The invention discloses a regenerative braking and mechanical braking torque distribution method of an electric vehicle, a computer device and a storage medium, and the regenerative braking and mechanical braking torque distribution method of the electric vehicle is used when the braking strength is smaller than a strength threshold value (non-emergency braking). In the combined braking process, combined braking is executed under the condition that the state of charge of the power battery is smaller than a charge threshold (the power battery is suitable for regenerative braking), and in the combined braking process, an optimal braking energy recovery strategy is executed under the condition that the slip rate is smaller than a slip rate threshold (the sideslip risk of the electric vehicle is small), so that the braking stability can be kept, and the recovered energy can be improved; when the slip rate is larger than or equal to the slip rate threshold value (the sideslip risk of the electric vehicle is large), the parallel braking energy recovery strategy is executed, at the moment, the braking strategy with regenerative braking as a main mode and mechanical braking as an auxiliary mode is executed in combination with the vehicle speed, energy can be recovered, the sideslip risk of the electric vehicle can be reduced, and driving safety is guaranteed. The invention is widely applied to the technical field of automobiles.
本发明公开了一种电动车的再生制动和机械制动力矩分配方法、计算机装置及存储介质,电动车的再生制动和机械制动力矩分配方法在制动强度小于强度阈值(非紧急制动),且动力电池荷电状态小于荷电阈值(动力电池适合进行再生制动)的情况下,执行联合制动,在联合制动过程中,在滑移率小于滑移率阈值(电动车侧滑风险较小)的情况下执行最佳制动能量回收策略,能保持制动稳定性且提高回收能量;在滑移率大于或等于滑移率阈值(电动车侧滑风险较大)的情况下执行并联式制动能量回收策略,此时结合车速执行再生制动为主、机械制动为辅的制动策略,可以兼具回收能量以及降低电动车侧滑风险,保障行车安全。本发明广泛应用于汽车技术领域。
Regenerative braking and mechanical braking torque distribution method and device of electric vehicle and storage medium
电动车的再生制动和机械制动力矩分配方法、装置和存储介质
2023-05-02
Patent
Electronic Resource
Chinese
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