CN101934792A - Driving and transmission system of electric mobile - Google Patents
Driving and transmission system of electric mobile Download PDFInfo
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- CN101934792A CN101934792A CN2010102779233A CN201010277923A CN101934792A CN 101934792 A CN101934792 A CN 101934792A CN 2010102779233 A CN2010102779233 A CN 2010102779233A CN 201010277923 A CN201010277923 A CN 201010277923A CN 101934792 A CN101934792 A CN 101934792A
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Abstract
The invention relates to a driving and transmission system of an electric mobile, which comprises an automobile control unit, a motor controller, at least two motors and a gear box (5), wherein the motor controller is connected with the automobile control unit; the at least two motors are connected with the motor controller; and the gear box (5) is connected with the motors and used for synthesizing the power and torque of a plurality of motors and has at least one output shaft and at least two input shafts. The driving and transmission system of the electric mobile solves the problems in the prior art and has a low price, a simple structure and high performance.
Description
Technical field
The present invention relates to a kind of automobile and drive and driving system especially a kind of power assembly system of electric vehicle.
Background technology
The driving system of electronlmobil has been continued to use the machine driven system of traditional combustion engine automobile substantially at present.Because the power producing characteristics of combustion engine has determined orthodox car to equip: power-transfer clutch, change speed gear box, retarder, to guarantee that automobile is under different motion speed, the actual power of the takeoff output of combustion engine and automobile (tractive force) demand is complementary, and remains on relatively stable and efficiently in the working speed scope.And can in its scope of design, satisfy the takeoff output that is close to linearity from slow speed of revolution to high rotating speed with power-actuated motor; When car retardation and brake, motor can also charge to power accumulator as the electrical generator feedback electric energy; Even counter-rotating realizes emergency brake.Therefore the traditional driving system of combustion engine not only there is no need concerning electronlmobil but also is burdensome.
On the other hand, adopt motor direct-drive also to bring series of technical:
1. with high costs.At present for the orthodox car driving system supporting, output rating is equivalent to the price of a 7-8L diesel motor in the market price of the drive motor of 100KW, add the electric machine controller (basic suitable with the price of drive motor) and the cost of entire car controller increase independently, only the cost increase that brings of drive system is considerable.Add the great number cost of current driving force battery system, the cost of electronlmobil becomes its huge obstacle that moves towards market.
2. mate bad.Because the road conditions more complicated of travelling of automobile need constantly start, stops, quickens and slow down.Therefore the drive system of present single motor can not fine solution Motor torque-rotary speed property with the car load dynamic property between contradiction: as if power invariability, then can not satisfy car acceleration performance and maximum speed requirement simultaneously; If take into account the design objective requirement of maximum speed and low speed climbing fully, then must increase substantially the power of motor, so not only the volume of motor can be multiplied and cause complete vehicle quality to increase, and the voltage class that forces electrokinetic cell promotes or working current increases, the performance requriements of safety performance and power electronic devices improves, and has increased cost.In actual applications, people have to use the manual or Automatic Transmission of orthodox car to solve the electric powered motor matching problem.
Summary of the invention
In order to overcome the deficiency that prior art exists, the object of the present invention is to provide the Drive for EV and the driving system of a kind of low price, simple in structure, dependable performance.
For reaching above purpose, technical scheme of the present invention is: a kind of Drive for EV and driving system, comprise entire car controller, the electric machine controller that is connected with described entire car controller, at least two motors that are connected with described electric machine controller, be connected, be used for the power of synthetic a plurality of described motors and the change speed gear box of moment of torsion with described motor, described change speed gear box has an output shaft and at least two input shafts.
Further improvement of the present invention is that each described motor connects a described electric machine controller separately, and each motor adopts an electric machine controller, during wherein one or more motor et out of orders, can also use remaining motor, makes product more reliable.
Further improvement of the present invention is that described Drive for EV and driving system are arranged on the propons of automobile.
Further improvement of the present invention is that described Drive for EV and driving system are arranged on the back axle of automobile.
Further improvement of the present invention is that described Drive for EV and driving system are arranged on the propons and back axle of automobile.
Further improvement of the present invention is that the mouth of described change speed gear box is connected with automotive wheel with universal-joint by transmission shaft.
Further improvement of the present invention is that described electric machine casing links to each other with gear box casing and forms an one-piece construction, and integrated setting prevents that a plurality of motors are crooked with the contraposition generation of change speed gear box when mounted, influences properties of product.
