Patent ID: 9203255
Filing Date: 2015-12-01
Classification: B60L,H02J,Y02E,Y02T

Abstract:
1. A control method for an electric vehicle comprising the steps of: measuring, via a sensor assembly, a first voltage of each of a plurality of battery cell modules and an external temperature before a start of recharging of the plurality of battery cell modules; determining whether recharging is completed by measuring a recharge voltage of the plurality of battery cell modules after recharging is performed for a predetermined time set by the first voltage and the external temperature; calculating, when it is determined that recharging is completed, a degree of voltage variation based on the first voltage and the recharging voltage, and determining whether or not at least one of the plurality of battery cell modules is abnormal based on the degree of voltage variation and a set reference degree of voltage variation; and performing a management operation related to supply of electric energy in the plurality of battery cell modules to each part of the electric vehicle based on a determination that the plurality of battery cell modules are in a normal state, wherein the set reference degree of voltage variation is determined based on the external temperature.