INTERFERENCE AVOIDING CONTROLLER FOR WORKING CONSTRUCTION MACHINE

• Main Authors: MUROTA ISAO, MATOBA NOBUAKI, TANAKA MASAYUKI, FUJII SATOSHI
• Format: Patent
• Language: English
• Published: 18.04.2000
• Edition: 7
• Subjects: DREDGING; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING

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 angle βLT is set on the basis of a real boom angle αact and a real offset angle γact input from a boom angle sensor 33 and an offset angle sensor 34. A real arm angle βact input from an arm angle sensor 35 is fed-back to the arm limit angle to obtain an angle deviation Δβ. 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.