WO2018076352A1 - 控制马达振动的方法及装置、电子设备 - Google Patents

控制马达振动的方法及装置、电子设备 Download PDF

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Publication number
WO2018076352A1
WO2018076352A1 PCT/CN2016/104057 CN2016104057W WO2018076352A1 WO 2018076352 A1 WO2018076352 A1 WO 2018076352A1 CN 2016104057 W CN2016104057 W CN 2016104057W WO 2018076352 A1 WO2018076352 A1 WO 2018076352A1
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WIPO (PCT)
Prior art keywords
parameter
driving
motor
vibration
determining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/104057
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English (en)
French (fr)
Inventor
解霏
段伟亮
刘欢欢
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN201680001337.1A priority Critical patent/CN106461727B/zh
Priority to PCT/CN2016/104057 priority patent/WO2018076352A1/zh
Priority to EP17199190.4A priority patent/EP3316473B1/en
Priority to US15/799,201 priority patent/US20180123494A1/en
Publication of WO2018076352A1 publication Critical patent/WO2018076352A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/032Reciprocating, oscillating or vibrating motors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34Testing dynamo-electric machines
    • G01R31/343Testing dynamo-electric machines in operation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725Cordless telephones
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00Arrangements for controlling dynamo-electric motors rotating step by step

Definitions

  • the present disclosure relates to the field of electronic technologies, and in particular, to a method and device for controlling vibration of a motor, and an electronic device.
  • the motor used in the mobile phone needs to be driven by the driving voltage. Since the driving circuit and the motor are connected by wires, the existence of the resistance on the wire causes the voltage applied to the motor to be lower than the voltage outputted by the driving circuit.
  • the motor of the ring structure because the drive circuit does not receive the feedback amount about the motor vibration, will cause the motor to not be in an optimal vibration state when vibrating.
  • embodiments of the present disclosure provide a method and apparatus for controlling vibration of a motor, and an electronic device capable of controlling an optimal vibration state of the motor when vibrating.
  • a method of controlling vibration of a motor comprising:
  • the drive circuit is controlled to drive the motor with the first drive parameter.
  • the determining, according to the second driving parameter, the first driving parameter for adjusting the driving circuit may include:
  • the method may further include:
  • the vibration information generated by the collecting motor during the vibration process includes:
  • the determining, according to the second driving parameter, the first driving parameter for adjusting the driving circuit may include:
  • the determining, according to the second driving parameter and the difference, the first driving parameter for adjusting the driving circuit may include:
  • the step of controlling the drive circuit to drive the motor with the first drive parameter is performed when the absolute value is less than the predetermined threshold.
  • the method may further include:
  • the type of the motor is determined by driving information about the drive circuit recorded from the electronic device.
  • an apparatus for controlling vibration of a motor comprising:
  • An acceleration acquisition module configured to collect, by a gravity sensor, a gravity acceleration generated by the motor during the vibration process
  • a first determining module configured to determine, according to the gravity acceleration collected by the acceleration collecting module, a first driving parameter that the driving circuit needs to drive the motor, the type of the first driving parameter being determined by a type of the motor;
  • a first control module configured to control the drive circuit to drive the motor with the first drive parameter determined by the first determination module.
  • the first determining module may include:
  • a first determining submodule configured to determine a distribution characteristic parameter of the gravitational acceleration during the vibration process
  • a search submodule configured to search, from the preset reference information, a second driving parameter corresponding to the distributed feature parameter determined by the first determining submodule, where the preset reference information is used to record the gravity acceleration and The correspondence between the drive parameters used when the motor is operating in a steady state;
  • a second determining submodule configured to determine a first driving parameter for adjusting the driving circuit according to the second driving parameter found by the searching submodule.
  • the second determining submodule is specifically configured to:
  • the apparatus may further include:
  • a second determining module configured to determine a preset range of driving parameters used by the motor before the acceleration collecting module collects a gravity acceleration generated by the motor during the vibration process by using the gravity sensor;
  • a second control module configured to control the driving circuit to sequentially output driving parameters that are different by a preset interval within the preset range determined by the second determining module, and drive the driving parameter by using the phase difference preset interval Motor
  • the acceleration collection module is configured to:
  • the second control module is controlled by the gravity sensor to control the gravitational acceleration of the motor to generate vibration under the driving parameter of the phase difference preset interval.
  • the second determining submodule is specifically configured to:
  • the second determining submodule is specifically configured to:
  • the first control module When the absolute value is less than the preset threshold, the first control module performs the step of controlling the driving circuit to drive the motor with the first driving parameter.
  • an electronic device including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • Gravity sensor is used to collect the acceleration of gravity generated by the motor during the vibration process
  • the drive circuit is controlled to drive the motor with the first drive parameter.
  • the driving circuit Determining, according to the vibration information, that the driving circuit needs to drive the first driving parameter of the motor, and controlling the driving circuit to drive the motor with the first driving parameter, thereby realizing the replacement of the electric signal in the related art by the vibration information having the mechanical property to compensate for the driving circuit and the motor
  • the difference between the driving parameters adopted by the motor caused by the line resistance and the driving parameters provided by the driving circuit enables the driving circuit with the open-loop structure to control the motor to be in an optimal vibration state; compared with the related art
  • the closed-loop structure of the drive circuit simplifies the circuit structure of the drive circuit while still ensuring a stable vibration effect of the motor.
  • FIG. 1A is a schematic flow chart of a method of controlling motor vibration, according to an exemplary embodiment.
  • FIG. 1B is a structural diagram of a circuit for controlling vibration of a motor according to the exemplary embodiment shown in FIG. 1A.
  • FIG. 2 is a flow chart showing a method of controlling vibration of a motor according to an exemplary embodiment.
  • FIG. 3A is a schematic flow chart of a method of controlling vibration of a motor, according to an exemplary embodiment.
  • Figure 3B is a schematic illustration of the relationship between the gravitational acceleration and the drive parameters of the drive circuit in accordance with the embodiment of Figure 3A.
  • Figure 3C is a schematic illustration of the distribution of gravitational acceleration of a motor in accordance with the embodiment of Figure 3A during vibration.
  • 4A is a schematic flow chart of a method of controlling motor vibration, according to an exemplary embodiment 3.
  • FIG. 4B is a schematic view showing the distribution of gravitational acceleration during vibration of the motor according to the embodiment shown in FIG. 4A.
  • FIG. 5 is a schematic structural diagram of an apparatus for controlling vibration of a motor according to an exemplary embodiment.
  • FIG. 6 is a schematic structural diagram of another apparatus for controlling vibration of a motor according to an exemplary embodiment.
  • FIG. 7 is a schematic structural view of still another apparatus for controlling vibration of a motor according to an exemplary embodiment.
  • FIG. 8 is a schematic structural view of an apparatus suitable for controlling vibration of a motor, according to an exemplary embodiment.
  • FIG. 1A is a schematic flow chart showing a method of controlling vibration of a motor according to an exemplary embodiment
  • FIG. 1B is a structural diagram of a circuit for controlling vibration of a motor according to the exemplary embodiment shown in FIG. 1A;
  • the application is applied to an electronic device such as a smartphone or a tablet computer that can vibrate by a motor.
  • the method for controlling the vibration of the motor includes the following steps 101-103:
  • step 101 vibration information generated by the motor during the vibration process is acquired.
  • the vibration information of the motor during the vibration process can be collected by the gravity sensor, and the vibration information is the gravity acceleration.
  • the motor drives the electronic device to vibrate, the trend of the vibration information collected by the motor is consistent with the trend of the vibration of the motor. For example, the intensity of the motor vibration reaches a maximum value, the amplitude of the gravity acceleration also reaches a maximum value, and the motor vibrates.
  • the direction is the same as the direction of gravity acceleration.
  • the first driving parameter of the driving circuit of the motor is determined according to the vibration information and the preset reference information corresponding to the type of the motor, wherein the preset reference information is used to record the characteristic parameter of the motor when the motor is in the steady state.
  • the preset reference information is used to record the characteristic parameter of the motor when the motor is in the steady state.
  • the driving parameters of the corresponding driving circuit are different for different types of motors.
