Control method and control system based on three-ring control electric toothbrush and storage medium

Abstract

The embodiment of the invention discloses a control method and system based on a three-ring control electric toothbrush and a storage medium, a transmission shaft of the electric toothbrush is in transmission connection with a motor shaft of a driving motor, and a brush head of the electric toothbrush is in transmission connection with the transmission shaft; the control method comprises the steps of obtaining a position angle of a motor shaft based on a position ring of a driving motor; setting a zero reference according to the position angle; and when the electric toothbrush is started and executes different control modes, a control program is formulated and operated according to the currently executed control mode and the zero reference. Different driving modes are achieved through the same driving motor.

Description

Technical Field

[0001] The present application relates to the field of electric toothbrushes, and in particular to a control method, a control system and a storage medium based on a three-ring control electric toothbrush. Background Art

[0002] An electric toothbrush is one that uses a high-speed vibrating drive motor to drive the brush head to rotate or vibrate. The high-frequency vibration or rotation of the brush head instantly breaks down the toothpaste into fine foam, which penetrates deep into the gaps between teeth to clean.

[0003] With the progress of the times, people are no longer just concerned about cleaning the tooth surface, but also about cleaning the tongue coating and tartar on the teeth. There are different cleaning brush heads for different cleaning purposes, such as using a cleaning brush to clean the tooth surface, a tongue coating brush to clean the tongue coating, and a toothbrush to clean tartar. Different cleaning brush heads have different working methods. For example, a cleaning brush cleans the tooth surface by rotating and / or vibrating the brush head, a tongue coating brush cleans by rotating the brush head, and a toothbrush requires the toothbrush to vibrate at a high frequency to break up tartar attached to the teeth. Therefore, different cleaning brush heads are replaced when different cleaning is needed. At the same time, since it is driven by the same drive motor, it is necessary to drive different cleaning brush heads to perform different motion modes. Therefore, the drive motor needs to have different drive modes when driving different cleaning brush heads.

[0004] In summary, the technical problem that the present invention actually aims to solve is how to provide a method for realizing different driving modes by using the same driving motor.

[0005] The above contents are only used to assist in understanding the technical solution of the invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0006] In view of the above-mentioned problem that different driving modes cannot be achieved through the same driving motor, the present invention proposes a control method for an electric toothbrush based on three-ring control, aiming to solve the technical problem that different driving modes cannot be achieved through the same driving motor.

[0007] To achieve the above-mentioned purpose, the present invention proposes a control method for an electric toothbrush based on a three-ring control, wherein the transmission shaft of the electric toothbrush is transmission-connected to the motor shaft of the driving motor, and the brush head of the electric toothbrush is transmission-connected to the transmission shaft; the control method comprises the following steps:

[0008] Acquire the position angle of the motor shaft based on the position loop of the driving motor;

[0009] Set the zero reference according to the position angle;

[0010] When the electric toothbrush is started and different control modes are executed, a control program is formulated and run according to the currently executed control mode and the zero position reference.

[0011] In one embodiment, the control mode includes at least a sweep mode, a high frequency mode, and a sweep vibration mode; wherein,

[0012] When the electric toothbrush performs a sweeping mode, the driving motor drives the motor shaft to reciprocate;

[0013] When the electric toothbrush executes the high-frequency mode, the driving motor drives the motor shaft to vibrate at a high frequency;

[0014] When the electric toothbrush performs the sweeping vibration mode, the driving motor drives the motor shaft to perform mechanical vibration.

[0015] In one embodiment, when the electric toothbrush is started and executes different control modes, the steps of formulating a control program and running the control program according to the currently executed control mode and the zero reference, when the control mode is the sweeping mode, specifically include:

[0016] Set the rotation angle according to the zero position reference;

[0017] Setting a target rotation angle of the position ring according to the rotation angle;

[0018] The position loop controls the motor shaft to reciprocate according to the set target rotation angle.

[0019] In one embodiment, the rotation range of the motor shaft is 0°~360°.

