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, in the process of outputting a preheating control signal to a heating assembly, the change trend of working current can be obtained, and then whether a currently-carried aerosol generation assembly is a target aerosol generation assembly or not is judged according to the change trend of the working current; in other words, whether the currently carried aerosol generation assembly is matched with the aerosol generation assembly or not is judged. When it is determined that the currently carried aerosol generation assembly is matched with the aerosol generation assembly, a target control signal is output for the heating assembly based on a preset driving strategy, so that the heating assembly conducts heating operation on the target aerosol generation assembly according to the target control signal. And the intelligent degree of the aerosol generating equipment is improved.

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 generating component, heating the aerosol generating component, and then atomizing the substance in the aerosol generating component.

[0003] However, due to the differences in the heating methods of different aerosol generating devices for aerosol generating components, 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 substance in the aerosol generating component. Another example is that the aerosol generating device cannot heat some aerosol generating components to the optimal operating temperature, affecting the user experience. 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 solve the problem of low intelligence level 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 generating component, and the aerosol generating device includes a heating component. The control method includes:

[0006] In response to a preset instruction to heat the currently carried aerosol generating component, output a preheating control signal to the heating component according to a preset heating strategy, so that the heating component performs a preheating operation on the target aerosol generating component according to the preheating control signal;

[0007] During the process of outputting the preheating control signal to the heating component, obtain the change trend of the working current;

[0008] When it is determined that the currently carried aerosol generating component is the target aerosol generating component according to the change trend of the working current, output a target control signal to the heating component based on a preset driving strategy, so that the heating component performs a heating operation on the currently carried aerosol generating component according to the target control 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 generating component, and the aerosol generating device includes a heating component. The control device includes:

[0010] A first driving unit, configured to respond to a preset instruction for heating the currently loaded aerosol generating component, and output a preheating control signal to a heating component according to a preset heating strategy, so that the heating component preheats the currently loaded aerosol generating component according to the preheating control signal;

[0011] An acquisition unit, configured to acquire a working current change trend during the process of outputting the preheating control signal to the heating component;

[0012] A second driving unit, configured to, when determining that the currently loaded aerosol generating component is a target aerosol generating component according to the working current change trend, output a target control signal to the heating component based on a preset driving strategy, so that the heating component heats the target aerosol generating component according to the target control 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. The aerosol generating device is used to carry an aerosol generating component, and the aerosol generating device includes a heating component. The aerosol generating device outputs a preheating control signal to the heating component according to a preset heating strategy in response to a preset instruction to heat the currently carried aerosol generating component, so that the heating component preheats the currently carried aerosol generating component according to the preheating control signal. Since when the aerosol generating device heats the aerosol generating component, the working current 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 process of outputting the preheating control signal to the heating component, the change trend of the working current can be obtained, and then it can be determined whether the currently carried aerosol generating component is the target aerosol generating component according to the change trend of the working current, that is, it can be determined whether the currently carried aerosol generating component is compatible with the aerosol generating component. In this way, when it is determined that the currently carried aerosol generating component is the target aerosol generating component according to the change trend of the working current, it can be determined that the currently carried aerosol generating component is compatible with the aerosol generating component, and then a target control signal is output to the heating component based on a preset driving strategy, so that the heating component heats the target aerosol generating component according to the target control signal. The automatic recognition of the matching degree of the aerosol generating device to the aerosol generating component is realized, and the intelligent degree of the aerosol generating device is improved. 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 the 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 by the embodiment of the present application;

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

[0023] Figure 6 Schematic diagram of the structure of a control device for an aerosol generating device provided by the embodiment of the present application;

[0024] Figure 7 A schematic structural diagram of an aerosol generating device provided by an embodiment of the present application. Detailed implementation manners

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, 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.

[0026] 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, 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.

[0027] Exemplarily, the aerosol generating device can be used in conjunction 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.

[0028] 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.

[0029] 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 carries an aerosol generating component, the magnetic eddy current heating component is made to act on a receptor in the aerosol generating component by outputting a control signal to realize heating of the aerosol generating component.

[0030] However, due to the differences in the heating methods of different aerosol generating devices for the aerosol generating component, the heating effect on some incompatible 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 use temperature, affecting the user experience.

