CN116602460A - Control method for aerosol-generating device and aerosol-generating device - Google Patents
Control method for aerosol-generating device and aerosol-generating device Download PDFInfo
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- CN116602460A CN116602460A CN202310499555.4A CN202310499555A CN116602460A CN 116602460 A CN116602460 A CN 116602460A CN 202310499555 A CN202310499555 A CN 202310499555A CN 116602460 A CN116602460 A CN 116602460A
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000010438 heat treatment Methods 0.000 claims abstract description 194
- 239000000443 aerosol Substances 0.000 claims abstract description 91
- 230000003213 activating effect Effects 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 17
- 238000013507 mapping Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 235000019505 tobacco product Nutrition 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/57—Temperature control
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Abstract
The present application provides a control method of an aerosol-generating device and an aerosol-generating device, the aerosol-generating device comprising a heating element for heating an aerosol-generating article to produce an aerosol, the control method comprising: activating the aerosol-generating device; determining the closing time length of the aerosol-generating device, wherein the closing time length is the time interval from the last closing time of the aerosol-generating device to the current starting time; and determining the preheating energy of the aerosol generating device according to the closing time length, and controlling the heating element to output the preheating energy so as to enable the aerosol generating device to reach a preset target temperature, thereby solving the problem that the aerosol mouthfeel of the aerosol generating device started by the heat engine and the aerosol generating device started by the cold engine is different.
Description
Technical Field
The application relates to the technical field of low-temperature smoke, in particular to a control method of an aerosol generating device and the aerosol generating device.
Background
Conventional tobacco products (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke, and products that release compounds upon heating without burning currently exist in place of these conventional tobacco products. Examples of such products are aerosol-generating devices, which typically comprise a heating element for heating a cigarette-like aerosol-generating article inserted into the device, such that part of the active in the aerosol-generating article is volatilized by heating to generate an aerosol.
The existing aerosol generating device generally judges whether the heat engine is started or the cold engine is started through the temperature sensing element, and then the heating element is controlled to heat the aerosol generating product in a targeted manner according to the heat engine is started or the cold engine is started, so that the suction taste of a user under the heat engine is kept consistent with that under the cold engine, and the manufacturing cost of the aerosol generating device is correspondingly increased by adding the temperature sensing element.
Disclosure of Invention
The embodiment of the application provides a control method of an aerosol generating device and the aerosol generating device, which are different from a mode of identifying the start of a heat engine or the start of a cold engine through a temperature sensing element, so as to solve the problem that the aerosol produced by the aerosol generating device started by the heat engine and the aerosol produced by the aerosol generating device started by the cold engine have different mouthfeel.
In one aspect of the present application, there is provided a control method of an aerosol-generating device comprising a heating element for heating an aerosol-generating article to produce an aerosol, the control method comprising: activating the aerosol-generating device; determining a closing time length of the aerosol-generating device, wherein the closing time length is a time interval from the last closing time of the aerosol-generating device to the current starting time; and determining the preheating energy of the aerosol-generating device according to the closing time period, and controlling the heating element to output the preheating energy so as to enable the aerosol-generating device to reach a preset target temperature.
In some embodiments, the determining the preheating energy of the aerosol-generating device according to the closing duration and controlling the heating element to output the preheating energy comprise: determining a warm-up period of the aerosol-generating device according to the closing period; controlling the heating element to output the preheating energy in the preheating time period at a preset power according to the preheating time period; wherein the warm-up period is a period of time required for the heating element to heat up a current temperature of the aerosol-generating device when it is currently activated to the target temperature.
In some embodiments, the controlling the heating element to output the preheating energy for the preheating period at a predetermined power according to the preheating period includes: determining a difference value between a set preheating time and the preheating time to obtain a delay time, wherein the set preheating time is a time for preheating the aerosol-generating product at the preset power in the process of heating the aerosol-generating product from the ambient temperature to the target temperature; controlling the heating element to start heating if the on-time of the aerosol-generating device reaches the delay period; and controlling the heating element to stop heating under the condition that the heating time of the heating element reaches the preheating time.
In some embodiments, the controlling the heating element to output the preheating energy for the preheating period at a predetermined power according to the preheating period includes: synchronously controlling the heating element to start heating at the starting moment of the aerosol-generating device; and under the condition that the heating time of the heating element reaches the preheating time, controlling the heating element to stop heating, wherein the preheating time is smaller than or equal to a set preheating time, and the set preheating time is the time when the aerosol-generating product is preheated with the preset power in the process of heating from the ambient temperature to the target temperature.
