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. 04, 2014
Filed:
Aug. 09, 2012
Anthony H. Heap, Ann Arbor, MI (US);
Yaoyao Wei, Novi, MI (US);
Kee Yong Kim, Ann Arbor, MI (US);
Samantha Victoria Lado, Pittsfield Township, MI (US);
John Janczak, Commerce Township, MI (US);
Anthony H. Heap, Ann Arbor, MI (US);
Yaoyao Wei, Novi, MI (US);
Kee Yong Kim, Ann Arbor, MI (US);
Samantha Victoria Lado, Pittsfield Township, MI (US);
John Janczak, Commerce Township, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for stabilizing selection between a plurality of operating range states of an electro-mechanical multi-mode transmission configured to transfer torque among an engine, at least one electric machine, and a driveline includes requesting operation of the transmission in a preferred operating range state while a shift from a first operating range state to a second operating range state is in progress prior to achieving the second operating range state. Powertrain information is monitored and compared to a driver perception threshold only if a change of mind condition is detected. The shift to the second operating range state is avoided and a shift to the preferred operating range state is commanded if the powertrain information does not violate the driver perception threshold.