Excavator Hydraulic Control for Reduced Boom and Bucket Impact
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Solution Overview
Problem
Inexperienced operators of excavators face challenges in finely manipulating the operating lever, leading to sudden movements that generate strong impacts and vibrations, causing equipment damage and reducing efficiency.
Innovation Solution
A system that collects boom, stick, and bucket inclination angles, along with operating lever states, to determine if these angles are within safe ranges, and controls the electronically controlled main valve and main pump to adjust hydraulic fluid flow and pressure, reducing impacts and vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the operating lever is manipulated quickly to improve working efficiency, then productivity increases, but strong impact and vibration are generated causing equipment damage
Solution Approach 1:
The control system performs preliminary detection of the operating lever's state and movement trends before the actual movement occurs. By predicting the upcoming movement and pre-adjusting hydraulic flow and pressure, the system prevents sudden impacts while maintaining responsive operation. This anticipatory control allows quick movements without generating harmful vibrations or shocks to the equipment.
2Object-affected harmful factors
If the operating lever is manipulated finely to reduce impact, then harmful factors decrease, but productivity and working efficiency are reduced
Solution Approach 1:
The system dynamically adjusts hydraulic flow and pressure based on real-time detection of the operating lever's position, movement speed, and acceleration. Rather than using a fixed conservative control mode, the system adapts its control parameters continuously, allowing fine manipulation when needed and faster response when safe, thereby maintaining both low impact and high productivity throughout the operation cycle.
3Productivity
If the operating lever is manipulated quickly to reach limit positions, then productivity increases, but equipment damage occurs due to strong impact
Solution Approach 1:
The control system continuously monitors the operating lever's state and the working apparatus's position, providing real-time feedback to adjust hydraulic parameters. When approaching limit positions, the system detects the changing state and automatically adjusts flow and pressure to prevent excessive impact, allowing quick movements while protecting equipment durability through continuous adaptive control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces equipment failure rates and improves efficiency by stabilizing excavator operations, extending service life and enhancing operator comfort.
Implementation Method 1
controls the electronically controlled main valve and main pump to adjust hydraulic fluid flow and pressure
Data Source
AI summary
Disclosed are an apparatus and a method for actively reducing an action impact of an excavator, and an excavator, which are related to the technical field of engineering vehicles. The method includes: collecting a boom inclination angle, a stick inclination angle, a bucket inclination angle, and state information of an operating lever, of the excavator; determining operation information of the operating lever, and judging whether the boom inclination angle, the stick inclination angle, and the bucket inclination angle are within set ranges; and controlling, based on a judgment result, operating states of an electronically controlled main valve and a main pump of the excavator. The method may reduce impact and vibration generated during operation of the excavator, thereby reducing a failure rate, and improving service life and work efficiency.