Control method of aerosol generating equipment, aerosol generating equipment and system

Abstract

The invention relates to the technical field of aerosol generation equipment, and provides a control method of aerosol generation equipment, a control device of the aerosol generation equipment, the aerosol generation equipment and an aerosol generation system. According to the control method of the aerosol generation equipment, when target working current appears twice through determining a real-time current value during preheating, an aerosol generation assembly can be heated to a temperature matched with the aerosol generation assembly according to a first driving signal, so that the aerosol generation assembly reaches an optimal heating temperature; the invention provides a new scheme capable of widening the application range of aerosol generating equipment.

Description

Technical Field

[0001] This application belongs to the technical field of aerosol generating devices, and particularly relates to a control method for an aerosol generating device, a control device for an aerosol generating device, an aerosol generating device, and an aerosol generation system. Background Art

[0002] An aerosol generating device can be used with an aerosol generation component, heat the aerosol generation component, and then atomize the substance in the aerosol generation component. In actual use, different aerosol generation components are configured with different sensors or different aerosol generating substances, resulting in a large difference in the optimal heating temperature between different aerosol generation components.

[0003] However, if the aerosol generation component cannot reach the optimal heating temperature, the substance in the aerosol generation component cannot be fully heated, which easily leads to waste of the substance in the aerosol generation component or affects the user experience. Therefore, there is an urgent need for a new solution that can broaden the applicable range of aerosol generating devices. Summary of the Invention

[0004] The purpose of this application is to provide a control method for an aerosol generating device, a control device for an aerosol generating device, an aerosol generating device, and an aerosol generation system, aiming to provide a new solution that can broaden the applicable range of aerosol generating devices.

[0005] In the first aspect of the embodiments of this application, a control method for an aerosol generating device is provided. The aerosol generating device is used to carry an aerosol generation component, and the control method includes:

[0006] In response to a preset instruction to heat the aerosol generation component, operate according to a preheating drive signal to preheat the aerosol generation component;

[0007] During the preheating of the aerosol generation component, detect the real-time current value of the aerosol generating device;

[0008] When it is determined that the real-time current value appears twice at the target operating current value, operate according to the first drive signal to heat the aerosol generation component; wherein, the duty cycle of the first drive signal is different from the duty cycle of the preheating drive signal.

[0009] In the second aspect of the embodiments of this application, a control device for an aerosol generating device is provided. The aerosol generating device is used to carry an aerosol generation component, and the control device includes:

[0010] A first drive unit, configured to respond to a preset instruction to heat the aerosol generation component, operate according to a preheating drive signal, and preheat the aerosol generation component;

[0011] A detection unit, configured to detect a real-time current value of the aerosol generating device during preheating of the aerosol generating component;

[0012] A second driving unit, configured to operate according to a first driving signal to heat the aerosol generating component when it is determined that the real-time current value appears twice at a target operating current value; wherein, the duty ratio of the first driving signal is different from the duty ratio of the preheating driving signal.

[0013] A third aspect of the embodiments of the present application provides an aerosol generating device, including: a memory, a processor, and a computer program stored in the memory and executable on the aerosol generating device. When the processor executes the computer program, the steps of the control method of the aerosol generating device provided in the first aspect as described above are implemented.

[0014] A fourth aspect of the embodiments of the present application provides an aerosol generating system, including an aerosol generating component and the aerosol generating device provided in the third aspect as described above.

[0015] A fifth aspect of the embodiments of the present application provides a computer storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the control method of the aerosol generating device provided in the first aspect as described above are implemented.

[0016] The beneficial effects of the embodiments of the present invention compared with the prior art are:

[0017] A control method for an aerosol generating device provided above is applied to an aerosol generating device, wherein the aerosol generating device is used to carry an aerosol generating component. The aerosol generating device responds to a preset instruction to heat the aerosol generating component and operates according to a preheating drive signal to preheat the aerosol generating component. Since when the aerosol generating device heats the aerosol generating component, the real-time current value of the aerosol generating device can represent the heating effect of the aerosol generating device on the aerosol generating component, that is, it can represent the matching degree between the aerosol generating device and the aerosol generating component. Based on this, during the preheating process of the aerosol generating component, the real-time current value of the aerosol generating device can be detected. When it is determined that the real-time current value appears twice at the target working current value, it indicates that the currently carried aerosol generating component of the aerosol generating device is compatible with it, and then it can operate according to the first drive signal to heat the aerosol generating component. Here, the reason for making the duty cycle of the first drive signal different from that of the preheating drive signal is that when preheating the aerosol generating component, it is necessary to make the real-time current value of the aerosol generating device represent the heating effect of the aerosol generating device on the aerosol generating component, and operating according to the first drive signal to heat the aerosol generating component is to make the heating temperature of the aerosol generating device compatible with the aerosol generating component. In this way, when preheating, by determining that the real-time current value appears twice at the target working current, operating according to the first drive signal, the aerosol generating component can be heated to a matching temperature, and then the aerosol generating component can reach the optimal heating temperature, providing a new solution that can broaden the applicable range of the aerosol generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the use of the aerosol generating device and the aerosol generating component in the embodiment of the present application;

[0019] Figure 2 Schematic diagram of the change curve of the permeability of the receptor of the aerosol generating component and temperature in the embodiment of the present application;

[0020] Figure 3 Schematic diagram of the change relationship between the working current and time of the aerosol generating device in the embodiment of the present application;

[0021] Figure 4 Flowchart of the implementation of a control method for an aerosol generating device provided in the embodiment of the present application;

[0022] Figure 5 Flowchart of the implementation of a control method for an aerosol generating device provided in another embodiment of the present application;

[0023] Figure 6Schematic diagram of the change in the real-time current value of the aerosol generating device in the embodiment of the present application;

[0024] Figure 7 Schematic diagram of the structure of a control device for an aerosol generating device provided in an embodiment of the present application;

[0025] Figure 8 Schematic diagram of the structure of an aerosol generating device provided in an embodiment of the present application. Detailed implementation manners

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] It should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0028] Exemplarily, the aerosol generating device can be used with an aerosol generating component, heat the aerosol generating component, and then atomize the substances in the aerosol generating component. In related technical solutions, the heating methods of the aerosol generating device for the aerosol generating component are divided into a resistive heating method and an electromagnetic heating method.

