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:
Jan. 20, 1987
Filed:
Dec. 07, 1983
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed is a gear shift controller for an automatic transmission with a gear shift, having a hydraulic torque converter; a gear change group, having a plurality of gears, each gear providing a different transmission ratio for the transmission of power from said hydraulic converter to the output of the transmission, each of said gears having a gear train; a one-way clutch interposed in at least one of said gear trains; a plurality of clutch means operatively connected with said gear trains for actuating each of said gear trains selectively; a gear change determination circuit operatively connected with said clutch means for controlling the operation of each of said clutch means according to a predetermined gear-shifting program; a coasting detection circuit operatively connected with said gear change determination circuit, for detecting a car in the coasting state; a gear shift limiting circuit, operatively connected with said gear change determination circuit, for actuating only said gear train in which said one-way clutch is interposed immediately regardless of the operation of said gear change determination circuit, when said coasting detection circuit has determined the car to be coasting; and an operation transfer control system for transferring the operation of the gear shift limiting circuit.