Ceiling Ionized Air Blowing Control for Cabin Comfort
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Solution Overview
Problem
The onboard air conditioning device in PTL 1 does not control ion discharge based on cabin temperature, leading to potential discomfort for vehicle occupants.
Innovation Solution
An ionized air blowing device with a controller that directs ionized air towards seats when cabin temperature is comfortable and towards the ceiling when not, and adjusts based on occupancy and air conditioner mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ion discharge is continuously performed regardless of cabin temperature, then ion supply efficiency is improved, but occupant comfort deteriorates
Solution Approach 1:
The air blower's operation mode is dynamically adjusted based on cabin temperature conditions. When temperature is within the predetermined range, the system operates in seat-directed mode for efficient ion delivery. When temperature exceeds the range, it switches to ceiling-directed mode to prevent discomfort, thus dynamically adapting the system behavior to environmental conditions
Solution Approach 2:
The controller continuously monitors cabin temperature and uses this feedback to adjust the air blower's operation. The temperature sensor provides real-time data to the controller, which then modulates the air blower's direction and intensity accordingly, creating a closed-loop control system that balances ion supply efficiency with occupant comfort
2Productivity
If air blower operates at high intensity to blow ionized air toward seats, then ion delivery effectiveness is improved, but power consumption increases
Solution Approach 1:
Instead of continuously operating at full intensity, the air blower is activated only when cabin temperature is within the predetermined range. This partial action approach delivers ions effectively during appropriate conditions while avoiding unnecessary power consumption during inappropriate conditions, achieving a balance between delivery effectiveness and energy efficiency
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
Efficient ion supply into the cabin while minimizing occupant discomfort, optimizing airflow volume, and reducing power consumption.
Implementation Method 1
an ion generator that generates an ion
Implementation Method 2
an air blower that blows air including the ion into the cabin
Data Source
AI summary
An ionized air blowing device is an ionized air blowing device to be disposed in a ceiling of a cabin of a vehicle, and the ionized air blowing device includes an ion generator that generates an ion, an air blower that blows air including the ion into the cabin, and an ECU that causes the air blower to blow the air preferentially toward a seat in the cabin when a temperature of the cabin is within a predetermined range, and causes the air blower to blow the air toward a space closer to the ceiling than to the seat when the temperature is not within the predetermined range.