CN115148221A - Sound control method and control device for pulse heating of power battery - Google Patents
Sound control method and control device for pulse heating of power battery Download PDFInfo
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- CN115148221A CN115148221A CN202210720455.5A CN202210720455A CN115148221A CN 115148221 A CN115148221 A CN 115148221A CN 202210720455 A CN202210720455 A CN 202210720455A CN 115148221 A CN115148221 A CN 115148221A
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- G—PHYSICS
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- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/25—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by controlling the electric load
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
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Abstract
The invention discloses a sound control method and a sound control device for pulse heating of a power battery, wherein an electric automobile comprises the power battery and an electric drive system, the electric drive system at least comprises a control module and a motor, and the control method comprises the following steps: acquiring audio output information in a battery heating mode; determining a heating instruction according to the acquired audio output information, wherein the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction; and driving the motor according to the heating instruction to heat the power battery in a charging and discharging mode. The battery heating device can play fixed tone sound or combined tone music in the battery heating process by changing the pulse frequency of the battery heating so as to emit different tone sounds, thereby remarkably improving the subjective feeling of a user in the battery heating process.
Description
Technical Field
The disclosure relates to the technical field of power battery charging, in particular to a sound control method and a sound control device for pulse heating of a power battery.
Background
Compared with fuel vehicles, pure electric and hybrid electric vehicles have the advantages of less pollution emission, low operation noise, high fuel economy and the like. In recent years, pure electric vehicles and hybrid electric vehicles have been widely popularized and applied.
In a low-temperature environment, the charging and discharging capabilities of the power battery of the electric vehicle are limited, and the power battery needs to be heated to an appropriate working temperature as soon as possible in order not to affect the use. The PTC heating technology is usually adopted in the traditional power battery heating, so that the cost is high, the heating efficiency is low, and the power battery needs to be discharged at a low temperature, so that the lithium precipitation of the power battery is caused, and the service life of the power battery is influenced. The pulse heating technology of the power battery utilizes the motor IGBT to complete the heating function of the power battery, and has more advantages in the aspects of cost and heating efficiency. However, in order to ensure a good heating rate, a large-amplitude alternating current is required, which may cause some components of the three-phase motor assembly, such as filter capacitors and inductors, to vibrate, and generate high-frequency sharp and harsh noises, which may seriously affect subjective feelings of users inside and outside the vehicle.
Disclosure of Invention
In view of the above, an object of the present disclosure is to provide a sound control method and a sound control device for pulse heating of a power battery, so as to solve the technical problem in the prior art that the charging noise of the battery is large through the natural frequency.
In order to achieve the above object, in a first aspect, the present disclosure provides a sound control method for pulse heating of a power battery, where the electric vehicle includes the power battery and an electric drive system, the electric drive system at least includes a control module and an electric motor, and the method includes: acquiring audio output information in a battery heating mode; determining a heating instruction according to the acquired audio output information, wherein the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction; and driving the motor according to the heating instruction to heat the power battery in a charging and discharging mode.
In some embodiments, the determining a heating instruction from the obtained audio output information comprises: determining an audio parameter based on the audio output information, wherein the audio parameter comprises at least pitch or volume; determining a heating instruction based on the audio parameter, the heating instruction comprising at least a frequency instruction or a magnitude instruction.
In some embodiments, before the determining the heating instruction based on the audio parameter, the method further includes writing a frequency value and a magnitude corresponding to pitch data and/or volume data of the target audio into a frequency instruction table and a magnitude instruction table, respectively.
In some embodiments, the current heating command is an alternating d-axis current command and a q-axis current command is given a value of 0; the voltage heating command is an alternating d-axis voltage command and the q-axis voltage command is given 0.
In some embodiments, the d-axis current command comprises at least one of a current command in the form of a square wave and a current command in the form of a sine wave; the d-axis voltage command includes at least one of a voltage command in the form of a square wave and a voltage command in the form of a sine wave.
In some embodiments, the control module turns on the battery heating mode when the battery is in a low temperature state and the charging gun is inserted into the vehicle or a user remote charging reservation request is received.
