The invention relates to the technical field of braking, and in particular relates to an energy feedback type brake-by-wire method. The method comprises the steps of starting an electric vehicle, rotating wheels through an engine, stepping down a brake pedal by an operator, decelerating through a motor, reducing the synchronous rotating speed of the motor at the moment that the frequency of a frequency converter is reduced, due to mechanical inertia, the rotating speed of a rotor of the motor being not changed, the actual rotating speed being larger than the given rotating speed, the back electromotive force of the motor being higher than the voltage of the direct-current end of the frequency converter, the motor becoming a generator, transmitting electric energy generated by the motor back to a main power supply in an electric automobile through a connecting wire, and in the event of a brake failure, automatically opening a hydraulic device, so that a hydraulic rod pushes a brake plate to emergently brake equipment, and the safety of an operator is improved. The electric automobile, a variable-frequency speed regulating device, multiple groups of connecting circuits, a brake module, the hydraulic pump, the hydraulic rod and the brake plate are included.
本发明涉及制动的技术领域,特别是涉及一种能量回馈式线控制动方法,其启动电能汽车,通过发动机使轮子转动,通过操作人员踩下制动踏板,经电动机的减速,在变频器频率减小的瞬间,电动机的同步转速随之下降,而由于机械惯性的原因,电动机的转子转速未变,这时会出现实际转速大于给定转速,从而产生电动机反电动势高于变频器直流端电压的情况,这时电动机就变成发电机,通过连接线,将电机发出的电能传回至电能汽车内部的主电源当中,并且在使刹车发生故障时,液压装置自动打开,使液压杆推动刹车板,对设备进行紧急制动,从而提高操作人员的安全性;包括电能汽车、变频调速装置、多组连接电路、刹车模块、液压泵、液压杆和刹车板。
Energy feedback type brake-by-wire method
能量回馈式线控制动方法
2021-02-26
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Brake-by-wire system, brake-by-wire method, and vehicle including brake-by-wire system
Europäisches Patentamt | 2022
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