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:
Jul. 13, 2010
Filed:
Sep. 12, 2007
Yo Chan Son, Torrance, CA (US);
Gabriel Gallegos-lopez, Torrance, CA (US);
Silva Hiti, Redondo Beach, CA (US);
Michael Milani, San Pedro, CA (US);
Milun Perisic, Torrance, CA (US);
Yo Chan Son, Torrance, CA (US);
Gabriel Gallegos-Lopez, Torrance, CA (US);
Silva Hiti, Redondo Beach, CA (US);
Michael Milani, San Pedro, CA (US);
Milun Perisic, Torrance, CA (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
According to an example embodiment, a method is provided for limiting an operational temperature of a motor. The method includes generating a maximum allowable current I*for a motor based on a temperature difference between a temperature reference T* of a power inverter module and a semiconductor device temperature T of the power inverter module. The method further includes generating a maximum allowable torque T*based on the maximum allowable current I*and a maximum allowable flux Ψ*, and using the maximum allowable torque T*to limit the torque command T*in order to suppress the semiconductor device temperature T to below the temperature reference T*.