| 摘要 |
PROBLEM TO BE SOLVED: To provide a charge control device for the secondary battery of an electric vehicle by which overcharging and undercharging of the secondary battery can be avoided. SOLUTION: An operation device 6a calculates discharging capacity from he total discharge value and the regenerative charge value of a battery 1, until it is charged in accordance with a formula: (discharge capacit) = (total discharge value) - (regenerative charge value) and calculates an optimum charge value according to a formula: (optimum charge value) = (discharge capacity)×1.05. If an accumulated charge value in the charging state reaches an optimum charge value, a control device 6 controls a charger 7 so as to discontinue the charging. By controlling the charge such as this, the charge corresponding to the state of the battery can be executed, so that the overcharging and the undercharging can be avoided. |
