Excavator Adaptive Control via Handle Displacement and Angle

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Solution Overview

Problem

Existing excavator systems require manual selection and switching of working condition modes by the driver, leading to inefficiencies and reduced operator experience due to frequent changes in working conditions.

Innovation Solution

An adaptive control method that acquires detection parameters such as the displacement of an electric control handle and angle information of the excavator, identifies the current working condition, and automatically adjusts control parameters to optimize performance based on the identified condition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual selection and switching of working condition modes is implemented, then the excavator can adapt to different working conditions, but the driver's operational burden increases and efficiency decreases due to frequent switching

Engineering Contradiction:

Improveadaptability to working conditionsVSAvoiddriver operational burden

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system automatically detects working conditions and adjusts control parameters without driver intervention. The control device monitors detection parameters (electric control handle displacement, angle information) and autonomously identifies working conditions to switch between working condition modes, making the system self-adaptive and eliminating the need for manual mode switching by the driver

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system continuously monitors detection parameters including electric control handle displacement and angle information of action mechanisms, uses this feedback to identify current working conditions, and automatically adjusts control parameters accordingly. This closed-loop feedback mechanism enables real-time adaptation to changing working conditions without driver input

Inventive Principle:

Principle #23Feedback

2Reliability

If manual switching of working condition modes is required for every working condition change, then precise control can be maintained, but operating efficiency and user experience deteriorate due to frequent interruptions

Engineering Contradiction:

Improvecontrol precisionVSAvoidoperating efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system pre-identifies working conditions by continuously monitoring detection parameters and automatically prepares appropriate control parameters before the driver needs to act. The control device proactively detects changes in working conditions and switches modes in advance, maintaining control precision without requiring reactive manual intervention that would interrupt operation

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system replaces the mechanical manual switching operation with an automated electronic control system. The control device uses detection parameters and angle information to automatically identify working conditions and adjust control parameters, substituting the driver's manual mechanical switching action with an automated sensing and control system that maintains precision while eliminating operational interruptions

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12241237B2Adaptive control method applicable to excavator, electronic device, excavator and non-transitory storage medium

Publication Date: 2025.03.04 SANY HEAVY MACHINERY

AI summary

Disclosed is an adaptive control method applicable to an excavator. The adaptive control method includes: acquiring detection parameters of the excavator, the detection parameters comprising a displacement of an electric control handle of the excavator and angle information of the excavator; identifying a current working condition of the excavator based on the detection parameters; and adjusting control parameters of the excavator based on the current working condition. According to the adaptive control method provided by the present disclosure, the current working condition is identified by using the displacement of the electric control handle and the angle information of the excavator, and then the control parameters of the excavator are adjusted based on the current working condition, so that the control parameters are automatically adjusted with change of the current working condition, which improves control efficiency of the excavator.