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. 26, 1991
Filed:
Jan. 05, 1990
Applicant:
Inventors:
Takahiro Kyohzuka, Hiroshima, JP;
Toshiyuki Kikuchi, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, Hiroshima-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74866 ;
Abstract
An automatic-transmission control system causes the automatic transmission to shift once to an intermediate gear speed and then shift to the final gear speed when a jump shifting is required. The automatic transmission control system causes the automatic transmission to directly upshift to the final gear speed without once shifting to an intermediate gear speed when a jump upshift is required while the engine load is not heavier than a predetermined value or the vehicle speed is not lower than a predetermined value.