In a second aspect, the present disclosure also provides a sound control device for pulse heating of a power battery, wherein the electric vehicle comprises a power battery and an electric drive system, the electric drive system at least comprises a control module and an electric motor, and the device comprises: the acquisition module is used for acquiring audio output information in a battery heating mode; the determining module is used for determining a heating instruction according to the acquired audio output information, wherein the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction; and the driving module is used for driving the motor according to the heating instruction and heating the power battery in a charging and discharging mode.
In a third aspect, the present disclosure further provides a storage medium storing a computer program, where the computer program is executed by a processor to implement the steps of the method in any one of the above technical solutions.
In a fourth aspect, the present disclosure further provides an electronic device, which at least includes a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the method in any one of the above technical solutions when executing the computer program on the memory.
The embodiment of the disclosure can play the sound of fixed tones or play the music of combined tones in the battery heating process by changing the pulse frequency of the battery heating, and can effectively reduce the noise generated in the battery heating process while realizing the low-temperature heating of the power battery, thereby remarkably improving the subjective feeling of a user in the battery heating process.
In order to make the aforementioned objects, features and advantages of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating the steps of a voice control method for pulse heating of a power battery provided by the present disclosure;
FIG. 2 is a functional block diagram of a powertrain of an electric vehicle provided by the present disclosure;
FIG. 3 is a schematic illustration of the steps provided by the present disclosure for determining a heating instruction based on the retrieved audio output information;
FIGS. 4A and 4B are a magnitude command table and a frequency command table provided by the present disclosure;
FIG. 5 is a schematic diagram of an actively-generated instruction output module according to the present disclosure;
FIG. 6 is a detailed waveform diagram of voltage form heating and current form heating of the power cell heating algorithm provided by the present disclosure;
FIG. 7 is a block diagram of a control device for heating a power battery of an electric vehicle according to the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device provided by the present disclosure.
Detailed Description
Specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, but the present disclosure is not limited thereto.
It will be understood that various modifications may be made to the embodiments disclosed herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the present disclosure will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.
It should also be understood that, although the present disclosure has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the disclosure, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
The present disclosure is further described with reference to the following figures and specific examples.
Example 1
The first embodiment of the disclosure relates to the field of power battery charging, in particular to a control method for heating a power battery of an electric vehicle.
Fig. 1 is a flowchart illustrating steps of a sound control method for pulse heating of a power battery according to an embodiment of the present disclosure, where the present embodiment is applicable to a power battery heating scenario of any device having an electric drive system, and the method may be, but is not limited to be, executed by an electric vehicle according to an embodiment of the present disclosure, where the execution main body may be implemented in software and/or hardware.
The electric automobile comprises an electric driving system and a power battery, the electric driving system comprises a control module, a motor driving module and a motor, and the power battery is connected with the motor driving module.
The power battery may be any rechargeable battery, which is not limited in this disclosure, and may be, for example, a lithium battery, a nickel-metal hydride battery, a sodium-sulfur battery, or a lead-acid battery. The connection link of the power battery and the motor drive module can be an electric link.
The type of Motor may be a Permanent Magnet Synchronous Motor (PMSM), or may be an alternating current Asynchronous Motor (ACMC), or may be a Brushless DC Motor (BLDC), or may be an excited Motor (EEM).
The Control module may include a Motor Control Unit (MCU), and the Motor driving module may include an inverter. In another embodiment, when both a main positive relay and a main negative relay of a Vehicle high-voltage system are in a closed state and high-voltage electrification is completed, a Vehicle Control Unit (VCU) controls an MCU to enter a battery heating mode to generate a heating instruction, and outputs a driving Control signal according to the heating instruction.
Fig. 2 is a functional block diagram of a power system of an electric vehicle according to an embodiment of the present invention. Referring to fig. 2, the electric vehicle includes a torque command receiving module 1, a motor position sensor 2, a motor position information transmitting module 3, and an inverter 4. The motor position sensor 2 may be a rotary transformer, or may be an incremental encoder, or may be any sensor that can detect motor rotor position information. The embodiment of the present invention is described by taking a three-phase permanent magnet synchronous motor as an example, but the embodiment of the present invention is not limited thereto.
