Patents by Inventor Ian Duncan Kennedy

Ian Duncan Kennedy 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).

  • Patent number: 7275455
    Abstract: The present invention broadly comprises a method for the control of a gear engagement mechanism of an automated multiple-ratio transmission having at least one drive shaft and at least one output shaft, including assigning a synchronizer to at least one gear step, applying a load to the synchronizer in order to engage or disengage a gear step of the transmission, and varying the load that is applied to the synchronizer as a function of the service life of the transmission system.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: October 2, 2007
    Assignee: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventor: Ian Duncan Kennedy
  • Patent number: 6569057
    Abstract: A motor vehicle transmission system blocks the disengagement of the clutch (14) and the shifting of the transmission (12) into neutral for starting the engine (10), if the transmission is already in gear at the time the system is switched on. The blocking is canceled if the main brake (58) is applied and the application of the brake (58) is confirmed by a brake sensor (56), or if the driver moves a shifter element (24) from a non-neutral shift-gate position to the neutral shift-gate position after the system has been turned on.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: May 27, 2003
    Assignee: LuK Lamellen und Kupplungsbau Beteiliungs KG
    Inventors: Charles John Jones, Robin John Warren, Ian Duncan Kennedy
  • Publication number: 20020056585
    Abstract: A motor vehicle transmission system blocks the disengagement of the clutch (14) and the shifting of the transmission (12) into neutral for starting the engine (10), if the transmission is already in gear at the time the system is switched on. The blocking is canceled if the main brake (58) is applied and the application of the brake (58) is confirmed by a brake sensor (56), or if the driver moves a shifter element (24) from a non-neutral shift-gate position to the neutral shift-gate position after the system has been turned on.
    Type: Application
    Filed: October 15, 2001
    Publication date: May 16, 2002
    Applicant: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Charles John Jones, Robin John Warren, Ian Duncan Kennedy
  • Patent number: 5902211
    Abstract: A clutch control system for the automatic control of a motor vehicle clutch which connects an engine with a gearbox under the control of a driver operated gear ratio selector lever. The control system controls both initial clutch take-up on starting of the vehicle, clutch re-engagement following each ratio change, clutch disengagement on movement of the gear selector lever to change the operative ratio of the gearbox, and clutch disengagement on the coming to rest of the vehicle. The clutch control system also warns the driver if he attempts to drive away in a designated non take-up gear or in any gear in a predetermined abusive manner and may be arranged to promote rapid engagement or disengagement of the clutch in certain abusive conditions to reduce energy generation in the clutch.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: May 11, 1999
    Assignee: Automotive Products, plc
    Inventors: Charles John Jones, Ian Duncan Kennedy