Driver Attention Warning Logic for Autonomous Lane Changes
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Solution Overview
Problem
Existing driving assistance systems face challenges in determining whether a warning is necessary, often issuing unnecessary warnings by detecting the driver's visual observation using vehicle exterior and in-vehicle cameras, particularly when the driver's orientation is not directly forward during lane changes.
Innovation Solution
A driving assistance method and system that acquires driver state information during autonomous driving, issuing warnings only when the driver is not facing forward, and prohibiting warnings during lane changes by determining the driver's orientation relative to the intended lane change direction, using a controller to manage alerts and reduce unnecessary notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system issues warnings when the driver is not facing forward based on face or eye orientation detection, then driver attention can be monitored, but unnecessary warnings are issued during lane changes
Solution Approach 1:
The system dynamically adjusts the warning criteria based on the autonomous driving mode. When lane change is activated, the system temporarily modifies the forward-facing detection parameters to accommodate the driver's natural head orientation toward the side mirror, preventing false warnings during this specific operational state
Solution Approach 2:
The system changes the evaluation parameters for driver orientation based on the current driving mode. During lane changes, the acceptable angular range for driver face orientation is expanded to include side-facing directions, while maintaining strict forward-facing requirements during normal cruising
2Device complexity
If the system uses simple face orientation detection to determine driver attention, then the detection method is simple, but the precision of determining actual visual observation is reduced
Solution Approach 1:
The in-vehicle camera serves multiple functions: it detects face orientation for attention monitoring, tracks eye position for visual observation verification, and monitors overall driver behavior patterns, eliminating the need for separate detection systems for each function
Data Source
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AI summary
Provided is a driving assistance method of, by a controller, acquiring state information of a driver during travelling of autonomous driving and issuing a warning to the driver when the controller determines that the driver is not facing forward based on the state information of the driver. In the driving assistance method, a warning is prohibited when the driver is facing a lane change direction during the travelling of autonomous driving.