The invention provides a tractor redundant safety air pressure braking system, which is characterized in that a proportional relay valve is used for determining pressure output to an air inlet of an ABS (Anti-lock Brake System) electromagnetic valve according to a pre-stored pressure corresponding relation between a control port and an air outlet and an actual pressure value of the control port when an electronic braking system is in a normal condition; therefore, the braking force on the left side and the right side is adjusted, and the deviation condition in the vehicle braking process is adjusted. When the electronic braking system breaks down, the air outlet of the proportional relay valve is communicated with the air inlet, the air pressure of the air outlet of the electronic braking system acts on the ABS electromagnetic valve through the proportional relay valve, braking of a front axle is achieved, the residual braking efficiency under the condition that the electronic braking system breaks down is guaranteed, and the redundant braking effect is achieved. And the reliability of the safety braking system of the tractor is effectively improved.
本发明提出了一种牵引车冗余安全气压制动系统,所述比例继动阀用于在电子制动系统正常情况时,根据预先存储的控制口和出气口的压力对应关系,以及实际控制口的压力数值,决定输出至ABS电磁阀进气口的压力,从而调整左右两侧的制动力,以调节车辆制动过程中跑偏的情况;在电子制动系统故障情况时,比例继动阀的出气口与进气口相通,电子制动系统的出气口气压通过比例继动阀作用于ABS电磁阀,实现前桥的制动,以保证电子制动系统故障情况下的剩余制动效能,达到冗余制动效果,有效地提高了牵引车安全制动系统的可靠性。
Redundant safety air pressure braking system of tractor
一种牵引车冗余安全气压制动系统
2023-06-30
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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