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. 12, 2023
Filed:
Nov. 26, 2019
Applicants:
Trw Limited, Solihull, GB;
Trw Automotive Gmbh, Alfdorf, DE;
Inventors:
Assignees:
TRW AUTOMOTIVE GMBH, Alfdorf, DE;
TRW LIMITED, Solihull, GB;
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/00 (2016.01); G06F 30/23 (2020.01); G06F 111/10 (2020.01);
U.S. Cl.
CPC ...
H02P 21/0017 (2013.01); G06F 30/23 (2020.01); H02P 21/0025 (2013.01); G06F 2111/10 (2020.01);
Abstract
A method suitable for characterizing a motor, for instance a permanent magnet synchronous motor, includes obtaining a plurality of winding flux linkage values or terminal voltages of the motor, each corresponding to a different combination of phase current magnitude and phase advance. The resultant flux-linkage values or terminal voltages are transformed into the rotor dq reference frame. The flux linkage model is fitted to the one or more dq-axis flux-linkage values or terminal voltages and their linked phase current magnitude and phase advance using a process of parametric optimisation.