公开(公告)号：US09115483B2

公开(公告)日：2015-08-25

申请号：US14342683

申请日：2013-02-27

Applicant: KOMATSU LTD.

Inventor： Yukihiro Sakuda ,  Satoru Shintani ,  Masato Kageyama

IPC: G06F7/70 ,  E02F9/26 ,  G01B7/00 ,  G01B7/30 ,  E02F9/22 ,  F15B15/28 ,  E02F3/42 ,  E02F3/43 ,  G01D5/26 ,  G01M13/00 ,  G01M17/00

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。

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。