CN114329821A - Method, device and equipment for optimizing compressor noise in NVH (noise, vibration and harshness) and storage medium - Google Patents

Method, device and equipment for optimizing compressor noise in NVH (noise, vibration and harshness) and storage medium Download PDF

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CN114329821A
CN114329821A CN202111514261.1A CN202111514261A CN114329821A CN 114329821 A CN114329821 A CN 114329821A CN 202111514261 A CN202111514261 A CN 202111514261A CN 114329821 A CN114329821 A CN 114329821A
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compressor
rotating speed
target
noise
actual
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李晓航
董向力
齐霁
宋占桌
车强
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FAW Bestune Car Co Ltd
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FAW Bestune Car Co Ltd
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Abstract

The invention belongs to the technical field of automobiles, and particularly relates to a method, a device, equipment and a storage medium for optimizing noise of a compressor in NVH (noise, vibration and harshness) based on a new energy vehicle. The method comprises the following steps: step one, calculating a target rotating speed of a compressor; step two, determining the actual rotating speed of the compressor after comparing the target rotating speed of the compressor with the limiting rotating speed of the compressor; step three, comparing the actual rotating speed of the compressor with the avoiding rotating speed of the compressor and then determining the actual corrected rotating speed of the compressor; and step four, outputting a rotating speed control instruction, and executing the control instruction by the compressor. According to the invention, the highest limit rotating speed of the compressor under different vehicle speeds and air blower gear working conditions is set through a table look-up method, so that a user cannot obviously sense the working noise and vibration of the compressor in a normal vehicle using stage, the rotating speed of the whole vehicle, which is caused by the working of the compressor, is found out, and the rotating speed is avoided, thereby achieving the purpose of optimizing NVH of the whole vehicle.

