摘要
针对传统气压制动回路时延较长的问题,提出了一种改进的复合制动回路;对复合制动回路中关键元件——电控制动阀进行功能与性能需求分析,设计了一种基于高速开关电磁阀的电控制动阀,建立了其动态特性响应解析模型,用Simulink对其进行了性能仿真测试。结果显示,所提出的电控制动阀结构满足调压范围、压力响应时间、流量特性、压力特性与稳态误差、制动完全释放时间等性能指标。复合制动回路及电控制动阀的提出可减小制动过程中的压力响应时延,对实现差动制动,促进主动安全技术的发展具有重要意义。
Aimed at the problem of long delay of traditional pneumatic braking circuit, an improved composite braking circuit is proposed. Function and performance requirements of an electrically-pneumatic brake valve which is the key component in composite braking circuit are analyzed. An electrically-pneumatic brake valve based on a high-speed switch solenoid valve is designed and its dynamic characteristic response analysis model is established. A performance simulation test is carried out by Simulink. The results show that the proposed electric control valve’s structure meets performance indexes, such as pressure regulation range, pressure response time, flow characteristics, pressure characteristics and steady-state error, and complete brake release time. The proposed composite braking circuit and the electrically-pneumatic brake valve can reduce the pressure response delay during braking process, and they are of great significance for realizing differential braking and promoting development of active safety technology.
作者
邬松
李刚炎
杨凡
刘子豪
黄凡
李苇白
WU Song;LI Gang-yan;YANG Fan;LIU Zi-hao;HUANG Fan;LI Wei-bai(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan,Hubei 430070)
出处
《液压与气动》
北大核心
2019年第3期65-73,共9页
Chinese Hydraulics & Pneumatics
基金
中国博士后科学基金(2018M642937)
湖北省自然科学基金(2015CFB567)
SMC国际合作项目(T17-10)
关键词
复合制动
电控制动阀
动态特性
仿真实验
composite brake
electrically-pneumatic brake valve
dynamic characteristics
simulation test
作者简介
邬松(1992—),男,湖北利川人,硕士研究生,主要从事气压传动与控制方面的研究工作
