Vehicle Display Cues for Staged Lane Change Progress
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Solution Overview
Problem
Existing vehicle display systems fail to convey the progress of a lane change in stages, making it difficult for occupants to understand the process, especially during autonomous driving.
Innovation Solution
A vehicle display device that identifies traffic lanes and the vehicle's position, sets a planned lane change destination, and displays a direction image indicating the vehicle's progress, altering the direction based on its relative position to the planned position, allowing the occupant to perceive the lane change in stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple arrow-shaped progress-direction mark is displayed to indicate lane change direction, then the display is simple and easy to understand, but the progress of the lane change cannot be conveyed in stages
Solution Approach 1:
The display is segmented into multiple functional elements: a static arrow-shaped progress-direction mark indicating the target lane, and dynamic progress indication marks (such as moving dots or expanding circles) that segment the lane change process into discrete stages. This segmentation allows the system to convey both the final destination and the current progress stage separately, resolving the contradiction between simplicity and information completeness.
Solution Approach 2:
The display transitions from a static arrow mark to a dynamic system where progress indication marks move, expand, or change intensity based on the vehicle's position during the lane change. This dynamics principle allows the same display element to convey both directional information and progress stage information, maintaining ease of understanding while providing staged progress feedback.
2Loss of information
If the direction image is altered chronologically to show progress toward the planned position, then the lane change progress can be conveyed in stages, but the display complexity increases
Solution Approach 1:
The patent merges the directional indication function and progress indication function into a single integrated display system. The arrow-shaped mark serves dual purposes: indicating the target lane direction and serving as a reference frame for the progress indication marks. This merging reduces overall display complexity while providing staged progress information.
Solution Approach 2:
Different parts of the display have different functions and visual characteristics. The arrow-shaped progress-direction mark maintains a simple, static form for ease of understanding, while localized progress indication marks (placed along the lane change path) provide detailed staged progress information. This local quality differentiation allows complex progress tracking without overwhelming the overall display.
3Loss of information
If multiple display elements are used to show staged progress, then the lane change process can be conveyed in detail, but the ease of understanding for the occupant decreases
Solution Approach 1:
The progress information is conveyed by adding a temporal dimension to the spatial display. Progress indication marks are positioned along the lane change path in the spatial dimension, while their activation sequence, movement speed, or intensity variations add a temporal dimension that naturally indicates progress stages. This dimensional approach provides detailed progress information in an intuitive, easy-to-understand manner.
Data Source
AI summary
A vehicle display device configured to display a predetermined image on a display region depicting a scene ahead of a vehicle, the vehicle display device including memory and a processor connected to the memory. The processor is configured to identify a traffic lane ahead of the vehicle, identify a position of the vehicle with respect to the traffic lane, set a planned position planned to be a lane change destination based on the identified position of the vehicle, and when the vehicle is to change lanes, display a direction image indicating a direction of progress of the vehicle on the display region, and alter a direction indicated by the direction image based on a relative positional relationship of the vehicle with respect to the planned position.