Driving Assistance Apparatus Intersection Collision Avoidance
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Solution Overview
Problem
Existing driving assistance systems fail to effectively prevent host vehicles from interfering with traffic when the traffic signal prohibits proceeding in specific directions, particularly in intersections with multiple lanes and potential surrounding objects.
Innovation Solution
A driving assistance apparatus with a surrounding object recognition unit, signal recognition unit, and assistance unit that calculates a withdrawal route candidate to avoid contact with surrounding objects by determining the possibility of collision based on traffic signal states and predicted routes, allowing the vehicle to safely exit the intersection without interfering with other traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the host vehicle proceeds in a direction prohibited by the traffic signal, then the host vehicle can continue moving without stopping, but it may come into contact with surrounding objects and interfere with traffic
Solution Approach 1:
The system performs preliminary recognition of the traffic signal state and surrounding objects before the host vehicle proceeds. The assistance unit calculates predicted routes and determines collision possibility in advance, allowing the vehicle to take preventive action (calculate withdrawal route) before actually entering the intersection, thus maintaining movement continuity while ensuring safety.
Solution Approach 2:
The system dynamically adjusts the vehicle's route based on real-time conditions. When a prohibited direction is detected, the system calculates a withdrawal route candidate that dynamically redirects the vehicle to a safe exit path, transforming the static prohibited route into a dynamic safe alternative route.
2Speed
If the host vehicle enters the intersection when the traffic signal prohibits proceeding, then the vehicle can maintain its speed, but it creates potential contact with surrounding objects
Solution Approach 1:
The system applies preliminary anti-action by calculating the withdrawal route candidate before the host vehicle actually enters the intersection. The assistance unit determines that there is a possibility of contact and pre-calculates the alternative route, enabling the vehicle to counteract the potential collision risk before it materializes.
Solution Approach 2:
The withdrawal route candidate acts as an intermediary solution between the host vehicle's forward motion and the surrounding objects. Instead of directly allowing the vehicle to proceed into potential collision zones, the system introduces an intermediate alternative route that mediates the conflict between maintaining speed and avoiding collision.
3Ease of operation
If the host vehicle follows the predicted route, then the route is straightforward, but it may lead to contact with surrounding objects in prohibited directions
Solution Approach 1:
The route calculation is made dynamic rather than static. The assistance unit evaluates the traffic signal state and surrounding objects, then dynamically adjusts the route from the simple predicted route to the withdrawal route candidate when necessary, maintaining ease of operation through automated adjustment while improving reliability.
Solution Approach 2:
The system uses feedback from the traffic signal recognition and surrounding object recognition to adjust the route. The assistance unit receives feedback about prohibited directions and potential collisions, then feeds back the withdrawal route candidate to guide the host vehicle away from dangerous paths while maintaining operational simplicity.
Data Source
AI summary
A driving assistance apparatus includes a surrounding object recognition unit configured to recognize a surrounding object, a signal recognition unit configured to recognize a state of a light color of a traffic signal, and an assistance unit configured to assist driving of the host vehicle. The assistance unit is configured to determine whether or not there is a possibility that the host vehicle will come into contact with the surrounding object if the state of the light color is a state of prohibiting the host vehicle from proceeding in one or a plurality of specific directions and when the host vehicle proceeds in that specific direction, and calculate a withdrawal route candidate for the host vehicle to leave from the intersection without coming into contact with the surrounding object if it is determined that there is the possibility that the host vehicle will come into contact with the surrounding object.