Vehicle Interflow Control With Timed Automatic-Merge Handover
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Solution Overview
Problem
Existing vehicle control systems face challenges in balancing the possibility of automatic interflow from an interflow lane to a main lane with ensuring running safety, as they often fail to allocate sufficient time for both automatic interflow and manual handover processes.
Innovation Solution
A vehicle control device that judges conditions for automatic interflow and manually urges drivers to take control by setting specific positions within the interflow lane, using map and sensor information to execute notifications and control vehicle operations, ensuring compatibility between automatic interflow and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the control device tries to execute the automatic interflow as much as possible in the interflow lane, then the possibility of automatic interflow is improved, but the time for executing the proposal for handover is reduced
Solution Approach 1:
The control device performs preliminary judgment of interflow conditions at a first position before the vehicle actually reaches it. This advance assessment allows the system to prepare handover proposals in advance, ensuring that sufficient time is allocated for both automatic interflow execution and driver handover notification without conflict.
Solution Approach 2:
The control device dynamically adjusts the timing and positioning of handover proposals based on real-time evaluation of interflow conditions. By flexibly determining when to issue handover requests versus when to proceed with automatic interflow, the system optimizes the balance between automation execution and driver engagement timing.
2Reliability
If the control device tries to set much time for executing the proposal for handover as much as possible, then the running safety is improved, but the time for the automatic interflow is reduced
Solution Approach 1:
The control device evaluates interflow conditions at a predetermined first position before the vehicle reaches it, allowing advance preparation of safety assessments. This preliminary evaluation ensures that sufficient time is allocated for safety checks and handover proposals without compromising the overall interflow timeline.
Solution Approach 2:
The control device changes the spatial parameter by setting a specific first position within the interflow lane where condition evaluation occurs. This parameter adjustment optimizes the timing balance between safety verification and automatic interflow execution, ensuring both requirements are met within the available time window.
3Reliability
If the control device judges conditions at the first position, then the compatibility between automatic interflow and safety is improved, but the complexity of position-based judgment is increased
Solution Approach 1:
The control device segments the interflow lane into specific evaluation zones, with the first position being a predetermined location where interflow conditions are assessed. This spatial segmentation simplifies the judgment process by focusing evaluation at a specific point rather than continuously throughout the entire interflow lane, reducing computational complexity while maintaining safety compatibility.
Data Source
AI summary
When a subject vehicle reaches a first position of an interflow zone within an interflow lane, it is judged whether a condition for automatic interflow is satisfied. When it is judged that the condition for automatic interflow is not satisfied at the first position, a notification for urging manual interflow by a driver is stated to execute. When it is judged that the condition for automatic interflow is satisfied at the first position, the automatic interflow is stared to execute.