Control method and system for preventing upwarp of heavy-load excavation of hydraulic excavator

The invention discloses a control method and system for preventing upwarp during heavy-load excavation of a hydraulic excavator, and the method comprises the steps: collecting the Y-direction angular acceleration of the displacement of a whole vehicle, and calculating a Y-direction change angle thro...

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Bibliographic Details
Main Authors NIU DONGDONG, WANG LU, ZHENG GUIFAN, BIAN QINGRONG, ZHAO YUDE, LYU CHUANWEI, WANG XUTONG, WANG QING, WANG DING
Format Patent
LanguageChinese
English
Published 19.12.2023
Subjects
DREDGING
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
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Summary:The invention discloses a control method and system for preventing upwarp during heavy-load excavation of a hydraulic excavator, and the method comprises the steps: collecting the Y-direction angular acceleration of the displacement of a whole vehicle, and calculating a Y-direction change angle through the Y-direction angular acceleration; the Y-direction change angle is compared with a set allowable jacking angle, and if the Y-direction change angle is larger than the set allowable jacking angle, an anti-jacking mode is started; a movable arm small cavity pressure value is obtained, a movable arm small cavity pressure judgment value is set according to the preset anti-jacking function opening percentage, and when the movable arm small cavity pressure value is higher than the movable arm small cavity pressure judgment value, an anti-jacking mode is started; and after entering the anti-jacking mode, the movable arm ascending electromagnetic valve is controlled, the crawler belt of the excavator falls back, and
Bibliography:Application Number: CN202311205805