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.

Date of Patent:
Oct. 16, 2018

Filed:

May. 23, 2016
Applicant:

Steering Solutions Ip Holding Corporation, Saginaw, MI (US);

Inventors:

Prerit Pramod, Saginaw, MI (US);

Julie A. Kleinau, Bay City, MI (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 21/24 (2016.01); H02P 21/00 (2016.01); H02P 29/024 (2016.01); B62D 5/04 (2006.01);
U.S. Cl.
CPC ...
H02P 21/0003 (2013.01); B62D 5/046 (2013.01); H02P 29/0241 (2016.02);
Abstract

A system for preventing controller windup in an electric motor includes a limiting module that determines a limited voltage command in response to a commanded voltage exceeding an available voltage of a motor power source, the limited voltage command is applied to an electric motor, a saturation parameter module that determines a saturation parameter based on the limited voltage command, the saturation parameter indicates a magnitude of the commanded voltage exceeding the available voltage, a non-linear processing module that processes the saturation parameter to generate a processed saturation parameter, and a reference current modifier module that generates a modified current command based on the processed saturation parameter, the modified current command is applied to the control system to improve the current command tracking.


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