Control method and aerosol-generating apparatus

Abstract

The embodiments of the present application relate to the technical field of aerosol generation, and disclose a control method. The control method, starting with energy required for reaching a target temperature of a heater, sets preset target energy corresponding to a time interval, and supplies energy to the heater in time intervals. When compared with adjusting a power supply according to a real-time temperature of the heater, the control method allows for the energy supplied by the power supply to be fundamentally controlled, eliminating the need for temperature feedback, and effectively mitigating sensory profile issues or safety issues arising from temperature sensor inaccuracy or anomalies. In addition, during an energy supply process, actual target energy of a current time interval is continuously adjusted and compensated for according to the actual energy supply status, so that energy output by the power supply at each time interval throughout a heating process is, overall, consistent with the preset target energy for each time interval. This allows for a real-time temperature of the heater to converge to a required temperature curve, thereby helping to improve the sensory profile of the aerosol and ensuring a consistent experience.

Description

A control method and aerosol generating device

[0001] Cross-reference of related applications

[0002] This application claims priority to Chinese Patent Application No. 202411189537.7, filed on August 27, 2024, entitled "A Control Method and Aerosol Generating Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of aerosol generation technology, and more particularly to a control method and an aerosol generation apparatus. Background Technology

[0004] Aerosol generating devices heat the aerosol-forming matrix to generate aerosols for users to inhale. Typically, these devices use temperature sensors to collect the temperature of the heater and compare it with a target temperature corresponding to a preset temperature curve. The device then controls the power output to bring the heater temperature closer to the target temperature.

[0005] However, the above-mentioned temperature feedback-based control method increases the cost of aerosol generation devices. On the other hand, there is a possibility of temperature sensor malfunction or abnormality, which can easily lead to abnormal energy supply, thereby affecting the taste of aerosol inhalation or even causing safety accidents.

[0006] Application content

[0007] In view of this, the embodiments of this application mainly provide a control method and an aerosol generating device. This method supplies energy in time segments, eliminating the need for temperature feedback and effectively reducing taste or safety issues caused by inaccurate or malfunctioning temperature sensors. Furthermore, it continuously adjusts and compensates for the actual target energy of the current time segment based on the actual energy supply, ensuring that the energy output by the power supply in each time segment during the entire heating process is generally consistent with the preset target energy for each segment. This makes the real-time temperature of the heater more consistent with the desired temperature curve, thereby improving the aerosol's taste and achieving a more consistent flavor.

[0008] In a first aspect, this application provides a control method applied to an aerosol generating apparatus. The aerosol generating apparatus includes a heater and a power source. The heater is used to heat the aerosol forming matrix to generate aerosols, and the power source is used to provide power to the heater.

[0009] The control method includes:

[0010] Determine the preset target energy and compensation energy for the current time period;

[0011] Based on the preset target energy and the compensation energy for the current time period, determine the actual target energy for the current time period;

[0012] Based on the actual target energy for the current time period, the power supply is controlled to supply energy to the heater so that the total energy supplied to the heater within the preset duration corresponding to the current time period approaches the actual target energy for the current time period.

[0013] In some embodiments, determining the compensation energy for the current time period includes:

[0014] The compensation energy for the current time period is determined based on the actual target energy and the supplied energy of the previous time period, and / or based on the preset energy corresponding to the body temperature of the aerosol generating device.

[0015] In some embodiments, determining the compensation energy for the current time period based on the actual target energy and the supplied energy of the previous time period, or based on the preset energy corresponding to the body temperature of the aerosol production device, includes:

[0016] If the current time period is not the first time period, the compensation energy for the current time period is determined based on the actual target energy of the previous time period and the energy supplied in the previous time period; where the first time period is the first time period after the heater starts heating, and the actual target energy of the first time period is the preset target energy of the first time period.

[0017] If the current time period is the first time period, the compensation energy for the current time period is determined based on the preset energy corresponding to the body temperature of the aerosol generating device.

[0018] In some embodiments, determining the compensation energy for the current time period based on the actual target energy and the energy supplied in the previous time period includes:

[0019] The compensation energy for the current time period is determined based on the difference between the energy supplied in the previous time period and the actual target energy in the previous time period.

[0020] In some embodiments, the method further includes determining the preset target energy and compensation energy for the current time period before:

[0021] A mapping table is pre-established, showing multiple time periods, the preset duration of each time period, and the preset target energy for each time period.

[0022] In some embodiments, during the current time period, the control power supply starts the energy supply to the heater for the current time period and accumulates the energy supplied during the current time period.

[0023] If the energy supplied in the current time period is greater than or equal to the actual target energy in the current time period, then the power supply will stop supplying energy in the current time period.

[0024] If the energy supplied in the current time period is less than the actual target energy in the current time period, the control power supply will continue to supply energy in the current time period until the energy supplied in the current time period is greater than or equal to the actual target energy in the current time period or the current time period ends.

[0025] In some embodiments, accumulating the energy supplied during the current time period includes:

[0026] Starting from the current time period, calculate the energy supplied by the power source to the heater in period T to obtain the periodic energy;

[0027] By accumulating the energy from multiple cycles, the energy supplied in the current time period is obtained.

[0028] In some embodiments, the period T ranges from 1ms to 10ms, and / or the preset duration of the current time period is at least 100 times the period T.

[0029] In some embodiments, controlling the power supply to the heater based on the actual target energy for the current time period includes:

[0030] Adjust the power supplied to the heater based on the actual target energy for the current time period.

[0031] Secondly, embodiments of this application provide an aerosol generating apparatus, comprising:

[0032] Heater, used to heat aerosol forming articles to produce aerosols;

[0033] One or more processors, memory, and one or more programs, wherein the one or more programs are stored in memory and configured to be executed by one or more processors, and the one or more programs include control methods for performing any of the first aspects.

[0034] The beneficial effects of this application's embodiments: Unlike the prior art, the control method provided in this application is applied to an aerosol generating device, which includes a heater and a power supply. The heater heats the aerosol forming matrix to generate aerosols, and the power supply provides power to the heater. The control method includes: determining a preset target energy and a compensation energy for the current time period; determining the actual target energy for the current time period based on the preset target energy and the compensation energy; and controlling the power supply to provide energy to the heater based on the actual target energy, so that the total energy supplied to the heater within the corresponding preset duration of the current time period approaches the actual target energy for the current time period. The above method divides the heating process of the aerosol generating device into multiple time periods, supplying energy to the heater in each time period, and each time period has a corresponding preset target energy. This solution sets the preset target energy for each time period based on the energy required to achieve the heater's target temperature, and supplies energy in different time periods. Compared to adjusting the energy supply based on the heater's real-time temperature, this fundamentally controls the energy supplied by the power supply, eliminating the need for temperature feedback and effectively reducing taste or safety issues caused by inaccurate or abnormal temperature sensors. On the other hand, during the energy supply process, the actual target energy for the current time period is continuously adjusted and compensated based on the actual energy supply situation, so that the energy output by the power supply in each time period during the entire heating process tends to be consistent with the preset target energy for each time period. In this way, the real-time temperature of the heater tends to be consistent with the required temperature curve, which is beneficial to improving the aerosol taste and making the taste more consistent. Attached Figure Description

[0035] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0036] Figure 1 is a schematic diagram of an aerosol forming article inserted into an aerosol generating device in some embodiments of this application;

[0037] Figure 2 is a schematic diagram of the structure of the aerosol generating device in some embodiments of this application;

[0038] Figure 3 is a schematic diagram of the structure of aerosol-forming articles in some embodiments of this application;

[0039] Figure 4 is a schematic diagram of the working principle of the induction heater assembly in some embodiments of this application;

[0040] Figure 5 is a schematic diagram of an aerosol generating apparatus and an aerosol forming article in some embodiments of this application;

[0041] Figure 6 is a schematic flowchart of a control method applied to an aerosol generating device in some embodiments of this application. Embodiments of the present invention

[0042] The present application will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application. These all fall within the protection scope of the present application.

