192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1990-09-10
1991-10-15
Bonck, Rodney H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 0096, B60K 4102
Patent
active
050566393
ABSTRACT:
A device for the control of an automatic motor vehicle clutch is arrayed between an engine and a geaar box and acts primarily as a start-up clutch. A control device receives an electric signal coming from an electronic control device and transforms it into a control quantity for an actuator which engages and disengages the clutch. The engagement of the clutch at start-up occurs with a basic clutch-in speed dependent upon the positioning of the gas pedal and initiated by this positioning and is determined as an electric signal by an electronic control device. For this purpose, a characteristic curve which was determined specifically for the engine is stored in the memory of the electronic control device so that in dependence on the displacement angle of the gas pedal the basic clutch-in speed can be determined very quickly and in a simple manner. It is possible to further improve the quality of the clutch-in process by means of correction factors which are multipliers for the basic clutch-in speed. The highest requirements of a clutch are satisfied when, shortly before reaching the point of synchronization, the clutch is displaced once more in direction of disengagement, whereby the moment of disengagement as well as the disengagement speed are likewise determined by characteristic curves.
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Petzold Rainer
Wiencek Norbert
Bonck Rodney H.
Dubno Herbert
Wilford Andrew
Zahnradfabrik Friedrichshafen AG
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