Excavation Bucket Earth-Amount Estimation for Flexible Digging Control

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Solution Overview

Problem

Existing excavation devices struggle to adjust the excavation earth amount to a freely-selected value, limiting flexibility and efficiency in excavation operations.

Innovation Solution

An excavation information processing device that acquires target object position information and estimates the excavation earth amount based on bucket position and posture information, allowing for sequential estimation and adjustment of the excavation earth amount.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the excavation point is determined to maximize excavation earth amount, then the excavation efficiency is improved, but the flexibility to adjust excavation earth amount to freely-selected values is reduced

Engineering Contradiction:

Improveexcavation efficiencyVSAvoidflexibility to adjust excavation earth amount

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The system implements feedback by sequentially estimating the excavation earth amount based on real-time bucket position and posture information, then using this estimation to provide feedback to the operator or control system, enabling dynamic adjustment of excavation parameters to achieve freely-selected excavation amounts while maintaining high efficiency

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system transitions from static excavation point determination to dynamic sequential estimation of excavation earth amount during the excavation process, allowing the system to adapt and adjust the excavation earth amount to freely-selected values based on real-time conditions, thereby resolving the contradiction between efficiency and flexibility

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12312774B2Excavation information processing device, work machine, excavation support device, and excavation information processing method

Publication Date: 2025.05.27 KOMATSU LTD

AI summary

An excavation information processing device includes an acquisition unit configured to acquire target object position information indicating an excavation target object by position information of a plurality of points, and an excavation earth amount estimation unit configured to sequentially estimate and output an excavation earth amount acquired by a bucket when the bucket performs holding at that point in time based on bucket position and posture information indicating a position and a posture of the bucket and the target object position information.