Augmented Reality HUD Inter-Vehicle Distance Display Adaptation
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Solution Overview
Problem
Conventional head-up displays (HUDs) fail to effectively display inter-vehicle distance information when the actual distance is shorter than the set distance, and struggle to show this information when a nearby vehicle moves out of the augmented reality display region, making it difficult for drivers to understand the difference and maintain safe driving stability during smart cruise control.
Innovation Solution
A method and apparatus that utilize a front camera, inter-vehicle distance detector, and controller to compare actual and set inter-vehicle distances, adjust the display information based on the available display region, and process perspective information to ensure clear and recognizable display of inter-vehicle distance data, even when the nearby vehicle is outside the display region or moving beyond it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the actual inter-vehicle distance is smaller than the set inter-vehicle distance, then the inter-vehicle distance information cannot be displayed on the augmented reality display region, but the driver needs to understand the distance difference for safe driving
Solution Approach 1:
The patent introduces a second display region (instrument panel or separate display) to complement the first augmented reality display region. When the actual inter-vehicle distance is smaller than the set distance and cannot be displayed in the augmented reality region, the distance information is alternatively displayed in the second display region, providing a dimensional solution to the display space limitation.
2Loss of information
If a nearby vehicle moves beyond the augmented reality display region, then the inter-vehicle distance cannot be displayed, but the driver needs to maintain awareness of vehicles outside the display region
Solution Approach 1:
The patent uses the second display region as an intermediary to display information about vehicles that have moved beyond the augmented reality display region. When a nearby vehicle exits the first display region, the system continues to monitor and display the inter-vehicle distance in the second display region, acting as a mediator that maintains information availability beyond the primary display's physical limits.
3Device complexity
If conventional blinking effect is used to indicate distance difference, then the display method is simple, but drivers cannot clearly understand the difference between actual and set inter-vehicle distance
Solution Approach 1:
The patent employs color changes in the second display region to clearly indicate the difference between actual and set inter-vehicle distances. When the actual distance is smaller than the set distance, the display shows specific color indicators (such as red or yellow warnings) to explicitly communicate the distance discrepancy to the driver, replacing the ambiguous blinking effect with clear visual color coding.
Data Source
AI summary
A method for displaying vehicle information includes: setting a driving velocity and an inter-vehicle distance after activating a smart cruise control function; performing a smart cruise control according to the set driving velocity and the set inter-vehicle distance and displaying smart cruise control-related information in an augmented reality display region located in a front portion of a driver's own vehicle; comparing an actual inter-vehicle distance between the driver's own vehicle and a nearby vehicle to the set inter-vehicle distance during performance of the smart cruise control; determining an information displayable region in the augmented reality display region when the actual inter-vehicle distance is less than the set inter-vehicle distance; and displaying display information corresponding to the set inter-vehicle distance in the information displayable region.