摘要
汽车ABS控制的效果与道路识别有着重要关系,在制动过程中实时对各轮胎所附着道路的附着系数进行识别,可及时地调整制动力,提高道路的附着利用率和制动效能,使汽车ABS控制更加合理.文中通过试验获得了ABS制动过程轮缸的可等效压力函数,由储气缸压力和轮缸压力控制阀开关信号的时间历程,推导出各轮的滑移率,进而得出附着系数,实现了道路识别.道路试验检测验证了该方法的可行性.
Road identification is very important to the correct implementation of automotive ABS （ Anti-lock Brake System）. The real-time recognition of adhesion coefficient for the road attached by each tire helps to adjust the braking force instantaneously, improve the using rate of the adhesion as well as the braking efficiency, and make the automotive ABS control more rational. In this paper, by using the equivalent pressure function of the wheel cylinder during the ABS braking process, the slip coefficient of each tire is deduced by the time-depended pressure of the storage cylinder and the logic signal of the pressure control valve of the wheel cylinder and also with the angle acceleration of wheel, brakeforce. As a result, the adhesion coefficient of each tire is obtained to identify the road condition. The feasibility of the proposed method is finally verified by road tests.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第4期24-27,共4页
Journal of South China University of Technology(Natural Science Edition)
基金
广州科技资助项目(2002C1390141)
关键词
防抱制动系统
道路识别
附着系数
滑移率
Anti-Skid Brake System
road identification
adhesion coefficient
slip coefficient
