Patent ID: 8280572
Filing Date: 2012-10-02
Classification: B60L,Y02T

Abstract:
1. A secondary battery temperature-increasing control apparatus for increasing a temperature of a secondary battery by controlling a ripple generating device configured to actively cause a ripple current to flow in the secondary battery, the secondary battery temperature-increasing control apparatus comprising: a first calculating electronic control unit (ECU) section that calculates a first value indicating an allowable output power of the secondary battery before a temperature increase operation for increasing the temperature of the secondary battery is performed, the allowable output power being determined in advance based on the temperature and a state of charge (SOC) of the secondary battery; a second calculating ECU section that calculates a second value indicating the allowable output power achieved when the temperature increase operation on the secondary battery is performed, based on an amount of variation in the temperature and an amount of variation in the SOC that occur when the temperature increase operation on the secondary battery is performed; and a determining ECU section that determines whether to perform the temperature increase operation on the secondary battery so that when the second value is equal to or greater than the first value, the temperature increase operation on the secondary battery is performed by controlling the ripple generating device and, when the second value is smaller than the first value, the temperature increase operation on the secondary battery is not performed.