  • the driving parameter of the driving circuit is the driving voltage
  • the type of the motor is an AC motor.
  • the driving parameters of the driving circuit include a driving voltage and a frequency corresponding to the driving voltage.
  • the preset reference information may record a correspondence between a characteristic parameter of the motor operating in a steady state and a driving parameter used by the driving circuit based on a list or a graph, and the corresponding relationship may be tested. Get it.
  • step 103 the control drive circuit drives the motor with the first drive parameter.
  • the vibration information includes gravity acceleration as an example.
  • the gravity sensor 13 collects the gravity acceleration of the motor 12 during the vibration process.
  • the device 10 recognizes the gravitational acceleration as a characteristic parameter in the present disclosure, and determines how much driving parameter the driving circuit 11 needs to drive the motor 12 according to the gravitational acceleration, so that the motor 12 operates in a stable state.
  • the characteristic parameter can be either the magnitude of the gravitational acceleration or the frequency of the gravitational acceleration.
  • the first drive parameter of the drive circuit is required to be driven by the drive circuit according to the vibration information
  • the control drive circuit drives the motor with the first drive parameter, thereby realizing the replacement of the electrical signal in the related art by the vibration information having the mechanical property. Due to the difference between the driving parameters adopted by the motor and the driving parameters provided by the driving circuit caused by the line resistance between the driving circuit and the motor, the driving circuit having the open-loop structure can control the motor to be in an optimal vibration state; Compared with the driving circuit of the closed-loop structure in the related art, the circuit structure of the driving circuit is simplified, and the stable vibration effect of the motor can be ensured.
  • determining the first driving parameter of the driving circuit of the motor according to the vibration information and the preset reference information corresponding to the type of the motor may include:
  • a first driving parameter for adjusting the driving circuit is determined according to the second driving parameter.
  • determining the first driving parameter for adjusting the driving circuit according to the second driving parameter may include:
  • the driving parameter corresponding to the maximum value is determined as the first driving parameter for adjusting the driving circuit.
  • the method may further include:
  • the control driving circuit sequentially outputs the driving parameters of the preset interval in the preset range, and drives the motor by the driving parameters that are separated by the preset interval;
  • Collect vibration information generated by the motor during vibration including:
  • determining the first driving parameter for adjusting the driving circuit according to the second driving parameter may include:
  • a first drive parameter for adjusting the drive circuit is determined based on the second drive parameter and the difference.
  • determining the first driving parameter for adjusting the driving circuit based on the second driving parameter and the difference value may include:
  • the step of controlling the drive circuit to drive the motor with the first drive parameter is performed.
  • the method further includes:
  • the type of the motor is determined by the drive information about the drive circuit recorded from the electronic device.
  • the above method provided by the embodiment of the present disclosure can enable the driving circuit with the open-loop structure to control the motor to be in an optimal vibration state, simplify the circuit structure of the driving circuit, and still ensure a stable vibration effect of the motor.
  • FIG. 2 is a schematic flow chart of a method for controlling vibration of a motor according to an exemplary embodiment of the present invention.
  • This embodiment uses the above method provided by the embodiment of the present disclosure to exemplify an example in which the type of the motor is an AC motor, such as As shown in Figure 2, the following steps are included:
  • step 201 vibration information generated by the motor during the vibration process is acquired.
  • step 201 For a description of the step 201, reference may be made to the description of the embodiment shown in FIG. 1A, which is not described in detail herein.
  • step 202 the characteristic parameters of the motor during the vibration are determined based on the vibration information.
  • the characteristic parameter corresponds to the type of the motor.
  • the characteristic parameter may be the magnitude of the gravitational acceleration; when the type of the motor is an AC motor, the characteristic parameter may be a gravitational acceleration.
  • Frequency where the frequency of the vibration information is the same as the vibration frequency of the motor.
  • one of the driving frequency and the driving voltage may be fixed first, and then another parameter may be adjusted according to the vibration information.
  • a second driving parameter corresponding to the characteristic parameter in the vibration process is determined based on the preset reference information corresponding to the type of the motor, and the preset reference information is used to record the characteristic parameter and the driving circuit when the motor operates in the steady state. The correspondence between the drive parameters used.
  • the vibration information of each type of motor working in the steady state before the factory and the driving parameters of the driving circuit can be obtained by testing, and the vibration information in the steady state and the driving parameters of the driving circuit can be obtained.
  • Recorded in the preset reference information may be recorded by means of a list, or the preset reference information may be recorded by means of a relationship graph.
  • the driving parameter is the driving voltage
  • the vibration information is the gravity addition
  • the preset reference information is recorded in a list as an example, as shown in Table 1.
  • the motor uses different driving voltages and the vibration is strong.
  • the degrees are also different, so that the magnitude of the gravitational acceleration acquired by the gravity sensor is also different, so the values in Table 1 above are merely illustrative and do not form a limitation on the present disclosure.
  • a first driving parameter for adjusting the driving circuit is determined according to the second driving parameter.
  • step 205 the control drive circuit drives the motor with the first drive parameter.
  • step 205 For a description of the step 205, reference may be made to the description of the embodiment shown in FIG. 1A, which is not described in detail herein.
  • the second driving parameter indicates the driving parameter used when the motor operates in the steady state
  • the corresponding parameter corresponding to the characteristic parameter in the vibration process is determined based on the preset reference information.
  • the second driving parameter determines the first driving parameter used by the driving circuit according to the second driving parameter, and can ensure that the driving circuit can combine the line resistance between the driving circuit and the motor when the driving motor vibrates to ensure that the motor works in an optimal state.
  • FIG. 3A is a schematic flow chart of a method for controlling vibration of a motor according to an exemplary embodiment
  • FIG. 3B is a schematic diagram showing a relationship between a gravity acceleration and a driving parameter of a driving circuit according to the embodiment shown in FIG. 3A
  • the frequency is taken as an example and is exemplarily illustrated in conjunction with FIG. 1B.
  • FIG. 3A the following steps are included:
  • step 301 a predetermined range of drive parameters employed by the motor is determined.
  • the frequency of the maximum vibration of each AC motor (ie, the F0 point) is different, and the maximum of each AC motor can be obtained by the AC motor before the factory test.
  • the range of the frequency (F0) of the vibration further adjusts the frequency of the drive voltage that the drive circuit outputs to the motor by the vibration information during the vibration of the motor.
  • step 302 the control driving circuit sequentially outputs the driving parameters of the preset interval in the preset range, and drives the motor by the driving parameters that are separated by the preset interval.
  • the processor 13 can start from 230 Hz, and sequentially use 232, 234, 236, etc. up to a frequency of 250 Hz to drive the AC motor.
  • step 303 the vibration information generated by the motor under the driving parameters of the preset interval is acquired.
  • the magnitude of the gravity acceleration varies with the curve shown in FIG. 3B.
  • step 304 a characteristic parameter of the gravitational acceleration during the vibration is determined.
  • the characteristic parameter is the vibration frequency of the gravitational acceleration.
  • step 305 based on the preset reference information corresponding to the type of the motor, the second driving parameter corresponding to the characteristic parameter of the motor during the vibration process is determined, and the preset reference information is used to record the characteristic parameter of the motor when the motor is in the steady state.
  • the preset reference information is used to record the characteristic parameter of the motor when the motor is in the steady state.
  • the preset reference information may be represented by a relationship graph shown in FIG. 3B, or may be obtained by sampling the relationship graph shown in FIG. 3B to obtain a discrete characteristic parameter and a driving parameter. Correspondence relationship.
  • step 306 it is determined whether the feature parameter corresponding to the second driving parameter reaches a maximum value of the feature parameter recorded in the preset reference information, and the feature parameter corresponding to the second driving parameter reaches the feature recorded in the preset reference information.
  • step 307 is performed.
  • the feature parameter corresponding to the second driving parameter does not reach the maximum value of the feature parameter recorded in the preset reference information, the above step 302 is continued.
  • step 307 when the feature parameter corresponding to the second driving parameter reaches the maximum value of the feature parameter recorded in the preset reference information, the driving parameter corresponding to the maximum value is determined as the first for adjusting the driving circuit. Drive parameters.
  • step 308 the control drive circuit drives the motor with the first drive parameter.
