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. 31, 2016
Filed:
Jan. 31, 2013
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Daniel J. Berry, Macomb Township, MI (US);
Paul F. Turnbull, Canton, MI (US);
Chia-Chou Yeh, Gardena, CA (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 15/02 (2006.01); H02P 31/00 (2006.01); H02P 29/00 (2016.01);
U.S. Cl.
CPC ...
H02P 31/00 (2013.01); H02P 29/0044 (2013.01); F04B 2205/06 (2013.01); F04B 2205/10 (2013.01); F04B 2205/11 (2013.01);
Abstract
An electric motor powers a fluidic pump fluidly connected to a hydraulic circuit. Operating the electric motor includes determining a heat transfer coefficient for the electric motor based upon a temperature of hydraulic fluid in the hydraulic circuit. A temperature of the electric motor is determined based upon the heat transfer coefficient. Operation of the electric motor is controlled based upon the temperature of the electric motor.