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:
Dec. 10, 2013
Filed:
May. 23, 2011
Chandra S. Namuduri, Troy, MI (US);
Suresh Gopalakrishnan, Farmington Hills, MI (US);
Keith D. Van Maanen, Birmingham, MI (US);
Bryan M. Ludwig, West Bloomfield, MI (US);
Bon Ho Bae, Torrance, CA (US);
Chandra S. Namuduri, Troy, MI (US);
Suresh Gopalakrishnan, Farmington Hills, MI (US);
Keith D. Van Maanen, Birmingham, MI (US);
Bryan M. Ludwig, West Bloomfield, MI (US);
Bon Ho Bae, Torrance, CA (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A powertrain system includes an electric motor/generator unit. Upon detecting an open high-voltage switch associated with a high-voltage DC electrical bus, low-voltage electrical power is employed to energize the high-voltage DC electrical bus, control parameters are adjusted to operate the electric motor/generator unit in a fault tolerant electric generation mode, an internal combustion engine is operated to spin the electric motor/generator unit, and the electric motor/generator unit is operated in the fault tolerant electric generation mode.