In-Cabin Plan Display for Autonomous-to-Manual Driving Changes
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Solution Overview
Problem
Existing vehicle display devices do not effectively communicate to occupants when a scheduled autonomous driving operation cannot be performed due to road conditions, leading to a potential misunderstanding about the change in driving mode from autonomous to manual.
Innovation Solution
A vehicle display device that includes a display section inside the vehicle cabin and a control section, which causes the display of an alternative plan that can be implemented instead of the first scheduled plan, between the first and second plans in the display region, allowing occupants to anticipate potential changes in the driving plan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If autonomous driving control is used for scheduled operations, then automation level is improved, but reliability deteriorates when road conditions prevent operation execution
Solution Approach 1:
The system performs preliminary action by displaying alternative plans in advance before the scheduled operation time. When autonomous driving control cannot execute a scheduled operation due to road conditions, the alternative plan (manual driving) is already prepared and displayed, allowing smooth transition without occupant confusion or safety issues.
2Ease of operation
If display information is simplified to show only scheduled operations, then ease of operation is improved, but loss of information increases when plan changes occur
Solution Approach 1:
The system displays alternative plans in advance alongside scheduled operations. This preliminary display of backup options maintains display simplicity while preventing information loss about potential plan changes, allowing occupants to understand both the current schedule and possible alternatives.
Solution Approach 2:
The display uses local quality by differentiating between scheduled operations and alternative plans through visual characteristics. Scheduled operations are displayed with one style while alternative plans are displayed with another style, allowing occupants to quickly distinguish between confirmed and conditional plans without complicating the overall display.
3Reliability
If alternative plans are displayed in advance, then reliability of communication is improved, but device complexity increases
Solution Approach 1:
The control section generates and displays alternative plans in advance by retrieving predetermined manual driving plans from storage. This preliminary preparation ensures reliable communication of potential plan changes without requiring complex real-time processing or additional hardware components.
Solution Approach 2:
The display section serves multiple functions: displaying scheduled operations, displaying alternative plans, and indicating plan changes. By making the display system universal, the patent avoids adding separate dedicated components for each function, thereby managing complexity while achieving reliable communication.
Data Source
AI summary
A vehicle display device includes: a display section that is provided inside a vehicle cabin and that includes, at a display area, a specific display region that displays plural plans scheduled to be implemented with respect to a vehicle, arranged in an order in which the plural plans are scheduled to be implemented; and a control section configured to cause display of, between a first plan, which is one plan among the plural plans, and a second plan, which is scheduled to be implemented next after the first plan, at the specific display region, an alternative plan that has a possibility of being implemented instead of the first plan.