Adaptive Heater Preheating for Aerosol Temperature and Current Control
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Solution Overview
Problem
Aerosol-generating apparatuses face inconvenience when a user continues smoking as the heater is preheated to a high temperature, causing discomfort and increased current consumption due to the same preheating profile being used for both initial and continued smoking.
Innovation Solution
The apparatus distinguishes between initial and continued smoking by using different preheating profiles for the heater, adjusting the power supply based on the measured temperature to reduce heat output and optimize energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the heater is preheated to a high temperature using the same preheating profile for both initial and continued smoking, then the heater reaches the target temperature quickly, but the aerosol temperature becomes excessively high causing user discomfort
Solution Approach 1:
The patent applies dynamics by making the preheating profile adjustable based on operating conditions. The controller dynamically selects between a first preheating profile (for initial smoking) and a second preheating profile (for continued smoking) based on the detected heater temperature. This dynamic adjustment allows the system to optimize heating speed when the heater is cold while preventing excessive aerosol temperature when the heater is already hot, thereby resolving the technical contradiction.
2Temperature
If the heater is preheated to a high temperature during continued smoking, then the target temperature is reached, but the current consumption increases
Solution Approach 1:
The patent implements feedback by continuously monitoring the heater temperature through a temperature sensor and using this information to control the power supply to the heater. The controller detects whether the heater temperature meets a predetermined condition and adjusts the preheating process accordingly. This feedback mechanism enables the system to avoid unnecessary high-temperature preheating during continued smoking, thereby reducing current consumption while still achieving the required operating temperature.
3Device complexity
If the same preheating profile is used for initial and continued smoking, then the control system is simple, but the user experience deteriorates due to high aerosol temperature
Solution Approach 1:
The patent applies self-service by enabling the system to automatically distinguish between initial smoking and continued smoking based on heater temperature conditions, without requiring user input or complex external controls. The temperature sensor and controller work together to autonomously select the appropriate preheating profile, thereby improving user experience through adaptive temperature control while maintaining relatively simple system architecture.
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 reduces user discomfort by lowering the aerosol temperature during continued smoking and decreases current consumption by extending the temperature decrease period.
Implementation Method 1
a heater configured to heat at least a portion of an aerosol-generating article
Implementation Method 2
a temperature sensor configured to measure a temperature of the heater
Data Source
AI summary
An aerosol-generating apparatus and a method of controlling the same are provided. The aerosol-generating apparatus includes a heater configured to heat at least a portion of an aerosol-generating article, a temperature sensor configured to measure a temperature of the heater, and a processor configured to control supply of power to the heater according to a first preheating profile defining a preset preheating time and a preset preheating temperature, wherein the processor is further configured to, when the temperature of the heater is higher than or equal to a reference temperature, control supply of power to the heater according to a second preheating profile that is different from the first preheating profile.


