Vehicle Sensor Control for Emergency Reaction Optimization
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Solution Overview
Problem
Current vehicle systems, especially those at automation levels above 3, face challenges in managing emergency situations effectively, as they often rely on human intervention for fallback, and emergency braking can increase accident risk on high-speed roads, particularly when stationary vehicles or impaired sensors are involved.
Innovation Solution
A method where a control unit analyzes sensor data to detect emergency situations, prioritizes relevant sensors, and reduces the performance or scanning range of uninvolved sensors to accelerate reaction times, allowing for evasive maneuvers instead of full braking, thereby minimizing accident risk by focusing computing resources on critical sensors and maintaining safety standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the vehicle carries out full braking operations in emergency situations, then the reaction time is shortened, but the accident risk increases on high-speed roads
Solution Approach 1:
The patent dynamically adjusts the vehicle's reaction strategy based on real-time sensor data and situation analysis. Instead of always applying full braking, the control unit selects from multiple reactive actions (braking, evasive maneuvers, lane changes) depending on the specific emergency context, thereby optimizing both response speed and safety outcomes
Solution Approach 2:
The system changes operational parameters by adjusting sensor performance levels and weighting based on the detected emergency situation. Sensors involved in detecting the emergency are operated at full performance while uninvolved sensors are operated at reduced performance, allowing the system to accelerate processing of critical data without completely shutting down other sensing functions
2Measurement precision
If all sensors are operated at full performance for comprehensive environment monitoring, then the measurement precision is improved, but the processing time increases in emergency situations
Solution Approach 1:
The patent applies local quality by differentiating sensor operations based on their relevance to the detected emergency. Sensors directly involved in detecting the emergency situation are maintained at full performance and scanning range, while sensors not involved in the emergency detection are operated at reduced performance and scanning range, optimizing resource allocation for critical functions
Solution Approach 2:
The sensor system is segmented into two functional groups: sensors involved in emergency detection and sensors not involved. This segmentation allows independent control of performance levels for each group, enabling the system to prioritize processing of critical sensor data while maintaining reduced operation of non-critical sensors to accelerate overall response time
Data Source
AI summary
A method for selecting and executing at least one reactive action of a vehicle includes a control unit receiving sensor data from a vehicle sensor system; detecting an emergency situation based on the sensor data; performing an evaluation; and selecting and implementing a reactive action for minimizing an accident risk of the vehicle based on the evaluation, where, in the evaluation, sensors that are uninvolved in the detection of the emergency situation are not taken into account or are taken into account at a lower weighting, are operated at a reduced performance, and/or are operated with a reduced scanning range. In addition, a control unit, computer program, and machine-readable memory medium can be provided for implementing the method.