摘要
为提高汽车制动系统的响应速度和制动效能,改善汽车的主动安全性能,提出了一种基于钢球和契形斜面增力机构的汽车电控机械制动系统。首先分析了汽车电控机械制动系统的工作原理,按模块建立了汽车电控机械制动系统的机电耦合动力学模型;根据试验结果获得了不同制动工况的驾驶员制动意图,运用Simulink软件进行了汽车电控机械制动系统的动态性能分析,与传统液压制动系统对比。结果表明该电控机械制动系统能根据实际制动工况快速提供制动力且提高制动效能,可有效改善汽车制动过程的主动安全性。
To improve the response speed and braking efficiency of the brake system for ground vehicle, a new electro mechanical brake system is presented with a ball and wedge ramp force amplifier. From the working principle af the system, the electro mechanical coupling model is established. Then the driver＇s operating intention is obtained by the braking pedal displacement sensor of the test platform. Also, the Simulink software is applied to analyze the dynamic performance of the electro mechanical brake system in different braking conditions. The results show that the electro mechanical brake system can provide braking force quickly and improve the braking efficiency, compared to the conventional hydraulic brake system. That is, it can effectively improve vehicle＇s active safety during braking.
出处
《机械设计与制造》
北大核心
2014年第6期28-30,共3页
Machinery Design & Manufacture
基金
国家自然科学基金(11202096)
关键词
电控机械制动
增力机构
制动效能
主动安全
Electro Mechanical Brake
Force Amplifier
Braking Efficiency
Active Safety
