CN116357575A - Compressor noise vibration control method and device, electronic equipment and storage medium - Google Patents
Compressor noise vibration control method and device, electronic equipment and storage medium Download PDFInfo
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- CN116357575A CN116357575A CN202310179481.6A CN202310179481A CN116357575A CN 116357575 A CN116357575 A CN 116357575A CN 202310179481 A CN202310179481 A CN 202310179481A CN 116357575 A CN116357575 A CN 116357575A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000007405 data analysis Methods 0.000 claims abstract description 62
- 230000001133 acceleration Effects 0.000 claims abstract description 44
- 238000013461 design Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 16
- 238000004378 air conditioning Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000010349 pulsation Effects 0.000 abstract description 7
- 238000012545 processing Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
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- 238000012217 deletion Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/08—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/13—Noise
- F04C2270/135—Controlled or regulated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The application provides a compressor noise vibration control method, a compressor noise vibration control device, electronic equipment and a storage medium, and relates to the technical field of noise vibration control. The method comprises the following steps: collecting noise vibration data generated by the whole vehicle in a preset environment through a sensing assembly, wherein the noise vibration data comprises at least one of ear side sound quantity of a driver, vibration acceleration of an exhaust port of a compressor, vibration acceleration of a seat guide rail and vibration acceleration of a steering wheel; according to the noise vibration data, determining a data analysis result of a compressor in the whole vehicle through a preset data analysis strategy; and according to the data analysis result, adjusting the common working rotating speed range of the compressor, so that the noise intensity or vibration intensity of the compressor after the common working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value. In this way, the problem of difficult control of low-order noise vibration of the motor-driven compressor due to structural imbalance and exhaust pulsation can be improved.
Description
Technical Field
The present invention relates to the technical field of noise vibration control, and in particular, to a method and apparatus for controlling noise vibration of a compressor, an electronic device, and a storage medium.
Background
The electric scroll compressor occupies a central position in a thermal management system of a new energy automobile. When the electric scroll compressor runs, obvious noise vibration is generated, and especially in a pure electric mode, the background noise masking of an engine is lost, and the noise vibration of the electric compressor becomes one of the most main noise sources in the vehicle.
Noise vibration of the movable scroll compressor is mainly divided into three major parts, namely first-order noise vibration and low-order noise vibration caused by unbalanced control of a mechanical structure and exhaust pulsation; secondly, medium-high frequency electromagnetic noise generated by motor cogging torque; and thirdly, high-frequency noise which is generated by the controller and is related to the switching frequency and the carrier frequency thereof. The low-order noise caused by structural unbalance, exhaust pulsation and the like of the first order, the second order and the like of the compressor cannot be solved by adopting an acoustic treatment mode on the whole vehicle due to low frequency and high energy, so that the low-order noise becomes a main problem and needs to be mainly solved and controlled.
Disclosure of Invention
In view of the foregoing, an object of an embodiment of the present application is to provide a compressor noise vibration control method, apparatus, electronic device, and storage medium capable of improving the problem that low-order noise vibration of an electric compressor is difficult to control due to structural imbalance and exhaust pulsation.
In order to achieve the technical purpose, the technical scheme adopted by the application is as follows:
in a first aspect, embodiments of the present application provide a method for controlling noise vibration of a compressor, the method including:
collecting noise vibration data generated by the whole vehicle in a preset environment through a sensing assembly, wherein the noise vibration data comprises at least one of ear side sound quantity of a driver, vibration acceleration of an exhaust port of a compressor, vibration acceleration of a seat guide rail and vibration acceleration of a steering wheel;
according to the noise vibration data, determining a data analysis result of a compressor in the whole vehicle through a preset data analysis strategy;
and adjusting the common working rotating speed range of the compressor according to the data analysis result, so that the noise intensity or vibration intensity of the compressor after the common working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value.