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0044] It should be noted that, unless there is a conflict, the various features in the embodiments of this application can be combined with each other, all of which are within the protection scope of this application. Furthermore, although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than the module division in the device or the order in the flowchart. In addition, the terms "first," "second," and "third" used herein do not limit the data or execution order, but only distinguish identical or similar items with essentially the same function and effect.

[0045] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0046] Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0047] Figures 1 and 2 illustrate an aerosol generating apparatus 10 according to some embodiments of this application, including: a chamber 11, a heater 12, a power supply 14, and a controller 15. The controller 15 is electrically connected to the power supply 14 and the heater 12.

[0048] Chamber 11 is used to receive aerosol-forming article 20. Aerosol-forming article 20 can be inserted into or removed from chamber 11 through opening A on aerosol generating device 10.

[0049] As shown in Figure 3, in some embodiments, the aerosol forming article 20 includes a filter section 21 and a matrix material section 22. The matrix material section 22 includes an aerosol forming matrix. The aerosol forming matrix is ​​a matrix capable of releasing volatile compounds that can form aerosols. These volatile compounds can be released by heating the aerosol forming matrix. The aerosol forming matrix can be a solid aerosol forming matrix. Alternatively, the aerosol forming matrix may include solid and liquid components.

[0050] In some embodiments, the aerosol forming matrix may include tobacco-containing material comprising volatile tobacco flavor compounds released from the matrix upon heating. Alternatively, the aerosol forming matrix may include non-tobacco materials. The aerosol forming matrix may further include aerosol formations. Suitable examples of aerosol formations are glycerol and propylene glycol.

[0051] The aerosol generated by heating the matrix material segment 22 is delivered to the user through the filter segment 21, which can be a cellulose acetate filter. The filter segment 21 can be sprayed with flavoring liquid to provide aroma, or, separately inserted fibers coated with flavoring liquid, can be inserted into the filter segment to improve the persistence of the flavor delivered to the user. The filter segment 21 can also have a spherical or cylindrical capsule containing the flavoring substance.

[0052] Figure 3 shows only the components of the aerosol forming article 20 relevant to this embodiment. Accordingly, those skilled in the art will understand that the aerosol forming article 20 may also include general components other than those shown in Figure 3. For example, a cooling section for cooling the aerosol generated by heating the matrix material section 22, so that the user can inhale the aerosol cooled to an appropriate temperature.

[0053] Heater 12 is used to heat the aerosol forming matrix in the aerosol forming article 20 to generate an inhalable aerosol.

[0054] The heater 12 includes a tubular base 121 extending axially along and surrounding the chamber 11, and a heating element 122 disposed on the outer surface of the base 121. It is understood that in some other embodiments, the heating element 122 may also be located on the inner surface or intermediate layer of the base 121. This is merely illustrative and does not impose any limitation on the heating element 122.

[0055] In some embodiments, the heating element 122 is a resistance heating circuit disposed on the substrate 121, such as a conductive trace, a MESH heating grid, or a heating wire. The resistance heating circuit is coupled to the power supply 14 through the lead 13 or a conductive medium. After receiving power from the power supply 14, it generates heat and transfers the heating energy generated by the heat generation to the aerosol forming article 20 through the substrate 121. In some embodiments, the heating element 122 is a heating plate or heating needle disposed in the chamber 11, which can be inserted into the aerosol forming article 20 for heating, i.e., the commonly referred to center heating or internal heating.

[0056] In some embodiments, the heating element 122 may also be an infrared electrothermal coating formed on the substrate 121. The infrared electrothermal coating is coupled to the power supply 14 through the wire 13 or a conductive medium. After receiving the power provided by the power supply 14, it heats up to generate infrared rays. It may be formed by heating the aerosol article 20 through the infrared-transmitting substrate 121 or by direct radiation.

[0057] In some embodiments, the heating element 122 may also be a heating element such as electromagnetic induction or air heating. The heating element 122 includes a sensor, and the aerosol generating apparatus 10 also includes a corresponding induction coil. When a changing current flows through the induction coil, the induction coil generates a changing magnetic field. When the changing magnetic field penetrates the sensor, the sensor heats up, thereby heating the aerosol forming matrix to generate aerosol. Exemplarily, as shown in FIG4(a), the induction coil is disposed on the outer surface of the substrate 121, and the sensor is in the form of a sheet, needle, or pin, disposed within the chamber 11. When the aerosol forming article 20 is inserted into the chamber 11, the sensor penetrates into the interior of the aerosol forming article 20 and comes into contact with the aerosol generating matrix. Thus, when the sensor 122 heats up, heat can be effectively transferred to the aerosol forming article 20 to bake the aerosol forming matrix. For example, as shown in FIG4(b), the sensor is a metal tube disposed on the inner surface of the substrate 121. When the aerosol forming article 20 is inserted into the chamber 11, the aerosol forming article 20 comes into direct or indirect contact with the metal tube. Thus, when the metal tube heats up, the heat can be effectively transferred to the aerosol forming article 20.

[0058] In some embodiments, the aerosol forming article 20 incorporates a metal sheet or metal needle. When the aerosol forming article 20 is inserted into the chamber 11, the incorporated metal sheet or metal needle acts as a sensor, generating heat under the influence of a changing magnetic field produced by the induction coil, thereby baking the aerosol forming matrix. It is understood that in this embodiment, the sensor is disposable and is discarded after the aerosol forming article 20 has been used.

[0059] In some embodiments, the sensor is located upstream of the air intake channel and does not directly contact the aerosol forming matrix. Instead, when the sensor heats up, the heat can be effectively transferred to the air to heat the air, and then the heated air enters the aerosol forming article 20 to bake the aerosol forming matrix.

[0060] In some embodiments, the aerosol generating device 10 further includes a top cover and a Hall sensor (not shown), the top cover being used to selectively cover the opening A of the aerosol generating device 10. In some embodiments, the top cover is disposed on the housing and is slidable relative to the housing, thereby exposing or closing the opening A. In some embodiments, the top cover and the housing are detachably connected by snaps or threads. When using the aerosol generating device, the top cover can be opened.

[0061] A magnet is installed inside the top cover. It is understood that when the top cover is closed, the magnet does not correspond to chamber 11, but rather to the space adjacent to chamber 11. A Hall sensor is located inside the outer casing. When the top cover is closed, the magnet aligns with the Hall sensor. Since the Hall sensor can detect magnetic fields and their changes, it can detect whether the top cover is open or closed.

[0062] Power source 14 provides electricity for operating the aerosol generating apparatus 10. For example, power source 14 can provide electricity to heater 12, which receives the electricity and generates heat. Furthermore, power source 14 can provide the electricity required to operate other components provided in the aerosol generating apparatus 10. Power source 14 can be a rechargeable battery or a disposable battery. Power source 14 can be, but is not limited to, a lithium iron phosphate (LiFePO4) battery. For example, power source 14 can be a lithium cobalt oxide (LiCoO2) battery or a lithium titanate battery.

