Aerosol Heating Control Using Turn-Off Duration for Taste Consistency
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Solution Overview
Problem
Existing aerosol generating devices face a cost increase due to the inclusion of temperature sensing elements to maintain consistent aerosol taste between hot and cold states, which complicates manufacturing.
Innovation Solution
A control method that determines the turn-off duration of the device to identify whether it is hot or cold and adjusts preheating energy based on this duration to reach an optimal taste temperature without a temperature sensor, using a preheating duration and power to heat the aerosol generating product.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temperature sensing element is added to determine device state and control heating, then aerosol taste consistency is improved, but manufacturing cost increases
Solution Approach 1:
The patent removes the temperature sensing element from the device structure and extracts the temperature detection function to a mobile terminal application. The controller calculates turn-off duration and determines preheating energy without direct temperature sensing, thereby eliminating the costly sensor component while maintaining aerosol taste consistency through algorithmic control based on usage patterns.
Solution Approach 2:
The patent replaces the physical temperature sensing mechanism with a computational approach using turn-off duration data. The controller uses timing information and pre-stored mapping relationships to determine appropriate preheating energy, substituting mechanical/thermal sensing with electronic timing and software-based decision logic.
2Reliability
If a temperature sensing element is added to control heating, then aerosol taste consistency is improved, but device complexity increases
Solution Approach 1:
The temperature detection functionality is extracted from the hardware structure and relocated to the software/firmware layer. The controller no longer requires physical temperature sensors but instead uses turn-off duration measurements combined with pre-stored mapping relationships to determine heating parameters, simplifying the device structure.
Solution Approach 2:
The controller performs self-diagnosis and self-adjustment by monitoring its own operational state (turn-off duration) and automatically determining appropriate preheating energy levels. The system uses its inherent timing capabilities to assess device temperature state without external sensing components.
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 method ensures consistent aerosol taste by adjusting preheating energy based on turn-off duration, reducing the need for temperature sensors and lowering manufacturing costs.
Implementation Method 1
The heating element is configured to heat a cigarette-shaped aerosol generating product inserted into the device, thereby heating and volatilizing some active substances in the aerosol generating product to generate an aerosol
Implementation Method 2
heating and volatilizing some active substances in the aerosol generating product to generate an aerosol
Data Source
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AI summary
This application provides a control method of an aerosol generating device and an aerosol generating device. The aerosol generating device includes a heating element. The heating element is configured to heat an aerosol generating product to generate an aerosol. The control method includes: turning on the aerosol generating device; determining a turn-off duration of the aerosol generating device, where the turn-off duration is a time interval from a previous turn-off moment to a current turn-on moment of the aerosol generating device; and determining, based on the turn-off duration, a preheating energy of the aerosol generating device, and controlling the heating element to output the preheating energy, to enable the aerosol generating device to reach a predetermined target temperature. This resolves a problem that there is a difference between an aerosol taste of the aerosol generating device when the device is turned on in a hot state and an aerosol taste of the aerosol generating device when the device is turned on in a cold state.