System with motion sensors for damping mass-induced vibration in machines

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United States of America Patent

PATENT NO 11536298
APP PUB NO 20220252090A1
SERIAL NO

17562449

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system for damping mass-induced vibrations in a machine having a long boom or elongate member, the movement of which causes mass-induced vibration in such boom or elongate member. The system comprises at least one motion sensor operable to measure movement of such boom or elongate member resulting from mass-induced vibration, and a processing unit operable to control a first control valve spool in a pressure control mode and a second control valve spool in a flow control mode in order to adjust the hydraulic fluid flow to the load holding chamber of an actuator attached to the boom or elongate member to dampen the mass-induced vibration. The system further comprises a control manifold fluidically interposed between the actuator and control valve spools that causes the first and second control valve spools to operate, respectively, in pressure and flow control modes.

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Patent Owner(s)

Patent OwnerAddress
DANFOSS A/SNORDBORGVEJ 81 NORDBORG DK-6430

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yuan, QingHui Edina, US 35 254

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