Global Patent Index - EP 0900887 A1

EP 0900887 A1 19990310 - CONTROLLER OF CONSTRUCTION MACHINE

Title (en)

CONTROLLER OF CONSTRUCTION MACHINE

Title (de)

STEUERVORRICHTUNG EINER BAUMASCHINE

Title (fr)

ORGANE DE COMMANDE D'ENGIN DE CONSTRUCTION

Publication

EP 0900887 A1 19990310 (EN)

Application

EP 97913472 A 19971128

Priority

  • JP 9704361 W 19971128
  • JP 32316196 A 19961203

Abstract (en)

The present invention relates to a control apparatus for a construction machine such as a hydraulic excavator for excavating the ground, and includes angle detection means (20 to 22) for detecting a posture of a joint type arm mechanism in angle information, conversion means (26) for converting the detected angle information into corresponding expansion/contraction displacement information of cylinder type actuators (120 to 122), and controlling means (1) for controlling the actuators (120 to 122) based on the obtained expansion/contraction information so that the actuators (120 to 122) may perform predetermined expansion/contraction displacements, whereby the position and the posture of a working member (400) can be controlled accurately and stably while suppressing the cost low. <IMAGE>

IPC 1-7

E02F 3/43

IPC 8 full level

E02F 3/43 (2006.01); E02F 9/26 (2006.01); E02F 9/22 (2006.01)

CPC (source: EP KR)

E02F 3/437 (2013.01 - EP KR); E02F 9/2285 (2013.01 - EP KR); E02F 9/2292 (2013.01 - EP KR); E02F 9/2296 (2013.01 - EP KR); E02F 9/26 (2013.01 - EP); E02F 9/26 (2013.01 - KR)

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

WO 9824985 A1 19980611; CA 2242755 A1 19980611; CN 1210570 A 19990310; EP 0900887 A1 19990310; EP 0900887 A4 20000524; JP H10159123 A 19980616; KR 19990081852 A 19991115

DOCDB simple family (application)

JP 9704361 W 19971128; CA 2242755 A 19971128; CN 97191997 A 19971128; EP 97913472 A 19971128; JP 32316196 A 19961203; KR 19980705563 A 19980721