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:
Sep. 06, 1994
Filed:
Jun. 29, 1993
Applicant:
Inventors:
Yoshikazu Tanaka, Atsugi, JP;
Masuo Kashiwabara, Atsugi, JP;
Assignee:
Unisia Jecs Corporation, Atsugi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
477131 ;
Abstract
A speed change controller for vehicle automatic transmission is constructed such that a speed change range is selected on the basis of vehicle speed and throttle valve opening, and a speed change position for either a low speed change step or a high speed change step is selected from the speed change range by recognizing/judging the vehicle driving conditions. As a result speed change timing can be appropriately controlled to suit to environmental changes, and speed change control catering equally to the individual needs of a large variety of drivers is possible.