Driver Notification Intervals for Automated Driving Readiness
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Solution Overview
Problem
Existing automated driving systems require constant monitoring of drivers to maintain a driving preparation state, which can limit secondary activities and increase costs, and there is a need to prompt drivers to improve their driving characteristics during automated driving.
Innovation Solution
A vehicle notification device that notifies drivers of hands-on and eyes-on requests at calculated intervals based on their driving characteristics, allowing them to maintain a driving preparation state without continuous monitoring, and encourages improved driving habits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant monitoring of the driver is implemented during automated driving, then the driving preparation state can be maintained, but the cost of monitoring increases and secondary activities are limited
Solution Approach 1:
The notification device implements periodic notifications to the driver at calculated intervals instead of continuous monitoring. The control unit calculates an appropriate notification interval based on driving conditions and sends notifications periodically, allowing the driver to maintain awareness of driving readiness without constant monitoring intervention.
Solution Approach 2:
The system enables the driver to self-manage their driving preparation state through periodic self-assessment notifications. Instead of continuous external monitoring, the driver is prompted at intervals to self-evaluate their readiness to resume driving, reducing the need for complex monitoring infrastructure.
2Reliability
If constant monitoring of the driver is implemented during automated driving, then the driving preparation state can be maintained, but secondary activities are limited
Solution Approach 1:
By replacing continuous monitoring with periodic notifications, the driver gains flexibility to engage in secondary activities between notification intervals. The driver can perform non-driving tasks while being periodically reminded to assess their driving readiness, thus maintaining reliability without restricting versatility.
3Reliability
If notification interval is shortened to maintain driving preparation state, then driver readiness is improved, but driver attention is increased
Solution Approach 1:
The control unit dynamically adjusts the notification interval parameter based on driving conditions, vehicle state, and driver behavior patterns. By optimizing this time parameter, the system maintains driver readiness through appropriately spaced notifications without excessive frequency that would consume driver attention.
Data Source
AI summary
A vehicle notification device is applied to an automated driving vehicle. The vehicle notification device includes one or more processors. The one or more processors are configured to execute a notification process of notifying a driver of at least eyes-on request out of hands-on request and the eyes-on request every time a notification interval elapses. The one or more processors are also configured to calculate the notification interval based on driving characteristic information of the driver.