With reference to the first aspect, in some optional embodiments, before collecting noise vibration data generated by the whole vehicle in a preset environment through the sensing assembly, the method further includes:
setting relevant working parameters of the compressor during working, wherein the working parameters comprise at least one of ambient temperature, the rotating speed of an air conditioner cooling fan, the temperature of an air conditioner and the rotating speed of an in-vehicle blower;
driving the compressor such that the compressor operates at a preset rotational speed;
and adjusting at least one of the environment temperature, the rotating speed of the air conditioner cooling fan, the temperature of the air conditioner and the rotating speed of the in-vehicle blower to enable the pressure of the vehicle-mounted air conditioning system to reach a preset limit value to serve as the preset environment.
With reference to the first aspect, in some optional embodiments, collecting noise vibration data generated by the whole vehicle in a preset environment through a sensing assembly includes:
controlling the compressor to run from the lowest design rotation speed to the highest design rotation speed at a constant speed;
and acquiring the noise vibration data through the pre-deployed sensing assembly in the process of increasing the rotating speed of the compressor.
With reference to the first aspect, in some optional embodiments, determining, according to the noise vibration data, a data analysis result of a compressor in the whole vehicle according to a preset data analysis policy includes:
generating a corresponding colormap and an order slice according to the noise vibration data;
identifying a main order of the compressor in the color map, and when the main order meets a resonance zone, the rotating speed range of the compressor corresponding to the current order;
identifying an amplitude range corresponding to the current rotating speed range through an order slice according to the rotating speed range;
and determining the noise intensity or the vibration intensity of the current order according to the amplitude range as the data analysis result.
With reference to the first aspect, in some optional embodiments, determining, according to the amplitude range, a noise intensity or a vibration intensity of the current order as the data analysis result includes:
and determining the maximum value in the amplitude range as the noise intensity or the vibration intensity, and taking the maximum value as the data analysis result.
With reference to the first aspect, in some optional embodiments, adjusting a common operating speed range of the compressor according to the data analysis result includes:
and deleting the working rotation speed corresponding to the noise intensity or the vibration intensity from the common working rotation speed range when the noise intensity or the vibration intensity exceeds the specified threshold in the data analysis result.
In a second aspect, embodiments of the present application further provide a compressor noise vibration control apparatus, the apparatus including:
the acquisition unit is used for acquiring noise vibration data generated by the whole vehicle in a preset environment through the sensing assembly, wherein the noise vibration data comprises at least one of ear side sound quantity of a driver, vibration acceleration of an exhaust port of a compressor, vibration acceleration of a seat guide rail and vibration acceleration of a steering wheel;
the determining unit is used for determining a data analysis result of the compressor in the whole vehicle according to the noise vibration data and through a preset data analysis strategy;
and the first adjusting unit is used for adjusting the common working rotating speed range of the compressor according to the data analysis result, so that the noise intensity or vibration intensity of the compressor after the common working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value.
With reference to the second aspect, in some optional embodiments, the apparatus further includes:
the setting unit is used for setting the working parameters related to the compressor during working, wherein the working parameters comprise at least one of the ambient temperature, the rotating speed of an air conditioner cooling fan, the temperature of an air conditioner and the rotating speed of an in-vehicle blower;
a driving unit for driving the compressor such that the compressor operates at a preset rotational speed;
and the second adjusting unit is used for adjusting at least one of the ambient temperature, the rotating speed of the air conditioner cooling fan, the temperature of the air conditioner and the rotating speed of the in-vehicle blower so that the pressure of the vehicle-mounted air conditioning system reaches a preset limit value to serve as the preset environment.
In a third aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes a processor and a memory coupled to each other, where the memory stores a computer program, and when the computer program is executed by the processor, causes the electronic device to perform the method described above.
In a fourth aspect, embodiments of the present application further provide a computer readable storage medium, where a computer program is stored, which when run on a computer, causes the computer to perform the above-mentioned method.
