CN118040611A - Motor control method, motor control device, electronic equipment and storage medium - Google Patents
Motor control method, motor control device, electronic equipment and storage medium Download PDFInfo
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Abstract
The application relates to a motor control method and device of an electric tool, electronic equipment and a computer storage medium, wherein the control method comprises the following steps: detecting characteristic parameters of the motor, wherein the characteristic parameters comprise at least two of current, temperature and the number of times of locked rotation of the motor; when the working state of the motor enters an abnormal state, determining target protection time according to the characteristic parameters of the motor at the moment, wherein the working state comprises a normal state and an abnormal state; and when the time for the motor to enter an abnormal state reaches the target protection time, controlling the motor to stop. According to the application, the proper protection time is determined in a multi-dimensional manner according to the current, the temperature and the number of times of stalling of the motor, and the motor is timely protected under the condition of fully exerting the working capacity of the motor, so that the damage caused by long-time abnormal working of the motor is avoided.
Description
Technical Field
The present invention relates to the field of electric tools, and in particular, to a motor control method for an electric tool, a control device, an electronic device, and a computer storage medium applying the motor control method.
Background
When the motor rotates, the rotating magnetic field formed by the stator windings drags the rotor to rotate, and the magnetic field generated by the induced current in the rotor also induces counter-potential in the stator windings, so that the effect of preventing the current of the motor stator from increasing is achieved. However, if the motor is blocked, the motor still outputs torque when the rotating speed is 0 due to the reasons of overlarge load, mechanical faults caused by dragging, damage of bearings, sweeping of bores and the like, at the moment, the power factor of the motor is extremely low, the counter potential is zero, all voltages are loaded on the windings, the current can reach several times of rated current at maximum, and the motor can be burnt out after a long time.
Therefore, there is a need to design a motor control scheme to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides an improved scheme: a motor control method applied to an electric tool, the control method comprising:
Detecting characteristic parameters of the motor, wherein the characteristic parameters comprise at least two of current, temperature and the number of times of locked rotation of the motor;
when the working state of the motor enters an abnormal state, determining target protection time according to the characteristic parameters of the motor at the moment, wherein the working state comprises a normal state and an abnormal state;
And when the time for the motor to enter an abnormal state reaches the target protection time, controlling the motor to stop.
Preferably, before the target protection time of the motor is determined according to the characteristic parameter, a corresponding relationship between the protection time and the motor characteristic parameter is pre-established and stored.
Preferably, before the corresponding relation between the protection time and the motor characteristic parameter is pre-established and stored, detecting the working state of the motor under the single conditions of preset current, preset temperature and preset number of times of occurrence of locked-rotor, and determining the preset protection time of the motor under the single conditions of preset current, preset temperature and preset number of times of occurrence of locked-rotor according to the working state of the motor.
Preferably, the corresponding relation includes a two-dimensional mapping table of protection time, current and temperature, where the two-dimensional mapping table is obtained by the preset current, the preset temperature and the corresponding preset protection time. Preferably, the method comprises the steps of,
Preferably, the corresponding relation includes setting a protection time according to a fixed weight according to a current, a temperature and the number of times of occurrence of locked-rotor, and the protection time is obtained by setting the preset current, the preset temperature, the preset number of times of occurrence of locked-rotor and the corresponding preset protection time according to the fixed weight.
Preferably, the corresponding relation comprises setting protection time according to an AI learning model according to current, temperature and the number of times of occurrence of the locked rotor, wherein the protection time is obtained by the preset current, the preset temperature, the preset number of times of occurrence of the locked rotor and the corresponding preset protection time according to the AI learning model.
Preferably, the AI learning model performs data fusion on the preset protection time according to the preset current, the preset temperature, the preset number of times of occurrence of locked-rotor and the corresponding preset protection time, so as to obtain the protection time.
The application also provides a control device of the electric tool motor, which comprises:
a detection unit for detecting a characteristic parameter of the motor;
A determining unit for determining a working state and a target protection time according to the motor characteristic parameter;
And a processing unit which is communicated with the determining unit and adopts the motor control method.
