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:
Aug. 08, 2023
Filed:
Oct. 29, 2021
Ford Global Technologies, Llc, Dearborn, MI (US);
Jonathan Hair, Royal Oak, MI (US);
Jonathan Andrew Butcher, Farmington, MI (US);
Mohammad Sameer Khan, Windsor, CA;
Brendan F. Diamond, Grosse Pointe, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A vehicle includes an electric machine having a rotor and a stator, a resolver that measures a position of the rotor relative to the stator, and a controller. The controller, based on the position and a resolver offset, injects a first current having only a d-axis component into the electric machine, and responsive to detecting a first motion output of the electric machine being greater than a threshold, adjusts the resolver offset according to a magnitude and direction of the first motion output.