[0020] In one embodiment, when the electric toothbrush is started and executes different control modes, the steps of formulating a control program and running the control program according to the currently executed control mode and the zero reference, when the control mode is the high frequency mode, specifically include:

[0021] Set the amplitude angle and amplitude frequency according to the zero reference;

[0022] Set the target amplitude angle of the position loop according to the amplitude angle, and set the target frequency of the speed loop according to the amplitude frequency;

[0023] The position loop that sets the target amplitude angle and the speed loop that sets the target frequency control the motor shaft to vibrate at high frequency.

[0024] In one embodiment, when the position loop controls the motor shaft to vibrate at high frequency according to the set target amplitude angle, the amplitude deflection value of the motor shaft is -10° to +10° of the initial angle; when the speed loop controls the motor shaft to vibrate at high frequency according to the set target frequency, the vibration frequency of the motor shaft is 1.5KHZ to 1.7KHZ.

[0025] In one embodiment, when the electric toothbrush is started and executes different control modes, the steps of formulating a control program and running the control program according to the currently executed control mode and the zero reference, when the control mode is the sweep vibration mode, specifically include:

[0026] Set the mechanical vibration angle and mechanical vibration frequency according to the zero position reference;

[0027] The target mechanical vibration angle of the position loop is set according to the mechanical vibration angle, and the target mechanical vibration frequency of the speed loop is set according to the mechanical vibration frequency;

[0028] The motor shaft is controlled to perform mechanical vibration according to the position loop that sets the target mechanical vibration angle and the speed loop that sets the target mechanical vibration frequency.

[0029] In one embodiment, when the position loop controls the motor shaft to vibrate mechanically according to a set target mechanical vibration angle, the mechanical vibration deflection value of the motor shaft is -10° to +10° of the initial angle; when the speed loop controls the motor shaft to vibrate mechanically according to a set target mechanical vibration frequency, the vibration frequency of the motor shaft is 400HZ to 450HZ.

[0030] The present invention also provides a control system for an electric toothbrush, comprising:

[0031] Acquisition module: used to acquire the position angle of the motor shaft based on the position loop of the driving motor;

[0032] Setting module: used to set the zero position reference according to the position angle obtained by the acquisition module;

[0033] Control module: used to formulate and run a control program according to the currently executed control mode and the zero position reference when the electric toothbrush is started and executes different control modes.

[0034] The present invention also provides a readable storage medium, which stores a control program for an electric toothbrush. When the control program for the electric toothbrush is executed by a processor, the steps of the control method for the multifunctional electric toothbrush as described above are implemented.

[0035] The control method of the electric toothbrush based on three-ring control of the present invention obtains the position angle of the motor shaft through the position ring of the driving motor, and resets the zero position reference of the motor shaft according to the obtained position angle. When using different cleaning brush heads, a control program is formulated according to the zero position reference and the operation of the driving motor is controlled, so that different control programs are formulated according to different cleaning brush heads. Compared with using the same driving motor only with a cleaning brush to clean the tooth surface, the function of the electric toothbrush is enriched, and the same electric toothbrush can be used to achieve different tooth cleaning functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A schematic diagram showing the steps of an embodiment of a control method for an electric toothbrush based on three-ring control of the present invention;

[0038] Figure 2 for Figure 1 Schematic diagram of steps in which the control mode is the sweep mode;

[0039] Figure 3 for Figure 1 Schematic diagram of the steps in which the middle control mode is the high frequency mode;

[0040] Figure 4 for Figure 1 Schematic diagram of the steps when the control mode is the sweep vibration mode.

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B.

[0045] The present invention proposes a control method for an electric toothbrush based on three-ring control, in which the transmission shaft of the electric toothbrush is transmission-connected to the motor shaft of the driving motor, and the brush head of the electric toothbrush is transmission-connected to the transmission shaft. That is, when the electric toothbrush is in use, the operation of the brush head is controlled in sequence by the motor shaft and the transmission shaft when the driving motor is running. It should be noted that, in some embodiments, the transmission shaft and the motor shaft are an integral whole. It should be noted that the three rings of the motor include a position loop, a speed loop, and a current loop. It should be noted that the motor shaft referred to in this embodiment refers to the rotating shaft of the driving motor that drives the brush head of the electric toothbrush to rotate and vibrate. The transmission shaft referred to in this embodiment refers to the intermediate shaft that transmission-connects the motor shaft and the brush head. The brush head referred to in this embodiment refers to a component that can clean the oral cavity under the drive of the driving motor.