Further improvement of the present invention is that described change speed gear box is the speed-changing gear box of fixed speed ratio, and is simple in structure, be connected firmly.
Further improvement of the present invention is that described gear box output end also is connected with diff, and the speed setting by each tire of diff realization automobile has reduced the requirement to automobile controller, and is practical more economically.
The invention has the beneficial effects as follows: because the integrated technical scheme that has adopted change speed gear box and many motors and car to be provided with, make Drive for EV and driving system low price, can take into account the various motoring condition of electronlmobil, simple in structure, easy to use, further reduced the productive costs of electronlmobil.
Description of drawings
Accompanying drawing 1 is the structural representation of a kind of Drive for EV of the present invention and driving system embodiment;
Accompanying drawing 2 is the block diagram of motor and change-speed box among a kind of Drive for EV of the present invention and the driving system embodiment;
Accompanying drawing 3 is the front view of motor and change-speed box among a kind of Drive for EV of the present invention and the driving system embodiment;
Accompanying drawing 4 is the structural representation one of motor and change-speed box among a kind of Drive for EV of the present invention and the driving system embodiment;
Accompanying drawing 5 is the structural representation two of motor and change-speed box in a kind of Drive for EV of the present invention and the driving system;
Accompanying drawing 6 is the structural representation three of motor and change-speed box in a kind of Drive for EV of the present invention and the driving system.
Wherein
1, first motor; 2, second motor; 3, the 3rd motor; 4, the 4th motor, 5, change speed gear box.
The specific embodiment
Below exemplary embodiments of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.
Referring to accompanying drawing 1 to accompanying drawing 4, a kind of Drive for EV and driving system, comprise change speed gear box 5 with four input shafts and an output shaft, first motor 1, second motor 2, the 3rd motor 3 and the 4th motor 4, first electric machine controller that is connected with each motor, second electric machine controller, the 3rd electric machine controller and the 4th electric machine controller respectively that are connected with four input shafts of change speed gear box 5.The power of each motor and moment of torsion are by the output shaft output of change speed gear box 5 synthetic backs from change speed gear box 5.Electric machine controller all is set for each motor separately, when certain independent motor damages, can influence the work of other motors, increased reliability of products.
First electric machine controller, second electric machine controller, the 3rd electric machine controller and the 4th electric machine controller are connected with entire car controller respectively.
Drive for EV in the present embodiment and driving system are arranged on the propons of automobile, and the mouth of change speed gear box 5 is connected with automotive wheel with universal-joint by transmission shaft, also are connected with diff at automotive wheel and 5 of change speed gear boxs.Certain Drive for EV of the present invention and driving system can also be arranged on the back axle of automobile, perhaps are separately positioned on the propons and back axle of automobile.
In the present embodiment, electric machine casing links to each other with change speed gear box 5 housings and forms an one-piece construction, when manufacturing, just carry out motor and change speed gear box 5 integrated, prevent in the car equipment process, when a plurality of motors are connected with change speed gear box 5, because the error of installing causes the displacement of motor and change speed gear box 5, cause assembling nonconformity.
Change speed gear box 5 in the present embodiment is the speed-changing gear box 5 of fixed speed ratio, adopts gear transmission power, and simple in structure, structure is firm.Certainly can also adopt the not speed-changing gear box with speedup or deceleration performance 5 of fixed speed ratio, certainly can also take other multi-form change speed gear boxs 5, modes such as belt or chain are continuous with the gear of motor output end as using, the mode of use hydraulic pressure, the flexible transmission of use are carried out the parallel connection of motor power.The form of change speed gear box 5 does not limit the scope that comprises of the present invention.
Below by preferred embodiment of the present invention in detail principle of work of the present invention is described in detail.
When the automobile low speed driving, first motor 1 is started working, first motor 1 promotes change speed gear box 5 work, change speed gear box 5 work, the output shaft that promotes second motor 2, the 3rd motor 3 and the 4th motor 4 rotates, because second motor 2, the 3rd motor 3 and the 4th not running of motor 4, so only be the output shaft idle running of second motor 2, the 3rd motor 3 and the 4th motor 4 this moment.
