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. 27, 2025
Filed:
May. 08, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
William Robert Jensen, Walled Lake, MI (US);
Mazharul Chowdhury, Canton, MI (US);
Suresh Gopalakrishnan, Troy, MI (US);
Lei Hao, Troy, MI (US);
Peng Peng, Columbus, OH (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
Techniques are provided for torque ripple mitigation. In one embodiment, the techniques involve determining a first torque ripple at a torque output of a target electrical machine, upon determining that the first torque ripple exceeds a threshold, reproducing the torque output based on a pair of gamma control sets, determining a second torque ripple at the reproduced torque output, upon determining that the second torque ripple falls below the threshold, generating qualified gamma controls based on the gamma control sets, and supplying the qualified gamma controls to the target electrical machine.