In an electric automobile, after a motor position sensor 2 detects a motor rotor position theta and motor rotation speed information omega of a three-phase permanent magnet synchronous motor, a motor position information transmission module 2 transmits the motor rotor position theta and the motor rotation speed information omega to a forward conversion module 6 and a reverse conversion module 7. Three-phase current I of reverse conversion module 7 based on three-phase permanent magnet synchronous motor u_value 、I v_value And I w_value Completing the coordinate system transformation and obtaining d-axis current I d_value And q-axis current I q_value . In the mode of motor output torque, the torque instruction receiving module 1 receives a torque instruction Te sent by the VCU cmd And sent to the torque-current command calculation module 5. Torque-current command calculation module 5 outputs torque command Te cmd Value conversion to d-axis current command i d_cmd And q axis current command i q_cmd . d-axis current command id _cmd And q-axis current command i q_cmd Respectively corresponding to d-axis current value I d_value And q-axis current value I q_value After the difference is made, the difference value is input to the PI control module 9.PI control module 9 calculates and outputs d-axis voltage instruction u d And q-axis voltage command u q . d-axis voltage command u d And q-axis voltage command u q Sitting through the forward conversion module 6After the mark conversion operation, the d-axis voltage command u is given d Converted into Alfa axis voltage command u α Q-axis voltage command u q Converted into Beta axis voltage command u β . Alfa axis voltage command u α And Beta axis voltage command u β After the input is input to the SVPWM module 8, 6 paths of PWM duty ratio commands are output through calculation of the SVPWM module 8, and the switching on and switching off of 6 power devices UT, VT, WT, UB, VB and WB of the inverter 4 are controlled based on the 6 paths of PWM duty ratio commands, thereby controlling the three-phase permanent magnet synchronous motor to output a specified torque.
As shown in fig. 1, the sound control method for pulse heating of the power battery specifically includes the following steps:
and S101, acquiring audio output information in a battery heating mode.
In the step, audio output information is acquired in the battery heating mode, wherein the audio output information can be designated music, songs, or some sounds output in an analog mode; the designated music and songs can be randomly selected from a plurality of pieces of preset music or actively selected from the plurality of pieces of preset music by the driver.
Specifically, the battery heating mode is confirmed to be started when the fact that a charging gun is inserted into the whole vehicle is recognized or a user remote charging reservation request is received when the battery is in a low-temperature state.
S102, determining a heating instruction according to the acquired audio output information, wherein the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction.
After the step S101 is completed, in this step, a heating instruction is determined according to the acquired audio output information, where the heating instruction is used to provide an instruction reference for the control module in the heating mode to output the driving control signal.
Specifically, the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction; the signal type of the heating instruction may be an analog signal, or may be a digital signal; when the signal type of the heating instruction is a digital signal, the number system of the heating instruction may be a binary system, which is not limited by the embodiment of the present disclosure. The transmission of the heating instruction may be a wired transmission or may be a wireless transmission.
Further, as shown in fig. 3, the determining a heating instruction according to the acquired audio output information specifically includes the following steps:
s201, determining audio parameters based on the audio output information, wherein the audio parameters at least comprise pitch or volume.
In this step, an audio parameter is determined based on the audio output information, wherein the audio parameter comprises at least pitch or volume. After the audio output information is determined, the song or simulated sound to be produced during the heating of the power cell is determined. The song is composed of several different notes, and to produce a complete song, data consisting of a set of pitches that vary with time are obtained for each of the notes that make up the song.
S202, determining a heating instruction based on the audio parameters, wherein the heating instruction at least comprises a frequency instruction or an amplitude instruction.
After determining the pitch or volume data, in this step, heating instructions are determined based on the pitch or volume data. The nature of sound is mechanical wave, so the sound velocity is fixed, the sound level is determined by the frequency and wavelength of the mechanical wave, and the sound level is determined by the 'amplitude' and the distance of human from the sound source. A high frequency, a short wavelength, a high sound, whereas a low frequency, a long wavelength, a low sound. The amplitude is large, the loudness is large, the distance between the person and the sound source is small, and the loudness is large. That is, after the pitch or volume is determined, the frequency or amplitude that should be required to produce it is determined accordingly.