[0063] The controller 15 can control the overall operation of the aerosol generating device 10. Specifically, the controller 15 controls the operation of the power supply 14 and the heater 12, and can also control the operation of other devices. In some embodiments, the controller 15 includes a memory for storing program instructions corresponding to the control methods in any of the following method embodiments.

[0064] In some embodiments, as shown in FIG. 5, the aerosol generating device 10 includes an atomizer 16, a device body 17, and a chamber 11. The atomizer 16 has a liquid storage chamber and a liquid aerosol forming matrix disposed within the liquid storage chamber. In some embodiments, the atomizer also has a heater for heating and atomizing the liquid aerosol forming matrix. In some embodiments, the atomizer does not have a heater and only has a liquid storage function, used to cooperate with an external heater to heat and atomize the liquid aerosol forming matrix inside the atomizer. In some embodiments, the atomizer may also be equipped with an ultrasonic atomizing element to ultrasonically atomize the liquid aerosol forming matrix. The atomizer 16 is pluggably installed in the chamber 11, and the device body 17 provides power and heating control to the atomizer 16. Exemplarily, the device body 17 includes a power supply and a controller (not shown). Similarly, the controller includes a memory for storing program instructions corresponding to the control methods in any of the following method embodiments. Thus, the control methods in any of the following method embodiments are implemented.

[0065] The following describes, in conjunction with exemplary applications and implementations of the aerosol generating apparatus provided in the embodiments of this application, some control methods for aerosol generating apparatuses provided in the embodiments of this application.

[0066] To better understand the control method in the embodiments of this application, before introducing the control method, a brief introduction will be given on the working process of the aerosol generating device that uses temperature feedback to control energy output.

[0067] After receiving the start heating command, the controller of the aerosol generating device uses a temperature control algorithm (such as PID algorithm) to control the heater to heat the heater so that the heater temperature meets the preset temperature curve.

[0068] Taking the PID algorithm as an example for temperature control, the temperature sensor collects the heater temperature at a certain frequency. If the heater temperature collected at a certain moment is lower than the target temperature corresponding to that moment in the temperature curve, the duty cycle of the PWM pulse signal is increased to increase the voltage supplied by the power supply to the heater, so that the temperature rises and is maintained at the target temperature. If the heater temperature collected at a certain moment is higher than the target temperature corresponding to that moment in the temperature curve, the duty cycle of the PWM pulse signal is decreased to decrease the voltage supplied by the power supply to the heater, so that the temperature falls and is maintained at the target temperature.

[0069] The start heating command can be a signal generated by the user operating the input element, or it can be obtained by the detection signal of the sensor. For example, the position trigger signal of the aerosol forming article 20 inserted into the aerosol generating device 10 can be detected by the pressure sensor or the electrical parameter sensor, or the signal generated by the user pressing the button can be detected by the airflow sensor.

[0070] In some embodiments, the temperature profile includes a preheating phase and a suction phase arranged sequentially over time. The preheating phase includes a heating phase and a holding phase. Exemplarily, the heater temperature first rises rapidly to the preheating temperature (e.g., around 250°C) within a short period, i.e., the heating phase, heating the aerosol-forming matrix to generate aerosols, effectively reducing the waiting time for the consumer to begin smoking. Then, to avoid burning or scorching the aerosol-forming matrix due to continuous high-temperature heating and to maintain a longer aerosol output time, the holding phase maintains the preheating temperature or a temperature slightly below the preheating temperature (e.g., around 230°C). Aerosols can be generated during this phase, but are generally unlikely to be suctioned out of the aerosol generating device by the user. After the holding phase ends, i.e., after the preheating phase ends, the aerosol generating device issues a suction-ready reminder, for example, through light, voice, or vibration, to remind the user that preheating is complete and suction is possible. Then, the aspiration phase begins. This phase refers to the stage where aerosols are generated at a satisfactory rate by the aerosol generating device and inhaled by the user. During the aspiration phase, the temperature is maintained at or slightly below the holding temperature (e.g., around 220°C).

[0071] It is understood that in other embodiments, the preheating stage only includes the heating phase, and the suction phase begins directly after the heating phase is completed. That is, the preheating stage ends after the heating phase is completed, and a sufficient amount of aerosol for suction is generated. The aerosol generating device issues a suction-ready reminder to inform the user that the preheating is complete and suction can begin.

[0072] As can be seen from the working process of the aerosol generating device described above, the controller adjusts the energy supply based on the real-time temperature of the heater collected by the temperature sensor, so that the heater temperature meets the preset temperature curve. On the one hand, the temperature sensor may malfunction or become inaccurate during this process. If the temperature sensor is inaccurate, the collected heater temperature will deviate significantly from the actual heater temperature, resulting in a large difference between the energy supplied by the power source and the required energy. This causes the heater temperature to deviate from the preset temperature curve, which can easily affect the taste of the aerosol and the user experience. In addition, malfunction or damage to the temperature sensor can easily lead to safety issues in the aerosol generating device, thereby damaging the device. On the other hand, because the temperature control strategy requires the temperature sensor to monitor the heater temperature, it also increases the cost of the aerosol generating device.

[0073] To address the aforementioned problems, embodiments of this application provide a control method for an aerosol generating apparatus. Please refer to Figure 6, which is a schematic flowchart illustrating the control method for an aerosol generating apparatus provided in some embodiments of this application.

[0074] As shown in Figure 6, method S100 may specifically include the following steps:

[0075] S10: Determine the preset target energy and compensation energy for the current time period.

[0076] First, this embodiment of the application starts with the energy required to achieve the target temperature of the heater. The heating process is divided into multiple time periods, and a preset duration and preset target energy are set for each time period. Energy is supplied in segments so that the actual temperature of the heater meets the preset temperature curve. For example, a mapping table between multiple time periods, the preset duration of each time period, and the preset target energy for each time period is pre-stored in the controller. After the aerosol generating device starts heating, the power supply provides energy to the heater according to this mapping table. For instance, the corresponding preset target energy is provided within the first preset duration of the first time period, the corresponding preset target energy is provided within the second preset duration of the second time period, and so on, until the corresponding preset target energy is provided within the nth preset duration of the nth time period. In this way, energy is supplied in segments so that the actual temperature of the heater meets the preset temperature curve.

[0077] Compared to controlling the power supply based on the real-time temperature of the heater collected by a temperature sensor, this solution sets a preset target energy for each time period based on the energy required to achieve the heater's target temperature, and supplies energy in segments throughout the time period. This eliminates the need for temperature feedback, effectively reducing taste and safety issues caused by inaccurate or malfunctioning temperature sensors. Furthermore, by directly controlling the energy supplied, without requiring a temperature sensor to collect the heater's real-time temperature, the cost of the aerosol generation device is reduced.

[0078] It is understandable that the time period in which the current moment is located is the current time period. For example, if the time period section_time[1] is (0s, 10s) and the time period section_time[2] is (10s, 30s), and the current moment t1 is 5s, then the current time period is section_time[1] because the time period in which it is located is section_time[1]; if the current moment t2 is 15s, then the current time period is section_time[2] because the time period in which it is located is section_time[2].

[0079] In the aerosol generating device, the timer starts counting after heating begins, obtaining the current time. The controller then uses this current time to look up the current time period, its corresponding preset duration, and the preset target energy in a mapping table. During actual heating, the energy supplied by the power source and the energy required by the heater are not always perfectly aligned across different time periods. Therefore, there may be instances where the energy supplied by the power source before the current time period exceeds the heater's requirements, or vice versa. Based on this, the preset target energy for the current time period can be adjusted according to the specific circumstances. This adjustment based on energy supply conditions constitutes the compensation energy or a portion of the compensation energy.

