中文摘要：

电子稳定程序（ESP）是改善汽车行驶性能的一种控制系统，可大大降低交通事故并提高道路安全。它整合了ABS防抱死制动系统和ASR牵引力控制系统，有防止汽车转向时滑移、不稳定和侧向驶出车道的综合控制能力。本文针对某A型车，基于多体系统动力学理论，利用ADAMS／Car建立了包括转向系统、前后悬架系统、制动系统和车身等子系统的虚拟样机仿真模型。为了对加装ESP系统的车辆操纵稳定性进行仿真研究，本文将车辆横摆角速度作为控制变量，建立了ESP模糊控制模型，针对干路面和冰雪路面工况，对车辆有无ESP控制时的操纵稳定性进行了仿真分析。结果表明，ESP能够提高车辆的操纵稳定性，帮助驾驶员适应各种路面和行驶工况，取得了良好的主动控制效果，大大提高了行车安全。

英文摘要：

Electronic Stability Program （ESP） is a control system to improve the performance of vehicle. It can reduce traffic accidents and improve driving safety greatly. It integrates the advantages of anti-lock braking system （ABS） and acceleration slip regulation （ASR）, and can prevent slip, instability and lateral exiting of vehicle. Based on the theory of multi-body system dynamics, the virtual prototype model of an A- type car, which includes steering system, front and rear suspensions, braking system, body, etc. , is built by using the ADAMS/Car software. In order to study the handling stability of vehicle with ESP control system, the vehicle yaw rate is set as the controlling variable to build the fuzzy control model of ESP. The simulation test on dry and snow road surface are carried out to evaluate the with/without ESP. The results show that the vehicle with fuzzy vehicle handling stability, help the driver to adapt to a variety of good effect of active control and improve the traffic safety. handling stability performance of vehicle control algorithms ESP can improve the road and driving conditions, and obtain a