Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Patent
1994-09-27
1996-04-09
Bonck, Rodney H.
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
477143, 477158, 475122, F16H 6126
Patent
active
055056733
ABSTRACT:
A control system for an automatic transmission, includes a first hydraulic servo adapted to be fed with oil for effecting a shift to a target gear stage; a second hydraulic servo adapted to be fed with the oil for effecting a shift to the target gear stage; a limit oil feed circuit formed through an oil limit flow limiting device; a quick oil feed circuit bypassing the oil flow limiting device; and an oil passage switch for switching and connecting the limit oil feed circuit and the quick oil feed circuit to the first hydraulic servo and the second hydraulic servo. The oil passage switch feeds oil from the quick oil feed circuit to the first hydraulic servo and the second hydraulic servo, when the engine load is high, and feeds oil from the limit oil feed circuit to at least the first hydraulic servo when the engine load is low.
REFERENCES:
patent: 3707891 (1973-01-01), Asano et al.
patent: 4539869 (1985-09-01), Suga et al.
patent: 5088357 (1991-01-01), Kamada et al.
patent: 5368531 (1994-11-01), Ando et al.
patent: 5393279 (1995-02-01), Bota et al.
patent: 5417627 (1995-05-01), Iizuka
Patent Abstracts of Japan vol. 8, No. 120 (M-300) 6 Jun. 1984 & JP-A-59 026 660.
Ando Masahiko
Hayabuchi Masahiro
Kano Toshihiro
Tsukamoto Kazumasa
Aisin Aw Co. Ltd.
Bonck Rodney H.
Kwon Peter
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