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. 20, 2025
Filed:
Apr. 01, 2020
Cummins Inc., Columbus, IN (US);
Akm Arafat, Blaine, MN (US);
Bradford K. O. Palmer, Ham Lake, MN (US);
S. Dakshina Murthy-Bellur, Plymouth, MN (US);
Minyu Cai, Roseville, MN (US);
Cummins Inc., Columbus, IN (US);
Abstract
A method for operating a motor control system to dynamically compensate for low-frequency and/or high-frequency torque ripple. Embodiments include receiving an input command, receiving drive feedback signals representative of drive currents in a motor, identifying harmonics in the drive feedback signals representative of motor torque ripple, producing torque ripple compensation signals based on the identified harmonics; and producing motor drive control signals based on the input command, the current feedback signals, the torque ripple compensation signals, and carrier signals with a certain phase shift.