COMPUTING DEVICE AND COMPUTATION METHOD

Title:

COMPUTING DEVICE AND COMPUTATION METHOD

Document Type and Number:

WIPO Patent Application WO/2022/209214

Kind Code:

A1

Abstract:

Provided is a computing device that can accurately calculate the weight of a load conveyed by a work machine. A hydraulic excavator (100) comprises: a vehicle body; a boom bottom pin (5a) that is supported by the vehicle body; a boom (3a) that is rotatably joined to the vehicle body via the boom bottom pin (5a); a boom top pin (5b) that is attached to the tip of the boom (3a); an arm (3b) that is rotatably joined to the boom (3a) via the boom top pin (5b); an arm top pin (5c) that is attached to the tip of the arm (3b); and a bucket (3c) that is rotatably joined to the arm (3b) via the arm top pin (5c). The computing device calculates the weight of the load conveyed by the work machine (3) from at least two balance expressions among the balance expression of moment around the boom bottom pin (5a), the balance expression of moment around the boom top pin (5b), and the balance expression of moment around the arm top pin (5c).

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Inventors:

SHIMIZU MINORU (JP)
YAMAWAKI SHOTA (JP)
KOYAMA MOTOKI (JP)

Application Number:

PCT/JP2022/002400

Publication Date:

October 06, 2022

Filing Date:

January 24, 2022

Export Citation:

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Assignee:

KOMATSU MFG CO LTD (JP)

International Classes:

E02F9/20; G01G19/10

Foreign References:

JP2021021263A	2021-02-18
JPH07252091A	1995-10-03
JP2019157362A	2019-09-19
JP2020164325A	2020-10-08

Attorney, Agent or Firm:

FUKAMI PATENT OFFICE, P.C. (JP)

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