Patent ID: 7482779

Claim:
A control apparatus of an electricity accumulation mechanism mounted on a vehicle, comprising: regulation means for regulating charging power to said electricity accumulation mechanism and discharging power from said electricity accumulation mechanism; detect means for detecting a value related to at least one of a square-average value of a charging and discharging current of said electricity accumulation mechanism, a temperature of said electricity accumulation mechanism and a rate of change in an acceleration pedal position; storage means for storing a history related to said detected value; calculation means for calculating a load frequency based on at least one of the square-average value of the charging and discharging current of said electricity accumulation mechanism, the temperature of said electricity accumulation mechanism and the rate of change in an acceleration pedal position; determination means for determining a deterioration degree of said electricity accumulation mechanism based on said stored history; and adjustment means for adjusting regulation by said regulation means based on said deterioration degree, so that a load frequency is substantially equalized at different values for at least one of square-average value of the charging and discharging current of said electricity accumulation mechanism, the temperature of said electricity accumulation mechanism, and the rate of change in an acceleration pedal position, wherein said adjustment means includes means for relaxing said regulation when said deterioration degree is determined to be smaller than a predetermined degree, and said adjustment means includes means for tightening said regulation when said deterioration degree is determined to be greater than a predetermined degree.