| abstract |
The controller calculates an input estimated value when the main battery is charged according to the increase in brake opening degree based on the current speed and the increase amount of the brake opening degree when the brake opening degree is increased. The controller controls the operation of the DC / DC converter before charging the main battery in accordance with the increase in the brake opening degree so as to calculate the current value calculated based on the input estimation value, Discharge is performed. As a result, it is possible to cancel out the unevenness of the salt concentration occurring at the time of charging by the unevenness of the salt concentration occurring at the time of discharging, to suppress the occurrence of the unevenness of the salt concentration after the main battery is charged, The occurrence of an increase in the internal resistance value of the battery can be suppressed. |