[0029] For example, in the resistive heating method, the heating component provided in the aerosol generating device is a resistive heating component, that is, the heating component directly converts electrical energy into heat energy in response to a control signal to heat the aerosol generating component carried on the aerosol generating device.

[0030] For another example, in the electromagnetic heating method, a magnetic eddy current heating component is carried in the aerosol generating device. When the aerosol generating device is carrying the aerosol generating component, the magnetic eddy current heating component is made to act on the receptor in the aerosol generating component by outputting a control signal to achieve heating of the aerosol generating component.

[0031] However, due to the differences in the heating methods of different aerosol generating devices for the aerosol generating component, the heating effect on some mismatched aerosol generating components is not good. For example, the aerosol generating component cannot be fully heated, thus wasting the substances in the aerosol generating component. For another example, the aerosol generating device cannot heat some aerosol generating components to the optimal operating temperature, affecting the user experience.

[0032] To solve the above technical problems, this embodiment provides a control method for an aerosol generating device, which is applied to the aerosol generating device. The aerosol generating device is used to carry an aerosol generating component. The aerosol generating device responds to a preset instruction to heat the aerosol generating component and operates according to a preheating drive signal to preheat the aerosol generating component. Since when the aerosol generating device heats the aerosol generating component, the real-time current value of the aerosol generating device can represent the heating effect of the aerosol generating device on the aerosol generating component, that is, it can represent the matching degree between the aerosol generating device and the aerosol generating component. Based on this, during the preheating of the aerosol generating component, the real-time current value of the aerosol generating device can be detected. When it is determined that the real-time current value appears twice at the target working current value, it indicates that the aerosol generating component currently carried by the aerosol generating device is adapted to it. Then, the aerosol generating component can be heated by operating according to the first drive signal. Here, the reason for making the duty cycle of the first drive signal different from that of the preheating drive signal is that when preheating the aerosol generating component, the real-time current value of the aerosol generating device needs to represent the heating effect of the aerosol generating device on the aerosol generating component, and operating according to the first drive signal to heat the aerosol generating component is to make the heating temperature of the aerosol generating device adapt to the aerosol generating component. In this way, when preheating, by determining that the real-time current value appears twice at the target working current, operating according to the first drive signal can heat the aerosol generating component to a matching temperature, and then make the aerosol generating component reach the optimal heating temperature, providing a new solution that can broaden the applicable range of the aerosol generating device.

[0033] The control method for the aerosol generating device provided in this embodiment has the aerosol generating device as the execution subject. Specifically, it can be the control unit MCU or the processing unit CPU in the aerosol generating device. In actual use, the aerosol generating device or the control unit MCU or the processing unit CPU in the aerosol generating device can implement the automatic adaptation of the aerosol generating device to the heating temperature corresponding to the aerosol generating component by executing the control method for the aerosol generating device provided in this embodiment.

[0034] It should be noted that in all embodiments of the present application, the aerosol generating device is used to carry an aerosol generating component, and the aerosol generating device includes a heating component. Here, the heating component can be a resistive heating component and / or an electromagnetic heating component, and there is no limitation here.

[0035] Figure 1 Shows a schematic diagram of the use of the aerosol generating device and the aerosol generating component in the embodiment of the present application. As Figure 1As shown, the aerosol generating device 10 can be used to carry the aerosol generating component 20. Among them, the aerosol generating device 10 includes a heating component. In a specific implementation, the heating component can be an electrothermal sheet with resistive heating or a magnetic heating coil, which is not limited here.

[0036] Exemplarily, in Figure 1 the example shown, the heating component may specifically include a coil 11. The heating component may specifically further include a class F RF circuit (not shown in the figure), that is, a class F inverter. By providing a high-frequency control signal to the class F inverter, such as a control signal with a frequency between 1 megahertz and 40 megahertz, a high-frequency alternating electromagnetic field can be provided through the coil 11. When the aerosol generating component 20 is carried in the aerosol generating device 10, the aerosol generating component 20 is equivalent to being surrounded by the coil 11, and the receptor 21 in the aerosol generating component 20 can be regarded as a load, forming an RLC load resonance circuit with the RF circuit. Here, the receptor 21 generates eddy current heat in the high-frequency alternating electromagnetic field environment provided by the coil 11, causing the overall temperature of the aerosol generating component 20 to rise. When the aerosol generating component 20 and the aerosol generating device 10 are mutually adapted, the aerosol generating device 10 can control the magnetic field intensity of the coil 11 to make the receptor 21 in the aerosol generating component 20 continuously generate heat as a load, thereby reaching a temperature that can cause the aerosol generating matrix 22 to carbonize and the aerosol former to volatilize.

[0037] As Figure 2 shown, it shows a schematic diagram of the change curve of the relative magnetic permeability of the receptor of the aerosol generating component in the embodiment of the present application with temperature. Combining Figure 1 with Figure 2 , in use, the receptor 21 generates eddy current heat in the high-frequency alternating electromagnetic field environment provided by the coil 11, and the relative magnetic permeability of the receptor 21 in the aerosol generating component 20 continuously increases as the temperature rises. As Figure 2 shown, when the temperature rises to Tm, the relative magnetic permeability μ of the receptor 21 reaches the peak value, that is, the relative magnetic permeability at point M is μmax. As the temperature further rises, the relative magnetic permeability μ begins to rapidly decrease until it exceeds the Curie temperature point Tc and completely loses magnetism.

