Brakes – Internal-resistance motion retarder – Relative speed of thrust member or fluid flow
Patent
1997-06-30
1999-01-26
Young, Lee W.
Brakes
Internal-resistance motion retarder
Relative speed of thrust member or fluid flow
267136, 280707, F16F 949
Patent
active
058628940
ABSTRACT:
A semi-active damper is controlled by a control circuit which includes a direct main feedback loop, as well as a secondary force feedback loop. The direct main feedback loop includes an inverse model of the damper to be controlled. In the inverse model, an equivalent speed y.sub.e is determined, for use in controlling the damper, based on the measured relative speed y of the ends of the damper. The equivalent speed y.sub.e is used for the purpose of compensating for the fact that a hydraulic fluid used in the damper is not an absolutely incompressible fluid.
Boichot Philippe
Kirat Regis
GEC Alsthom Transport SA
Young Lee W.
LandOfFree
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