POWER SUPPLY CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a power supply control device that can switch connection modes of a plurality of batteries between series connection and parallel connection and reduce sudden torque change of an electric motor in accordance with the series/parallel switching.SOLUTION: The power supply control device comprises: an electric motor 107 as a driving source of a vehicle; an electric storage having a plurality of batteries whose connection mode can be switched between series connection and parallel connection; a series/parallel switching portion 120 that switches connection modes between series connection and parallel connection; a required torque introducing portion 181 that introduces, on the basis of required driving force for the vehicle, required torque for the electric motor; a torque limit value setting portion 183 for setting, on the basis of at least electric power that the electric storage can output, a torque limit value for the electric motor; and a command torque setting portion 185 that sets, on the basis of at least a smaller value of the required torque and the torque limit value, command torque to the electric motor. When the command torque setting portion 185 sets the torque limit value as command torque during a series/parallel switching operation, a filter processing portion 187 performs filter processing to the command torque after completion of the series/parallel switching operation.