ABS轮速信号抗干扰处理方法

Treatment Method of Anti-nterference of ABS Wheel Speed Signal

ABS的轮速处理模块的特性直接关系到系统的控制效果，轮速信号中的随机 和系统干扰如不能很好地识别和剔除，就有可能导致 ABS控制的失效。在分析 ABS轮速信号 产生原因和特点的基础上，提出了轮速信号抗干扰处理方法，包括伪脉冲异点剔除预处理算 法和轮速抗冲击平滑算法。对 ABS试验数据的处理结果表明，所设计的轮速信号干扰处理方 法具有干扰信号抑制彻底、实时性好的优点。

The characteristic of ABS wheel speed treatment module is di rectly affected the control effect of control system,if the random and system in terference in wheel speed signal can not be well recognized and got rid of, it m ay cause the failure of ABS control. Based on the analysis of causes and charact eristic of producing ABS wheel speed signal, the treatment methods of anti－ int erference of wheel speed signal are put forward, including the pretreating algor ithm of false pulse rejected at abnormal point and the smooth algorithm of anti － impact of wheel speed. It is shown by processing results of ABS test data, th e treatment method of designed wheel speed signal interference has the advantage s of restraining thoroughly the interference signals and a better real time.