[0031] To solve the above technical problems, this embodiment provides a control method for an aerosol generating device, which is applied to an aerosol generating device. The aerosol generating device is used to carry an aerosol generating component, and the aerosol generating device includes a heating component. The aerosol generating device responds to a preset instruction to heat the currently carried aerosol generating component, and outputs a preheating control signal to the heating component according to a preset heating strategy, so that the heating component preheats the currently carried aerosol generating component according to the preheating control signal. Since when the aerosol generating device heats the aerosol generating component, the working current 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 process of outputting the preheating control signal to the heating component, the change trend of the working current can be obtained, and then it can be determined whether the currently carried aerosol generating component is the target aerosol generating component according to the change trend of the working current, that is, it can be determined whether the currently carried aerosol generating component matches the aerosol generating component. In this way, when it is determined that the currently carried aerosol generating component is the target aerosol generating component according to the change trend of the working current, it can be determined that the currently carried aerosol generating component matches the aerosol generating component, and then a target control signal is output to the heating component based on a preset driving strategy, so that the heating component heats the target aerosol generating component according to the target control signal. The automatic recognition of the matching degree of the aerosol generating device to the aerosol generating component is realized, and the intelligent degree of the aerosol generating device is improved.

[0032] A control method for an aerosol generating device provided in this embodiment has an execution subject of the aerosol generating device. Specifically, it can be a control unit MCU or a 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 recognition of whether the aerosol generating component matches the aerosol generating device by executing the control method for the aerosol generating device provided in this embodiment.

[0033] 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, which is not limited herein.

[0034] Figure 1 The usage schematic diagram of the aerosol generating device and the aerosol generating component in the embodiment of the present application is shown. 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.

[0035] 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 radio frequency 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 strength of the coil 11 to make the receptor 21 in the aerosol generating component 20 continuously generate heat as a load, so as to reach a temperature that can cause the aerosol generating matrix 22 to carbonize and the aerosolizing agent to volatilize.

[0036] 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 a 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.

[0037] Referring to Figure 3 , Figure 3 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.

[0038] 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 with each other by using the change process of the working current value. That is, when the aerosol generating device 10 is equipped with the aerosol generating assembly 20, by detecting the change trend of the working current of the aerosol generating device 10, it can be used to identify whether the aerosol generating assembly 20 has the relative magnetic permeability peak value characteristic or relative magnetic permeability change characteristic that is compatible with the aerosol generating device 10, and further determine whether the aerosol generating assembly 20 is the target aerosol generating assembly that is compatible with the aerosol generating device 10.

[0039] The following only takes the control unit MCU in the aerosol generating device as an example of the execution subject, and describes in detail a control method of an aerosol generating device provided in this embodiment through a specific implementation method.

[0040] See also Figure 4 , Figure 4 FIG. 1 shows a flow chart of a control method for an aerosol generating device provided in an embodiment of the present application. Figure 4 As shown, a control method for an aerosol generating device provided in an embodiment of the present application includes:

[0041] 110: In response to a preset instruction to heat the currently carried aerosol generating component, a preheating control signal is output to the heating component according to a preset heating strategy, so that the heating component preheats the currently carried aerosol generating component according to the preheating control signal.

[0042] In 110, the preset instruction for heating the currently mounted aerosol generating component generally refers to the operation instruction for controlling the aerosol generating device to heat the currently mounted aerosol generating component.

[0043] In specific implementation, the preset instruction can be automatically triggered when the aerosol generating component is mounted in the aerosol generating device, or can be manually triggered by the user after the aerosol generating component is mounted in the aerosol generating device, and there is no limitation here.

[0044] Exemplarily, on the aerosol generating device, there can be a receiving position or area for mounting the aerosol generating component, such as a receiving cavity or bin that can accommodate and fix the aerosol generating component. In the receiving cavity or bin, there is a sensor for detecting whether the aerosol generating component is in place. When the sensor detects that the aerosol generating component is in place, the preset instruction for heating 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 for heating the currently mounted aerosol generating component through the control button on the aerosol generating device.

[0045] In this embodiment, the preset heating strategy refers to the specific control parameters for preheating the currently mounted aerosol generating component. In specific implementation, the heating component in the aerosol generating device can be a resistive heating component and / or an electromagnetic heating component, and there is no limitation here.

[0046] 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, outputting a preheating control signal to the heating component according to the preset heating strategy can include a driving 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, in combination Figures 1 to 3 with the description, in the process of outputting a preheating control signal to the heating component according to the preset heating strategy so that the heating component preheats the currently mounted aerosol generating component according to the preheating control signal, the coil in the electromagnetic heating component and the receptor in the aerosol generating component form a magnetic excitation system. Furthermore, the trend of the working current change of the electromagnetic heating component can be detected as the basis for judging whether the aerosol generating component is the target aerosol generating component.

