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);
Kee Yong Kim, Ann Arbor, MI (US);
Samantha Victoria Lado, Pittsfield Township, MI (US);
Anthony H. Heap, Ann Arbor, MI (US);
Kee Yong Kim, Ann Arbor, MI (US);
Samantha Victoria Lado, Pittsfield 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 transmission configured to transfer torque among an engine, at least one electric machine, and a driveline includes requesting execution of a shift from a first operating range state to a second operating range state. Costs associated with operating the transmission in each of the plurality of operating range states including the first and second operating range states are monitored and an energy differential between the first and second operating range states is determined based on the monitored costs. The shift from the first operating range state to the second operating range state is executed only if the energy differential achieves an integration threshold.