Method and device for determining charging environment, battery management system and charging and swapping station

Abstract

The present application relates to a method and device for determining a charging environment, a battery management system, and a charging and swapping station. The method includes: if a connection success signal output by a battery connection confirmation module is detected, obtaining the current voltage value output by a battery voltage detection module; Obtain the corresponding relationship between the voltage value environment; the corresponding relationship between the voltage value environment includes multiple environments, multiple voltage values, and the one-to-one correspondence between multiple environments and multiple voltage values; multiple environments include internal environments and external environments; multiple The voltage value is determined according to multiple power supply devices; the resistance value of the pull-down resistor of each power supply device in the multiple power supply devices is different from each other; the environment corresponding to the current voltage value is determined from the voltage value environment correspondence, and the environment is determined as Battery charging environment. In this way, the self-identification of the charging environment of the battery system can be realized, and the charging can be responded quickly, so that the 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

Images