Work Vehicle Speed Limiting Based on Public Road Detection
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Solution Overview
Problem
Existing work vehicles lack accurate determination methods for distinguishing between traveling on public roads and working fields, and they do not effectively limit vehicle speed to comply with road regulations, leading to potential violations.
Innovation Solution
A work vehicle equipped with a public road traveling determination unit that utilizes satellite positioning and map matching, image recognition, or laser radar to accurately determine road type, coupled with a vehicle speed limiter to enforce speed limits, ensuring compliance with regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle speed is not limited when traveling on public roads, then vehicle productivity is maintained, but regulatory compliance and safety deteriorate
Solution Approach 1:
The control unit continuously receives location information from the location acquisition unit, determines whether the vehicle is on a public road, and dynamically adjusts the vehicle speed based on this feedback loop. When public road travel is detected, the control unit limits the vehicle speed to comply with regulations, while allowing higher speeds in working fields to maintain productivity.
2Reliability
If accurate public road determination is implemented, then regulatory compliance improves, but device complexity increases
Solution Approach 1:
The patent introduces a location acquisition unit that serves as an intermediary between the vehicle's navigation system and the control unit. This unit specifically extracts location information and provides it to the control unit for public road determination, simplifying the overall system architecture while improving determination accuracy through dedicated functionality.
3Reliability
If vehicle speed is automatically limited based on location, then safety and compliance improve, but loss of operational flexibility increases
Solution Approach 1:
The vehicle speed limit is made dynamic rather than fixed. The control unit automatically adjusts the permissible speed range based on the vehicle's real-time location determined by the location acquisition unit. When the vehicle is detected traveling on a public road, the speed is automatically limited to comply with regulations; when in working fields, the vehicle can operate at higher speeds for improved productivity.
Data Source
AI summary
A work vehicle capable of traveling on a public road and in a working field includes, a vehicle body, a public road traveling determination unit, and a vehicle speed limiter. The public road traveling determination unit is configured to generate vehicle body position information regarding a position at which the vehicle body is located, determine, based on the vehicle body position information, whether or not the vehicle body is traveling on the public road, and output a determination result. The vehicle speed limiter is configured to limit a vehicle speed in accordance with the determination result.