公开(公告)号：US20210131075A1

公开(公告)日：2021-05-06

申请号：US16487850

申请日：2017-08-31

Applicant: Komatsu Ltd.

Inventor： Yoshito Kumakura ,  Satoru Shintani ,  Daiki Arimatsu

IPC: E02F9/26

Abstract: A display system for an excavation machine includes a calculator configured to calculate, based on vehicle state data indicating a position and a posture of a vehicle body of an excavation machine, working equipment outer shape data indicating an outer shape and a dimension of working equipment supported by the vehicle body, and working equipment state data indicating a posture of the working equipment, a reference vector extending in a widthwise direction of a bucket of the working equipment and passing through a specified portion of the bucket, and a display controller configured to cause a display device to display the bucket and a target line viewed from a direction orthogonal to the reference vector.

公开(公告)号：US10900201B2

公开(公告)日：2021-01-26

申请号：US15521969

申请日：2016-09-30

Applicant: Komatsu Ltd.

Inventor： Satoru Shintani ,  Yoshito Kumakura ,  Daiki Arimatsu

IPC: E02F9/26 ,  G01C9/06 ,  G01C9/04 ,  E02F3/32 ,  E02F9/20 ,  G06T3/40 ,  G06T3/60 ,  G06T11/00

Abstract: A display system of a working machine includes: a tilt sensor that detects a pitch angle and a roll angle of a working machine; a calculation unit that calculates a tilting position on polar coordinates that indicates a magnitude and a direction of tilt of the working machine based on the detected pitch angle and roll angle; a display unit that displays various kinds of information; a display processing unit that displays, on a predetermined region on a display screen of the display unit, a monitor-displayed level that performs a polar coordinate display of the tilting position and a marked line indicating a preset magnitude of tilt; and a setting processing unit that performs a setting to change display content of the monitor-displayed level.

公开(公告)号：US20150066312A1

公开(公告)日：2015-03-05

申请号：US14342683

申请日：2013-02-27

Applicant: KOMATSU LTD.

Inventor： Yukihiro Sakuda ,  Satoru Shintani ,  Masato Kageyama

IPC: E02F9/26 ,  E02F9/22 ,  G01M17/00 ,  G01D5/26 ,  G01M13/00 ,  E02F3/42 ,  E02F3/43

CPC classification number: E02F9/264 ,  E02F3/425 ,  E02F3/435 ,  E02F9/2271 ,  F15B15/04 ,  F15B15/28 ,  F15B15/2861 ,  F15B2211/6336 ,  F15B2211/6656 ,  F15B2211/7656 ,  G01B7/00 ,  G01B7/30 ,  G01D5/264 ,  G01M13/00 ,  G01M17/00

Abstract: A hydraulic excavator includes a base body portion, a movable portion, a hydraulic cylinder, a position sensor, a rotary encoder, and a control unit. The rotary encoder includes a light emitting unit, a light receiving unit, and a disk unit having a plurality of transmission portions. The control unit measures the stroke length of the hydraulic cylinder by correcting deviation of the stroke length, which is measured by the position sensor, based on the pulse signal output from the rotary encoder. In this way, there can be obtained a hydraulic excavator capable of precisely measuring a stroke length of a hydraulic cylinder driving a work implement, as well as a method for measuring the stroke of the hydraulic cylinder of the hydraulic excavator.

Abstract translation: 液压挖掘机包括基体部分，可移动部分，液压缸，位置传感器，旋转编码器和控制单元。 旋转编码器包括发光单元，光接收单元和具有多个传输部分的盘单元。 控制单元通过基于由旋转编码器输出的脉冲信号来校正由位置传感器测量的行程长度的偏差来测量液压缸的行程长度。 以这种方式，可以获得能够精确地测量驱动工作工具的液压缸的行程长度的液压挖掘机以及用于测量液压挖掘机的液压缸的冲程的方法。