Method, device and equipment for optimizing roar in van truck and storage medium

Abstract

The invention discloses an optimization method, device and equipment for roar in a van truck and a storage medium, and belongs to the technical field of noise optimization, and the method comprises the steps: obtaining engine data of a target van truck; wherein the engine data comprises the number of engine cylinders, the idling speed and the maximum speed; determining an excitation frequency band according to the engine data; according to the excitation frequency band and the in-vehicle roar influence factors, performing a simulation experiment on the container mode of the target-compartment truck to obtain a to-be-optimized vibration mode in the container mode; and area optimization is carried out on the vibration mode to be optimized, so that optimization of roar in the target compartment truck during accelerated driving is realized. According to the invention, the roar in the van truck during accelerated driving is reduced, and the comfort of the van truck is improved, so that the driving experience of a driver is improved, and the product competitiveness of the van truck is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of noise optimization, and particularly relates to an optimization method, device, equipment and storage medium for the interior booming sound of a van. Background Art

[0002] As customers' requirements for the comfort of commercial vehicles (such as buses and vans) are getting higher and higher, the NVH performance of commercial vehicles becomes increasingly important. The booming sound inside the vehicle during acceleration can cause a strong sense of oppression on the driver's eardrums, resulting in short-term stinging or stuffy feelings, which seriously affects the driver's driving experience. Whether there is booming sound inside the vehicle during acceleration is one of the important indicators of NVH performance, making how to optimize the interior booming sound of commercial vehicles during acceleration become a research direction that everyone is concerned about.

[0003] Currently, the existing optimization methods for the interior booming sound of commercial vehicles during acceleration cannot effectively optimize the interior booming sound of vans during acceleration, thus reducing the comfort of vans, affecting the driver's driving experience, and affecting the product competitiveness of vans. Summary of the Invention

[0004] The present invention provides an optimization method, device, equipment and storage medium for the interior booming sound of a van to improve the comfort of the van, thereby enhancing the driver's driving experience and the product competitiveness of the van.

[0005] According to one aspect of the present invention, an optimization method for the interior booming sound of a van is provided. The method includes:

[0006] Obtaining the engine data of a target van; wherein the engine data includes the number of engine cylinders, the idle speed and the maximum speed;

[0007] Determining an excitation frequency band according to the engine data;

[0008] Performing a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of the interior booming sound to obtain the vibration mode to be optimized in the cargo box mode;

[0009] Performing area optimization on the vibration mode to be optimized to optimize the interior booming sound of the target van during acceleration.

[0010] According to another aspect of the present invention, an optimization device for the interior booming sound of a van is provided. The device includes:

[0011] An engine data acquisition module for obtaining the engine data of a target van; wherein the engine data includes the number of engine cylinders, the idle speed and the maximum speed;

[0012] An excitation frequency band determination module, configured to determine an excitation frequency band according to engine data;

[0013] An undetermined vibration mode to be optimized determination module, configured to perform a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of the interior booming, so as to obtain the undetermined vibration mode to be optimized in the cargo box mode;

[0014] An undetermined vibration mode optimization module, configured to perform area optimization on the undetermined vibration mode to be optimized, so as to optimize the interior booming sound of the target van during acceleration.

[0015] According to another aspect of the present invention, there is provided an electronic device, where the electronic device includes:

[0016] At least one processor; and

[0017] A memory communicatively connected to the at least one processor; wherein,

[0018] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the optimization method for the interior booming sound of the van according to any embodiment of the present invention.

[0019] According to another aspect of the present invention, there is provided a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the optimization method for the interior booming sound of the van according to any embodiment of the present invention when executed by a processor.

[0020] According to another aspect of the present invention, there is provided a computer program product, including a computer program, and the computer program implements the optimization method for the interior booming sound of the van according to any embodiment of the present invention when executed by a processor.

[0021] The technical solution of the embodiment of the present invention includes obtaining the engine data of the target van; wherein, the engine data includes the number of engine cylinders, the idle speed, and the maximum speed; determining the excitation frequency band according to the engine data; performing a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of the interior booming, so as to obtain the undetermined vibration mode to be optimized in the cargo box mode; performing area optimization on the undetermined vibration mode to be optimized, so as to optimize the interior booming sound of the target van during acceleration. The above technical solution reduces the interior booming sound of the van during acceleration and improves the comfort of the van by performing area optimization on the undetermined vibration mode to be optimized in the cargo box mode of the van within the common excitation frequency band of the van engine, thereby enhancing the driving experience of the driver and the product competitiveness of the van.