[0080] In some embodiments, the compensation energy for the current time period is related not only to the actual energy supply situation before the current time period, but also to the actual usage scenario of the aerosol generating device. For example, a high body temperature can reduce the preset target energy; a low body temperature can increase the preset target energy. In this embodiment, the adjustment amount of the preset target energy based on the body temperature can be the compensation energy or a portion of the compensation energy.

[0081] In some embodiments, step S10 specifically includes:

[0082] S11: Determine the compensation energy for the current time period based on the actual target energy and the supplied energy of the previous time period, and / or based on the preset energy corresponding to the body temperature of the aerosol generating device.

[0083] It is understood that the above step S11 includes three cases, namely (1) determining the compensation energy for the current time period based on the actual target energy and the supplied energy of the previous time period; (2) determining the compensation energy for the current time period based on the preset energy corresponding to the body temperature of the aerosol generating device; and (3) determining the compensation energy for the current time period based on the actual target energy, the supplied energy of the previous time period, and the preset energy corresponding to the body temperature of the aerosol generating device.

[0084] In this embodiment, the compensation energy for the current time period can be accurately determined based on the actual energy supply in the previous time period and / or the preset energy corresponding to the fuselage temperature.

[0085] The previous time period refers to the time period that precedes and is adjacent to the current time period in terms of time sequence. The total energy supplied to the heater by the power source during the previous time period is the energy supplied in the previous time period. The actual target energy of the previous time period refers to the actual target energy corresponding to the previous time period. The actual target energy of the previous time period may be the same as or different from the corresponding preset target energy.

[0086] It is understandable that, considering the limited accuracy of the energy output by the power supply in different time periods, that is, the deviation between the actual supplied energy and the preset target energy, the energy output by the power supply in different time periods is likely to have a large overall deviation from the preset target energy in each time period. This can lead to a large deviation between the real-time temperature of the heater and the required temperature curve, thus affecting the taste of the aerosol.

[0087] Therefore, for the first scenario above, the compensation energy for the current time period can be determined based on the energy supplied in the previous time period and the actual target energy in the previous time period. This allows for subsequent adjustments to the preset target energy for the current time period based on the compensation energy, thus obtaining the corresponding actual target energy.

[0088] For example, the deviation between the supplied energy and the actual target energy in the previous time period is used as the compensation energy for the current time period. This compensation energy is added to the preset target energy for the current time period to obtain the actual target energy for that period. This allows for timely correction of energy errors, and subsequent energy supply is based on the actual target energy for the current time period. This ensures that the energy output of the power supply in each time period during the entire heating process is generally consistent with the preset target energy for each time period. Consequently, the real-time temperature of the heater tends to match the required temperature curve, which is beneficial for improving the aerosol's flavor and making the taste more consistent.

[0089] Understandably, if there is still a discrepancy between the energy supplied in the current time period and the actual target energy in the current time period, it can be corrected in the next time period.

[0090] It should be noted that, for the above-mentioned case (1), the compensation energy of the current time period can be determined by starting from the second time period of multiple time periods. In this case, the previous time period corresponding to the second time period is the first time period of multiple time periods, and the actual target energy of the first time period is the preset target energy of the first time period. Alternatively, the compensation energy of the current time period can be determined by starting from the first time period of multiple time periods. In this case, the actual target energy of the previous time period and the supplied energy of the previous time period need to be initialized, for example, both can be initialized to zero.

[0091] Furthermore, some aerosol generating devices known to the inventors of this application do not take into account the influence of the device's body temperature during operation. Body temperature refers to the temperature of the aerosol generating device itself when in use. When not in operation, the body temperature of the aerosol generating device is close to the ambient temperature; therefore, the body temperature is not a fixed value but varies depending on the environment. For example, in extremely cold winters, due to the low ambient temperature, the body temperature of the aerosol generating device is also low, such as -3°C; in warmer summers or springs, the body temperature of the aerosol generating device is also higher, such as 15°C.

[0092] It is evident that ambient temperature in different usage scenarios can significantly impact the taste of aerosols. For instance, in the cold outdoors during winter, the body temperature of the aerosol generator is low. Consequently, the heat provided by the heater is not only transferred to the aerosol-forming matrix but also extensively transferred to the supporting structures surrounding the heater, such as the tubular substrate or the base and outer shell of the atomizer (i.e., the body of the aerosol generator). This can result in the aerosol-forming matrix not being sufficiently preheated due to insufficient heat absorption, leading to insufficient vapor production in the first few puffs, resulting in a poor taste and negatively impacting the user experience.

[0093] In some embodiments, different body temperatures have corresponding preset energies, and the correspondence between body temperature and its corresponding preset energy is pre-stored in the controller. The controller determines the corresponding preset energy based on the body temperature.

[0094] Therefore, the compensation energy for each time period can be determined based on the preset energy corresponding to the body temperature of the aerosol generator during actual use. For example, if the body temperature of the aerosol generator is low, some of the energy provided by the heater is dispersed by its surrounding support structure. In this case, the heater needs to provide more energy, and the preset energy corresponding to the body temperature is a positive value. It is understandable that the preset energy can be adjusted according to the specific body temperature conditions. For example, if the body temperature is 15℃, assuming the aerosol generator is in a generally cold environment, the preset energy corresponding to the body temperature is 0.1J; if the body temperature is 5℃, assuming the aerosol generator is in a relatively cold environment, the preset energy corresponding to the body temperature is 0.2J.

[0095] If the aerosol generator's body temperature is high, the heater itself will already have a certain temperature before starting heating. In this case, the heat required for the heater to reach the target temperature is lower than the heat required by the heater in a normal or low-temperature environment. Therefore, the preset energy corresponding to the body temperature is negative. It is understandable that the preset energy can be adjusted according to the specific body temperature. For example, if the body temperature is 35 degrees Celsius, the aerosol generator is considered to be in a generally hot environment, and the preset energy corresponding to the body temperature is -0.1 J; if the body temperature is 45 degrees Celsius, the aerosol generator is considered to be in a relatively hot environment, and the preset energy corresponding to the body temperature is -0.2 J.

[0096] If the body temperature of the aerosol generating device is at room temperature, the energy required for the heater to reach the target temperature remains unchanged. Therefore, the preset energy corresponding to the body temperature is 0°C. For example, if the body temperature is 25°C, the aerosol generating device is considered to be in a room temperature environment, and the preset energy corresponding to the body temperature is 0°C.

[0097] For the above-mentioned case (2), the compensation energy is determined by the preset energy corresponding to the body temperature of the aerosol generating device, and the preset target energy corresponding to each time period is adjusted. This not only reduces the influence of the body temperature on the heat received by the aerosol generating matrix, but also makes the heat received by the aerosol generating matrix consistent with its actual target heat, ensuring the aerosol suction taste and user experience under different usage environments.

[0098] In some embodiments, the compensation energy for the current time period can be determined based on the actual target energy of the previous time period, the energy supplied in the previous time period, and the preset energy corresponding to the body temperature of the aerosol generating device.