[0046] In the embodiment of the present invention, please refer to Figures 1 to 4 As shown, the control method of the electric toothbrush based on three-loop control includes the following steps: obtaining the position angle of the motor shaft based on the position loop of the driving motor; setting the zero position reference according to the position angle; when the electric toothbrush is started and executes different control modes, formulating a control program according to the currently executed control mode and the zero position reference and running the control program. The specific steps are as follows.

[0047] Step S100: Obtain the position angle of the motor shaft based on the position loop of the driving motor. It should be noted that the position loop is a detection device on the driving motor for detecting the motor shaft. Since the motor shaft will rotate under the drive of the driving motor, it is necessary to detect the initial position or the position after rotation of the motor shaft. Since the motor shaft is connected to the brush head through the transmission shaft, the brush head and the motor shaft rotate synchronously, that is, when the position of the motor shaft is detected by the position loop, it represents the real-time position of the brush head. In this embodiment, the position loop includes but is not limited to obtaining the position angle of the motor shaft through an encoder or a Hall sensor. In this embodiment, it is implemented and described by a Hall sensor. Specifically, a Hall sensor is set on the circuit board, and a pair of magnetic poles are arranged at the tail of the motor shaft with a circumferential difference of 180 degrees. The magnetic poles are coupled with the Hall sensor. The Hall sensor on the circuit board can detect the strength of the two magnetic poles, thereby obtaining the sine and cosine curves of the magnetic signal strength and the phase angle difference of one quarter π. These two curves can obtain the position of the motor shaft at each moment through the inverse trigonometric function (arcsin or arccos), thereby obtaining the position angle of the motor shaft. In this embodiment, the Hall sensor can detect weak magnetic field changes and meet the requirements of high precision. It adopts contactless operation, low cost, small size, easy installation, easy integration and automatic control. The frequency of the Hall sensor can reach 1MHz, which is suitable for high-speed response application scenarios.

[0048] Step S200: Set the zero reference according to the position angle of the motor shaft obtained in the above step S100. It should be noted that in this embodiment, since the brush head of the electric toothbrush is not fixed, but rotates freely without being driven by a motor, when the brush head rotates, the motor shaft will also rotate. Therefore, each time the electric toothbrush is used, the position of the motor shaft or the position of the brush head is different, and the rotation of the brush head of the electric toothbrush is not a 360° circular rotation, but a reciprocating interval rotation around a set position, and the set position is set according to the position angle of the motor shaft obtained in the above step S100. For example, after the user manually rotates the brush head, the motor shaft of the drive motor will rotate synchronously with the brush head to the first position. When using the electric toothbrush, the position angle of the motor shaft is obtained through the position ring, and the current position of the motor shaft is determined, so that the motor shaft reciprocates and vibrates around the current position of the motor shaft, so as to control the brush head to reciprocate and vibrate around the current position. It should be noted that the amplitude and frequency of the rotation of the motor shaft are determined according to different settings, namely the gear position and mode setting of the electric toothbrush.

