Construction Equipment Sensitivity Control via Dynamic Lever Adjustment
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Solution Overview
Problem
Construction equipment operators are limited by pre-set operational sensitivity, which cannot be adjusted to suit specific tasks or devices, leading to reduced operability and increased fatigue.
Innovation Solution
An apparatus that includes an operation amount detection means, a control unit, an actuator, and an input unit, allowing users to detect, calculate, and adjust the operational sensitivity of construction equipment, enabling flexible setting according to the operation purpose or attached device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pre-set operational sensitivity is used for construction equipment, then the equipment structure remains simple and manufacturer settings are maintained, but the operator cannot adjust sensitivity for different tasks or devices, reducing operability and increasing fatigue
Solution Approach 1:
The patent implements dynamic adjustment of operational sensitivity by allowing the operator to modify the relationship between operation lever displacement and actuator drive amount. The control unit stores multiple sensitivity settings and enables selection based on different工作任务 or attached devices, transforming a static control system into a dynamic one that adapts to varying operational requirements.
Solution Approach 2:
The patent changes the parameter of operational sensitivity by allowing adjustment of the proportional control relationship between the operation lever and actuator. The control unit modifies the drive amount calculation based on user-defined sensitivity parameters, enabling the same equipment to operate with different control characteristics for different tasks or attached devices.
2Adaptability or versatility
If the operational sensitivity is fixed by the manufacturer, then the control system remains simple, but the adaptability to different operation purposes and attached devices is limited
Solution Approach 1:
The patent achieves universality by enabling a single control system to perform multiple sensitivity adjustment functions. The control unit can store and switch between different sensitivity settings, allowing the same operation lever to effectively control different attached devices or perform different tasks with optimized sensitivity characteristics for each application.
Solution Approach 2:
The system dynamically adapts to different operation purposes and attached devices through user-adjustable sensitivity settings. The control unit modifies the proportional control relationship in real-time based on the selected sensitivity profile, enabling the equipment to adapt its control characteristics to match the specific requirements of different tasks or devices.
3Measurement precision
If precise control of initial operation section is required, then the operator must precisely control the input device with pre-set sensitivity, but this increases the difficulty of operation without allowing sensitivity adjustment
Solution Approach 1:
The patent addresses precision control requirements by allowing the operator to adjust the sensitivity parameter in the initial operation section. By modifying the proportional control relationship, the operator can optimize the control precision for delicate operations, making precise control more achievable and less difficult.
Data Source
AI summary
An apparatus for setting an operational sensitivity for construction equipment is disclosed, which includes an operation amount detection means for detecting an operation amount of an operation lever, a control unit receiving the operation amount detected by the operation amount detection means and calculating a drive amount according to a relationship between a pre-stored operation amount and the drive amount (that is, operational sensitivity), an actuator operating according to the drive amount calculated by the control unit, and an input unit setting or changing the relationship between the operation amount and the drive amount stored in the control unit according to a user's key operation. The apparatus is so configured that a user can set the operational sensitivity according to an operation section of a proportional control operation device in the case where a proportional control type driving device is controlled using a proportional control type input device in the construction equipment, and thus the user can change the setting of the operational sensitivity according to an object mounted on the driving device or working conditions to improve the operation performance and to seek operator's convenience.