Driver Distraction Warning Thresholds for Autonomous Driving
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Solution Overview
Problem
Existing driver warning systems do not account for the activation state of autonomous driving systems, leading to false or immoderate warnings when assessing driver distraction.
Innovation Solution
A driver distraction warning control apparatus that sets different thresholds for gaze areas based on the operational state of the autonomous driving system, including longitudinal and lateral control systems, to reduce false warnings by varying permitted gaze holding times in different driving scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the autonomous driving system is activated and the driver warning system uses the same criteria as manual driving, then the driver distraction warning is consistently applied, but false warnings and immoderate warnings occur reducing driver satisfaction
Solution Approach 1:
The patent applies dynamics by making the warning threshold adjustable based on the autonomous driving system's operational state. When the autonomous driving system is activated, the threshold for gaze area warnings is increased (made less sensitive), whereas when it is inactive, the threshold returns to normal. This dynamic adjustment prevents false warnings during autonomous operation while maintaining appropriate monitoring during manual driving, thus resolving the contradiction between consistent application and driver satisfaction.
2Measurement precision
If the warning threshold for gaze areas is set low to detect distraction accurately, then detection precision improves, but false warnings increase during autonomous driving
Solution Approach 1:
The patent applies parameter changes by modifying the warning threshold parameter based on the operational state of the autonomous driving system. Specifically, when the autonomous driving system is active, the threshold for determining distraction based on gaze area is changed (increased) to prevent false warnings. When the autonomous driving system is inactive, the threshold returns to its original lower value for accurate detection. This conditional parameter adjustment resolves the contradiction between detection precision and warning accuracy.
Data Source
AI summary
The present disclosure relates to a driver distraction warning control apparatus and a driver distraction warning control method. The driver distraction warning control apparatus includes a sensor device that detects gaze of a driver, a setting device configured to divide a virtual area on front of the driver into a plurality of gaze areas, and sets a threshold for each of the gaze areas, a determining device that determines a viewing area corresponding to the driver's gaze direction from among the gaze areas, and a controller that performs driver distraction warning control based on the threshold set for the determined viewing area.