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:
Feb. 02, 2021
Filed:
Jul. 14, 2016
Continental Automotive France, Toulouse, FR;
Continental Automotive Gmbh, Hannover, DE;
Michel Parette, Fonsorbes, FR;
CONTINENTAL AUTOMOTIVE FRANCE, Toulouse, FR;
CONTINENTAL AUTOMOTIVE GMBH, Hannover, DE;
Abstract
Disclosed is a method for detecting a fault in an electric motor of a power-assisted steering system of an automobile vehicle. The method notably includes a step for: determination of a residual direct sinusoidal voltage and of a residual quadrature sinusoidal voltage based on the measured direct sinusoidal current, on the estimated direct sinusoidal current, on the measured quadrature sinusoidal current and on the estimated quadrature sinusoidal current; and detection of a fault when the difference between the value of the residual direct sinusoidal voltage and its moving average is greater than a first threshold and/or when the difference between the value of the quadrature sinusoidal voltage and its moving average is greater than a second threshold.