Collision Avoidance Apparatus with Dead Angle Detection
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Solution Overview
Problem
Conventional collision avoidance systems face increased collision probabilities when a dead angle region is present due to preceding or crossing vehicles, leading to delayed detection and activation of collision avoidance processes during right or left turns at intersections.
Innovation Solution
A collision avoidance apparatus with an intersection determining unit, dead angle determination unit, right-left turn determination unit, and collision avoidance control unit that relaxes operational conditions when a dead angle region is detected, allowing for earlier activation of collision avoidance processes to prevent collisions with straight-running vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a collision avoidance process is executed based on conventional conditions (relative distance or relative speed), then the system operates with standard detection thresholds, but a dead angle region caused by preceding vehicles or crossing vehicles leads to detection delay and increased collision probability
Solution Approach 1:
The system changes the operational parameters of the collision avoidance process by relaxing detection thresholds and operational conditions when a dead angle region is detected. This allows the system to activate collision avoidance processes earlier than conventional systems would, compensating for the reduced detection capability in dead angle regions while maintaining safety.
Solution Approach 2:
The system performs preliminary detection of dead angle regions caused by preceding vehicles or crossing vehicles before executing the collision avoidance process. By identifying the presence of a dead angle region in advance, the system can proactively adjust its operational conditions to ensure timely collision avoidance despite the detection limitations.
2Reliability
If the system maintains strict operational conditions for collision avoidance, then false alarms are reduced, but collision avoidance activation is delayed when dead angle regions are present
Solution Approach 1:
The system dynamically adjusts its operational conditions based on the detected presence of a dead angle region. When a dead angle region is detected, the system relaxes operational conditions to enable earlier collision avoidance activation. This dynamic adaptation allows the system to optimize between false alarm reduction and timely collision avoidance based on real-time environmental conditions.
Data Source
AI summary
A collision avoidance apparatus is provided with an intersection determination unit, a dead angle determination unit, a right-left turn determination unit and a collision avoidance control unit.The collision avoidance control unit is configured to relax, when the right-left turn determination unit determines that the own vehicle makes a right turn or a left turn and the dead angle determination unit determines presence of the dead angle region, an operational condition of a collision avoidance process compared to a case where the dead angle region is not present, in order to avoid a collision between the own vehicle and a straight-running vehicle running on the opposite lane.