Patent ID: 8125187
Filing Date: 2012-02-28
Classification: H02J,Y02T

Abstract:
1. A method of controlling battery charging and discharging in a hybrid car power source, the method comprising: a step to detect remaining capacity of batteries that supply power to a motor that drives the hybrid car; and based on detection results, a step to control charging and discharging to keep detected remaining capacity within a pre-set first targeted control range when battery conditions are normal; and a step to control charging and discharging to keep detected remaining battery capacity within a second targeted control range, which is narrower than the first targeted control range, when an abnormality is detected; wherein when an abnormality is detected, the second targeted control range is set to include the remaining battery capacity detected at the time the range for controlling remaining capacity is switched from the first targeted control range to the second targeted control range, which is the remaining capacity at abnormality detection.