Patents by Inventor Steven Dale Keen

Steven Dale Keen 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).

  • Rough road detection using suspension system information
    Patent number: 6952637
    Abstract: Direct sensing of rough road conditions are used to modify operation of a wheel slip control system. At least one suspension sensor (139) senses an operating parameter of the suspension system. A road surface classifier is responsive to the suspension pension sensor (139) for generating a road surface signal representing a roughness of a road surface over which the vehicle travels. A braking system includes a wheel speed sensor and a brake actuator. An active braking control detector wheel slip in response to the wheel speed sensor (108) during at least one of braking or accelerating of the vehicle and modulates the brake actuator in response to the detected wheel slip. The active braking control is responsive to the road surface signal for modifying modulation f the brake actuator as a function of the road surface signal.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: October 4, 2005
    Assignee: Kelsey-Hayes Company
    Inventors: Richard J. Barron, Danny R. Milot, Kenneth A. Doll, Steven Dale Keen
  • Rough road detection using suspension system information
    Publication number: 20040015279
    Abstract: Direct sensing of rough road conditions are used to modify operation of a wheel slip control system. At least one suspension sensor (139) senses an operating parameter of the suspension system. A road surface classifier is responsive to the suspension sensor (139) for generating a road surface signal representing a roughness of a road surface over which the vehicle travels. A braking system includes a wheel speed sensor and a brake actuator. An active braking control detector wheel slip in response to the wheel speed sensor (108) during at least one of braking or accelerating of the vehicle and modulates the brake actuator in response to the detected wheel slip. The active braking control is responsive to the road surface signal for modifying modulation f the brake actuator as a function of the road surface signal.
    Type: Application
    Filed: March 6, 2003
    Publication date: January 22, 2004
    Inventors: Richard J. Barron, Danny R. Milot, Kenneth A. Doll, Steven Dale Keen