[0038] Referring to Figure 3 , Figure 3 shown, it shows a schematic diagram of the change relationship between the working current and time of the aerosol generating device in the embodiment of the present application. Combining Figures 1 to 3 , the aerosol generating device 10 carrying the aerosol generating component 20 can be regarded as a magnetic excitation system. In this magnetic excitation system, as the relative magnetic permeability μ rises, the working current I of the aerosol generating device 10 DC gradually decreases. When the working current of the aerosol generating device 10 drops to the minimum working current value Imin When Figure 2 The relative permeability reversal point M corresponds to the point when the working current of the aerosol generating device 10 is detected to drop to the minimum working current value I min When , the relative magnetic permeability μ of the susceptor 21 is μmax.

[0039] Based on this, the peak characteristic of the relative magnetic permeability μ of the sensor 21 can be used to characterize the temperature change characteristic of the sensor 21, that is, it can be used as a basis for the sol generating device 10 to automatically identify whether the aerosol generating component 20 carried is suitable. Here, in the magnetic excitation system consisting of the aerosol generating device 10 and the aerosol generating component 20, the change in relative magnetic permeability will cause the change in inductance, and the change in inductance will affect the resonant frequency, thereby causing the impedance of the power supply circuit of the heating component in the aerosol generating device 10 to change, and finally causing the working current of the aerosol generating device 10 to change. In this way, based on Figure 2 The relative permeability versus temperature shown, and Figure 3 The working current value change trend and the minimum working current I min The corresponding relationship with the maximum relative magnetic permeability μmax can be used as a basis for judging whether the aerosol generating device 10 and the aerosol generating assembly 20 are compatible. That is, when the aerosol generating device 10 is equipped with the aerosol generating assembly 20, by detecting the working current change trend / real-time current value of the aerosol generating device 10, it can be used to identify whether the aerosol generating assembly 20 has the relative magnetic permeability peak characteristic or relative magnetic permeability change characteristic that is compatible with the aerosol generating device 10, and then determine whether the aerosol generating assembly 20 is a target aerosol generating assembly that is compatible with the aerosol generating device 10.

[0040] Combination Figure 2 and Figure 3 , as an example, let the temperature corresponding to the relative magnetic permeability reversal point M be Tm, and the optimal temperature of the target aerosol generating component can be Ta / Tb, that is, the target temperature. Here, for the target aerosol generating component, since its corresponding sensor has a relative magnetic permeability peak characteristic or a relative magnetic permeability change characteristic adapted to the aerosol generating device, the temperature corresponding to the magnetic permeability reversal point M is Tm, which is a known temperature. Also, because when setting Ta / Tb, Ta / Tb is set as close to Tm as possible, the temperature measurement can be more accurate and the consistency of different loads can be better. Here, considering the stability requirements of the preset driving strategy, it is usually necessary to add a smaller temperature difference ΔT to the temperature Tm corresponding to the relative magnetic permeability reversal point M. The temperature difference ΔT can be a positive or negative value. That is Figure 2Tb = Tm + ΔT or Ta = Tm - ΔT, because the relative permeability is equal at temperature Ta and temperature Tb. Based on this, both Ta and Tb can be regarded as known temperatures. Taking the optimal temperature as Tb as an example, the optimal temperature Tb is set to a temperature value far from the Curie temperature Tc, because the closer to the Curie temperature point Tc, the weaker the eddy current effect in the sensor, and the higher the energy consumption of the induction coil. This situation will cause the induction coil to overheat and its performance to degrade or even burn out, and it is beneficial for the efficient utilization of electric energy. As a possible implementation method, the difference between the optimal temperature Tb and the Curie temperature Tc can be 100 °C to 150 °C. As a possible implementation method, the temperature difference ΔT can be within a constant numerical range. For example, ΔT satisfies 5 °C ≤ ΔT ≤ 30 °C. For another example, ΔT satisfies 6 °C ≤ ΔT ≤ 15 °C. As a possible implementation method, the temperature difference ΔT can be a dynamic value based on a certain proportionality coefficient α of the temperature Tm corresponding to the relative permeability inversion point M, that is, ΔT = αTm, where α is a constant value preset by the program. For example, α ∈ [0.01, 0.1]. For another example, α ∈ [0.02, 0.05].

[0041] It is easy to understand that, combined with Figure 2 and Figure 3 the example of, in the magnetic excitation system composed of the aerosol generating device and the aerosol generating component, as the relative permeability μ increases, the working current I of the aerosol generating device 10 DC gradually decreases. When the working current of the aerosol generating device 10 drops to the minimum working current value I min at this time, it corresponds to the relative permeability inversion point M in Figure 2 that is, when it is detected that the working current of the aerosol generating device 10 drops to the minimum working current value I min at this time, the relative permeability μ of the sensor 21 is μmax. That is, taking Figure 2 the relative permeability inversion point M in as the symmetry point, the first target current of the aerosol generating device 10 can be detected at the optimal temperature Ta, and the second target current of the aerosol generating device 10 can be detected at the optimal temperature Tb. Since the relative permeability at point A corresponding to the temperature Ta is equal to the relative permeability at point B corresponding to the temperature Tb, based on this, it can be determined that the impedance of the power supply circuit of the heating component in the aerosol generating device 10 is equal at the temperature Ta and the temperature Tb. Therefore, the first target current and the second target current are equal. In this way, during the preheating process of the aerosol generating component, the real-time current value of the aerosol generating device can be detected. When it is determined that the real-time current value appears twice the target working current value, it indicates that the aerosol generating component currently carried by the aerosol generating device is compatible with it, and then it can work according to the first driving signal to heat the aerosol generating component.

[0042] The following takes the control unit MCU in the aerosol generating device as an example of the execution entity, and details a control method for an aerosol generating device provided in this embodiment through specific implementation manners.

[0043] Refer to Figure 4 , Figure 4 which shows a flowchart of the implementation of a control method for an aerosol generating device provided in an embodiment of the present application. As Figure 4 shown, a control method for an aerosol generating device provided in an embodiment of the present application includes:

[0044] 110: In response to a preset instruction to heat the aerosol generating component, operate according to a preheating drive signal to preheat the aerosol generating component.

