Title:
建設機械
Document Type and Number:
Japanese Patent JP6707047
Kind Code:
B2
Abstract:
A hydraulic excavator 100 includes: a multijoint type front implement 1 that is configured by coupling a plurality of driven members 4 to 6 including a bucket 6; inertial measurement units 14 to 16 that detect posture information about the plurality of driven members 4 to 6; and a calibration value computing section 153 that computes calibration parameters used in calibration of detection results of the inertial measurement units 14 to 16; and a work position computing section 154 that computes a relative position of the bucket 6 to the machine body on the basis of the detection results of the inertial measurement units 14 to 16 and the computation result of the calibration value computing section 153, and the calibration value computing section 153 computes the calibration parameters on the basis of the detection results of the inertial measurement units 14 to 16 in a plurality of postures of the front implement 1 in which a reference point set on any of the plurality of driven members 4 to 6 in advance matches a reference position, which differ in a posture of at least one of the plurality of driven members 4 to 6, and the number of which corresponds to the number of the driven members 4 to 6. Thus, highly precisely computation of the posture of the work implement is possible with a simpler configuration.
Inventors:
Ishihara Shinji
Shuichi Moriki
Manabu Edamura
Hiroshi Sakamoto
Yasuki Tsuriga
Yuichiro Morita
Shuichi Moriki
Manabu Edamura
Hiroshi Sakamoto
Yasuki Tsuriga
Yuichiro Morita
Application Number:
JP2017052973A
Publication Date:
June 10, 2020
Filing Date:
March 17, 2017
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
E02F3/43; E02F9/20
Domestic Patent References:
| JP10115517A | ||||
| JP7150596A | ||||
| JP370001A | ||||
| JP2005121437A | ||||
| JP2012233353A |
Foreign References:
| WO2017072877A1 | ||||
| WO2015173920A1 | ||||
| US20090228169 |
Attorney, Agent or Firm:
Kaichi International Patent Office