Temperature compensation for magnetorheological fluid dampers

A temperature compensation method for controlling a damping force of a magnetorheological (MR) damper (10) is disclosed. First, a base operating current (IOS1) as a function of a desired force level of a damping force of the MR damper (10) is determined, and a temperature compensation as a function...

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Main Authors IYENGAR, VARDARAJAN R, HOYING, JOHN F, JUUHL, TIMOTHY J, SHAL, DAVID A, HEASTON, BRUCE ALLEN, LUKUC, MICHAEL RAY, JUNDI, KHALED M, DELLINGER, DARIN D, JONES, JESSE DEE
Format Patent
LanguageEnglish
French
German
Published 16.04.2003
Edition7
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MEANS FOR DAMPING VIBRATION
MECHANICAL ENGINEERING
SHOCK-ABSORBERS
SPRINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A temperature compensation method for controlling a damping force of a magnetorheological (MR) damper (10) is disclosed. First, a base operating current (IOS1) as a function of a desired force level of a damping force of the MR damper (10) is determined, and a temperature compensation as a function of an operating temperature of the MR damper (10) is determined. Finally, the temperature compensation is applied to the base operating current (IOS1) to generate a compensated operating current (IOS2) as a function of the desired force level of the damping force and the operating temperature of the MR damper (10). To refine the compensated operating current (IOS2), the temperature compensation can be determined as both a function of the operating temperature of the MR damper (10) and a relative velocity of the MR damper (10).
Bibliography:Application Number: EP20020078945