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Patent Searching and Data


Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/065384
Kind Code:
A1
Abstract:
A work machine that comprises: a work device that has a boom, an arm, and a work implement; and a control device that sets a target plane, calculates a work-implement-to-target-plane distance on the basis of signals from a position sensor and a posture sensor, and, when the arm is operated and the work-implement-to-target-plane distance is less than a prescribed distance, performs deceleration control that controls the boom and decelerates the arm such that the work implement does not go past the target plane and dig into the ground. On the basis of the target plane set and the signals from the position sensor and the posture sensor, the control device determines whether it is possible for the work implement to penetrate the target plane when the arm has been operated, and when it has been determined that it is not possible for the work implement to penetrate the target plane, the control device does not perform the deceleration control, even when the work-implement-to-target-plane distance is less than the prescribed distance.

Inventors:
IGARASHI TERUKI (JP)
NARAZAKI AKIHIRO (JP)
MEGURIYA SHUUICHI (JP)
Application Number:
PCT/JP2020/034010
Publication Date:
April 08, 2021
Filing Date:
September 08, 2020
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F3/43; E02F9/20
Foreign References:
JP2019151973A2019-09-12
JP2018155077A2018-10-04
JP2001032331A2001-02-06
US20140343820A12014-11-20
Attorney, Agent or Firm:
KAICHI IP (JP)
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