The invention adopting the technical scheme has the following advantages:
in the technical scheme that this application provided, at first gather the noise vibration data that whole car produced in predetermineeing the environment through sensing component. And then determining a data analysis result of the compressor in the whole vehicle according to the noise vibration data and through a preset data analysis strategy. And finally, according to the data analysis result, adjusting the normal working rotating speed range of the compressor, so that the noise intensity or vibration intensity of the compressor after the normal working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value. Therefore, the low-order noise vibration problem of the electric compressor caused by structural unbalance and exhaust pulsation is improved by frequency avoidance design of the rotating speed of the compressor when the compressor encounters the resonance band of the whole vehicle.
Drawings
The present application may be further illustrated by the non-limiting examples given in the accompanying drawings. It is to be understood that the following drawings illustrate only certain embodiments of the present application and are therefore not to be considered limiting of its scope, for the person of ordinary skill in the art may derive other relevant drawings from the drawings without inventive effort.
Fig. 1 is a flow chart of a compressor noise vibration control method according to an embodiment of the present application.
Fig. 2 is an optimization schematic diagram of a common working rotation speed control logic of a compressor according to an embodiment of the present application.
Fig. 3 is a block diagram of a compressor noise vibration control device according to an embodiment of the present application.
Icon: 200-compressor noise vibration control means; 210 an acquisition unit; 220-a determination unit; 230-a first adjustment unit.
Detailed Description
The present application will be described in detail below with reference to the drawings and the specific embodiments, and it should be noted that in the drawings or the description of the specification, similar or identical parts use the same reference numerals, and implementations not shown or described in the drawings are in a form known to those of ordinary skill in the art. In the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
The embodiment of the application provides an electronic device which can comprise a processing module and a storage module. The storage module stores a computer program which, when executed by the processing module, enables the server to perform the respective steps in the compressor noise vibration control method described below.
The electronic device can be deployed on a vehicle with an electric compressor and can be used as a hardware device of the vehicle for controlling noise or vibration generated by the compressor.
Referring to fig. 1, the present application further provides a method for controlling noise vibration of a compressor. The method can be applied to the electronic equipment, and the steps of the method are executed or realized by the electronic equipment. The compressor noise vibration control method may include the steps of:
and 130, adjusting a common working rotating speed range of the compressor according to the data analysis result, so that the noise intensity or vibration intensity of the compressor after the common working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value.
In the above embodiment, first, noise vibration data generated in a preset environment of the whole vehicle is collected through the sensing assembly. And then determining a data analysis result of the compressor in the whole vehicle according to the noise vibration data and through a preset data analysis strategy. And finally, according to the data analysis result, adjusting the normal working rotating speed range of the compressor, so that the noise intensity or vibration intensity of the compressor after the normal working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value. Therefore, the low-order noise vibration problem of the electric compressor caused by structural unbalance and exhaust pulsation is improved by frequency avoidance design of the rotating speed of the compressor when the compressor encounters the resonance band of the whole vehicle.
The steps of the compressor noise vibration control method will be described in detail as follows:
in step 110, after the preset environment is calibrated, the sound volume of the ear side of the driver, the vibration acceleration of the exhaust port of the compressor, the vibration acceleration of the seat guide rail, the vibration acceleration of the steering wheel and the like in the whole vehicle are collected through the sensing component to be used as noise vibration data.
In this embodiment, the sensing component may be an acceleration sensor, a microphone, or the like.
In this embodiment, the collection of noise vibration data such as the driver's ear side sound volume, the compressor discharge vibration acceleration, the seat rail vibration acceleration, the steering wheel vibration acceleration, etc. is a continuous collection process over a period of time, not a single data. And collecting the noise vibration data obtained by completion as a data source of the following colormap and order slice images.
In this embodiment, before the noise vibration data generated by the whole vehicle in the preset environment is collected by the sensing component, the method further includes:
step 101, setting relevant working parameters of the compressor during working, wherein the working parameters comprise at least one of ambient temperature, the rotating speed of an air conditioner cooling fan, the temperature of an air conditioner and the rotating speed of an in-vehicle blower;
step 102, driving the compressor to enable the compressor to run at a preset rotating speed;
and step 103, adjusting at least one of the ambient temperature, the rotating speed of the air conditioner cooling fan, the temperature of the air conditioner and the rotating speed of the in-vehicle blower so that the pressure of the vehicle-mounted air conditioning system reaches a preset limit value to serve as the preset environment.