After 1 work a period of time of first motor, second motor 2 begins to start, with of together promotion change speed gear box 5 work of first motor 1 with speed, behind second motor, 2 working stabilities, first motor 1 stops operating, at this moment only have second motor 2 to promote change speed gear box 5 and rotate, the output shaft of first motor 1, the 3rd motor 3 and the 4th motor 4 dallies under the drive of change speed gear box 5.First motor 1 that switches to of first motor 1 and second motor 2 provides the time of having a rest, and prevents that first motor 1 is overheated because of high-speed operation.After second motor 2 has been worked a period of time, can switch to the 3rd motor 3 and the 4th motor 4, recycle each motor.
If load-bearing is bigger on the automobile, the problem of under power can appear in a motor in propelling vehicle, at this moment can start first motor 1 and second motor 2 simultaneously, allow first motor 1 and second motor 2 promote change speed gear box 5 motions simultaneously, the mouth of change speed gear box 5 has merged the power and the moment of torsion of first motor 1 and second motor 2 simultaneously, gives automobile bigger propelling thrust.At this moment the mouth of the 3rd motor 3 and the 4th motor 4 dallies under the drive of change speed gear box 5.
After operation a period of time, first motor 1 is replaced in the 3rd motor 3 and 4 startups of the 4th motor and second motor 2 gives propelling thrust, makes first motor 1 and second motor 2 obtain having a rest.
According to the difference of automobile scenarios, when low cruise, can select to use simultaneously the number of motor, can use a motor, two motors, three motors or even four motors use the number of motor not limit protection scope of the present invention.
When galloping, first motor 1 is started working, first motor, 1 high-speed operation, first motor 1 promotes change speed gear box 5 work, the output shaft that change speed gear box 5 work promote second motor 2, the 3rd motor 3 and the 4th motor 4 rotates, because second motor 2, the 3rd motor 3 and the 4th not running of motor 4, so only be the output shaft idle running of second motor 2, the 3rd motor 3 and the 4th motor 4 this moment.Only use a motor at a high speed automobile to be promoted, can be with the maximized automobile that is delivered to of the speed of motor.Behind first motor, 1 running certain hour, switch to second motor 2, the 3rd motor 3 and the 4th motor 4 successively, recycle each motor.
Same, if load is bigger on the automobile, can open first motor 1 and second motor 2 simultaneously, be sent to automobile after the power output of change speed gear box 5 integration first motors 1 and second motor 2, drive automobile and advance.At this moment the output shaft of the 3rd motor 3 and the 4th motor 4 is driven idle running down by change speed gear box 5.
Need in climbing etc. under the situation of strong torsion, start four motors simultaneously, change speed gear box 5 is integrated the power and the moment of torsion of four motors, give automobile strong propelling thrust, many motors are almost exported in permanent moment of torsion work area simultaneously, vehicle towed power farthest is provided, overcomes inertia and gravity and make automobile finish the action of climbing smoothly.After the climbing release, can switch to as required at a high speed or the low speed travel condition.
Under the situation of normal braking, the rotation of the motor that stops to move allows the inertia rotation continuation propelling vehicle of change speed gear box 5 advance, and after having moved a segment distance, change speed gear box 5 also stops operating, and reaches the purpose of brake.
Under the situation of sudden stop, the motor that counter-rotating is being rotated gives change speed gear box 5 one fast speed converse rotating forces, and change speed gear box 5 is stopped immediately, reaches the purpose of sudden stop.
What need mention especially is, the motor in the present embodiment is the motor with adaptive characteristic, and rotating speed not only is subjected to the control of electric machine controller, also accepts the feedback of change speed gear box 5, adjusts rotating speed voluntarily.When different motors switches mutually, according to the operating condition of change speed gear box 5, coordinate each rotating speed of motor, reach the purpose of the common running of each motor.Because the adaptive characteristic of motor, the motor that is input to change speed gear box 5 can use the motor of different size to arrange in pairs or groups mutually according to the difference of road conditions, the speed of a motor vehicle for what have nothing in common with each other.The difference of motor does not limit the scope that comprises of the present invention.
In this preferred embodiment, use four motors to be input to a change speed gear box 5.In order to reach identical purpose, we can also take other mode, as for the less C-class of load, use change speed gear box 5 of two motors inputs can realize driving (referring to accompanying drawing 4) to C-class; For another example for the vehicle that position limit is arranged, can't arrange four motors in same zone, but the vehicle body load is heavier, need to use four motor-driven, at this moment the motor of can taking to arrange in two zones, take in change speed gear box 5 of two motors input in single zone, the mouth of the change speed gear box 5 in two zones is bound together again, also can reach the purpose (referring to accompanying drawing 5) of 4 motor brakings.The arrangement mode of the quantity of motor, motor and change speed gear box 5 can have various ways, does not cause the qualification to protection domain of the present invention.
