Modal-based cantilever piece evaluation method, device, equipment, medium and product

Abstract

The invention discloses a cantilever piece evaluation method, device and equipment based on modality, a medium and a product, and relates to the field of automobiles. The method comprises the steps of determining a load of a second vehicle based on vibration road spectrum data of a cantilever part of a first vehicle and a whole vehicle system modal frequency response function of the second vehicle; the second vehicle is a vehicle with the same configuration as the first vehicle; determining a frequency-response function of a legacy component of the second vehicle; updating the cantilever part of the second vehicle to be a target cantilever part, and determining a frequency response function of the target cantilever part of the second vehicle; determining vibration response data of a target cantilever part of the second vehicle based on the load of the second vehicle, the frequency response function of the target cantilever part of the second vehicle and the frequency response function of the remaining part of the second vehicle; and determining the target cantilever piece of the first vehicle based on the vibration response data of the target cantilever piece of the second vehicle. According to the embodiment of the invention, the prediction efficiency of the vibration data of the vehicle cantilever part can be improved.

Description

Technical Field

[0001] The present invention relates to the automotive field, and in particular to a modal-based cantilever evaluation method, device, equipment, medium and product. Background Art

[0002] In practice, we often encounter various issues with cantilever components in user vehicles, such as cracking and failure. Some, like the battery frames of new energy vehicles, impact battery reliability, and their strength is particularly critical. During this process, we visit the user's site to collect vibration loads on the vehicle's cantilever components. Simultaneously, we modify the cantilever components' structure, requiring us to predict the vibration loads of the new structure. Existing techniques can utilize simulation technology to build a comprehensive vehicle model and verify it with relevant operating data. However, this model has limited accuracy, resulting in low prediction accuracy and large errors. Summary of the Invention

[0003] The present invention provides a modal-based cantilever evaluation method, device, equipment, medium and product to solve the problem of poor vibration data prediction effect for vehicle cantilever parts.

[0004] According to one aspect of the present invention, a modal-based cantilever evaluation method is provided, comprising:

[0005] Determining a load on the second vehicle based on vibration road spectrum data of the cantilever of the first vehicle and a vehicle system modal frequency response function of the second vehicle; the second vehicle has the same configuration as the first vehicle;

[0006] determining a frequency response function of the legacy component of the second vehicle;

[0007] Updating the cantilever of the second vehicle to a target cantilever, and determining a frequency response function of the target cantilever of the second vehicle;

[0008] determining vibration response data of a target cantilever of the second vehicle based on the load of the second vehicle, the frequency response function of the target cantilever of the second vehicle, and the frequency response function of a legacy component of the second vehicle;

[0009] A target suspension of the first vehicle is determined based on the vibration response data of the target suspension of the second vehicle.

[0010] According to another aspect of the present invention, there is provided a modal-based cantilever evaluation device, comprising:

[0011] a load determination module, configured to determine a load on a second vehicle based on vibration road spectrum data of a cantilever member of the first vehicle and a modal frequency response function of a whole vehicle system of the second vehicle; the second vehicle being a vehicle with the same configuration as the first vehicle;

[0012] a legacy component frequency response function determination module, configured to determine a frequency response function of a legacy component of a second vehicle;

[0013] a target cantilever frequency response function determination module, configured to update the cantilever of the second vehicle to the target cantilever and determine the frequency response function of the target cantilever of the second vehicle;

[0014] a target cantilever vibration response determination module, configured to determine vibration response data of a target cantilever of the second vehicle based on the load of the second vehicle, a frequency response function of the target cantilever of the second vehicle, and a frequency response function of a legacy component of the second vehicle;

[0015] The first vehicle suspension member determination module is configured to determine a target suspension member of the first vehicle based on the vibration response data of the target suspension member of the second vehicle.

[0016] According to another aspect of the present invention, an electronic device is provided, comprising:

[0017] At least one processor; and a memory in communication with 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 to enable the at least one processor to perform the modal-based cantilever assessment method described in any embodiment of the present invention.

