The matching test for F8 electropneumatic brake and U5A empty and load adjustment valve is described. The testing results are analysed. The matching parameters and mounting plan are put forward.
Finally, the proportional electro-pneumatic changeover valve is designed, keeping in view the domestic technology and production capability.
最后结合我国现有的技术特点和工艺、生产能力，完成了比例电空阀的设计。
3
The test results show that the electro-pneumatic proportional valve based on PWMtechnology features smooth performance and conforms to the requirement by electro-pneumatic braking system.