CN2605148Y - Tractive force control system for electric automobile - Google Patents
Tractive force control system for electric automobile Download PDFInfo
- Publication number
- CN2605148Y CN2605148Y CNU022663126U CN02266312U CN2605148Y CN 2605148 Y CN2605148 Y CN 2605148Y CN U022663126 U CNU022663126 U CN U022663126U CN 02266312 U CN02266312 U CN 02266312U CN 2605148 Y CN2605148 Y CN 2605148Y
- Authority
- CN
- China
- Prior art keywords
- speed sensor
- wheels
- control system
- control unit
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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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
- Y02T10/72—Electric energy management in electromobility
Abstract
A traction control system for electric vehicles comprises a power supply (4), a plurality of wheels (6), a front wheel speed sensor (3), a back wheel speed sensor (7), a control unit (5) and a driving motor (2) connected with the power supply (4) through power lines and wheels (6). The front wheel speed sensor (3) and back wheel speed sensor (7) transfer signals to the control unit (5) which transfers signals to the driving motor (2). The traction control system has regulation effect of the driving torque of the driving wheels through the driving torque regulation of the driving motor and realizes TCS controlling function. The traction control system can not only reach the controlling effect of TCS but also has the advantages of the faster response speed.
Description
Technical field
The utility model patent relate to a kind of electronlmobil anti-slip regulation (Traction ControlSystem, TCS)
Background technology
Automobile traction control system (TCS) is that a kind of automobile drive wheels in acceleration, starting-up process that can prevent is trackslipped, and guarantees the device of vehicle heading stability, road-holding property and optimal drive power.Its its working principles is as follows: calculated the slippage rate of wheel by drive wheels rotating speed and the speed of a motor vehicle after, adjust driving torque on the drive wheels by certain control method, reach the wheel slip rate is controlled in the target zone, be generally 15%-20%.
Present TCS control system adopts two kinds of methods to prevent wheel slip usually: motor torque mode and brake control mode.So-called motor torque mode is exactly to regulate driving engine to be transferred to driving torque on the drive wheels, the method for the slip level of control wheel, but this method speed of response is slower.And brake control mode is exactly that the drive wheel that will dally is applied certain braking force, will be balanced out by the redundance of the next propulsive effort of driving engine transmission, thereby the slip level of wheel is controlled on the degree of expection.The employing brake control method has the advantage that control response speed is fast and wheel is controlled separately, and still but existence makes certain power be braked power and offsets the defective of making idle work, is unfavorable for the performance driving economy of automobile.For electronlmobil, it does not have combustion engine and driving system thereof, therefore can't utilize motor torque to control and realize the TCS function.If utilize brake control method to realize, also there is the actuator system complexity, the shortcoming that cost is high.
Summary of the invention
It is actuating unit with the drive motor that technical problem to be solved in the utility model provides a kind of, and adopts drive motor output torque control method to prevent the electronlmobil anti-slip regulation of wheel slip.
In order to address the above problem, the utility model has adopted following technical proposals: the anti-slip regulation of this electronlmobil, comprise: power supply, some wheels, front wheel rotation speed sensor, rear wheel rotation speed sensor, control unit, and be connected with wheel with drive motor, described drive motor that power supply is connected by power line, described front wheel rotation speed sensor, rear wheel rotation speed sensor send the signal of sensing to control unit, and described control unit sends control signal to drive motor.
Engine control, driving system that this system utilizes the drive motor controllable function to substitute and adopts on the common internal-combustion engine vehicle are controlled or the hydraulic braking auxiliary control method, regulate the regulating action that realizes the drive wheels drive torque by driving torque, realize the TCS controllable function, it can not only reach the control effect of TCS, and has speed of response advantage faster.
Description of drawings
Fig. 1 is the structural representation of the anti-slip regulation of the utility model electronlmobil.