[0018] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the modal-based cantilever evaluation method according to any embodiment of the present invention when executed.

[0019] According to another aspect of the present invention, a computer program product is provided, comprising a computer program / instruction, which, when executed by a processor, implements the modal-based cantilever evaluation method according to any embodiment of the present invention.

[0020] The embodiment of the present invention uses the whole vehicle modal frequency response function of the second vehicle and the vibration road spectrum data of the first vehicle to complete the calculation of the vibration response data of the target cantilever in a simulation environment. The vibration response of the target cantilever can be predicted without conducting actual vehicle road testing on the target cantilever. The vibration response data of the cantilever can be accurately determined, significantly reducing testing costs and improving the evaluation efficiency of the cantilever.

[0021] 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 intended 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

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a flow chart of a modal-based cantilever evaluation method provided by an embodiment of the present invention;

[0024] Figure 2 is a flow chart of another modal-based cantilever evaluation method provided by an embodiment of the present invention;

[0025] Figure 3 1 is a schematic structural diagram of a modal-based cantilever evaluation device provided in an embodiment of the present invention;

[0026] Figure 4 3 is a schematic structural diagram of an electronic device for implementing the modal-based cantilever evaluation method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate 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 "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] 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 relevant data such as vibration road spectrum data are in compliance with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0030] Figure 1 This is a flow chart of a modal-based cantilever evaluation method provided by an embodiment of the present invention. This embodiment is applicable to the evaluation of cantilever parts of a vehicle. The method can be performed by a modal-based cantilever evaluation device, which can be implemented in the form of hardware and / or software. The device can be configured in an electronic device with corresponding data processing capabilities, such as a server. Figure 1 As shown, the method includes:

[0031] S110. Determine the load of the second vehicle based on the vibration road spectrum data of the cantilever of the first vehicle and the modal frequency response function of the entire vehicle system of the second vehicle; the second vehicle is a vehicle with the same configuration as the first vehicle.

[0032] Among them, the cantilever is the cantilever structure in the vehicle suspension system. The cantilever is used to connect the wheels and the frame, and plays the role of transmitting force and torque to ensure the smooth driving of the vehicle. The vibration road spectrum data refers to the frequency spectrum data of the vibration excitation to the cantilever during actual driving. The vibration road spectrum data of the cantilever can reflect the vibration characteristics of the cantilever under different road conditions. The modal frequency response function of the whole vehicle system is a function that describes the response characteristics of each mode of the whole vehicle structure to different frequency excitations under dynamic loads. The modal frequency response function of the whole vehicle system can be excited by an exciter or a hammer, picked up by a three-dimensional acceleration sensor, and solved by modal analysis software. The load of the second vehicle is the equivalent force set acting on the tire rim of the second vehicle by the road surface.

[0033] Specifically, the first vehicle and the second vehicle have the same configuration, and the load of the second vehicle can be calculated using a load calculation formula based on the vibration road spectrum data of the cantilever of the first vehicle and the modal frequency response function of the entire vehicle system of the second vehicle.

[0034] S120: Determine a frequency response function of a legacy component of the second vehicle.

[0035] The legacy components are all vehicle components in the complete vehicle system, excluding the cantilever. The frequency response function (FRF) of the second vehicle's legacy components describes their dynamic response characteristics to excitations at different frequencies. By determining the FRF of the legacy components individually, the influence of the cantilever on system vibration can be precisely isolated, avoiding interference from multiple components coupled together.

[0036] S130: Update the cantilever of the second vehicle to the target cantilever, and determine the frequency response function of the target cantilever of the second vehicle.

[0037] The target cantilever is an improved cantilever originally configured on the vehicle. The frequency response function of the target cantilever of the second vehicle is a function that describes the dynamic response characteristics of the target cantilever of the second vehicle to excitations of different frequencies.