It can be understood that the acquisition of noise vibration data of the whole vehicle and the subsequent analysis and control of noise vibration all need a specific experimental environment, so that the whole vehicle needs to be placed in a silencing chamber with the temperature adjustable range of not less than 30-46 ℃. Setting an initial value for relevant working parameters when the compressor works, for example, setting the ambient temperature of a sound-deadening chamber to 30 ℃, setting the rotating speed of an air conditioner cooling fan to 800rpm (rotating speed unit, rotating speed per minute), setting the temperature of an air conditioner in a vehicle to the lowest gear L0 or the lowest temperature to 15 ℃, and setting the rotating speed of a blower in the vehicle to the lowest rotating speed (such as 2-gear rotating speed) of the air conditioner without frosting;
after setting initial values of various working parameters, driving the compressor through a CAN (controller area network) signal or a LIN (serial communication network) signal to enable the compressor to operate at a preset rotating speed (such as 2000 rpm), and when the compressor operates at the preset rotating speed, adjusting the working parameters and monitoring the pressure of the air conditioning system in real time until the pressure of the air conditioning system reaches a preset limit value to serve as a preset environment. The preset limit value can be understood as the maximum value of the working pressure which can be borne by the air conditioner, and can be obtained by a preset air conditioner bearing pressure experiment or the maximum pressure value of the air conditioning system calibrated by a manufacturer when the vehicle-mounted air conditioning system leaves a factory.
In this embodiment, noise vibration data generated by the whole vehicle in a preset environment is collected through a sensing assembly, including:
step 111, controlling the compressor to run from the lowest design rotation speed to the highest design rotation speed at a constant speed;
and step 112, collecting the noise vibration data through the pre-deployed sensing assembly in the process of increasing the rotating speed of the compressor.
It can be understood that after the above-mentioned preset environment is built, all working parameters under the maximum pressure of the air conditioning system are solidified except the rotating speed of the compressor, and in the environment of the solidified working parameters, the compressor is controlled to be operated from the lowest design rotating speed to the highest design rotating speed, and in the operation process of the compressor, the vibration acceleration of the exhaust port of the compressor is sensed through an acceleration sensor which is arranged at the position of the exhaust hole of the compressor in advance, the vibration acceleration of the steering wheel is sensed through an acceleration sensor which is arranged at the position of 12 o' clock of the steering wheel in advance, the vibration acceleration of the seat guide rail is sensed through an acceleration sensor which is arranged in advance at the middle of the seat guide rail, and the sound quantity of the ear side of the driver is sensed through a microphone which is arranged at the side of the right ear of the driver in advance, so as to acquire and obtain noise vibration data. The minimum design rotation speed and the maximum design rotation speed of the compressor can be the minimum value and the maximum value of the working rotation speed range of the compressor calibrated by a manufacturer when the compressor leaves a factory.
Therefore, the working environment of the compressor is under the maximum working load, the noise vibration excitation of the compressor source is maximum, the acceleration frequency sweeping working condition of the compressor is sensed under the working environment, and the analysis of all excitation frequencies and response resonance frequencies in the vehicle in the working speed range of the compressor can be covered.
In step 120, after the noise vibration data is collected and obtained, the noise vibration data is analyzed by the data analysis strategy to obtain a data analysis result representing the noise intensity or vibration intensity of the compressor.
According to the noise vibration data, determining a data analysis result of a compressor in the whole vehicle through a preset data analysis strategy, wherein the data analysis result comprises the following steps:
step 121, generating a corresponding colormap and an order slice according to the noise vibration data;
step 122, identifying a main order of the compressor in the color map, and a rotation speed range of the compressor corresponding to the current order when the main order meets a resonance zone;
step 123, identifying an amplitude range corresponding to the current rotating speed range through an order slice according to the rotating speed range;
and step 124, determining the noise intensity or the vibration intensity of the current order according to the amplitude range as the data analysis result.
