Abstract: A method for acquiring and setting a charging cut-off capacity, and a charging management system are disclosed. In the system, a cloud server is communicatively connected to a charging apparatus which is communicatively connected to a new energy vehicle. The cloud server can acquire e battery history data of the new energy vehicle according to a charging request of the charging apparatus for a power battery of the new energy vehicle, so as to calculate the charging cut-off capacity of the charging apparatus for the power battery, and send the charging cut-off capacity to the charging apparatus. The charging apparatus can perform charging and battery-capacity monitoring on the power battery according to the charging cut-off capacity. The method provided by the present invention realizes intelligent calculation and setting of the charging cut-off capacity, which can effectively improve the power consumption and charging safety of the new energy vehicle.

Abstract: A method, a device and a system for vehicle power battery auxiliary equilibrium is provided. The method includes: determining a degree value of a power battery inconsistency problem by a cloud platform according to data of the power battery; and according to the degree value of the power battery inconsistency problem, triggering by the cloud platform an auxiliary equilibrium charging strategy to be issued to a charging device, so that the charging device charges the power battery according to the issued auxiliary equilibrium charging strategy. According to the embodiments of the present application, it is possible to assist the equilibrium function of a vehicle-side battery management system, repair the power battery inconsistency problem, increase the full-power mileage of the electric vehicles, extend the service life of the power battery, and reduce the cost of using the vehicle. It does not affect the user’s daily vehicle use experience.