Patents by Inventor Axel Christen

Axel Christen 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).

  • Method and circuit configuration for determining the pedal force as a control quantity for a brake system with anti-lock control
    Patent number: 5632531
    Abstract: To determine the pedal force as a control quantity for a brake system with anti-lock control, the drive motor of a hydraulic pump is switched over to generator operation during braking with anti-lock control, and the magnitude of the generator voltage and its fade-out behavior is evaluated. The hydraulic pump serves to return the pressure fluid which was discharged from the wheel brake for pressure reduction, or it serves for the supply of auxiliary pressure. The approximate supply pressure depending on the pedal force can be determined by the generator voltage and the fade-out behavior.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: May 27, 1997
    Assignee: ITT Automotive Europe GmbH
    Inventors: Ivica Batistic, Axel Christen