Patents by Inventor Regis Casteran

Regis Casteran 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).

  • Torque converter clutch slip control
    Patent number: 7513851
    Abstract: A method and system for regulating engagement of a torque converter clutch (TCC) in a vehicle incorporating a transmission that is driven by an engine through a torque converter includes determining a non-linear slip profile based on vehicle operating parameters, calculating an actual TCC slip, calculating a TCC ramp pressure based on the non-linear slip profile and the actual TCC slip and regulating a TCC engagement pressure based on the TCC ramp pressure.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: April 7, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Jean Sieffert, Regis Casteran
  • Torque converter clutch slip control
    Publication number: 20080058161
    Abstract: A method and system for regulating engagement of a torque converter clutch (TCC) in a vehicle incorporating a transmission that is driven by an engine through a torque converter includes determining a non-linear slip profile based on vehicle operating parameters, calculating an actual TCC slip, calculating a TCC ramp pressure based on the non-linear slip profile and the actual TCC slip and regulating a TCC engagement pressure based on the TCC ramp pressure.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 6, 2008
    Inventors: Jean Sieffert, Regis Casteran
  • Torque converter clutch dynamic control
    Patent number: 7302330
    Abstract: A method of dynamically controlling pressure to a torque converter clutch (TCC) of a torque converter coupled to a transmission is provided. The method includes: monitoring throttle position; monitoring engine speed; controlling pressure to the torque converter clutch to increase slip after the throttle position indicates a tip-in has occurred and when engine speed is low; regulating at least one of a transmission steady state pressure to the transmission and pressure to the torque converter to maintain the increased slip; and controlling pressure to the torque converter to reduce slip by engaging the torque converter clutch.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: November 27, 2007
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Vincent Holtz, Jean Sieffert, Lionel Toussaint, Regis Casteran, Christopher J. Trush