[0045] In 110, the preset instruction to heat the aerosol generating component generally refers to an operation instruction for controlling the aerosol generating device to heat the currently mounted aerosol generating component.

[0046] In specific implementation, the preset instruction may be automatically triggered when an aerosol generating component is mounted in the aerosol generating device, or may be manually triggered by the user after an aerosol generating component is mounted in the aerosol generating device, and there is no limitation here.

[0047] Exemplarily, on the aerosol generating device, there may be provided an accommodation position or area for mounting the aerosol generating component, such as an accommodation cavity or bin that can accommodate and fix the aerosol generating component. A sensor for detecting whether the aerosol generating component is in place is provided in the accommodation cavity or bin. When the sensor detects that the aerosol generating component is in place, the preset instruction to heat the currently mounted aerosol generating component is triggered. Or, when the sensor detects that the aerosol generating component is in place, and the user triggers the preset instruction to heat the currently mounted aerosol generating component through a control button on the aerosol generating device.

[0048] In this embodiment, the preheating drive signal can be understood as the specific control parameter for preheating the currently mounted aerosol generating component. In specific implementation, the heating component in the aerosol generating device may be a resistive heating component and / or an electromagnetic heating component, and there is no limitation here.

[0049] As an example, when the heating component in the aerosol generating device is an electromagnetic heating component, or a combination of an electromagnetic heating component and a resistive heating component, operating according to the preheating drive signal may include a drive signal for indicating the electromagnetic heating component, such as a PWM wave, and a working current and / or working voltage for indicating the resistive heating component. Here, combination Figures 1 to 3As can be seen from the description, by operating according to the preheating drive signal, the heating component in the aerosol generating device can preheat the currently mounted aerosol generating component according to the preheating control signal. During this process, the coil in the electromagnetic heating component and the receptor in the aerosol generating component form a magnetic excitation system, and thus the real-time operating current of the electromagnetic heating component can be detected as the basis for determining whether the aerosol generating component is the target aerosol generating component.

[0050] As another example, when the heating component in the aerosol generating device is a resistive heating component, the preheating drive signal can specifically be the operating current and / or operating voltage used to indicate the heating component. Here, the heating component is a resistive heating component, specifically a positive temperature coefficient heating sheet. The aerosol generating device supplies power to the heating sheet to make it generate heat, thereby raising the temperature in the accommodation cavity or accommodation bin of the aerosol generating component. It should be noted that in this example, when the heating component in the aerosol generating device is a resistive heating component, a corresponding detection coil can be provided in the aerosol generating device, which can also form a magnetic excitation system with the receptor in the aerosol generating component, and thus the detected real-time operating current can be used as the basis for determining whether the aerosol generating component is the target aerosol generating component.

[0051] Exemplarily, in specific implementation, when the aerosol generating device operates according to the preheating drive signal to preheat the aerosol generating component, it can indicate that a detection environment has been created, that is, the real-time current value of the aerosol generating device can be detected by performing step 120.

[0052] 120: During the preheating of the aerosol generating component, detect the real-time current value of the aerosol generating device.

[0053] In 120, the real-time current value of the aerosol generating device can be used to characterize the changing trend of the relative magnetic permeability of the magnetic excitation system formed by the aerosol generating device and the currently mounted aerosol generating component during the preheating operation. Here, the magnetic excitation system formed by the aerosol generating device and the currently mounted aerosol generating component can be the magnetic excitation system formed by the coil of the heating component in the aerosol generating device and the receptor in the currently mounted aerosol generating component, and / or the magnetic excitation system formed by the detection coil in the aerosol generating device and the receptor in the currently mounted aerosol generating component, which is not limited here.

[0054] In this embodiment, the real-time current value refers to multiple sets of operating current values detected during the preheating operation. In specific implementation, a current detection circuit can be provided in the aerosol generating device, and the real-time current value can be obtained by sampling the operating current of the heating component in the aerosol generating device.

[0055] It is easy to understand that, in combination with Figures 1 to 3 the example description, when the aerosol generation component is adapted to the aerosol generating device, during the preheating process of the aerosol generation component, the real-time current value of the aerosol generating device is the minimum operating current I min at this time, it indicates that the relative permeability of the magnetic excitation system currently composed of the aerosol generating device and the aerosol generation component is the maximum relative permeability μmax. Based on this, it is also possible to obtain the actual operating current value near the minimum operating current I min and then use this actual operating current value as a basis for determining whether the currently installed aerosol generation component is adapted to the aerosol generating device.

[0056] As an embodiment, the preheating drive signal includes a preset pulse width. Correspondingly, step 120 may specifically include: within a preset detection duration, detecting the real-time current value of the aerosol generating device according to the preset pulse width of the preheating drive signal.

[0057] In this embodiment, the preset detection duration can also be understood as the duration of preheating the aerosol generation component and / or the duration of operating according to the preheating drive signal. Here, when the aerosol generating device operates according to the preheating drive signal to preheat the aerosol generation component, it can indicate that a detection environment has been created. By setting the preset detection duration, the real-time current value of the aerosol generating device can be detected in a timely manner to avoid the aerosol generating device being in the detection environment for too long.

[0058] It is easy to understand that since the preheating drive signal includes a preset pulse width, and when detecting the real-time current value of the aerosol generating device, the detection is performed according to the preset pulse width of the preheating drive signal, the detection timing of the real-time current value of the aerosol device corresponds to the preheating pulse width of the preheating control signal. That is, during the process of outputting the preheating control signal to the heating component, multiple real-time current values of the aerosol generating device can be detected according to the preset pulse width of the preheating drive signal.

[0059] Exemplarily, in specific implementation, a corresponding current sampling circuit can be set in the aerosol generating device, and through this current sampling circuit, the operating current of the heating circuit or the detection circuit where the coil is located is detected during the duration of the preheating operation, and then multiple real-time current values are obtained.

