The invention relates to the field of vehicle control, in particular to a drive-by-wire redundancy braking system which comprises a main control module, an axle module, a wheel side parking brake, an air storage tank and a wheel cylinder. The wheel side parking brake comprises an air inlet valve, an air outlet valve, a brake tappet, an air chamber, a partition plate, a one-way valve and a spring. When the parking is released, the air chamber is filled with air from the air storage tank through the one-way valve, the partition plate is kept at the bottom of the air chamber under the action of air pressure and drives the brake tappet to be far away from the brake shoe, at the moment, the spring is in a compressed state, the air inlet valve is opened, and the air outlet valve is closed; the main control module is used for responding to a braking request, meeting the emergency braking requirement and controlling the air inlet valve to be closed and the air outlet valve to be opened. According to the system, the key function redundancy when one or more components fail is realized.
本发明涉及车辆控制领域,具体而言,涉及一种线控冗余制动系统,包括:主控模块、桥模块、轮边驻车制动器、储气罐和轮缸;所述轮边驻车制动器包括进气阀、出气阀、制动挺杆、气室、隔板、单向阀和弹簧;驻车解除状态时,所述气室通过所述单向阀注满来源于所述储气罐的气体,所述隔板在气压作用下保持在所述气室底部,带动所述制动挺杆远离制动蹄片,此时所述弹簧处于压缩状态,所述进气阀开启,所述出气阀关闭;主控模块用于响应于制动请求,满足所述紧急制动需求,控制所述进气阀关闭,所述出气阀开启。本实施例实现一个或多个部件失效时的关键功能冗余。
Drive-by-wire redundancy braking system
线控冗余制动系统
2021-08-13
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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