  • step 308 For a description of the step 308, reference may be made to the description of the embodiment shown in FIG. 1A, which is not described in detail herein.
  • the scheme of the present embodiment is exemplarily described below with reference to FIG. 3C.
  • the motor 12 before the first time point corresponding to the broken line 31, the motor 12 is in an unvibrated state, and the gravity acceleration collected by the gravity sensor 13 is substantially zero.
  • the driving circuit 11 drives the motor to start vibrating.
  • the amplitude of the gravitational acceleration outputted by the driving circuit 11 continues to increase, and the period changes from large to small. Accordingly, the frequency changes from small to large, and the processor 10 passes the present.
  • the control driving circuit 11 After obtaining the first driving parameter (F0 in this embodiment), the control driving circuit 11 outputs the driving voltage at the frequency of F0.
  • the amplitude and period of the gravity acceleration tend to be stable, indicating The vibration of the motor 12 is in a stable state.
  • the vibration signal of the mechanical property is used instead of the electric signal, and the driving circuit of the open-loop structure is used to complete the better control of the AC motor, because the acquisition of the motor in the vibration process can be carried out through the components inherent in the electronic device.
  • the generated vibration information therefore, the present disclosure can achieve a stable vibration state of the AC motor without increasing the closed-loop structure, which is lower in cost than the drive circuit using the closed-loop structure.
  • FIG. 4A is a schematic flow chart of a method for controlling vibration of a motor according to an exemplary embodiment 3
  • FIG. 4B is a schematic diagram showing a distribution of gravity acceleration during vibration of a motor according to the embodiment shown in FIG. 4A;
  • the above method provided by the disclosed embodiment is exemplified by taking the driving voltage of the motor as the DC motor and the driving parameter as the output of the driving circuit as an example and as shown in FIG. 1B.
  • the following steps are included:
  • step 401 vibration information generated by the motor during the vibration process is acquired.
  • step 401 For a description of the step 401, reference may be made to the description of the embodiment shown in FIG. 1A, which is not described in detail herein.
  • step 402 characteristic parameters of the vibration information during the vibration process are determined.
  • step 403 a second driving parameter corresponding to the feature parameter is searched from the preset reference information, and the preset reference information is used to record a correspondence between a characteristic parameter when the motor operates in a stable state and a driving parameter used by the driving circuit. relationship.
  • a first driving parameter for adjusting the driving circuit is determined according to a difference between the second driving parameter and the preset third driving parameter, wherein the third driving parameter is a driving of the motor in a steady state. parameter.
  • step 405 a first driving parameter for adjusting the driving circuit is determined based on the second driving parameter and the difference value.
  • step 406 the control drive circuit drives the motor with the first drive parameter.
  • the drive voltage employed is 3 volts (this voltage can be considered as the third drive parameter in this embodiment).
  • the drive circuit 11 can provide 3 volts to the motor 12. Since the driving voltage is electrically connected between the driving circuit 11 and the motor 12 through the wires, there is a wire inherent resistance (which may be referred to as a line resistance) between the driving circuit 11 and the motor 12, so that when the driving circuit 11 supplies 3 volts to the motor When the driving voltage is applied, the driving voltage applied to the motor 11 is reduced to 2.7 volts due to the presence of the line resistance.
  • the driving voltage corresponding to the magnitude of the gravitational acceleration is found from the preset reference information, the driving voltage is 3.5 volts (visible The second driving parameter in the disclosure), the difference between the second driving parameter and the third driving parameter is 0.5 volts, and if the preset threshold is 0.1 volt, since 0.5 volt is greater than 0.1 volt, the driving circuit 11 is provided to the motor 12.
  • the driving voltage is not yet able to reach the voltage used when the motor 12 is operating in a steady state. Therefore, it is necessary to adjust the driving voltage of the driving circuit 11 by 3.0 volts based on 0.5 volts. Specifically, 0.5 volts can be applied as an offset.
  • the driving voltage outputted by the driving circuit 11 is 3.0 volts, that is, the driving voltage supplied from the driving circuit 11 to the motor 12 is 3.5 volts.
  • the solution of the embodiment is exemplarily described below with reference to FIG. 4B.
  • the motor 12 is in an unvibrated state, and the gravity sensor The gravity acceleration acquired by 13 is basically zero.
  • the driving circuit 11 drives the motor 12 to start vibrating.
  • the amplitude of the gravitational acceleration outputted by the driving circuit 11 continues to increase, and the processor 10 controls the driving after obtaining the second driving parameter through the embodiment.
  • the circuit 11 adjusts the output voltage of the driving circuit by the difference between the third driving parameter and the second driving parameter and the second driving parameter, that is, the first driving parameter in the present disclosure, at a second time point corresponding to the broken line 42, gravity
  • the magnitude of the acceleration tends to be stable, indicating that the motor 12 is operating in a steady state.
  • the driving circuit of the open-loop structure completes the better control of the DC motor, and since the vibration information can be collected by the components inherent in the electronic device, It is disclosed that the vibration of the DC motor can be stabilized without increasing the closed-loop structure, and the cost is lower than that of the drive circuit using the closed-loop structure.
  • FIG. 5 is a schematic structural diagram of an apparatus for controlling vibration of a motor according to an exemplary embodiment. As shown in FIG. 5, the apparatus for controlling vibration of a motor includes:
  • the vibration information collecting module 51 is configured to collect vibration information generated by the motor during the vibration process
  • the first determining module 52 is configured to determine a first driving parameter of the driving circuit of the motor according to the vibration information collected by the vibration information collecting module 51 and the preset reference information corresponding to the type of the motor, wherein the preset reference information is used for Recording the correspondence between the characteristic parameters of the motor operating in a steady state and the driving parameters used by the driving circuit;
  • the first control module 53 is configured to control the drive circuit to drive the motor with the first drive parameter determined by the first determination module 52.
  • FIG. 6 is a schematic structural diagram of another apparatus for controlling vibration of a motor according to an exemplary embodiment.
  • the first determining module 52 may include:
  • a first determining sub-module 521 configured to determine a characteristic parameter of the motor during the vibration according to the vibration information
  • the second determining sub-module 522 is configured to determine, according to the preset reference information corresponding to the type of the motor, the second driver corresponding to the feature parameter in the vibration process determined by the first determining sub-module 521 Dynamic parameter
  • the third determining sub-module 523 is configured to determine a first driving parameter for adjusting the driving circuit according to the second driving parameter determined by the second determining sub-module check 522.
  • FIG. 7 is a schematic structural diagram of another apparatus for controlling vibration of a motor according to an exemplary embodiment. As shown in FIG. 7, on the basis of the embodiment shown in FIG. 6 above, in an embodiment, a third determination is performed.
  • the submodule 523 is specifically configured to:
  • the driving parameter corresponding to the maximum value is determined as the first driving parameter for adjusting the driving circuit.
  • the apparatus may further include:
  • the second determining module 54 is configured to determine a preset range of driving parameters used by the motor before the vibration information collecting module 51 collects the vibration information generated by the motor during the vibration process;
  • the second control module 55 is configured to control the driving circuit to sequentially output the driving parameters of the preset difference interval within the preset range determined by the second determining module 54, and drive the motor by the driving parameters that are separated by the preset interval;
  • the vibration information collection module 51 is configured to:
  • the acquisition second control module 55 controls the vibration information generated by the motor driven by the drive parameters that are separated by a preset interval.
  • the third determining submodule 523 is specifically configured to:
  • a first drive parameter for adjusting the drive circuit is determined based on the second drive parameter and the difference.
  • the third determining submodule 523 is specifically configured to:
  • the first control module 53 When the absolute value is less than the preset threshold, the first control module 53 performs a step of controlling the drive circuit to drive the motor with the first drive parameter.
  • the apparatus may further include:
  • the third determining module 56 is configured to determine the type of the motor by driving information about the driving circuit recorded from the electronic device, and the vibration information collecting module 51 performs acquisition of vibration information corresponding to the type of the motor.
  • FIG. 8 is a schematic structural diagram of an apparatus suitable for controlling vibration of a motor according to an exemplary embodiment.
  • the apparatus 800 may be a smart device, a tablet computer, or the like having vibration function.
