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. 29, 2014
Filed:
Dec. 10, 2012
Ford Global Technologies, Llc, Dearborn, MI (US);
Alexander P. McDonnell, Dexter, MI (US);
Terry G. Feldpausch, Carleton, MI (US);
Bradley D. Riedle, Northville, MI (US);
Jeffrey A. Doering, Canton, MI (US);
Peter D. Kuechler, Canton, MI (US);
John E. Rollinger, Sterling Heights, MI (US);
David H. Schmitt, Livonia, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for controlling a vehicle driveline having a power source and a transmission clutch includes using a difference between two spaced locations in the subject vehicle driveline to determine driveline twist speed due to applied torque, using a product of driveline twist speed and a sampling interval to produce an estimated driveline twist from the sum of incremental changes in driveline twist that are between predetermined upper and lower magnitudes, producing, in response to a demanded wheel torque, a first signal that controls torque transmitted from the power source to the clutch during a lash crossing using the estimated driveline twist and the current driveline torque; and producing a second signal that controls clutch torque capacity such that clutch slip is produced during the lash crossing.