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Title:
CONTINUOUSLY VARIABLE TRANSMISSION, DRIVE DEVICE, AND METHOD OF CONTROLLING THE DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/121190
Kind Code:
A1
Abstract:
A continuously variable transmission, a drive device, and a method of controlling the drive device. The continuously variable transmission comprises a belt type continuously variable transmission (A) and a forward/backward movement changeover device (4) having a planetary gear mechanism (40), a reversing brake (50), and a direct-coupled clutch (60) to perform forward/backward movement changeover operation by selectively coupling the reversing brake to the direct-coupled clutch. The operating piston (62) of the direct-coupled clutch is disposed in a stationary cylinder (8) fixed to a transmission case, and the axial pressure of the operating piston is transmitted to the transmission case (5a) through a bearing (16) rotatably supporting the drive side pulley shaft (10) of the continuously variable transmission. Also, the transmission comprises a hydraulic pressure regulating means (SLU72) controlling a supply pressure to the direct-coupled clutch (60) to such a least hydraulic pressure that does not cause slippage on the direct-coupled clutch according to a variation in input torque.

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Inventors:
SHIMAMOTO MASAO (JP)
KUBO RYOUICHI (JP)
Application Number:
PCT/JP2006/309773
Publication Date:
November 16, 2006
Filing Date:
May 10, 2006
Export Citation:
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Assignee:
DAIHATSU MOTOR CO LTD (JP)
SHIMAMOTO MASAO (JP)
KUBO RYOUICHI (JP)
International Classes:
F16H61/00; F16H37/02; F16H57/021; F16H57/035; F16H59/14
Foreign References:
JP2004144138A2004-05-20
JPS5533971A1980-03-10
JP2002181175A2002-06-26
JPS60175828A1985-09-10
JP2000304127A2000-11-02
EP1413804A22004-04-28
JPS5533971A1980-03-10
Other References:
See also references of EP 1881238A4
Attorney, Agent or Firm:
Sugahara, Ichiro (Edelweiss Yurigaoka 4-15-1, Takaishi, Asao-k, Kawasaki-shi Kanagawa 03, JP)
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