[0038] Specifically, the cantilever component of the second vehicle is updated to the target cantilever component, that is, the cantilever component of the second vehicle is replaced by the target cantilever component.

[0039] S140 : Determine vibration response data of the target cantilever of the second vehicle based on the load of the second vehicle, the frequency response function of the target cantilever of the second vehicle, and the frequency response function of the legacy component of the second vehicle.

[0040] The vibration response data of the cantilever of the second vehicle describes the dynamic behavior of the cantilever after being subjected to vibration excitation during the driving of the second vehicle. The data may include time-domain or frequency-domain signals such as displacement, velocity, and acceleration. The vibration response data can be used to evaluate the vibration performance of the cantilever.

[0041] Specifically, the vibration response data of the target cantilever of the second vehicle is calculated based on the load of the second vehicle, the frequency response function of the target cantilever of the second vehicle, and the frequency response function of the legacy component of the second vehicle.

[0042] S150 : Determine a target cantilever of the first vehicle based on the vibration response data of the target cantilever of the second vehicle.

[0043] Specifically, the vibration performance of the target cantilever can be determined based on the vibration response data of the target cantilever of the second vehicle. Since the first and second vehicles have the same configuration, the vibration performance of the target cantilever after replacing the cantilever of the first vehicle can be determined. This allows the target cantilever of the first vehicle to be determined based on the vibration response data of the target cantilever of the second vehicle. This effectively solves the problem of the difficulty of measuring the vibration performance of the replacement cantilever before the replacement of a vehicle's cantilever due to cracking and failure.

[0044] Optionally, before determining the load of the second vehicle based on the vibration road spectrum data of the cantilever of the first vehicle and the modal frequency response function of the entire vehicle system of the second vehicle, the method further includes:

[0045] Acquiring vibration road spectrum data of a cantilever component of a first vehicle in a collection device;

[0046] A frequency response function of a test point in the second vehicle is obtained, and a modal frequency response function of the entire vehicle system of the second vehicle is determined based on the frequency response function of the test point.

[0047] Specifically, vibration data from the cantilever of the first vehicle can be collected in real time using vibration collection equipment on the cantilever of the first vehicle during actual driving under the current user operating condition. The current user operating condition represents the current user's driving scenario. Test points are vibration-sensitive or critical transmission paths within the vehicle. The frequency response function of the test point in the second vehicle can be obtained, and the modal frequency response function of the entire vehicle system of the second vehicle can be determined based on the frequency response functions of all test points in the second vehicle.

[0048] Optionally, the test point includes at least one of a tire rim test point, a focus point of the cantilever itself, a connection interface point between the cantilever and the frame, a focus point of the target cantilever itself, and a connection interface point between the target cantilever and the frame.

[0049] The tire-rim test points refer to specific locations on the tire and rim selected during vehicle testing, used to install sensors to monitor parameters such as vibration and force. The focus points on the cantilever itself refer to key points on the cantilever. The interface points between the cantilever and the frame refer to points on the interface between the cantilever and the frame. The focus points on the target cantilever itself refer to key points on the target cantilever. The interface points between the target cantilever and the frame refer to points on the interface between the target cantilever and the frame. Flexible selection of these test points based on actual needs facilitates accurate evaluation of vehicle performance.

[0050] Optionally, for the test point, if the tire rim test point is represented as T, the focus point of the cantilever itself is represented as O, the connection interface point between the cantilever and the frame is represented as C1, the focus point of the target cantilever itself is represented as P, and the connection interface point between the target cantilever and the frame is represented as C2;

[0051] Then the modal frequency response function of the vehicle system can be expressed as:

[0052]

[0053] The first letter of the subscript of each element in the vehicle system modal frequency response function represents the response point, and the second letter represents the excitation point. In vibration testing, the excitation point refers to the location where the external excitation is applied, while the response point is the location where the system vibration response is measured. For example, The frequency response function is obtained by applying external excitation at the tire rim test point and testing the vibration response at the cantilever point of interest.

