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. 10, 2012
Filed:
Feb. 25, 2009
Tomoko Oue, Yokohama, JP;
Morimasa Yamawaki, Yokohama, JP;
Tomoko Oue, Yokohama, JP;
Morimasa Yamawaki, Yokohama, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
An engaging-force control apparatus for a friction-engagement element controls a slip rotational speed between an input-side rotational speed and an output-side rotational speed of the friction-engagement element by increasing or decreasing an engaging force of the friction-engagement element. The engaging-force control apparatus includes an engaging-force feedback control section configured to control the engaging force of the friction-engagement element to bring the slip rotational speed of the friction-engagement element closer to 0 by way of feedback control; and an engaging-force restricting section configured to restrict the engaging force of the friction-engagement element to prevent the engaging force from exceeding a minimum engaging-force value necessary to maintain the slip rotational speed at 0.