  • device 800 can include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, And a communication component 816.
  • Processing component 802 typically controls the overall operation of device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 802 can include one or more processors 820 to execute instructions to perform all or part of the steps of the above described methods.
  • processing component 802 can include one or more modules to facilitate interaction between component 802 and other components.
  • processing component 802 can include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
  • Memory 804 is configured to store various types of data to support operation at device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phone book data, messages, pictures, videos, and the like. Memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable In addition to Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk or Optical Disk.
  • Power component 806 provides power to various components of device 800.
  • Power component 806 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 800.
  • the multimedia component 808 includes a screen between the device 800 and the user that provides an output interface.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
  • the multimedia component 808 includes a front camera and/or a rear camera. When the device 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 810 is configured to output and/or input an audio signal.
  • the audio component 810 includes a microphone (MIC) that is configured to receive an external audio signal when the device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 804 or transmitted via communication component 816.
  • the audio component 810 also includes a speaker for outputting an audio signal.
  • the I/O interface 812 provides an interface between the processing component 802 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
  • Sensor assembly 814 includes one or more sensors for providing device 800 with a status assessment of various aspects.
  • sensor assembly 814 can detect an open/closed state of device 800, a relative positioning of components, such as the display and keypad of device 800, and sensor component 814 can also detect a change in position of one component of device 800 or device 800.
  • Sensor assembly 814 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 814 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 816 is configured to facilitate wired or wireless communication between device 800 and other devices.
  • the device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short range communication.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • device 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the above method of controlling motor vibration, the method comprising:
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation for performing the above method of controlling motor vibration, the method comprising:
  • non-transitory computer readable storage medium comprising instructions, such as a memory 804 comprising instructions executable by processor 820 of apparatus 800 to perform the above method.
  • the non-transitory computer readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.
  • Processor 820 is configured to:

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

一种控制马达振动的方法及装置、电子设备,所述方法包括:通过重力传感器采集马达在振动过程中产生的重力加速度(101);根据重力加速度确定驱动电路需要驱动所述马达的第一驱动参数(102),控制驱动电路以第一驱动参数驱动所述马达(103),第一驱动参数的类型由马达的类型确定。该控制马达振动的方法及装置、电子设备使具有开环结构的驱动电路可以控制马达处于最优的振动状态,简化驱动电路的电路结构的同时,仍能确保马达具有稳定的振动效果。

Description

控制马达振动的方法及装置、电子设备 技术领域
本公开涉及电子技术领域,尤其涉及一种控制马达振动的方法及装置、电子设备。
背景技术
手机中使用的马达需要在驱动电压的驱动下实现振动,由于驱动电路与马达之间通过导线连接,导线上电阻的存在,导致施加到马达的电压通常会低于驱动电路输出的电压,对于开环结构的马达,由于驱动电路不会接收到关于马达振动的反馈量,因此会导致马达在振动时不会处于最优的振动状态。
发明内容
为克服相关技术中存在的问题,本公开实施例提供一种控制马达振动的方法及装置、电子设备,能够控制马达在振动时能够处于最佳的振动状态。
根据本公开实施例的第一方面,提供一种控制马达振动的方法,包括:
采集马达在振动过程中产生的振动信息;
