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:
May. 06, 1997
Filed:
Jul. 17, 1995
Katsumi Kono, Toyota, JP;
Shinya Nakamura, Owariasahi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A slip control apparatus for a lock-up clutch in a power transmitting device of a motor vehicle equipped with a fuel-cut device for cutting a fuel supply to an engine when the engine speed is higher than a predetermined value, the apparatus including (a) a slip control device for controlling the lock-up clutch such that the actual slip speed coincides with a target slip speed, (b) a detector for detecting deceleration following acceleration of the vehicle, and (c) a timing control device for commanding the slip control device to initiate a slip control operation upon detection of the vehicle deceleration, and inhibiting the fuel-cut device from initiating a fuel-cut operation for a predetermined delay time after the initiation of the slip control operation. For controlling the lock-up clutch, the slip control means produces a slip control output determined on the basis of a feedback control value and a feed-forward control value. The apparatus may include a device for zeroing or reducing the feedback control value after the fuel-cut operation is initiated.