关键词: 汽车, 制动性能, ABS制动系统, ADAMS, 虚拟样机, 仿真

Abstract: Simulation of ABS braking system was carried out with its virtual prototype the way the slip coefficient was taken as control parameter and the real-time control function of ABS was realized by the joint simulation through MATLAB and ADAMS. The simulation of velocity and braking distance is realized on the same virtual prototype model, and the result showed a quadratic functional relationship between car's velocity before braking action and braking distance. Discusses the impact of the ABS with 3 and 4 control channels on the directional stability during braking and braking distance. It was revealed that when emergency braking the braking distance is shortest if the 4-channel ABS works independently, while the distance becomes longer if the 3-channel ABS works independently. However, the deflection torque to a car is smaller with better directional stability when the car is traveling on an asymmetric road and in emergency brake application with a 3-channel ABS.