Patents by Inventor Heinz Wirdel

Heinz Wirdel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dual-voltage vehicle electric system
    Patent number: 7180205
    Abstract: The present invention discloses a dual-voltage vehicle electric system in which a dual-battery vehicle electric system is integrated. In this dual-voltage vehicle electric system, two conventional vehicle batteries are used and are generally operated while connected in series. The series circuit provides the supply voltage for the vehicle electric system at a relatively high voltage for high-power loads. In order to implement an emergency start, both batteries, specifically a starter battery (BS) and a vehicle electric system battery (BB), are connected in parallel. In the case of a defective generator (G) or DC/DC converter (1), an emergency operating supply via battery is possible.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: February 20, 2007
    Assignee: DaimlerChrysler AG
    Inventor: Heinz Wirdel
  • Dual-voltage vehicle electric system
    Publication number: 20060110655
    Abstract: The present invention discloses a dual-voltage vehicle electric system in which a dual-battery vehicle electric system is integrated. In this dual-voltage vehicle electric system, two conventional vehicle batteries are used and are generally operated while connected in series. The series circuit provides the supply voltage for the vehicle electric system at a relatively high voltage for high-power loads. In order to implement an emergency start, both batteries, specifically a starter battery (BS) and a vehicle electric system battery (BB), are connected in parallel. In the case of a defective generator (G) or DC/DC converter (1), an emergency operating supply via battery is possible.
    Type: Application
    Filed: January 16, 2004
    Publication date: May 25, 2006
    Inventor: Heinz Wirdel