Cabin Acceleration Display Layout for Shared Vehicle Motion Awareness
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Solution Overview
Problem
Existing vehicle display systems require occupants to focus on the driver's seat to intuitively understand vehicle movements, which is inefficient and can lead to confusion during autonomous driving.
Innovation Solution
A vehicle display control device that predicts acceleration directions based on planned travel paths, periphery information, and acceleration sensor data, displaying these directions at various interior trim members and display screens within the cabin, including windshield and side glasses, using light patterns and arrows to convey the information intuitively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If acceleration display is shown at the driver seat vicinity (instrument panel), then the driver can understand vehicle movements, but other occupants cannot intuitively understand vehicle movements without paying attention to the driver seat
Solution Approach 1:
The display system is segmented into multiple independent display portions distributed throughout the vehicle cabin (instrument panel, windshield, side windows, rearview mirror). Each segment can independently display acceleration information, allowing different occupants to access information at their respective locations without needing to look at the driver seat.
Solution Approach 2:
The display system transitions from a single-location display (driver seat vicinity only) to multi-dimensional distribution throughout the cabin space. By placing displays at various heights, depths, and angular positions (windshield, side windows, rearview mirror), the system makes acceleration information accessible from multiple spatial perspectives simultaneously.
2Reliability
If acceleration information is displayed only at the driver seat, then the driver receives feedback, but other occupants experience confusion and motion sickness
Solution Approach 1:
The system predicts future acceleration directions based on planned travel paths and periphery information before the acceleration actually occurs. By displaying this predicted acceleration information in advance at multiple locations, occupants can mentally prepare for upcoming movements, preventing the disorientation and motion sickness that result from unexpected accelerations.
Solution Approach 2:
The system provides continuous acceleration feedback to all occupants through multiple display channels. By showing actual and predicted acceleration directions at various cabin locations, the system creates a feedback loop that helps occupants understand vehicle movements, reducing the harmful effects of motion sickness and confusion.
3Loss of information
If multiple display portions are used throughout the cabin, then all occupants can see acceleration information, but the device complexity increases
Solution Approach 1:
The display system uses universal display components (such as LED or LCD elements) that can be integrated into multiple different locations (instrument panel, windshield, side windows, rearview mirror). These same-type components serve multiple functions: displaying acceleration information to drivers, passengers, and rear occupants simultaneously, thereby reducing overall system complexity through component standardization.
Solution Approach 2:
The system merges the acceleration display function with existing vehicle structures and components. For example, acceleration information is displayed on the windshield and side windows that already exist as structural elements, and integrates with the instrument panel and rearview mirror. This combining approach adds display functionality without requiring completely separate, complex display systems.
Data Source
AI summary
A vehicle display control device includes: an acceleration prediction section that predicts a direction of an acceleration acting on a vehicle based on information including at least one of: information regarding a planned travel path of the vehicle, information acquired from a periphery information detection sensor that detects information regarding a vehicle periphery, or information acquired from an acceleration sensor that detects an acceleration of the vehicle; and a display control section that, in a case in which an acceleration predicted by the acceleration prediction section is greater than a predetermined threshold, displays a direction of the predicted acceleration at a display portion in a vehicle cabin.