternatively, the motor shaft of the first motor power output shaft 202 and the first dynamotor 201 also can be two independent parts, and now the first motor power output shaft 202 is connected with the motor shaft of the first dynamotor 201.Similarly, the motor shaft of the second motor power output shaft 302 and the second dynamotor 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 dynamotor 301.
Preferably, 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 one example, 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 pair gear is by synchronous rotary.
In another example, as shown in Figure 2, 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 pair gear is by synchronous rotary.
In another example, as shown in Figure 3, 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 pair gear is by synchronous rotary.
Alternatively, in the example of fig. 4, the first dynamotor 201 and corresponding wheel 203 are coaxial is connected and the second dynamotor 301 is coaxially connected with corresponding wheel 303.Further, the first dynamotor 201 and the second dynamotor 301 can be all wheel motors, and messenger chain is short thus, and transmission degradation of energy is few, and driving efficiency is high.
Further, as shown in Figure 4, anti-skidding synchro 503 can be arranged on the first dynamotor 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 dynamotor 301 correspondence.Thus, after anti-skidding synchro 503 engages, this pair gear is by synchronous rotary.
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 (11)
1. for a power drive system for vehicle, it is characterized in that, comprising:
Can differential rotate pair of wheels;
First dynamotor and the second dynamotor, described first dynamotor is arranged to link with in described pair of wheels, and described second dynamotor is arranged to link with another in described pair of wheels; And
Anti-skidding synchro, described anti-skidding synchro is arranged to optionally synchronous described pair of wheels, thus makes described pair of wheels synchronous rotary.
2. the power drive system for vehicle according to claim 1, is characterized in that, described first dynamotor and corresponding described wheel and described second dynamotor 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 dynamotor is corresponding is provided with the first gear, and the described wheel that described first dynamotor is corresponding is connected with the first semiaxis, and described first semiaxis is provided with the second gear; Described power drive system also comprises: the 3rd gear and the 4th gear, described 3rd gear and described first gears meshing and described 4th gear and described second gears meshing, described 3rd gear and described 4th gear coaxially arranged and can synchronous rotary; And
The second motor power output shaft that described second dynamotor is corresponding is provided with the 5th gear, and the described wheel that described second dynamotor is corresponding is connected with the second semiaxis, described second semiaxis is provided with the 6th gear; Described power drive system also comprises: the 7th gear and octadentate wheel, described 7th gear and described 5th gears meshing and described octadentate is taken turns and described 6th gears meshing, and described 7th gear and described octadentate are taken turns coaxially arranged and can synchronous rotary.
4. 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 are fixed on the second gear wheel shaft.
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 semiaxis and to be arranged to optionally engage described 6th gear.
6. 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.
7. the power drive system for vehicle according to claim 4, is characterized in that, described anti-skidding synchro to be arranged on described first gear wheel shaft and to be arranged to optionally engage described 7th gear.
8. the power drive system for vehicle according to claim 1, is characterized in that, described first dynamotor and corresponding described wheel are coaxially connected and described second dynamotor is coaxially connected with corresponding described wheel.
9. the power drive system for vehicle according to claim 8, it is characterized in that, described anti-skidding synchro to be arranged on the first motor power output shaft corresponding to described first dynamotor and to be arranged to optionally engage the second motor power output shaft corresponding to described second dynamotor.
10. the power drive system for vehicle according to claim 3 or 9, is characterized in that, described first motor power output shaft is the motor shaft of described first dynamotor; And
Described second motor power output shaft is the motor shaft of described second dynamotor.
11. 1 kinds of vehicles, is characterized in that, comprise the power drive system for vehicle according to any one of claim 1-10.
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CN201410459645.1A CN105459815B (en) | 2014-09-10 | 2014-09-10 | Power drive system for vehicle and the vehicle with the power drive system |
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CN105459815B CN105459815B (en) | 2019-06-25 |
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Cited By (4)
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CN108237908A (en) * | 2016-12-27 | 2018-07-03 | 比亚迪股份有限公司 | Drive shaft locking system and power-driven system and vehicle |
CN108263187A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | Power drive system and with its vehicle |
CN108263191A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | Power drive system and with its vehicle |
CN109606094A (en) * | 2018-11-19 | 2019-04-12 | 江苏大学 | A kind of double-motor hybrid drive system and its control method |
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CN204323058U (en) * | 2014-09-10 | 2015-05-13 | 比亚迪股份有限公司 | For vehicle power drive system and there is the vehicle of this power drive system |
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