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:
Nov. 13, 2012
Filed:
Jun. 14, 2010
Shawn A. Holland, Livonia, MI (US);
Ralph S. Walker, Livonia, MI (US);
George Herr, Canton, MI (US);
Jeffrey J. Tumavitch, Livonia, MI (US);
Bradley D. Riedle, Northville, MI (US);
Steven C. Meisner, Dexter, MI (US);
Hong Jiang, Canton, MI (US);
Matthew J. Shelton, Grosse Ile, MI (US);
Shawn A. Holland, Livonia, MI (US);
Ralph S. Walker, Livonia, MI (US);
George Herr, Canton, MI (US);
Jeffrey J. Tumavitch, Livonia, MI (US);
Bradley D. Riedle, Northville, MI (US);
Steven C. Meisner, Dexter, MI (US);
Hong Jiang, Canton, MI (US);
Matthew J. Shelton, Grosse Ile, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for controlling a power-off downshift in a powershift transmission includes disengaging the current gear, synchronizing engine speed and a speed of the target gear layshaft by increasing a torque capacity of the target gear clutch, disengaging the clutch, engaging the target gear, and reengaging the clutch.