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:
Jan. 02, 2024
Filed:
Aug. 20, 2020
Applicant:
Nidec Corporation, Kyoto, JP;
Inventors:
Tomohiro Fukumura, Kyoto, JP;
Linfeng Lan, Kyoto, JP;
Assignee:
NIDEC CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/04 (2006.01); H02P 5/00 (2016.01); H02P 7/00 (2016.01); H02P 23/14 (2006.01); H02P 29/66 (2016.01); B60L 15/20 (2006.01); B62D 5/04 (2006.01);
U.S. Cl.
CPC ...
H02P 23/14 (2013.01); H02P 29/66 (2016.02); B60L 15/20 (2013.01); B62D 5/046 (2013.01);
Abstract
A first torque estimator determines a first torque estimation value according to a cross product method, and a second torque estimator determines a second torque estimation value according to an energy method. A torque weight adjuster adjusts, using a weighting coefficient calculated in accordance with a predetermined condition, weightings respectively applied to these two types of torque estimation values, and outputs a torque estimation value.