Working Vehicle Automatic Steering Line Replacement Control
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Solution Overview
Problem
Existing agricultural working machines require manual re-setting of a reference travel line for automatic steering when changing to a new line or using a different machine, which can lead to unintended paths due to timing issues in transmitting replacement lines.
Innovation Solution
A support system for working vehicles that includes a vehicle with manual and automatic steering capabilities, a controller, and a communicator, which acquires device status to switch between modes for receiving and registering replacement travel lines from a server, ensuring accurate automatic steering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a replacement line is transmitted from an external device to replace the reference line, then the manual travel needs to be avoided and setup time is reduced, but automatic steering may be performed on an unintended path due to transmission timing issues
Solution Approach 1:
The system performs preliminary actions by checking the current operational status (manual/automatic mode, work implement status) before accepting or applying the replacement line data. This preliminary verification ensures that the reference line is only replaced at appropriate moments, preventing unintended path execution while still enabling efficient remote line updates.
2Adaptability or versatility
If the controller always replaces the reference line with the transmitted replacement line, then the latest path information is used, but unintended paths may be executed due to improper timing
Solution Approach 1:
The system dynamically adjusts its behavior based on real-time operational conditions. The controller monitors whether the vehicle is in manual or automatic steering mode and whether work implements are attached, then dynamically decides whether to accept the replacement line. This dynamic adaptation allows the system to be flexible in updating reference lines while maintaining reliability by avoiding replacements during inappropriate operational states.
3Reliability
If the system checks device status before replacing the reference line, then unintended path execution is prevented, but the control system becomes more complex
Solution Approach 1:
The system implements feedback mechanisms by continuously monitoring device status (steering mode, work implement attachment state) and using this feedback to control whether reference line replacement occurs. This feedback-based approach provides a systematic and manageable way to handle the replacement logic, making the controller complexity organized and maintainable while ensuring reliable operation.
Data Source
AI summary
A support system for a working vehicle includes a working vehicle including a vehicle body to travel selectively under manual steering or automatic steering, a controller, and a communicator, the controller is configured or programmed to define a planned travel line for and control the automatic steering based on a reference line, the communicator receiving a replacement line for replacing the reference line, and a server to transmit the replacement line to the communicator. The controller includes a status acquirer to acquire a status of a device provided in or on the working vehicle, and is configured or programmed to, in accordance with the status acquired by the status acquirer, switch between a first mode in which the controller replaces the reference line with the replacement line transmitted from the server and a second mode in which the controller does not replace the reference line with the replacement line.