[0047] As another example, when the heating component in the aerosol generating device is a resistive heating component, a preheating control signal is output to the heating component according to a preset heating strategy, which can be used to indicate the working current and / or working voltage of 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 set in the aerosol generating device, and it can also form a magnetic excitation system with the receptor in the aerosol generating component, and then use the detected working current as the basis for judging whether the aerosol generating component is the target aerosol generating component.

[0048] As an embodiment, the preset heating strategy at least includes a first duty cycle corresponding to the preheating control signal. The above step 110 may include: outputting a preheating control signal to the heating component according to the first duty cycle.

[0049] In this embodiment, regardless of whether the specific implementation manner of the heating component is the heating circuit corresponding to the resistive heating method and / or the heating circuit corresponding to the electromagnetic heating method, when outputting the preheating control signal to the heating component according to the first duty cycle, it may be to generate a corresponding working current and / or working voltage according to the first duty cycle to control the heating circuit corresponding to the resistive heating method for preheating operation, and / or generate a corresponding PWM signal according to the first duty cycle to control the heating circuit corresponding to the electromagnetic heating method.

[0050] Based on this, in all embodiments of the present application, a corresponding control signal is generated according to the duty cycle, and the specific presentation form of the control signal can be selected according to the specific circuit of the heating component actually used, so it will not be elaborated in the subsequent examples related to the duty cycle.

[0051] It should be pointed out that a preheating control signal is output to the heating component according to a preset heating strategy, so that the heating component performs a preheating operation on the currently mounted aerosol generating component according to the preheating control signal. Here, the preheating operation can be understood as creating a detection environment for detecting whether the currently mounted aerosol generating component is the target aerosol generating component adapted to the aerosol generating device.

[0052] Exemplarily, in specific implementation, when the aerosol generating device outputs a preheating control signal to the heating component according to a preset heating strategy, it can indicate that a detection environment has been created, that is, the trend of the change in the working current can be obtained by executing step 120.

[0053] 120: During the process of outputting a preheating control signal to the heating component, obtain the trend of the working current change. In 120, the trend of the working current change is used to characterize the change trend of the relative magnetic permeability of the magnetic excitation system composed of the aerosol generating device and the currently mounted aerosol generating component during the preheating operation. Here, the magnetic excitation system composed of the aerosol generating device and the currently mounted aerosol generating component can be the magnetic excitation system composed of 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 composed of 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 trend of the working current change refers to the process of the magnitude change between multiple groups of working currents detected during the preheating operation.

[0055] As an embodiment, the above step 120 may include:

[0056] During the process of outputting a preheating control signal to the heating component, detect multiple working current detection values of the aerosol generating device according to a preset detection strategy; wherein, the preset detection strategy at least includes a detection timing, and the detection timing corresponds to the preheating pulse width of the preheating control signal. Take the magnitude change trend of the multiple current detection values as the trend of the working current change.

[0057] In this embodiment, since the preset detection strategy at least includes a detection timing, and the detection timing corresponds to the preheating pulse width of the preheating control signal, during the process of outputting a preheating control signal to the heating component, multiple working current detection values of the aerosol generating device can be detected according to the corresponding relationship between the detection timing and the preheating pulse width of the preheating control signal.

[0058] Exemplarily, in specific implementation, a corresponding current sampling circuit can be set in the aerosol generating device, and during the duration of this preheating operation, the working current of the heating circuit or the detection circuit where the coil is located is detected through this current sampling circuit, so as to obtain multiple groups of working currents. The trend of the working current change can be obtained by comparing the magnitudes of adjacent two groups of working currents.

[0059] Combined with the above example, when using the current sampling circuit to sample the working current, 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 sample the working current, and then multiple working current detection values are obtained.

[0060] 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 working current detection value of the aerosol generating device is detected, and multiple working current detection values are obtained.

[0061] 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. The MCU receives multiple working current detection values, and the working current change trend can be obtained by comparing the magnitudes of two adjacent working current detection values.

[0062] Combined with the above embodiment where the preset heating strategy at least includes the first duty cycle corresponding to the preheating control signal, as a possible implementation, the preset heating strategy can also include the preheating duration, which is used to indicate the duration of the preheating operation.

[0063] Correspondingly, the preheating control signal is output to the heating component according to the preset heating strategy. Specifically, within the preheating duration, the preheating control signal is output to the heating component according to the first duty cycle, so that the heating component can perform a preheating operation on the currently mounted aerosol generating component within the preheating duration.