[0054] The load calculation formula can be expressed as:

[0055]

[0056] Among them, the + sign in the upper left corner of the matrix represents the generalized inverse; Xαo is used to represent the vibration road spectrum data of the vehicle's cantilever; F TUsed to represent the load of the vehicle.

[0057] Optionally, determining the target suspension member of the first vehicle based on the vibration response data of the target suspension member of the second vehicle includes:

[0058] When the vibration response data of the target cantilever of the second vehicle is equal to or greater than a preset threshold, the cantilever of the first vehicle is updated based on the target cantilever of the second vehicle, and the updated cantilever of the first vehicle is determined as the target cantilever of the first vehicle.

[0059] Specifically, when the vibration response data of the target cantilever of the second vehicle is equal to or greater than a preset threshold, it indicates that the vibration performance of the target cantilever meets the expected standard. A cantilever with the same structure as the target cantilever can be selected to update the cantilever of the first vehicle. The updated cantilever of the first vehicle is the target cantilever of the first vehicle.

[0060] In an embodiment of the present invention, the whole vehicle modal frequency response function of the second vehicle and the vibration road spectrum data of the first vehicle are used. The second vehicle has the same configuration as the first vehicle, so the vibration response of the target cantilever component can be predicted without conducting actual vehicle road testing on the target cantilever component, which significantly reduces testing costs and improves evaluation efficiency. The vibration response data of the target cantilever component of the second vehicle can be used to determine the design improvement direction of the cantilever component of the first vehicle, forming a closed-loop optimization. By separately determining the frequency response function of the legacy component, the influence of the cantilever component on the system vibration can be accurately isolated, avoiding the problem of multi-component coupling interference. By calculating the vibration response through the frequency response function, the resonance risk can be identified in advance, avoiding recalls or modifications caused by vibration problems in the actual vehicle stage, thereby improving the cantilever component evaluation efficiency while ensuring evaluation accuracy. It is particularly suitable for cantilever component evaluation scenarios under complex working conditions.

[0061] Figure 2 This is a flow chart of another modal-based cantilever evaluation method provided by an embodiment of the present invention. Based on the above embodiment, this embodiment further explains in detail “determining the frequency response function of the cantilever of the second vehicle”, “determining the frequency response function of the legacy component of the second vehicle”, “determining the vibration response data of the target cantilever of the second vehicle” and “determining the vibration response data of the target cantilever of the second vehicle”. Figure 2 As shown, the method includes:

[0062] S210. Determine the load of the second vehicle based on the vibration road spectrum data of the cantilever of the first vehicle and the modal frequency response function of the entire vehicle system of the second vehicle; the second vehicle is a vehicle with the same configuration as the first vehicle.

[0063] S220: Perform frequency response analysis on the cantilever of the second vehicle to determine a frequency response function of the cantilever of the second vehicle.

[0064] Specifically, a pre-set analysis software is used to perform a frequency response analysis on the cantilever, and the damping ratio is set to a value greater than 0.01 and less than 0.03. The specific damping ratio can be flexibly set according to actual needs. The test points include the focus point O of the cantilever itself and the connection interface point C1 between the cantilever and the frame. The frequency response function of the cantilever can be expressed as

[0065]

[0066] Among them, Hα is used to represent the frequency response function of the cantilever.

[0067] S230: Determine the frequency response function of the legacy component of the second vehicle based on the whole vehicle system modal frequency response function of the second vehicle and the frequency response function of the cantilever of the second vehicle.

[0068] Specifically, the frequency response function of the legacy component can be expressed as:

[0069]

[0070] Among them, H s-α The frequency response function used to represent the legacy component is represented by the tire rim test point as T, the focus point of the cantilever itself as O, the connection interface point between the cantilever and the frame as C1, and the connection interface point between the target cantilever and the frame as C2.