The application also provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the motor control method when executing the computer program.
The present application also provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the above-described motor control method.
Compared with the prior art, the application has the following beneficial effects: the application provides a control method, a device, electronic equipment and a computer storage medium for an electric tool motor, wherein the control method, the device, the electronic equipment and the computer storage medium are used for controlling the motor according to three parameters affecting the operation of the motor: the current, temperature and the number of times of locked rotation of the motor are set in a multi-dimensional mode, and when the time of the motor in an abnormal state reaches the protection time, the motor is controlled to stop for protection. Under the condition of fully playing the working capacity of the motor, the motor can be timely protected, damage caused by abnormal operation of the motor is prevented, the working efficiency and the safety of the motor are improved, and the service life of the motor is prolonged.
Drawings
Fig. 1 is a schematic flow chart of a motor control method provided by the application;
FIG. 2 is a circuit diagram of a current sampling circuit according to the present application;
FIG. 3 is a schematic diagram of a two-dimensional mapping relationship between current and temperature provided by the present application;
FIG. 4 is a schematic diagram of a data fusion process according to the present application;
FIG. 5 is a schematic diagram of Kalman filtering according to the present application;
Fig. 6 is a schematic diagram of a control device according to the present application.
Detailed Description
The invention will be described in further detail with reference to the drawings and embodiments.
The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper", "lower", "front", "rear", etc., indicating an azimuth or a positional relationship are based on only the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
The motor protection method described in the present invention is suitable for intelligent devices such as electric tools/electric devices, as long as the above devices/tools can adopt the following disclosed technical solutions, which fall within the protection scope of the present invention.
When the motor rotates, the rotating magnetic field formed by the stator windings drags the rotor to rotate, and the magnetic field generated by the induced current in the rotor also induces counter-potential in the stator windings, so that the effect of preventing the current of the motor stator from increasing is achieved. However, when the motor is blocked and abnormal due to overlarge load, mechanical failure caused by dragging, damage of bearings, bore sweeping and the like, the current of the motor is rapidly increased, and a large amount of heat is generated to burn out the motor when the time is slightly long. Therefore, the state of the motor needs to be detected in real time, the abnormal occurrence of locked rotor of the motor is judged in time, and effective protection measures are adopted.
The invention solves the problems in the prior art by adopting the following technical scheme: a motor control method applied to an electric tool, as shown in fig. 1, includes:
Detecting characteristic parameters of the motor, wherein the characteristic parameters comprise at least two of current, temperature and the number of times of locked rotation of the motor;
Determining the working state and target protection time of the motor according to the characteristic parameters, wherein the working state comprises a normal state and an abnormal state;
And when the time of the motor entering the abnormal state reaches the target protection time, controlling the motor to stop.
In this embodiment, the current of the motor is specifically a bus current of the motor, and the bus current of the motor is detected and filtered, where the method for detecting the bus current of the motor is a common method for those skilled in the art, and will not be described herein. As shown in FIG. 2, a current sampling circuit is provided, wherein RS1 is a current sampling resistor, the value is generally 1-10 mΩ, the operational amplifier U1A is used for converting the current flowing through RS1 into voltage and amplifying the voltage, the output I1 of the operational amplifier U1A is the bus instantaneous current, the actual waveform of I1 has larger jitter because of no filtering treatment, and the waveform of the bus average current I2 after filtering is relatively stable and smooth after I1 passes through RC filter circuits of R3 and C2. It can be understood by those skilled in the art that the filtering method provided by the present invention is not limited to the above-mentioned circuit connection mode, and the filtering method for the current falls within the protection scope of the present invention. In other embodiments, the current of the motor may also be three-phase current of the motor, and the invention is not limited to the selection of current by the current to reflect the state of the motor.
In this embodiment, detecting the temperature of the motor specifically includes providing a temperature sensor, such as a thermistor, on the motor, and the method for detecting the temperature according to the temperature sensor is a common way for those skilled in the art, and will not be described herein. In other embodiments, the temperature of the motor can be detected by other devices, and the method for detecting the temperature is not limited in the invention.
