Magnetorheological fluid brake and force-feedback system for...

Land vehicles – Wheeled – Running gear

Reexamination Certificate

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Details

C280S090000, C180S402000, C188S267100, C188S267200

Reexamination Certificate

active

06910699

ABSTRACT:
A magnetorheological fluid brake utilizing a positive displacement fluid pump adapted to pump a magnetorheological fluid through a viscosity regulator. The viscosity regulator is adapted to controllably vary the viscosity of the magnetorheological fluid, altering the pumping restriction against the fluid pump, resulting in variable resistance to pump shaft rotation relative to the pump housing. An electronic steering system for a work vehicle utilizing the illustrated magnetorheological brake as a resistance device to provide tactile feedback as a function of steering shaft rotational position.

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Technical Bulletin, LORD Materials Division, 2 pages.

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