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:
Dec. 12, 1995
Filed:
Jul. 09, 1993
Jiro Kondo, Hiroshima, JP;
Masao Inoue, Hiroshima, JP;
Yoji Watanabe, Hiroshima, JP;
Takashi Suzuki, Hiroshima, JP;
Takayuki Sakai, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A control system for an automatic transmission includes a shift gear mechanism for shifting respective shift gear stages, a shift line map including upshift lines and downshift lines, and a device for detecting a shift timing at which an shift operation should be carried out based on an engine load on the shift line map and a possibility is estimated that a driving condition will return back to the previous shift gear stage. The system also includes an engine load detecting device for detecting a stable condition of the engine load, and a controller for controlling the shift gear mechanism based on the shift line map after the engine load detecting device detects the stable condition of the engine load at the shift timing detected by the shift timing detecting device.