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:
Nov. 15, 1988
Filed:
Apr. 02, 1986
Applicant:
Inventor:
Yoshihiko Morimoto, Mitaka, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74868 ; 74877 ;
Abstract
A control system for an infinitely variable transmission has a transmission ratio control valve having a spool for controlling oil supplied to a cylinder of a drive pulley to change the transmission ratio. The deceleration rate of the motor vehicle contianing the system is detected to produce a deceleration signal. By controlling the oil pressure supplied to the transmission ratio control valve in accordance with engine operating conditions and the deceleration signal, the spool is shifted such that downshifting speed is increased with increasing deceleration.