Method for monitoring a charging process of a battery

摘要

A method is described for monitoring a charging process of a battery, in which cell voltages of a plurality of battery cells are measured at regular time intervals, and loading of the battery by a process of switching on an additional electrical load is prevented if the measured cell voltage of one battery cell exceeds a predetermined cell voltage threshold value. A motor vehicle is also described, which is configured to carry out the method according to the disclosure during a battery charging process. In addition, a battery system is described, in which a controller is configured to determine an estimated value as a function of measured battery parameters during a charging process of the battery. The estimated value corresponds to the maximum temperature in the battery if the charging process is continued without interruption.

主权项

1. A method for monitoring a charging process of a battery having a plurality of battery cells connected in series, the battery being connected to a charging module configured to supply the battery with a charging current, and to at least one additional electrical consumer, the method comprising:
measuring, with sensors connected to a main control device, cell voltages of the plurality of battery cells at regular time intervals; and preventing, with the main control device, a loading of the battery caused by a switch-on process of the at least one additional electrical consumer, by at least one of (i) actuating the at least one additional electrical consumer with the main control device to disconnect the at least one additional electrical consumer from the battery, and (ii) operating the charging module with the main control device to abort the charging process of the battery, if a cell voltage of the measured cell voltages of the plurality of battery cells exceeds a predetermined cell voltage threshold value.