根据所述振动信息、与所述马达的类型对应的预设参考信息确定所述马达的驱动电路的第一驱动参数,所述预设参考信息用于记录所述马达工作在稳定状态时的特征参数与所述驱动电路所采用的驱动参数之间的对应关系;
控制所述驱动电路以所述第一驱动参数驱动所述马达。
在一实施例中,所述根据所述振动信息、与所述马达的类型对应的 预设参考信息确定所述马达的驱动电路的第一驱动参数,可包括:
根据所述振动信息确定所述马达在振动过程中的特征参数;
基于与所述马达的类型对应的预设参考信息,确定所述振动过程中的特征参数对应的第二驱动参数;
根据所述第二驱动参数确定用于调整驱动电路的第一驱动参数。
在一实施例中,所述根据所述第二驱动参数确定用于调整驱动电路的第一驱动参数,可包括:
确定所述第二驱动参数对应的特征参数是否达到所述预设参考信息中所记录的特征参数的极大值;
当所述第二驱动参数对应的特征参数达到所述预设参考信息中所记录的特征参数的极大值时,将与所述极大值对应的驱动参数确定为用于调整驱动电路的第一驱动参数。
在一实施例中,在所述采集马达在振动过程中产生的特征参数的步骤之前,所述方法还可包括:
确定所述马达所采用的驱动参数的预设范围;
控制所述驱动电路在所述预设范围内依次输出相差预设间隔的驱动参数,通过所述相差预设间隔的驱动参数驱动所述马达;
所述采集马达在振动过程中产生的振动信息,包括:
采集所述马达在所述相差预设间隔的驱动参数的驱动下产生的振动信息。
在一实施例中,所述根据所述第二驱动参数确定用于调整驱动电路的第一驱动参数,可包括:
根据所述第二驱动参数与预设的第三驱动参数之间的差值,确定用于调整驱动电路的第一驱动参数,其中,所述第三驱动参数为所述马达工作在稳定状态的驱动参数;
基于所述第二驱动参数和所述差值确定用于调整所述驱动电路的第一驱动参数。
在一实施例中,所述基于所述第二驱动参数和所述差值确定用于调整所述驱动电路的第一驱动参数,可包括:
确定所述差值的绝对值是否大于或者等于预设阈值;
当所述绝对值大于或者等于所述预设阈值时,根据所述差值调整所述第二驱动参数,直至所述第二驱动参数与所述第三驱动参数之间的差值的绝对值小于所述预设阈值;
当所述绝对值小于所述预设阈值时,执行所述控制所述驱动电路以所述第一驱动参数驱动所述马达的步骤。
在一实施例中,所述方法还可包括:
通过从电子设备记录的关于所述驱动电路的驱动信息,确定所述马达的类型。
根据本公开实施例的第二方面,提供一种控制马达振动的装置,包括:
加速度采集模块,被配置为通过重力传感器采集马达在振动过程中产生的重力加速度;
第一确定模块,被配置为根据所述加速度采集模块采集的所述重力加速度确定驱动电路需要驱动所述马达的第一驱动参数,所述第一驱动参数的类型由所述马达的类型确定;
第一控制模块,被配置为控制所述驱动电路以所述第一确定模块确定的所述第一驱动参数驱动所述马达。
在一实施例中,所述第一确定模块可包括:
第一确定子模块,被配置为确定所述重力加速度在振动过程中的分布特征参数;
查找子模块,被配置为从预设参考信息中查找与所述第一确定子模块确定的所述分布特征参数对应的第二驱动参数,所述预设参考信息用于记录所述重力加速度与马达工作在稳定状态时所采用的驱动参数之间的对应关系;
第二确定子模块,被配置为根据所述查找子模块查找到的所述第二驱动参数确定用于调整驱动电路的第一驱动参数。
在一实施例中,所述第二确定子模块具体被配置为:
确定所述第二驱动参数对应的重力加速度是否达到所述预设参考信息中所记录的重力加速度的极大值;
当所述第二驱动参数对应的重力加速度达到所述预设参考信息中所记录的重力加速度的极大值时,将与所述极大值对应的驱动参数确定为用于调整驱动电路的第一驱动参数。
在一实施例中,所述装置还可包括:
第二确定模块,被配置为在所述加速度采集模块通过重力传感器采集马达在振动过程中产生的重力加速度的步骤之前,确定所述马达所采用的驱动参数的预设范围;
第二控制模块,被配置为控制所述驱动电路在所述第二确定模块确定的所述预设范围内依次输出相差预设间隔的驱动参数,通过所述相差预设间隔的驱动参数驱动所述马达;
所述加速度采集模块被配置为:
通过所述重力传感器采集所述第二控制模块控制所述马达在所述相差预设间隔的驱动参数的驱动下产生振动的重力加速度。
在一实施例中,所述第二确定子模块具体被配置为:
根据所述第二驱动参数与预设的第三驱动参数之间的差值,确定用于调整驱动电路的第一驱动参数,其中,所述第三驱动参数为所述马达工作在稳定状态的驱动参数;
基于所述第二驱动参数和所述差值确定用于调整所述驱动电路的第一驱动参数。
在一实施例中,所述第二确定子模块具体被配置为:
确定所述差值的绝对值是否大于或者等于预设阈值;
当所述绝对值大于或者等于所述预设阈值时,根据所述差值调整所 述第二驱动参数,直至所述第二驱动参数与所述第三驱动参数之间的差值的绝对值小于所述预设阈值;
当所述绝对值小于所述预设阈值时,所述第一控制模块执行所述控制所述驱动电路以所述第一驱动参数驱动所述马达的步骤。
根据本公开实施例的第三方面,提供一种电子设备,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为:
通过重力传感器采集马达在振动过程中产生的重力加速度;
根据所述重力加速度确定驱动电路需要驱动所述马达的第一驱动参数,所述第一驱动参数的类型由所述马达的类型确定;
控制所述驱动电路以所述第一驱动参数驱动所述马达。
本公开的实施例提供的技术方案可以包括以下有益效果:
根据振动信息确定驱动电路需要驱动马达的第一驱动参数,控制驱动电路以第一驱动参数驱动马达,实现了通过具有力学性质的振动信息代替相关技术中的电信号,来弥补由于驱动电路与马达之间的线抗导致的马达所采用的驱动参数与驱动电路提供的驱动参数之间存在的差异,使具有开环结构的驱动电路可以控制马达处于最优的振动状态;相比相关技术中的闭环结构的驱动电路,简化了驱动电路的电路结构的同时,仍能确保马达具有稳定的振动效果。
应当理解的是,以上的一般描述和后文的细节描述仅是示例性和解释性的,并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本发明的实施例,并与说明书一起用于解释本发明的原理。
图1A是是根据一示例性实施例示出的控制马达振动的方法的流程示意图。
图1B是根据图1A所示示例性实施例的控制马达振动的电路的结构图。
图2是根据一示例性实施例一示出的控制马达振动的方法的流程示意图。
图3A是根据一示例性实施例二示出的控制马达振动的方法的流程示意图。
图3B是根据图3A所示实施例的重力加速度与驱动电路的驱动参数之间的关系示意图。
图3C是根据图3A所示实施例的马达在振动过程中的重力加速度的分布示意图。
图4A是根据一示例性实施例三示出的控制马达振动的方法的流程示意图。
图4B是根据图4A所示实施例的马达在振动过程中的重力加速度的分布示意图。
图5是根据一示例性实施例示出的一种控制马达振动的装置的结构示意图。
图6是根据一示例性实施例示出的另一种控制马达振动的装置的结构示意图。
图7是根据一示例性实施例示出的再一种控制马达振动的装置的结构示意图。
图8是根据一示例性实施例示出的一种适用于控制马达振动的装置的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下 面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
图1A是是根据一示例性实施例示出的控制马达振动的方法的流程示意图,图1B是根据图1A所示示例性实施例的控制马达振动的电路的结构图;该控制马达振动的方法可以应用在例如智能手机、平板电脑等可以通过马达实现振动的电子设备上,如图1A所示,该控制马达振动的方法包括以下步骤101-103:
在步骤101中,采集马达在振动过程中产生的振动信息。
在一实施例中,可以通过重力传感器采集马达在振动过程中的振动信息,此时振动信息为重力加速度。当马达带动电子设备振动时,其采集的振动信息的变化趋势与马达的振动变化趋势相一致,例如,马达振动的强度达到最大值,重力加速度的幅值也会达到最大值,且马达振动的方向与重力加速度的方向也相同。
在步骤102中,根据振动信息、与马达的类型对应的预设参考信息,确定马达的驱动电路的第一驱动参数,其中,预设参考信息用于记录马达工作在稳定状态时的特征参数与驱动电路所采用的驱动参数之间的对应关系。
在一实施例中,不同类型的马达,对应的驱动电路输出的驱动参数也不同,例如,当马达的类型为直流马达时,驱动电路的驱动参数为驱动电压,当马达的类型为交流马达时,驱动电路的驱动参数包括驱动电压和该驱动电压对应的频率。
在一实施例中,预设参考信息可以基于列表或者曲线图的方式记录马达工作在稳定状态时的特征参数与驱动电路所采用的驱动参数之间的对应关系,该对应关系可以通过试验的方式获取到。
在步骤103中,控制驱动电路以第一驱动参数驱动马达。
如图1B所示,以振动信息包括重力加速度为例进行示例性说明,在处理器10控制驱动电路11驱动马达12振动的过程中,重力传感器13采集马达12在振动过程中的重力加速度,处理器10接收到重力传感器13采集的重力加速度后,识别出重力加速度作为本公开中的特征参数,根据重力加速度确定驱动电路11需要以多大的驱动参数驱动马达12,从而使马达12工作在稳定状态,其中,特征参数既可以为重力加速度的幅值,也可以为重力加速度的频率。
