Interrelated power delivery controls – including engine control – Clutch control – With fluid drive
Patent
1993-10-12
1995-10-24
Wright, Dirk
Interrelated power delivery controls, including engine control
Clutch control
With fluid drive
477174, 477139, F16H 6114, F16H 5954
Patent
active
054605849
ABSTRACT:
A hydraulically-actuated multi-step transmission is adapted to prevent the occurrence of engagement shocks of a direct-coupled or lock-up clutch associated with a torque converter. Downshifting is carried out once with the direct-coupled clutch (8) engaged when the vehicle is slowed toward a stop. This is followed by a further downshift with the accelerator released and the direct-coupled clutch disengaged.
REFERENCES:
patent: 4027554 (1977-06-01), Ito et al.
patent: 4438665 (1984-03-01), Schmidt
patent: 4495576 (1985-01-01), Ito
Kusaka Kohei
Ohkura Yasunori
Kabushiki Kaisha Komatsu Seisakusho
Kananen Ronald P.
Ta Khoi O.
Wright Dirk
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