Vehicle Display Handover Cues for Autonomous-to-Manual Driving
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Solution Overview
Problem
Existing driving assistance devices and autonomous-driving control devices struggle to ensure that drivers are fully aware and prepared to take control of a vehicle when switching from autonomous driving mode to manual driving mode, leading to potential safety issues.
Innovation Solution
A display control device and method that utilize two displays within a vehicle to provide specific information. Before completing the switch from autonomous driving mode to manual driving mode, the first display shows information indicating the mode switch and directs the user's attention to the second display, which displays information essential for manual driving, such as navigation and vehicle status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single display is used to show mode switch information and driving information, then the device complexity is reduced, but the driver's awareness and preparation for manual driving is insufficient
Solution Approach 1:
The patent divides the display system into two separate displays: a first display (HUD) for showing mode switch information and a second display for showing driving information. This segmentation allows each display to be optimized for its specific function, improving driver awareness without requiring a single complex display system.
Solution Approach 2:
The patent utilizes different spatial dimensions and display locations (HUD in the driver's field of view versus a secondary display) to present information. This dimensional approach allows simultaneous presentation of multiple information types without competing for the same visual space, enhancing comprehension during mode transition.
2Reliability
If mode switch information is provided without directing attention to driving information, then the information transmission is simple, but the driver's comprehension and preparation for manual driving is insufficient
Solution Approach 1:
The patent implements a feedback mechanism where the first display (HUD) not only shows mode switch information but also actively directs the driver's attention to the second display where comprehensive driving information is presented. This feedback loop ensures the driver processes both the mode change notification and the associated driving information.
Solution Approach 2:
The system performs preliminary action by providing mode switch information and directing attention to driving information before the actual manual driving mode engagement. This advance notification and guidance allow the driver to mentally prepare and understand the driving context before taking control.
Data Source
AI summary
A display control device performs display control on the displays of a vehicle. The display control device includes an obtainer and a display controller. The obtainer obtains switching information indicating that switching between driving modes including an autonomous driving mode and a manual driving mode is to be performed in the vehicle. When the switching information indicates that first switching which is switching from the autonomous driving mode to the manual driving mode is to be performed, the display controller causes, before completion of the first switching, (i) one of the displays (first display) to display first information indicating that the first switching is to be performed and third information indicating that another display (second display) is displaying second information for assisting the user of the vehicle in driving in the manual driving mode and (ii) the second display to display the second information.