Control device and method for a pressure actuatable bridging cou

Details Control device and method for a pressure actuatable bridging cou Control device and method for a pressure actuatable bridging cou

1990-05-01

1991-10-08

Lorence, Richard

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 329, F16H 4502

Patent

active

050545906

ABSTRACT:
A hydrodynamic torque converter has a bridging coupling. An axial piston arranged in the converter housing is subjected to a working pressure for engagement of the bridging coupling and to an internal housing pressure acting in the opposite direction. A sensor operative relative to a reference control pressure controls working pressure. To obtain an analogous dependence on the internal housing pressure otherwise measurable only with special measures, the reference control pressure is set by means of a pressure-regulating valve working as a function both of the inflow pressure and of the flow-off pressure of the hydrodynamic working circuit.

REFERENCES:
patent: 2824632 (1958-02-01), Lucia et al.
patent: 2965202 (1960-12-01), Christenson
patent: 3096666 (1963-07-01), Christenson et al.
patent: 3241399 (1966-03-01), Fisher et al.
patent: 3330170 (1967-07-01), Rains et al.
patent: 3691872 (1972-09-01), Schaefer et al.
patent: 4828084 (1989-05-01), Hasegawa et al.

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