METHOD FOR CONTROLLING VIBRATION OF BOOM, DEVICE, AND ENGINEERING MACHINERY

WIPO Patent Application WO/2021/142826

A1

A method for controlling vibration of a boom (1), a device, engineering machinery, and a computer readable storage medium. The method for controlling vibration of a boom comprises: acquiring a first input signal of a handle; performing input shaping on the first input signal, and obtaining a second input signal, the second input signal being used to limit a residual vibration amplitude ratio of a boom to be no greater than a residual vibration amplitude ratio threshold; determining, according to the second input signal and a maximum flow rate of a hydraulic actuator used to drive actuation of the boom, a flow rate demand signal of the hydraulic actuator; determining, according to the flow rate demand signal and a flow rate compensation function, an input voltage signal of a flow rate control valve connected to the hydraulic actuator, wherein the flow rate compensation function is an inverse function of a flow rate characteristic curve function of the flow rate control valve; and controlling actuation of the flow rate control valve according to the input voltage signal.

XU LEI (CN)
ZHANG GUOLIANG (DE)
ZHANG YONG (CN)
XU XIAODONG (CN)

PCT/CN2020/072971

July 22, 2021

January 19, 2020

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XUZHOU CONSTRUCTION MACHINERY GROUP CO LTD (CN)
XCMG FIRE FIGHTING SAFETY EQUIP CO LTD (CN)

F16F15/00

CN103629293A	2014-03-12
CN1141680A	1997-01-29
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US20040055455A1	2004-03-25
CN102797787A	2012-11-28
US6328173B1	2001-12-11
GB2445165A	2008-07-02
CN106661870A	2017-05-10

CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)

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