[0099] That is, for the above-mentioned situation (3), the compensation energy for the current time period can be accurately determined based on the actual energy supply in the previous time period and the preset energy corresponding to the body temperature. Specifically, the compensation energy is added to the preset target energy to obtain the actual target energy for the current time period. On the one hand, it can realize timely correction of energy errors, and the energy supply is then based on the actual target energy for the current time period, so that the energy output by the power supply in each time period during the entire heating process is consistent with the preset target energy for each time period. In this way, the real-time temperature of the heater is consistent with the required temperature curve, which is beneficial to improving the aerosol taste and making the taste more consistent. On the other hand, it can not only reduce the influence of the body temperature on the heat received by the aerosol generating matrix, but also make the heat received by the aerosol generating matrix consistent with its actual required target heat, ensuring the aerosol suction taste and user experience under different usage environments.

[0100] In some embodiments, step S11 above, "determining the compensation energy for the current time period based on the actual target energy of the previous time period and the supplied energy of the previous time period, or based on the preset energy corresponding to the body temperature of the aerosol generating device," specifically includes:

[0101] S111: If the current time period is not the first time period, the compensation energy for the current time period is determined based on the actual target energy of the previous time period and the energy supplied in the previous time period; wherein, the first time period is the first time period after the heater starts heating, and the actual target energy of the first time period is the preset target energy of the first time period.

[0102] After the heater receives a heating command and starts heating, its working process can be divided into multiple time periods according to the heater's energy requirements. The first time period is the first time period after heating is started, and the non-first time periods are all other time periods in the heating process except for the first time period.

[0103] If the current time period is not the first time period, it means that the current time period is not the first time period after heating is started, and the current time period has a preceding time period. For example, if the current time period is the i-th time period and is not the first time period, then i ≥ 2, and the preceding time period is the (i-1)-th time period, i-1 ≥ 1. Therefore, the preceding time period exists. Thus, if the current time period is not the first time period, the compensation energy for the current time period is determined based on the actual energy supply of the preceding time period; that is, based on the actual target energy and the already supplied energy of the preceding time period.

[0104] If the current time period is the first time period, then the current time period does not have a previous time period. For example, if the current time period is the j-th time period and is the first time period, then j=1, and the previous time period is the (j-1)-th time period, j-1=0. It can be seen that the previous time period does not exist. That is, if the current time period is the first time period, it does not have a previous time period. In this case, the current time period does not need to determine the compensation energy based on the actual energy supply of the previous time period (i.e., based on the actual target energy and the supplied energy of the previous time period). Therefore, the actual target energy of the current time period is the preset energy target of the current time period. Alternatively, in this case, the actual target energy and the supplied energy of the previous time period are both preset to zero, so the determined compensation energy is also zero, and the actual target energy of the current time period is the preset energy target of the current time period.

[0105] In some embodiments, step S111, "determining the compensation energy for the current time period based on the actual target energy of the previous time period and the energy supplied in the previous time period," specifically includes:

[0106] S111a: Determine the compensation energy for the current time period based on the difference between the energy supplied in the previous time period and the actual target energy in the previous time period.

[0107] After the heater starts heating, the power supply provides energy to the heater according to the actual needs of the aerosol generating device. During the energy supply process, the controller determines the compensation energy for the current time period based on the energy supplied in the previous time period and the actual target energy in the previous time period.

[0108] If the energy supplied in the previous time period is greater than the actual target energy in the previous time period, it indicates that the energy supplied to the heater by the power source in the previous time period exceeded the actual target energy in the previous time period. Therefore, it is necessary to adjust the preset target energy value of the current time period to reduce the energy supplied to the heater by the power source in the current time period. The difference between the preset target energy and the actual target energy in the current time period is the part of the energy supplied by the power source in the previous time period that exceeds the actual target energy in the previous time period. That is, the difference between the supplied energy and the actual target energy in the previous time period. This difference represents the energy deviation between the energy supplied by the power source and the actual energy required by the heater in this time period. The above energy deviation is the compensation energy, and the compensation energy is a negative value. For example, in the previous time period section_time[1] (0s, 10s), the supplied energy energy_sum[1] = 220J, and the actual target energy energy_set[1] = 200J, then the compensation energy in the current time period is energy_com[1] = energy_set[1] - energy_sum[1] = -20J.

[0109] In this case, it is necessary to reduce the energy supply in the current time period to ensure that the mapping relationship between the energy output of the power supply and the preset target energy for each time period remains highly consistent throughout the heating process, thereby reducing the impact on the inhalation taste of the aerosol due to the large difference in the total energy.

[0110] If the energy supplied in the previous time period is less than the actual target energy in the previous time period, it indicates that the energy supplied to the heater by the power source in the previous time period did not reach the actual target energy in the previous time period. Therefore, it is necessary to adjust the preset target energy of the current time period to increase the energy supplied to the heater by the power source in the current time period. The difference between the actual target energy in the current time period and the preset target energy in the current time period is the part of the energy supplied by the power source in the previous time period that is less than the actual target energy in the previous time period. That is, the energy deviation between the energy supplied to the heater by the power source in the previous time period and the actual target energy required by the heater. The above energy deviation is the compensation energy, and the compensation energy is a positive value. For example, in the previous time period section_time[3] (30s, 40s), the energy supplied in the previous time period energy_sum[3]=150J, and the actual target energy in the previous time period energy_set[3]=160J, then the compensation energy in the current time period is energy_com[2]=energy_set[3]-energy_sum[3]=10J.

[0111] In this case, it is necessary to increase the energy supply in the current time period to ensure that the mapping relationship between the energy output of the power supply and the target energy in each time period remains highly consistent throughout the heating process, thereby reducing the impact on the inhalation taste of the aerosol due to the large difference in the total energy.

[0112] S112: If the current time period is the first time period, then the compensation energy for the current time period is determined according to the preset energy corresponding to the body temperature of the aerosol generating device.

[0113] As can be seen from the above, if the current time period is the first time period, then the previous time period does not exist. Therefore, if the aerosol generating device is in an extremely low temperature environment and / or its body temperature is an extremely low temperature, the compensation energy for the current time period can be determined based on the preset energy corresponding to the body temperature of the aerosol generating device. For example, if the body temperature of the aerosol generating device is 35℃, its corresponding preset energy is -0.1J. Therefore, the compensation energy for the current time period is -0.1J, meaning that the energy supply needs to be reduced during the current time period. If the body temperature of the aerosol generating device is 5℃, its corresponding preset energy is 0.2J. Therefore, the compensation energy for the current time period is 0.2J, meaning that the energy supply needs to be increased during the current time period.

[0114] In some embodiments, step S11 above, "determining the compensation energy for the current time period based on the actual target energy of the previous time period, the energy supplied in the previous time period, and the preset energy corresponding to the body temperature of the aerosol generating device," specifically includes:

[0115] S113: If the current time period is not the first time period, the compensation energy for the current time period shall be determined based on the actual target energy of the previous time period, the energy supplied in the previous time period, and the preset energy corresponding to the body temperature of the aerosol generating device; wherein, the first time period is the first time period after the heater starts heating.

[0116] As mentioned above, if the current time is not the first time period, then the previous time period exists. The compensation energy for the current time period can be determined based on the actual target energy and the supplied energy of the previous time period. Furthermore, if the aerosol generating device is in an abnormal temperature state and / or its body temperature is an abnormal temperature, the compensation energy for the current time period is determined based on the actual target energy, the supplied energy, and the preset energy corresponding to the body temperature of the aerosol generating device. For example, if the current time period is the i-th time period, and i ≥ 2, the actual target energy for the (i-1)-th time period is E1, the supplied energy for the (i-1)-th time period is E2, and the preset energy corresponding to the body temperature of the aerosol generating device is E3, then the compensation energy for the i-th time period is E4 = (E1 - E2) + E3. If, under the same conditions, the current time period is the (i+1)th time period, the actual target energy of the i-th time period is E5, and the energy already supplied in the i-th time period is E6, then the compensation energy of the (i+1)th time period is E7 = (E5 - E6) + E3.

