Research on ABS Wheel Speed Processing Approaches Based on 80C196 Singlechip

摘要

ABS wheel speed signals which enter the singlechip may interfuse aberrance signals and add high frequency signals. If we use the original wheel signals to control ABS, it may lead to wrong action of ABS valve. In this paper, cycle and frequency approaches are synthetically used. Aberrance signals is removed first and then filtering and fitting are adopted for wheel angle acceleration and we regard the acceleration as controls parameter. The result of ABS road test testifies that the approach can make the acceleration fluctuate less and make it be the controls parameter and satisfy real-time performance.