In order to obtain frequency or amplitude information, as shown in fig. 4, frequency values and amplitudes corresponding to pitch data and/or volume data of a target audio may be written into a frequency instruction table and an amplitude instruction table, respectively, and a required frequency heating instruction or amplitude heating instruction may be determined by referring to the instruction tables, where music, songs, or analog sound data may be obtained by recording with a recording device, or may be written by artificial design. The time information can be written into the time information of sound playing, and can also be written into the numerical value of a chip clock or a software system clock counter.
Specifically, through the active sounding instruction generation module, output of battery heating instructions for different driving can be achieved. As shown in fig. 5, the input signal of the active sound generation module is time information, and the time information may be relative time, i.e. playing time of music, song or analog sound, or may be a chip clock or a system counter value count corresponding to a time item. The active sounding instruction generation module obtains the sounding pitch and the sounding volume of music or songs through the amplitude instruction table look-up module and the frequency instruction table look-up module and by looking up the instruction table, wherein the sounding pitch is a frequency instruction I in the form of voltage or current freq ，U freq . Amplitude instruction I in the form of sound volume, i.e. voltage or current amp ，U amp 。
The active sounding instruction generation module can generate a current instruction or a voltage instruction according to the determined heating instruction. For example, in the case of a liquid, the active sounding instruction generation module can give an alternating d-axis current instruction in the form of a current instruction
And giving the q-axis current command 0, or an alternating q-axis current command may be given in the form of a current command
Giving a d-axis current command as 0; the command output module can also give an alternating d-axis voltage command in the form of a voltage command
And giving the q-axis voltage command 0, or an alternating q-axis voltage command may be given in the form of a voltage command
And gives the d-axis voltage command 0. Therefore, the bus end of the MCU can form a crossThe alternating charging and discharging current can realize the heating function of the power battery under the low-temperature working condition. In addition, the current or voltage command of the d-axis or the q-axis is given as 0 to ensure that the three-phase permanent magnet synchronous motor does not continuously output the torque during the heating process of the power battery. Therefore, the scheme of the embodiment also meets the working condition that the whole vehicle is in a parking state when the low-temperature battery is heated and charged.
Further, fig. 6 shows specific waveforms of voltage form heating and current form heating of the power battery heating algorithm. As shown, the d-axis current command may include at least one of a current command in the form of a square wave and a current command in the form of a sine wave; the d-axis voltage command may include at least one of a voltage command in the form of a square wave and a voltage command in the form of a sine wave.
Specifically, block A in FIG. 6 represents a voltage heating command in the form of a sine wave as a d-axis voltage command
Input to the forward transform module 8. The voltage command for the q-axis at this time is 0. The amplitude and frequency of the sine wave in the module A are respectively set by U amp ，U freq To control. Block B represents a voltage heating command in the form of a square wave
This command is input to the forward conversion module 8 as a d-axis voltage command. The voltage command for the q axis at this time is 0. The amplitude and frequency of the square wave in the module B are respectively set by U amp ，U freq To control. Module C indicates the current heating command in the form of a sine wave
This command is input to the PI module 7 as a d-axis current command, and the q-axis current command is 0 at this time. The amplitude and frequency of the sine wave in the module C are respectively represented by I amp ，I freq To control. Block D represents a current heating command in the form of a square wave
This command is input to the PI module 7 as a d-axis current command, and the q-axis current command is 0 at this time. The amplitude and frequency of the sine wave in the module D are respectively represented by I amp ，I freq To control.
In addition, the alternating d-axis current command may be any other alternating current command besides the square wave current command and the sine wave current command, but the present invention is not limited to this, and may be, for example, a triangular wave current command, a trapezoidal wave current command, or a stepped wave current command.
Accordingly, the alternating d-axis voltage command may be any other alternating voltage command besides the square-wave voltage command and the sine-wave voltage command, and the embodiment of the present invention is not limited thereto, and may be, for example, a triangular-wave voltage command, a trapezoidal-wave voltage command, or a stepped-wave voltage command.
And S103, driving the motor according to the heating instruction to heat the power battery in a charging and discharging mode.
After the completion of the above step S102, in this step, a frequency command I in the form of a determined voltage or current is given freq ，U freq Sum amplitude instruction I amp ，U amp The motor is driven to heat the power battery in a charging and discharging mode, and corresponding music is generated.
