Vehicle Cabin AC Lighting Feedback for Temperature Gap Awareness
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Solution Overview
Problem
Existing on-board air conditioning systems do not allow users to intuitively recognize the difference between the desired temperature and the vehicle compartment temperature.
Innovation Solution
An on-board air conditioning system that includes an air conditioner, a controller, illumination light emitters mounted on vehicle doors and a center cluster, and an illumination light controller. The system changes the illumination color based on the difference between the desired temperature and the vehicle compartment temperature, allowing users to intuitively perceive this difference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the air conditioning system only changes lamp emission colors based on temperature regulated air, then the system structure remains simple, but the user cannot intuitively recognize the difference between desired temperature and vehicle compartment temperature
Solution Approach 1:
The system implements feedback by continuously monitoring the vehicle compartment temperature and comparing it with the desired temperature, then using this temperature difference information to control the illumination light emitter. The illumination light controller receives temperature data from the air conditioner controller and adjusts the illumination color accordingly, providing real-time visual feedback to the user about the air conditioning status.
Solution Approach 2:
The system uses color changes of the illumination light emitter to represent different temperature conditions. When the vehicle compartment temperature is lower than the desired temperature by a predetermined degree or more, the light emits in a first color (e.g., blue). When the vehicle compartment temperature is higher than the desired temperature by a predetermined degree or more, the light emits in a second color (e.g., red). This visual color coding allows users to intuitively understand the temperature difference without needing to read numerical values.
2Loss of information
If the system provides detailed temperature monitoring and display, then user awareness of temperature difference improves, but the system complexity and energy consumption increase
Solution Approach 1:
The system applies partial action by selectively activating the illumination light emitter only when the temperature difference exceeds a predetermined threshold. Instead of continuously displaying temperature information or using multiple indicators, the system uses a simplified approach where illumination is triggered only when corrective action may be needed, reducing energy consumption while still providing necessary information to the user.
Data Source
AI summary
An on-board air conditioning system includes at least one illumination light emitter disposed on at least one of a driver seat door, a front passenger seat door, and a center cluster, and an illumination light controller configured to control the at least one illumination light emitter, in which the illumination light controller changes, when a desired temperature for air conditioning differs from a set temperature stored in a memory, the stored set temperature to the desired temperature, causes the at least one illumination light emitter to illuminate in a first color when the vehicle compartment temperature is lower than the stored set temperature by a predetermined degree or more, and causes the at least one illumination light emitter to illuminate in a second color different from the first color when the vehicle compartment temperature is higher than the stored set temperature by the predetermined degree or more.