一种电控机械制动液压系统及其工程机械
一种电控机械制动液压系统及其工程机械
本发明涉及一种电控机械制动液压系统及其工程机械。制动泵为制动阀和电比例控制阀泵送液压油；制动阀进油口与电比例控制阀进油口相连通；制动阀、电比例控制阀的出油口分别与梭阀的一个进油口相连通；梭阀的出油口与制动器相连通；制动阀的阀芯通过连杆与机械踏板连接；踏板传感器将检测的制动阀的阀踏板角度变化电信号输出至控制器；控制器控制电比例控制阀向制动器输出液压油。正常情况下，踏板传感器传递信号至控制器控制电比例控制阀，进行整车制动，大大降低制动踏板力，提高制动系统的响应性，提高驾驶员操控的舒适性；紧急情况下，机械踏板通过连杆作用于制动阀输出制动压力，进行整车制动，保证整机的制动系统安全可靠。
The invention relates to an electric control mechanical brake hydraulic system and engineering machinery thereof. A brake pump pumps hydraulic oil for a brake valve and an electric proportional control valve; an oil inlet of the brake valve is communicated with an oil inlet of the electric proportional control valve; oil outlets of the brake valve and the electric proportional control valve are respectively communicated with one oil inlet of a shuttle valve; an oil outlet of the shuttle valve is communicated with a brake; a valve element of the brake valve is connected with a mechanical pedalthrough a connecting rod; a pedal sensor outputs a detected valve pedal angle change electric signal of the brake valve to a controller; the controller controls the electric proportional control valveto output hydraulic oil to the brake. Under normal conditions, the pedal sensor transmits a signal to the controller to control the electric proportional control valve to brake the whole vehicle, sothat the brake pedal force is greatly reduced, the responsiveness of a brake system is improved, and the control comfort of a driver is improved; in emergency, the mechanical pedal acts on the brake valve through the connecting rod to output brake pressure to brake the whole vehicle, and safety and reliability of the brake system of the whole vehicle are guaranteed.
Dokumentinformationen
一种电控机械制动液压系统及其工程机械
2024-07-16
Patent
Elektronische Ressource
Chinesisch
| IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |