Adjustable-Width Mower Steering for Precise Pass Alignment
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Solution Overview
Problem
Mowers with adjustable cutting widths face challenges in aligning subsequent passes due to manual steering errors, which can lead to misalignment and turf damage, and operators often struggle to adjust turns according to changing widths and visibility issues.
Innovation Solution
A mowing pass alignment system with a controller that receives cutting width signals and controls the steering mechanism to automatically align the mower for the next pass, utilizing a processor, memory, and mowing pass alignment logic to execute a desired turn path based on the cutting width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual steering is used to turn the mower into the next pass, then the operator can control the turning process, but misalignment and turf damage occur due to human error and difficulty in judging the correct turn position
Solution Approach 1:
The patent replaces manual mechanical steering with an automated steering control system that uses sensors to detect the mower's position and automatically adjusts the steering mechanism. This substitution eliminates human error in judging turn positions and achieves precise alignment with the next pass, directly resolving the contradiction between manual control capability and alignment precision.
2Adaptability or versatility
If the cutting width is adjusted, then the mower can adapt to different mowing requirements, but the operator struggles to adjust turns to match the changed cutting width
Solution Approach 1:
The patent implements a feedback mechanism where sensors continuously monitor the cutting width setting and provide this information to the control system. The control system then automatically adjusts the steering parameters based on the detected cutting width, eliminating the need for the operator to manually recalculate and adjust turns. This closed-loop feedback resolves the contradiction by making the system adapt automatically to cutting width changes.
Solution Approach 2:
The automated steering system performs the turn adjustment function autonomously without requiring operator intervention. When the cutting width changes, the system self-adjusts the steering parameters based on pre-programmed logic and sensor data, making the operation easier and more consistent. This self-service capability directly addresses the ease of operation issue while maintaining adaptability.
3Measurement precision
If the operator tries to see the current cutting width to adjust turns properly, then alignment can be improved, but visibility limitations make it difficult for operators to accurately judge the cutting width
Solution Approach 1:
The patent introduces sensors and electronic displays as intermediary elements between the cutting width adjustment mechanism and the operator. Instead of relying on the operator's direct visual estimation, the system uses sensors to precisely measure the cutting width and displays this information electronically, providing accurate real-time data to both the control system and the operator. This intermediary measurement system resolves the contradiction by making cutting width detection precise and unambiguous.
Data Source
AI summary
A mowing pass alignment system for turning a mower with adjustable cutting width. The mowing pass alignment system includes a mower blade arrangement having an adjustable cutting width, a plurality of wheels including at least one drive wheel configured to provide traction for moving the mower across the ground, a steering mechanism configured to turn the mower, and a controller operatively coupled with the steering mechanism. The controller includes a processor, a memory operatively coupled with the processor, and mowing pass alignment logic stored in the memory and being executable by way of the processor such that the controller is configured to: receive an electronic signal corresponding to the cutting width, and control the steering mechanism to turn the mower into alignment with a next pass based at least in part on the cutting width.