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. 03, 2015
Filed:
Dec. 02, 2013
GM Global Technology Operations Llc, Detroit, MI (US);
Randall B. Dlugoss, Royak Oak, MI (US);
Paul G. Otanez, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system for controlling a hybrid powertrain having an electric motor, an engine and a transmission includes an engine control module that receives a torque request, and when the hybrid powertrain is being powered by the electric motor, determines whether to switch from the electric motor to the engine based on the torque request. A transmission control module, in response to a determination to switch from the electric motor to the engine, determines a target engine speed based on the torque request, and switches the hybrid powertrain from the electric motor to the engine based on a comparison between a current engine speed and the target engine speed.