Arrangement for controlling a frictional connection in a gear-ch

Details Arrangement for controlling a frictional connection in a gear-ch Arrangement for controlling a frictional connection in a gear-ch

1996-04-01

1998-08-04

Louis-Jacques, Jacques H.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

74335, 192 358, 701 58, 701 60, G06G 770

Patent

active

057909679

ABSTRACT:
In an automatic discrete step gearbox of a motor vehicle, the working pressure of a frictional connection (clutch or brake) to be engaged is set at the beginning of a gear-change by an electronic control unit in accordance with a specified required value variation and additionally as a function of correction values. The correction values are determined as a function of deviations between the required transmission torque value and the actual transmission torque value of the frictional connection.

REFERENCES:
patent: 4679145 (1987-07-01), Beeck et al.
patent: 5172602 (1992-12-01), Jurgens et al.
patent: 5240093 (1993-08-01), Wagner et al.
patent: 5349885 (1994-09-01), Yoshimura et al.
patent: 5407401 (1995-04-01), Bullmer et al.
patent: 5439427 (1995-08-01), Enokido et al.
patent: 5462499 (1995-10-01), Bullmer et al.
patent: 5505675 (1996-04-01), Kuriyama et al.

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