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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ATTORNEY / AGENT: (SPONSORED)

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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 SA75016 PARIS

International Classification(s)

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  • 1997 Application Filing Year
  • F16F Class
  • 294 Applications Filed
  • 144 Patents Issued To-Date
  • 48.98 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances1997199819992000200120020255075100

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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Patent Citation Ranking

  • 35 Citation Count
  • F16F Class
  • 93.54 % this patent is cited more than
  • 25 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges215865211321101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6071 - 800102030405060708090100110120130140150160170

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