Autonomous Work Vehicle Dynamic Passage Control
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Solution Overview
Problem
In workplaces like construction sites, autonomous work vehicles and manned vehicles often face challenges passing each other due to narrow vehicle passages, leading to interference and hindered smooth travel.
Innovation Solution
A work vehicle equipped with an acquisition unit to map passing, non-passing, and retreat regions within the vehicle passage, and a control unit to adjust its travel path to ensure safe passage by either staying in the passing region or retreating to a designated area when the passage is too narrow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the width of the vehicle passage is narrowed to fit actual workplace space constraints, then space utilization is improved, but the ability of autonomous and manned vehicles to pass each other deteriorates
Solution Approach 1:
The autonomous work vehicle dynamically adjusts its traveling speed based on real-time detection of oncoming vehicles and current passage width conditions. When an oncoming vehicle is detected in a narrow passage, the autonomous vehicle automatically reduces speed or stops to allow safe passing, transforming a static navigation problem into a dynamic interaction that resolves the contradiction between limited space and passing capability
Solution Approach 2:
The system implements continuous feedback loops where sensors detect oncoming vehicles and passage conditions, the control unit processes this information against pre-stored passage width data, and the traveling speed is adjusted accordingly. This closed-loop feedback mechanism enables the autonomous vehicle to adapt its behavior in real-time, ensuring safe passage in narrow workspaces while maintaining operational efficiency
2Productivity
If the autonomous work vehicle travels at high speed to improve productivity, then output is improved, but safety in narrow passages where passing is difficult deteriorates
Solution Approach 1:
The autonomous vehicle employs dynamic speed adjustment rather than maintaining a constant high speed. The traveling speed control unit continuously modifies velocity based on real-time conditions: maintaining high speed in open areas for productivity, but automatically reducing speed or stopping when oncoming vehicles are detected in narrow passages for safety. This dynamic approach resolves the contradiction between productivity and safety
Solution Approach 2:
The system performs preliminary detection of oncoming vehicles and passage width conditions before entering potentially problematic narrow sections. By detecting conditions in advance and pre-adjusting traveling speed or position, the autonomous vehicle prevents safety issues before they occur, rather than reacting after a conflict arises. This preliminary anti-action ensures both high productivity in safe zones and reliability in constrained areas
Data Source
AI summary
A work vehicle including a control unit configured to control traveling of the work vehicle such that the work vehicle and an oncoming vehicle are able to pass each other in a vehicle passage, wherein the control unit controls the traveling of the work vehicle such that the work vehicle travels in a first region when the work vehicle and the oncoming vehicle pass each other, and controls the traveling of the work vehicle such that the work vehicle is retreated to a third region to which the work vehicle is capable of being retreated from a second region in a case where the work vehicle is incapable of traveling in the first region when the work vehicle and the oncoming vehicle pass each other.