Autonomous Utility Vehicle Mowing Schedule From Work Unit Load
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Solution Overview
Problem
Existing utility vehicles require manual adjustment of mowing schedules based on seasonal changes in grass growth, which is cumbersome and inefficient.
Innovation Solution
An autonomously navigating utility vehicle equipped with an Electronic Control Unit (ECU) that adjusts the mowing schedule by determining the load of the work unit and reducing work when necessary, using sensors and a microprocessor to maintain or adjust the schedule based on grass growth estimates and user-defined parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment of mowing schedule is implemented, then work schedule can be adapted to seasonal changes, but user burden increases and operation convenience deteriorates
Solution Approach 1:
The system automatically monitors work load and adjusts the mowing schedule without user intervention. The ECU determines whether to reduce or maintain work based on actual work load data, eliminating the need for manual schedule adjustment by the user while maintaining adaptability to seasonal changes.
Solution Approach 2:
The system uses feedback from work load monitoring to automatically adjust the mowing schedule. The ECU continuously evaluates work load conditions and modifies the schedule accordingly, creating a closed-loop control system that adapts to changing conditions without requiring user input.
2Productivity
If automatic work load monitoring is implemented, then productivity improves through optimized scheduling, but device complexity increases
Solution Approach 1:
The ECU performs multiple functions including work load determination, schedule adjustment, and condition evaluation within a single control unit. This multi-functionality approach increases productivity through integrated control while minimizing the addition of separate complex components.
Solution Approach 2:
The system combines work load monitoring, schedule management, and automatic adjustment functions into a unified control system. By merging these functions, the system achieves improved productivity through coordinated operation while avoiding the complexity that would result from multiple independent systems.
Data Source
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AI summary
In a utility vehicle that runs a working area to perform work with a work unit comprising a blade and work motor, it is determined whether load of the work unit in work performed in accordance with an established work schedule is equal to or less than a predetermined value (S10, S12), and the established work schedule is adjusted to reduce work when it is determined that the load is equal to or less than the predetermined value (S14 - S24).