[0071] It should be noted that when the entire vehicle undergoes frequency response analysis, the cantilever is connected to the frame, and the connection interface point between the cantilever and the frame actually exists. For example, this connection interface point is A. When the cantilever is analyzed separately, the connection interface point between the cantilever and the frame will remain on the cantilever side, indicating that the cantilever has connection interface point A with the frame. Similarly, when the legacy component is analyzed separately, the connection interface point between the cantilever and the frame will remain on the legacy component side, indicating that the legacy component has connection interface point A with the cantilever. It is understood that when two objects are connected, a connection point is created between them. Even if the two objects are separated, the specific location of this connection point still exists on both objects.

[0072] Since the modal frequency response function of the vehicle system can be expressed as:

[0073]

[0074] And the frequency response function of the cantilever can be expressed as

[0075]

[0076] but

[0077]

[0078] S240: Update the cantilever of the second vehicle to the target cantilever, and determine the frequency response function of the target cantilever of the second vehicle.

[0079] Optionally, determining the frequency response function of the target cantilever of the second vehicle includes: performing frequency response analysis on the focus point of the target cantilever of the second vehicle and the connection interface point between the target cantilever and the frame to determine the frequency response function of the target cantilever of the second vehicle.

[0080] Specifically, a frequency response analysis of the target cantilever is performed using pre-set analysis software. The damping ratio is set to a value greater than 0.01 and less than 0.03. The specific damping ratio can be flexibly set according to actual needs. The test points include the focus point P of the target cantilever itself and the connection interface point C2 between the target cantilever and the frame. The frequency response function of the target cantilever can be expressed as:

[0081]

[0082] Among them, H β Used to represent the frequency response function of the target cantilever.

[0083] S250 : Determine vibration response data of the target suspension component of the second vehicle based on the load of the second vehicle, the frequency response function of the target suspension component of the second vehicle, and the frequency response function of the legacy component of the second vehicle.

[0084] Specifically, the vibration response data of the target cantilever can be expressed as:

[0085]

[0086] in, Used to represent the vibration response data of the target cantilever.

[0087] S260 : Determine the target cantilever of the first vehicle based on the vibration response data of the target cantilever of the second vehicle.

[0088] The present invention uses the vehicle modal frequency response function of a second vehicle and the vibration road spectrum data of a first vehicle. The second vehicle has the same configuration as the first vehicle, so the vibration response of the target cantilever component can be predicted without conducting actual vehicle road testing, significantly reducing testing costs and improving evaluation efficiency. The vibration response data of the target cantilever component of the second vehicle can be used to determine the improvement direction of the cantilever component of the first vehicle, forming a closed-loop optimization. By separately determining the frequency response function of the legacy component, the impact of the cantilever component on the system vibration can be accurately isolated, avoiding the problem of multi-component coupling interference. Calculating the vibration response based on the frequency response function can identify resonance risks in advance, avoiding recalls or modifications caused by vibration problems during the actual vehicle phase. This improves the efficiency of cantilever component evaluation while ensuring evaluation accuracy. The invention is particularly suitable for cantilever component evaluation scenarios under complex working conditions and solves the problem of poor vibration data prediction of vehicle cantilever components. Technicians can quickly replace the target cantilever component and calculate its vibration response, predicting the vibration effect of the target cantilever component when used in the actual vehicle, optimizing the cantilever component development process and promoting innovation in the cantilever component R&D model through data-driven and simulation technology.

