Patents by Inventor Chris Liddington

Chris Liddington 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 of controlling vacuum pump for vehicle brake booster
    Patent number: 9593680
    Abstract: An electric brake booster vacuum pump of a vehicle has a deactivation level determined according to a percentage of maximum available vacuum at the instant altitude of the vehicle. The activation level may be determined in the same way. The invention provides for earlier on-switching of a vacuum pump at altitude, while ensuring that the off-switching value is achievable at low atmospheric pressure.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: March 14, 2017
    Assignee: Jaguar Land Rover Limited
    Inventor: Chris Liddington
  • METHOD OF CONTROLLING VACUUM PUMP FOR VEHICLE BRAKE BOOSTER
    Publication number: 20150037172
    Abstract: An electric brake booster vacuum pump of a vehicle has a deactivation level determined according to a percentage of maximum available vacuum at the instant altitude of the vehicle. The activation level may be determined in the same way. The invention provides for earlier on-switching of a vacuum pump at altitude, whilst ensuring that the off-switching value is achievable at low atmospheric pressure.
    Type: Application
    Filed: June 28, 2012
    Publication date: February 5, 2015
    Applicant: JAGUAR LAND ROVER LIMITED
    Inventor: Chris Liddington