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:
May. 15, 2018
Filed:
Apr. 20, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Dwarakanath V. Simili, Oakland Township, MI (US);
Anno Yoo, Rochester Hills, MI (US);
Yo Chan Son, Rochester Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An electric machine assembly includes an electric machine having a stator configured to have a stator current and a controller configured to receive a torque command (T). The controller stores a modulation flag (F) and a six step active flag (F), each having a respective status. The controller has a processor and tangible, non-transitory memory on which is recorded instructions for executing a method of controlling a six step pulse width modulation operation in the assembly. The controller is programmed to determine the respective status of a six step active flag (F) based at least partially on the torque command (T) and the respective status of the modulation flag (F). The controller is configured to control at least one operating parameter of the electric machine based at least partially on the respective status of the six step active flag (F).