Patents by Inventor Christian H P Schumacher

Christian H P Schumacher 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).

  • Vehicle control of a locked drive system
    Patent number: 6595602
    Abstract: A vehicle includes multiple wheels, a locking drive differential, and a stability controller. A first wheel is mechanically coupled to a second wheel. The locking drive differential mechanically couples the second wheel to a third wheel. The stability controller is coupled to the third wheel. The stability controller is programmed to attain a slip rate of about the first and the second wheel at the third wheel, which stabilizes the vehicle in an over-steer condition. The method applies a modulated stability pressure to the third wheel until the third wheel attains about the combined slip rate of the first wheel and the second wheel and a fourth wheel is rotating at about the velocity of the vehicle.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: July 22, 2003
    Assignee: Continental Teves, Inc.
    Inventors: Mile Jokic, Robert D. Kostadina, Martin Kuemmel, Markus E. Schneider, Christian H. P. Schumacher, William Skellenger
  • Algorithm for determining travel direction for automobiles
    Patent number: 6577948
    Abstract: A method of determining the direction of travel of a vehicle independent of the transmission gear position. A plurality of yaw rate values are utilized, which are summed or integrated over a period of time to generate a plurality of yaw rate sum values. The sign of each yaw rate sum value is compared. This comparison of the signs of each yaw rate sum value results in a confidence value that is used to determine the direction of travel. Preferably, the actual gear position, a calculated gear ratio, and the vehicle's velocity are used to build confidence in the resulting confidence value given above.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: June 10, 2003
    Assignee: Continental Teves, Inc.
    Inventors: William J. Skellenger, Christian H P Schumacher
  • Vehicle control of a locked drive system
    Publication number: 20020180265
    Abstract: A vehicle includes multiple wheels, a locking drive differential, and a stability controller. A first wheel is mechanically coupled to a second wheel. The locking drive differential mechanically couples the second wheel to a third wheel. The stability controller is coupled to the third wheel. The stability controller is programmed to attain a slip rate of about the first and the second wheel at the third wheel, which stabilizes the vehicle in an over-steer condition. The method applies a modulated stability pressure to the third wheel until the third wheel attains about the combined slip rate of the first wheel and the second wheel and a fourth wheel is rotating at about the velocity of the vehicle.
    Type: Application
    Filed: June 5, 2001
    Publication date: December 5, 2002
    Inventors: Mile Jokic, Robert D. Kostadina, Martin Kuemmel, Markus E. Schneider, Christian H.P. Schumacher, William Skellenger