Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/181128
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a work machine that is able to set a target trajectory and a target posture of a work tool appropriately in accordance with the excavation environment and the excavation subject during automatic excavation control. For that purpose, in this invention, a control device calculates a target trajectory, which passes through an excavation starting position where a control point is located when excavation starts, an intermediate excavation position where the control point is located during excavation, and an excavation end position where the control point is located when excavation ends, and a target posture, which is a target posture of the work tool when the control point moves along the target trajectory, and the control device controls a control valve such that the control point moves along the target trajectory and such that the posture of the work tool matches the target posture while the control point moves along the target trajectory.
Inventors:
ISHII HIROKI (JP)
YAMAMOTO SHINJIRO (JP)
SHIWAKU KOJI (JP)
YAMAMOTO SHINJIRO (JP)
SHIWAKU KOJI (JP)
Application Number:
PCT/JP2022/013238
Publication Date:
September 28, 2023
Filing Date:
March 22, 2022
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F3/43; E02F9/20
Domestic Patent References:
| WO2017115810A1 | 2017-07-06 |
Foreign References:
| JPS63194033A | 1988-08-11 | |||
| JP2020041354A | 2020-03-19 | |||
| JP2022034651A | 2022-03-04 | |||
| JPS62160325A | 1987-07-16 | |||
| JP2016160718A | 2016-09-05 | |||
| JP2020037837A | 2020-03-12 | |||
| JP2020041354A | 2020-03-19 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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