[0064] Based on this, during the process of outputting the preheating control signal to the heating component, when detecting multiple working current detection values of the aerosol generating device according to the preset detection strategy, the detection duration is equivalent to the preheating duration. Thus, the number and / or the detection duration of the multiple working current detection values can be restricted, and then the working current change trend can be determined according to the magnitude change trend of a limited number of current detection values.

[0065] Exemplarily, taking the preheating duration as 15 seconds as an example, assume that within 15 seconds, the preheating control signal is output to the heating component according to the first duty cycle. The preheating control signal is a PWM signal, and within these 15 seconds, the pulse width is triggered 60 times. Correspondingly, 60 working current detection values are detected. By comparing the magnitude change trend of each adjacent pair of the 60 working current detection values, the working current change trend can be determined.

[0066] It is easy to understand that in specific implementation, the material of the sensor in the aerosol generating component or the relative magnetic permeability characteristics in different environments can be configured and mapped as the reference trend of the working current change. When the working current change trend is determined, the working current change trend is compared with the reference trend of the working current change, and then it is determined whether the currently mounted aerosol generating component is the target aerosol generating component.

[0067] Taking Figure 3 the shown working current change trend as the reference trend of working current change as an example, combined with the above-mentioned example where the preheating duration is 15 seconds and 60 working current detection values are detected within these 15 seconds.

[0068] As an example, if among the 60 working current detection values, the magnitude change trend of every two adjacent working current detection values remains constant continuously, that is, it does not match the reference trend of working current change, then it can be determined that the currently installed aerosol generating component is not the target aerosol generating component.

[0069] As an example, if among the 60 working current detection values, the magnitude change trend of every two adjacent working current detection values continuously increases, that is, the minimum working current value I min has never appeared, that is, it does not match the reference trend of working current change, then it can be determined that the currently installed aerosol generating component is not the target aerosol generating component.

[0070] As an example, if among the 60 working current detection values, the difference between any two adjacent working current detection values is large, that is, the rising rate of the working current is abnormal and does not match the reference trend of working current change, then it can be determined that the currently installed aerosol generating component is not the target aerosol generating component.

[0071] As an example, if among the 60 working current detection values, the magnitude change trend of every two adjacent working current detection values continuously decreases, and the minimum working current value I min appears, and then the current rises again, that is, it matches the reference trend of working current change, then it can be determined that the currently installed aerosol generating component is the target aerosol generating component.

[0072] As an embodiment, the change trend around the lowest current detection value can be used as the reference trend of working current change.

[0073] Correspondingly, in an embodiment, after the above step: taking the magnitude change trend of multiple current detection values as the working current change trend, it may further include:

[0074] Step A: If a first inflection point current value is determined according to multiple current detection values, then it is determined that the currently installed aerosol generating component is the target aerosol generating component.

[0075] In step A, the first inflection point current value may be the minimum working current value.

[0076] Taking Figure 3Taking the minimum operating current value shown as the first inflection point current value as an example of the reference trend of the operating current change, combined with the above example where the preheating duration is 15 seconds and 60 operating current detection values are detected within these 15 seconds, if among the 60 operating current detection values, the minimum operating current value I min , that is, it matches the reference trend of the operating current change, then it can be determined that the currently installed aerosol generating component is the target aerosol generating component.

[0077] Correspondingly, in another embodiment, after the above step: taking the magnitude change trend of multiple current detection values as the operating current change trend, it may further include:

[0078] Step B: If a first inflection point current value and a second inflection point current value are determined based on multiple current detection values, and the detection time of the second inflection point current value is later than that of the first inflection point current value, then it is determined that the currently installed aerosol generating component is the target aerosol generating component.

[0079] In step B, the first inflection point current value and the second inflection point current value may be equal, that is, both the first inflection point current value and the second inflection point current value are the minimum operating current value I min . Here, the "first" and "second" in the first inflection point current value and the second inflection point current value are used to distinguish the detection times of the two minimum operating current values I min , that is, the detection time of the second inflection point current value is later than that of the first inflection point current value.

[0080] It is easy to understand that step A and step B in the above embodiments are parallel steps, and the execution order is not sequential. After step A is executed, step B is no longer executed, and after step B is executed, step A is no longer executed until the magnitude change trend of multiple current detection values is taken as the operating current change trend again.