In step 121, the color map is a common way to identify noise or vibration intensity, order, and resonance band in the automotive field, and since the image generated by the color map is usually frequency on the horizontal axis and rotational speed on the vertical axis, that is, has no amplitude axis, it is necessary to identify the main order of the compressor, the resonance band, and the rotational speed range of the compressor corresponding to the current order when the main order meets the resonance band by the color map, and then identify the specific amplitude range of the rotational speed range corresponding to the current order by the order slice map (corresponding to steps 122 to 124 described below). Wherein, the abscissa of the order slice is the rotation speed, and the ordinate is dB (A) (decibel) or g (acceleration unit) for representing the relation between the noise intensity or vibration intensity and the rotation speed of the compressor.
In this embodiment, the above noise vibration data such as the ear sound volume of the driver, the vibration acceleration of the exhaust port of the compressor, the vibration acceleration of the seat rail, the vibration acceleration of the steering wheel, etc. may generate a color map and an order slice map separately for each item of data.
In step 122, the dominant order and resonance bands are identified by the colormap, which is the conventional manner of using the colormap (typically, diagonal lines with highlighted areas are the dominant order, and areas where dense colors occur and are perpendicular to the frequency axis are the resonance bands). And then directly obtaining the rotating speed range of the compressor corresponding to the current order when each order meets the resonance zone through the colormap.
In step 123, after the rotation speed range is obtained, the amplitude range corresponding to the rotation speed range may be directly obtained in the order slice, which is not described herein.
In step 124, after the amplitude range is obtained, the maximum value in the amplitude range is selected as the noise intensity or the vibration intensity, so as to be used as the data analysis result.
In step 130, based on the data analysis result, the normal working rotation speed range of the compressor is adjusted, so that the noise intensity or vibration intensity of the adjusted compressor is less than or equal to the corresponding specified threshold. The specified threshold may be obtained according to feedback of driving experience of the driver, for example, the noise intensity generated during the operation of the compressor should be less than or equal to 35 db.
In this embodiment, data analysis is performed on the four images generated based on the driver ear sound volume, the compressor discharge port vibration acceleration, the seat rail vibration acceleration, and the steering wheel vibration acceleration, and a data analysis result is obtained. When the noise intensity or vibration intensity in the data analysis result of any image exceeds a specified threshold value, deleting the working rotation speed corresponding to the noise intensity or vibration intensity from the common working rotation speed range; when the noise intensity or the vibration intensity does not exceed the specified threshold value, the working speed corresponding to the noise intensity or the vibration intensity is still used as the common working speed.
For example, referring to FIG. 2, when the compressor speed is (3000 rpm,4000 rpm), the noise intensity corresponding to the speed range exceeds a specified threshold, and the speed range is deleted from the normal operation speed range of the compressor, wherein the deletion of the speed range means that the speed of the compressor rapidly strokes through the speed range and enters the next normal operation speed range instead of the speed range being absent when the speed of the compressor passes through the speed range during the rising.
The following describes the noise vibration analysis and control method of the motor-driven compressor, as follows:
the vehicle to be evaluated was left standing in a sound-deadening chamber with a temperature adjustable range of not less than 30-46 c, and the initial temperature of the sound-deadening chamber environment was set to 30 c.
Subsequently, independently controlling the rotating speed of an external power supply of an air conditioner cooling fan of the vehicle to be evaluated, setting the rotating speed of the air conditioner cooling fan to 800rpm, and setting the temperature of an air conditioner in the vehicle to be L0 or the lowest temperature at an air conditioner control operation interface in the vehicle; the rotating speed of the blower in the air conditioner is set to be 2 or 3, and the minimum air quantity without frosting is taken as a standard.
