Aerosol Heating Control with Feed-Forward Warm-Up Stability
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Solution Overview
Problem
Aerosol generation devices face challenges in quickly heating aerosol generation articles to enable user inhalation and stabilizing aerosol production, which affects flavor and taste quality.
Innovation Solution
The aerosol generation device employs a control unit that uses feed-forward control during the preparation phase to rapidly heat the aerosol generation article and transitions to feedback control during the use phase, adjusting power supply to maintain stable aerosol production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If high power is supplied to rapidly heat the aerosol generation article, then the time to aerosol readiness is reduced, but aerosol generation becomes unstable
Solution Approach 1:
The control unit performs preliminary heating action in the preparation phase by supplying high power to the load to rapidly increase temperature before aerosol generation begins. This preliminary action reduces the time to readiness while preventing instability during actual use by separating the heating phase from the generation phase.
Solution Approach 2:
The system dynamically adjusts power supply based on operational phase: high power during preparation phase for rapid heating, then transitions to controlled power during use phase for stable generation. This dynamic adjustment resolves the contradiction between speed and stability.
2Reliability
If power supply is controlled to stabilize aerosol generation, then flavor and taste quality is improved, but the time to reach operational temperature increases
Solution Approach 1:
The control unit performs preliminary heating action in the preparation phase by supplying high power to the load to rapidly increase temperature before aerosol generation begins. This preliminary action reduces the time to readiness while preventing instability during actual use by separating the heating phase from the generation phase.
3Speed
If high power is supplied continuously, then heating speed is improved, but energy consumption increases
Solution Approach 1:
The system dynamically adjusts power supply based on operational phase: high power during preparation phase for rapid heating, then transitions to controlled power during use phase for stable generation. This dynamic adjustment resolves the contradiction between speed and stability.
Solution Approach 2:
The control unit implements periodic power supply with distinct phases: preparation phase with high power for heating, and use phase with controlled power for stable generation. This periodic action pattern optimizes both heating speed 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
This approach significantly reduces the time to aerosol readiness and stabilizes aerosol generation, ensuring consistent flavor and taste throughout the heating process.
Implementation Method 1
The load is configured to heat an aerosol generation article, which includes an aerosol-forming substrate configured to hold or carry at least one of an aerosol source and a flavor source, by using power that is supplied from a power source
Implementation Method 2
The control unit is configured to control the power that is supplied from the power source to the load. When starting the supply of power to the load in a non-operation state, or when the load is in a preparation state in which the load cannot generate a predetermined amount or more of aerosols from the aerosol generation article, the control unit is configured to control the power that is supplied from the power source to the load by feed-forward control
Data Source
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AI summary
In the present embodiment, this aerosol generation device is provided with a load and a control unit. The load uses power supplied from a power source to heat an aerosol generation article which includes an aerosol-forming substrate holding or carrying an aerosol source and/or a flavor source. The control unit controls the power supplied from the power source to the load. When the supply of power to the load is started while the load is in a non-operating state or when the load is in a preparing state in which the load cannot generate a predetermined amount or more of an aerosol from the aerosol generation article, the control unit controls the power supplied from the power source to the load by feed-forward control.