Variable Behavior Electronic Hydraulic Control for Joystick
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Solution Overview
Problem
Existing mechanical hydraulic systems in construction machines compromise between operator comfort and abrupt operation efficiency, as they have fixed characteristics that cannot adapt to varying behaviors, leading to suboptimal performance in tasks like beating operations.
Innovation Solution
An electronic hydraulic pressure control apparatus with a variable behavior mode that detects joystick manipulations to switch between general and abrupt operation modes, using a signal input unit, behavior mode changing unit, signal processing unit, and proportional valve driving unit to adjust hydraulic pressure accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the response of the hydraulic joystick lever is increased to improve abrupt operation efficiency, then beating operation efficiency is improved, but operator comfort is reduced due to vibrations and harsh behavior
Solution Approach 1:
The patent applies dynamics by making the hydraulic system's behavior characteristics variable rather than fixed. The control system dynamically adjusts the behavior mode (general or abrupt operation) based on detected joystick manipulation patterns, allowing the system to adapt its response characteristics in real-time to match the operator's intentions and the current work conditions.
Solution Approach 2:
The patent changes the parameter of behavior characteristics by detecting manipulation patterns (such as frequency and amplitude of joystick movements) and switching between different behavior modes. This parameter change allows the system to optimize performance for specific tasks like beating operations while maintaining comfort during normal operations.
2Ease of operation
If the behavior is set too softly to improve operator comfort, then operator comfort is improved, but abrupt operation efficiency deteriorates due to insufficient response
Solution Approach 1:
The system transitions from a static, fixed-behavior hydraulic system to a dynamic one that can switch between soft (general behavior) and responsive (abrupt operation behavior) modes based on real-time detection of manipulation patterns, ensuring optimal performance for the current operational context.
Solution Approach 2:
The control system changes the behavioral parameters of the hydraulic system by detecting specific manipulation patterns (such as rapid back-and-forth joystick movements) and adjusting the system response accordingly, enabling abrupt operations to achieve maximum efficiency while maintaining comfort during normal operations.
3Device complexity
If a mechanical hydraulic system with fixed characteristics is used, then system simplicity is maintained, but adaptability to various operation modes is reduced
Solution Approach 1:
The patent replaces the traditional mechanical hydraulic control system with an electronic control system that uses sensors, signal processing units, and electronic control valves. This substitution enables the system to detect manipulation patterns and dynamically adjust behavior modes, significantly improving adaptability while maintaining reasonable complexity through electronic rather than mechanical means.
Data Source
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AI summary
The present invention relates to an electronic hydraulic pressure control apparatus and an electronic hydraulic pressure control method using a variable behavior, and more particularly, to an electronic hydraulic pressure control apparatus and an electronic hydraulic pressure control method using a variable behavior which can detect that a user manipulates an electronic joystick of an electronic hydraulic system to positive and negative positions with respect to a neutral point in a preset time period, and vary a behavior (for example, a general behavior or an abrupt operation behavior) according to the detection result, thereby enhancing both comfortableness of an operator and an abrupt operation efficiency in manipulating a construction machine and providing a convenience for an operator.