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:
May. 21, 2019
Filed:
Feb. 28, 2017
Applicant:
Dana Automotive Systems Group, Llc, Maumee, OH (US);
Inventor:
Johannes van Ginkel, Melden, BE;
Assignee:
Dana Automotive Systems Group, LLC, Maumee, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 11/215 (2016.01); G01R 1/00 (2006.01); H02P 6/17 (2016.01);
U.S. Cl.
CPC ...
H02K 11/215 (2016.01); G01R 1/00 (2013.01); H02P 6/17 (2016.02);
Abstract
A method of estimating electric motor speed. The method determines whether a sequential cycle of the electric motor has occurred. The method calculates a correction factor for each of the Hall states. Where a sequential cycle of the electric motor has occurred, the method also calculates an update quality factor for the correction factors of the sequential cycle. The method updates the correction factors utilizing the update quality factor. Utilizing the updated correction factors, the method updates the electric motor speed signal.