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:
Sep. 21, 2010
Filed:
Nov. 27, 2007
Sibaprasad Chakrabarti, Torrance, CA (US);
Brian A. Welchko, Torrance, CA (US);
Silva Hiti, Redondo Beach, CA (US);
Sibaprasad Chakrabarti, Torrance, CA (US);
Brian A. Welchko, Torrance, CA (US);
Silva Hiti, Redondo Beach, CA (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
Methods and systems are provided for operating an electric motor having at least one winding coupled to first and second power supplies. A torque command for the electric motor is received. A present power reserve for the first and second power supplies is determined based at least in part on the torque command. An operating voltage for the second power supply is determined based on the present power reserve. The operating voltage for the second power supply is applied to the at least one winding. The application of the operating voltage allowing the present power reserve to flow between the first and second power supplies and the motor.