Method of controlling clutches

Details Method of controlling clutches Method of controlling clutches

1991-01-24

1992-01-28

Bonck, Rodney H.

192 clutches and power-stop control

Transmission control and clutch control

Common control

192 0033, 192 83, 192109F, 3644241, B60K 4102, B60K 4122, B60K 4128

Patent

active

050836471

ABSTRACT:
In a power shift transmission system, two tables of values are established for modulating a clutch actuation, signal. When a clutch pedal is depressed below a limit position, both tables are accessed to obtain a pair of values, and the value which will result in the lower clutch pressure is used to modulate the actuation signal. One table is accessed in accordance with clutch pedal position and the other table is accessed in accordance with the selected gear speed ratio and engine speed. The arrangement prevents overheating of the clutch by the energy applied to it as a result of stalling the engine immediately after clutch inching.

REFERENCES:
patent: 3352392 (1967-11-01), Black et al.
patent: 4632234 (1986-12-01), Bardoll et al.
patent: 4799160 (1989-01-01), Arbeille et al.
patent: 4854433 (1989-08-01), Tellert
patent: 4874070 (1989-10-01), Nellums et al.
patent: 5002166 (1991-03-01), Leigh-Monstevens et al.

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