发明授权
- 专利标题: Work machine
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申请号: US16641772申请日: 2018-04-17
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公开(公告)号: US11453995B2公开(公告)日: 2022-09-27
- 发明人: Masamichi Ito , Ryuu Narikawa , Shinya Imura
- 申请人: HITACHI CONSTRUCTION MACHINERY CO., LTD.
- 申请人地址: JP Tokyo
- 专利权人: HITACHI CONSTRUCTION MACHINERY CO., LTD.
- 当前专利权人: HITACHI CONSTRUCTION MACHINERY CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Mattingly & Malur, PC
- 国际申请: PCT/JP2018/015917 WO 20180417
- 国际公布: WO2019/202673 WO 20191024
- 主分类号: E02F9/22
- IPC分类号: E02F9/22 ; E02F3/43 ; E02F3/32 ; E02F9/20
摘要:
A hydraulic excavator (1) is provided with a controller (40) including an actuator control section (81) which, when an operation device (45, 46) is operated, controls at least one of a plurality of hydraulic actuators (5, 6, 7) in accordance with the velocities of the plurality of hydraulic actuators (5, 6, 7) and a predetermined condition. The controller (40) determines, based on a sensed value from a posture sensor (50), the direction of a load exerted on an arm cylinder (6) due to the weight of an arm (9), outputs, upon determining that the direction of the load is opposite to a driving direction of the arm cylinder (6), a second velocity Vamt2 to the actuator control section (81), and outputs, upon determining that the direction of the load is the same as the driving direction of the arm cylinder (6), a third velocity Vamt3 to the actuator control section (81).
公开/授权文献
- US20200248430A1 WORK MACHINE 公开/授权日:2020-08-06
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