External Vehicle Notification System with Projector and Reflector
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Solution Overview
Problem
Existing external vehicle notification systems, such as turn signal guides and backward guides, face limitations in visibility, single-use functionality, and inability to provide diverse external notification information, which hampers safe driving and marketability.
Innovation Solution
An external vehicle notification information system utilizing a projector divided into sections for rear, number, and driving information, with a reflector and lens configuration for enhanced visibility, and a projection controller incorporating voice recognition and multimedia modules for diverse display and interlocking with vehicle systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If turn signal guide and backward guide are used as external display, then driving state information can be notified to nearby vehicles, but visibility is insufficient during daytime
Solution Approach 1:
The patent combines multiple notification functions (turn signal guide, backward guide, and new projection display) into a single integrated external notification system. The projection display merges with existing lighting structures to provide both high visibility during daytime and nighttime operation, resolving the contradiction between notification reliability and visibility across different lighting conditions.
Solution Approach 2:
The external notification system is designed to perform multiple functions: traditional turn signal guidance, backward guidance, and new projection-based information display. This multi-functional approach allows the system to maintain notification reliability while providing enhanced visibility through diverse display modes that can adapt to different driving scenarios and environmental conditions.
2Ease of manufacture
If traditional lighting-based external display is used, then simple notification is achieved, but external notification information is limited to single use
Solution Approach 1:
The projection display unit is designed as a multi-functional component that can display various types of information including turn signals, backward guidance, and additional projected information. This universality allows the system to expand notification information diversity while maintaining ease of manufacture through a standardized projection mechanism that can be programmed with different display patterns.
Solution Approach 2:
The system transitions from static lighting-based notification to dynamic projection-based notification. The projection display can dynamically adjust its content, intensity, and patterns based on driving conditions, providing versatile information delivery while maintaining system simplicity through programmable control logic.
3Device complexity
If single-type technology is used for external display, then implementation is simple, but additional external notification information cannot be provided
Solution Approach 1:
The patent merges the projection display technology with the existing external notification system, combining simple single-type technology with advanced projection capabilities. This integration allows additional notification information to be provided without significantly increasing overall system complexity, as the projection unit shares control and power infrastructure with existing components.
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
The system ensures stable and safe driving by providing diverse external information to nearby vehicles, enhancing visibility and marketability, and allowing for various display modes and expansions, including voice commands and smartphone integration, while meeting regulatory requirements.
Implementation Method 1
a projector divided into phrases and figures and illuminating generated information using a light source
Implementation Method 2
a lens transmitting the information
Implementation Method 3
a reflector reflecting partial information of the information to the lens
Data Source
AI summary
An external vehicle notification information system may include a projector illuminating generated information using a light source, a lens transmitting the information, a reflector reflecting partial information of the information toward the lens, and a screen displaying the partial information transmitted from the lens.