By above embodiment as can be seen, the present invention is a kind of low price, simple and practical Drive for EV and driving system.
Above embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection scope of the present invention with this, all equivalences that spirit is done according to the present invention change or modification all is encompassed in protection scope of the present invention.
Claims (9)
1. Drive for EV and driving system, it is characterized in that: comprise entire car controller, the electric machine controller that is connected with described entire car controller, at least two motors that are connected with described electric machine controller, be connected, be used for the power of synthetic a plurality of described motors and the change speed gear box (5) of moment of torsion with described motor, described change speed gear box (5) has an output shaft and at least two input shafts.
2. a kind of Drive for EV according to claim 1 and driving system is characterized in that: each described motor connects a described electric machine controller separately.
3. a kind of Drive for EV according to claim 1 and driving system is characterized in that: described Drive for EV and driving system are arranged on the propons of automobile.
4. a kind of Drive for EV according to claim 1 and driving system is characterized in that: described Drive for EV and driving system are arranged on the back axle of automobile.
5. a kind of Drive for EV according to claim 1 and driving system is characterized in that: described Drive for EV and driving system are arranged on the propons and back axle of automobile.
6. a kind of Drive for EV according to claim 1 and driving system is characterized in that: the mouth of described change speed gear box is connected with automotive wheel with universal-joint by transmission shaft.
7. a kind of Drive for EV according to claim 1 and driving system is characterized in that: described electric machine casing links to each other with change speed gear box (5) housing and forms an one-piece construction.
8. a kind of Drive for EV according to claim 1 and driving system is characterized in that: described change speed gear box (5) is the speed-changing gear box of fixed speed ratio (5).
9. according to each described a kind of Drive for EV and driving system in the claim 1 to 8, it is characterized in that: described change speed gear box (5) mouth also is connected with diff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102779233A CN101934792A (en) | 2010-09-10 | 2010-09-10 | Driving and transmission system of electric mobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102779233A CN101934792A (en) | 2010-09-10 | 2010-09-10 | Driving and transmission system of electric mobile |
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| Publication Number | Publication Date |
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| CN101934792A true CN101934792A (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010102779233A Pending CN101934792A (en) | 2010-09-10 | 2010-09-10 | Driving and transmission system of electric mobile |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050107207A1 (en) * | 2003-11-18 | 2005-05-19 | Nissan Motor Co., Ltd. | Speed ratio control apparatus and method for a hybrid transmission |
| CN101001032A (en) * | 2006-01-13 | 2007-07-18 | 太光（株） | Apparatus for transferring power having a motor |
| CN101386258A (en) * | 2007-09-10 | 2009-03-18 | 比亚迪股份有限公司 | Pure electric drive system |
| CN201208905Y (en) * | 2008-02-01 | 2009-03-18 | 深圳先进技术研究院 | Mixed power system for wharf tractor |
| CN101767542A (en) * | 2008-12-26 | 2010-07-07 | 常州麦科卡电动车辆科技有限公司 | Intelligent drive platform for four wheels of electric automobile |
| CN201849423U (en) * | 2010-09-10 | 2011-06-01 | 邓有白 | Driving and transmitting system of electric automobile |
-
2010
- 2010-09-10 CN CN2010102779233A patent/CN101934792A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050107207A1 (en) * | 2003-11-18 | 2005-05-19 | Nissan Motor Co., Ltd. | Speed ratio control apparatus and method for a hybrid transmission |
| CN101001032A (en) * | 2006-01-13 | 2007-07-18 | 太光（株） | Apparatus for transferring power having a motor |
| CN101386258A (en) * | 2007-09-10 | 2009-03-18 | 比亚迪股份有限公司 | Pure electric drive system |
| CN201208905Y (en) * | 2008-02-01 | 2009-03-18 | 深圳先进技术研究院 | Mixed power system for wharf tractor |
| CN101767542A (en) * | 2008-12-26 | 2010-07-07 | 常州麦科卡电动车辆科技有限公司 | Intelligent drive platform for four wheels of electric automobile |
| CN201849423U (en) * | 2010-09-10 | 2011-06-01 | 邓有白 | Driving and transmitting system of electric automobile |
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Addressee: Deng Youbai Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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Application publication date: 20110105 |