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:
Jul. 02, 2019
Filed:
Nov. 06, 2017
Steering Solutions Ip Holding Corporation, Saginaw, MI (US);
Prerit Pramod, Saginaw, MI (US);
Varsha Govindu, Saginaw, MI (US);
STEERING SOLUTIONS IP HOLDING CORPORATION, Saginaw, MI (US);
Abstract
Technical solutions are described for determining a sensor failure in a motor control system with at least three phase current measurements. An example system includes a current controller to generate an input voltage command for a motor using feedforward control. The system further includes a failed sensor identification module that, in response to the current controller operating using the feedforward control, determines that a current offset error is indicative of a failure of a current sensor, the current offset error determined based on a magnitude and a phase of a diagnostic current. Further, the failed sensor identification module identifies the current sensor experiencing the failure based on a phase value of the diagnostic current in response to the failure.