| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power source device for a hybrid vehicle in which it can be prevented that voltage lowering of a battery for engine starting becomes larger when an electric power source for auxiliary equipment fails and electric power is supplied from a battery for engine starting through a resistance to on-vehicle electric equipment too upon supplying electric power from the battery for engine starting to a cell motor.SOLUTION: In an electric power source device for a hybrid vehicle, which is equipped on a hybrid vehicle comprising a motor for running and an engine and is constituted by a battery for engine starting that is for supplying electric power to a cell motor, an electric power source for auxiliary equipment that is for supplying electric power to on-vehicle electric equipment and a relay provided between the battery for engine starting and the electric power source for auxiliary equipment, provided are a resistance which is provided between the battery for engine starting and the electric power source for auxiliary equipment and is connected in parallel to the relay and an ECU which sets the vehicle speed at engine starting as lower and suppresses consumption power of the on-vehicle electric equipment more as an SOC that is a state of charging of the battery for engine starting is lower. |