[0022] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 is a flowchart of an optimization method for the interior rumbling noise of a van according to Embodiment 1 of the present invention;

[0025] Figure 2A is a flowchart of an optimization method for the interior rumbling noise of a van according to Embodiment 2 of the present invention;

[0026] Figure 2B is a comparison chart of the noise at the right ear of the driver of the target van before and after optimization according to Embodiment 2 of the present invention;

[0027] Figure 3 is a schematic structural diagram of an optimization device for the interior rumbling noise of a van according to Embodiment 3 of the present invention;

[0028] Figure 4 is a schematic structural diagram of an electronic device for implementing the optimization method of the interior rumbling noise of a van in the embodiments of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to enable those skilled in the art to better understand the solutions of the present invention, the following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] It should be noted that in the description and claims of the present invention and the above-mentioned drawings, terms such as "target", "first", and "second" are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data used can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0031] In addition, it should be noted that in the technical solution of the present invention, the collection, storage, use, processing, transmission, provision, and disclosure of factors affecting the in-vehicle roar, etc., all comply with the provisions of relevant laws and regulations and do not violate public order and good customs.

[0032] Embodiment 1

[0033] Figure 1 FIG. is a flowchart of an optimization method for the in-vehicle roar of a van provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of optimizing the in-vehicle roar of a van during accelerating driving. This method can be executed by an optimization device for the in-vehicle roar of a van, and this device can be implemented in the form of hardware and / or software and can be configured in an electronic device. As Figure 1 shown, this method includes:

[0034] S101. Obtain the engine data of the target van; wherein, the engine data includes the number of engine cylinders, the idle speed, and the maximum speed.

[0035] Among them, the target van refers to a van for which the in-vehicle roar during accelerating driving needs to be optimized. The engine data refers to the data related to the engine of the target van. The number of engine cylinders refers to the number of cylinders of the engine of the target van. The idle speed refers to the rotational speed of the engine of the target van when it is idling and running stably. The maximum speed refers to the highest rotational speed that the engine of the target van can reach during normal operation.

[0036] Specifically, the engine data of the target van can be obtained from the assembly information of the target van.

[0037] S102. Determine the excitation frequency band according to the engine data.

[0038] Among them, the excitation frequency refers to the frequency of the periodic force or vibration generated when the engine of the target van is working.

[0039] Specifically, the lower excitation frequency of the excitation frequency band can be determined based on the number of engine cylinders and the idle speed; the upper excitation frequency of the excitation frequency band can be determined based on the number of engine cylinders and the maximum speed. More specifically, based on the number of engine cylinders and the idle speed, the lower excitation frequency of the excitation frequency band is determined through the following first excitation frequency determination formula:

[0040]

[0041] where z represents the number of engine cylinders; n1 represents the idle speed; f1 represents the lower excitation frequency of the excitation frequency band. Based on the number of engine cylinders and the maximum speed, the upper excitation frequency of the excitation frequency band is determined through the following second excitation frequency determination formula:

[0042]

[0043] where z represents the number of engine cylinders; n2 represents the maximum speed; f2 represents the upper excitation frequency of the excitation frequency band.

[0044] Exemplarily, if the number of cylinders of the target van's engine is 6, the idle speed is 700 revolutions per minute (i.e., 700 rpm), and the maximum speed is 2400 rpm, then the lower excitation frequency of the excitation frequency band is 35 Hz, that is The upper excitation frequency of the excitation frequency band is 120 Hz, that is The excitation frequency band is [35 Hz, 120 Hz].

[0045] S103. According to the excitation frequency band and the in-vehicle booming influencing factors, a simulation experiment is carried out on the cargo box mode of the target van to obtain the vibration mode to be optimized in the cargo box mode.

