Patent ID: 8103396

Claim:
An electric powered vehicle, comprising: an AC electric motor generator having a rotor with a magnet attached, and configured to allow alternate transmission of rotating force to/from a wheel; an inverter device having a plurality of power semiconductor switching elements, and configured to convert a DC voltage of a power source to a driving voltage for said AC electric motor generator; a controller for controlling said inverter device; a shift position selecting unit for selecting one of a plurality of shift positions including at least a parking position, in accordance with an operation by a driver; a parking lock mechanism activated when said parking position is selected; and a power source position selecting unit for selecting one of a plurality of power source positions determining a group of devices to be objects of power supply among devices mounted on the vehicle, in accordance with an operation by the driver; wherein said plurality of power source positions include a first power source position allowing control of said power semiconductor switching element by said controller and a second power source position not allowing said control; said electric powered vehicle further comprising an overlapped state avoiding unit for avoiding a state in which selection of said second power source position and selection of a shift position at which said parking lock mechanism is inactive are overlapped, when a short-circuit failure of any of said plurality of power semiconductor switching elements has been detected.