Description

Method, device and equipment for optimizing compressor noise in NVH (noise, vibration and harshness) and storage medium
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a method, a device, equipment and a storage medium for optimizing noise of a compressor in NVH (noise, vibration and harshness) based on a new energy vehicle.
Background
With the great popularization of new energy vehicles, the NVH of the whole vehicle cabin is controlled by turning engine noise to noise of electric drive components such as a compressor, a motor and the like. The mechanical noise generated when the compressor works is one of the main noise sources of the whole vehicle cabin, and how to reduce the working noise of the compressor is a problem to be solved.
Disclosure of Invention
The invention provides an optimization method, a device, equipment and a storage medium for compressor noise in NVH (noise, vibration and harshness) based on a new energy vehicle.
The technical scheme of the invention is described as follows by combining the attached drawings:
in a first aspect, an embodiment of the present invention provides a method for optimizing compressor noise in NVH, including the following steps:
step one, calculating a target rotating speed of a compressor;
step two, determining the actual rotating speed of the compressor after comparing the target rotating speed of the compressor with the limiting rotating speed of the compressor;
step three, comparing the actual rotating speed of the compressor with the avoiding rotating speed of the compressor and then determining the actual corrected rotating speed of the compressor;
and step four, outputting a rotating speed control instruction, and executing the control instruction by the compressor.
Further, the specific method of the first step is as follows:
the air conditioner control system calculates the target rotating speed r of the compressor according to the current refrigeration demandTarget；
Further, the specific method of the second step is as follows:
target rotating speed r of compressorTargetAnd the compressor limiting speed rLimit ofBy comparison, when r isTarget＜rLimit ofActual speed r of compressorPractice ofAccording to the target speed r of the compressorTargetRunning; when r isTarget≥rLimit ofActual speed r of compressorPractice ofLimiting the speed r according to the compressorLimit ofRunning;
wherein the compressor limits the rotational speed rLimit ofThis is obtained by looking up table 1.
TABLE 1
Figure BDA0003406301810000021
Further, the specific method of the third step is as follows:
the actual rotating speed r of the compressorPractice ofAvoiding the median value r of the rotating speed with the compressorInBy contrast, when rPractice of＜rInActual corrected speed r of compressorRepair theIs the lower limit value of the avoidance interval; when r isPractice of≥rInWhen r isRepair theIs the upper limit value of the avoidance interval;
and the lower limit value and the upper limit value of the avoidance interval are obtained by looking up a table 1.
In a second aspect, an embodiment of the present invention further provides an apparatus for optimizing compressor noise in NVH, which is used to implement a method for optimizing compressor noise in NVH, and includes:
a compressor target rotation speed calculation module for calculating the compressor target rotation speed rTarget；
The actual rotating speed calculation module of the compressor is used for calculating the actual rotating speed r of the compressorPractice of；
The actual corrected rotating speed calculation module of the compressor is used for calculating the actual corrected rotating speed r of the compressorRepair the；
And the compressor rotating speed execution module is used for executing the control command.
In a third aspect, an embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement a method for optimizing compressor noise in NVH according to any one of the embodiments of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement a method for optimizing compressor noise in NVH according to any one of the embodiments of the present invention.
The invention has the beneficial effects that:
according to the invention, the highest limit rotating speed of the compressor under different vehicle speeds and air blower gear working conditions is set through a table look-up method, so that a user cannot obviously sense the working noise and vibration of the compressor in a normal vehicle using stage, the rotating speed of the whole vehicle, which is caused by the working of the compressor, is found out, and the rotating speed is avoided, thereby achieving the purpose of NVH of the whole vehicle.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic flow chart illustrating a method for optimizing compressor noise in NVH according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an apparatus for optimizing compressor noise in NVH according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device in a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Fig. 1 is a flowchart of a method for optimizing compressor noise in NVH according to a first embodiment of the present invention, where the method may be implemented by an apparatus for optimizing compressor noise in NVH according to a second embodiment of the present invention, and the apparatus may be implemented in a software and/or hardware manner, as shown in fig. 1, the method specifically includes the following steps:
in a first aspect, an embodiment of the present invention provides a method for optimizing compressor noise in NVH, including the following steps:
step one, calculating a target rotating speed of a compressor;
the specific method comprises the following steps:
the air conditioner control system calculates the target rotating speed r of the compressor according to the current refrigeration demandTarget；
Step two, determining the actual rotating speed of the compressor after comparing the target rotating speed of the compressor with the limiting rotating speed of the compressor;
the method comprises the following specific steps:
target rotating speed r of compressorTargetAnd the compressor limiting speed rLimit ofBy comparison, when r isTarget＜rLimit ofActual speed r of compressorPractice ofAccording to the target speed r of the compressorTargetRunning; when r isTarget≥rLimit ofActual speed r of compressorPractice ofLimiting the speed r according to the compressorLimit ofRunning;
wherein the compressor limits the rotational speed rLimit ofThis is obtained by looking up table 1.
TABLE 1
Figure BDA0003406301810000041
Figure BDA0003406301810000051
Step three, comparing the actual rotating speed of the compressor with the avoiding rotating speed of the compressor and then determining the actual corrected rotating speed of the compressor;
the method comprises the following specific steps:
the actual rotating speed r of the compressorPractice ofAvoiding the median value r of the rotating speed with the compressorInBy contrast, when rPractice of＜rInActual corrected speed r of compressorRepair theIs the lower limit value of the avoidance interval; when r isPractice of≥rInWhen r isRepair theIs the upper limit value of the avoidance interval;
and the lower limit value and the upper limit value of the avoidance interval are obtained by looking up a table 1.
Step four, outputting a rotating speed control instruction, namely the actual corrected rotating speed r of the compressorRepair theThe compressor executes the control command.
Example two
Fig. 2 is a schematic structural diagram of an apparatus for optimizing compressor noise in NVH according to a second embodiment of the present invention. The apparatus can be implemented in software and/or hardware, and the apparatus can be integrated into any device that provides a function of a method for optimizing compressor noise in NVH, as shown in fig. 3, where the apparatus specifically includes:
a compressor target rotation speed calculation module for calculating the compressor target rotation speed rTarget；
The actual rotating speed calculation module of the compressor is used for calculating the actual rotating speed r of the compressorPractice of；
The actual corrected rotating speed calculation module of the compressor is used for calculating the actual corrected rotating speed r of the compressorRepair the；
And the compressor rotating speed execution module is used for executing the control command.
The product can execute the method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a computer device in a third embodiment of the present invention. FIG. 3 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in FIG. 3 is only an example and should not impose any limitation on the scope of use or functionality of embodiments of the present invention.
As shown in FIG. 3, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
Bus 18 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Computer device 12 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by computer device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 3, and commonly referred to as a "hard drive"). Although not shown in FIG. 3, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
Computer device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), with one or more devices that enable a user to interact with computer device 12, and/or with any devices (e.g., network card, modem, etc.) that enable computer device 12 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 22. In the computer device 12 of the present embodiment, the display 24 is not provided as a separate body but is embedded in the mirror surface, and when the display surface of the display 24 is not displayed, the display surface of the display 24 and the mirror surface are visually integrated. Also, computer device 12 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with the other modules of computer device 12 via bus 18. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The processing unit 16 executes various functional applications and data processing by running the program stored in the system memory 28, for example, implementing a method for optimizing compressor noise in NVH according to an embodiment of the present invention.
Example four
A fourth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a method for optimizing noise of a compressor in NVH, as provided in all embodiments of the present invention of the present application.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. 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 (a non-exhaustive list) of the computer readable storage medium would include the following: 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 context of this document, 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.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's 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 user's 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 is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (7)