本实施例中,根据振动信息确定驱动电路需要驱动马达的第一驱动参数,控制驱动电路以第一驱动参数驱动马达,实现了通过具有力学性质的振动信息代替相关技术中的电信号,来弥补由于驱动电路与马达之间的线抗导致的马达所采用的驱动参数与驱动电路提供的驱动参数之间存在的差异,使具有开环结构的驱动电路可以控制马达处于最优的振动状态;相比相关技术中的闭环结构的驱动电路,简化了驱动电路的电路结构的同时,仍能确保马达具有稳定的振动效果。
在一实施例中,根据振动信息、与马达的类型对应的预设参考信息,确定马达的驱动电路的第一驱动参数,可包括:
根据振动信息确定马达在振动过程中的特征参数;
基于与马达的类型对应的预设参考信息确定振动过程中的特征参数对应的第二驱动参数;
根据第二驱动参数确定用于调整驱动电路的第一驱动参数。
在一实施例中,根据第二驱动参数确定用于调整驱动电路的第一驱动参数,可包括:
确定第二驱动参数对应的特征参数是否达到预设参考信息中所记录的特征参数的极大值;
当第二驱动参数对应的特征参数达到预设参考信息中所记录的特征参数的极大值时,将与极大值对应的驱动参数确定为用于调整驱动电路的第一驱动参数。
在一实施例中,在通过重力传感器采集马达在振动过程中产生的特征参数的步骤之前,方法还可包括:
确定马达所采用的驱动参数的预设范围;
控制驱动电路在预设范围内依次输出相差预设间隔的驱动参数,通过相差预设间隔的驱动参数驱动马达;
采集马达在振动过程中产生的振动信息,包括:
采集马达在相差预设间隔的驱动参数的驱动下产生的振动信息。
在一实施例中,根据第二驱动参数确定用于调整驱动电路的第一驱动参数,可包括:
根据第二驱动参数与预设的第三驱动参数之间的差值,确定用于调整驱动电路的第一驱动参数,其中,第三驱动参数为马达工作在稳定状态的驱动参数;
基于第二驱动参数和差值确定用于调整驱动电路的第一驱动参数。
在一实施例中,基于第二驱动参数和差值确定用于调整驱动电路的第一驱动参数,可包括:
确定差值的绝对值是否大于或者等于预设阈值;
当绝对值大于或者等于预设阈值时,根据差值调整第二驱动参数,直至第二驱动参数与第三驱动参数之间的差值的绝对值小于预设阈值;
当绝对值小于预设阈值时,执行控制驱动电路以第一驱动参数驱动马达的步骤。
在一实施例中,方法还包括:
通过从电子设备记录的关于驱动电路的驱动信息,确定马达的类型。
如何控制马达振动的,请参考后续实施例。
至此,本公开实施例提供的上述方法,可以使具有开环结构的驱动电路可以控制马达处于最优的振动状态,简化驱动电路的电路结构的同时,仍能确保马达具有稳定的振动效果。
下面以具体实施例来说明本公开实施例提供的技术方案。
图2是根据一示例性实施例一示出的控制马达振动的方法的流程示意图;本实施例利用本公开实施例提供的上述方法,以马达的类型为交流马达为例进行示例性说明,如图2所示,包括如下步骤:
在步骤201中,采集马达在振动过程中产生的振动信息。
步骤201的相关描述可以参见上述图1A所示实施例的描述,在此不再详述。
在步骤202中,根据振动信息确定马达在振动过程中的特征参数。
在一实施例中,特征参数与马达的类型相对应,当马达的类型为直流马达时,特征参数可以为重力加速度的幅值;当马达的类型为交流马达时,特征参数可以为重力加速度的频率,其中,振动信息的频率与马达的振动频率相同。本实施例中,在确定交流马达的驱动参数的过程中,可以先固定驱动频率和驱动电压中的一个参数,然后根据振动信息调整另一个参数。
在步骤203中,基于与马达的类型对应的预设参考信息,确定振动过程中的特征参数对应的第二驱动参数,预设参考信息用于记录马达工作在稳定状态时的特征参数与驱动电路所采用的驱动参数之间的对应关系。
在一实施例中,可以通过试验的方式得到每一个型号的马达在出厂前工作在稳定状态时的振动信息以及驱动电路的驱动参数,并将该稳定状态时的振动信息和驱动电路的驱动参数记录在预设参考信息中。在一实施例中,可以通过列表的方式来记录预设参考信息,也可以通过关系曲线图的方式来记录预设参考信息。以驱动参数为驱动电压、振动信息为重力加度素并且以列表的方式记录预设参考信息为例进行示例性说明,如表1所示。
表1
马达所采用的驱动电压(V) 2.7 2.9 3.0 3.3
重力加速度(N/kg) 0.27 0.29 0.3 0.33
本领域技术人员可以理解的是,马达采用不同的驱动电压,振动的强 度也不同,从而会导致重力传感器采集的重力加速度的幅值也不同,因此上述表1中的数值仅为示例性说明其并不能形成对本公开的限制。
在步骤204中,根据第二驱动参数确定用于调整驱动电路的第一驱动参数。
对于如何根据第二驱动参数确定用于调整驱动电路的第一驱动参数的,可以参见下述图3A或者图4A所示实施例的相关描述,在此先不详述。
在步骤205中,控制驱动电路以第一驱动参数驱动马达。
步骤205的相关描述可以参见上述图1A所示实施例的描述,在此不再详述。
本实施例在具有上述实施例的有益技术效果的基础上,由于第二驱动参数表示马达工作在稳定状态时所采用的驱动参数,因此基于预设参考信息确定振动过程中的特征参数对应的第二驱动参数,根据第二驱动参数确定驱动电路所采用的第一驱动参数,可以确保驱动电路在驱动马达振动时能够结合驱动电路与马达之间的线抗的因素,确保马达工作在最优状态。
图3A是根据一示例性实施例二示出的控制马达振动的方法的流程示意图,图3B是根据图3A所示实施例的重力加速度与驱动电路的驱动参数之间的关系示意图,图3C是根据图3A所示实施例的马达在振动过程中的重力加速度的分布示意图;本实施例利用本公开实施例提供的上述方法,以马达的类型为交流马达并且驱动参数为驱动电路输出的驱动电压的频率为例并结合图1B进行示例性说明,如图3A所示,包括如下步骤:
在步骤301中,确定马达所采用的驱动参数的预设范围。
在一实施例中,由于制造工艺的差异,每颗交流马达的最大振动的频点(即F0点)都不相同,可以通过交流马达在出厂前的测试来获取到每一颗交流马达的最大振动的频点(F0)的范围,进而在马达振动的过程中通过振动信息调整驱动电路向马达输出的驱动电压的频率。
在步骤302中,控制驱动电路在预设范围内依次输出相差预设间隔的驱动参数,通过相差预设间隔的驱动参数驱动马达。
例如,如图3B所示,在交流电压的幅值一定的情况下,例如,交流电压的幅值为1.2伏,马达12所采用的频率的预设范围为230赫兹-250赫兹之间,预设间隔为2赫兹,则处理器13可以从230赫兹开始,依次采用232、234、236等直至250赫兹的频点来驱动交流马达。
在步骤303中,采集马达在相差预设间隔的驱动参数的驱动下产生的振动信息。
与上述步骤302相对应,以振动信息包括重力加速度为例,重力加速度的幅值随着图3B所示的曲线在变化。
在步骤304中,确定重力加速度在振动过程中的特征参数。
在一实施例中,特征参数为重力加速度的振动频率。
在步骤305中,基于与马达的类型对应的预设参考信息,确定马达在振动过程中的特征参数对应的第二驱动参数,预设参考信息用于记录马达工作在稳定状态时的特征参数与驱动电路所采用的驱动参数之间的对应关系。
在一实施例中,预设参考信息可以以图3B所示的关系曲线图来表示,也可以通过对图3B所示的关系曲线图进行数据采样,得到离散的特征参数与驱动参数之间的对应关系。
在步骤306中,确定第二驱动参数对应的特征参数是否达到预设参考信息中所记录的特征参数的极大值,当第二驱动参数对应的特征参数达到预设参考信息中所记录的特征参数的极大值时,执行步骤307,当第二驱动参数对应的特征参数未达到预设参考信息中所记录的特征参数的极大值时,继续执行上述步骤302。
在步骤307中,当第二驱动参数对应的特征参数达到预设参考信息中所记录的特征参数的极大值时,将与极大值对应的驱动参数确定为用于调整驱动电路的第一驱动参数。
结合图3B进行示例性说明,根据图3B的重力加速度与驱动电压的频率的关系可知,当重力加速度达到极大值时,对应的频点即为最大的频 点,因此通过扫频的方式找到重力加速度的极大值,即可找到F0点,该F0点即可视为第一驱动参数。
在步骤308中,控制驱动电路以第一驱动参数驱动马达。
步骤308的相关描述可以参见上述图1A所示实施例的描述,在此不再详述。
下面结合图3C对本实施例的方案进行示例性描述,如图3C所示,在虚线31对应的第一时间点之前,马达12处于未振动状态,重力传感器13采集的重力加速度基本上为0。在第一时间点,驱动电路11驱动马达开始振动,此时驱动电路11输出的重力加速度的幅值持续增加,周期从大向小变化,相应地,频率从小向大变化,处理器10通过本实施例得到第一驱动参数(本实施例为F0)后,控制驱动电路11以F0的频率输出驱动电压,在虚线32对应的第二时间点,重力加速度的幅值以及周期趋于稳定,表示马达12的振动处于稳定状态。
本实施例中,通过具有力学性质的振动信息代替电信号,通过开环结构的驱动电路完成对交流马达的更优控制,由于可以通过电子设备上固有的元器件来采采集马达在振动过程中产生的振动信息,因此本公开不用增加闭环结构即可使交流马达的振动达到稳定的振动状态,相比使用闭环结构的驱动电路成本更低。
图4A是根据一示例性实施例三示出的控制马达振动的方法的流程示意图,图4B是根据图4A所示实施例的马达在振动过程中的重力加速度的分布示意图;本实施例利用本公开实施例提供的上述方法,以马达的类型为直流马达并且驱动参数为驱动电路输出的驱动电压为例并结合图1B进行示例性说明,如图4A所示,包括如下步骤:
