中文摘要：

对汽车电子稳定程序（Electronic stability program，ESP）的液压系统进行仿真分析和测试。建立包括液压控制单元的控制阀、柱塞泵、制动软管、硬管以及节流器等环节的主动增压模型；对主动增压系统进行模拟仿真，获取各个环节支配性特征参数。基于模型支配特征参数和试验数据，开发出液压模型和反模型，应用该模型进行ESP压力在线预估，获取控制过程中轮缸压力这一重要控制参量。仿真和试验表明，这种液压模型和反模型能够满足ESP在线控制要求。

英文摘要：

The simulation and test of the hydraulic system of electronic stability program （ESP） are analyzed and tested. The active pressure control model which includes the control valves, eccentric rotary plunger pump, brake pipe/hose, and throttles, is built. The active pressure system is simulated, and the dominant characteristics of the subsystems are obtained. Based on the dominant characteristics of the model and experimental data, the hydraulic model and inverse model are developed. The hydraulic model and inverse model can be used to the inline estimation with EPS and obtain the wheel brake pressure which is one of the most important parameters of the system. The simulation and experiment show that the hydraulic model and inverse model can satisfy the require of the EPS online control.