Patent ID: 6445160
Filing Date: 2002-09-03
Classification: H02J

Abstract:
A method for controlling the battery charging of an electric vehicle, comprising the steps of:determining whether the voltage of battery modules satisfies second failure criteria less strict than first failure criteria, if the voltage of the battery modules satisfies the first failure criteria in a charging mode; considering the state of a battery as a battery failure and not charging the battery, if the voltage of the battery modules satisfies the second failure criteria; charging the battery for a certain period of time on the charging condition of a failure mode stricter than the charging condition of a normal mode, if the voltage of the battery modules does not satisfy the second failure criteria; determining whether the voltage of the battery modules measured after the performance of the failure mode charging satisfies the first failure criteria; considering the state of a battery as a failure and not charging the battery, if the voltage of the battery modules measured after the performance of the failure mode charging satisfies the first failure criteria; and charging the battery on the charging condition of the normal mode, if the voltage of the battery modules measured after the performance of the failure mode charging does not satisfy the first failure criteria.