[0049] Step S300: When the electric toothbrush is started and executes different control modes, a control program is formulated and run according to the currently executed control mode and the zero reference to control the electric toothbrush to work. It should be noted that the control mode of the electric toothbrush includes at least a sweeping mode, a high-frequency mode, and a sweeping vibration mode, and the corresponding cleaning modes are tongue coating cleaning, dental calculus cleaning, and tooth cleaning. Due to the different cleaning parts, the brush head needs to be rotated and / or vibrated in different ways. For example, when the electric toothbrush runs the sweeping mode to clean the tongue coating, the brush head reciprocates around the set zero reference to sweep and clean the tongue coating to clean the surface of the tongue coating. It should be noted that in order to clean the tongue coating with higher requirements, a tongue coating brush is selected for the brush head when cleaning the tongue coating. For another example, when the electric toothbrush runs the high-frequency mode to clean dental calculus, the brush head vibrates at a high frequency around the set zero reference to resonate with the dental calculus, so that the dental calculus is shattered and falls off the teeth. It should be noted that in order to perform higher requirements on dental calculus cleaning and facilitate dental calculus cleaning, the brush head is replaced with a dental cleaning instrument when performing dental calculus cleaning. For another example, when the electric toothbrush is running in the sweeping vibration mode to clean teeth, the brush head mechanically vibrates around the set zero reference to clean the surface of the teeth or the gaps between the teeth. It should be noted that in order to perform higher requirements on the surface of the teeth or the gaps between the teeth, the brush head is replaced with a toothbrush when cleaning the surface of the teeth or the gaps between the teeth.

[0050] In this embodiment, the position angle of the motor shaft is obtained through the position ring of the driving motor, and the zero position reference of the motor shaft is reset according to the obtained position angle. When different cleaning brush heads are used, a control program is formulated according to the zero position reference and the operation of the driving motor is controlled, so that different control programs can be formulated according to different cleaning brush heads. Compared with cleaning the tooth surface only with a cleaning brush through the same driving motor, the function of the electric toothbrush is enriched, and the same electric toothbrush can be used to achieve different cleaning functions.

[0051] Furthermore, when the electric toothbrush is started and executes different control modes, in the steps of formulating a control program and running the control program according to the currently executed control mode and the zero-position reference, when the control mode is a sweeping mode, it specifically includes: setting the rotation angle according to the zero-position reference; setting the target rotation angle of the position ring according to the rotation angle, and controlling the motor shaft to reciprocate according to the position ring with the set target rotation angle.

[0052] In the above step S300, refer to Figure 1 and Figure 2 As shown, when the electric toothbrush executes the sweeping mode, the following steps are specifically included:

[0053] Step S310: Set the rotation angle according to the zero reference set in step S200. In this embodiment, the rotation angle refers to the angle between the maximum strokes when the motor shaft of the drive motor reciprocates around the zero reference. In some embodiments, the angle between the maximum strokes when the motor shaft of the drive motor reciprocates around the zero reference is less than 180°.

[0054] Step S320: setting the target rotation angle of the position ring according to the rotation angle, that is, after determining the range of motion of the motor shaft of the drive motor according to the above step S310, setting the target rotation angle of the position ring. It should be noted that in some embodiments, the zero reference is on the bisector of the target rotation angle.

[0055] Step S330: According to the position ring of the target rotation angle set in the above step S320, the motor shaft of the driving motor is precisely controlled to rotate back and forth, so as to control the tongue coating brush to rotate back and forth at the set rotation angle to sweep and clean the tongue coating.

[0056] In this embodiment, a fixed rotation angle is set according to the zero position reference so that the tongue brush can reciprocate within the stroke range. Compared with the case where no rotation angle is set, the rotation stroke of the tongue brush is reduced when the tongue brush rotates in a circle, so that the tongue brush can reciprocate in a fan shape within the stroke range, thereby improving the efficiency of the tongue brush in cleaning the tongue and reducing the idle running of the electric toothbrush.

[0057] Furthermore, the rotation range of the motor shaft is 0°~360°.

[0058] In this embodiment, when the motor shaft rotates on the driving motor, the rotation range of the motor shaft is 0°~360°, so the brush head can rotate freely to any angle, and the stop position is set as the zero reference. In this embodiment, by setting the rotation range of the motor shaft to 0°~360°, the brush head can rotate arbitrarily on the brush handle, and after rotation, there is no need to perform a reset operation, and the electric toothbrush can be used directly; and when switching modes, there is no need to perform a reset operation, and the mode can be switched at any position, so the operation is simpler.