In this embodiment, detecting the number of times of occurrence of locked-rotor of the motor specifically includes: when the time of the motor entering the abnormal state reaches the target protection time, the motor is controlled to stop, and the number of times of blocking rotation is recorded to be increased once.
Before the target protection time of the motor is determined according to the characteristic parameters, the corresponding relation between the protection time and the motor characteristic parameters is pre-established and stored. Detecting the working state of the motor under the single conditions of preset current, preset temperature and preset number of times of occurrence of locked-rotor, and determining the preset protection time of the motor under the single conditions of the preset current, the preset temperature and the preset number of times of occurrence of locked-rotor according to the working state of the motor.
Specifically, a single variable is controlled, the motor is set to work under different preset currents, and the working state of the motor is detected in real time. When the working state of the motor enters an abnormal state, the duration time from the entering of the abnormal state to the forced shutdown protection of the motor is recorded, and the time is set as the protection time under the current preset current. In other embodiments, the protection time set at the current preset current can be smaller than the duration time from the abnormal state to the forced shutdown protection of the motor, so as to ensure that the time for the motor to enter the abnormal state can still work between the reaching of the protection time, prevent the motor from triggering the forced shutdown protection, reduce the damage to the motor and prolong the service life of the motor.
The motor operating states include a normal state and an abnormal state. The motor has different working performances when in different working states. When the motor is in a normal state, the motor can work normally and the working performance is higher than a high threshold; when the motor is in an abnormal state, the motor can still work, but the working performance of the motor is between a high threshold value and a low threshold value. When the working performance of the motor is lower than a low threshold value, the motor cannot work, and forced shutdown protection is triggered. In the invention, specific values of a high threshold and a low threshold of the working performance of the motor are not limited, and different values can be set according to different types of motors to distinguish whether the motor works normally or not and whether forced shutdown protection is carried out or not. In other embodiments, determining the operating state of the motor includes determining by a current or temperature of the motor, in particular, when the current of the motor is less than a first threshold current, the motor is in a normal state; when the current of the motor is larger than or equal to the first threshold current and smaller than or equal to the second threshold current, the motor is in an abnormal state; when the current of the motor is larger than the second threshold current, the motor cannot work, and forced shutdown protection is triggered; the first threshold current is smaller than the second threshold current, and specific values of the first threshold current and the second threshold current are not limited, so that the working states of the motor can be distinguished. When the temperature of the motor is smaller than the first threshold temperature, the motor is in a normal state; when the temperature of the motor is greater than or equal to the first threshold temperature and less than or equal to the second threshold temperature, the motor is in an abnormal state; when the temperature of the motor is higher than the second threshold temperature, the motor cannot work, and forced shutdown protection is triggered; the first threshold temperature is smaller than the second threshold temperature, and specific numerical values of the first threshold temperature and the second threshold temperature are not limited, so that the working states of the motor can be distinguished.
Similarly, a single variable is controlled, the motor is set to work at different preset temperatures, and the working state of the motor is detected in real time. When the working state of the motor enters an abnormal state, recording the duration time from the entering of the abnormal state to the forced shutdown protection of the motor, and recording the duration time as the protection time at the current preset temperature. In other embodiments, the protection time at the current preset temperature may also be set to be less than the duration of the forced shutdown protection of the motor from the abnormal state.
The motor is arranged to work under different preset times of occurrence of locked rotor, and the working state of the motor is detected in real time. When the working state of the motor enters an abnormal state, recording the duration time from the entering of the abnormal state to the forced shutdown protection of the motor, and recording the duration time as the protection time under the current preset number of times of locked-rotor. In other embodiments, the protection time for setting the current preset number of times of locked-rotor may be less than the duration from the abnormal state to the forced shutdown protection of the motor.
