Vehicle Control Device for Intersection Safety via Dual-Region Obstacle Detection
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Solution Overview
Problem
Existing self-driving vehicle technologies face challenges in safely navigating intersections, sidewalks, and pedestrian crossings, as they often get stuck due to obstacles in adjacent regions, leading to dangerous situations.
Innovation Solution
A vehicle equipped with an electrically controllable power unit, steering device, and braking device, along with a sensor circuit and processor, that detects obstacles in both the current and adjacent regions on a predetermined route, allowing it to safely enter or stop before hazardous areas by controlling its movement based on the presence or absence of obstacles in these regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle enters the first region (intersection, sidewalk, or pedestrian crossing) without checking the second region, then the vehicle can proceed efficiently along the predetermined route, but the vehicle may get stuck in dangerous situations when obstacles are present in the second region
Solution Approach 1:
The sensor circuit performs preliminary detection of obstacles in the second region (adjacent area beyond the intersection) before the vehicle enters the first region. This advance detection allows the control device to determine whether it is safe to proceed through the intersection, preventing the vehicle from getting stuck when obstacles are present in the exit area.
2Object-affected harmful factors
If the vehicle detects obstacles in both the first and second regions, then the vehicle can avoid collisions with obstacles, but the vehicle may unnecessarily stop before the first region when the second region is blocked
Solution Approach 1:
The control device applies different control strategies based on the location of obstacles. When obstacles are detected only in the second region (beyond the intersection), the vehicle is allowed to proceed through the first region (intersection) since the immediate path is clear. When obstacles are detected in the first region itself, the vehicle stops before entering. This localized decision-making avoids unnecessary stopping while maintaining collision avoidance.
Data Source
AI summary
A vehicle includes a sensor circuit configured to detect an obstacle in a first region which is located on the predetermined traveling route and in a second region which is adjacent to the first region on the predetermined traveling route, the second region being farther than the first region. The vehicle enters the first region in a case where: there is no obstacle in the first region; and there is no obstacle in the second region, and does not enter the first region and stops before the first region in a case where: there is no obstacle in the first region; and there is an obstacle in the second region.