A method and system for equalizing an power level of a vehicle battery pack, and a vehicle. The method comprises: when a vehicle is in a power-on state and the vehicle meets an equalization condition for triggering equalization, acquiring battery data of a vehicle battery pack; by means of calculation on the basis of the battery data, obtaining an equalization time and a power level required for equalizing, and selecting an equalization mode on the basis of a use scenario and a use habit; and obtaining the number of low-voltage battery cells, when the number of the low-voltage battery cells is less than or equal to a preset number of battery cells, selecting a storage battery having a preset voltage to supplement power to the low-voltage battery cells until equalization is achieved and a target power level is reached, and when the number of the low-voltage battery cells is greater than the preset number of battery cells, reducing a power level of a high-power level battery cell to the target power level by using a resistance power consumption mode. According to the system, the equalization condition for triggering battery equalization is added, the equalization mode is intelligently selected, the equalization time is accurately calculated, so that occurrence of false equalization is avoided, and power supply equalization or discharge equalization is selected on the basis of a situation, thereby improving the performance of the vehicle battery pack and prolonging the service life thereof.
METHOD AND SYSTEM FOR EQUALIZING POWER LEVEL OF VEHICLE BATTERY PACK, AND VEHICLE
2025-06-12
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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