And selecting a Can or Lin signal according to the control mode of the electric compressor in the whole vehicle, and independently and forcedly controlling the working rotating speed of the compressor to 2000rpm (or other calibration rotating speeds). And under the working rotation speed of 2000rpm (or other calibration rotation speeds) of the compressor, the pressure of an air conditioning system of the vehicle to be evaluated reaches a preset limit value by adjusting the ambient temperature of the anechoic chamber, adjusting the rotation speed of an air conditioning cooling fan externally connected with the vehicle to be evaluated and the like.
Arranging acceleration sensors at the exhaust port position of the compressor, the 12 o' clock position of the steering wheel and the middle part of the seat guide rail; the microphone is arranged on the right ear side of the driver. The sensor is calibrated and data acquisition is prepared.
And solidifying other working parameters except the working rotation speed of the compressor to build a test environment, forcibly controlling the compressor to rise from the lowest design rotation speed to the highest design rotation speed at a constant speed under the test environment, and collecting noise vibration data in the acceleration process.
And analyzing resonance bands of the first order, the second order and other main orders of the compressor on the whole vehicle and determining the working rotating speed range of the compressor when the current order meets the resonance bands by adopting the colormap, and further analyzing the severity of the order noise vibration through the change of the first order, the second order and other order slices of the compressor noise vibration along with the change of the rotating amplitude values so as to obtain a data analysis result.
According to the data analysis result, through optimization of the common working rotation speed control logic of the compressor, the running rotation speed of the compressor rapidly slides over the rotation speed range with the resonance band on the whole vehicle, so that the rotation speed range is not used as the common working rotation speed range of the compressor on the whole vehicle, thereby reducing complaints of a driver on noise vibration and improving user satisfaction.
Referring to fig. 3, the present application further provides a compressor noise vibration control device 200, where the compressor noise vibration control device 200 includes at least one software function module that may be stored in a memory module in the form of software or Firmware (Firmware) or cured in an Operating System (OS) of an electronic device. The processing module is configured to execute executable modules stored in the storage module, such as software function modules and computer programs included in the compressor noise vibration control device 200.
The compressor noise vibration control apparatus 200 includes an acquisition unit 210, a determination unit 220, and a first adjustment unit 230, and each unit has the following functions:
the acquisition unit 210 is configured to acquire noise vibration data generated by the whole vehicle in a preset environment through the sensing component, where the noise vibration data includes at least one of ear-side sound volume of a driver, vibration acceleration of an exhaust port of a compressor, vibration acceleration of a seat rail, and vibration acceleration of a steering wheel;
a determining unit 220, configured to determine, according to the noise vibration data, a data analysis result of the compressor in the whole vehicle through a preset data analysis strategy;
the first adjusting unit 230 is configured to adjust a normal working rotation speed range of the compressor according to the data analysis result, so that noise intensity or vibration intensity of the compressor after the normal working rotation speed range is adjusted is less than or equal to a corresponding specified threshold.
Alternatively, the compressor noise vibration control apparatus 200 may further include a setting unit, a driving unit, and a second adjusting unit;
the setting unit is used for setting the working parameters related to the compressor during working, wherein the working parameters comprise at least one of the ambient temperature, the rotating speed of an air conditioner cooling fan, the temperature of an air conditioner and the rotating speed of an in-vehicle blower;
the driving unit is used for driving the compressor so that the compressor runs at a preset rotating speed;
the second adjusting unit is used for adjusting at least one of the ambient temperature, the rotating speed of the air conditioner cooling fan, the temperature of the air conditioner and the rotating speed of the in-vehicle blower so that the pressure of the vehicle-mounted air conditioning system reaches a preset limit value to serve as the preset environment.
Optionally, the acquisition unit 210 may also be configured to:
controlling the compressor to run from the lowest design rotation speed to the highest design rotation speed at a constant speed;
and acquiring the noise vibration data through the pre-deployed sensing assembly in the process of increasing the rotating speed of the compressor.