In one embodiment, the corresponding relation between the protection time and the motor characteristic parameter includes a two-dimensional mapping table of the protection time and the current and the temperature, wherein the two-dimensional mapping table is obtained by presetting the current and the preset temperature and the corresponding preset protection time. As shown in fig. 3, a two-dimensional map is established based on current and temperature. For example, when the current is I3 and the temperature is 40 ℃, the protection time is 185ms. Specifically, when the working state of the motor enters an abnormal state, the target protection time is determined according to the current and the temperature of the motor at the moment, for example, the current of the motor is between I3 and I4 and the temperature is between 40 ℃ and 45 ℃, and the protection time is determined to be 185ms. When the time of the motor in an abnormal state reaches 185ms, the motor is controlled to stop. In the embodiment, the protection time is determined according to the two-dimensional mapping table of the current and the temperature, the motor is timely stopped for protection, damage to the motor caused by continuous abnormal operation of the motor is avoided, and the service life of the motor is prolonged.
In one embodiment, the corresponding relation between the protection time and the motor characteristic parameter includes setting a target protection time according to the current, the temperature and the number of times of occurrence of locked-rotor according to a fixed weight, wherein the target protection time is obtained by setting a preset current, a preset temperature, the number of times of occurrence of the locked-rotor and a preset protection time corresponding to the preset current, the preset temperature and the preset number of times of occurrence of the locked-rotor according to the fixed weight. Specifically, setting the current weight as S, wherein S is more than or equal to 0 and less than or equal to 1, and the protection time t I is determined under the single condition of the preset current; setting the temperature weight as P, P is more than or equal to 0 and less than or equal to 1, setting the weight of the number of times of blocked rotation to be Q by the protection time t T; determined under the single condition of the preset temperature, and setting the weight of the number of times of blocked rotation to be more than or equal to 0 and less than or equal to 1, and setting the protection time t N determined under the single condition of the number of times of blocked rotation. Wherein s+p+q=1, and a guard time t=t I*S+tT*P+tN ×q is set. S, P, Q can be selected according to engineering experience or by using a test means to select a proper combination of values, and the invention is not limited to specific values. For example, the three dimensions are more or less important, more balanced, s=1/3, p=1/3, q=1/3 can be chosen. For example, when the importance degree of the temperature dimension is higher, for example, the ambient temperature of the working condition of the whole machine is higher, or the heat dissipation of the power device is weaker, and when the importance degree of the current dimension is lower, for example, the safety margin of the power device is more sufficient, s=0.5, p=0.3, and q=0.2 can be selected. For another example, when the importance degree of the current dimension is higher, for example, the safety margin of the power device is smaller, and when the importance degree of the temperature dimension is lower, for example, the ambient temperature is not high, or the heat dissipation performance of the power device is better, s=0.2, p=0.3, and q=0.5 can be selected.
According to the embodiment, the relation between the current, the temperature, the number of times of locked rotor occurrence and the protection time is fused, the rationality of the protection time is improved through the introduction of the multidimensional parameter, the motor can be timely protected under the condition that the working capacity of the motor is fully exerted, and the operation efficiency and the operation safety of the motor are improved.
In another embodiment, the corresponding relation between the protection time and the motor characteristic parameter includes setting the protection time according to the current, the temperature and the number of times of occurrence of the locked-rotor according to an AI learning model, wherein the protection time is obtained by presetting the current, the preset temperature, the number of times of occurrence of the locked-rotor and the corresponding preset protection time according to the AI learning model.
Specifically, the AI learning model performs data fusion on the preset protection time according to the preset current, the preset temperature, the preset number of times of occurrence of locked-rotor and the corresponding preset protection time, so as to obtain the final protection time.
The data fusion aims to enable a plurality of data to be fused into a graph distribution with minimum variance and more concentrated data. As shown in fig. 4, the method specifically comprises the following steps:
s401, N different types of schemes acquire data of an observation target.
In this embodiment, the above-described scheme includes scheme 1: current from motor, scheme 2: temperature from motor, scheme 3: from a discrete mapping based on the number of stalls that have occurred.
S402, performing feature extraction transformation on the output data, and extracting a feature vector Yi representing the observed data.
S403, performing pattern recognition processing on the feature vector Yi to complete the description of each data acquisition scheme about the target.
S404, grouping, namely associating, the data about the targets according to the same targets.