[0117] This embodiment adjusts the preset target energy for the current time period through energy compensation, and determines the compensation energy for each time period based on the body temperature of the aerosol generating device. On the one hand, it enables timely correction of energy errors, and subsequently supplies energy according to the actual target energy for the current time period, ensuring that the energy output of the power supply in each time period during the entire heating process is consistent with the preset target energy for each time period. This makes the real-time temperature of the heater more consistent with the required temperature curve, thereby improving the aerosol's taste and making it more consistent. On the other hand, it not only reduces the impact of the device's body temperature on the heat received by the aerosol generating matrix, but also ensures that the heat received by the aerosol generating matrix is ​​consistent with its actual required target heat, guaranteeing the aerosol's inhalation taste and the user's experience under different usage environments.

[0118] In some embodiments, if the current time period is in the preheating stage and is not the first time period, the compensation energy for the current time period is determined based on the actual energy supply of the previous time period and the preset temperature corresponding to the body temperature of the aerosol generating device; if the current time period is not in the preheating stage and is not the first time period, the compensation energy for the current time period is determined only based on the actual energy supply of the previous time period.

[0119] In this embodiment, during the preheating stage, the power supply provides energy to the heater at maximum power to help the heater quickly reach the target temperature. If the body temperature of the aerosol generating device is low, it indicates that the heater itself is at a low temperature before heating is started. The heating process of the heater requires more energy. Therefore, the compensation energy for the current time period is determined based on the preset energy corresponding to the actual body temperature of the aerosol generating device and the actual energy supply in the previous time period to ensure that the aerosol generating matrix can be fully baked without affecting its inhalation taste. For example, if the body temperature is 15°C, it is considered that the aerosol generating device is in a generally cold environment. Then, the energy deviation of each time period in the preheating stage corresponding to the previous time period is added by 0.1J to obtain the compensation energy for the current time period. If the body temperature is 5°C, it is considered that the aerosol generating device is in a relatively cold environment. Then, the energy deviation of each time period in the preheating stage corresponding to the previous time period is added by 0.2J to obtain the compensation energy for the current time period.

[0120] If the aerosol generator's body temperature is high, it indicates that the heater itself was already at a high temperature before heating began. Compared to a normal or lower body temperature, less energy is needed for the heater to rapidly reach the target temperature. Therefore, based on the actual body temperature of the aerosol generator, the energy deviation of each time period within the preheating stage corresponding to the previous time period is adjusted downwards to obtain the compensating energy for the current time period. This limits the total energy output of the power supply and avoids the problem of poor aerosol inhalation taste due to a large difference between the power supply output energy and the actual energy required by the heater. For example, if the body temperature is 35 degrees Celsius, it is considered that the aerosol generator is in a generally hot environment. In this case, the energy deviation of each time period within the preheating stage corresponding to the previous time period is reduced by 0.1J to obtain the compensating energy for the current time period. If the body temperature is 45 degrees Celsius, it is considered that the aerosol generator is in a relatively hot environment. In this case, the energy deviation of each time period within the preheating stage corresponding to the previous time period is reduced by 0.2J to obtain the compensating energy for the current time period.

[0121] If the aerosol generator's body temperature is at room temperature, the energy required for the heater to reach the target temperature remains unchanged. Therefore, there is no need to adjust the energy deviation between each time period and the previous time period during the preheating phase at room temperature. For example, if the body temperature is 25 degrees Celsius, and the aerosol generator is considered to be in a room temperature environment, then the compensation energy for the current time period is determined only based on the actual energy supply of the previous time period.

[0122] Because the heater needs to rapidly heat up from its own temperature to the target temperature during the preheating phase, the device body temperature has a significant impact on the energy received by the heater during this phase. However, during the suction phase, the heater has already reached the target temperature, and its temperature fluctuates around the target temperature, so the device body temperature has a smaller impact on the energy received by the heater. Therefore, by adjusting the target energy for the current time period through energy compensation based on the power supplied in the previous time period, the actual target energy in the previous time period, and the preset energy corresponding to the device body temperature of the aerosol generator, the influence of the device body temperature on the heat received by the aerosol generating matrix can be reduced. This ensures that the energy received by the heater matches its actual target energy requirement, guaranteeing the aerosol suction taste and user experience under different usage environments.

[0123] S20: Determine the actual target energy for the current time period based on the preset target energy and the compensation energy for the current time period.

[0124] As can be seen from the above, the compensation energy for the current time period is determined based on the actual energy supply in the previous time period and / or the preset energy corresponding to the body temperature of the aerosol generating device.

[0125] If the compensation energy for the current time period is negative, it means that the power supply provided to the heater in the previous time period was more than the actual target energy in the previous time period. Therefore, regardless of whether the body temperature of the aerosol generating device is high or low, the corresponding compensation energy needs to be reduced in the current time period to ensure that the total energy provided by the power supply in the previous time period and the current time period is consistent with the target energy required by the heater. For example, if the body temperature of the aerosol generating device is 15℃, its corresponding preset energy is energy_pre[1]=0.1J, the energy deviation of the previous time period section_time[1] (0s, 10s) energy_diff[1]=-20J, then the compensation energy for the current time period is energy_com[1]=energy_diff[1]+energy_pre[1]=-19.9J, the preset target energy value of the current time period section_time[2] (10s, 30s) energy_set[2]=240J, and the actual target energy value of the current time period is energ y_set[2]'=energy_set[2]+energy_com[1]=220.1(J); In some embodiments, under the above circumstances, if the body temperature of the aerosol generating device is 35℃, its corresponding preset energy is energy_pre[2]=-0.1J, then the compensation energy for the current time period is energy_com[2]=energy_diff[1]+energy_pre[2]=-20.1J, and thus the actual target energy for the current time period is energy_set[2]”=energy_set[2]+energy_com[2]=219.9(J).

[0126] If the compensation energy for the current time period is positive, it means that the energy supplied to the heater in the previous time period is less than the actual target energy in the previous time period. Therefore, regardless of whether the body temperature of the aerosol generating device is high or low, the corresponding compensation energy needs to be increased in the current time period to ensure that the total energy supplied by the power supply in the previous time period and the current time period is consistent with the target energy required by the heater. For example, if the body temperature of the aerosol generating device is 15℃, its corresponding preset energy is energy_pre[1]=0.1J, the energy deviation of the previous time period section_time[3] (30s, 40s) energy_diff[2]=10J, then the compensation energy for the current time period energy_com[3]=energy_diff[2]+energy_pre[1]=10.1J, the preset target energy value of the current time period section_time[4] (40s, 50s) energy_set[4]=180J, then the actual target energy value for the current time period is energy_set[4]=180J. rgy_set[4]'=energy_set[4]+energy_com[3]=190.1(J); In some embodiments, in this case, if the body temperature of the aerosol generating device is 35℃, its corresponding preset energy is energy_pre[2]=-0.1J, then the compensation energy for the current time period is energy_com[4]=energy_diff[2]+energy_pre[2]=9.9J, and thus the actual target energy for the current time period is energy_set[4]”=energy_set[4]+energy_com[4]=189.9J.