[0060] Combined with the above example, when using the current sampling circuit for operating current sampling, the preset detection strategy specifically refers to the synchronization relationship between the sampling timing or sampling frequency of the current sampling circuit and the preheating pulse width triggered by the aerosol generating device. That is, when the aerosol generating device triggers the preheating pulse width, it instructs the current sampling circuit to perform real-time current sampling, and then multiple real-time current values are obtained.

[0061] Taking the preheating control signal as a PWM signal as an example, in the PWM signal, the high level serves as the preheating pulse width. Correspondingly, the duration of the high level is the pulse width duration. Based on this, multiple working current detection values of the aerosol generating device are detected. Specifically, each time the high level of the PWM signal is triggered, the real-time current value of the aerosol generating device is detected to obtain multiple real-time current values.

[0062] Combined with the above example, as an example, the current sampling circuit can be connected to the control unit MCU of the aerosol generating device, and the MCU receives multiple real-time current values.

[0063] 130: When it is determined that the real-time current value appears twice at the target working current value, operate according to the first driving signal to heat the aerosol generating component; wherein, the duty cycle of the first driving signal is different from the duty cycle of the preheating driving signal.

[0064] In 130, when the real-time current value appears twice at the target working current value, it indicates that the aerosol generating component currently carried by the aerosol generating device is compatible with it. Here, the real-time current value can be regarded as multiple current values detected during the preheating process of the aerosol generating component. That is, the real-time current value can be understood as multiple current value data with time sequence.

[0065] In this embodiment, the target working current value refers to the working current value compatible with the currently carried aerosol generating component. The first driving signal refers to the signal used to control the aerosol generating device to operate at the target working current value. Here, when it is determined that the real-time current value appears twice at the target working current value, it can indicate that the aerosol generating device can provide a compatible working current value for the currently carried aerosol generating component, and it can also indicate that there is a compatible relative permeability change characteristic between the aerosol generating device and its currently carried aerosol generating component.

[0066] As an embodiment, the above step 130 includes:

[0067] Determine the minimum current value from the real-time current values. If the acquisition time of the minimum current value is between the acquisition times of the two target working current values, operate according to the first driving signal to heat the aerosol generating component.

[0068] Exemplarily, combined with Figures 1 to 3 the example shown, Figure 2 the relative permeability inversion point M in corresponds to the maximum relative permeability μmax, Figure 3 the minimum working current I in minand the maximum relative permeability μmax. Since the relative permeability at point A corresponding to temperature Ta is equal to the relative permeability at point B corresponding to temperature Tb, based on this, it can be determined that the impedance of the power supply circuit of the heating component in the aerosol generating device 10 is equal at temperature Ta and temperature Tb. Furthermore, it can be determined that the first target current corresponding to the relative permeability at point A is equal to the second target current corresponding to the relative permeability at point B.

[0069] Based on this, the second target current corresponding to the relative permeability at point B corresponding to the optimal temperature Tb can be set as the target working current value. Since the first target current corresponding to the relative permeability at point A is equal to the second target current corresponding to the relative permeability at point B, when the real-time current value appears twice the target working current value, it can be characterized that when the aerosol generating component changes from temperature Ta to temperature Tb, its relative permeability characteristics correspond Figure 2 to the relative permeability change characteristics from point A to point B among them. In Figure 2 , the relative permeability inversion point M and Figure 3 the minimum working current value I in min correspond. In this way, when the minimum current value (i.e., the minimum working current value I min ) is determined in the real-time current value and its acquisition time is between the acquisition times of the two target working current values (the working current values corresponding to point A and point B), it can be determined that the aerosol generating device can provide an appropriate working current value for the currently installed aerosol generating component, and it can also be determined that there is an appropriate relative permeability change characteristic between the aerosol generating device and its currently installed aerosol generating component. Thus, it can work according to the first driving signal to heat the aerosol generating component.

[0070] As an embodiment, the target working current value is calculated based on a preset minimum current value and a preset current increment value. Correspondingly, the above step: working according to the first driving signal to heat the aerosol generating component includes:

[0071] Generating a first driving signal according to the target working current value and working according to the first driving signal to heat the aerosol generating component.

[0072] In this embodiment, there is a preset current increment value between the target working current value and the preset minimum current value. That is, the target working current value is the sum of the minimum current value and the preset current increment value.

[0073] Combined with Figure 2 and Figure 3 , as an example, considering the stability requirement of the preset driving strategy, usually a small temperature difference ΔT is added on the basis of the temperature Tm corresponding to the relative permeability inversion point M. This temperature difference ΔT is the preset current increment value. Here, the relative permeability inversion point M corresponds toFigure 3 the minimum operating current value I min , which is also the preset minimum current value. Based on this, in specific implementation, the minimum operating current value I can be corresponding to the temperature Tm min , the target operating current value is corresponding to the temperature Tb, and according to the corresponding relationship between the temperature Tm, the temperature Tb, and the temperature difference ΔT, the preset current increment value, that is, the current difference ΔI corresponding to the temperature difference ΔT, is set. For example, on the basis of the minimum operating current value I min , by increasing the preset current increment value ΔI, the target operating current value is obtained. Furthermore, on the basis of determining the target operating current value, a corresponding first drive signal is generated, and the aerosol generating component is heated according to the first drive signal, so that the aerosol generating component can be heated to the target temperature, that is, the temperature Tb.

[0074] As an embodiment, after step 130, step 131 and / or step 132 (not shown in the figure) may further be included. In this embodiment, step 131 and step 132 are not executed in a specific order, and step 132 may also be executed after step 131, or step 131 may also be executed after step 132, which is not limited herein. Specifically:

[0075] Step 131: By adjusting the duty cycle of the first drive signal, the heating temperature of the aerosol generating device to the aerosol generating component is within a preset temperature range.

