The invention discloses a commercial vehicle drive-by-wire redundancy brake unit and a control method thereof. The commercial vehicle drive-by-wire redundancy brake unit comprises a proportional brake valve assembly, a redundancy brake controller, a drive-by-wire redundancy fault lamp and an independent power supply. The proportional brake valve assembly comprises two electric control proportional valves and two shuttle valves, the two electric control proportional valves and the brake foot valves are connected in parallel through brake air pressure pipelines and the shuttle valves, and the two electric control proportional valves and the brake foot valves control a front axle brake loop, a middle axle brake loop and a rear axle brake loop respectively to implement redundant brake; the redundant brake controller is powered by an independent power supply, controls the redundant fault lamp to be turned on or turned off, and communicates with the EBS, the EPB and the automatic driving controller. The redundant brake controller receives signals of a pressure sensor in the proportional brake valve assembly, controls current of each electric control proportional valve at the same time, and adjusts redundant brake output pressure. The maximum braking force which is the same as that of a conventional braking device can be generated, and the front braking force and the rear braking force can be adjusted according to needs; the system is high in reliability, compact in structure and low in power capacity requirement.
本发明公开了一种商用车线控冗余制动单元及其控制方法,包括比例制动阀总成、冗余制动控制器、线控冗余故障灯、独立电源;比例制动阀总成包括两个电控比例阀和两个梭阀,两个电控比例阀与制动脚阀通过制动气压管路及梭阀并联,分别控制前桥制动回路和中、后桥制动回路以实施冗余制动;冗余制动控制器由独立电源供电,控制线控冗余故障灯点亮或熄灭,并与EBS、EPB以及自动驾驶控制器通讯;冗余制动控制器接收比例制动阀总成中的压力传感器信号,同时控制每个电控比例阀的电流,调节冗余制动输出压力。本发明能够能够产生与常规制动装置相同的最大制动力,而且前、后制动力可按需调节;系统可靠性高、结构紧凑,且对电源容量要求低。
Commercial vehicle drive-by-wire redundancy brake unit and control method thereof
一种商用车线控冗余制动单元及其控制方法
2023-10-20
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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