S405, synthesizing the sensor data of each target by using a fusion algorithm to obtain the consistency interpretation and description of the target.
The data fusion formula:
Wherein, To estimate the true value, i.e. guard time,/>For scheme 1 based on the protection time of the motor current,/>For the protection time based on motor temperature of scheme 2, K is the gain factor.
To make the data most accurate, it is desirable that its variance be minimized, and that the following be minimized:
Wherein, To estimate the true value/>Is a variance of (c).
Because ofAnd/>Are independent of each other:
For/> Scheme 1 based on the variance of the locked rotor protection time of the motor current,/>For/>Scheme 2 is based on the variance of the locked rotor protection time for the motor temperature.
Deriving k=0, and finding the pole k' is the point where the minimum value is located.
Thus, the above k,、/>And substituting the formula, data fusion can be carried out to obtain more accurate protection data.
Establishing a temperature and current covariance formula:
Wherein, Is the temperature, current covariance,/>Is the measured data of temperature,/>Is the measured data of current,/>Is the average value of temperature data,/>N is the data amount, which is the average of the current data.
Establishing a covariance matrix:
State space equation:
Wherein, Is the second derivative of the state variable,/>The first derivative of the state variable is represented by m, B and k.
Further two states, i.e., calculated data, can be derived from the initial state variables of x 1 and x 2 by formulas.
There are multiple states and multiple coefficients, and a matrix can be used for optimization.
By measuring itRepresenting temperature,/>Representative current:
two formulas are available, X (t) represents the calculated data and Z (t) represents the measured data:
Wherein, State matrix,/>Control matrix,/>Is an identity matrix.
The set data is continuous, but the actual read data is discontinuous, and the read data does not need so much data, so that the read data needs to be discretized, and as errors exist in calculation and measurement in the whole system process, the error is regarded as noise, the process noise W k-1 is in the calculation process, the measurement noise V k is in the measurement, two very important formulas can be obtained:
Assuming that the noise satisfies the normal distribution:
Wherein, For process noise,/>To measure noise.
Q is expressed as a covariance matrix:
taking process noise as an example, then
The Kalman filtering is then performed, as shown in FIG. 5, with the prediction formula (formula 1):
Prior error covariance (equation 2):
correction of kalman gain (formula 3):
posterior estimation (equation 4):
update error covariance (equation 5):
And removing noise and interference in the data by the Kalman filtering to obtain proper target data. In other embodiments, the data may be processed by other filtering methods, and the present disclosure uses the kalman filtering as an example, which is not limited by the present application.
In the embodiment, the protection time is set according to the AI learning model for the current, the temperature and the number of times of stalling of the motor, the most suitable weight distribution is found, the adaptability to the actual working condition is better, the motor can be timely protected under the condition that the working capacity of the motor is fully exerted, and the running efficiency and the safety of the motor are improved.
The application also discloses a control device of the electric tool, as shown in fig. 6, comprising: a detection unit for detecting a characteristic parameter of the motor; a determining unit for determining a target protection time according to the motor characteristic parameter; and a processing unit which is communicated with the determining unit and adopts the motor control method.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described apparatus may refer to the corresponding process in the foregoing method embodiment, which has the same technical effects as those of the foregoing method embodiment, and will not be described herein again.
The application also discloses an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the motor control method. The electronic equipment is a server, a desktop computer, a tablet personal computer, a cloud server, a mobile terminal and other computing equipment. The memory is a hard disk or a memory in the electronic equipment, or a USB flash disk, a plug-in hard disk or a smart memory card (SMART MEDIA CARD, SMC) plugged out of the electronic equipment, a Secure Digital (SD) card and a flash memory card (FLASHCARD). The Processor may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), off-the-shelf Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like.
