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:
Oct. 22, 2013
Filed:
Aug. 17, 2011
Karl Andrew Sime, Mason, MI (US);
Brian L. Spohn, Holly, MI (US);
Besim Demirovic, Troy, MI (US);
Ryan D. Martini, Wolverine Lake, MI (US);
Jean Marie Miller, Plymouth, MI (US);
Karl Andrew Sime, Mason, MI (US);
Brian L. Spohn, Holly, MI (US);
Besim Demirovic, Troy, MI (US);
Ryan D. Martini, Wolverine Lake, MI (US);
Jean Marie Miller, Plymouth, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of controlling a pump supplying a fluid to a transmission includes sensing a requested power and an excess power for a powertrain. The requested power substantially meets the needs of the powertrain, while the excess power is not part of the requested power. The method includes sensing a triggering condition in response to the ability to convert the excess power into heat in the transmission, and determining that an operating temperature of the transmission is below a maximum. The method also includes determining a calibrated baseline and a dissipation command for the pump. The calibrated baseline command is configured to supply the fluid based upon the requested power, and the dissipation command is configured to supply additional fluid and consume the excess power with the pump. The method operates the pump at a combined command, which is equal to the calibrated baseline command plus the dissipation command.