Aerosol Heater PID Control for Consistent Atomization
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Solution Overview
Problem
Aerosol-generating devices face challenges in maintaining a consistent atomization level during continuous use, leading to an insufficient atomization amount due to temperature fluctuations in the heater.
Innovation Solution
Implementing a proportional integral differential (PID) control method for the heater's power supply, based on an integral control weight determined by the initial temperature of the heater, to maintain a consistent temperature and ensure consistent atomization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the heater temperature is maintained at a high level for continuous smoking, then the atomization amount is sufficient, but the temperature cannot be maintained properly with short inhaling terms
Solution Approach 1:
The system performs preliminary heating to raise the heater temperature to a preheating temperature before actual smoking begins. This preliminary action ensures that when smoking starts, the heater is already at the optimal temperature for sufficient atomization, eliminating the delay and insufficient atomization that would occur with cold-start heating.
Solution Approach 2:
The control system continuously monitors the heater temperature and adjusts the power supply accordingly. When the temperature drops below the preheating temperature during continuous smoking with short intervals, the system automatically increases power supply to restore the temperature, ensuring consistent atomization amount throughout continuous use.
2Quantity of substance
If the heater temperature is rapidly increased to maintain atomization, then the atomization amount is sufficient, but energy consumption increases
Solution Approach 1:
The system performs preliminary heating to raise the heater temperature to a preheating temperature before actual smoking begins. This preliminary action ensures that when smoking starts, the heater is already at the optimal temperature for sufficient atomization, eliminating the delay and insufficient atomization that would occur with cold-start heating.
Solution Approach 2:
The control system continuously monitors the heater temperature and adjusts the power supply accordingly. When the temperature drops below the preheating temperature during continuous smoking with short intervals, the system automatically increases power supply to restore the temperature, ensuring consistent atomization amount throughout continuous use.
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 approach prevents a reduction in atomization amount during continuous use, providing a consistent smoking experience by maintaining the heater's temperature effectively.
Implementation Method 1
a heater for heating an aerosol-generating substrate
Implementation Method 2
a controller for controlling power supplied to the heater through a proportional integral differential (PID) method, based on an integral control weight determined according to an initial temperature of the heater
Data Source
AI summary
An embodiment of the present invention discloses an aerosol-generating device, the device including a heater for heating an aerosol-generating substrate, and a controller for controlling power supplied to the heater through a proportional integral differential (PID) method, based on an integral control weight determined according to an initial temperature of the heater.