Aerosol-generating device comprising multiple sensors
AssigneePhilip Morris Products S.A.
InventorsRui Nuno Batista, Chiara Fasciani
Life of this patent
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Abstract
An aerosol-generating device is provided, including: an air inlet; an air outlet; an air flow passage extending in a first direction between the air inlet and the air outlet; a heating element in the air flow passage configured to heat an aerosol-forming substrate; a first temperature sensor configured to measure a first temperature at a first position along the air flow passage; a second temperature sensor spaced apart in the first direction from the first sensor configured to measure a second temperature at a second position along the air flow passage; and a controller configured to control an operating parameter of the aerosol-generating device based on the measured first temperature and the measured second temperature.
Claims17
An aerosol-generating device, comprising:
- an air inlet;
- an air outlet;
- an air flow passage extending in a first direction between the air inlet and the air outlet;
- a heating element in the air flow passage;
- a first temperature sensor configured to measure a first temperature at a first position along the air flow passage, wherein the first position is a position at the heating element and the first temperature is a temperature of the heating element at the first position;
- a second temperature sensor spaced apart in the first direction from the first sensor configured to measure a second temperature at a second position along the air flow passage, wherein the second position is a position downstream of the heating element and the second temperature is an ambient temperature of the air flow passage at the second position;
- a third temperature sensor configured to measure a third temperature at a third position along the air flow passage, wherein the third position is a position upstream of the heating element and the third temperature is an ambient temperature of the air flow passage at the third position;
- and
- a controller configured to control an operational parameter of the aerosol-generating device based on the measured first temperature, the measured second temperature, and the measured third temperature.
An aerosol-generating device, comprising:
- an air inlet;
- an air outlet;
- an air flow passage extending in a first direction between the air inlet and the air outlet;
- a heating element in the air flow passage configured to heat an aerosol-forming substrate;
- a first temperature sensor configured to measure a first temperature at a first position along the air flow passage;
- a second temperature sensor spaced apart in the first direction from the first sensor configured to measure a second temperature at a second position along the air flow passage;
- a controller configured to control an operational parameter of the device based on the measured first temperature and the measured second temperature;
- a liquid storage portion comprising the aerosol-forming substrate;
- and
- a pump configured to pump the aerosol-forming substrate from the liquid storage portion to the heating element,
- wherein the operational parameter of the aerosol-generating device comprises a flow rate of the aerosol-forming substrate from the liquid storage portion to the heating element, and
- wherein the controller is further configured to control the flow rate of the aerosol-forming substrate based on the measured first temperature and the measured second temperature.
A method of controlling an aerosol-generating device, the aerosol-generating device comprising a heating element in an air flow passage extending in a first direction, the method comprising:
- measuring a first temperature at a first position along the air flow passage, wherein the first position is a position at the heating element and the first temperature is a temperature of the heating element at the first position;
- measuring a second temperature at a second position along the air flow passage, wherein the second position is spaced apart in the first direction from the first position, wherein the second position is a position downstream of the heating element, and the second temperature is an ambient temperature of the air flow passage at the second position;
- measuring a third temperature at a third position along the air flow passage, wherein the third position is a position upstream of the heating element and the third temperature is an ambient temperature of the air flow passage at the third position;
- and
- controlling an operational parameter of the device, based on the measured first temperature, the measured second temperature, and the measured third temperature, the operational parameter being a parameter that affects operation of one or more components of the aerosol-generating device.
A method of controlling an aerosol-generating device, the aerosol-generating device comprising a heating element in an air flow passage extending in a first direction, a liquid storage portion comprising an aerosol-forming substrate, and a pump configured to pump the aerosol-forming substrate from the liquid storage portion to the heating element, the method comprising:
- measuring a first temperature at a first position along the air flow passage;
- measuring a second temperature at a second position along the air flow passage, wherein the second position is spaced apart in the first direction from the first position;
- and
- controlling an operational parameter of the device, based on the measured first temperature and the measured second temperature, wherein the operational parameter of the device comprises a flow rate of the aerosol-forming substrate from the liquid storage portion to the heating element, and wherein the controlling the operational parameter of the device comprises controlling the flow rate of aerosol-forming substrate based on the measured first temperature and the measured second temperature.
Dependencies are inferred from the claim text.