Patents by Inventor Steven J Horton

Steven J Horton 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).

  • Controller for an electric power assisted steering system and an electric power assisted steering system
    Patent number: 6266591
    Abstract: A controller for an electric power assisted steering system comprises a drive circuit (2) for controlling current to a motor (1) and a data processor (8) for controlling the motor current and hence assistance torque. A circuit (9) generates a current limit which is a monotonically decreasing function of vehicle speed. A comparator (6) compares motor current with the current limit and switches off the drive circuit (2) if the current limit is exceeded.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: July 24, 2001
    Assignee: TRW LucasVarity Electric Steering Limited
    Inventors: Russell Wilson-Jones, Steven J Horton