The invention relates to the technical field of power batteries of vehicles, in particular to a power battery active equalization method and system and a vehicle, and the method comprises the steps: obtaining the voltage of each single battery of a power battery; according to the voltage of each battery monomer, determining the battery monomer meeting an active equalization condition in each battery monomer; and sequentially conducting loops of the battery monomers meeting the active equalization condition and the storage battery, and equalizing the voltage of each battery monomer through charging and discharging between the storage battery and the battery monomers meeting the active equalization condition. Therefore, the problems of low equalization efficiency caused by complex control circuits and control logics during active equalization of internal single batteries in the prior art are solved; and because the consistency of the single batteries is relatively poor, the service life of the batteries is relatively short, and the like.
本申请涉及车辆的动力电池技术领域,特别涉及一种动力电池主动均衡方法、系统及车辆,其中,方法包括:获取动力电池的各电池单体电压;根据各电池单体电压确定各电池单体中满足主动均衡条件的电池单体;依次导通满足主动均衡条件的电池单体与蓄电池的回路,通过蓄电池与满足主动均衡条件的电池单体相互之间的充放电均衡各电池单体电压。由此,解决了相关技术中,电池内部单体主动均衡时,存在控制电路和控制逻辑复杂,使得均衡效率较低;且因为电池单体一致性较差,使得电池寿命较短等问题。
Power battery active equalization method and system and vehicle
动力电池主动均衡方法、系统及车辆
2025-01-21
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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