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:
Apr. 16, 2019
Filed:
Aug. 17, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Norman K. Bucknor, Troy, MI (US);
Suresh Gopalakrishnan, Troy, MI (US);
Lei Hao, Troy, MI (US);
Derek F. Lahr, Howell, MI (US);
Dongxu Li, Troy, MI (US);
Shifang Li, Shelby Township, MI (US);
Chandra S. Namuduri, Troy, MI (US);
Thomas W. Nehl, Shelby Township, MI (US);
Avoki M. Omekanda, Rochester, MI (US);
Rashmi Prasad, Troy, MI (US);
Farzad Samie, Franklin, MI (US);
Aaron M. Sullivan, Huntington Woods, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A hybrid vehicle propulsion includes an engine and a first electric machine, where each is configured to selectively provide torque to propel the vehicle. The propulsion system also includes a second electric machine coupled to the engine to provide torque to start the engine from an inactive state. A high-voltage power source is configured to power both of the first electric machine and the second electric machine over a high-voltage bus. The propulsion system further includes a controller programmed to deactivate the engine and propel the vehicle using the first electric machine in response to the vehicle being driven at a steady-state speed for a predetermined duration of time. The controller is also programmed to restart the engine using the second electric machine powered by the high-voltage power source.