Automatic Driver Assistance Engagement via Risk Assessment
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Solution Overview
Problem
Modern vehicles lack an effective system for automatically engaging driver assistance systems in response to detected risks, such as anomalous events or imminent hazards, to ensure safety and prevent accidents.
Innovation Solution
A vehicle event recorder system that analyzes data from various sensors to detect anomalous events and imminent hazards, triggering a driver assistance system to change its state and modify vehicle performance, such as reducing speed or avoiding collisions, through an automation control component that communicates with a vehicle data server and driving subsystems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a driver assistance system is manually activated, then the system can provide safety features, but the system fails to respond automatically to detected hazards, reducing effectiveness
Solution Approach 1:
The system performs preliminary risk assessment and hazard detection before an accident occurs. The automation control component continuously monitors sensor data and evaluates risks in advance, preparing the driver assistance system to engage automatically when hazards are detected, rather than requiring manual activation at the moment of danger.
Solution Approach 2:
The system implements a feedback loop where sensor data from the vehicle event recorder is continuously analyzed by the automation control component. When the evaluated risk exceeds predetermined thresholds, the system automatically engages the driver assistance system. This closed-loop feedback mechanism ensures the system responds dynamically to actual driving conditions and detected hazards.
2Measurement precision
If the system continuously monitors all sensor data for hazards, then detection accuracy improves, but computational complexity and processing time increase
Solution Approach 1:
The automation control component applies different analysis criteria to different sensor data streams based on their relevance to specific hazard types. Instead of uniformly processing all sensor data with the same complexity, the system selectively evaluates data from sensors most relevant to detected anomalies, reducing overall computational complexity while maintaining high detection accuracy for critical hazards.
Solution Approach 2:
The system performs preliminary filtering and preprocessing of sensor data before detailed hazard analysis. The vehicle event recorder captures and initial-processes sensor data continuously, pre-organizing it for rapid evaluation by the automation control component when hazards are suspected, thereby reducing real-time processing complexity while maintaining detection precision.
Data Source
AI summary
A system for automatic engagement of a driver assistance system comprises an input interface, a processor, and an output interface. The input interface is configured to receive data associated with one or more events. The processor is configured to evaluate the risk associated with the data and to determine that the risk indicates a state change in a driver assistance system is appropriate. The output interface is configured to provide an indication that the state change in the driver assistance system is appropriate.