The invention provides a trailer control valve and a vehicle braking system, the trailer control valve comprises a shell, an exhaust channel, a breathing channel and a waterproof ventilation valve, and the shell is internally provided with a valve body cavity and a control unit cavity; the exhaust channel is arranged in the shell. The valve body cavity communicates with the external environment through the exhaust channel. The breathing channel is arranged in the shell, and the control unit cavity is communicated with the exhaust channel through the breathing channel; the waterproof ventilation valve is arranged in the shell, communicates with the breathing channel and is used for preventing liquid from passing through and allowing gas to pass through. According to the trailer air pressure braking system, the waterproof ventilation valve is arranged, only air can pass through the waterproof ventilation valve, liquid cannot pass through the waterproof ventilation valve, and therefore water can be prevented from entering the control unit cavity from the breathing channel, it is guaranteed that the electronic control unit is prevented from being damaged in the vehicle wading state, and the trailer air pressure braking system operates normally.
本申请提供一种挂车控制阀及车辆制动系统,挂车控制阀包括外壳、排气通道、呼吸通道和防水透气阀,外壳内设有阀体腔和控制单元腔;排气通道设置在外壳内,阀体腔通过排气通道连通外部环境;呼吸通道设置在外壳内,控制单元腔与排气通道之间通过呼吸通道相连通;防水透气阀设在外壳内,且与呼吸通道相连通,防水透气阀用于阻止液体通过且允许气体通过。本申请通过设置防水透气阀,防水透气阀只能够通过气体,不能通过液体,从而可防止水从呼吸通道进入控制单元腔内,在车辆涉水状态下保证电子控制单元免受损坏,使得挂车气压制动系统正常运行。
Trailer control valve and vehicle braking system
挂车控制阀及车辆制动系统
2024-12-20
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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