Antiskid control system and method for electromobile

An electric vehicle and control system technology, applied in the field of electric vehicles, can solve problems such as non-slip control of electric vehicles, and achieve the effects of avoiding vehicle instability, improving driving stability, improving safety and climbing ability

Active Publication Date: 2007-12-19
BYD CO LTD
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Problems solved by technology

However, the existing ABS and ASR are aimed at motor-driven vehi

Method used

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  • Antiskid control system and method for electromobile

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Embodiment Construction

[0010] Please refer to FIG. 1 , the anti-skid control system for an electric vehicle of the present invention includes a wheel speed sensor, a wheel brake, a motor and an ABS / ASR integrated control unit. Each wheel 6, 8, 11, 13 of the electric vehicle is equipped with a wheel speed sensor 41, 42, 51, 52, and the wheel speed sensor is used for real-time detection of the rotation speed of the corresponding wheel. Each wheel of the electric vehicle is provided with a wheel brake 7, 9, 10, 12, and the wheel brake is used to apply a braking force to the wheel. Electric motor 2 is powered by power battery 1, and it drives left and right front wheels 8,6 to rotate. The ABS / ASR integrated control unit 3 is integrated with ABS and ASR control programs. The output terminals of each wheel speed sensor are connected to the ABS / ASR integrated control unit, the output terminals of the integrated control unit are connected to the wheel brakes and electric motors, and the integrated unit als...

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Abstract

The present invention discloses one kind of antiskid control system for electromobile. The antiskid control system includes wheel speed sensors for detecting the real-time speeds of the wheels, wheel brakes for braking the wheels separately, one motor for driving the electromobile, and one ABS/ASR integrated control unit connected to all the sensors, the brakes and the motor. When it receives an acceleration signal, the ABS/ASR integrated control unit regulates the real-time output torque of the motor based on the wheel slip rate; and when it receives a braking signal, it regulates the real-time braking force based on the wheel slip rate. The present invention can reduce the slip rate of electromobile effectively and raise its running stability.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to an anti-skid control system of the electric vehicle. Background technique [0002] At present, ABS and ASR have gradually become standard configurations on automobiles. The common goal of ABS and ASR is to limit the wheel slip rate within a certain acceptable range to ensure good driving performance of the vehicle. ABS (Anti-lock Braking System) is the anti-lock braking system of automobiles. It mainly controls and adjusts the pressure of the brake line to prevent the dangerous working conditions of the wheels from locking during the braking process of the vehicle, which can improve the handling performance of the vehicle. ; ASR (Anti-Slip Regulation) is a car drive anti-skid system, by adjusting the power output of the vehicle, making full use of the road adhesion rate, to achieve the effect of enhancing driving ability and handling stability. ASR usually has three control meth...

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Application Information

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IPC IPC(8): B60W10/08B60W10/18B60W30/02B60W10/184
Inventor 宋明陈伟夏承钢
Owner BYD CO LTD
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