The invention relates to the technical field of power batteries, in particular to a feedback allowable power control method and device, a vehicle and a medium, and the method comprises the steps: obtaining the highest monomer voltage of a power battery at the current moment; if the highest monomer voltage of the power battery at the current moment is greater than a preset overvoltage threshold value, acquiring the feedback actual power of the power battery at the moment when the highest monomer voltage of the power battery starts to be greater than the preset overvoltage threshold value, and the highest monomer voltage of the power battery at the previous moment; according to the highest monomer voltage of the power battery at the current moment and the highest monomer voltage of the power battery at the previous moment, calculating the voltage change trend and the voltage change quantity of the highest monomer voltage of the power battery, and determining the target change rate of the allowable power fed back by the power battery at the current moment; and controlling the feedback allowable power of the power battery according to the feedback actual power and the target change rate. Therefore, the problem that in the prior art, the vehicle moves forwards due to sudden power change or braking force weakening caused by overcharge of the battery is solved.
本发明涉及动力电池技术领域,特别涉及一种回馈允许功率控制方法、装置、车辆及介质,其中,包括:获取当前时刻动力电池的最高单体电压;若当前时刻动力电池的最高单体电压大于预设过压阈值,则获取动力电池的最高单体电压开始大于预设过压阈值的时刻动力电池的回馈实际功率、以及上一时刻动力电池的最高单体电压;根据当前时刻动力电池的最高单体电压和上一时刻动力电池的最高单体电压,计算动力电池的最高单体电压的电压变化趋势和电压变化量,确定当前时刻动力电池回馈允许功率的目标变化速率;根据回馈实际功率和目标变化速率控制动力电池的回馈允许功率。由此,解决了现有技术电池过充引发动力突变或制动力减弱,导致车辆前窜等问题。
Feedback allowable power control method and device of power battery, vehicle and medium
动力电池的回馈允许功率控制方法、装置、车辆及介质
2024-05-31
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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