The sound control method for pulse heating of the power battery provided by the embodiment of the disclosure can play fixed-tone sound or combined-tone music in the battery heating process by changing the pulse frequency of battery heating, and can effectively reduce noise generated in the battery heating process while realizing low-temperature heating of the power battery, thereby significantly improving subjective feeling of users in the battery heating process.
Example 2
In order to better implement the above method, the second aspect of the present disclosure also provides a sound control device for pulse heating of a power battery of an electric vehicle, which control device may be integrated on an electronic device, wherein the electric vehicle comprises the power battery and an electric drive system, which electric drive system comprises at least a control module and an electric machine.
For example, as shown in fig. 7, the control device 200 may include: the obtaining module 210, the determining module 220, and the driving module 230 are specifically as follows:
(1) An obtaining module 210 is configured to obtain the audio output information in the battery heating mode.
Specifically, the audio output information may be designated music, songs, or analog output of certain sounds; the designated music and songs can be randomly selected from a plurality of pieces of preset music or actively selected from the plurality of pieces of preset music by the driver.
(2) A determining module 220, configured to determine a heating instruction according to the acquired audio output information, where the heating instruction includes at least one of a voltage heating instruction and a current heating instruction.
Specifically, the determining module 220 may further include an audio parameter determining unit and a heating instruction determining unit. Wherein the audio parameter determination unit determines an audio parameter based on the audio output information, the audio parameter including at least pitch or volume; the heating instruction determination unit determines a heating instruction based on the audio parameter, the heating instruction including at least a frequency instruction or an amplitude instruction.
(3) And the driving module 230 is configured to drive the motor according to the heating instruction, and heat the power battery in a charging and discharging manner.
The sound control method for pulse heating of the power battery provided by the embodiment of the disclosure can play the sound with fixed tone or play the music with combined tone in the battery heating process by changing the pulse frequency of the battery heating, and can effectively reduce the noise generated in the battery heating process while realizing the low-temperature heating of the power battery, thereby remarkably improving the subjective feeling of the user in the battery heating process.
Example 3
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, a third embodiment of the present disclosure provides a storage medium, which is a computer-readable medium storing a computer program, which when executed by a processor implements the method provided by the embodiments of the present disclosure, including the following steps S11 to S13:
s11, acquiring audio output information in a battery heating mode;
s12, determining a heating instruction according to the acquired audio output information, wherein the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction;
and S13, driving the motor according to the heating instruction to heat the power battery in a charging and discharging mode.
Further, the computer program, when executed by a processor, implements the other methods provided by any of the above embodiments of the present disclosure.
The sound control method for pulse heating of the power battery provided by the embodiment of the disclosure can play the sound with fixed tone or play the music with combined tone in the battery heating process by changing the pulse frequency of the battery heating, and can effectively reduce the noise generated in the battery heating process while realizing the low-temperature heating of the power battery, thereby remarkably improving the subjective feeling of the user in the battery heating process.
Example 4
A fourth embodiment of the present disclosure provides an electronic device, as shown in fig. 8, the electronic device includes at least a processor 401 and a memory 402, the memory 402 stores a computer program thereon, and the processor 401 implements the method provided by any embodiment of the present disclosure when executing the computer program on the memory 402. Illustratively, the method performed by the electronic device computer program is as follows:
s21, acquiring audio output information in a battery heating mode;
s22, determining a heating instruction according to the acquired audio output information, wherein the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction;
and S23, driving the motor according to the heating instruction to heat the power battery in a charging and discharging mode.
In a specific implementation, the obtaining module 210, the determining module 220, and the driving module 230 are all stored in the memory 402 as program units, and the processor 401 executes the program units stored in the memory 402 to implement corresponding functions.
The sound control method for pulse heating of the power battery provided by the embodiment of the disclosure can play the sound with fixed tone or play the music with combined tone in the battery heating process by changing the pulse frequency of the battery heating, and can effectively reduce the noise generated in the battery heating process while realizing the low-temperature heating of the power battery, thereby remarkably improving the subjective feeling of the user in the battery heating process.
The storage medium may be included in the electronic device; or may exist separately without being assembled into the electronic device.