1. A method for optimizing compressor noise in NVH (noise vibration and harshness) is characterized by comprising the following steps:
step one, calculating a target rotating speed of a compressor;
step two, determining the actual rotating speed of the compressor after comparing the target rotating speed of the compressor with the limiting rotating speed of the compressor;
step three, comparing the actual rotating speed of the compressor with the avoiding rotating speed of the compressor and then determining the actual corrected rotating speed of the compressor;
and step four, outputting a rotating speed control instruction, and executing the control instruction by the compressor.
2. The method as claimed in claim 1, wherein the specific method of the first step is as follows:
the air conditioner control system calculates the target rotating speed r of the compressor according to the current refrigeration demandTarget。
3. The method as claimed in claim 1, wherein the second step is performed by the following steps:
target rotating speed r of compressorTargetAnd the compressor limiting speed rLimit ofBy comparison, when r isTarget＜rLimit ofActual speed r of compressorPractice ofAccording to the target speed r of the compressorTargetRunning; when r isTarget≥rLimit ofActual speed r of compressorPractice ofLimiting the speed r according to the compressorLimit ofRunning;
wherein the compressor limits the rotational speed rLimit ofThis is obtained by looking up table 1.
TABLE 1
Figure FDA0003406301800000011
Figure FDA0003406301800000021
4. The method for optimizing compressor noise in NVH according to claim 1, wherein the specific method in the third step is as follows:
the actual rotating speed r of the compressorPractice ofAvoiding the median value r of the rotating speed with the compressorInBy contrast, when rPractice of＜rInActual corrected speed r of compressorRepair theIs the lower limit value of the avoidance interval; when r isPractice of≥rInWhen r isRepair theIs the upper limit value of the avoidance interval;
and the lower limit value and the upper limit value of the avoidance interval are obtained by looking up a table 1.
5. An apparatus for optimizing noise of a compressor in NVH (noise vibration and harshness) is used for realizing an optimization method of noise of the compressor in NVH, and is characterized by comprising:
a compressor target rotation speed calculation module for calculating the compressor target rotation speed rTarget；
The actual rotating speed calculation module of the compressor is used for calculating the actual rotating speed r of the compressorPractice of；
The actual corrected rotating speed calculation module of the compressor is used for calculating the actual corrected rotating speed r of the compressorRepair the；
And the compressor rotating speed execution module is used for executing the control command.
6. A computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement a method of optimizing compressor noise in NVH as claimed in any one of claims 1 to 4.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of optimizing compressor noise in NVH according to any one of claims 1 to 4.
CN202111514261.1A 2021-12-13 2021-12-13 Method, device and equipment for optimizing compressor noise in NVH (noise, vibration and harshness) and storage medium Pending CN114329821A (en)

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