Driver Presentation Control for Autonomous Driving Changeovers
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Solution Overview
Problem
In autonomous driving systems, drivers performing secondary tasks may not recognize the need to switch back to driving, leading to discomfort and reduced convenience during driving changeovers.
Innovation Solution
A presentation control device and program that determine when to interrupt secondary tasks and change the method of content presentation to inform drivers of the need to switch back to driving, allowing them to recognize and accept the interruption more smoothly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If drivers are allowed to perform secondary tasks during autonomous driving, then driver convenience is improved, but driver awareness of driving changeover needs deteriorates
Solution Approach 1:
The system performs preliminary actions by notifying the driver in advance before interrupting secondary tasks. The notification is displayed before the actual driving changeover occurs, giving the driver time to prepare mentally and physically for the transition, thus maintaining awareness while allowing secondary task performance.
Solution Approach 2:
The notification display serves as an intermediary between the autonomous driving system and the driver. It mediates the transition by providing visual information that bridges the gap between autonomous operation and manual driving, ensuring the driver remains informed without requiring constant attention.
2Reliability
If drivers are interrupted from secondary tasks to switch back to driving, then driving safety is improved, but driver discomfort increases
Solution Approach 1:
The system displays notifications in advance before interrupting the driver from secondary tasks. This preliminary notification reduces the shock of sudden interruption by preparing the driver mentally, thereby maintaining driving safety while reducing discomfort associated with abrupt task switching.
Solution Approach 2:
The notification system dynamically adjusts its behavior based on driving conditions. The notification is displayed at appropriate times when it is safe to do so, and the system monitors whether the driver has acknowledged the notification before proceeding with the driving changeover, creating a flexible and driver-friendly interruption process.
3Loss of information
If the system notifies drivers before interrupting secondary tasks, then driver awareness is improved, but notification timing complexity increases
Solution Approach 1:
The notification system operates autonomously based on pre-set conditions and timing parameters. Once the notification timing and display conditions are configured, the system automatically determines when to notify the driver without requiring complex real-time decision-making, thereby improving driver awareness while managing complexity through automated self-service operation.
Solution Approach 2:
The system incorporates feedback mechanisms to monitor driver responses to notifications. By detecting whether the driver has acknowledged or responded to the notification, the system can adjust its behavior accordingly, ensuring effective communication while simplifying timing control through adaptive feedback-based adjustments.
Data Source
AI summary
An HCU is to be used in a vehicle including an autonomous driving operation, and includes a function of a presentation control device that controls presentation of information to a driver of the vehicle. The presentation control device determines interruption of a second task other than driving permitted to the driver in an autonomous traveling period where the vehicle travels by the autonomous driving operation. Based on the interruption determination of the second task, the HCU changes a provision method of content provided in association with the second task in the autonomous traveling period.