Work Vehicle Arm Control for Implement Height Constraints
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Solution Overview
Problem
Work vehicles with movable arms face challenges in optimizing the position and load capacity of the arm based on the type of implement attached, as existing systems do not effectively differentiate between unrestricted-height and restricted-height implements, leading to inefficient load distribution and reduced utility.
Innovation Solution
An arm control system that uses a controller to receive signals indicative of the implement type, enabling movement between lowered and raised positions for unrestricted-height implements and restricting upward movement beyond an intermediate position for restricted-height implements, thereby optimizing the arm's position and load capacity based on the implement type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the arm is allowed to move to the raised position for unrestricted-height implements, then the versatility and operational range of the work vehicle is improved, but the load capacity and stability are reduced when restricted-height implements are attached
Solution Approach 1:
The system dynamically adjusts the arm's movement range based on the implement type. When a restricted-height implement is detected, the controller limits the arm to an intermediate position, preventing full raising. This dynamic adjustment of operational parameters resolves the contradiction by adapting the arm's range of motion to the specific implement requirements, maintaining load capacity while preserving versatility through conditional full-range operation.
2Strength
If the arm is restricted to an intermediate position for restricted-height implements, then the load capacity and stability are improved, but the operational flexibility is reduced
Solution Approach 1:
The controller changes the operational parameter (arm position limit) based on the implement type. For restricted-height implements, the system transitions from allowing full raised position to enforcing an intermediate position limit. This parameter change optimizes load capacity and stability for restricted implements while maintaining operational flexibility through automatic adaptation to different implement configurations.
3Device complexity
If a single arm configuration is used for all implement types, then the device complexity is reduced, but the productivity and efficiency are reduced due to suboptimal load distribution
Solution Approach 1:
The controller serves multiple functions by automatically detecting implement type and adjusting arm position limits accordingly. This single universal control system replaces the need for separate control mechanisms for different implement types, maintaining low device complexity while significantly improving productivity through optimized load distribution and arm positioning for each specific implement configuration.
Data Source
AI summary
An arm control system for a work vehicle includes a controller having a memory and a processor. The controller is configured to receive a signal indicative of a type of implement coupled to an arm of the work vehicle. The controller is also configured to enable movement of the arm between a lowered position and a raised position while the type of implement is an unrestricted-height implement. In addition, the controller is configured to enable movement of the arm between the lowered position and an intermediate position and to block upward movement of the arm beyond the intermediate position while the type of implement is a restricted-height implement.