[0081] As an example, in combination with Figure 2 and Figure 3 the examples shown, when a first inflection point current value and a second inflection point current value are determined from multiple current detection values, it can be understood that in the curve in Figure 2 , the peak corresponding to point M appears twice, and in Figure 3 the minimum operating current value I min appears twice.

[0082] For example, when the first relative permeability inversion point M1 appears in Figure 2 , it corresponds to the first minimum operating current value I Figure 3 appearing in min1 , and when the second relative permeability inversion point M2 appears in Figure 2 , it corresponds to the second minimum operating current value I Figure 3 appearing in min2Here, the first magnetic permeability corresponding to the first relative magnetic permeability inversion point M1 and the second magnetic permeability corresponding to the first relative magnetic permeability inversion point M2 may be the same or different. It can be understood that when the first magnetic permeability corresponding to the first relative magnetic permeability inversion point M1 is equal to the second magnetic permeability corresponding to the first relative magnetic permeability inversion point M2, the first minimum working current value I min1 is also equal to the second minimum working current value I min2 . When the first magnetic permeability corresponding to the first relative magnetic permeability inversion point M1 is not equal to the second magnetic permeability corresponding to the first relative magnetic permeability inversion point M2, the first minimum working current value I min1 is also not equal to the second minimum working current value I min2 .

[0083] In another embodiment, after step 120, it may further include:

[0084] Step C: Execute the step of obtaining the change trend of the working current N times to obtain N sets of multiple current detection values, and when the first inflection point current values determined in each set of multiple current detection values are all equal, determine that the currently installed aerosol generating component is the target aerosol generating component; where N is a positive integer greater than 1.

[0085] Here, step C can be understood as executing step 120 N times. If step 120 is executed N times, and equal first inflection point current values can be determined in the N sets of multiple current detection values obtained, that is, the N minimum working current values I min are all equal, then it can be determined that the currently installed aerosol generating component is the target aerosol generating component.

[0086] In specific implementation, step C can be executed after step 120, and then determine whether the currently installed aerosol generating component is the target aerosol generating component according to the change trend of the working current.

[0087] It is easy to understand that step C can also be regarded as a step parallel to step A and / or step B in the above embodiment, that is, step C is not executed when step A or step B is executed, and step A or step B is not executed when step C is executed.

[0088] 130: When determining that the currently installed aerosol generating component is the target aerosol generating component according to the change trend of the working current, output a target control signal to the heating component based on a preset driving strategy, so that the heating component performs a heating operation on the target aerosol generating component according to the target control signal.

[0089] In 130, the preset driving strategy generally refers to the control strategy when the aerosol generating device is equipped with the target aerosol generating component.

[0090] In this embodiment, the target control signal is used to control the heating component to perform a heating operation on the currently loaded aerosol generating component. Here, the target control signal is different from the preheating control signal. The preheating control signal can be understood as a control signal for controlling the heating component to continuously heat the currently loaded aerosol generating component. The target control signal can be understood as a control signal for controlling the heating component to heat the currently loaded aerosol generating component to the optimal temperature and maintain it within the optimal temperature range.

[0091] In a specific implementation, the preset driving strategy can be a dynamic control scheme for controlling the operation of the heating component based on the optimal temperature of the target aerosol generating component and the working current of the aerosol generating device.

[0092] Combined with Figure 2 As shown, as an example, let the temperature corresponding to the relative permeability inversion point M be Tm, and the optimal temperature of the target aerosol generating component can be Tb. Here, for the target aerosol generating component, since its corresponding sensor has a relative permeability peak characteristic or a relative permeability change characteristic adapted to the aerosol generating device, the temperature Tm corresponding to the permeability inversion point M is a known temperature. Also, because when setting Tb, Tb is set as close to Tm as possible, so that the temperature measurement can be more accurate and the consistency of different loads is better. Here, considering the stability requirements of the preset driving strategy, usually a small temperature difference ΔT is added to the temperature Tm corresponding to the relative permeability inversion point M. This temperature difference ΔT can be positive or negative. That is, Tb = Tm + ΔT or Tb = Tm - ΔT. Based on this, Tb can also be regarded as a known temperature.

[0093] It is easy to understand that in a specific implementation, the optimal temperature Tb can be 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 use of electrical energy. As a possible implementation method, the difference between the set optimal temperature Tb and the Curie temperature Tc can be 100°C to 150°C.

[0094] 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. Another example is that ΔT satisfies 6°C ≤ ΔT ≤ 15°C.

[0095] As a possible implementation method, the temperature difference ΔT can be a dynamic value based on a certain proportional 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]. Another example is that α ∈ [0.02, 0.05].

