Apparatus for controlling lock-up clutch in automatic transmissi

Details Apparatus for controlling lock-up clutch in automatic transmissi Apparatus for controlling lock-up clutch in automatic transmissi

1986-01-21

1989-08-22

Braun, Leslie

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74740, 74733, 192 331, 180247, B60K 4118, F16H 3700, F16H 4700

Patent

active

048585009

ABSTRACT:
A transmission control device according to the present invention comprises a main transmission having a torque converting device provided with a direct clutch for effecting engagement and disengagement of the input member with output member of a torque converting portion; a sub transmission having a speed change mechanism; a drive-mode detecting means for detecting the drive mode of the speed change mechanism of the sub transmission; and a controller for controlling the lock-up characteristics of the direct clutch by means of the output of the drive mode detecting means.
The transmission control device is capable of setting the lock-up characteristics of the direct clutch in accordance with the speed mode of the sub transmission by effecting a change-over of the lock-up characteristics of the direct clutch of the torque converting device on the basis of the output of the drive-mode detecting means for detecting the speed mode of the sub transmission, so that it is possible to optimize the power performance, operating performance, and fuel consumption in accordance with the speed mode of the sub transmission.

REFERENCES:
patent: 4388843 (1983-06-01), Teeter
patent: 4411174 (1983-10-01), Yokoi et al.
patent: 4444073 (1984-04-01), Moroto et al.
patent: 4466502 (1984-08-01), Sakai
patent: 4484654 (1984-11-01), Hayakawa
patent: 4503927 (1985-03-01), Hayakawa et al.
patent: 4526255 (1985-07-01), Hennessey et al.
patent: 4548303 (1985-10-01), Beewer et al.
patent: 4552036 (1985-11-01), Takamo et al.
patent: 4561325 (1985-12-01), Jester
patent: 4582159 (1986-04-01), Suzuki
patent: 4586583 (1986-05-01), Yamakawa et al.
patent: 4592442 (1986-06-01), Wilson et al.

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