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:
Jul. 09, 2013
Filed:
Mar. 03, 2011
Daniel J. Berry, Macomb Township, MI (US);
Pankaj Mithal, Ann Arbor, MI (US);
Paul F. Turnbull, Canton, MI (US);
Peter J. Savagian, Bloomfield Hills, MI (US);
Chia-chou Yeh, Gardena, CA (US);
Steven E. Schulz, Torrance, CA (US);
Daniel J. Berry, Macomb Township, MI (US);
Pankaj Mithal, Ann Arbor, MI (US);
Paul F. Turnbull, Canton, MI (US);
Peter J. Savagian, Bloomfield Hills, MI (US);
Chia-Chou Yeh, Gardena, CA (US);
Steven E. Schulz, Torrance, CA (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A vehicle includes a power source, a motor, and a computing device. The power source provides electrical energy to the motor, and the motor generates rotational motion from the electrical energy received. The computing device is configured to estimate a temperature of the motor in real time based at least in part on a thermal model of the motor. The thermal model includes a plurality of nodes and at least one thermal resistance. Each node represents a region of the motor and each thermal resistance represents a heat transfer path between at least two of the nodes. A method includes solving one or more energy balance equations to determine a temperature change at each node and estimating the temperature of the motor in real time based at least in part on the temperature change at each node and at least one of the thermal resistances in the thermal model.