INTERFERENCE AVOIDING CONTROLLER FOR WORKING CONSTRUCTION MACHINE

摘要

PROBLEM TO BE SOLVED: To continuously carry out a work while avoiding interference of a bucket with an attachment when the attachment approaches a cab during the work. SOLUTION: An arm limit angleβLT is set on the basis of a real boom angleαact and a real offset angleγact input from a boom angle sensor 33 and an offset angle sensor 34. A real arm angleβact input from an arm angle sensor 35 is fed-back to the arm limit angle to obtain an angle deviationΔβ. A command is output to electromagnetic proportional pressure reducing values 24, 27 disposed in the driving circuit of a cylinder 12 for the arm on the basis of the angular deviation to automatically avoid the interference of the arm.