In some embodiments, the determining the duration of preheating the aerosol-generating device according to the closing duration comprises: and determining a target preheating time length corresponding to the closing time length as the preheating time length according to a preheating time length mapping relation, wherein the preheating time length mapping relation is a mapping relation between the closing time length and the target preheating time length, and the target preheating time length is a time length for preheating the aerosol-generating product at the preset power in the process of heating the aerosol-generating product to the target temperature.
In some embodiments, the controlling the heating element to output the preheating energy to bring the aerosol-generating device to a preset target temperature comprises: determining the supplied energy of the heating element at the current moment; and controlling the heating element to stop heating in the case that the supplied energy reaches the current preheating energy.
In some embodiments, the aerosol-generating device comprises a controller, the method further comprising, prior to activating the aerosol-generating device: under the condition that the aerosol generating device is closed, the controller enters a timed wake-up mode, stores wake-up time each time, and further determines the closing time length according to the wake-up time; the timing wake-up mode is a mode that the controller wakes up once at fixed intervals.
In some embodiments, after the controller enters the timed wake mode, the method further comprises: and if the number of awakening times of the controller is larger than a preset number, the controller exits the timed awakening mode, wherein the preset number is the minimum number of awakening times required by the aerosol-generating device to be cooled to the ambient temperature.
In some embodiments, the determining the preheating energy of the aerosol-generating device according to the closing duration comprises: acquiring a cooling curve of the closed aerosol generating device, wherein the cooling curve is a curve of the change of the temperature of the closed aerosol generating device along with time; determining a current temperature of the aerosol-generating device when the aerosol-generating device is currently started according to the closing duration and the cooling curve; a preheating energy of the aerosol-generating device is determined from the target temperature and the current temperature.
In some embodiments, after controlling the heating element to output the preheating energy to bring the aerosol-generating device to a preset target temperature, the method further comprises: controlling the heating element to initiate the energy supply of a soak phase, the soak phase comprising a plurality of energy output phases.
In some embodiments, the controlling the heating element to initiate the energy supply of the soak phase comprises: determining the supplied energy of the current energy output stage; controlling the heating element to stop the energy supply of the current energy output stage under the condition that the supplied energy reaches the energy corresponding to the current energy output stage; determining a duration for which the heating element ceases the current energy delivery of the energy delivery phase; and ending the current energy output stage and entering the next energy output stage under the condition that the duration reaches the cooling duration of the current energy output stage, wherein the cooling duration is the duration of the cooling time period of the energy output stage.
In some embodiments, the controlling the heating element to initiate the energy supply of the soak phase comprises: determining a duration for which the heating element ceases the current energy delivery of the energy delivery phase; controlling the heating element to start heating when the duration reaches the current cooling duration of the energy output stage, wherein the cooling duration is the duration of the cooling time period of the energy output stage; determining the supplied energy of the current energy output stage; and controlling the heating element to stop the energy supply of the current energy output stage and end the current energy output stage and enter the next energy output stage under the condition that the supplied energy reaches the energy corresponding to the current energy output stage.
In some embodiments, the controlling the heating element to initiate the energy supply of the soak phase comprises: determining the supplied energy of the current energy output stage; controlling the heating element to stop the energy supply of the current energy output stage under the condition that the supplied energy reaches the energy corresponding to the current energy output stage; acquiring a real-time temperature of the heating element; and ending the current energy output stage and entering the next energy output stage under the condition that the real-time temperature of the heating element is reduced to a preset low-temperature threshold value.
In another aspect of the application, an aerosol-generating device is provided, comprising a heating element for heating an aerosol-generating article to generate an aerosol, and a controller configured to perform the control method as described above.
