Vehicle Display Control Using Sequential Markers for ACC Awareness
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Solution Overview
Problem
Existing vehicle display systems using augmented reality-head up displays (AR-HUD) face challenges in intuitively conveying information about a preceding vehicle, especially when it falls outside the display region, leading to difficulty for drivers in determining if adaptive cruise control (ACC) is active.
Innovation Solution
A vehicle display control device that detects a preceding vehicle and displays inter-vehicle marker objects from the host vehicle side toward the preceding vehicle side in the display region, with sequential emphasis display, allowing drivers to intuitively recognize ACC control status and preceding vehicle information regardless of its position within the display region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a dot or the like is displayed at the vehicle width direction outside edge of the display region to indicate ACC control, then ACC control status can be indicated, but the preceding vehicle and the indicator are separated making it difficult for occupants to intuitively understand the relationship
Solution Approach 1:
The display is segmented into multiple inter-vehicle marker objects arranged in sequence from the host vehicle toward the preceding vehicle. This segmentation allows the system to maintain visual connection between the indicator and the preceding vehicle even when the vehicle is outside the display region, resolving the contradiction between indicating ACC status and maintaining intuitive understanding.
Solution Approach 2:
The patent transitions from a single dot indicator to multiple marker objects arranged in a spatial sequence that extends beyond the display region boundaries. By projecting markers in a direction toward the preceding vehicle and applying sequential emphasis, the system creates a dimensional extension that maintains the visual relationship between indicator and target vehicle.
2Measurement precision
If the display method is switched based on whether the preceding vehicle is within the display region, then display accuracy can be improved, but the control complexity increases due to the need to determine vehicle position
Solution Approach 1:
The same inter-vehicle marker object display format is used universally regardless of whether the preceding vehicle is within or outside the display region. This multi-functional approach eliminates the need for conditional switching logic while maintaining accurate representation of vehicle position and ACC status.
3Ease of operation
If multiple inter-vehicle marker objects are displayed from the host vehicle side toward the preceding vehicle side, then intuitive awareness of preceding vehicle information is improved, but the display complexity increases
Solution Approach 1:
Sequential emphasis display is applied periodically to the inter-vehicle marker objects, highlighting them in sequence from the host vehicle toward the preceding vehicle. This periodic emphasis mechanism provides intuitive information about vehicle position and ACC status while using simple on/off timing control rather than complex display logic.
Data Source
AI summary
A vehicle display control device includes a memory and a processor coupled to the memory. The vehicle display control device is configured such that the processor controls a vehicle display device for displaying an image on a display region so as to be superimposed on a portion of a view ahead of a vehicle. The processor is configured so as to detect a preceding vehicle traveling at a vehicle front side of a host vehicle, and in cases in which the preceding vehicle has been detected, causes an image that includes a plurality of inter-vehicle marker objects from the host vehicle side toward the preceding vehicle side to be displayed in the display region, and causes sequential emphasis display of the plurality of inter-vehicle marker objects in sequence from the host vehicle side toward the preceding vehicle side.