[0089] Figure 3 FIG is a schematic structural diagram of a modal-based cantilever evaluation device provided by an embodiment of the present invention. Figure 3 As shown, the device includes:

[0090] The load determination module 310 is configured to determine the load of the second vehicle based on the vibration road spectrum data of the cantilever of the first vehicle and the modal frequency response function of the entire vehicle system of the second vehicle; the second vehicle has the same configuration as the first vehicle;

[0091] a legacy component frequency response function determination module 320 for determining a frequency response function of a legacy component of the second vehicle;

[0092] a target cantilever frequency response function determination module 330 , configured to update the cantilever of the second vehicle to the target cantilever and determine the frequency response function of the target cantilever of the second vehicle;

[0093] a target cantilever vibration response determination module 340 for determining vibration response data of the target cantilever of the second vehicle based on the load of the second vehicle, the frequency response function of the target cantilever of the second vehicle, and the frequency response function of the legacy component of the second vehicle;

[0094] The first vehicle cantilever determination module 350 is configured to determine a target cantilever of the first vehicle based on the vibration response data of the target cantilever of the second vehicle.

[0095] In an embodiment of the present invention, the whole vehicle modal frequency response function of the second vehicle and the vibration road spectrum data of the first vehicle are used. The second vehicle has the same configuration as the first vehicle, so the vibration response of the target cantilever component can be predicted without conducting actual vehicle road testing on the target cantilever component, which significantly reduces testing costs and improves evaluation efficiency. The vibration response data of the target cantilever component of the second vehicle can be used to determine the design improvement direction of the cantilever component of the first vehicle, forming a closed-loop optimization. By separately determining the frequency response function of the legacy component, the influence of the cantilever component on the system vibration can be accurately isolated, avoiding the problem of multi-component coupling interference. By calculating the vibration response through the frequency response function, the resonance risk can be identified in advance, avoiding recalls or modifications caused by vibration problems in the actual vehicle stage, thereby improving the cantilever component evaluation efficiency while ensuring evaluation accuracy. It is particularly suitable for cantilever component evaluation scenarios under complex working conditions.

[0096] The modal-based cantilever evaluation device provided in the embodiment of the present invention can execute the modal-based cantilever evaluation method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0097] Optionally, the device also includes: an acquisition module, used to obtain the vibration road spectrum data of the cantilever of the first vehicle in the acquisition device; obtain the frequency response function of the test point in the second vehicle, and determine the modal frequency response function of the entire vehicle system of the second vehicle based on the frequency response function of the test point.

[0098] Optionally, the test point includes at least one of a tire rim test point, a focus point of the cantilever itself, a connection interface point between the cantilever and the frame, a focus point of the target cantilever itself, and a connection interface point between the target cantilever and the frame.

[0099] Optionally, the legacy component frequency response function determination module 320 includes: a cantilever component frequency response function determination unit, used to perform frequency response analysis on the cantilever component of the second vehicle to determine the frequency response function of the cantilever component of the second vehicle; and a legacy component frequency response function determination unit, used to determine the frequency response function of the legacy component of the second vehicle based on the whole vehicle system modal frequency response function of the second vehicle and the frequency response function of the cantilever component of the second vehicle.

[0100] Optionally, the target cantilever frequency response function determination module 330 is specifically configured to perform frequency response analysis on the focus points of the target cantilever of the second vehicle and the connection interface points between the target cantilever and the vehicle frame to determine the frequency response function of the target cantilever of the second vehicle.

[0101] Optionally, the first vehicle cantilever determination module 350 is specifically used to: when the vibration response data of the target cantilever of the second vehicle is equal to or greater than a preset threshold, update the cantilever of the first vehicle based on the target cantilever of the second vehicle, and determine the updated cantilever of the first vehicle as the target cantilever of the first vehicle.

[0102] The modal-based cantilever evaluation device further described can also execute the modal-based cantilever evaluation method provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0103] 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.

[0104] Figure 4 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0105] like Figure 4 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed 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. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0106] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a 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.

[0107] The processor 11 can be any general-purpose and / or specialized processing component 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 specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any other suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the modal-based cantilever assessment method.

[0108] In some embodiments, the modality-based cantilever assessment method can be implemented as a computer program that is tangibly contained 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 on 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 modality-based cantilever assessment method described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the modality-based cantilever assessment method in any other appropriate manner (e.g., by means of firmware).

[0109] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), 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 interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0110] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0111] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0112] 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 pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types 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).