In the control method of the aerosol-generating device, the aerosol-generating device is started first; then, determining the closing time length of the aerosol-generating device, wherein the closing time length is the time interval from the last closing time of the aerosol-generating device to the current starting time; and finally, determining the preheating energy of the aerosol-generating device according to the closing time period, and controlling the heating element to output the preheating energy so as to enable the aerosol-generating device to reach a preset target temperature. According to the method, corresponding preheating energy is determined according to the closing time of the aerosol generating device, so that the influence of waste heat of the aerosol generating device on the preheating is considered, the heat engine with the waste heat is started and the cold engine at room temperature is started, the optimal temperature of the aerosol taste of the aerosol generating device can be achieved after the preheating, the fact that the heat engine is started or the cold engine is started is judged according to the closing time, a temperature sensor is not needed for judging, the aerosol can be heated to the optimal temperature of the taste only by controlling the preheating energy, and the cost is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 shows a schematic view of an aerosol-generating device;
fig. 2 shows a schematic view of another aerosol-generating device;
fig. 3 shows a flow chart of a method of controlling an aerosol-generating device according to an embodiment of the application;
fig. 4 shows a temperature versus time relationship for a cooling process of an aerosol-generating device according to an embodiment of the application;
fig. 5 shows a timing diagram of the operating voltage of a heating element of an aerosol-generating device according to an embodiment of the application;
fig. 6 shows a timing diagram of the operating voltage of a heating element of an aerosol-generating device according to another embodiment of the application;
wherein the above figures include the following reference numerals:
100. an aerosol-generating device; 200. an aerosol-generating article; 10. a battery cell; 20. a main board; 30. a heating element; 40. a chamber; 50. a coil.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
Fig. 1 is a schematic structural diagram of an aerosol-generating device 100 according to an embodiment of the present application, where the aerosol-generating device 100 includes a battery cell 10, a main board 20 and a heating element 30, the main board 20 is provided with a controller of the aerosol-generating device 100, and the battery cell 10 and the heating element 30 are electrically connected to the controller, respectively, so that the controller can control the battery cell 10 to provide electric energy to the heating element 30. The aerosol-generating device 100 is further provided with a longitudinally extending chamber 40, the chamber 40 is used for accommodating a cigarette-shaped aerosol-generating article 200 used with the aerosol-generating device 100, the heating element 30 is attached to the outer wall of the chamber 40 so as to heat the aerosol-generating article 200 in the chamber 40, part of active substances filled in the aerosol-generating article 200 are volatilized by heating to generate aerosol, and a user sucks the aerosol on the aerosol-generating article 200. In some embodiments, the heating element 30 extends at least partially into the chamber 40, and the end thereof that extends into the chamber 40 is configured in a pin-like or sheet-like manner so that the heating element 30 is smoothly inserted into the aerosol-generating article 200 for heating.
In some embodiments, fig. 2 is a schematic structural diagram of an aerosol-generating device 100 according to another embodiment of the present application, where the aerosol-generating device 100 may further heat an aerosol-generating article 200 by using an electromagnetic induction heating method, a coil 50 is wound on an outer wall of the chamber 40, an alternating current is applied to the coil 50 by the electric core 10, the coil 50 generates a variable magnetic field under the action of the alternating current, the variable magnetic field penetrates the heating element 30 to induce eddy currents in the heating element 30, and the heating element 30 generates heat under the action of eddy current effects and hysteresis effects, so as to heat the aerosol-generating article 200. In some embodiments, the heating element comprises a resistive material that, when electrically conductive, is capable of generating joule heat. In some embodiments, the heating element comprises an infrared electrothermal coating capable of generating thermal energy upon energization, thereby generating infrared light of a wavelength, for example: infrared rays of 0.75-1000 μm. In some embodiments, the heating element may be used to directly heat the aerosol-generating article 200, or may be used to heat air in the air flow channel, to heat air flowing through the air flow channel to high temperature air, which then enters the aerosol-generating article, exchanging heat with the aerosol-generating article, and effecting heating and baking of the aerosol-generating article.
Fig. 3 is a flow chart of a control method of an aerosol-generating device according to an embodiment of the application. As shown in fig. 3, the method comprises the steps of:
step S201, starting the aerosol generating device;
specifically, the aerosol-generating device may be a low-temperature smoking article, and the aerosol-generating article may comprise an aerosol-forming substrate comprising or without tobacco material, and may wake up a controller or other component after the aerosol-generating device is activated.
Step S202, determining a closing time period of the aerosol-generating device.
The closing time period is the time interval from the last closing time of the aerosol-generating device to the current starting time. Specifically, under the condition that the aerosol-generating device is restarted in a short time after being turned off, the aerosol-generating device is not cooled to the room temperature yet, and residual heat exists, as shown in fig. 4, the temperature at the time of starting the aerosol-generating device is related to the current turn-off time period at the time of starting, the turn-off time period at the time of starting the aerosol-generating device is the time period from the last turn-off time of the aerosol-generating device to the current start time, namely, the current turn-off time period, and the shorter the current turn-off time period is, the higher the residual heat of the heating element at the time of starting the aerosol-generating device is.
