The anti-lock brake principle, regulating braking pressure output properties in accordance with condition of road surface so as to control the wheel slip ratio in idea scope, is put forward.

Automobile Anti locking Brake System and Anti slip Regulation are called by a joint name Anti slip Brake System, which is a developing trend of ABS technique now.

This paper describes how to integrate anti-lock brake system(ABS), acceleration slip regulation (ASR) and radar range system into vehicle braking system with fuzzy logic controller.