The invention discloses an emergency auxiliary braking method for an electric vehicle. Two keys are pressed at the same time and lasts for a certain time; when the vehicle control unit detects that the gear, the depth of a brake pedal, the opening degree of an accelerator pedal, the vehicle speed, the maximum allowable feedback torque of a driving motor and the maximum allowable charging power of a power battery meet specific conditions at the same time, whether emergency auxiliary braking is started or not is judged according to the vehicle deceleration. According to the method, the braking force is supplemented after the normal braking function of the vehicle is weakened, no part needs to be newly added, the output torque is dynamically adjusted through vehicle deceleration, and the false triggering protection effect is achieved.
本发明公开了一种电动汽车紧急辅助制动方法,同时按下两个按键并持续一定时间后;整车控制器检测档位、制动踏板深度、油门踏板开度、车速、驱动电机最大允许回馈转矩、动力电池最大允许充电功率同时满足特定条件时,根据车辆减速度判定是否启动紧急辅助制动。本发明在车辆正常制动功能减弱后的制动力补充,无需新增任何零部件,通过车辆减速度,动态调节输出转矩,具备误触发保护的效果。
Emergency auxiliary braking method for electric vehicle
电动汽车紧急辅助制动方法
2024-03-19
Patent
Electronic Resource
Chinese
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