[0076] In step 131, by adjusting the duty cycle of the first drive signal, the operating current of the aerosol generating device can be adjusted, and further, the heating temperature of the aerosol generating device to the aerosol generating component can be within a preset temperature range. The preset temperature range may be a preset temperature range set based on the target temperature of the aerosol generating component. That is, the intermediate value of the preset temperature range may include the target temperature of the aerosol generating component.

[0077] Combined with Figure 2 the example shown, exemplarily, taking the temperature Tb as the target temperature, the preset temperature range includes the target temperature Tb. Correspondingly, by adjusting the duty cycle of the first drive signal, the heating temperature of the aerosol generating device to the aerosol generating component is within a preset temperature range. Specifically, it may be by adjusting the duty cycle of the first drive signal, so that the heating temperature of the aerosol generating device to the aerosol generating component is between the temperature Tm and the target temperature Tb.

[0078] For example, if the heating temperature of the aerosol generating device to the aerosol generating component is Tx, then Tx satisfies Tb≥Tx>Tm.

[0079] For another example, if the heating temperature of the aerosol generating device for the aerosol generating component is Ty, then Ty satisfies Tb + ΔT ≥ Ty, and Ty > Tm, where Tb = Tm + ΔT.

[0080] Step 132: By adjusting the duty cycle of the first driving signal, make the difference between the real-time current value and the target working current value of the aerosol generating device not greater than a preset current difference.

[0081] In step 132, by adjusting the duty cycle of the first driving signal, the working current of the aerosol generating device can be adjusted, so that the difference between the real-time current value and the target working current value of the aerosol generating device is not greater than the preset current difference. In this way, the real-time current value of the aerosol generating device can be stabilized within a certain range, and thus the heating temperature of the aerosol generating device for the aerosol generating component can also be guaranteed to be within a certain range.

[0082] Combined with Figure 2 the example shown, at temperature Tm, the real-time current value I DC is equal to the minimum working current value I min . Correspondingly, taking the temperature Tb as the target temperature as an example, the target working current value can be the current value corresponding to the target temperature Tb, such as I b . Based on this, by adjusting the duty cycle of the first driving signal, make the difference (I DC -I b ) between the real-time current value I DC of the aerosol generating device and the target working current value I b not greater than the preset current difference ΔI, that is, (I DC -I b ) ≤ ΔI.

[0083] Here, the preset current difference ΔI can correspond to the temperature difference ΔT, and this temperature difference ΔT can be the difference between the target temperature Tb and the temperature Tm at the relative permeability inversion point M. Correspondingly, the preset current difference ΔI can be the difference between the target working current value I b and the minimum working current value I min . In this way, the heating temperature of the aerosol generating device for the aerosol generating component can be made between the temperature Tm and the target temperature Tb.

[0084] It is easy to understand that in this embodiment, whether step 131 or step 132 is executed, the heating temperature of the aerosol generating device for the aerosol generating component can be guaranteed to be within a certain range, which can not only ensure the stability of the heating of the aerosol generating device for the aerosol generating component, but also enrich the implementation methods for fine-tuning or micro-controlling the aerosol generating device.

[0085] Figure 5The figure shows a flowchart for implementing a control method of an aerosol generating device provided by another embodiment of the present application. Different from Figure 4 the embodiment, Figure 5 in the shown embodiment, steps 210 to 230 are further included. Specifically:

[0086] 210: Obtain a first real-time current value corresponding to a first driving signal.

[0087] 220: If the first real-time current value drops to a second real-time current value, generate a second driving signal based on the difference between the first real-time current value and the second real-time current value.

[0088] 230: Operate according to the second driving signal to heat the aerosol generating component.

[0089] In this embodiment, the first real-time current value generally refers to the real-time current when the aerosol generating device operates according to the first driving signal to heat the aerosol generating component. Here, the second real-time current value is less than the first real-time current value. When the first real-time current value drops to the second real-time current value, it means that before this, the temperature of the aerosol generating component has dropped from the target temperature Tb.

[0090] It should be noted that when the temperature of the aerosol generating component drops from the target temperature Tb, it means that the user has used the aerosol generating device and the aerosol generating component, that is, the user has performed a sucking action or a sucking motion on the aerosol generating device, and the temperature of the aerosol generating component has dropped from the target temperature Tb to the current temperature under the drive of the airflow. Taking Figure 2 the shown target temperature Tb as an example, when the temperature drops to between the temperature Tm and the target temperature Tb, the impedance in the RLC load resonance circuit formed by the aerosol generating device and the aerosol generating component changes, resulting in a change in the real-time current value of the aerosol generating device. Specifically, it can be from the target working current value I b to the minimum working current value I min drop. Based on this, when the first real-time current value drops to the second real-time current value, it can be determined whether the user has performed a sucking action or a sucking motion on the aerosol generating device based on the difference between the first real-time current value and the second real-time current value. Based on this, in order to enable the temperature of the aerosol generating device to be maintained at the target temperature Tb for normal use, at this time, a second driving signal is generated based on the difference between the first real-time current value and the second real-time current value, and then operate according to the second driving signal to heat the aerosol generating component, which can enable the aerosol generating device to quickly heat up to the target temperature Tb.

[0091] In specific implementation, the first real-time current value and the second real-time current value can be sampled by reusing the current sampling circuit provided in the aerosol generating device. It can be understood that the sampling time of the second real-time current value is later than that of the first real-time current value.

[0092] It is easy to understand that in some embodiments, when heating the aerosol generating component according to the second driving signal, if the temperature of the aerosol generating device can be raised to the target temperature Tb, then it is only necessary to heat the aerosol generating component again according to the first driving signal.

[0093] As an embodiment, step 220 includes:

[0094] If the difference between the first real-time current value and the second real-time current value is less than the preset current difference, then use the first driving signal as the second driving signal.

[0095] If the difference between the first real-time current value and the second real-time current value is greater than the preset current difference, then increase the duty cycle of the first driving signal to obtain the second driving signal.

