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. 05, 2023
Filed:
Dec. 10, 2021
Applicant:
Deere & Company, Moline, IL (US);
Inventors:
Yujiang Wu, Fargo, ND (US);
Christopher J. Tremel, West Fargo, ND (US);
Kent D. Wanner, Fargo, ND (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/04 (2016.01); H02P 23/04 (2006.01); B60L 53/20 (2019.01); H03H 17/02 (2006.01); H03H 17/00 (2006.01);
U.S. Cl.
CPC ...
H02P 23/04 (2013.01); B60L 53/20 (2019.02); H03H 17/02 (2013.01); H03H 2017/009 (2013.01); H03H 2017/0081 (2013.01);
Abstract
An inverter system for mitigating oscillation of an electric motor that drives a load comprises a torque command generation module for receiving a commanded torque from an operator of a vehicle. A torque damping module is configured to receive the commanded torque and generating a commanded compensating torque to dampen any mechanical oscillation or resonance of the electric motor based on the observed rotational speed of the motor. The torque damping module further comprises a digital filter of order greater than one, a gain adjuster and a limiter.