[0096] It is easily understandable that step 110 can be regarded as the heating stage of the aerosol generating component, and step 130 can be regarded as the cooling stage of the aerosol generating component. That is to say, when a preheating control signal is output to the heating component according to a preset heating strategy, so that the heating component preheats the currently carried aerosol generating component according to the preheating control signal, the temperature provided by the aerosol generating device for the aerosol generating component rises relatively fast. When it is determined that the currently carried aerosol generating component is the target aerosol generating component, step 130 is executed, that is, the cooling stage is entered. At this time, it is only necessary to maintain the temperature provided by the aerosol generating device for the aerosol generating component within a certain range.

[0097] As an embodiment, the preset driving strategy at least includes a second duty ratio corresponding to the target control signal, and the second duty ratio is less than the first duty ratio. The above step 130 may specifically include:

[0098] Output a target control signal to the heating component according to the second duty ratio, so that the heating component heats the target aerosol generating component according to the target control signal.

[0099] In this embodiment, the preset driving strategy may include the specific value and / or value range of the second duty ratio corresponding to the target control signal.

[0100] It is easily understandable that in the process of outputting a target control signal to the heating component based on the preset driving strategy, so that the heating component heats the target aerosol generating component according to the target control signal, it can be understood that the heating temperature of the aerosol generating device is controlled near the optimal temperature Tb. That is to say, the heating temperature of the aerosol generating device is adjusted from the temperature Tm corresponding to the magnetic permeability inversion point M to the optimal temperature Tb. Based on this, by making the second duty ratio less than the first duty ratio, the temperature adjustment of the aerosol generating device can be achieved.

[0101] In specific implementation, a corresponding mapping relationship can be established between the specific value of the temperature difference ΔT between the temperature Tm corresponding to the magnetic permeability inversion point M and the optimal temperature Tb and the specific value of the second duty cycle. That is, based on this mapping relationship, the value of the first duty cycle is gradually decreased, and the adjusted duty cycle value is the specific value of the second duty cycle. Here, the preheating control signal corresponding to the first duty cycle and the target control signal corresponding to the second duty cycle can be PWM signals with the same period P. Since the second duty cycle is less than the first duty cycle, under the action of this target control signal, the temperature of the heating component can be adjusted from the temperature Tm corresponding to the magnetic permeability inversion point M to the optimal temperature Tb. In this way, by outputting the target control signal to the heating component according to the second duty cycle, so that the heating component heats the target aerosol generating component according to the target control signal, the temperature of the heating environment where the aerosol generating component is located can be the optimal temperature Tb.

[0102] As an embodiment, the preset driving strategy at least includes the target unit pulse width duration corresponding to the target control signal and the first pulse width interval duration, the target unit pulse width duration is less than the preheating pulse width duration of the preheating control signal, and the first pulse width interval duration is equal to the second pulse width interval duration of the preheating control signal. The above step 130 may specifically include:

[0103] Output the target control signal to the heating component according to the target unit pulse width duration and the first pulse width interval duration, so that the heating component heats the target aerosol generating component according to the target control signal.

[0104] In this embodiment, the preset driving strategy declares / indicates the target unit pulse width duration corresponding to the target control signal and the first pulse width interval duration. Since the target unit pulse width duration is less than the preheating pulse width duration of the preheating control signal, the heating duration of the heating component under the action of this target unit pulse width is shorter. Also, because the first pulse width interval duration corresponding to the target control signal is equal to the second pulse width interval duration of the preheating control signal, the heat dissipation effect of the heating component under the action of this interval duration remains unchanged, so that the heating temperature of the heating component under the action of the target control signal is less than the heating temperature of the heating component under the action of the preheating signal. From a certain perspective, it can slow down the temperature rising rate of the aerosol generating device and prevent the temperature of the aerosol generating device from exceeding the optimal temperature Tb and tending to the temperature Tc.

[0105] It can be understood that in other embodiments, the first pulse width interval duration described in the preset driving strategy can also be greater than the second pulse width interval duration of the preheating control signal. That is, when the target unit pulse width duration described in the preset driving strategy is less than the preheating pulse width duration of the preheating control signal, since the first pulse width interval duration can also be greater than the second pulse width interval duration of the preheating control signal, when the heating component performs the heating operation according to the target control signal, the action time of the first pulse width (heating duration) is shorter, and the interval duration (heat dissipation duration) between adjacent first pulses is longer. In this way, the temperature of the heating component can also be slowly adjusted from the temperature Tm corresponding to the magnetic permeability inversion point M to the optimal temperature Tb.

