气压式电子驻车制动系统控制电磁阀的匹配研究

发布时间：2018-05-19 16:04

本文选题：电子驻车制动 + 电磁阀　；参考：《科学技术与工程》2016年25期

【摘要】：针对气压式电子驻车制动系统中的电磁阀匹配问题,对改进设计的直动式两位两通电磁阀,以及常见的微型电磁阀、分步直动式电磁阀进行研究。首先对气压式电子驻车制动系统展开了研究,然后依据系统方案设计搭建气压式电子驻车制动系统的阀类试验台,对三种电磁阀进行静、动态特性试验研究;并对不同控制频率和占空比下的系统压力响应特性进行了研究。试验结果证明改进设计后的直动式两位两通电磁阀对于气压式电子驻车制动系统具有优于其余两种阀的匹配性。最后,对该直动式两位两通阀开关动作下系统的压力滞后特性进行研究,得到电磁阀的通电时间至少应大于开启滞后时间20ms,电磁阀的断电时间至少要大于关闭滞后时间24 ms。
[Abstract]:Aiming at the matching problem of solenoid valve in pneumatic electronic parking braking system, this paper studies the improved design of two-position two-way solenoid valve, as well as the common miniature solenoid valve and stepwise direct-acting solenoid valve. Firstly, the pneumatic electronic parking braking system is studied, and then the valve type test stand of pneumatic electronic parking braking system is designed and built according to the system scheme, and the static and dynamic characteristics of three kinds of solenoid valves are tested and studied. The pressure response characteristics of the system under different control frequency and duty cycle are studied. The experimental results show that the improved two-position two-way solenoid valve is superior to the other two valves in matching the pneumatic electronic parking brake system. Finally, the characteristics of pressure hysteresis of the system under the operation of the two-position two-pass valve are studied. It is concluded that the electrification time of the solenoid valve should be at least 20ms longer than that of the open valve, and the outage time of the solenoid valve should be at least 24ms longer than that of the closed valve.
【作者单位】：南京理工大学机械工程学院;中国人民解放军总装备部汽车试验场;
【基金】：国家自然科学基金项目(51205209,51205204) 中国博士后科学基金项目(2013M531360)资助
【分类号】：U463.5

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