[0096] In this embodiment, that the difference between the first real-time current value and the second real-time current value is less than the preset current difference indicates that at this time, the user has performed a sucking action or a relatively small sucking action on the aerosol generating device, and under the drive of the air flow, the temperature of the aerosol generating component is lowered from the target temperature Tb, and the lowered temperature difference is relatively small. At this time, it is only necessary to continue heating the aerosol generating component according to the first driving signal. That the difference between the first real-time current value and the second real-time current value is greater than the preset current difference indicates that at this time, the user has performed a moderate or relatively large sucking action or sucking action on the aerosol generating device, and under the drive of the air flow, the temperature of the aerosol generating component is lowered from the target temperature Tb, and the lowered temperature difference is relatively large. At this time, the duty cycle of the first driving signal can be increased to obtain a second driving signal with a larger duty cycle, and then the aerosol generating component can be heated according to this second driving signal, and the temperature of the aerosol generating device can be quickly raised to the target temperature Tb.

[0097] Please refer to Figure 6 , Figure 6 which shows a schematic diagram of the change of the real-time current value of the aerosol generating device. As Figure 6 shown, the preset current difference is ΔI. In the change example of the first variable current ΔI1, the difference between the first real-time current value I1 and the second real-time current value I2 is the first variable current ΔI1, and the first variable current ΔI1 is greater than ΔI. At this time, the second driving signal can be obtained by increasing the duty cycle of the first driving signal.

[0098] In specific implementation, whether the first driving signal is used as the second driving signal or the second driving signal is obtained by increasing the duty cycle on the basis of the first driving signal, when heating the aerosol generating component according to the second driving signal, in order to prevent the user's two successive sucking or sipping actions from being too close, the aerosol generating device can be made such that when heating the aerosol generating component according to the second driving signal, the time required for its temperature to rise to the target temperature Tb satisfies a preset interval duration. That is, based on this preset interval duration, the amplitude of increasing the duty cycle of the first driving signal can be selected or formulated so that the obtained second driving signal can be adapted to this preset interval duration.

[0099] As an embodiment, after step 230, steps 1 to 3 are further included. Specifically:

[0100] Step 1: Obtain the real-time current change trend under the action of the second driving signal.

[0101] Step 2: If the real-time current change trend is continuously decreasing, increase the duty cycle of the second driving signal to obtain a third driving signal.

[0102] Step 3: Work according to the third driving signal to heat the aerosol generating component.

[0103] In this embodiment, the real-time current change trend under the action of the second driving signal refers to whether the working current value of the aerosol generating device increases or decreases when working according to the second driving signal. That is, the real-time current change trend can be understood as the difference between two adjacent (front and back) real-time current values. If this difference is positive, it means the current change trend is decreasing; if this difference is negative, it means the current change trend is increasing. Here, if the real-time current change trend is continuously decreasing, it means the real-time current value is continuously decreasing. At this time, the temperature drop of the carried aerosol generating component is relatively large, and more electric energy is still required to heat it.

[0104] As Figure 6 shown, the preset current difference is ΔI. In the change example of the second changing current ΔI2, when the first real-time current value I1 drops to the second real-time current value I2, the real-time current change trend under the action of the second driving signal is continuously decreasing, that is, the change trend of the second changing current ΔI2 in Figure 6 appears. At this time, in order to be able to pull back the temperature of the aerosol generating device to the target temperature Tb, a third driving signal is obtained by increasing the duty cycle of the second driving signal. Then, it is possible to work according to the third driving signal with a larger duty cycle, so that the working current of the aerosol generating device can be further increased, and thus the heating temperature of the aerosol generating device can be pulled back to the target temperature Tb to heat the aerosol generating component.

[0105] As an embodiment, after step 3, it further includes:

[0106] Obtain the third real-time current value corresponding to the third driving signal. If the third real-time current value is not less than the target working current value, work according to the first driving signal again to heat the aerosol generating component.

[0107] In this embodiment, the third real-time current value refers to the current value obtained by current sampling when the aerosol generating device works according to the third driving signal.

[0108] As Figure 6 shown in the example, when the third real-time current value I3 is not less than the target working current value, that is, not less than I1, in order to keep the temperature of the aerosol generating device at the target temperature Tb, it can work according to the first driving signal again to heat the aerosol generating component.

[0109] In the above solution, by obtaining the third real-time current value corresponding to the third driving signal, when the third real-time current value is not less than the target working current value, working according to the first driving signal again to heat the aerosol generating component can keep the temperature of the aerosol generating device at the target temperature, thereby avoiding adverse reactions such as overheating of the aerosol generating component caused by too high a temperature of the aerosol generating device, and thus improving the intelligence level of the aerosol generating device.

[0110] Please refer to Figure 7 , Figure 7 which shows a schematic structural diagram of a control device for an aerosol generating device provided by an embodiment of the present application. In this embodiment, each unit included in the control device of the aerosol generating device is used to execute Figures 4 to 5 the respective steps in the corresponding embodiment. Specifically, please refer to Figures 4 to 5 the relevant descriptions in the corresponding embodiment. For the convenience of description, only the parts related to this embodiment are shown. Refer to Figure 7 , the control device of the aerosol generating device includes: a first driving unit 701, a detection unit 702, and a second driving unit 703. Specifically:

[0111] The first driving unit 701 is configured to respond to a preset instruction for heating the aerosol generating component and work according to a preheating driving signal to preheat the aerosol generating component.

[0112] The detection unit 702 is configured to detect the real-time current value of the aerosol generating device during the preheating of the aerosol generating component.

[0113] The second driving unit 703 is configured to heat the aerosol generating component according to the first driving signal when it is determined that the real-time current value appears twice the target working current value; wherein, the duty cycle of the first driving signal is different from that of the preheating driving signal.

[0114] As an embodiment, the control device of the aerosol generating device further includes:

[0115] The first obtaining unit is configured to obtain a first real-time current value corresponding to the first driving signal.