[0113] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0114] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0115] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed 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. This is not limited herein.

[0116] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A modal-based cantilever evaluation method, characterized in that: The method comprises: Determining a load on the second vehicle based on vibration road spectrum data of the cantilever of the first vehicle and a vehicle system modal frequency response function of the second vehicle; the second vehicle has the same configuration as the first vehicle; determining a frequency response function of the legacy component of the second vehicle; Updating the cantilever of the second vehicle to a target cantilever, and determining a frequency response function of the target cantilever of the second vehicle; determining vibration response data of a target cantilever of the second vehicle based on the load of the second vehicle, the frequency response function of the target cantilever of the second vehicle, and the frequency response function of a legacy component of the second vehicle; A target suspension of the first vehicle is determined based on the vibration response data of the target suspension of the second vehicle.

2. The method according to claim 1, characterized in that Before determining the load of the second vehicle based on the vibration road spectrum data of the cantilever of the first vehicle and the modal frequency response function of the entire vehicle system of the second vehicle, the method further includes: Acquiring vibration road spectrum data of a cantilever component of a first vehicle in a collection device; A frequency response function of a test point in the second vehicle is obtained, and a vehicle system modal frequency response function of the second vehicle is determined based on the frequency response function of the test point.

3. The method according to claim 2, characterized in that The test points include at least one of a tire rim test point, a focus point of the cantilever itself, a connection interface point between the cantilever and the frame, a focus point of the target cantilever itself, and a connection interface point between the target cantilever and the frame.

4. The method according to claim 1, wherein Determining the frequency response function of the legacy component of the second vehicle includes: performing a frequency response analysis on the cantilever of the second vehicle to determine a frequency response function of the cantilever of the second vehicle; A frequency response function of a legacy component of the second vehicle is determined based on the full vehicle system modal frequency response function of the second vehicle and the frequency response function of the cantilever of the second vehicle.

5. The method according to claim 3, characterized in that Determining the frequency response function of the target cantilever of the second vehicle includes: Frequency response analysis is performed on the focus points of the target cantilever component of the second vehicle and the connection interface points between the target cantilever component and the vehicle frame to determine the frequency response function of the target cantilever component of the second vehicle.

6. The method according to claim 1, wherein The determining the target suspension member of the first vehicle based on the vibration response data of the target suspension member of the second vehicle includes: When the vibration response data of the target cantilever of the second vehicle is equal to or greater than a preset threshold, the cantilever of the first vehicle is updated based on the target cantilever of the second vehicle, and the updated cantilever of the first vehicle is determined as the target cantilever of the first vehicle.

7. A modal-based cantilever evaluation device, characterized in that: The device comprises: a load determination module, configured to determine a load on a second vehicle based on vibration road spectrum data of a cantilever member of the first vehicle and a modal frequency response function of a whole vehicle system of the second vehicle; the second vehicle being a vehicle with the same configuration as the first vehicle; a legacy component frequency response function determination module, configured to determine a frequency response function of a legacy component of a second vehicle; a target cantilever frequency response function determination module, configured to update the cantilever of the second vehicle to the target cantilever and determine the frequency response function of the target cantilever of the second vehicle; a target cantilever vibration response determination module, configured to determine vibration response data of a target cantilever of the second vehicle based on the load of the second vehicle, a frequency response function of the target cantilever of the second vehicle, and a frequency response function of a legacy component of the second vehicle; The first vehicle suspension member determination module is configured to determine a target suspension member of the first vehicle based on the vibration response data of the target suspension member of the second vehicle.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively coupled to the at least one processor; 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 to enable the at least one processor to perform the modal-based cantilever evaluation method according to any one of claims 1 to 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 a processor to implement the modal-based cantilever evaluation method according to any one of claims 1 to 6 when the computer instructions are executed. 10 . A computer program product comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements the modal-based cantilever evaluation method according to claim 1 .

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