Vehicle Display Layout for Sequenced Self-Driving Action Guidance
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Solution Overview
Problem
Existing display devices for self-driving vehicles only show the next planned action, leaving vehicle occupants uncertain about subsequent actions and potentially causing anxiety.
Innovation Solution
A display device that includes a projection unit on the front windshield, a display unit in the instrument panel, and a control unit that displays the next planned action as a primary action and subsequent actions as secondary actions in a sequence, allowing vehicle occupants to intuitively understand the flow of actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only the next planned action is displayed by the HUD device, then the display information is simple and clear, but the vehicle occupant cannot understand subsequent planned actions which causes anxiety
Solution Approach 1:
The display system is segmented into two independent display devices: the HUD device for displaying the primary planned action (next action) and the meter panel for displaying secondary planned actions (subsequent actions). This segmentation allows each device to have a specialized function, providing complete information without overwhelming either display interface.
Solution Approach 2:
The system transitions from a single-dimensional display (only next action on HUD) to a multi-dimensional display by adding the meter panel as a second display dimension. The meter panel displays additional information about subsequent actions in sequence, creating a hierarchical information structure that reduces occupant anxiety without complicating the primary HUD display.
2Loss of information
If multiple planned actions are displayed on the same device, then all information is available in one place, but the information becomes difficult to distinguish in priority order
Solution Approach 1:
By segmenting the display of planned actions across two devices, the system maintains clear priority differentiation. The HUD device exclusively displays the primary planned action with high visibility, while the meter panel displays secondary actions in sequential order. This segmentation ensures that the most important information is always prominent and easily distinguishable.
Solution Approach 2:
Each display device is assigned a specific quality or function: the HUD device provides high-visibility, glanceable information for the immediate next action, while the meter panel provides detailed sequential information for subsequent actions. This local quality assignment optimizes the user experience by matching display characteristics to information importance.
3Reliability
If the display system shows only current action status, then the display is simple, but the vehicle occupant cannot predict future actions which increases anxiety
Solution Approach 1:
The display system performs a preliminary action by showing the sequence of future planned actions before they are executed. The meter panel displays secondary planned actions in the order they will be performed, allowing the vehicle occupant to predict and mentally prepare for upcoming actions, thereby reducing anxiety and increasing confidence in the self-driving system.
Solution Approach 2:
The system provides feedback to the vehicle occupant about the self-driving system's intended future actions. By displaying the sequence of planned actions on the meter panel, the system creates a communication loop that keeps the occupant informed about the vehicle's decision-making process, building trust and reducing anxiety through transparency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces anxiety in vehicle occupants by providing clear and intuitive display of multiple planned actions, enhancing understanding of the vehicle's self-driving actions and their sequence.
Implementation Method 1
displays information by projecting projection light that is used to display information onto the front windshield glass so that the information appears superimposed on scenery visible in front of the vehicle
Data Source
AI summary
A display control device for a vehicle is provided. The display control device includes a processor configured to display a primary plan on a first display and a secondary plan on a second display. The primary plan is to be performed next after a vehicle action currently being performed, and the secondary plan is to be performed subsequently to the primary plan. The first display may be provided on an upper side of the second display. The first display may be a head-up display, and the second display may be a meter panel.