Alternatively, the determining unit 220 may be further configured to:
generating a corresponding colormap and an order slice according to the noise vibration data;
identifying a main order of the compressor in the color map, and when the main order meets a resonance zone, the rotating speed range of the compressor corresponding to the current order;
identifying an amplitude range corresponding to the current rotating speed range through an order slice according to the rotating speed range;
and determining the noise intensity or the vibration intensity of the current order according to the amplitude range as the data analysis result.
Alternatively, the determining unit 220 may be further configured to:
and determining the maximum value in the amplitude range as the noise intensity or the vibration intensity, and taking the maximum value as the data analysis result.
Alternatively, the first adjustment unit 230 may also be configured to:
and deleting the working rotation speed corresponding to the noise intensity or the vibration intensity from the common working rotation speed range when the noise intensity or the vibration intensity exceeds the specified threshold in the data analysis result.
In this embodiment, the processing module may be an integrated circuit chip with signal processing capability. The processing module may be a general purpose processor. For example, the processor may be a central processing unit (Central Processing Unit, CPU), digital signal processor (Digital Signal Processing, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application.
The memory module may be, but is not limited to, random access memory, read only memory, programmable read only memory, erasable programmable read only memory, electrically erasable programmable read only memory, and the like. In this embodiment, the storage module may be configured to store noise vibration data, a data analysis policy, a data analysis result, a common operation rotation speed control logic of the compressor, a colormap, an order slice map, and the like. Of course, the storage module may also be used to store a program, and the processing module executes the program after receiving the execution instruction.
It will be appreciated that the electronic device structure shown in fig. 1 is only a schematic structural diagram, and that the electronic device may also include more components than those shown in fig. 1. The components shown in fig. 1 may be implemented in hardware, software, or a combination thereof.
It should be noted that, for convenience and brevity of description, specific working processes of the electronic device described above may refer to corresponding processes of each step in the foregoing method, and will not be described in detail herein.
Embodiments of the present application also provide a computer-readable storage medium. The computer-readable storage medium has stored therein a computer program which, when run on a computer, causes the computer to execute the compressor noise vibration control method as described in the above embodiments.
From the foregoing description of the embodiments, it will be apparent to those skilled in the art that the present application may be implemented in hardware, or by means of software plus a necessary general hardware platform, and based on this understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disc, a mobile hard disk, etc.), and includes several instructions to cause a computer device (may be a personal computer, a server, or a network device, etc.) to perform the methods described in the respective implementation scenarios of the present application.
In summary, the embodiments of the present application provide a method, an apparatus, an electronic device, and a storage medium for controlling noise vibration of a compressor. In the scheme, noise vibration data generated by the whole vehicle in a preset environment is collected through the sensing assembly. And then determining a data analysis result of the compressor in the whole vehicle according to the noise vibration data and through a preset data analysis strategy. And finally, according to the data analysis result, adjusting the normal working rotating speed range of the compressor, so that the noise intensity or vibration intensity of the compressor after the normal working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value. Therefore, the low-order noise vibration problem of the electric compressor caused by structural unbalance and exhaust pulsation is improved by frequency avoidance design of the rotating speed of the compressor when the compressor encounters the resonance band of the whole vehicle.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus, system, and method may be implemented in other manners as well. The above-described apparatus, systems, and method embodiments are merely illustrative, for example, flow charts 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 application. 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 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 which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. In addition, the functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. A method of controlling noise vibration of a compressor, the method comprising:
collecting noise vibration data generated by the whole vehicle in a preset environment through a sensing assembly, wherein the noise vibration data comprises at least one of ear side sound quantity of a driver, vibration acceleration of an exhaust port of a compressor, vibration acceleration of a seat guide rail and vibration acceleration of a steering wheel;
according to the noise vibration data, determining a data analysis result of a compressor in the whole vehicle through a preset data analysis strategy;
and adjusting the common working rotating speed range of the compressor according to the data analysis result, so that the noise intensity or vibration intensity of the compressor after the common working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value.
