Recycling method for braking energy recycling strategy of distributed driving electric vehicle

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Recycling method for braking energy recycling strategy of distributed driving electric vehicle

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WANG XINJIAN / YAN XUNJIN / BAO XIAO

The invention discloses a recovery method of a distributed driving electric vehicle braking energy recovery strategy, which is characterized in that the recovery method obtains the optimal braking demand torque of each actuator through an upper controller, and decides the weight of the optimal motor braking torque of each actuator according to vehicle state parameters; and the braking energy recovery maximization is ensured in real time through the weight. By the adoption of the recovery method, aiming at the structural characteristics of the distributed driving electric automobile, the optimal braking demand torque of each actuator is obtained through the upper-layer controller according to the driving habits of a driver and the automobile running state parameters, so that the automobile braking energy recovery efficiency is improved, it is guaranteed that the braking torque of a driving motor is optimal, and the braking performance of the automobile is improved. Therefore, the driving mileage of the automobile is increased.

本发明公开了一种分布式驱动电动汽车制动能量回收策略的回收方法，其特征在于：所述回收方法通过上层控制器获得各执行器最优制动需求力矩，依据车辆状态参数决策各执行器最优电机制动力矩的权重，通过该权重实时保证制动能量回收最大化。采用本发明所述的回收方法，针对分布式驱动电动汽车的结构特点，根据驾驶员的驾驶习惯及车辆运行状态参数，通过上层控制器获得各执行器最优制动需求力矩，以改善汽车制动能量回收效率，保证驱动电机制动力矩最优，从而增加汽车的续航里程，具有推广应用价值。