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:
Oct. 13, 1998
Filed:
Oct. 09, 1996
Applicant:
Inventors:
Kazuo Sasaki, Hiroshima, JP;
Minoru Kuriyama, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
477109 ; 477107 ; 477110 ;
Abstract
An automatic transmission control system, during a down shift, translates practical input speed to an transmission into a restrained input speed defined by a specific relationship which presents a difference between the practical and restrained input speeds greater when a changing rate of practical input speed is high as compared with when it is low, and forces an engine to continuously produce an output torque drop until the restrained input speed attains a specified speed level.