[0046] Among them, the in-vehicle booming influencing factors refer to the factors that affect the in-vehicle booming sound of the target van during acceleration; optionally, the in-vehicle booming influencing factors include the resonance of the cargo box sheet metal. Among them, the resonance of the cargo box sheet metal refers to the resonance phenomenon that occurs in the sheet metal inside the cargo box of the target van under specific conditions. It should be noted that the in-vehicle booming influencing factors may include, in addition to the resonance of the cargo box sheet metal, the resonance of the acoustic cavity mode, the local resonance of the cab, the resonance of the powertrain, the poor vibration isolation of the engine mount, the poor vibration isolation of the cab mount, the vibration noise of the engine body, and the intake and exhaust noise, etc. The cargo box mode refers to the inherent vibration characteristics of the cargo box of the target van. The vibration mode to be optimized refers to the vibration mode that needs to be optimized in terms of area.

[0047] Specifically, the excitation frequency band and the in-vehicle booming influencing factors can be input into the acceleration simulation model. Through the acceleration simulation model, a simulation experiment on the cargo box mode of the target van is carried out to obtain the vibration mode to be optimized under the cargo box mode. Among them, the acceleration simulation model refers to a model used to predict the in-vehicle booming sound of the target van during acceleration; optionally, the acceleration simulation model can be preset according to the experience of those skilled in the art, and the embodiments of the present invention do not make specific limitations on it.

[0048] S104. Optimize the area of the vibration mode to be optimized to optimize the in-vehicle booming sound of the target van during acceleration.

[0049] Specifically, the cargo box wall area covered by the vibration mode area of the vibration mode to be optimized can be used as the target area; the area of the vibration mode to be optimized is optimized by adding a reinforcing plate in the target area, thereby reducing the in-vehicle booming sound of the target van during acceleration and realizing the optimization of the in-vehicle booming sound of the target van during acceleration.

[0050] The technical solution of the embodiment of the present invention obtains the engine data of the target van; among them, the engine data includes the number of engine cylinders, the idle speed and the maximum speed; according to the engine data, the excitation frequency band is determined; according to the excitation frequency band and the in-vehicle booming influencing factors, a simulation experiment on the cargo box mode of the target van is carried out to obtain the vibration mode to be optimized under the cargo box mode; the area of the vibration mode to be optimized is optimized to optimize the in-vehicle booming sound of the target van during acceleration. The above technical solution reduces the in-vehicle booming sound of the van during acceleration by optimizing the area of the vibration mode to be optimized under the cargo box mode of the van within the common excitation frequency band of the van engine, improves the comfort of the van, thereby enhancing the driving experience of the driver and the product competitiveness of the van.

[0051] Embodiment Two

[0052] Figure 2A The flowchart of an optimization method for the in-vehicle booming sound of a van provided by the second embodiment of the present invention. On the basis of the above embodiment, this embodiment further optimizes "performing a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the in-vehicle booming influencing factors to obtain the vibration mode to be optimized under the cargo box mode", and provides an optional implementation solution. It should be noted that for the parts not detailed in the embodiments of the present invention, reference can be made to the relevant descriptions of other embodiments. As Figure 2A shown, the method includes:

[0053] S201. Obtain the engine data of the target van; among them, the engine data includes the number of engine cylinders, the idle speed and the maximum speed.

[0054] S202. Determine the excitation frequency band according to the engine data.

[0055] S203. According to the excitation frequency band and the influencing factors of the interior booming of the vehicle, conduct a simulation experiment on the cargo box mode of the target van to obtain the vibration mode under the cargo box mode.

[0056] Specifically, the excitation frequency band and the influencing factors of the interior booming of the vehicle can be input into the acoustic excitation cargo box mode test model, and the acoustic excitation cargo box mode test model is used to conduct a simulation experiment on the cargo box mode of the target van to obtain the vibration mode under the cargo box mode. Among them, the acoustic excitation cargo box mode test model refers to a model used to measure the modal parameters (such as modal vibration mode and damping ratio) of the cargo box structure of the target van; optionally, the acoustic excitation cargo box mode test model can be preset according to the experience of those skilled in the art, and the embodiments of the present invention do not make specific limitations thereto. It should be noted that the number of vibration modes under the cargo box mode is more than one.

[0057] S204. According to the vibration mode area threshold, screen out the vibration modes to be optimized from the vibration modes under the cargo box mode.

