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. 09, 1989
Filed:
Oct. 06, 1986
Masaki Nakano, Kawasaki, JP;
Haruyoshi Kumura, Kamakura, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A control system for a continuously variable transmission for a vehicle, includes a hydraulically operable driver pulley, a follower pulley, a transmission V-belt tensioned between the driver and follower pulleys, and means, including a shift actuator and a shift control valve, for hydraulically controlling a reduction ratio between the driver and follower pulleys. In order to provide inproved shift response of the transmission upon depressing an accelerator pedal after a quick brake state of a vehicle where the vehicle wheels are locked, a position of a movable conical disk of the driver pulley which it would assume after initiation of the quick brake state is determined by arithmetic operation, and a shift actuator is driven toward a position thereof corresponding to the position assumed by the driver pulley so that the V-belt is tensioned between the driver and follower pulleys and conditioned to be ready for torque transmission.