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:
Oct. 02, 2012
Filed:
Jan. 30, 2009
David Wright, Howell, MI (US);
Pascal Tissot, Gerstheim, FR;
Vincent Holtz, Rosenwiller, FR;
Nicolas Diss, Strasbourg, FR;
Patrick Dromard, Heiligeustin, FR;
David Wright, Howell, MI (US);
Pascal Tissot, Gerstheim, FR;
Vincent Holtz, Rosenwiller, FR;
Nicolas Diss, Strasbourg, FR;
Patrick Dromard, Heiligeustin, FR;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method is provided for calibrating an automatic transmission with a torque converter clutch. In order to avoid that the torque converter clutch still has capacity even if the pressure is commanded to be zero without modifying the behavior of the torque converter clutch behavior of all the production, the torque converter clutch minimum offset transmissions are detected and only on these transmissions the torque converter minimum clamp pressure is decreased by a pressure step and the torque converter clutch coast adapt reference cell is increased.