2. The method of claim 1, wherein prior to collecting noise vibration data generated by the whole vehicle in a preset environment by the sensing assembly, the method further comprises:
setting relevant working parameters of the compressor during working, wherein the working parameters comprise at least one of ambient temperature, the rotating speed of an air conditioner cooling fan, the temperature of an air conditioner and the rotating speed of an in-vehicle blower;
driving the compressor such that the compressor operates at a preset rotational speed;
and adjusting at least one of the environment temperature, the rotating speed of the air conditioner cooling fan, the temperature of the air conditioner and the rotating speed of the in-vehicle blower to enable the pressure of the vehicle-mounted air conditioning system to reach a preset limit value to serve as the preset environment.
3. The method of claim 1, wherein collecting noise vibration data generated by the whole vehicle in a predetermined environment by the sensing assembly comprises:
controlling the compressor to run from the lowest design rotation speed to the highest design rotation speed at a constant speed;
and acquiring the noise vibration data through the pre-deployed sensing assembly in the process of increasing the rotating speed of the compressor.
4. The method of claim 1, wherein determining, according to the noise vibration data, a data analysis result of a compressor in the whole vehicle through a preset data analysis strategy, comprises:
generating a corresponding colormap and an order slice according to the noise vibration data;
identifying a main order of the compressor in the color map, and when the main order meets a resonance zone, the rotating speed range of the compressor corresponding to the current order;
identifying an amplitude range corresponding to the current rotating speed range through an order slice according to the rotating speed range;
and determining the noise intensity or the vibration intensity of the current order according to the amplitude range as the data analysis result.
5. The method of claim 4, wherein determining the noise intensity or vibration intensity of the current order as the data analysis result from the amplitude range comprises:
and determining the maximum value in the amplitude range as the noise intensity or the vibration intensity, and taking the maximum value as the data analysis result.
6. The method of claim 4, wherein adjusting a common operating speed range of the compressor based on the data analysis results comprises:
and deleting the working rotation speed corresponding to the noise intensity or the vibration intensity from the common working rotation speed range when the noise intensity or the vibration intensity exceeds the specified threshold in the data analysis result.
7. A compressor noise vibration control apparatus, the apparatus comprising:
the acquisition unit is used for acquiring noise vibration data generated by the whole vehicle in a preset environment through the sensing assembly, wherein the noise vibration data comprises at least one of ear side sound quantity of a driver, vibration acceleration of an exhaust port of a compressor, vibration acceleration of a seat guide rail and vibration acceleration of a steering wheel;
the determining unit is used for determining a data analysis result of the compressor in the whole vehicle according to the noise vibration data and through a preset data analysis strategy;
and the first adjusting unit is used for adjusting the common working rotating speed range of the compressor according to the data analysis result, so that the noise intensity or vibration intensity of the compressor after the common working rotating speed range is adjusted is smaller than or equal to a corresponding specified threshold value.
8. The apparatus of claim 7, wherein the apparatus further comprises:
the setting unit is used for setting the working parameters related to the compressor during working, wherein the working parameters comprise at least one of the ambient temperature, the rotating speed of an air conditioner cooling fan, the temperature of an air conditioner and the rotating speed of an in-vehicle blower;
a driving unit for driving the compressor such that the compressor operates at a preset rotational speed;
and the second adjusting unit is used for adjusting at least one of the ambient temperature, the rotating speed of the air conditioner cooling fan, the temperature of the air conditioner and the rotating speed of the in-vehicle blower so that the pressure of the vehicle-mounted air conditioning system reaches a preset limit value to serve as the preset environment.
9. An electronic device comprising a processor and a memory coupled to each other, the memory storing a computer program that, when executed by the processor, causes the electronic device to perform the method of any of claims 1-6.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when run on a computer, causes the computer to perform the method according to any of claims 1-6.
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| CN202310179481.6A CN116357575A (en) | 2023-02-28 | 2023-02-28 | Compressor noise vibration control method and device, electronic equipment and storage medium |
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| CN202310179481.6A CN116357575A (en) | 2023-02-28 | 2023-02-28 | Compressor noise vibration control method and device, electronic equipment and storage medium |
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