[0059] Furthermore, when the electric toothbrush is started and executes different control modes, in the steps of formulating a control program and running the control program according to the currently executed control mode and the zero-position reference, when the control mode is a high-frequency mode, it specifically includes: setting the amplitude angle and the amplitude frequency according to the zero-position reference; setting the target amplitude angle of the position loop according to the amplitude angle, and setting the target frequency of the speed loop according to the amplitude frequency; controlling the motor shaft to vibrate at high frequency according to the position loop with the set target amplitude angle and the speed loop with the set target frequency.

[0060] In this embodiment, see Figure 1 and Figure 4 As shown, when the electric toothbrush executes the high frequency mode, the following steps are specifically included.

[0061] Step S340: setting the amplitude angle and amplitude frequency of the motor shaft of the driving motor according to the zero reference set in step S200. It should be noted that the amplitude angle refers to the angle between the maximum vibration strokes of the motor shaft when the motor shaft of the driving motor vibrates at high frequency, and the amplitude frequency refers to the speed at which the motor shaft of the driving motor vibrates.

[0062] Step S350: Set the target amplitude angle of the position loop according to the amplitude angle, and set the target frequency of the speed loop according to the amplitude frequency. That is, the target amplitude angle of the position loop is set according to the amplitude angle, and after determining the vibration range of the motor shaft of the drive motor according to the above step S340, the target amplitude angle of the position loop is set. It should be noted that in some embodiments, the zero reference is on the angular bisector of the target amplitude angle. Set the target frequency of the speed loop according to the amplitude frequency, so as to control the motor shaft to vibrate at a high frequency at the target frequency according to the target frequency.

[0063] Step S360: Accurately control the motor shaft of the drive motor to vibrate at high frequency according to the position loop of the target amplitude angle and the speed loop of the target frequency set in the above step S350, so as to control the toothbrush to vibrate at high frequency at the set amplitude angle and amplitude frequency to break and clean dental tartar.

[0064] Furthermore, when the position loop controls the motor shaft to vibrate at high frequency according to the set target amplitude angle, the amplitude deflection value of the motor shaft is -10° to +10° of the initial angle; when the speed loop controls the motor shaft to vibrate at high frequency according to the set target frequency, the vibration frequency of the motor shaft is 1.5KHZ to 1.7KHZ.

[0065] In this embodiment, when the electric toothbrush is running in high-frequency mode and the motor shaft is controlled to vibrate at high frequency according to the above content, the deflection value of the amplitude of the motor shaft is -10° to +10° of the initial angle, that is, when the motor shaft is vibrating at high frequency, the angle between the maximum amplitude strokes of the motor shaft is not greater than 20°. At the same time, when the electric toothbrush is running in high-frequency mode and the motor shaft is controlled to vibrate at high frequency according to the above content, the vibration frequency of the motor shaft is 1.5KHZ to 1.7KHZ. It is specifically set according to the style of the electric toothbrush, etc.

[0066] It should be noted that the initial angle described in this embodiment refers to the fixed position of the motor shaft when the zero position reference is set according to the position angle as the initial angle.

[0067] Furthermore, when the electric toothbrush is started and executes different control modes, in the steps of formulating a control program and running the control program according to the currently executed control mode and the zero-position reference, when the control mode is the sweep vibration mode, it specifically includes: setting the mechanical vibration angle and the mechanical vibration frequency according to the zero-position reference; setting the target mechanical vibration angle of the position loop according to the mechanical vibration angle, and setting the target mechanical vibration frequency of the speed loop according to the mechanical vibration frequency; controlling the motor shaft to vibrate mechanically according to the position loop that sets the target mechanical vibration angle and the speed loop that sets the target mechanical vibration frequency.

[0068] In this embodiment, see Figure 1 and Figure 4 As shown, when the electric toothbrush executes the sweeping vibration mode, the following steps are specifically included.

