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:
Feb. 05, 1985
Filed:
Dec. 30, 1982
Mitsuru Nagaoka, Hiroshima, JP;
Mitsuo Yasuno, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A multiple clutch type transmission including a plurality of input shafts, a plurality of clutch devices for releasably and alternately connecting respective ones of the input shafts with an engine output shaft, each of said input shafts being associated with at least one set of transmission gears for connecting the input shaft associate therewith to an output element of the transmission, means for controlling the clutch devices so that selected one of the input shaft is connected through selected one of the clutch devices with the engine output shaft and through selected set of the transmission gears with the output element. There is disclosed a method of controlling the clutch devices in gear shift down operation, which comprises steps of disengaging the clutch device which has been in engagement for connecting the engine output shaft with one of the input shaft so that all of the clutch devices are maintained in disengaged conditions to allow engine speed to increase, and then engaging other clutch device to connect the other input shaft having the transmission gear set of lower gear stage.