Vehicle Illumination Control for Lean-Angle Visibility Signaling
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Solution Overview
Problem
The challenge is to enhance the visibility of vehicles, particularly motorcycles, while maintaining a reduced headlamp size, and to adjust road surface drawing patterns based on the vehicle's state to effectively communicate information to other vehicles and pedestrians.
Innovation Solution
A vehicle illumination system comprising a headlamp, a communication lamp, and an illumination control unit that adjusts lighting modes based on the vehicle's state, along with a road surface drawing lamp that forms patterns on the road, using sensors to detect inclination and environmental information to maintain pattern integrity or adjust it accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the headlamp size is reduced in accordance with technological progress and user requests, then the device complexity and material usage are reduced, but the visibility of the motorcycle from other vehicles or pedestrians is lowered
Solution Approach 1:
The illumination system is divided into multiple functional segments: headlamp for forward illumination, communication lamp for visibility and information transmission, and road surface drawing lamp for pattern projection. Each segment serves a specific purpose, allowing the headlamp to be smaller while maintaining overall system effectiveness.
Solution Approach 2:
The system transitions from traditional single-dimension headlamp illumination to multi-dimensional communication by adding vertical communication lamps and road surface pattern projection. This creates multiple layers of visibility (air space communication and road surface communication) that compensate for reduced headlamp size.
2Loss of information
If the lighting mode of the communication lamp is changed depending on vehicle state, then the information transmission to other road users is improved, but the device complexity increases
Solution Approach 1:
The illumination control unit receives feedback from vehicle state sensors (inclination angle, lighting mode, speed) and automatically adjusts communication lamp patterns accordingly. This closed-loop control enables intelligent adaptation without requiring complex manual intervention systems.
Solution Approach 2:
The communication lamp serves multiple functions: it acts as a marker lamp for visibility, a communication device for transmitting vehicle state information, and coordinates with the road surface drawing lamp for enhanced information transmission. This multi-functionality reduces the need for separate dedicated systems.
3Loss of information
If the road surface drawing pattern is adjusted depending on vehicle inclination state, then the accuracy of information communication is improved, but the measurement precision requirements increase
Solution Approach 1:
The system uses inclination angle sensors to detect vehicle lean state and provides feedback to the illumination control unit, which adjusts the road surface drawing pattern accordingly. This real-time feedback mechanism ensures accurate pattern projection despite vehicle dynamics.
Solution Approach 2:
The system changes the projection parameters of the road surface drawing lamp based on detected inclination angle and vehicle state. By dynamically adjusting projection angle, position, and pattern type, the system maintains information accuracy without requiring ultra-precise measurement systems.
4Illumination intensity
If the communication lamp is made visible from ahead of the vehicle, then the visibility from front is improved, but the design aesthetics of the vehicle body may be compromised
Solution Approach 1:
The communication lamp is strategically positioned in the front portion of the vehicle body, integrated into the headlamp assembly or nearby structure. The lamp uses directional illumination and selective visibility design to provide enhanced front visibility while minimizing impact on overall vehicle aesthetics through localized functional enhancement.
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
This solution improves vehicle visibility at night and provides effective communication of the vehicle's state to other road users, ensuring safety and maintaining the vehicle's design aesthetics.
Implementation Method 1
Each of the plurality of light emitting segments includes a light source and a cover member configured to cover the light source and to transmit light from the light source
Data Source
AI summary
A vehicle illumination system provided in a vehicle capable of traveling around a corner by inclining a vehicle body toward a turning direction includes: a headlamp mounted on a front portion of the vehicle; a communication lamp disposed on the vehicle body in a region adjacent to the head lamp so as to be visible from ahead of the vehicle; and an illumination control unit configured to change a lighting mode of the communication lamp depending on a state of the vehicle.