Automatic trajectory control device for hydraulic construction machinery

Abstract

Abstract PROBLEM TO BE SOLVED: To provide an automatic locus controller capable of being smoothly transferred to the automatic control of a desired operation locus by the nomal operation of a control lever and having extremely excelllent operationability. SOLUTION: The coordinates (x, y) of the cutting edge C of a bucket 18 are arithmetically operated at all times on the basis of the information of the rotational angles of a boom 16, an arm 17 and the bucket 18 detected by each rotational-angle sensor 12-14 for a working machine in a controller 11. When the coordinates (x, y) of the cutting edge C are placed in a specified leveling- operation start-place region and pilot pressure Pb on the boom and arm-draw pilot pressure Pa detected by the pressure sensors 6, 7 and these time changes are decided to be brought to the state of initial-motion operation at the time of leveling-operation start, initial-motion transfer operation automatic locus control for smooth transfer to horizontal-leveling operation automatic locus control is conducted.

Inventors

• 👤 Yusuke Kajita
• 👤 勇輔 梶田

Bibliographic Details