在步骤401中,采集马达在振动过程中产生的振动信息。
步骤401的相关描述可以参见上述图1A所示实施例的描述,在此不再详述。
在步骤402中,确定振动信息在振动过程中的特征参数。
在步骤403中,从预设参考信息中查找与特征参数对应的第二驱动参数,预设参考信息用于记录马达工作在稳定状态时的特征参数与驱动电路所采用的驱动参数之间的对应关系。
步骤402和步骤403的相关描述可以参见上述图2所示实施例的描述,在此不再详述。
在步骤404中,根据第二驱动参数与预设的第三驱动参数之间的差值,确定用于调整驱动电路的第一驱动参数,其中,第三驱动参数为马达工作在稳定状态的驱动参数。
在步骤405中,基于第二驱动参数和差值确定用于调整驱动电路的第一驱动参数。
在步骤406中,控制驱动电路以第一驱动参数驱动马达。
在一示例性场景中,对于马达12,其所采用的驱动电压为3伏(该电压可视为本实施例中的第三驱动参数),理论上,驱动电路11可向马达12提供3伏的驱动电压,由于驱动电路11和马达12之间通过导线电连接,因此驱动电路11和马达12之间存在导线固有的电阻(可称为线抗),因此当驱动电路11向马达提供3伏的驱动电压时,施加在马达11的驱动电压由于线抗的存在会降低为2.7伏,若从预设参考信息中查找到与重力加速度的幅值对应的驱动电压为3.5伏(可视为本公开中的第二驱动参数),第二驱动参数与第三驱动参数之间的差值为0.5伏,若预设阈值为0.1伏,由于0.5伏大于0.1伏,表示驱动电路11向马达12提供的驱动电压尚不能够达到马达12处于工作在稳定状态时所使用的电压,因此需要基于0.5伏调整驱动电路11输出的驱动电压3.0伏,具体地,可以将0.5伏作为偏移量施加到驱动电路11输出的驱动电压3.0伏上,即,驱动电路11向马达12提供的驱动电压为3.5伏,通过上述方法的迭代,直至差值小于预设阈值时,停止调整驱动电路11输出的驱动电压。
下面结合图4B对本实施例的方案进行示例性描述,如图4B所示,在虚线41对应的第三时间点之前,马达12处于未振动状态,重力传感器 13采集的重力加速度基本上为0。在虚线41对应的第三时间点,驱动电路11驱动马达12开始振动,此时驱动电路11输出的重力加速度的幅值持续增加,处理器10通过本实施例得到第二驱动参数后,控制驱动电路11通过第三驱动参数和第二驱动参数的差值以及第二驱动参数来来调整驱动电路的输出电压,即本公开中的第一驱动参数,在虚线42对应的第二时间点,重力加速度的幅值趋于稳定,表示马达12工作在稳定状态。
本实施例中,通过重将具有力学性质的振动信息代替电信号,通过开环结构的驱动电路完成对直流马达的更优控制,由于可以采用电子设备上固有的元器件采集振动信息,因此本公开不用增加闭环结构即可使直流马达的振动达到稳定的振动状态,相比使用闭环结构的驱动电路成本更低。
图5是根据一示例性实施例示出的一种控制马达振动的装置的结构示意图,如图5所示,控制马达振动的装置包括:
振动信息采集模块51,被配置为采集马达在振动过程中产生的振动信息;
第一确定模块52,被配置为根据振动信息采集模块51采集的振动信息、与马达的类型对应的预设参考信息,确定马达的驱动电路的第一驱动参数,其中,预设参考信息用于记录马达工作在稳定状态时的特征参数与驱动电路所采用的驱动参数之间的对应关系;
第一控制模块53,被配置为控制驱动电路以第一确定模块52确定的第一驱动参数驱动马达。
图6是根据一示例性实施例示出的另一种控制马达振动的装置的结构示意图,在上述图5所示实施例的基础上,在一实施例中,第一确定模块52可包括:
第一确定子模块521,被配置为根据振动信息确定马达在振动过程中的特征参数;
第二确定子模块522,被配置为基于马达的类型对应的预设参考信息,确定第一确定子模块521确定的振动过程中的特征参数对应的第二驱 动参数;
第三确定子模块523,被配置为根据第二确定子模块查522确定的第二驱动参数确定用于调整驱动电路的第一驱动参数。
图7是根据一示例性实施例示出的再一种控制马达振动的装置的结构示意图,如图7所示,在上述图6所示实施例的基础上,在一实施例中,第三确定子模块523具体被配置为:
确定第二驱动参数对应的特征参数是否达到预设参考信息中所记录的特征参数的极大值;
当第二驱动参数对应的特征参数达到预设参考信息中所记录的特征参数的极大值时,将与极大值对应的驱动参数确定为用于调整驱动电路的第一驱动参数。
在一实施例中,装置还可包括:
第二确定模块54,被配置为在振动信息采集模块51采集马达在振动过程中产生的振动信息之前,确定马达所采用的驱动参数的预设范围;
第二控制模块55,被配置为控制驱动电路在第二确定模块54确定的预设范围内依次输出相差预设间隔的驱动参数,通过相差预设间隔的驱动参数驱动马达;
振动信息采集模块51被配置为:
采集第二控制模块55控制马达在相差预设间隔的驱动参数的驱动下产生的振动信息。
在一实施例中,第三确定子模块523具体被配置为:
根据第二驱动参数与预设的第三驱动参数之间的差值,确定用于调整驱动电路的第一驱动参数,其中,第三驱动参数为马达工作在稳定状态的驱动参数;
基于第二驱动参数和差值确定用于调整驱动电路的第一驱动参数。
在一实施例中,第三确定子模块523具体被配置为:
确定差值的绝对值是否大于或者等于预设阈值;
当绝对值大于或者等于预设阈值时,根据差值调整第二驱动参数,直至第二驱动参数与第三驱动参数之间的差值的绝对值小于预设阈值;
当绝对值小于预设阈值时,第一控制模块53执行控制驱动电路以第一驱动参数驱动马达的步骤。
在一实施例中,装置还可包括:
第三确定模块56,被配置为通过从电子设备记录的关于驱动电路的驱动信息,确定马达的类型,振动信息采集模块51执行采集与马达的类型对应的振动信息。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。
图8是根据一示例性实施例示出的一种适用于控制马达振动的装置的结构示意图例如,装置800可以是智能设备、平板电脑等具有振动功能电子设备。
参照图8,装置800可以包括以下一个或多个组件:处理组件802,存储器804,电源组件806,多媒体组件808,音频组件810,输入/输出(I/O)的接口812,传感器组件814,以及通信组件816。
处理组件802通常控制装置800的整体操作,诸如与显示,电话呼叫,数据通信,相机操作和记录操作相关联的操作。处理元件802可以包括一个或多个处理器820来执行指令,以完成上述的方法的全部或部分步骤。此外,处理组件802可以包括一个或多个模块,便于处理组件802和其他组件之间的交互。例如,处理部件802可以包括多媒体模块,以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在设备800的操作。这些数据的示例包括用于在装置800上操作的任何应用程序或方法的指令,联系人数据,电话簿数据,消息,图片,视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,如静态随机存取存储器(SRAM),电可擦除可编程只读存储器(EEPROM),可擦 除可编程只读存储器(EPROM),可编程只读存储器(PROM),只读存储器(ROM),磁存储器,快闪存储器,磁盘或光盘。
电力组件806为装置800的各种组件提供电力。电力组件806可以包括电源管理系统,一个或多个电源,及其他与为装置800生成、管理和分配电力相关联的组件。
多媒体组件808包括在所述装置800和用户之间的提供一个输出接口的屏幕。在一些实施例中,屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板,屏幕可以被实现为触摸屏,以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界,而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中,多媒体组件808包括一个前置摄像头和/或后置摄像头。当设备800处于操作模式,如拍摄模式或视频模式时,前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件810被配置为输出和/或输入音频信号。例如,音频组件810包括一个麦克风(MIC),当装置800处于操作模式,如呼叫模式、记录模式和语音识别模式时,麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中,音频组件810还包括一个扬声器,用于输出音频信号。
I/O接口812为处理组件802和外围接口模块之间提供接口,上述外围接口模块可以是键盘,点击轮,按钮等。这些按钮可包括但不限于:主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器,用于为装置800提供各个方面的状态评估。例如,传感器组件814可以检测到设备800的打开/关闭状态,组件的相对定位,例如所述组件为装置800的显示器和小键盘,传感器组件814还可以检测装置800或装置800一个组件的位置改变,用户 与装置800接触的存在或不存在,装置800方位或加速/减速和装置800的温度变化。传感器组件814可以包括接近传感器,被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器,如CMOS或CCD图像传感器,用于在成像应用中使用。在一些实施例中,该传感器组件814还可以包括加速度传感器,陀螺仪传感器,磁传感器,压力传感器或温度传感器。
