中文摘要：

介绍目前汽车主动安全系统（汽车制动防抱系统、汽车驱动力控制系统、汽车电子稳定控制系统、汽车主动悬架、汽车四轮转向系统）上所应用的液压执行器，并重点分析目前先进的汽车主动安全系统——汽车电子稳定控制程序（Electronic stability program，ESP）上的液压执行器的结构、工作原理、工艺特点及其高速响应的性能特点。ESP所使用的液压执行器的响应速度在10ms以内，其响应特性与液压执行器的各部分结构参数、被控车辆制动系统的参数等有紧密的联系，需要进行综合考虑和选择。介绍所采用的对汽车制动防抱系统液压执行器进行动态特性分析和参数匹配的建模分析方法，此方法同时也适用于对其他类型汽车主动安全系统的动态特性分析与参数匹配。最后对未来的汽车主动安全系统执行器的发展进行展望。

英文摘要：

The hydraulic actuators applied in the automotive active safety system, including anti-lock braking system, traction control system, electronics stability program, active suspension, 4-wheel steering system, are introduced. The hydraulic actuator used in the most advanced active safety system currently installed in the luxury cars is analyzed. The hydraulic actuator used in the electronics stability program （ESP） is required to have high speed to response the demand in l0 ms. The high responsibility, the parameters of the structure, the parameters of the vehicle system must be considered roundly. The method of modelling and simulating the hydraulic actuators for the automotive anti-lock braking system applied by the authors is introduced. This method can also be applied to other automotive active safety systems. Finally, the expectation of the actuator for the future active safety system is presented.