Vehicle Control Device for Dynamic Intersection Priority Management
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Solution Overview
Problem
Conventional traffic control methods relying on infrastructure, such as traffic signals and signs, are impractical for all intersections and lead to unnecessary stops and slowdowns, especially in areas without infrastructure, and fail to adapt dynamically to changing traffic conditions.
Innovation Solution
A vehicle control device that determines priority for intersection access between vehicles and performs braking control to ensure safe and smooth passage through intersections with minimal deceleration, using vehicle-to-vehicle communication and position detection to manage vehicle interactions without relying on infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic control is carried out using infrastructure (traffic signals, signs, stop lines), then traffic safety is improved, but traffic flow efficiency deteriorates due to unnecessary stops and slowdowns
Solution Approach 1:
Vehicles autonomously determine their own priority and perform self-braking control based on detected crossing vehicles, eliminating the need for infrastructure-based traffic signals and signs. Each vehicle independently makes decisions to yield or proceed, improving traffic flow while maintaining safety through automated priority management.
Solution Approach 2:
The patent replaces the mechanical infrastructure system (traffic signals, signs, stop lines) with an electronic communication-based system where vehicles exchange information and autonomously coordinate their movements. This substitution eliminates fixed control points and enables dynamic, adaptive traffic management.
2Reliability
If deceleration control is applied to both vehicles at intersections, then collision prevention is improved, but traffic smoothness deteriorates
Solution Approach 1:
The patent applies deceleration control selectively rather than universally. Priority is given to one vehicle based on detection results, allowing it to proceed without braking while the other vehicle performs deceleration control. This localized application of braking to only the non-priority vehicle maintains collision prevention while improving traffic smoothness.
Solution Approach 2:
The priority determination is dynamic and based on real-time detection of crossing vehicles. The system continuously monitors the environment and adjusts braking control accordingly, rather than applying fixed rules to all vehicles. This dynamic approach ensures that only necessary braking actions are taken, maintaining both safety and traffic flow efficiency.
3Stability of the object's composition
If fixed traffic control rules are enforced, then traffic order is improved, but adaptability to changing traffic conditions deteriorates
Solution Approach 1:
The system dynamically determines traffic priority based on real-time detection of crossing vehicles rather than enforcing fixed rules. The priority status can change depending on the presence and position of other vehicles, allowing the traffic control to adapt to changing conditions while maintaining order through consistent application of the detection-based priority system.
Solution Approach 2:
The system uses continuous detection and monitoring of crossing vehicles to provide feedback for priority determination. This feedback mechanism allows the traffic control to adapt to current traffic conditions by detecting the presence, position, and movement of other vehicles, and adjusting priority assignments accordingly rather than following predetermined fixed rules.
Data Source
AI summary
In a vehicle control device which performs braking control of a vehicle, a priority setting unit determines, when a possibility that a self-vehicle and another vehicle cross each other at an intersection in front of the self-vehicle is detected, a priority for each of the self-vehicle and the other vehicle with respect to access to the intersection. A braking control unit performs, when the self-vehicle has no priority over the other vehicle with respect to access to the intersection, the braking control of the self-vehicle so that the self-vehicle enters the intersection after the other vehicle passes through the intersection.