In some embodiments, the controller may count all of the closing time periods to determine a time interval between the current start time and the last closing time; in other embodiments, the controller may also count only a portion of the closing time, and determine that the next start is a cold start when the counted closing time exceeds a preset time threshold, without further counting the closing time.
Step S203, determining the preheating energy of the aerosol-generating device according to the closing duration, and controlling the heating element to output the preheating energy so as to make the aerosol-generating device reach a preset target temperature.
Typically, the aerosol-generating device is activated, i.e. the heating element is immediately powered to activate the preheating phase, the aerosol-generating article may be preheated to increase the temperature of the aerosol-forming substrate to a temperature at which a satisfactory amount of aerosol is produced, which may be produced during the preheating phase, but which is typically not pumped out of the device by the user.
Specifically, the closing time length of the last closing time of the starting time of the aerosol generating device is different, the temperature of the heating element of the aerosol generating device at the starting time is also different, the preheating energy required by the aerosol generating device to preheat from the temperature at the starting time to the target temperature is also different, and different preset preheating energy is given to the heating element according to the difference of cold machine starting or heat machine starting so as to heat the aerosol generating product to finish preheating, so that the aerosol generating device can reach the temperature with the optimal taste of the aerosol after preheating, and the taste difference caused by different waste heat is eliminated.
Firstly, starting the aerosol generating device; then, determining the closing time length of the aerosol-generating device, wherein the closing time length is the time interval from the last closing time of the aerosol-generating device to the current starting time; and finally, determining the preheating energy of the aerosol-generating device according to the closing time period, and controlling the heating element to output the preheating energy so as to enable the aerosol-generating device to reach a preset target temperature. According to the method, corresponding preheating energy is determined according to the closing time of the aerosol generating device, the influence of waste heat of the aerosol generating device on the preheating is purposefully considered according to different closing time, so that the optimal temperature of the aerosol taste of the aerosol generating device can be achieved after the heat engine with the waste heat is started and the cold engine at room temperature is started and preheated, the aerosol taste of the heat engine and the aerosol taste of the cold engine-started aerosol generating device are consistent, whether the heat engine is started or the cold engine is started is judged according to the closing time, a temperature sensor is not needed to judge, the aerosol can be heated to the optimal temperature of the taste only by controlling the preheating energy, and the cost is saved.
In order to facilitate control of the preheating energy output to the heating element, in an alternative embodiment, step S203 includes:
step S2031, determining a preheating time period of the aerosol-generating device according to the closing time period.
The memory in the aerosol-generating device may be pre-configured with a correspondence of the closing duration and the preheating duration. Wherein the preheating period is a period of time required for the heating element to heat up the current temperature of the aerosol-generating device at the current start-up to the target temperature (which may also be understood as the highest temperature of the preheating stage).
Step S2032, controlling to output the preheating energy to the heating element with a predetermined power for the preheating period according to the preheating period.
Specifically, since the energy is the integral of power and time, if the heating power is not fixed, it is difficult to control the heating energy only by controlling the heating time, so that the heating energy output by the heating element can be accurately controlled by controlling the preheating time length by setting the fixed heating power by the heating element, and the method is simple and convenient.
For convenience of application, in an alternative embodiment, step S2032 includes:
step S20321, determining a difference between the set warm-up time and the warm-up time period, and obtaining the delay time period. The set preheating time is the duration of time required for preheating the aerosol-generating article at the predetermined power during heating from ambient temperature to the target temperature.
Step S20322 is executed to control the heating element to start heating when the on-time of the aerosol-generating device reaches the delay time.
As shown in fig. 5, (1) is the energy output of the aerosol-generating device at the time of cold start, and (2) and (3) are the energy outputs of the aerosol-generating device at the time of hot start, which are started when the start-up time of the aerosol-generating device reaches a delay period. (2) (3) respectively represent the cases where the off-time periods are different, the output energy thereof or the delay time periods thereof are correspondingly different. Wherein, (2) represents a case where the heat engine is started and the off period is long, (3) represents a case where the heat engine is started and the off period is short, (2) the delay period is smaller than (3).
