Method of controlling transmission capacity of a direct-coupling

Details Method of controlling transmission capacity of a direct-coupling Method of controlling transmission capacity of a direct-coupling

1986-06-11

1987-10-20

Krizmanich, George H.

192 clutches and power-stop control

Transmission control and clutch control

Common control

192 331, 192 358, 74731, 361242, F16D 3108, B60K 4122

Patent

active

047008199

ABSTRACT:
A method of controlling a direct-coupling mechanism of a hydraulic torque converter of an automatic transmission for an automotive vehicle, wherein the transmission capacity of the direct-coupling mechanism is controlled such that the value of a first predetermined parameter indicative of an amount of relative slip between input and output members of the hydraulic torque converter which are mechanically engaged with each other by the direct-coupling mechanism lies within a predetermined reference range. The value of a second predetermined parameter indicative of one of said plurality operating modes for the automotive vehicle is detected. Determined in dependence on the detected value of the second predetermined parameter is either the predetermined reference range of the value of the first predetermined parameter or a rate at which the transmission capacity is controlled such that the value of said predetermined parameter changes toward the predetermined reference range of the first predetermined parameter.

REFERENCES:
patent: 4386687 (1983-07-01), Chevalier et al.
patent: 4535652 (1985-08-01), Nishikawa et al.
patent: 4577737 (1986-03-01), Niikura et al.
patent: 4582185 (1986-04-01), Grimes et al.

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