[0069] Step S370: The mechanical vibration angle and the mechanical vibration frequency of the drive motor are set according to the zero reference set in step S200. It should be noted that the mechanical vibration angle described in this embodiment refers to the angle between the maximum rotation strokes of the motor shaft when the motor shaft of the drive motor is mechanically vibrating, and the mechanical vibration frequency refers to the rotation frequency and / or vibration frequency of the motor shaft of the drive motor when it rotates and / or vibrates.

[0070] Step S380: Set the target mechanical vibration angle of the position loop according to the mechanical vibration angle, and set the target mechanical vibration frequency of the speed loop according to the mechanical vibration frequency. That is, the target mechanical vibration angle of the position loop is set according to the mechanical vibration angle set in the above step S370, and when the electric toothbrush executes the sweeping vibration mode, the rotation of the motor shaft is controlled according to the target mechanical vibration angle set in the position loop. It should be noted that when the motor shaft rotates, the angle between the maximum strokes of the motor shaft is less than the target mechanical vibration angle. At the same time, the target mechanical vibration frequency of the speed loop is set according to the mechanical vibration frequency set in the above step S370, and when the electric toothbrush executes the sweeping vibration mode, the rotation frequency and / or vibration frequency of the motor shaft is controlled according to the target mechanical vibration frequency set in the speed loop. It should be noted that, in some embodiments, when the motor shaft reciprocates within the stroke range, the set zero position reference is on the angular bisector of the target mechanical vibration angle.

[0071] Step S390: According to the position loop and the speed loop set in the above step S380, the motor shaft of the driving motor is controlled to perform mechanical vibration at a set rotation angle and a set rotation frequency and / or vibration frequency.

[0072] Furthermore, when the position loop controls the motor shaft to vibrate mechanically according to the set target mechanical vibration angle, the mechanical vibration deflection value of the motor shaft is -10° to +10° of the initial angle; when the speed loop controls the motor shaft to vibrate mechanically according to the set target mechanical vibration frequency, the vibration frequency of the motor shaft is 400HZ to 450HZ.

[0073] In this embodiment, when the electric toothbrush operates in the sweeping vibration mode and controls the motor shaft to perform mechanical vibration according to the above content, the mechanical vibration deflection value of the motor shaft is -10° to +10° of the initial angle, that is, when the electric toothbrush operates in the sweeping vibration mode, the maximum rotation angle of the motor shaft of the driving motor is 20°, and reciprocating rotation is performed within this range. When the electric toothbrush operates in the sweeping vibration mode and controls the motor shaft to perform mechanical vibration according to the above content, the motor shaft mechanically vibrates according to the speed of the set target mechanical vibration frequency, and the vibration frequency of the motor shaft is 400HZ to 450HZ. In this embodiment, after the user changes the toothbrush when cleaning his teeth, and controls the electric toothbrush to run the sweeping and vibration mode, the toothbrush will rotate back and forth and vibrate during the reciprocating rotation, so as to sweep and clean the tooth surface while vibrating to clean the gaps between teeth. Compared with when the toothbrush only rotates or only vibrates, the cleaning effect is better. At the same time, since the motor shaft can rotate arbitrarily and specify the zero position reference at any position after rotation, the position of the toothbrush head is adjustable, and the direction of the toothbrush head can be adjusted according to the user's holding habits to facilitate cleaning of teeth.

[0074] The present invention also proposes a control system for an electric toothbrush, which includes an acquisition module, a setting module, and a control module. Since the control system of the electric toothbrush adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. Among them, the acquisition module is used to obtain the position angle of the motor shaft based on the position ring of the driving motor. The setting module is used to set the zero-position reference according to the position angle obtained by the acquisition module. The control module is used to formulate a control and re-run the control program according to the currently executed control mode and the zero-position reference when the electric toothbrush is started and different control modes are executed.

[0075] This embodiment further provides a computer-readable storage medium, on which a control program for an electric toothbrush is stored. When the control program for the electric toothbrush is executed by a processor, the steps of the control method provided in the above embodiment are implemented.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, 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 the embodiments of the present application.