Step S20323, when the heating time period of the heating element reaches the preheating time period, controlling the heating element to stop heating or entering the next stage to meet the requirement of the next stage (heat preservation stage) to control the output energy/power to the heating element.
In particular, the aerosol-generating device is typically configured with a fixed preheating time to facilitate control of the point in time at which the preheating is completed and the incubation period is entered, and the fixed preheating time is greater than or equal to the duration of the cold start preheating to ensure that the aerosol-generating article is preheated to the target temperature regardless of the cold start or the hot start. As shown in fig. 5, the preheating is started again after a delay time from the start-up, so that the preheating is ended to enter the warm-up phase.
For convenience of application, in an alternative embodiment, step S2032 includes:
step S20324, at the start-up time of the aerosol-generating device, controlling the heating element to start heating.
In step S20325, in a case where the heating time period of the heating element reaches the target warm-up time period, the heating element is controlled to stop heating.
The heating duration is less than or equal to a set preheating duration, the set preheating duration being a duration during which the aerosol-generating article is preheated at a predetermined power during heating from ambient temperature to a target temperature.
As shown in fig. 6, (1) shows the energy output at the time of cold start, t 0 -t 1 It can be understood as a set warm-up time; (2) (3) the power/energy of the aerosol-generating device to the heating element is ended in advance when the heat engine is started, (2) and (3) respectively represent the conditions that the closing time periods are different and the output energy is correspondingly different. Wherein, (2) represents a case where the heat engine is started and turned off for a long period of time, (3) represents a case where the heat engine is started and turned off for a short period of time, (2) the heating period of time is longer than the heating period of time (3).
In particular, the aerosol-generating device is typically configured with a fixed preheating time to facilitate control of the point in time at which the preheating is completed and the incubation period is entered, and the fixed preheating time is greater than or equal to the duration of the cold start preheating to ensure that the aerosol-generating article is preheated to the target temperature regardless of the cold start or the hot start. As shown in fig. 6, the heating element may reach the target temperature first and then may drop below the target temperature, or may be maintained at the target temperature, so as to avoid the overshoot of the heating temperature of the aerosol-generating article, and affect the taste.
Specifically, when the heating time reaches the preheating time, the heating element is controlled to start heating, the heating is ended in advance, which is equivalent to the preheating stage being ended in advance, the heating stage can be started after the preheating is ended, and in order to improve the heating efficiency, even if the heat engine is started, the heating stage does not need to wait for a period of time until the fixed preheating time is met, and the influence on the taste caused by the fact that the temperature of the aerosol generating product does not meet the expected reduction can be avoided. In some embodiments, as shown in fig. 6, the control heating element ends heating prematurely, and the heating element stops heating until a fixed warm-up time is met, and then enters a soak phase, but may cause the temperature of the aerosol-generating article that has reached the highest temperature to fall back. Both ways are adapted to the heating requirements of the different aerosol-generating articles.
Specifically, a target preheating time length corresponding to the closing time length is determined as a preheating time length; the map of the preheating duration may be understood as a map of the closing duration and a target preheating duration, the target preheating duration being a duration during which the aerosol-generating article is preheated at the above-mentioned predetermined power in the process of heating the aerosol-generating article to the target temperature.
Specifically, because the closing time length when the aerosol generating device is started is different, the temperature when the heating element is started is different, the preheating time length required by the aerosol generating device to preheat from the temperature at the starting time to the target temperature is also different, and the mapping relation between the current closing time length and the target preheating time length is established through a calibration experiment, so that the target preheating time length corresponding to the current closing time length can be determined as the preheating time length according to the preheating time length mapping relation.
In order to adapt to more application scenarios, in an alternative embodiment, step S203 includes:
step S2033, determining the supplied energy of the heating element at the current time;
step S2034, when the supplied energy reaches the current preheating energy, of controlling the heating element to stop heating.
Specifically, in the actual application process, the heating power of the heating element may not be kept constant, and whether to end preheating may be judged not by the duration, but directly by whether the energy reaches the preset energy, so that the control method is suitable for more application scenes.
In order to reduce power consumption, in an alternative embodiment, the aerosol-generating device comprises a controller, and before step S201, the method further comprises:
step S301, when the aerosol generating device is turned off, the controller enters a timed wake-up mode, stores wake-up time each time, and further determines the turn-off duration according to the wake-up time; the timed wake-up mode is a mode that the controller wakes up once at fixed intervals.
