Vehicle Virtual Image Display Interruption Control

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Solution Overview

Problem

Conventional vehicle navigation systems display virtual images that can overlap with obstacles, leading to potential misunderstandings for occupants, as the images are not effectively interrupted when accurate superimposition is difficult or impossible.

Innovation Solution

A display control device that determines whether predetermined interruption conditions are met, such as vehicle stop, poor positioning signal reception, or deviation from the planned route, and interrupts the virtual image display to prevent misinterpretation by the occupant.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the virtual image display is continuously shown to provide navigation information, then the information delivery is maintained, but the driver may experience confusion or discomfort when the image does not accurately superimpose on the real-world target

Engineering Contradiction:

Improveaccuracy of superimpositionVSAvoidinterruption of navigation information display

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The system continuously monitors superimposition accuracy and uses this feedback to control display interruption. When superimposition accuracy falls below a threshold, the display is interrupted; when accuracy improves, display resumes. This closed-loop feedback mechanism ensures reliable information delivery only when spatial accuracy is maintained.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The display state dynamically transitions between on and off based on real-time superimposition conditions. The system adapts the display behavior to current driving conditions and positioning accuracy, rather than maintaining a static display state, thereby preventing confusion during inaccurate superimposition while maintaining information flow when accurate.

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If the virtual image display is interrupted when superimposition is inaccurate, then driver confusion is reduced, but the navigation information delivery is disrupted

Engineering Contradiction:

Improvedriver confusionVSAvoidinterruption duration

Core Design Contradiction:

Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The system employs periodic monitoring of superimposition accuracy and periodic evaluation of interruption conditions. Rather than continuous interruption, the display is periodically reassessed, and interruption occurs only when conditions persistently indicate inaccuracy, thereby minimizing unnecessary display loss while maintaining safety.

Inventive Principle:

Principle #19Periodic action

3Object-affected harmful factors

If the display position is displaced to avoid overlapping obstacles, then the information does not obscure real objects, but the virtual image may no longer accurately superimpose on the intended superimposition target

Engineering Contradiction:

Improveobstacle obscurationVSAvoidsuperimposition accuracy

Core Design Contradiction:

Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The system extracts the navigation information from its original superimposition position when obstacle overlap is detected, relocating it to an alternative display position. This separation allows the information to avoid obscuring obstacles while the system independently manages the superimposition accuracy through monitoring and conditional interruption.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS11367417B2Display control device and non-transitory tangible computer-readable medium therefor

Publication Date: 2022.06.21 DENSO CORP

AI summary

A display control device for a vehicle to control a display of a virtual image to be superimposed on a superimposition target in a foreground of an occupant includes: a condition determination unit that determines whether a predetermined interruption condition is satisfied; and a display control unit that interrupts the display of the virtual image when the condition determination unit determines that the interruption condition is satisfied.