Vehicle Switchable Glass Control for Rapid Light Transitions
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Solution Overview
Problem
Existing switchable glass systems in vehicles fail to adaptively adjust transparency in response to rapid changes in ambient light intensity, leading to discomfort and safety hazards for occupants.
Innovation Solution
A method for controlling switchable glass systems in vehicles by acquiring light intensity change information and adjusting transmittance based on predetermined conditions, using electrical signal regulation to match human light adaptation and dark adaptation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If switchable glass uses fixed transmittance adjustment, then control simplicity is maintained, but adaptability to rapid light intensity changes deteriorates
Solution Approach 1:
The patent implements dynamic transmittance adjustment by continuously monitoring light intensity changes and automatically modifying glass transmittance in real-time. The control system transitions from static to dynamic operation, adjusting transmittance based on detected light intensity variations and their rates of change, thereby resolving the contradiction between adaptability and control simplicity.
Solution Approach 2:
The patent employs feedback mechanisms where light intensity sensors continuously detect ambient light conditions and feed this information to the control system. The controller processes this feedback and adjusts the glass transmittance accordingly, creating a closed-loop system that enhances adaptability while maintaining automated control without requiring complex manual intervention.
2Ease of operation
If switchable glass responds rapidly to light intensity changes, then comfort is improved, but visual acuity issues worsen due to mismatched adaptation rates
Solution Approach 1:
The patent dynamically changes the transmittance parameter of the glass based on detected light intensity changes and their rates. By adjusting transmittance parameters in response to environmental conditions, the system improves occupant comfort while maintaining visual acuity stability through controlled parameter transitions that match human adaptation capabilities.
Solution Approach 2:
The patent implements preliminary action by detecting light intensity changes before they cause discomfort and preemptively adjusting glass transmittance. The system monitors light intensity trends and initiates transmittance adjustments in advance, allowing occupants to adapt smoothly to changing lighting conditions without experiencing visual acuity issues.
3Use of energy by moving object
If switchable glass maintains current transmittance, then energy consumption is reduced, but discomfort increases during light transitions
Solution Approach 1:
The patent applies partial action by adjusting glass transmittance only when and to the extent necessary to maintain comfort during light transitions. Rather than continuously adjusting transmittance, the system intervenes selectively during significant light intensity changes, reducing energy consumption while still preventing occupant discomfort during critical transition periods.
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
Reduces discomfort and enhances safety by dynamically adjusting glass transmittance to match ambient light changes, minimizing visual acuity issues during transitions between different lighting conditions.
Implementation Method 1
Switchable glass, also known as atomized glass, electric-controlled glass or intelligent dimming and color-changing glass, may change its light transmittance by regulating an input electrical signal
Data Source
AI summary
A switchable glass system for a vehicle and a method of controlling a switchable glass system are provided. The switchable glass system includes a switchable glass (10) installed on the vehicle. The method includes: acquiring a light intensity change information, where the light intensity change information includes at least one of a light intensity value change or a light intensity change rate; and adjusting a light transmittance of the switchable glass (10) based on a transmittance adjustment information in response to the light intensity change information meeting a predetermined condition. The transmittance adjustment information includes adjusting at least one of a magnitude of the light transmittance of the switchable glass (10) or a change rate of the light transmittance of the switchable glass (10).