Display system for excavating machine, excavating machine, and display method for excavating machine

Patent metadata

Field	Value
Publication number	US-2016237654-A1
Application number	US-201414383579-A
Country	US
Kind code	A1
Filing date	May 15, 2014
Priority date	May 15, 2014
Publication date	Aug 18, 2016
Grant date	—

Abstract

A display system for an excavating machine allowing an upper swing body including a work implement to swing about a predetermined swing central axis. The display system includes a processing unit that obtains target swing information indicating an amount of swing of the upper swing body, based on information including a direction of a tooth edge of the bucket, information including a direction orthogonal to a target plane indicating a target shape of a work object, and information including a direction of the swing central axis, and displays an image corresponding to the obtained target swing information, the amount of swing being required for the tooth edge of the bucket to face the target plane, and the direction of the tooth edge of the bucket being determined based on information about a current position and posture of the excavating machine.

First claim

1 . A display system for an excavating machine, the display system being used for an excavating machine that can allow an upper swing body including a work implement having a bucket to swing about a predetermined swing central axis, the display system comprising:
a vehicle state detecting unit that detects information about a current position and posture of the excavating machine; a storage unit that stores at least position information of a target plane indicating a target shape of a work object; and a processing unit that obtains target swing information indicating an amount of swing of the upper swing body including the work implement, based on information including a direction of a tooth edge of the bucket, information including a direction orthogonal to the target plane, and information including a direction of the swing central axis, and displays an image corresponding to the obtained target swing information on a display apparatus, the amount of swing being required for the tooth edge of the bucket to face the target plane, and the direction of the tooth edge of the bucket being determined based on the information about the current position and posture of the excavating machine.

2 . The display system for an excavating machine according to claim 1 , wherein when the target swing information is not determined or when the target swing information is not obtained, the processing unit makes a display mode of the image corresponding to the target swing information displayed on the display apparatus different from that for when the target swing information is determined or when the target swing information is obtained.

3 . The display system for an excavating machine according to claim 1 , wherein the processing unit makes a mode of the image displayed on a screen of the display apparatus different before and after the tooth edge of the bucket faces the target plane.

4 . The display system for an excavating machine according to claim 1 , wherein
the bucket rotates about a first axis and rotates about a second axis orthogonal to the first axis, by which the tooth edge is tilted with respect to a third axis orthogonal to the first axis and the second axis, the display system further comprises a bucket tilt detecting unit that detects a tilt angle of the bucket, and the processing unit determines the direction of the tooth edge of the bucket, based on the tilt angle of the bucket detected by the bucket tilt angle detecting unit and the information about the current position and posture of the excavating machine.

5 . A display system for an excavating machine, the display system being used for an excavating machine that can allow an upper swing body including a work implement having a bucket to swing about a predetermined swing central axis, the display system comprising:
a vehicle state detecting unit that detects information about a current position and posture of the excavating machine; a storage unit that stores at least position information of a target plane indicating a target shape of a work object; and a processing unit that obtains, as target swing information, an amount of swing of the upper swing body including the work implement, based on information including a direction of a tooth edge of the bucket, information including a direction orthogonal to the target plane, and information including a direction of the swing central axis, and displays an image corresponding to the obtained target swing information, together with an image corresponding to the excavating machine and an image corresponding to the target plane, on a display apparatus, the amount of swing being required for the tooth edge of the bucket to become parallel to the target plane, and the direction of the tooth edge of the bucket being determined based on the information about the current position and posture of the excavating machine, wherein the processing unit makes a mode of the image corresponding to the target swing information displayed on a screen of the display apparatus different before and after the tooth edge of the bucket faces the target plane.

6 . An excavating machine comprising:
an upper swing body that swings about a predetermined swing central axis, a work implement having a bucket being mounted on the upper swing body; a traveling apparatus provided underneath the upper swing body; and a display system for an excavating machine, according to claim 5 .

7 . A display method for an excavating machine, the display method being used for an excavating machine that can allow an upper swing body including a work implement having a bucket to swing about a predetermined swing central axis, the display method comprising:
obtaining target swing information indicating an amount of swing of the upper swing body including the work implement, based on information including a direction of a tooth edge of the bucket, information including a direction orthogonal to the target plane, and information including a direction of the swing central axis, the amount of swing being required for the tooth edge of the bucket to face the target plane, and the direction of the tooth edge of the bucket being determined based on information about a current position and posture of the excavating machine; and displaying an image corresponding to the obtained target swing information on a display apparatus.

8 . The display method for an excavating machine according to claim 7 , wherein when the target swing information is not determined or when the target swing information is not obtained, a display mode of the image corresponding to the target swing information displayed on the display apparatus is made different from that for when the target swing information is determined or when the target swing information is obtained.

9 . An excavating machine comprising:
an upper swing body that swings about a predetermined swing central axis, a work implement having a bucket being mounted on the upper swing body; a traveling apparatus provided underneath the upper swing body; and a display system for an excavating machine, according to claim 1 .

Assignees

• Komatsu Mfg Co Ltd

Inventors

• Arimatsu Daiki
• Yamamura Masao
• Kurihara Takashi
• Nomura Azumi

Classifications

• E02F3/32

  working downwardly and towards the machine, e.g. with backhoes · CPC title

• E02F9/26 Primary

  Indicating devices {(E02F5/145 takes precedence)} · CPC title

• G07C5/0816

  Indicating performance data, e.g. occurrence of a malfunction · CPC title

• E02F9/265

  with follow-up actions (e.g. control signals sent to actuate the work tool) · CPC title

• E02F9/262

  with follow-up actions to control the work tool, e.g. controller · CPC title