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:
May. 15, 2007
Filed:
Oct. 14, 2003
Todd M Steinmetz, Indianapolis, IN (US);
Anthony H. Heap, Indianapolis, IN (US);
Gregory A. Hubbard, Brighton, MI (US);
Jy-jen F. Sah, West Bloomfield, MI (US);
Todd M Steinmetz, Indianapolis, IN (US);
Anthony H. Heap, Indianapolis, IN (US);
Gregory A. Hubbard, Brighton, MI (US);
Jy-Jen F. Sah, West Bloomfield, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A multi-mode hybrid transmission has speed control provided via an open loop model derived as a function of preselected transmission accelerations and controlled and uncontrolled transmission torques. Motor torques are selected as the controlled torques and other preselected transmission torques are selected as the uncontrolled torques. The control also employs a closed loop control effort responsive to at least one preselected transmission speed error.