Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Patent
1996-12-24
1998-06-30
Wright, Dirk
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
477 61, F16H 6106
Patent
active
057725578
ABSTRACT:
A control system for an automatic transmission, including a frictional engagement element, an adjusted oil pressure producing mechanism for adjusting an oil pressure supplied from an oil pressure source to produce an adjusted oil pressure, a hydraulic servo for applying/releasing the frictional engagement element on the basis of the adjusted oil pressure, an engine load detecting mechanism, a vehicle speed detecting mechanism, an up-shift deciding mechanism for determining whether an up-shift has been executed, and a pressure regulate signal generating mechanism for calculating the regulated target pressure of the adjusted oil pressure, when the up-shift is executed, to output a pressure regulate signal. The adjusted pressure signal producing mechanism corrects the regulated target pressure on the basis of the difference between the present vehicle speed and the vehicle speed at a shift point when the shift is executed under the present engine load.
REFERENCES:
patent: 4706522 (1987-11-01), Nitz
patent: 4949595 (1990-08-01), Shimanaka
patent: 4955259 (1990-09-01), Narita
patent: 5349885 (1994-09-01), Yoshimura et al.
Matsui Shinichi
Suzuki Kenji
Tasaka Masayuki
Yamada Yoshihiro
Yoneda Tatsuyuki
Aisin Aw Co. Ltd.
Wright Dirk
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