Vehicle Collision Avoidance System Blind Spot Warning Suppression
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Solution Overview
Problem
Modern collision avoidance systems in vehicles generate unnecessary warnings and controls in situations where actual collisions are unlikely, causing distractions and reducing operator satisfaction and performance.
Innovation Solution
A system and method that suppresses or adjusts warnings and controls based on vehicle speed, trajectory, and blind spot considerations to minimize distractions by identifying potential collisions that are unlikely to occur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the collision avoidance system generates warnings and control signals for all detected potential collisions, then the system provides comprehensive safety coverage, but the operator experiences increased distractions and reduced satisfaction
Solution Approach 1:
The system changes parameters related to warning generation by evaluating additional contextual factors (vehicle speed, trajectory, blind spot location, object type) before generating warnings. This filters out false alarms while maintaining safety coverage for genuine threats.
Solution Approach 2:
The system uses feedback from multiple sensors (collision sensors, speed sensors, trajectory data) to continuously evaluate the validity of detected objects and adjust warning generation accordingly, reducing false positives while maintaining comprehensive safety monitoring.
2Reliability
If the system continuously monitors and warns of potential collisions in narrow city streets with many objects, then the system maintains high safety awareness, but the operator's ability to properly operate the vehicle is negatively impacted
Solution Approach 1:
The system modifies its warning generation parameters by incorporating vehicle speed, trajectory, and blind spot analysis to distinguish between transient objects (like pedestrians crossing briefly) and genuine collision threats, reducing unnecessary warnings that hinder operator performance.
Solution Approach 2:
The system applies different evaluation criteria to different spatial zones around the vehicle, particularly considering blind spot regions and areas where frequent transient objects are expected, thereby reducing false alarms in specific locations while maintaining vigilance in critical zones.
3Reliability
If the collision avoidance system generates warnings for brief steering changes that introduce objects into the path, then the system provides continuous protection, but the operator experiences unwanted distractions
Solution Approach 1:
The system performs preliminary evaluation of detected objects by analyzing vehicle speed, trajectory, and the nature of the detected object before generating warnings. This preliminary action filters out transient situations (like brief steering adjustments) that would trigger false alarms while maintaining protection against genuine threats.
Solution Approach 2:
The system changes the parameters for warning generation by requiring multiple conditions to be met simultaneously (object detection, low vehicle speed, specific trajectory conditions, object in blind spot region) before issuing a warning, thereby reducing distractions from normal driving maneuvers.
Data Source
AI summary
A vehicle collision avoidance system includes a collision sensor that generates a collision signal indicative of an object in a path of travel of the vehicle. A controller identifies a first side of the vehicle containing a blind spot for an operator of the vehicle. The controller further identifies a potential collision between the vehicle and the object responsive to the collision sensor and the speed of the vehicle and the trajectory of the vehicle. The controller suppresses, or adjusts one or more conditions for, generation of a control signal relating to the potential collision if the vehicle speed and trajectory meet predetermined conditions and the potential collision would occur on a second side of the vehicle opposite the first side of the vehicle.