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:
Jun. 11, 2013
Filed:
Aug. 04, 2010
Kumaraswamy V. Hebbale, Troy, MI (US);
Chi-kuan Kao, Troy, MI (US);
Chunhao J. Lee, Troy, MI (US);
Xu Chen, Ann Arbor, MI (US);
Jeremy V. Horgan, Livonia, MI (US);
Farzad Samie, Franklin, MI (US);
Kumaraswamy V. Hebbale, Troy, MI (US);
Chi-Kuan Kao, Troy, MI (US);
Chunhao J. Lee, Troy, MI (US);
Xu Chen, Ann Arbor, MI (US);
Jeremy V. Horgan, Livonia, MI (US);
Farzad Samie, Franklin, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A powertrain includes a torque generative device and a torque converter having an impeller, a turbine and a torque converter clutch. A method to control torque converter slip includes monitoring a reference slip and a turbine speed of the torque converter, determining a turbine torque based upon the reference slip and the turbine speed, determining a feed forward torque converter clutch pressure command based upon the turbine torque, a torque generative device torque, and a TCC gain, and controlling the torque converter clutch based upon the feed forward torque converter clutch pressure command.