Patent ID: 6232748
Filing Date: 2001-05-15
Classification: B60K,B60L,B60W,H02J,Y02T,Y10S

Abstract:
An apparatus for controlling a battery installed in a hybrid vehicle having a combustion engine for providing a driving force, an electric motor for generating a drive-assist force for assisting the output of the engine, wherein said battery supplies electrical power to the motor, and, when the drive-assist force is not required by the engine, said motor is used as a generator to charged the battery, said apparatus is comprised by:a residual battery charge computation device for computing a level of residual battery charge in the battery;a battery temperature measuring device for measuring a temperature of the battery; anda charge/discharge controller that operates in such a way that, when a battery temperature measured by the battery temperature measuring device exceeds a threshold temperature, said charge/discharge controller permits only discharging until the residual battery charge is lowered to a level defined by a first specified value.