Title:
HEATER MANAGEMENT
Document Type and Number:
Japanese Patent JP2023158190
Kind Code:
A
Abstract:
To provide an electrically operated aerosol-generating system comprising means of detecting failures such as dry heating in a heater.SOLUTION: A system comprises: an electric heater comprising at least one heating element for heating an aerosol-forming substrate; a power supply; and electric circuitry (109) connected to the electric heater and to the power supply and comprising a memory. The electric circuitry is configured to: measure an initial electrical resistance (R1) of the electric heater; measure a subsequent electrical resistance of the electric heater after the measurement of the initial electrical resistance; determine a difference (AR) between the initial electrical resistance and the subsequent electrical resistance; determine that a failure is present if the determined difference between the initial electrical resistance and the subsequent electrical resistance is greater than a maximum threshold value (ARmax) or less than a minimum threshold value (ARmin) stored in the memory; and, on the basis of whether the presence of the failure is determined, control power supplied to the electric heater and/or provide an indication if the presence of the failure is determined.SELECTED DRAWING: Figure 6
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Inventors:
BILAT STEPHANE
GUILLAUME COLOTTE
GUILLAUME COLOTTE
Application Number:
JP2023146335A
Publication Date:
October 26, 2023
Filing Date:
September 08, 2023
Export Citation:
Assignee:
PHILIP MORRIS PRODUCTS SA
International Classes:
A24F40/53; A24F40/10; A24F40/40; A24F40/42; A24F40/50
Attorney, Agent or Firm:
Shinichiro Tanaka
Hiroyuki Suda
Fumiaki Otsuka
Hiroshi Uesugi
Naoki Kondo
Takeo Nasu
Nobuhiko Suzuki
Hiroyuki Suda
Fumiaki Otsuka
Hiroshi Uesugi
Naoki Kondo
Takeo Nasu
Nobuhiko Suzuki