[0127] After the heater starts heating, the compensation energy for the current time period is obtained by combining the energy supplied to the heater in the previous time period, the actual target energy of the previous time period, and / or the preset energy corresponding to the body temperature of the aerosol generating device. The preset target energy for the current time period is then adjusted based on this compensation energy. If the compensation energy is negative, it indicates that the corresponding compensation energy needs to be reduced from the preset target energy for the current time period; if the compensation energy is positive, it indicates that the corresponding compensation energy needs to be increased from the preset target energy for the current time period. By supplying energy to the heater in time periods and adjusting the target energy required by the heater in the current time period based on the specific energy supply in the previous time period and / or the preset energy corresponding to the body temperature, it is possible to ensure that the energy output by the power supply in each time period is consistent with the preset target energy for each time period throughout the entire heating process. This enhances the consistency between the real-time temperature of the heater and the required temperature curve during the heating process, thereby improving the aerosol taste and making the taste more consistent.

[0128] S30: Based on the actual target energy for the current time period, control the power supply to supply energy to the heater so that the total energy supplied to the heater within the preset duration corresponding to the current time period approaches the actual target energy for the current time period.

[0129] In some embodiments, the preset durations corresponding to different time periods are not entirely the same. For example, the time period section_time[1] is (0s, 10s), and its preset duration is 10s. The time period section_time[2] is (10s, 30s), and its preset duration is 20s. It can be seen that the preset duration corresponding to the current time period is the time span of the current time period. The total energy supplied to the heater within the corresponding preset duration is the total energy provided by the power supply within the preset duration. For example, the time period section_time[1] is (0s, 10s), and its preset duration is 10s. The total energy supplied to the heater within the preset duration of this time period is the total energy provided by the power supply to the heater within the 10s duration of the time period (0s, 10s). It can be understood that the total energy supplied to the heater within the preset duration corresponding to the current time period is the total energy provided by the power supply to the heater within the preset duration corresponding to the current time period.

[0130] In some embodiments, the actual target energy for the current time period is determined based on the compensation energy for the current time period, and the compensation energy for non-first time periods is determined based on the supplied energy and the actual target energy for the previous time period, as described in the above description of step S111. In some embodiments, the compensation energy for the first time period is determined based on the preset energy corresponding to the body temperature of the aerosol generating device, as described in the above description of step S112, and the compensation energy for non-first time periods is determined based on the supplied energy, the actual target energy for the previous time period, and the preset energy corresponding to the body temperature of the aerosol generating device, as described in the above description of step S113.

[0131] Understandably, supplying energy according to the actual target energy for the current time period ensures that the energy supplied to the heater within the preset duration of the current time period is close to the actual target energy for that time period. This timely correction of energy deviations ensures that the energy output of the power supply in each time period during the entire heating process is consistent with the preset target energy for each time period. Consequently, the real-time temperature of the heater tends to match the required temperature curve, which is beneficial for improving the aerosol's flavor and making the taste more consistent.

[0132] In addition, in some embodiments, based on the energy deviation determined according to the energy supply in the previous time period, the energy deviation in each time period is fine-tuned according to the body temperature of the aerosol generating device to obtain the compensation energy corresponding to each time period. This can reduce the impact of the body temperature on the heat received by the aerosol generating matrix and ensure the aerosol inhalation taste in different usage scenarios.

[0133] In some embodiments, step S30 specifically includes:

[0134] S31: Based on the actual target energy for the current time period, control the power supply to provide energy to the heater.

[0135] Considering that the preset duration of the current time period is fixed, in order to supply the actual target energy within the current time period, in this embodiment, the power supplied to the heater is adjusted according to the actual target energy. For example, if the actual target energy value for the current time period is smaller than the target energy value before adjustment, then regardless of whether the aerosol generating device body temperature is high or low, the power supplied to the heater must be reduced or maintained at its original power within the current time period to ensure that the energy supplied to the heater within the preset duration of the current time period approaches the actual target energy for the current time period. If the actual target energy value for the current time period is larger than the target energy value before adjustment, then regardless of whether the aerosol generating device body temperature is high or low, the power supplied to the heater must be increased within the current time period to ensure that the energy supplied to the heater within the preset duration of the current time period approaches the actual target energy for the current time period.

[0136] In this embodiment, adjusting the power supply based on the actual target energy for the current time period ensures that the target energy is supplied within the preset duration of the current time period. This avoids the inability to supply energy for the current time period due to insufficient preset duration, and helps to ensure that the energy output of the power supply in each time period during the entire heating process is consistent with the preset target energy for each time period. This makes the real-time temperature of the heater more consistent with the required temperature curve, thereby improving the aerosol's texture and making the taste more consistent.

[0137] In some embodiments, the method S100 further includes:

[0138] S40: During the current time period, control the power supply to start the heater to supply energy for the current time period, and accumulate the energy supplied during the current time period.

[0139] Upon receiving the start heating command, the controller controls the power supply to provide energy to the heater and calculates the cumulative energy supplied to the heater from the start time of the current time period. The calculated amount is the energy supplied for the current time period, which serves as the basis for subsequent control of the energy supply for the current time period.

[0140] In some embodiments, step S40 specifically includes:

[0141] S41: Starting from the current time period, calculate the energy supplied by the power source to the heater in period T to obtain the periodic energy.

[0142] Here, the period T is the energy calculation period, meaning that energy is accumulated every T seconds from the start of the current time period. In some embodiments, a fixed calculation time interval tick_time can be preset. During this time interval, the controller accumulates the energy supplied to the heater by the power supply within the current calculation time interval. This time interval is the period T. The current time period can be divided into multiple periods using this time interval. The controller calculates the energy supplied to the heater by the power supply according to the period, and the calculated energy is the periodic energy.

[0143] S42: Accumulate the energy from multiple cycles to obtain the energy supplied in the current time period.

[0144] The energy supplied to the heater within period T is also called periodic energy. The energy supplied during the current period is calculated by summing all periodic energies from the first cycle of the current time period to the current cycle. In some embodiments, the controller calculates the periodic energy using electrical signal parameters corresponding to period T, including the heater's voltage and current. For example:

[0145] Within period T, the periodic energy =U*I*T, where U is voltage, I is current, and T is the control period, representing the cycle energy over multiple periods T. The total energy is obtained by adding them up. ,For example:

[0146]

[0147] in, This represents the total energy supplied by the power source to the heater during the current time period (t1, t2). j is the period number, indicating the j-th period. The first period included in the current time period (t1, t2) is t3, and the last period is t4. This represents the periodic energy of the j-th period.

[0148] In this embodiment, the total energy can be calculated more accurately by accumulating the energy over the current time period, thus controlling the energy supplied to the heater more effectively and reducing the impact on the aerosol taste caused by the poor consistency between the power supply output energy and the actual energy required by the heater.

[0149] In some embodiments, the period T ranges from 1ms to 10ms, and / or the preset duration of the current time period is at least 100 times the period T.

[0150] The period T is a pre-set calculation time interval, ranging from 1ms to 10ms. The controller calculates the energy supplied by the power source based on period T. It is understandable that the shorter the calculation time interval, the higher the accuracy of the energy calculation. Therefore, setting the period T to a range of 1ms to 10ms allows for accurate calculation of the total energy supplied to the heater, which is beneficial for the accuracy of energy control.

[0151] The preset duration of the current time period is at least 100 times the period T. That is, the preset duration of the current time period ranges from 0.1s to 1s. Here, the current time period is any time period in the mapping table between time periods and target energies; that is, the preset duration of each time period in the mapping table between time periods and target energies ranges from 0.1s to 1s.

