AEROSOL-GENERATING DEVICE AND METHOD FOR CONTROLLING AEROSOL PRODUCTION THEREIN

Claims

1. A method for controlling the production of an aerosol in an aerosol generating device, wherein the device comprises: a heating chamber configured to at least partially accommodate an aerosol generating article containing an aerosol forming substrate; a heating system comprising a heating element that is configured to externally heat the aerosol forming substrate; and a power source for supplying power to the heating system, wherein the method includes controlling the power during heating of the aerosol forming substrate to form an aerosol for inhalation by a user to increase the temperature of the heating element from an initial temperature to a first temperature, wherein said first temperature is maintained constant for a first predetermined period of time, wherein said first temperature is from 180 to 230 °C; and wherein the first predetermined period of time has a duration of from 40 s to 150 s;regulating the temperature of the heating element to a second temperature for a second predetermined period of time, wherein the second predetermined period of time immediately follows the first predetermined period of time, wherein the second predetermined period of time is greater than the first predetermined period of time, and wherein the duration of the second predetermined period of time is from 100 to 280 s; 2. The method of claim 1, wherein adjusting the temperature of the heating element to the second temperature during the second specified period of time includes decreasing the temperature of the heating element from the first temperature.

3. The method according to claim 2, wherein the reduction of the temperature of the heater from the first temperature includes two successive temperature jumps.

4. The method according to claim 3, wherein the temperature of the first temperature jump is lower than the temperature of the second temperature jump.

5. The method according to one of the preceding claims, in which the control of the power supply during heating of the aerosol-forming substrate to form an aerosol for inhalation by the user further comprises regulating the temperature of the heating element so that it is constant and equal to the third temperature during a third predetermined period of time, wherein the third temperature approximately corresponds to the first temperature, and the third predetermined period of time follows the second predetermined period of time.

6. The method according to one of the preceding claims, wherein the power is controlled during heating of the aerosol-forming substrate to form an aerosol for inhalation by the user based on a heating profile of a plurality of heating profiles, wherein each heating profile determines how to adjust the temperature of the heating element during each of the specified periods of time.

7. The method of claim 6 further comprising selecting a heating profile based on the identification of the aerosol generating article.

8. The method according to one of the preceding paragraphs, wherein the power control further includes, in the preheating mode, increasing the temperature of the heating element from the ambient temperature to the initial temperature.

9. The method according to claim 8, wherein the initial temperature is from 140 to 170 °C.

10. An aerosol generating device comprising a heating chamber configured to at least partially accommodate an aerosol generating article comprising an aerosol forming substrate; a heating system comprising a heating element configured to externally heat the aerosol forming substrate; a power source for supplying power to the heating system; and the ability to control the power during heating of the aerosol forming substrate to form an aerosol for inhalation by a user to increase the temperature of the heating element from an initial temperature to a first temperature, wherein said first temperature is maintained constant for a first predetermined period of time, wherein said first temperature is from 180 to 230 °C, and wherein the first predetermined period of time has a duration of from 40 s to 150 s;regulating the temperature of the heating element to a second temperature for a second predetermined period of time, wherein the second predetermined period of time immediately follows the first predetermined period of time, wherein the second predetermined period of time is greater than the first predetermined period of time, and wherein the duration of the second predetermined period of time is from 100 to 280 seconds; 11. An aerosol generating device according to claim 10, wherein the heating element is a resistive heater.

12. A system comprising an aerosol generating device according to one of claims 10 or 11; an aerosol generating article containing an aerosol forming substrate.

13. The system of claim 12, wherein the aerosol-forming substrate comprises one or more aerosol-forming substances, and wherein the aerosol-forming substrate has a total aerosol-forming substance content that is greater than or equal to 30 wt.%.

14. The system according to one of paragraphs 12 or 13, wherein the aerosol-forming substrate is a non-tobacco substrate.

15. The system according to one of claims 12-14, wherein the aerosol-forming substrate is a solid or a gel.