ADAS Braking Desensitization on Curved Roads
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Solution Overview
Problem
Advanced driver assist systems (ADAS) generate sensitive warnings in unstable road conditions, particularly when transitioning between straight and curved roads due to transverse vehicle motion, especially with stationary obstacles like guardrails.
Innovation Solution
A vehicle control system that utilizes sensors to recognize target objects and environmental conditions, determining desensitization control points to adjust braking sensitivity based on index values related to steering angle, path curvature, object position, and illumination, preventing unnecessary warnings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ADAS uses sensor data to perform vehicle control for safety, then driving safety is improved, but sensitive warnings are generated unnecessarily in high-curvature road conditions
Solution Approach 1:
The system changes the control parameter (braking sensitivity) based on road curvature conditions. When high curvature is detected through sensor data analysis, the system adjusts the braking control point to reduce sensitivity, preventing unnecessary warnings while maintaining safety in normal conditions
Solution Approach 2:
The braking control point is made dynamic rather than fixed. The system continuously adjusts the braking control point based on real-time road conditions detected by sensors, allowing the control parameter to adapt to changing environmental conditions and vehicle behavior
2Ease of operation
If the ADAS performs vehicle control using sensor data, then driving convenience is improved, but the system generates false warnings during vehicle transverse motion on curved roads
Solution Approach 1:
The system adjusts the braking control sensitivity parameter based on detected road curvature and vehicle motion characteristics, reducing false warnings during normal transverse motion on curved roads while maintaining responsiveness to actual hazards
Solution Approach 2:
The system uses sensor feedback to continuously monitor vehicle behavior and road conditions, adjusting the braking control point based on this feedback to distinguish between normal transverse motion and situations requiring warning
Data Source
AI summary
An autonomous driving vehicle includes a processor. The processor receives at least one sensor information from a plurality of sensors mounted to a host vehicle; recognizes a target object disposed in front of the driving host vehicle based on the received sensor information; compares and analyzes a driving environment condition of a current driving road of the host vehicle with the target object; calculates a desensitization control point corresponding to a compared and analyzed result; and controls a braking state of the host vehicle to be varied based on the calculated desensitization control point.