Vehicle Collision Protection System Dynamic Fire Interval Adjustment
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Solution Overview
Problem
Existing collision protection systems in vehicles often activate protection means unnecessarily, leading to costly repairs and user dissatisfaction, as they lack the ability to accurately assess the probability of a vulnerable road user's presence in real-time traffic situations.
Innovation Solution
A method that determines road information objects using sensors and infrastructure-2-vehicle systems to adjust the fire interval of an evaluation algorithm, ensuring that protection means are activated only when necessary, by considering factors like road signs, markings, and traffic conditions to optimize sensor sensitivity and reduce unnecessary activations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the protection means are activated based on detected contact only, then the system ensures protection of vulnerable road users, but the system activates protection means unnecessarily leading to costly repairs and user dissatisfaction
Solution Approach 1:
The system performs preliminary assessment of the traffic situation by detecting road information objects (pedestrian crossings, zebra crossings, traffic signs) before the collision occurs. This preliminary detection allows the system to predict the presence of vulnerable road users and adjust the fire interval accordingly, preventing unnecessary activations while ensuring protection when needed.
Solution Approach 2:
The fire interval is made dynamic rather than fixed. The system continuously adjusts the fire interval based on real-time detection of road information objects and current traffic conditions. This dynamic adjustment allows the system to adapt its sensitivity to match the actual risk level, reducing unnecessary activations in low-risk areas while maintaining high sensitivity in high-risk zones.
2Ease of operation
If the fire interval is fixed, then the system operation is simple, but the system cannot adapt to different traffic situations and activates protection means unnecessarily
Solution Approach 1:
The fire interval transitions from a static fixed value to a dynamic adjustable parameter. The system automatically modifies the fire interval based on detected road information objects and traffic conditions, enabling adaptation to different situations without requiring complex manual configuration or sacrificing operational simplicity.
Solution Approach 2:
The system performs self-adjustment of the fire interval based on its own sensor inputs and environmental detection. The collision protection system autonomously evaluates traffic conditions and modifies its parameters without external intervention, maintaining ease of operation while achieving high adaptability to varying traffic situations.
3Loss of information
If historical data is used for activation decisions, then the system has a basis for judgment, but the system cannot consider present traffic situations accurately
Solution Approach 1:
The system performs preliminary detection of road information objects and traffic conditions before collision occurs. By detecting current environmental factors (pedestrian crossings, traffic signs, road markings) in real-time, the system supplements historical data with present situation information, enabling accurate assessment of current traffic conditions rather than relying solely on historical patterns.
Solution Approach 2:
The system continuously receives feedback from sensors detecting current traffic conditions and road information objects. This real-time feedback loop allows the system to compare present situations with historical data, adjusting the fire interval based on actual current conditions rather than relying exclusively on historical averages, thereby improving measurement precision for present situation assessment.
Data Source
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AI summary
The present disclosure relates to a method for setting a collision protection system (12) of a vehicle (10), the method comprising: a) determining a road information object (16, 18) in a selectable region (20) in front of the vehicle (10), b) determining a living being probability based on the road information object (16, 18), c) adjusting a selectable fire interval of an evaluation algorithm of the collision protection system (12) utilizing the determined living being probability, the fire interval being used for activating a protection means (40, 42) of the collision protection system (12). In particular, the method may be used for setting a collision protection system, wherein the living being is a vulnerable road user, the living being probability is a person probability and the protection means is a vulnerable road user protection means. The disclosure further relates to the collision protection system (12).