重车联合制动电液比例控制系统仿真与实验研究

兵工学报 ›› 2008, Vol. 29 ›› Issue (1): 6-9.

重车联合制动电液比例控制系统仿真与实验研究

徐鸣

中国北方车辆研究所车辆传动国家重点实验室，北京100072

收稿日期:2007-04-04 上线日期:2014-12-25
通讯作者: 徐鸣 E-mail:mingxu090@sina．Com
作者简介:徐鸥（1968-），女，高级工程师。
基金资助:
国防科技重点实验室基金资助项目( 9140C3405070703)

Simulation and Experiment Research on Electro Hydraulic Proportional Control for Heavy Vehicle Blend Brake System

XU Ming

National Key Lab of Vehicular Transmission, China North Vehicle Research Institute, Beijing 100072，China

Received:2007-04-04 Online:2014-12-25
Contact: XU Ming E-mail:mingxu090@sina．Com

摘要/Abstract

摘要： 根据重型车辆联合制动电液比例控制系统的组成和工作特性，分析了其主要控制元件电液比例／伺服减压阀的数学模型，建立了比例／伺服阀控制制动缸系统的非线性数学模型，并给出了制动系统的线性化传递函数；根据所选的具体比例阀特性和系统参数，计算了液压固有频率和PID闭环系统特性。分别进行了闭环系统数字仿真计算、控制系统台架试验和某50 t重型车辆的实际控制试验，三者的数据基本吻合。试验数据表明，采用电液比例阀控制制动缸的联合制动系统具有高响应、高精度的优点。

关键词: 自动控制技术 , 重型车辆 , 联合制动 , 电液比例控制

Abstract: A blend brake system of heavy venicle was proposed. The main control part of the system is an electro hydraulic proportional servo valve, through the analysis oi its control property and system feature, a nonlinearable model of the brake cylinder controlled by the valve was deduced. The transfer function of the system was also obtained, and the hydraulic inherent frequency and the PID closed-loop system feature were calculated according to the selected valve feature and the systematic parameters. A PID closed-loop control system was formed. The simulated result is consistent with that tested in bench and on the site with the heavy vehicle of 50 t. The experimental data show that the proposed control method has the quality of quick response and high precision.

Key words: automatic control technology , heavy vehicle , blend brake , electro hydraulic proportional control

中图分类号:

TH137. 31

徐鸣. 重车联合制动电液比例控制系统仿真与实验研究[J]. 兵工学报, 2008, 29(1): 6-9.

XU Ming. Simulation and Experiment Research on Electro Hydraulic Proportional Control for Heavy Vehicle Blend Brake System[J]. Acta Armamentarii, 2008, 29(1): 6-9.

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