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:
Mar. 26, 1991
Filed:
Oct. 19, 1988
Koji Sasajima, Saitama, JP;
Hideo Koyama, Tokyo, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of controlling a speed reduction ratio in a continuously variable speed transmission comprises detecting a vehicle speed when a vehicle is decelerated by utilizing an engine brake with an accelerator opening being essentially zero, determining a reference speed reduction ratio corresponding to the detected vehicle speed, detecting an actual vehicle speed change rate, detecting an allowable vehicle speed change rate, comparing the actual change rate with said allowable vehicle speed change rate, determining a corrected speed reduction ratio by adding a correction to the reference speed reduction ratio based on a difference between the actual vehicle speed change rate and the allowable vehicle speed change rate, and controlling the speed reduction ratio of the continuously variable speed transmission so as to coincide with the corrected speed reduction ratio.