The specific embodiment
As shown in Figure 1: the anti-slip regulation of the utility model four-wheel electric automobile comprises: power supply 4, the drive motor that is connected by power line with power supply 42, four wheels 6, be connected axle 1, front wheel rotation speed sensor 3, rear wheel rotation speed sensor 7, the control unit 5 of two wheels 6 respectively, described drive motor 2 is connected with axle 1, described front wheel rotation speed sensor 3, rear wheel rotation speed sensor 7 send the signal of sensing to control unit 5, and described control unit 5 sends control signal to drive motor 2.
When chaufeur implement to drive operation, wheel speed sensor detected the rotating speed of axle drive shaft and driven shaft, by formula:
In the formula: W
From---secondary speed, r
From---flower wheel radius, W
Drive---drive wheel rotating speed, r
Drive---the drive wheel radius
Obtain the slippage rate of drive wheels by following formula, and compare with the slippage rate 0.20 of expectation.If actual slippage rate greater than the expectation slippage rate, then reduces driving torque 10%-30% by motor torque control vector method, if actual slippage rate less than the expectation slippage rate, then the controlling and driving motor increases driving torque 10%-30%.Thereby realize driving anti-skidding controllable function.Because above-mentioned antislip control method has been prior art, repeats no more here.
Claims (2)
1, a kind of anti-slip regulation of electronlmobil, it comprises: power supply (4), some wheels (6), front wheel rotation speed sensor (3), rear wheel rotation speed sensor (7), control unit (5), it is characterized in that, this system comprises that also the drive motor (2) that is connected by power line with power supply (4), described drive motor (2) are connected with wheel (6), described front wheel rotation speed sensor (3), rear wheel rotation speed sensor (7) incoming signal are given control unit (5), and described control unit (5) outputs signal to drive motor (2).
2, anti-slip regulation according to claim 1 is characterized in that, this system comprises that also the axle (1) that connects two wheels (6) respectively, described drive motor (2) are connected with wheel (6) by axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022663126U CN2605148Y (en) | 2002-08-14 | 2002-08-14 | Tractive force control system for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022663126U CN2605148Y (en) | 2002-08-14 | 2002-08-14 | Tractive force control system for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605148Y true CN2605148Y (en) | 2004-03-03 |
Family
ID=34150247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022663126U Expired - Lifetime CN2605148Y (en) | 2002-08-14 | 2002-08-14 | Tractive force control system for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2605148Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100415571C (en) * | 2004-09-10 | 2008-09-03 | 三菱电机株式会社 | Motor control apparatus |
| CN100455463C (en) * | 2004-06-10 | 2009-01-28 | 日产自动车株式会社 | Driving force control apparatus for automotive vehicles |
| CN102275528A (en) * | 2011-06-03 | 2011-12-14 | 清华大学 | Driving moment coordinated control system and method of distributed-driving electric automobile |
| CN104002699A (en) * | 2014-05-26 | 2014-08-27 | 北京理工大学 | Control method of distributed driving electric vehicle |
| CN105835723A (en) * | 2015-02-03 | 2016-08-10 | 微空间株式会社 | Motor driving apparatus |
-
2002
- 2002-08-14 CN CNU022663126U patent/CN2605148Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455463C (en) * | 2004-06-10 | 2009-01-28 | 日产自动车株式会社 | Driving force control apparatus for automotive vehicles |
| CN100415571C (en) * | 2004-09-10 | 2008-09-03 | 三菱电机株式会社 | Motor control apparatus |
| CN102275528A (en) * | 2011-06-03 | 2011-12-14 | 清华大学 | Driving moment coordinated control system and method of distributed-driving electric automobile |
| CN104002699A (en) * | 2014-05-26 | 2014-08-27 | 北京理工大学 | Control method of distributed driving electric vehicle |
| CN105835723A (en) * | 2015-02-03 | 2016-08-10 | 微空间株式会社 | Motor driving apparatus |
| US10099558B2 (en) | 2015-02-03 | 2018-10-16 | Microspace Corporation | Motor driving apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120814 Granted publication date: 20040303 |