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:
Oct. 31, 2017
Filed:
Mar. 13, 2015
Applicant:
Steering Solutions Ip Holding Corporation, Saginaw, MI (US);
Inventors:
Siddharth Ballal, Saginaw, MI (US);
Timothy A. Klinesmith, Mayville, MI (US);
Dennis B. Skellenger, Saginaw, MI (US);
Assignee:
STEERING SOLUTIONS IP HOLDING CORPORATION, Saginaw, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 21/00 (2016.01); B62D 5/04 (2006.01); G01R 19/00 (2006.01); G01R 31/34 (2006.01); H02P 21/14 (2016.01); H02P 21/22 (2016.01); H02P 21/18 (2016.01); H02P 21/20 (2016.01);
U.S. Cl.
CPC ...
B62D 5/0463 (2013.01); B62D 5/0487 (2013.01); G01R 19/0092 (2013.01); G01R 31/343 (2013.01); H02P 21/14 (2013.01); H02P 21/18 (2016.02); H02P 21/20 (2016.02); H02P 21/22 (2016.02);
Abstract
A method of controlling a motor of a power steering system is provided. The method generates a direct-axis voltage command and a quadrature-axis voltage command based on a current measurement signal received from the motor. The method transforms the direct-axis voltage command and the quadrature-axis voltage command into an alpha voltage command and a beta voltage command. The method determines an offset error in the phase current measurement based on the alpha and beta voltage commands.