Invention Grant
- Patent Title: Work machine
-
Application No.: US16981555Application Date: 2019-06-06
-
Publication No.: US11591769B2Publication Date: 2023-02-28
- Inventor: Takaaki Chiba , Hiroaki Tanaka , Hisami Nakano
- Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
- Current Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, PC
- Priority: JPJP2018-162052 20180830
- International Application: PCT/JP2019/022624 WO 20190606
- International Announcement: WO2020/044711 WO 20200305
- Main IPC: E02F3/43
- IPC: E02F3/43 ; E02F3/32 ; E02F9/20 ; E02F9/22

Abstract:
A controller mounted in a work machine limits a velocity at which a work device approaches a design surface to be equal to or lower than a predetermined limiting velocity in such a manner that the work machine is located above the design surface when an operation device is operated. The controller determines whether a work phase of the work device is compaction work on the basis of a posture of a bucket with respect to the design surface in a case in which the operation device instructs the work device to approach the design surface, and sets the limiting velocity when determining that the work phase of the work device is the compaction work to be higher than the limiting velocity when determining that the work phase of the work device is other than the compaction work.
Public/Granted literature
- US20210062460A1 WORK MACHINE Public/Granted day:2021-03-04
Information query