Dynamics Simulation Based On ABS System

The development and application of ABS technology has been cognizanced as the first by the automobile industry development planning of our country. ABS has bright prospects as an important technology of hyundai motor.ABS braking in the vehicle wheels in accordance with the movement to develop the automatic adjustment of the brake pressure on the wheels to prevent the wheels locked.The essence is to make the traditional process of braking of the control process into an instant and its purpose is to make the friction wheel with the ground to maximize,while avoiding the loss of rear-wheel slip and the front wheel steering capacity,and all of this in order to obtain the best vehicle braking performance.This paper based on understanding and grasp of the basic structure of the ABS,carry out the simulation analysis of the ABS’s dynamics.For the first,build up a model.In the case of either making a simplified model or not to affect the simulation results,the model should include chassis, steering, brakes, tires and road surface.The tires use UA and Fiala and adjust the parameters for simulation. Use road spectrum Editor to build road file for simulation in different road. Use disc brakes of ADAMS/Car and adjust the parameters of them.Build up four and three channels control model for co_simulation.This paper do research about speed and braking distance relationship of two models from15km/h to90km/h under the four channels control; Do the lateral、the longitudinal、inclination angle、the omega actual analysis on the four kinds of road include rough and smooth with60km/h as the initial velocity and braken in3second later;Do comparative simulation with mediation device or without,At final Do the comparative analysis of the braking under the control of four channels or three cannerls.This paper is about co_mulation of ABS system dynamics,and the data maybe useful for other research about ABS.