The invention discloses a new energy automobile motor braking system. The system comprises constraint conditions such as sliding working condition judgment, sliding deceleration calculation, sliding braking force distribution, front motor sliding regenerative braking force, rear motor sliding regenerative braking force, target automobile hydraulic braking characteristics, rear motor analysis force, I curve limitation, a motor, a battery and automobile speed. According to an ABS coordination strategy, a fault processing mechanism, a front axle motor controller and a rear axle motor controller, when a driver loosens an accelerator pedal and detects that the vehicle speed is reduced, the working condition of the driver is judged, sliding deceleration is calculated, and therefore regenerative braking force distribution is conducted on a front motor and a rear motor through a sliding braking force distribution module; when a driver steps on a brake pedal, the rear axle motor actively compensates the equivalent brake deceleration of the rear axle brake according to the brake strength, and the equivalent brake deceleration is converted into the motor torque according to the vehicle information, so braking of the front axle motor and the rear axle motor is finally completed.
本发明公开了一种新能源汽车电机制动系统,包括滑行工况判断、滑行减速度计算、滑行制动力分配、前电机滑行再生制动力、后电机滑行再生制动力、目标车辆液压制动特性、后电机解析力、I曲线限制、电机、电池、车速等约束条件,ABS协调策略以及故障处理机制,前轴电机控制器,后轴电机控制器,当驾驶员放松油门踏板,检测到车速下降,对其工况进行判断,计算滑行减速度,从而通过滑行制动力分配模块对前电机和后电机进行再生制动力分配,当驾驶员踩下制动踏板的时,后轴电机根据制动强度主动补偿后轴制动器的当量制动减速度,在根据车辆信息转换成电机力矩,最终完成前、后轴电机的制动。
New energy automobile motor braking system
一种新能源汽车电机制动系统
2021-12-28
Patent
Elektronische Ressource
Chinesisch
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