[0152] The inventors of this application discovered that when the preset duration is less than 0.1s, the control power supply provides energy segmented according to the mapping table, resulting in high control frequency, computational complexity, and high hardware requirements. When the preset duration is greater than 1s, the control power supply provides energy segmented according to the mapping table, but the control frequency is low, leading to a deviation between the actual temperature of the heater and the desired temperature curve. Therefore, when the preset duration is within the range of 0.1s to 1s, providing energy segmented according to the mapping table not only helps the actual temperature of the heater to approach the desired temperature curve but also reduces the hardware requirements.

[0153] S50: If the energy supplied in the current time period is greater than or equal to the actual target energy in the current time period, then control the power supply to stop the energy supply in the current time period.

[0154] After the aerosol generating device starts heating, the controller performs periodic energy calculation according to a predetermined period T, accumulates the calculated periodic energy to obtain the energy supplied by the power supply to the heater in the current time period, compares the supplied energy in the current time period with the actual target energy in the current time period, and confirms whether the supplied energy exceeds the actual target energy.

[0155] If the energy supplied in the current time period is greater than or equal to the actual target energy, it indicates that the supplied energy has exceeded the preset energy limit, meaning that the power supply is providing more energy in the current time period. Therefore, the controller controls the power supply to change the state of energy supply to the heater. In some embodiments, the above-mentioned state change operation is to control the power supply to stop supplying energy to the heater; in some embodiments, the above-mentioned state change operation may also be to control the power supply to reduce the energy supply to the heater.

[0156] For example: the energy supplied at the current time t1 within the current time period is The actual target energy for the current time period is ,like ≥ If the power supply is interrupted, the power supply to the heater will stop.

[0157] By adjusting the energy supply status based on the relationship between the supplied energy and the actual target energy, the power supply is controlled to stop supplying energy when the supplied energy exceeds the actual target energy. This controls the growth trend of the supplied energy, reduces the difference between the supplied energy and the actual target energy in the current time period, and effectively limits the energy supply of the power supply in the current time period. This helps to make the energy output of the power supply in each time period during the entire heating process more consistent with the pre-set target energy for each time period.

[0158] S60: If the energy supplied in the current time period is less than the actual target energy in the current time period, the control power supply continues to supply energy in the current time period until the energy supplied in the current time period is greater than or equal to the actual target energy in the current time period or the current time period ends.

[0159] During the process of the power supply providing energy to the heater, there are situations where the energy supplied at the current moment is greater than the actual target energy for the current time period, and there are also situations where the energy supplied is less than the actual target energy. If the energy supplied is less than the actual target energy, it means that the energy supplied at the current moment has not reached the preset energy upper limit. The power supply needs to continue supplying energy to the heater so that the energy supplied for the current time period can approach or reach the actual target energy value for the current time period, thereby reducing the difference between the energy supplied for the current time period and the actual target energy, which is conducive to the energy supplied for the current time period approaching the actual target energy.

[0160] In some embodiments, if the current time period ends, regardless of whether the actual target energy for the current time period has been supplied, the energy supply for the current time period is stopped, and the energy supply for the next time period begins. That is, the energy is supplied according to the actual target energy for the next time period, so that the energy supplied to the heater within the preset duration of the next time period tends to be consistent with the actual target energy for the next time period. In this way, it is beneficial to make the energy output by the power supply in each time period during the entire heating process generally consistent with the preset target energy for each time period.

[0161] In summary, the embodiments of this application continuously adjust and compensate for the target energy of the current time period based on the actual energy supply situation, so that the energy output by the power supply in each time period during the entire heating process tends to be consistent with the preset target energy of each time period. This makes the real-time temperature of the heater more consistent with the required temperature curve, thereby improving the aerosol's texture and making the taste more consistent.

[0162] Furthermore, based on the aforementioned continuous adjustment and compensation of energy deviation for the current time period according to the actual energy supply, the compensation energy corresponding to each time period is determined by combining the body temperature of the aerosol generating device. This can reduce the impact of the body temperature on the heat received by the aerosol generating matrix, ensuring that the energy received by the aerosol generating matrix is ​​consistent with its actual target energy, and ensuring the aerosol inhalation taste and user experience under different usage environments.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A control method applied to an aerosol generating device, characterized in that, The aerosol generating device includes a heater and a power source. The heater is used to heat the aerosol forming matrix to generate aerosols, and the power source is used to provide power to the heater. The control method includes: Determine the preset target energy and compensation energy for the current time period; Based on the preset target energy and the compensation energy for the current time period, determine the actual target energy for the current time period; Based on the actual target energy for the current time period, the power supply is controlled to supply energy to the heater so that the total energy supplied to the heater within the preset duration corresponding to the current time period approaches the actual target energy for the current time period.

2. The method according to claim 1, characterized in that, Determining the compensation energy for the current time period includes: The compensation energy for the current time period is determined based on the actual target energy and the supplied energy for the previous time period, and / or based on the preset energy corresponding to the body temperature of the aerosol generating device.

3. The method according to claim 2, characterized in that, The step of determining the compensation energy for the current time period based on the actual target energy and the supplied energy of the previous time period, or based on the preset energy corresponding to the body temperature of the aerosol generating device, includes: If the current time period is not the first time period, the compensation energy for the current time period is determined based on the actual target energy of the previous time period and the energy supplied in the previous time period; wherein, the first time period is the first time period after the heater starts heating, and the actual target energy of the first time period is the preset target energy of the first time period. If the current time period is the first time period, then the compensation energy for the current time period is determined based on the preset energy corresponding to the body temperature of the aerosol generating device.

4. The method according to claim 3, characterized in that, The step of determining the compensation energy for the current time period based on the actual target energy and the energy supplied in the previous time period includes: The compensation energy for the current time period is determined based on the difference between the energy supplied in the previous time period and the actual target energy in the previous time period.

5. The method according to claim 1, characterized in that, Before determining the preset target energy and compensation energy for the current time period, the following steps are also included: A mapping table is pre-established, showing multiple time periods, the preset duration of each time period, and the preset target energy for each time period.

6. The method according to claim 1, characterized in that, The method includes: During the current time period, the power supply is controlled to start the energy supply to the heater for the current time period, and the energy supplied during the current time period is accumulated; If the energy supplied in the current time period is greater than or equal to the actual target energy in the current time period, then control the power supply to stop supplying energy in the current time period. If the energy supplied in the current time period is less than the actual target energy in the current time period, the power supply is controlled to continue supplying energy in the current time period until the energy supplied in the current time period is greater than or equal to the actual target energy in the current time period or the current time period ends.

7. The method according to claim 6, characterized in that, The cumulative energy supplied during the current time period includes: Starting from the current time period, the energy supplied by the power source to the heater is calculated with a period T to obtain the periodic energy; By accumulating the energy from multiple cycles, the energy supplied for the current time period is obtained.

8. The method according to claim 7, characterized in that, The period T is in the range of 1ms to 10ms, and / or the preset duration of the current time period is at least 100 times the period T.

9. The method according to claim 1, characterized in that, The step of controlling the power source to supply energy to the heater based on the actual target energy for the current time period includes: The power supplied to the heater is adjusted based on the actual target energy for the current time period.

10. An aerosol generating device, characterized in that, include: A heater for heating an aerosol-forming article to generate an aerosol; One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including a control method for performing any one of claims 1 to 9.

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