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. 07, 2017
Filed:
Apr. 23, 2015
GM Global Technology Operations Llc, Detroit, MI (US);
Meng Wang, Novi, MI (US);
Anthony Christman, Madison Heights, MI (US);
Poh Fong Chin, Novi, MI (US);
John Janczak, Commerce Township, MI (US);
Anthony H. Heap, Ann Arbor, MI (US);
Kee Yong Kim, Ann Arbor, MI (US);
Bryan J. Morton, Saline, MI (US);
Goro Tamai, Bloomfield Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A powertrain system is described, and includes an internal combustion engine and an electric machine configured to generate propulsion torque responsive to a driver torque request. A method for operating the powertrain system includes determining, in response to a request to execute an engine autostart operation, whether a driveline torque sag may occur. The method further includes forgoing executing the engine autostart operation when it is determined that a driveline torque sag will occur during the execution of the engine autostart operation.