Driver Gaze Feedback Control in Automated Motor Vehicles
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Solution Overview
Problem
Automated motor vehicles face a challenge in ensuring driver confidence during automated driving, as drivers may lack faith in the system's capabilities, leading to suboptimal use and potential safety issues due to distractions or disengagement.
Innovation Solution
An automated motor vehicle equipped with a sensor device to track the driver's viewing direction and a control device that outputs information to an information output device if the frequency of viewing changes exceeds a predetermined limit, using personalized cues like voice, name, and gender to address the driver's confidence and engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver continuously monitors the vehicle system during automated driving, then safety and control are improved, but the driver cannot engage in non-driving activities and the system is not fully exploited
Solution Approach 1:
The system continuously monitors the driver's viewing direction using sensor devices (cameras) and provides feedback through the control device when attention deficits are detected. This closed-loop feedback mechanism ensures safety by alerting the driver when necessary while allowing non-driving activities during normal operation.
Solution Approach 2:
The automated motor vehicle performs self-monitoring of the driver's attention state through integrated sensor devices and control algorithms, eliminating the need for continuous manual monitoring while maintaining safety through automated detection and alerting mechanisms.
2Ease of operation
If the driver engages in non-driving activities during automated driving, then ease of operation is improved, but driver confidence may be insufficient leading to safety issues
Solution Approach 1:
The control device provides targeted feedback to the driver based on monitored viewing behavior, reinforcing driver confidence by acknowledging their attention patterns and providing information about driving functions when attention deficits are detected, rather than simply issuing warnings.
Solution Approach 2:
The system proactively supplies information to the driver before critical situations arise, based on predictive analysis of viewing direction patterns. This preliminary action builds driver confidence by demonstrating system awareness and preparedness.
3Reliability
If the system proactively supplies information to the driver, then driver confidence is improved, but device complexity increases
Solution Approach 1:
The control device performs multiple functions: it monitors viewing direction data from sensor devices, analyzes attention patterns, determines confidence levels, and provides information output. This multi-functionality reduces the need for separate dedicated systems for each function.
Solution Approach 2:
The control device acts as an intermediary between the sensor devices and the driver, processing complex sensor data and translating it into appropriate information outputs that build driver confidence without requiring direct complex interactions between all system components.
4Measurement precision
If the sensor device continuously tracks viewing direction, then driver attention monitoring is improved, but loss of information increases due to processing requirements
Solution Approach 1:
The control device extracts only the essential information from continuous viewing direction data - specifically the frequency of viewing changes - rather than processing and storing all raw sensor data. This extraction approach maintains measurement precision while reducing information processing requirements.
Solution Approach 2:
The system performs continuous monitoring (excessive action) but processes only partial information - focusing specifically on viewing direction frequency patterns relevant to driver confidence assessment - rather than analyzing all possible aspects of driver behavior.
Data Source
AI summary
An automated motor vehicle that has a sensor device which continuously determines a viewing direction of a person sitting on a driver's seat, and a control device connected to the sensor device. The control device determines a frequency of a change in the viewing direction on the basis of the viewing direction determined by the sensor device, compares the frequency with a predetermined limit value, and if the frequency is greater than the predetermined limit value, outputs a control signal to an information output device connected to the control device. The information output device outputs a predetermined item of information to the person sitting on the driver's seat after receiving the control signal.