Charging environment determination method and device, battery management system and battery charging and replacing station

Abstract

The invention relates to a charging environment determination method and device, a battery management system and a battery charging and replacing station. The method comprises the steps: obtaining a current voltage value outputted by a voltage detection module of a battery if a connection success signal output by a connection confirmation module of the battery is detected; obtaining a voltage value environment corresponding relation, wherein the voltage value environment corresponding relation includes a plurality of environments, a plurality of voltage values and one-to-one correspondence between the plurality of environments and the plurality of voltage values; the plurality of environments include an internal environment and an external environment; the plurality of voltage values are determined according to the plurality of power supply devices; resistance values of pull-down resistors of the plurality of power supply devices are different from each other; and determining an environment corresponding to the current voltage value from the voltage value environment corresponding relation, and determining the environment as a charging environment of the battery. Thus, self-identification of the charging environment of the battery system can be realized, charging can be quickly responded, and charging time can be shortened.

Description

technical field [0001] This application relates to the technical field of new energy vehicles, in particular to a method and device for determining a charging environment, a battery management system and a charging and swapping station. Background technique [0002] The charging and swapping station is an energy station that provides charging and quick replacement of the power battery of an electric vehicle. Electric vehicles require their electrical energy to be supplemented for continuous driving. The supplement of electric energy can be divided into vehicle charging (fast charging, conventional charging and slow charging) and quick battery replacement. [0003] Vehicle charging refers to the way in which the vehicle is directly connected to an AC or DC power source. [0004] Quick battery replacement means that the battery is not loaded on the vehicle when the power battery is charged, but is charged on the charging rack. The quick replacement method of the power batte...

AI Technical Summary

Problems solved by technology

According to different charging environments, the charging logic and strategy of the battery system need to be treated differently. Otherwise, the battery system cannot distinguish and count the charging amount when the gun is inserted in the internal environment of the vehicle and the charging amount outside the vehicle after it is removed, that is, at the charging station. ; At the same time, it cannot meet the requirements of data statistics and billing for the operation of charging and swapping stations

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