[0116] The first generating unit is configured to generate a second driving signal based on the difference between the first real-time current value and the second real-time current value if the first real-time current value drops to the second real-time current value.

[0117] The third driving unit is configured to heat the aerosol generating component according to the second driving signal.

[0118] As an embodiment, the control device of the aerosol generating device further includes:

[0119] The second obtaining unit is configured to obtain the real-time current change trend under the action of the second driving signal.

[0120] The second generating unit is configured to increase the duty cycle of the second driving signal to obtain a third driving signal if the real-time current change trend is continuously decreasing.

[0121] The fourth driving unit is configured to heat the aerosol generating component according to the third driving signal.

[0122] As an embodiment, the control device of the aerosol generating device further includes:

[0123] The third obtaining unit is configured to obtain a third real-time current value corresponding to the third driving signal.

[0124] The fifth driving unit, if the third real-time current value is not less than the target working current value, re-heats the aerosol generating component according to the first driving signal.

[0125] It can be understood that the improvement points and specific implementation manners related to the present application have been Figures 1 to 6 described in detail in the corresponding embodiments. When specifically implementing, it can be based on the Figures 1 to 6 corresponding embodiment to make Figure 7 the units in the control device of the aerosol generating device provided in the embodiment execute the steps in the above method embodiments, so details are not described herein again.

[0126] Figure 8 is a structural block diagram of an aerosol generating device provided by an embodiment of the present application. As Figure 8As shown, the aerosol generating device 8 of this embodiment includes: a processor 80, a memory 81, and a computer program 82 stored in the memory 81 and executable on the processor 80, such as a program for the control method of the aerosol generating device. When the processor 80 executes the computer program 82, the steps in each of the above-described embodiments of the control method of the aerosol generating device are implemented, such as Figures 4 to 5 the steps shown. Alternatively, when the processor 80 executes the computer program 82, the functions of each unit in the above Figure 6 corresponding embodiment are implemented. For specific details, please refer to Figure 7 the relevant description in the corresponding embodiment, which will not be elaborated here.

[0127] The embodiment of the present application further provides an aerosol generation system, which includes an aerosol generation component and also includes an aerosol generating device provided in the above embodiment.

[0128] It can be understood that the improvement points and specific implementation manners related to the present application have been Figures 1 to 6 detailedly described in the corresponding embodiment. When specifically implemented, the aerosol generation system can be implemented on the basis of the Figures 1 to 6 corresponding embodiment, so it will not be elaborated here.

[0129] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of the present application, and should all be included in the protection scope of the present application.

Claims

1. A control method for an aerosol generating device, characterized in that, The aerosol generating device is used to carry an aerosol generating component, and the control method includes: In response to a preset instruction to heat the aerosol generating component, operate according to a preheating drive signal to preheat the aerosol generating component; During the preheating of the aerosol generating component, detect the real-time current value of the aerosol generating device; When it is determined that the real-time current value appears twice at the target working current value, operate according to a first drive signal to heat the aerosol generating component; wherein, the duty cycle of the first drive signal is different from the duty cycle of the preheating drive signal.

2. The control method according to claim 1, characterized in that The preheating drive signal includes a preset pulse width; the detecting the real-time current value of the aerosol generating device includes: Within a preset detection duration, detect the real-time current value of the aerosol generating device according to the preset pulse width of the preheating drive signal.

3. The control method according to claim 1, wherein The step of, when it is determined that the real-time current value appears twice at the target working current value, operating according to a first drive signal to heat the aerosol generating component, includes: Determine the minimum current value from the real-time current values; If the acquisition time of the minimum current value is between the acquisition times of the two target working current values, operate according to a first drive signal to heat the aerosol generating component.

4. The control method according to claim 3, characterized in that, The target working current value is calculated based on a preset minimum current value and a preset current increment value; The step of operating according to a first drive signal to heat the aerosol generating component includes: Generate the first drive signal according to the target working current value and operate according to the first drive signal to heat the aerosol generating component.

5. The control method according to claim 1, wherein After the step of operating according to a first drive signal to heat the aerosol generating component, it further includes: By adjusting the duty cycle of the first drive signal, make the heating temperature of the aerosol generating device for the aerosol generating component within a preset temperature range; and / or By adjusting the duty cycle of the first drive signal, make the difference between the real-time current value of the aerosol generating device and the target working current value not greater than a preset current difference.

6. The control method according to claim 1, wherein It further includes: Obtain a first real-time current value corresponding to the first drive signal; If the first real-time current value drops to a second real-time current value, generate a second drive signal based on the difference between the first real-time current value and the second real-time current value; Operate according to the second drive signal to heat the aerosol generating component.

7. The control method according to claim 6, wherein The generating a second drive signal based on the difference between the first real-time current value and the second real-time current value includes: If the difference between the first real-time current value and the second real-time current value is less than a preset current difference, use the first drive signal as the second drive signal; If the difference between the first real-time current value and the second real-time current value is greater than a preset current difference, increase the duty cycle of the first drive signal to obtain the second drive signal.

8. The control method according to claim 6 or 7, characterized in that After the step of operating according to the second drive signal to heat the aerosol generating component, it further includes: Obtain the real-time current change trend under the action of the second driving signal; If the real-time current change trend is continuously decreasing, increase the duty cycle of the second driving signal to obtain a third driving signal; Work according to the third driving signal to heat the aerosol generating component.

9. The control method according to claim 8, wherein After the step of working according to the third driving signal to heat the aerosol generating component, it further includes: Obtain the third real-time current value corresponding to the third driving signal; If the third real-time current value is not less than the target working current value, work according to the first driving signal again to heat the aerosol generating component.

10. An aerosol generating device, characterized in that, It includes: A memory, a processor, and a computer program stored in the memory and executable on the aerosol generating device, and when the processor executes the computer program, it implements the steps of the control method of the aerosol generating device according to any one of claims 1 to 9.

11. An aerosol generating system, characterized in that, It includes an aerosol generating component, and also includes the aerosol generating device according to claim 10.

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