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. 18, 2000
Filed:
Nov. 16, 1998
Roland Mathis, Ribeauville, FR;
Delphi France Automotive Systems, La Garenne-Colombes, FR;
Abstract
An automatic transmission comprising a housing (12); a planetary gear train (14) mounted within the housing; an input drive shaft (16) for providing input drive to the planetary gear train; an output drive shaft (18) connected with an output drive from the planetary gear train; a first clutch (C1) connected between the input drive shaft and a first drive input (22) to the planetary gear train; a second clutch (C2) connected between a first reaction input (28) to the planetary gear train and the housing; a third clutch (C3) connected between a second reaction input (30) to the planetary gear train and the housing; a fourth clutch (C4) connected between a third reaction input (32) to the planetary gear train and the housing; and a fifth clutch (C5) connected between a second drive input (24) to the planetary gear train and the input drive shaft; wherein for first forward gear ratio the first and second clutches are engaged; for second forward gear ratio the first, second and third clutches are engaged; for third forward gear ratio the first, second, third and fourth clutches are engaged; and for fourth forward gear ratio the first, second, third, fourth and fifth clutches are engaged. Allows gear shift by the operation of a single clutch.