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:
Nov. 30, 2016
Steering Solutions Ip Holding Corporation, Saginaw, MI (US);
Prerit Pramod, Saginaw, MI (US);
Nayeem Mahmud, Saginaw, MI (US);
Rakesh Mitra, Saginaw, MI (US);
Dennis B. Skellenger, Saginaw, MI (US);
Julie A. Kleinau, Bay City, MI (US);
STEERING SOLUTIONS IP HOLDING CORPORATION, Saginaw, MI (US);
Abstract
An embodiment of a system for determining a sensor failure in a motor control system with at least three phase current measurements includes a magnitude computation module that determines a magnitude of a diagnostic voltage, the diagnostic voltage represented in a stator frame and based on a difference between an input voltage command and a final voltage command, and a phase evaluation module that determines a phase value of the diagnostic voltage based on the diagnostic voltage. The system also includes a sensor failure identification module that identifies a current sensor failure based on the phase value of the diagnostic voltage, the sensor failure represented by a failure signal, and a current calculation transition module that modifies a calculation scheme for determining a measurement of motor current based on the sensor failure.