Specifically, when the aerosol generating device is turned off, the controller is in a timed wake-up mode, namely, enters a sleep state and wakes up at intervals of preset time, the time can be counted according to the wake-up time to determine the turn-off time, the controller is not required to be kept in a working state all the time, and the power consumption is greatly reduced.
In order to further reduce the power consumption, in an alternative embodiment, after step S301, the method further includes:
in step S302, when the number of wake-ups of the controller is greater than a predetermined number, the controller exits the timed wake-up mode, and the predetermined number is the minimum number of wake-ups required for cooling the aerosol-generating device to the ambient temperature.
Specifically, when the closing time of the aerosol generating device exceeds the minimum time of the cold machine start, the time can be omitted, the minimum time of the cold machine start, namely the minimum time required for cooling to the ambient temperature, can be determined according to the time and the wake-up interval time, namely the wake-up time exceeds the predetermined time, the cold machine start can be determined directly without continuing the time counting, and the controller can exit the time wake-up mode, keep dormant and further reduce the power consumption.
To further simplify the preheating method, in an alternative embodiment, step S203 includes:
step S2035, obtaining a cooling curve of the aerosol-generating device after being turned off, where the cooling curve is a curve of a temperature change of the aerosol-generating device after being turned off with time;
step S2036, determining a current temperature of the aerosol-generating device when the aerosol-generating device is currently started according to the closing duration and the cooling curve;
step S2037, determining a preheating energy of the aerosol-generating device according to the target temperature and the current temperature.
Specifically, as shown in fig. 4, a curve of temperature change with time after the aerosol generating device is turned off can be found according to the turn-off duration, and the current temperature of the aerosol generating device when the aerosol generating device is currently started is determined, so that preheating energy required for preheating to the target temperature is determined according to the temperature difference between the target temperature and the current temperature, the preheating time is controlled to achieve preheating without establishing the mapping relation between the current turn-off duration and the target preheating duration through a calibration experiment, and the preheating method is simplified.
In order to ensure the taste of the aerosol, in an alternative embodiment, after the step S203, the method further includes:
step S401, controlling the heating element to start energy supply in a heat preservation stage, wherein the heat preservation stage includes a plurality of energy output stages.
Specifically, as shown in fig. 5 and 6, the warm-up stage (t) is entered after the completion of warm-up 1 -t 2 Stage) the heat preservation stage can have a plurality of energy output stages.
In some embodiments, by determining the supplied energy of the current energy output stage, controlling the heating element to stop the energy supply of the current energy output stage if the supplied energy reaches the energy corresponding to the current energy output stage, determining the duration of the heating element to stop the energy supply of the current energy output stage until the duration reaches the cooling duration set by the current energy output stage, ending the current energy output stage and entering the next energy output stage. The temperature-keeping stage comprises a plurality of energy output stages, each energy output stage comprises a heating period and a cooling period, then the next energy output stage is started, each energy output stage is provided with corresponding energy supply, heating can be stopped after the duration corresponding to the energy supply is reached, cooling is performed, the temperature does not need to be detected by a temperature sensor to reach the target temperature, heating is stopped, the next energy output stage can be started after the cooling duration corresponding to the energy output stage is reached, the temperature threshold is not required to be lowered by the temperature sensor to enter the next energy output stage, and the problem that the taste is affected due to inaccurate temperature detection is avoided. Of course, each energy output stage is not limited to heating followed by cooling, and may be heating followed by cooling.
In some embodiments, determining supplied energy of the current energy output stage, and controlling the heating element to stop the supply of energy of the current energy output stage when the supplied energy reaches the energy corresponding to the current energy output stage; and acquiring the real-time temperature of the heating element in the process of stopping the output energy supply, ending the current energy output stage and entering the next energy output stage under the condition that the real-time temperature of the heating element is reduced to a preset low-temperature threshold value. This approach requires the use of a temperature sensing element in combination.
In some embodiments, the real-time temperature of the heating element is obtained during the process of providing energy to the heating element, the heating element is controlled to stop the energy supply in the current energy output stage when the real-time temperature of the heating element rises to the preset high-temperature threshold value, the real-time temperature of the heating element is obtained during the process of stopping the energy supply, and the current energy output stage is ended and the next energy output stage is entered when the real-time temperature of the heating element falls to the preset low-temperature threshold value. This approach also requires the use of a temperature sensing element in combination.
