Semi-active suspension system with control circuit having a direct control loop including an inverse model of the damper

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United States of America Patent

PATENT NO 6112866
SERIAL NO

08889594

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Abstract

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The present invention relates to a semi-active damper controlled by a control circuit including a direct control loop made up of an inverse model of the damper. The inverse model of the damper determines an ideal value for an electrical current i.sub.th for controlling a compression controlled-restriction valve and an expansion controlled-restriction valve on the basis of a measured value for a relative speed y between the two ends of the damper and on the basis of a force reference value Fc. The semi-active damper of the invention is applicable as a transverse secondary suspension for a passenger rail vehicle.

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Patent Owner(s)

Patent OwnerAddress
GEC ALSTHOM TRANSPORT SA75116 PARIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boichot, Philippe Quetigny, FR 5 66
Kirat, Regis Le Creusot, FR 4 64

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