[0058] Among them, the vibration mode area threshold can be preset according to the experience of those skilled in the art. For example, the vibration mode area threshold can be 100 square centimeters (i.e., 100 cm 2 ), and the embodiments of the present invention do not make specific limitations thereto.

[0059] Specifically, calculate the vibration mode area of each vibration mode under the cargo box mode, and screen out the vibration modes with a vibration mode area greater than the vibration mode area threshold from the obtained vibration mode areas as the vibration modes to be optimized.

[0060] S205. Optimize the area of the vibration modes to be optimized to optimize the interior booming sound of the target van during acceleration.

[0061] Specifically, the area of the vibration modes to be optimized can be optimized by increasing the number of cargo box stiffeners of the target van, so that the vibration mode area of the vibration modes to be optimized is less than or equal to the vibration mode area threshold. Experiments have proved (see the comparison of the noise intensity at the right ear of the driver of the target van before and after optimization within 100 - 120 Hz in Figure 2B ), compared with the target van before the number of cargo box stiffeners is increased, the noise at the driver's ear of the target van during acceleration is reduced, that is, the interior booming sound of the target van during acceleration is reduced, thus optimizing the interior booming sound of the target van during acceleration. Among them, the cargo box stiffener refers to a rib or plate used to enhance the structural strength of the cargo box of the target van.

[0062] It should be noted that the natural frequency of the interior booming of the van during acceleration is in the range of 100 Hz to 120 Hz. Figure 2B In Figure 2BThe noise intensity at the right ear of the driver of the target van before and after optimization within the range of 100 - 120 Hz shows that the noise intensity at the right ear of the driver of the target van after optimization has decreased significantly.

[0063] Among them, by increasing the number of reinforcing ribs on the cargo box of the target van, area optimization is carried out on the vibration mode to be optimized. Specifically, it can be: according to the original type of reinforcing ribs on the cargo box of the target van, inside or outside the cargo box of the target van, a certain number of cargo box reinforcing ribs of the same type as the original reinforcing ribs are added to the target van, so that the vibration mode area of the vibration mode to be optimized is less than or equal to the vibration mode area threshold.

[0064] Among them, the original type of reinforcing ribs refers to the type of reinforcing ribs on the cargo box of the target van; optionally, the original type of reinforcing ribs can be unidirectional ribs, cross ribs, strip-shaped reinforcing ribs, well-shaped reinforcing ribs, fan-shaped reinforcing ribs, X-shaped reinforcing ribs or circular reinforcing ribs. Among them, unidirectional ribs are further divided into transverse ribs and longitudinal ribs.

[0065] Optionally, in order to increase the aesthetics of the target van, by increasing the number of reinforcing ribs on the cargo box of the target van, area optimization is carried out on the vibration mode to be optimized. Specifically, it can be: according to the original type of reinforcing ribs on the cargo box of the target van, inside the cargo box of the target van, a certain number of cargo box reinforcing ribs of the same type as the original reinforcing ribs are added to the target van, so that the vibration mode area of the vibration mode to be optimized is less than or equal to the vibration mode area threshold.

[0066] Optionally, in order to further reduce the rumbling sound inside the target van during acceleration, the distance between the cargo box and the cab of the target van can also be controlled to be more than 20 centimeters.

[0067] The technical solution of the embodiment of the present invention is to obtain the engine data of the target van; among them, the engine data includes the number of engine cylinders, idle speed and maximum speed; according to the engine data, the excitation frequency band is determined; according to the excitation frequency band and the influencing factors of the rumbling sound inside the vehicle, a simulation experiment is carried out on the cargo box mode of the target van to obtain the vibration mode in the cargo box mode; according to the vibration mode area threshold, the vibration mode to be optimized is screened out from the vibration modes in the cargo box mode; area optimization is carried out on the vibration mode to be optimized to realize the optimization of the rumbling sound inside the target van during acceleration. The above technical solution, within the common excitation frequency band of the van engine, by carrying out area optimization on the vibration mode to be optimized with a vibration mode area greater than the vibration mode area threshold in the cargo box mode of the van, so that the vibration mode area of the vibration mode to be optimized is less than or equal to the vibration mode area threshold, thereby reducing the rumbling sound inside the van during acceleration, improving the comfort of the van, and further enhancing the driving experience of the driver and the product competitiveness of the van.