The application also discloses a computer readable medium in which a computer program is stored which, when being executed by a processor, implements the above motor control method. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (tools), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention for illustrating the technical solution of the present invention, but not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the foregoing examples, it will be understood by those skilled in the art that the present invention is not limited thereto: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A motor control method applied to an electric tool, the control method comprising:
Detecting characteristic parameters of the motor, wherein the characteristic parameters comprise at least two of current, temperature and the number of times of locked rotation of the motor;
when the working state of the motor enters an abnormal state, determining target protection time according to the characteristic parameters of the motor at the moment, wherein the working state comprises a normal state and an abnormal state;
And when the time for the motor to enter an abnormal state reaches the target protection time, controlling the motor to stop.
2. The motor control method according to claim 1, characterized in that a correspondence relationship between a protection time and a motor characteristic parameter is established and stored in advance before the target protection time of the motor is determined from the characteristic parameter.
3. The motor control method according to claim 2, characterized in that, before the corresponding relation between the protection time and the motor characteristic parameter is pre-established and stored, the operation state of the motor under the single conditions of the preset current, the preset temperature and the preset number of times of occurrence of the stall is detected, and the preset protection time of the motor under the single conditions of the preset current, the preset temperature and the preset number of times of occurrence of the stall is determined according to the operation state of the motor.
4. The motor control method according to claim 3, wherein the correspondence relationship includes a two-dimensional map of protection time and current, temperature, the two-dimensional map being obtained from the preset current, the preset temperature and a preset protection time corresponding thereto.
5. The motor control method according to claim 3, wherein the correspondence relation includes setting a protection time according to a current, a temperature, and a number of times of occurrence of stall according to a fixed weight, and the protection time is obtained by setting the preset current, the preset temperature, the number of times of occurrence of stall, and a corresponding preset protection time according to a fixed weight.
6. The motor control method according to claim 3, wherein the correspondence relation includes setting a protection time according to an AI learning model according to a current, a temperature, and a number of times of occurrence of stall, and the protection time is obtained by the preset current, the preset temperature, the number of times of occurrence of stall, and a corresponding preset protection time according to the AI learning model.
7. The motor control method according to claim 6, wherein the AI learning model performs data fusion on the preset protection time according to a preset current, a preset temperature, a preset number of times of occurrence of locked-rotor and a corresponding preset protection time, to obtain the protection time.
8. A control device for a motor of an electric tool, the control device comprising:
a detection unit for detecting a characteristic parameter of the motor;
A determining unit for determining a working state and a target protection time according to the motor characteristic parameter;
a processing unit in communication with the determining unit, employing the motor control method according to any one of claims 1-7.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the motor control method according to any one of claims 1-7 when executing the computer program.
10. A computer-readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the motor control method of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410446842.3A CN118040611B (en) | 2024-04-15 | 2024-04-15 | Motor control method, motor control device, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410446842.3A CN118040611B (en) | 2024-04-15 | 2024-04-15 | Motor control method, motor control device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113489425A (en) * | 2021-06-04 | 2021-10-08 | 东风汽车集团股份有限公司 | Driving motor locked-rotor control method, system and storage medium |
| CN116248011A (en) * | 2022-12-30 | 2023-06-09 | 东风商用车有限公司 | Commercial vehicle window locked-rotor self-adaptive control method, device, equipment and storage medium |
| CN116316437A (en) * | 2023-03-21 | 2023-06-23 | 江苏东成工具科技有限公司 | Protection method, protection device and computer readable medium for motor locked rotor |
| CN116995616A (en) * | 2023-06-29 | 2023-11-03 | 江苏东成工具科技有限公司 | Motor protection method, protection device and computer readable medium |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113489425A (en) * | 2021-06-04 | 2021-10-08 | 东风汽车集团股份有限公司 | Driving motor locked-rotor control method, system and storage medium |
| CN116248011A (en) * | 2022-12-30 | 2023-06-09 | 东风商用车有限公司 | Commercial vehicle window locked-rotor self-adaptive control method, device, equipment and storage medium |
| CN116316437A (en) * | 2023-03-21 | 2023-06-23 | 江苏东成工具科技有限公司 | Protection method, protection device and computer readable medium for motor locked rotor |
| CN116995616A (en) * | 2023-06-29 | 2023-11-03 | 江苏东成工具科技有限公司 | Motor protection method, protection device and computer readable medium |
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