[0106] Figure 5 FIG. shows a flowchart of the implementation of a control method for an aerosol generating device provided in another embodiment of the present application. Different from Figure 4 In the embodiment shown, after step 120, step 210 may further be included. Specifically: Figure 5

[0107] 210: When it is determined according to the change trend of the working current that the currently mounted aerosol generating component is not the target aerosol generating component, stop outputting the preheating control signal to the heating component.

[0108] In this embodiment, if the currently mounted aerosol generating component is not the target aerosol generating component, by stopping outputting the preheating control signal to the heating component, the heating component can be controlled to stop providing the corresponding magnetic field environment, thereby avoiding the receptor of the currently mounted aerosol generating component from continuing to heat under the eddy current effect. In this way, it is possible to avoid affecting the user experience when the aerosol generating device is mounted with an incompatible aerosol generating component.

[0109] In some embodiments, the aerosol generating device may further be configured with a display unit. When stopping outputting the preheating control signal to the heating component, the display unit may also be used to display a prompt message indicating that the currently mounted aerosol generating component is not the target aerosol generating component, and / or indicating that the currently mounted aerosol generating component is incompatible with the aerosol generating device.

[0110] In the above solution, when it is determined according to the change trend of the working current that the currently mounted aerosol generating component is not the target aerosol generating component, by stopping outputting the preheating control signal to the heating component, it is possible to avoid continuously heating the aerosol generating component when the aerosol generating device is mounted with an incompatible aerosol generating component. This can not only avoid the safety hazards caused by continuous heating, but also avoid the user's misuse affecting the user experience, thereby improving the intelligence level of the aerosol generating device.

[0111] Figure 6 Please refer to Figure 6, Figure 6 The structural schematic diagram of a control device for an aerosol generating device provided by an embodiment of the present application is shown. In this embodiment, each unit included in the control device of the aerosol generating device is used to execute Figures 4 to 5 each step in the corresponding embodiment. For details, please refer to Figures 4 to 5 the relevant descriptions in the corresponding embodiment. For the sake of convenience of description, only the part related to this embodiment is shown. Refer to Figure 6 , the control device of the aerosol generating device includes: a first driving unit 601, an acquisition unit 602, and a second driving unit 603. Specifically:

[0112] The first driving unit 601 is configured to, in response to a preset instruction to heat the currently mounted aerosol generating component, output a preheating control signal to the heating component according to a preset heating strategy, so that the heating component preheats the currently mounted aerosol generating component according to the preheating control signal.

[0113] The acquisition unit 602 is configured to acquire the trend of change in the working current during the process of outputting the preheating control signal to the heating component.

[0114] The second driving unit 603 is configured to, when it is determined that the currently mounted aerosol generating component is the target aerosol generating component according to the trend of change in the working current, output a target control signal to the heating component based on a preset driving strategy, so that the heating component heats the target aerosol generating component according to the target control signal.

[0115] As an embodiment, the control device of the aerosol generating device further includes:

[0116] An execution unit, configured to stop outputting the preheating control signal to the heating component when it is determined that the currently mounted aerosol generating component is not the target aerosol generating component according to the trend of change in the working current.

[0117] It can be understood that the improvement points and specific implementation manners related to the present application have been described in detail in Figures 1 to 5 the corresponding embodiment. In specific implementation, it can be based on Figures 1 to 5 the corresponding embodiment to make Figure 6 the units in the control device of the aerosol generating device provided by the embodiment execute each step in the above method embodiment, so details are not described herein again.

[0118] Figure 7 is the structural block diagram of an aerosol generating device provided by an embodiment of the present application. As shown in Figure 7As shown, the aerosol generating device 7 of this embodiment includes: a processor 70, a memory 71, and a computer program 72 stored in the memory 71 and executable on the processor 70, such as a program for the control method of the aerosol generating device. When the processor 70 executes the computer program 72, the steps in each of the above 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 70 executes the computer program 72, the functions of each unit in the above Figure 6 corresponding embodiment are implemented. For specific details, please refer to Figure 6 the relevant description in the corresponding embodiment, which will not be elaborated here.

[0119] The embodiment of the present application also provides an aerosol generation system, which includes an aerosol generation component and also includes an aerosol generating device provided in the above embodiment.

[0120] It can be understood that the improvement points and specific implementation methods 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.

