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:
Sep. 06, 2011
Filed:
Sep. 10, 2007
William J. Wegeng, Avon, IN (US);
John D. Hylton, Plainfield, IN (US);
William J. Wegeng, Avon, IN (US);
John D. Hylton, Plainfield, IN (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An apparatus and method is provided for controlling torque in a powertrain having an engine and a transmission capable of operating a power take-off unit. The apparatus includes: a controller selectively operable to send a power take-off unit activation request to a transmission control module within the powertrain; a transmission control module capable of receiving the power take-off unit activation request; and wherein the apparatus is configured to prevent the torque of the engine from exceeding a maximum defined torque value when the power take-off unit is in operation. The apparatus includes an engine control module capable of receiving commands from the transmission control module through a data link connecting them.