The storage medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: acquiring at least two internet protocol addresses; sending a node evaluation request comprising at least two internet protocol addresses to node evaluation equipment, wherein the node evaluation equipment selects the internet protocol addresses from the at least two internet protocol addresses and returns the internet protocol addresses; receiving an internet protocol address returned by the node evaluation equipment; wherein the obtained internet protocol address indicates an edge node in the content distribution network.
Alternatively, the storage medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: receiving a node evaluation request comprising at least two internet protocol addresses; selecting an internet protocol address from at least two internet protocol addresses; returning the selected internet protocol address; wherein the received internet protocol address indicates an edge node in the content distribution network.
Computer program code for carrying out operations for the present disclosure may be written in any combination of one or more programming languages, including but not limited to an object oriented programming language such as Java, smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the passenger computer, partly on the passenger computer, as a stand-alone software package, partly on the passenger computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the passenger computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It should be noted that the storage media described above in this disclosure can be computer readable signal media or computer readable storage media or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer readable signal medium may comprise a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may be any storage medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. Program code embodied on a storage medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present disclosure may be implemented by software or hardware. Where the name of an element does not in some cases constitute a limitation on the element itself.
The functions described herein above may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems on a chip (SOCs), complex Programmable Logic Devices (CPLDs), and the like.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other embodiments in which any combination of the features described above or their equivalents does not depart from the spirit of the disclosure. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.
Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
While the present disclosure has been described in detail with reference to the embodiments, the present disclosure is not limited to the specific embodiments, and those skilled in the art can make various modifications and alterations based on the concept of the present disclosure, and the modifications and alterations should fall within the scope of the present disclosure as claimed.
Claims (10)
1. A voice control method for pulse heating of a power battery of an electric vehicle, the electric vehicle comprising a power battery and an electric drive system, the electric drive system comprising at least a control module and an electric machine, characterized in that the method comprises:
acquiring audio output information in a battery heating mode;
determining a heating instruction according to the acquired audio output information, wherein the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction;
and driving the motor according to the heating instruction to heat the power battery in a charging and discharging mode.
2. The control method of claim 1, wherein determining a heating instruction from the obtained audio output information comprises:
determining an audio parameter based on the audio output information, wherein the audio parameter comprises at least pitch or volume;
determining a heating instruction based on the audio parameter, the heating instruction comprising at least a frequency instruction or an amplitude instruction.
3. The control method according to claim 2, wherein before the determining of the heating instruction based on the audio parameter, the method further comprises writing a frequency value and a magnitude value corresponding to pitch data and/or volume data of the target audio into a frequency instruction table and a magnitude instruction table, respectively.
4. The control method of claim 1, wherein the current heating command is an alternating d-axis current command and a q-axis current command is given as 0; the voltage heating command is an alternating d-axis voltage command and the q-axis voltage command is given as 0.
5. The control method of claim 4, wherein the d-axis current command comprises at least one of a current command in the form of a square wave and a current command in the form of a sine wave; the d-axis voltage command includes at least one of a voltage command in the form of a square wave and a voltage command in the form of a sine wave.
6. The control method of claim 1, wherein the control module turns on the battery heating mode when the battery is in a low temperature state and recognizes that a charging gun is inserted into the entire vehicle or a user remote charging reservation request is received.
7. The control method of claim 2, wherein the frequency commands are sets of switching frequency values of the audio to be output at different tunes.
8. The utility model provides a sound control device of power battery pulse heating, electric automobile includes power battery and the system of driving that drives of electricity, the system of driving of electricity includes control module and motor at least, its characterized in that, the device includes:
the acquisition module is used for acquiring audio output information in a battery heating mode;
the determining module is used for determining a heating instruction according to the acquired audio output information, wherein the heating instruction comprises at least one of a voltage heating instruction and a current heating instruction;
and the driving module is used for driving the motor according to the heating instruction and heating the power battery in a charging and discharging mode.
9. A storage medium storing a computer program, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 7 when executed by a processor.
10. An electronic device comprising at least a memory, a processor, the memory having a computer program stored thereon, characterized in that the processor realizes the steps of the method of any one of claims 1 to 7 when executing the computer program on the memory.
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