[0121] The above 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 make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and shall 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. The aerosol generating device includes a heating component. The control method includes: In response to a preset instruction to drive the currently carried aerosol generating component to be heated, output a preheating control signal to the heating component according to a preset heating strategy, so that the heating component preheats the currently carried aerosol generating component according to the preheating control signal; During the process of outputting the preheating control signal to the heating component, obtain the change trend of the working current; When it is determined that the currently carried aerosol generating component is the target aerosol generating component according to the change trend of the working current, output a target control signal to the heating component based on a preset driving strategy, so that the heating component heats the target aerosol generating component according to the target control signal.

2. The control method according to claim 1, characterized in that, It further includes: When it is determined that the currently carried aerosol generating component is not the target aerosol generating component according to the change trend of the working current, stop outputting the preheating control signal to the heating component.

3. The control method according to claim 1 or 2, characterized in that The preset heating strategy at least includes a first duty ratio corresponding to the preheating control signal; The step of outputting the preheating control signal to the heating component according to the preset heating strategy includes: Output the preheating control signal to the heating component according to the first duty ratio.

4. The control method according to claim 1, wherein The step of obtaining the change trend of the working current during the process of outputting the preheating control signal to the heating component includes: During the process of outputting the preheating control signal to the heating component, detect a plurality of working current detection values of the aerosol generating device according to a preset detection strategy; wherein, the preset detection strategy at least includes a detection timing, and the detection timing corresponds to the preheating pulse width of the preheating control signal; Take the change trend of the magnitudes of the plurality of current detection values as the change trend of the working current.

5. The control method according to claim 4, wherein After the step of taking the change trend of the magnitudes of the plurality of current detection values as the change trend of the working current, it further includes: If a first inflection point current value is determined according to the plurality of current detection values, determine that the currently carried aerosol generating component is the target aerosol generating component; or If a first inflection point current value and a second inflection point current value are determined according to the plurality of current detection values, and the detection time of the second inflection point current value is later than that of the first inflection point current value, determine that the currently carried aerosol generating component is the target aerosol generating component; and / or After the step of obtaining the change trend of the working current, it further includes: Execute the step of obtaining the change trend of the working current N times to obtain N groups of a plurality of current detection values, and when the first inflection point current values determined in each group of the plurality of current detection values are all equal, determine that the currently carried aerosol generating component is the target aerosol generating component; where N is a positive integer greater than 1.

6. The control method according to claim 3, wherein The preset driving strategy at least includes a second duty ratio corresponding to the target control signal, and the second duty ratio is less than the first duty ratio; Outputting a target control signal to the heating component based on a preset driving strategy, so that the heating component performs a heating operation on the target aerosol generating component according to the target control signal, includes: Outputting the target control signal to the heating component according to the second duty cycle, so that the heating component performs a heating operation on the target aerosol generating component according to the target control signal.

7. The control method according to claim 3, characterized in that The preset driving strategy at least includes a target unit pulse width duration corresponding to the target control signal and a first pulse width interval duration, the target unit pulse width duration is less than the preheating pulse width duration of the preheating control signal, and the first pulse width interval duration is equal to the second pulse width interval duration of the preheating control signal; Outputting a target control signal to the heating component based on a preset driving strategy, so that the heating component performs a heating operation on the target aerosol generating component according to the target control signal, includes: Outputting the target control signal to the heating component according to the target unit pulse width duration and the first pulse width interval duration, so that the heating component performs a heating operation on the target aerosol generating component according to the target control signal.

8. A control device for an aerosol generating device, characterized in that, The aerosol generating device is used to carry an aerosol generating component, the aerosol generating device includes a heating component, and the control device includes: A first driving unit, configured to respond to a preset instruction to drive the currently carried aerosol generating component to be heated, and output a preheating control signal to the heating component according to a preset heating strategy, so that the heating component performs a preheating operation on the currently carried aerosol generating component according to the preheating control signal; An acquisition unit, configured to acquire a working current change trend during the process of outputting the preheating control signal to the heating component; A second driving unit, configured to, when determining that the currently carried aerosol generating component is a target aerosol generating component according to the working current change trend, output a target control signal to the heating component based on a preset driving strategy, so that the heating component performs a heating operation on the target aerosol generating component according to the target control signal.

9. An aerosol generating device, characterized in that, 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, the steps of the control method of the aerosol generating device according to any one of claims 1 to 7 are implemented.

10. An aerosol generating system, characterized in that, Includes an aerosol generating component, and also includes the aerosol generating device according to claim 9.

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