The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2007
Filed:
Sep. 01, 2006
Vincent Holtz, Rosheim, FR;
Jean Sieffert, Lingolsheim, FR;
Lionel Toussaint, Fegersheim, FR;
Regis Casteran, Strasbourg, FR;
Christopher J. Trush, Novi, MI (US);
Vincent Holtz, Rosheim, FR;
Jean Sieffert, Lingolsheim, FR;
Lionel Toussaint, Fegersheim, FR;
Regis Casteran, Strasbourg, FR;
Christopher J. Trush, Novi, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
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.