[0068] Embodiment Three

[0069] Figure 3Schematic diagram of an optimization device for the interior rumbling sound of a van provided in Embodiment 3 of the present invention. This embodiment is applicable to the situation of optimizing the interior rumbling sound of a van during accelerating driving. The device can be implemented in the form of hardware and / or software and can be configured in an electronic device. As Figure 3 shown, the device includes:

[0070] An engine data acquisition module 301, configured to acquire engine data of a target van; wherein, the engine data includes the number of engine cylinders, idle speed, and maximum speed;

[0071] An excitation frequency band determination module 302, configured to determine an excitation frequency band according to the engine data;

[0072] A vibration mode to be optimized determination module 303, configured to perform a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of interior rumbling sound, and obtain the vibration mode to be optimized in the cargo box mode;

[0073] A vibration mode to be optimized optimization module 304, configured to optimize the area of the vibration mode to be optimized, so as to optimize the interior rumbling sound of the target van during accelerating driving.

[0074] The technical solution of the embodiment of the present invention acquires the engine data of the target van; wherein, the engine data includes the number of engine cylinders, idle speed, and maximum speed; determines the excitation frequency band according to the engine data; performs a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of interior rumbling sound, and obtains the vibration mode to be optimized in the cargo box mode; optimizes the area of the vibration mode to be optimized, so as to optimize the interior rumbling sound of the target van during accelerating driving. The above technical solution reduces the interior rumbling sound of the van during accelerating driving by optimizing the area of the vibration mode to be optimized in the cargo box mode within the common excitation frequency band of the van engine, improves the comfort of the van, thereby enhancing the driving experience of the driver and the product competitiveness of the van.

[0075] Optionally, the excitation frequency band determination module 302 is specifically configured to:

[0076] Determine the lower excitation frequency of the excitation frequency band according to the number of engine cylinders and the idle speed;

[0077] Determine the upper excitation frequency of the excitation frequency band according to the number of engine cylinders and the maximum speed.

[0078] Optionally, the influencing factors of interior rumbling sound include the resonance of the cargo box sheet metal.

[0079] Optionally, the vibration mode to be optimized determination module 303 is specifically configured to:

[0080] According to the excitation frequency band and the influencing factors of the interior booming of the vehicle, a simulation experiment on the cargo box mode of the target van is carried out to obtain the vibration mode under the cargo box mode;

[0081] According to the vibration mode area threshold, the vibration modes to be optimized are screened out from the vibration modes under the cargo box mode.

[0082] Optionally, the vibration mode optimization module 304 is specifically configured to:

[0083] By increasing the number of reinforcing ribs of the cargo box of the target van, the area of the vibration mode to be optimized is optimized so that the vibration mode area of the vibration mode to be optimized is less than or equal to the vibration mode area threshold.

[0084] Optionally, the device further includes:

[0085] The interval control module is used to control the interval between the cargo box of the target van and the cab to be more than 20 cm.

[0086] The optimization device for the interior booming sound of the van provided by the embodiment of the present invention can execute the optimization method for the interior booming sound of the van provided by any embodiment of the present invention, and has the corresponding function modules and beneficial effects for executing the optimization method for the interior booming sound of each van.

[0087] According to an embodiment of the present invention, the present invention further provides an electronic device, a readable storage medium, and a computer program product.

[0088] Embodiment 4

[0089] Figure 4 FIG. shows a schematic structural diagram of an electronic device 10 that can be used to implement the embodiments of the present invention. The electronic device is intended to represent various forms of digital computers, such as, a laptop computer, a desktop computer, a workbench, a personal digital assistant, a server, a blade server, a mainframe computer, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as, a personal digital processor, a cellular phone, a smart phone, a wearable device (such as a helmet, glasses, a watch, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are only examples and are not intended to limit the implementation of the present invention described herein and / or claimed.

[0090] As Figure 4As shown, the electronic device 10 includes at least one processor 11 and a memory communicatively connected to the at least one processor 11, such as read-only memory (ROM) 12, random access memory (RAM) 13, etc. The memory stores a computer program executable by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. The input / output (I / O) interface 15 is also connected to the bus 14.