It should be noted that although a logical order is depicted in the flowchart, in some cases the steps depicted or described may be performed in a different order than presented herein.
The embodiment of the application also provides an aerosol generating device, which comprises a heating element and a controller, wherein the heating element is used for heating an aerosol generating product to generate aerosol, the controller is configured to start the aerosol generating device, determine the closing time length of the aerosol generating device, the closing time length is the time interval from the last closing time of the aerosol generating device to the current starting time, determine the preheating energy of the aerosol generating device according to the closing time length, and control the heating element to output the preheating energy so as to enable the aerosol generating product to reach the preset target temperature.
In the above aerosol-generating device, the controller is configured to start the above aerosol-generating device, determine a closing time period of the aerosol-generating device, the closing time period being a time interval from a last closing time of the aerosol-generating device to a current starting time, determine preheating energy of the aerosol-generating device according to the closing time period, and control the heating element to output the preheating energy so as to enable the aerosol-generating product to reach a preset target temperature. The corresponding preheating energy is determined according to the closing time of the aerosol generating device, so that the influence of the residual heat of the aerosol generating device on the preheating caused by the closing time is considered, the optimal temperature of the aerosol taste of the aerosol generating device can be achieved after the heat engine with the residual heat is started and the cold engine at room temperature is started and preheated, the problem that the aerosol taste of the aerosol generating device started by the heat engine is different from that of the aerosol generating device started by the cold engine is solved, whether the aerosol generating device is started by the heat engine or the cold engine is judged by the closing time, a temperature sensor is not needed, the aerosol can be heated to the optimal temperature of the aerosol taste only by controlling the preheating energy, and the cost is saved.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects, and in the aerosol-generating device and the control method thereof, the aerosol-generating device is started first; then, determining the closing time length of the aerosol generating device, wherein the closing time length is the time interval from the last closing time of the aerosol generating device to the current starting time; and finally, determining the preheating energy of the aerosol generating device according to the closing time, and controlling the heating element to output the preheating energy so as to enable the aerosol generating device to reach the preset target temperature. According to the method, corresponding preheating energy is determined according to the closing time of the aerosol generating device, so that the influence of waste heat of the aerosol generating device on preheating caused by the closing time is considered, the temperature of the aerosol generating device with the waste heat, which is optimal for the taste of the aerosol, can be reached after the heat engine with the waste heat is started and the cold engine at room temperature is started and preheated, the problem that the aerosol taste of the aerosol generating device with the heat engine and the cold engine is different is solved, whether the heat engine is started or the cold engine is started is judged through the closing time, a temperature sensor is not needed, the aerosol can be heated to the temperature with the optimal taste only through controlling the preheating energy, and the cost is saved.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (14)
1. A method of controlling an aerosol-generating device, the aerosol-generating device comprising a heating element for heating an aerosol-generating article to produce an aerosol, the method comprising:
activating the aerosol-generating device;
determining a closing time length of the aerosol-generating device, wherein the closing time length is a time interval from the last closing time of the aerosol-generating device to the current starting time;
and determining the preheating energy of the aerosol-generating device according to the closing time period, and controlling the heating element to output the preheating energy so as to enable the aerosol-generating device to reach a preset target temperature.
2. A method according to claim 1, wherein said determining a preheating energy of the aerosol-generating device from the closing time period and controlling the heating element to output the preheating energy comprises:
determining a warm-up period of the aerosol-generating device according to the closing period;
controlling the heating element to output the preheating energy in the preheating time period at a preset power according to the preheating time period;
wherein the warm-up period is a period of time required for the heating element to heat up a current temperature of the aerosol-generating device when it is currently activated to the target temperature.
3. The method of claim 2, wherein said controlling the heating element to output the preheating energy for the preheating period at a predetermined power in accordance with the preheating period comprises:
determining a difference value between a set preheating time and the preheating time to obtain a delay time, wherein the set preheating time is a time for preheating the aerosol-generating product at the preset power in the process of heating the aerosol-generating product from the ambient temperature to the target temperature;
controlling the heating element to start heating if the on-time of the aerosol-generating device reaches the delay period;
and controlling the heating element to stop heating under the condition that the heating time of the heating element reaches the preheating time.
