×

ELECTRIC POWERED VEHICLE AND ITS CONTROL METHOD

  • US 20100030412A1
  • Filed: 12/21/2007
  • Published: 02/04/2010
  • Est. Priority Date: 01/25/2007
  • Status: Active Grant
First Claim
Patent Images

1. 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;

    whereinsaid 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 comprisingan 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.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×