Automatic transmission control device with stepped gears

Details Automatic transmission control device with stepped gears Automatic transmission control device with stepped gears

1993-05-19

1995-04-25

Wright, Dirk

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

475120, H16H 6106

Patent

active

054094267

ABSTRACT:
Automatic transmission control device with stepped gears comprising a torque converter (1) equipped with bridging means (6, 6'), a planetary gear train (2), several hydraulic receivers (E.sub.i, F.sub.i) assuring the switching of planetary gear train (2), and a hydraulic distributor (16, 17) delivering a line pressure PL, which makes it possible to feed selectively receivers (E.sub.i, F.sub.i) under the control of a computer, according to the data concerning the operation of the vehicle equipped with the transmission, characterized in that at least one switching element (8) is dimensioned to be able to slip in a controlled manner, particularly when converter (1) is bridged, in response to a momentary reduction of line pressure PL, and in that this slipping is servocontrolled, by line pressure PL, at set values depending on torque Cm and engine speed .omega.m.

REFERENCES:
patent: 4724939 (1988-02-01), Lockhart et al.
patent: 4757886 (1988-07-01), Brown et al.
patent: 4805750 (1989-02-01), Nitz
patent: 4880090 (1989-11-01), Ando
patent: 4890707 (1990-01-01), Suzuki
patent: 4957194 (1990-09-01), Sawa et al.
patent: 5029087 (1991-07-01), Cowan et al.
patent: 5033328 (1991-07-01), Shimanaka
patent: 5060769 (1991-10-01), Yoshimura et al.
patent: 5115897 (1992-05-01), Yoshimura et al.
patent: 5143191 (1992-09-01), Nobumoto et al.
patent: 5226513 (1993-07-01), Shibayama
patent: 5291979 (1994-03-01), Iizuka
patent: 5303616 (1994-04-01), Palansky et al.
patent: 5318159 (1994-06-01), Kashiwabara
patent: 5323320 (1994-06-01), Hathaway et al.
patent: 5325946 (1994-07-01), Kashiwabara et al.

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