通信组件816被配置为便于装置800和其他设备之间有线或无线方式的通信。装置800可以接入基于通信标准的无线网络,如WiFi,2G或3G,或它们的组合。在一个示例性实施例中,通信部件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中,所述通信部件816还包括近场通信(NFC)模块,以促进短程通信。例如,在NFC模块可基于射频识别(RFID)技术,红外数据协会(IrDA)技术,超宽带(UWB)技术,蓝牙(BT)技术和其他技术来实现。
在示例性实施例中,装置800可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现,用于执行上述控制马达振动的方法,方法包括:
采集马达在振动过程中产生的振动信息;根据所述振动信息、与所述马达的类型对应的预设参考信息,确定所述马达的驱动电路的第一驱动参数,所述预设参考信息用于记录所述马达工作在稳定状态时的特征参数与所述驱动电路所采用的驱动参数之间的对应关系;控制所述驱动电路以所述第一驱动参数驱动所述马达。
在示例性实施例中,还提供了一种包括指令的非临时性计算机可读存储介质,例如包括指令的存储器804,上述指令可由装置800的处理器820执行以完成上述方法。例如,非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设 备等。处理器820被配置为:
采集马达在振动过程中产生的振动信息;根据所述振动信息、与所述马达的类型对应的预设参考信息,确定所述马达的驱动电路的第一驱动参数,所述预设参考信息用于记录所述马达工作在稳定状态时的特征参数与所述驱动电路所采用的驱动参数之间的对应关系;控制所述驱动电路以所述第一驱动参数驱动所述马达。
本领域技术人员在考虑说明书及实践这里公开的公开后,将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本公开并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (15)

  1. 一种控制马达振动的方法,其特征在于,所述方法包括:
    采集马达在振动过程中产生的振动信息;
    根据所述振动信息、与所述马达的类型对应的预设参考信息,确定所述马达的驱动电路的第一驱动参数,所述预设参考信息用于记录所述马达工作在稳定状态时的特征参数与所述驱动电路所采用的驱动参数之间的对应关系;
    控制所述驱动电路以所述第一驱动参数驱动所述马达。
  2. 根据权利要求1所述的方法,其特征在于,所述根据所述振动信息、与所述马达的类型对应的预设参考信息确定所述马达的驱动电路的第一驱动参数,包括:
    根据所述振动信息确定所述马达在振动过程中的特征参数;
    基于与所述马达的类型对应的预设参考信息确定所述振动过程中的特征参数对应的第二驱动参数;
    根据所述第二驱动参数确定用于调整驱动电路的第一驱动参数。
  3. 根据权利要求2所述的方法,其特征在于,所述根据所述第二驱动参数确定用于调整驱动电路的第一驱动参数,包括:
    确定所述第二驱动参数对应的特征参数是否达到所述预设参考信息中所记录的特征参数的极大值;
    当所述第二驱动参数对应的特征参数达到所述预设参考信息中所记录的特征参数的极大值时,将与所述极大值对应的驱动参数确定为用于调整驱动电路的第一驱动参数。
  4. 根据权利要求3所述的方法,其特征在于,在所述采集马达在振动过程中产生的振动信息的步骤之前,所述方法还包括:
    确定所述马达所采用的驱动参数的预设范围;
    控制所述驱动电路在所述预设范围内依次输出相差预设间隔的驱动参 数,通过所述相差预设间隔的驱动参数驱动所述马达;
    所述采集马达在振动过程中产生的振动信息,包括:
    采集马达在所述相差预设间隔的驱动参数的驱动下产生的振动信息。
  5. 根据权利要求2所述的方法,其特征在于,所述根据所述第二驱动参数确定用于调整驱动电路的第一驱动参数,包括:
    根据所述第二驱动参数与预设的第三驱动参数之间的差值,确定用于调整驱动电路的第一驱动参数,其中,所述第三驱动参数为所述马达工作在稳定状态的驱动参数;
    基于所述第二驱动参数和所述差值确定用于调整所述驱动电路的第一驱动参数。
  6. 根据权利要求5所述的方法,其特征在于,所述基于所述第二驱动参数和所述差值确定用于调整所述驱动电路的第一驱动参数,包括:
    确定所述差值的绝对值是否大于或者等于预设阈值;
    当所述绝对值大于或者等于所述预设阈值时,根据所述差值调整所述第二驱动参数,直至所述第二驱动参数与所述第三驱动参数之间的差值的绝对值小于所述预设阈值;
    当所述绝对值小于所述预设阈值时,执行所述控制所述驱动电路以所述第一驱动参数驱动所述马达的步骤。
  7. 根据权利要求1-5任一所述的方法,其特征在于,所述方法还包括:
    通过从电子设备记录的关于所述驱动电路的驱动信息,确定所述马达的类型。
  8. 一种控制马达振动的装置,其特征在于,所述装置包括:
    振动信息采集模块,被配置为采集马达在振动过程中产生的振动信息;
    第一确定模块,被配置为根据所述振动信息采集模块采集的所述振动信息、与所述马达的类型对应的预设参考信息,确定所述马达的驱动电路的第一驱动参数,所述预设参考信息用于记录所述马达工作在稳定状态时的特征参数与所述驱动电路所采用的驱动参数之间的对应关系;
    第一控制模块,被配置为控制所述驱动电路以所述第一确定模块确定的所述第一驱动参数驱动所述马达。
  9. 根据权利要求8所述的装置,其特征在于,所述第一确定模块包括:
    第一确定子模块,被配置为根据所述振动信息确定所述马达在振动过程中的特征参数;
    第二确定子模块,被配置为基于所述马达的类型对应的预设参考信息,确定所述第一确定子模块确定的所述振动过程中的所述特征参数对应的第二驱动参数;
    第三确定子模块,被配置为根据所述第二确定子模块确定的所述第二驱动参数确定用于调整驱动电路的第一驱动参数。
  10. 根据权利要求9所述的装置,其特征在于,所述第三确定子模块具体被配置为:
    确定所述第二驱动参数对应的特征参数是否达到所述预设参考信息中所记录的特征参数的极大值;
    当所述第二驱动参数对应的特征参数达到所述预设参考信息中所记录的特征参数的极大值时,将与所述极大值对应的驱动参数确定为用于调整驱动电路的第一驱动参数。
  11. 根据权利要求10所述的装置,其特征在于,所述装置还包括:
    第二确定模块,被配置为在所述振动信息采集模块采集马达在振动过程中产生的振动信息之前,确定所述马达所采用的驱动参数的预设范围;
    第二控制模块,被配置为控制所述驱动电路在所述第二确定模块确定的所述预设范围内依次输出相差预设间隔的驱动参数,通过所述相差预设间隔的驱动参数驱动所述马达;
    所述振动信息采集模块还被配置为:
    采集所述第二控制模块控制所述马达在所述相差预设间隔的驱动参数的驱动下产生的振动信息。
  12. 根据权利要求9所述的装置,其特征在于,所述第三确定子模块 具体被配置为:
    根据所述第二驱动参数与预设的第三驱动参数之间的差值,确定用于调整驱动电路的第一驱动参数,其中,所述第三驱动参数为所述马达工作在稳定状态的驱动参数;
    基于所述第二驱动参数和所述差值确定用于调整所述驱动电路的第一驱动参数。
  13. 根据权利要求12所述的装置,其特征在于,所述第三确定子模块具体被配置为:
    确定所述差值的绝对值是否大于或者等于预设阈值;
    当所述绝对值大于或者等于所述预设阈值时,根据所述差值调整所述第二驱动参数,直至所述第二驱动参数与所述第三驱动参数之间的差值的绝对值小于所述预设阈值;
    当所述绝对值小于所述预设阈值时,所述第一控制模块执行所述控制所述驱动电路以所述第一驱动参数驱动所述马达的步骤。
  14. 根据权利要8-12任一所述的装置,其特征在于,所述装置还包括:
    第三确定模块,被配置为通过从电子设备记录的关于所述驱动电路的驱动信息,确定所述马达的类型,所述振动信息采集模块执行采集与所述马达的类型对应的振动信息。
  15. 一种电子设备,其特征在于,所述电子设备包括:
    处理器;
    用于存储处理器可执行指令的存储器;
    其中,所述处理器被配置为:
    采集马达在振动过程中产生的振动信息;
    根据所述振动信息、与所述马达的类型对应的预设参考信息,确定所述马达的驱动电路的第一驱动参数,所述预设参考信息用于记录所述马达工作在稳定状态时的特征参数与所述驱动电路所采用的驱动参数之间的对应关系;
    控制所述驱动电路以所述第一驱动参数驱动所述马达。
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