Patents Assigned to Toyota Jidosha Kabushiki Japan
  • Valve timing control device and control method for internal combustion engine
    Patent number: 7316213
    Abstract: A valve timing control device is provided, allowing downsizing of an electric motor that drives a variable mechanism of valve timing. An electronic control device drives a VVT drive electric motor with a crankshaft rotated towards reducing the cam torque qualified as a resistance through a motor generator when a valve timing modification request is made in preparation to engine startup.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: January 8, 2008
    Assignee: Toyota Jidosha Kabushiki Japan
    Inventor: Ryuta Teraya