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:
Dec. 04, 2018
Filed:
Mar. 01, 2017
Ford Global Technologies, Llc, Dearborn, MI (US);
William David Treharne, Ypsilanti, MI (US);
Jonathan Andrew Butcher, Farmington, MI (US);
Xuemei Sun, Canton, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method, implemented in one or more controllers in a vehicle, includes, in a presence of a propulsive demand of the vehicle that is driven by an engine and an electric machine, holding electric machine current at a predetermined magnitude and sweeping an angle, defined between a reference current and a reference Iq component, through a predetermined range. The method further includes operating the electric machine thereafter according to a resolver offset derived from a value of the angle corresponding to an Iq component crossing zero.