[0091] Multiple components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, optical disc, etc.; and a communication unit 19, such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0092] The processor 11 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include but are not limited to a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for optimizing the rumbling sound inside the van.

[0093] In some embodiments, the method for optimizing the rumbling sound inside the van can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for optimizing the rumbling sound inside the van described above can be executed. Alternatively, in other embodiments, the processor 11 can be configured to execute the method for optimizing the rumbling sound inside the van by any other appropriate means (e.g., by means of firmware).

[0094] The various embodiments of the systems and techniques described above in this specification can be implemented in digital electronic circuitry, integrated circuit systems, 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), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that receives data and instructions from, and transmits data and instructions to, a storage system, at least one input device, and at least one output device.

[0095] The computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions / operations specified in the flowchart and / or block diagram to be implemented. The computer programs can be executed entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

[0096] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. 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 portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0097] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which the user can provide input to the electronic device. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0098] The systems and techniques described herein can be implemented in a computing system including backend components (e.g., as a data server), or a computing system including middleware components (e.g., an application server), or a computing system including frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system including any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected to each other by digital data communication in any form or medium (e.g., a communication network). Examples of communication networks include: local area network (LAN), wide area network (WAN), blockchain network, and the Internet.

[0099] The computing system can include a client and a server. The client and the server are generally far from each other and usually interact through a communication network. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system and solves the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services.

[0100] It should be understood that various forms of the processes shown above can be used, with steps reordered, added, or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0101] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An optimization method for the interior booming sound of a van, characterized in that, Including: Obtain the engine data of the target van; wherein, the engine data includes the number of engine cylinders, the idle speed, and the maximum speed; Determine the excitation frequency band according to the engine data; Conduct a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of the interior booming sound, and obtain the vibration mode to be optimized in the cargo box mode; Optimize the area of the vibration mode to be optimized to optimize the interior booming sound of the target van during acceleration.

2. The method according to claim 1, wherein The determining the excitation frequency band according to the engine data includes: Determine the lower excitation frequency of the excitation frequency band according to the number of engine cylinders and the idle speed; Determine the upper excitation frequency of the excitation frequency band according to the number of engine cylinders and the maximum speed.

3. The method according to claim 1, characterized in that The influencing factors of the interior booming sound include the resonance of the cargo box sheet metal.

4. The method according to claim 1, characterized in that, The conducting a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of the interior booming sound, and obtaining the vibration mode to be optimized in the cargo box mode includes: Conduct a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of the interior booming sound, and obtain the vibration mode in the cargo box mode; Screen out the vibration mode to be optimized from the vibration modes in the cargo box mode according to the vibration mode area threshold.

5. The method according to claim 4, wherein The optimizing the area of the vibration mode to be optimized includes: Optimize the area of the vibration mode to be optimized by increasing the number of reinforcing ribs of the cargo box of the target van, so that the vibration mode area of the vibration mode to be optimized is less than or equal to the vibration mode area threshold.

6. The method according to claim 1, characterized in that, The method further includes: Control the interval between the cargo box and the cab of the target van to be more than 20 cm.

7. An optimization device for the interior roaring sound of a van, characterized in that, Including: An engine data acquisition module, configured to acquire the engine data of the target van; wherein, the engine data includes the number of engine cylinders, the idle speed, and the maximum speed; An excitation frequency band determination module, configured to determine the excitation frequency band according to the engine data; A vibration mode to be optimized determination module, configured to conduct a simulation experiment on the cargo box mode of the target van according to the excitation frequency band and the influencing factors of the interior booming sound, and obtain the vibration mode to be optimized in the cargo box mode; A vibration mode to be optimized optimization module, configured to optimize the area of the vibration mode to be optimized to optimize the interior booming sound of the target van during acceleration.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the method for optimizing the interior booming sound of the van according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the processor to execute the method for optimizing the interior booming sound of the van according to any one of claims 1-6 when executed.

10. A computer program product, including a computer program, and the computer program realizes the method for optimizing the interior booming sound of the van according to any one of claims 1-6 when executed by a processor.

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