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:
Aug. 07, 2007
Filed:
Aug. 03, 2005
Duane Fredrick Meyer, Hudson, IA (US);
Joel Lee Mason, Cedar Falls, IA (US);
Daniel Avery Allen, Waterloo, IA (US);
Bradley Allen Merrill, Dike, IA (US);
Duane Fredrick Meyer, Hudson, IA (US);
Joel Lee Mason, Cedar Falls, IA (US);
Daniel Avery Allen, Waterloo, IA (US);
Bradley Allen Merrill, Dike, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A method is provided wherein when an auxiliary device is being powered by the PTO driveline the PTO clutch is periodically slowly ramped down in pressure until slippage is detected in the clutch. Slippage is determined by monitoring the shaft speed into the clutch as well as the shaft speed downstream of the clutch. By determining the commanded pressure where slippage occurred, the equivalent engine power that is going to the auxiliary function is calculated. With this information, the proportion of the engine load signal that is going to the auxiliary function versus the drive wheels is determined. After slip is detected in the PTO clutch, pressure is ramped back up in the clutch so as to minimize the amount of slippage.