中文摘要：

为了解决新能源客车解耦式再生制动系统（Uncoupled Regenerative Braking System,简称URBS）在实车运行过程中出现的气压ABS电磁阀失效问题,从结构与性能角度分析了气压ABS电磁阀失效原因。基于实车运行工况统计得到气压ABS电磁阀实际工作制,在此基础上提出兼顾ABS性能要求的气压ABS电磁阀改进约束条件,并从气压ABS电磁阀线圈结构及使用角度提出改进及测试方案。台架实验及实车测试结果表明：改进后的气压ABS电磁阀的气密性、泄漏量、增减压响应、绕线电阻、绝缘电阻等性能均达到标准要求,能够满足URBS使用要求,且可兼顾ABS性能要求。研究结果对新能源客车URBS开发具有较强的参考价值。

英文摘要：

Aiming at solving the failure of pneumatic ABS solenoid valve for uncoupled regenerative braking system （ URBS）, the failure causes were analyzed based on the structure and performance of pneumatic ABS solenoid valve. The work duty of valve for URBS was obtained based on the statistics of vehicle working conditions. Based on this work duty and the performance requirement of pneumatic ABS, the restriction for pneumatic ABS solenoid valve improvement was given. The improvement and test scheme for pneumatic ABS solenoid valve were given based on the working condition and structure of solenoid valve coil. The bench and vehicle test were done. The test results show that the air tightness, leakage, increasing and reducing response, winding resistance and insulation resistance can meet the requirements of standard, and the performance demand of URBS and ABS. The research has a strong reference value for the development of new energy bus URBS.