Fuzzy-PID Algorithm Research about Anti-lock Braking System

Searched for a better algorithm to solve the system problems such as instability and slow response and so on to get better control performance.At the same time,solved the problem caused by using fixed value of reference slip ratio,which brings systematic errors,because the best slip ratio is different due to different road condition.This paper analyzes a variety of control algorithms,and combine the fuzzy and PID algorithms to design the system.And designed the road recognition system to make the vehicle automatically identify the road conditions and continuously ajust the reference slip ratio to the best value for the road.The simulation results show that the braking performance has a marked increase,and fuzzy PID algorithm makes the system more stable and respose more rapidly.The design of road recognition system significantly reduces the system error.