Claims

1. A control method for an electric toothbrush based on three-ring control, characterized in that: The transmission shaft of the electric toothbrush is in transmission connection with the motor shaft of the driving motor, and the brush head of the electric toothbrush is in transmission connection with the transmission shaft; the control method comprises the steps of: Acquiring the position angle of the motor shaft based on the position loop of the drive motor; Setting a zero reference according to the position angle; When the electric toothbrush is started and executes different control modes, a control program is formulated and run according to the currently executed control mode and the zero reference.

2. The control method according to claim 1, characterized in that: The control modes at least include a sweeping mode, a high frequency mode, and a sweeping vibration mode; wherein, When the electric toothbrush performs the sweeping mode, the driving motor drives the motor shaft to reciprocate; When the electric toothbrush executes the high-frequency mode, the driving motor drives the motor shaft to vibrate at a high frequency; When the electric toothbrush performs the sweeping vibration mode, the driving motor drives the motor shaft to perform mechanical vibration.

3. The control method according to claim 2, characterized in that: When the electric toothbrush is started and different control modes are executed, in the step of formulating a control program according to the currently executed control mode and the zero position reference and running the control program, when the control mode is the sweeping mode, the step specifically includes: Setting the rotation angle according to the zero reference; Setting a target rotation angle of the position ring according to the rotation angle; The motor shaft is controlled to reciprocate according to the position loop that sets the target rotation angle.

4. The control method according to claim 3, characterized in that: The rotation range of the motor shaft is 0°~360°.

5. The control method according to claim 2, characterized in that: When the electric toothbrush is started and different control modes are executed, in the step of formulating a control program according to the currently executed control mode and the zero reference and running the control program, when the control mode is the high frequency mode, the step specifically includes: Setting the amplitude angle and the amplitude frequency according to the zero reference; Setting a target amplitude angle of the position loop according to the amplitude angle, and setting a target frequency of the speed loop according to the amplitude frequency; The motor shaft is controlled to vibrate at a high frequency according to the position loop for setting the target amplitude angle and the speed loop for setting the target frequency.

6. The control method according to claim 5, characterized in that: When the motor shaft is controlled to vibrate at high frequency according to the position loop that sets the target amplitude angle, the amplitude deflection value of the motor shaft is -10° to +10° of the initial angle; when the motor shaft is controlled to vibrate at high frequency according to the speed loop that sets the target frequency, the vibration frequency of the motor shaft is 1.5KHZ to 1.7KHZ.

7. The control method according to claim 2, characterized in that: When the electric toothbrush is started and different control modes are executed, in the step of formulating a control program according to the currently executed control mode and the zero position reference and running the control program, when the control mode is the sweep vibration mode, the step specifically includes: Setting the mechanical vibration angle and the mechanical vibration frequency according to the zero reference; Setting a target mechanical vibration angle of the position loop according to the mechanical vibration angle, and setting a target mechanical vibration frequency of the speed loop according to the mechanical vibration frequency; The motor shaft is controlled to perform mechanical vibration according to the position loop for setting the target mechanical vibration angle and the speed loop for setting the target mechanical vibration frequency.

8. The control method according to claim 7, characterized in that: When the motor shaft is controlled to vibrate mechanically according to the position loop that sets the target mechanical vibration angle, the mechanical vibration deflection value of the motor shaft is -10° to +10° of the initial angle; when the motor shaft is controlled to vibrate mechanically according to the speed loop that sets the target mechanical vibration frequency, the vibration frequency of the motor shaft is 400HZ to 450HZ.

9. A control system for an electric toothbrush, characterized in that: include: Acquisition module: used to acquire the position angle of the motor shaft based on the position loop of the driving motor; Setting module: used for setting a zero position reference according to the position angle acquired by the acquisition module; Control module: used to formulate and run a control program according to the currently executed control mode and the zero position reference when the electric toothbrush is started and executes different control modes.

10. A readable storage medium storing a control program for an electric toothbrush, wherein the control program for the electric toothbrush, when executed by a processor, implements the steps of the control method for an electric toothbrush according to any one of claims 1 to 8.

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