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:
Dec. 03, 2013
Filed:
Jun. 17, 2011
Anthony H. Heap, Ann Arbor, MI (US);
Lawrence A. Kaminsky, White Lake, MI (US);
Sean W. Mcgrogan, Ann Arbor, MI (US);
Lisa M. Talarico, Milford, MI (US);
Anthony H. Heap, Ann Arbor, MI (US);
Lawrence A. Kaminsky, White Lake, MI (US);
Sean W. McGrogan, Ann Arbor, MI (US);
Lisa M. Talarico, Milford, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method to execute a shift in a powertrain including a plurality of torque generative devices rotatably connected through a first clutch includes operating the powertrain in a continuously variable operating range state, and monitoring a command to execute the shift including monitoring a target speed for a first torque generative device, and monitoring a command to disengage the first clutch. The first clutch is shifted from an engaged state to a disengaged state, including operating a torque phase of the first clutch wherein the first clutch is transitioned from the engaged state to the disengaged state, and simultaneous with the torque phase, operating an inertia speed phase of the first clutch wherein a speed of the first torque generative device is transitioned from an initial speed to the target speed.