4. The method of claim 2, wherein said controlling the heating element to output the preheating energy for the preheating period at a predetermined power in accordance with the preheating period comprises:
simultaneously controlling the heating element to start heating at the moment of starting the aerosol-generating device;
and under the condition that the heating time of the heating element reaches the preheating time, controlling the heating element to stop heating, wherein the preheating time is smaller than or equal to a set preheating time, and the set preheating time is the time when the aerosol-generating product is preheated with the preset power in the process of heating from the ambient temperature to the target temperature.
5. A method according to claim 2, wherein said determining a warm-up period of the aerosol-generating device from the shut-down period comprises:
according to the preheating time length mapping relation, determining the target preheating time length corresponding to the closing time length as the preheating time length;
the preheating time length mapping relation is a mapping relation between the closing time length and the target preheating time length, and the target preheating time length is a time length for preheating with the preset power in the process of heating the aerosol-generating product to the target temperature.
6. A method according to claim 1, wherein said controlling the heating element to output the preheating energy to bring the aerosol-generating device to a preset target temperature comprises:
determining the supplied energy of the heating element at the current moment;
and controlling the heating element to stop heating in the case that the supplied energy reaches the current preheating energy.
7. A method according to claim 1, wherein the aerosol-generating device comprises a controller, the method further comprising, prior to activating the aerosol-generating device:
under the condition that the aerosol generating device is closed, the controller enters a timed wake-up mode, stores wake-up time each time, and further determines the closing time length according to the wake-up time; the timing wake-up mode is a mode that the controller wakes up once at fixed intervals.
8. The method of claim 7, wherein after the controller enters a timed wake-up mode, the method further comprises:
and if the number of awakening times of the controller is larger than a preset number, the controller exits the timed awakening mode, wherein the preset number is the minimum number of awakening times required by the aerosol-generating device to be cooled to the ambient temperature.
9. A method according to claim 7, wherein said determining a preheating energy of the aerosol-generating device from the closing duration comprises:
acquiring a cooling curve of the closed aerosol generating device, wherein the cooling curve is a curve of the change of the temperature of the closed aerosol generating device along with time;
determining a current temperature of the aerosol-generating device when the aerosol-generating device is currently started according to the closing duration and the cooling curve;
a preheating energy of the aerosol-generating device is determined from the target temperature and the current temperature.
10. A method according to claim 1, wherein after controlling the heating element to output the preheating energy to bring the aerosol-generating device to a preset target temperature, the method further comprises:
controlling the heating element to initiate the energy supply of a soak phase, the soak phase comprising a plurality of energy output phases.
11. The method of claim 10, wherein said controlling the heating element to initiate the energy supply of the soak phase comprises:
determining the supplied energy of the current energy output stage;
controlling the heating element to stop the energy supply of the current energy output stage under the condition that the supplied energy reaches the energy corresponding to the current energy output stage;
determining a duration for which the heating element ceases the current energy delivery of the energy delivery phase;
and ending the current energy output stage and entering the next energy output stage under the condition that the duration reaches the cooling duration of the current energy output stage, wherein the cooling duration is the duration of the cooling time period of the energy output stage.
12. The method of claim 10, wherein said controlling the heating element to initiate the energy supply of the soak phase comprises:
determining a duration for which the heating element ceases the current energy delivery of the energy delivery phase;
controlling the heating element to start heating when the duration reaches the current cooling duration of the energy output stage, wherein the cooling duration is the duration of the cooling time period of the energy output stage;
determining the supplied energy of the current energy output stage;
and controlling the heating element to stop the energy supply of the current energy output stage and end the current energy output stage and enter the next energy output stage under the condition that the supplied energy reaches the energy corresponding to the current energy output stage.
13. The method of claim 10, wherein said controlling the heating element to initiate the energy supply of the soak phase comprises:
determining the supplied energy of the current energy output stage;
controlling the heating element to stop the energy supply of the current energy output stage under the condition that the supplied energy reaches the energy corresponding to the current energy output stage;
acquiring a real-time temperature of the heating element;
and ending the current energy output stage and entering the next energy output stage under the condition that the real-time temperature of the heating element is reduced to a preset low-temperature threshold value.
14. An aerosol-generating device, comprising a heating element and a controller;
the heating element is for heating an aerosol-generating article to produce an aerosol;
the controller is configured to execute the control method according to any one of claims 1 to 13.
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