Vehicle endurance load calculation method and device, equipment and storage medium

Abstract

The invention discloses a vehicle endurance load calculation method, device and equipment and a storage medium, and the method comprises the steps: obtaining a working condition load file of a to-be-tested vehicle, and reading target information from the working condition load file; automatically compiling an excitation input file and calculating a working condition driving card according to the target information; driving a card to perform vehicle body durability simulation according to the excitation input file and the working condition calculation to obtain working condition durability load data; parameters of multiple working conditions can be automatically obtained at a time and submitted for calculation, manual duty is not needed, the working efficiency of durable load decomposition simulation is greatly improved, rapid decomposition of a durable road spectrum is achieved, the durability quality defects of parts can be recognized in advance, the cost of physical model machine physical verification can be reduced, and the working efficiency is improved. The method can be widely applied to project development, operation is stable and reliable, and the speed and efficiency of vehicle endurance load calculation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-body dynamics simulation, and in particular to a method, device, equipment and storage medium for calculating vehicle durability load. Background Art

[0002] The existing vehicle durability road spectrum analysis method is the whole vehicle four-wheel six-component force road spectrum load analysis method, including 1. whole vehicle four-wheel six-component force road spectrum test; 2. whole vehicle design data collection: 3. whole vehicle dynamics model establishment and adjustment: 4. virtual iteration: 5. wheel center Z-direction displacement acquisition: 6. whole vehicle load decomposition: 7. load result processing.

[0003] Its disadvantages are: the simulation cycle is long, each road spectrum needs to be iteratively simulated, the iterative simulation time is long, and the calculation process is highly dependent on the operational intervention of the simulation engineer; this runs counter to the trend of shortening the vehicle development cycle and is not suitable for the needs of rapid product development; and when the amount of durability road spectrum data is large, the decomposition simulation of the durability load has the disadvantages of large workload, simple and repetitive operations, and easy errors. Summary of the invention

[0004] The main purpose of the present invention is to provide a vehicle durability load calculation method, device, equipment and storage medium, aiming to solve the technical problems that the prior art runs counter to the trend of continuous shortening, is not suitable for the needs of rapid product development, and has disadvantages such as large workload, simple and repetitive operations, and easy errors when the amount of durable road spectrum data is large.

[0005] In a first aspect, the present invention provides a method for calculating a vehicle durable load, the method comprising the following steps:

[0006] Obtaining a working condition load file of the vehicle to be tested, and reading target information from the working condition load file;

[0007] Automatically compile an incentive input file and a calculation condition drive card according to the target information;

[0008] Car body durability simulation is performed according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0009] Optionally, the obtaining of a working condition load file of the vehicle to be tested and reading target information from the working condition load file includes:

[0010] Acquire road spectrum data collected by the vehicle to be tested on a durable road, and obtain working condition load files corresponding to different working conditions from the road spectrum data;

[0011] The target information is read from the working condition load file according to the information reading module.

[0012] Optionally, the reading target information from the working condition load file according to the information reading module includes:

[0013] According to the remote parameter control RPC encoding rules, the working condition file name, sampling frequency and data duration are read from the working condition load file through the information reading module, and the working condition file name, sampling frequency and data duration are used as target information.

[0014] Optionally, automatically compiling an incentive input file and a calculation condition drive card according to the target information includes:

[0015] Obtaining an excitation channel name, a working condition file path, and a working condition file name according to the target information;

[0016] Generate an excitation input file in an excitation input folder in a preset vehicle database according to the excitation channel name, the working condition file path, the working condition file name and the Adams software coding rule;

[0017] A calculation condition card command set file is generated according to the condition data duration information and the sampling frequency information in the target information, and a calculation condition drive card is generated according to the Adams software readable card format and the calculation condition card command set file.

[0018] Optionally, performing vehicle body durability simulation according to the excitation input file and the calculation working condition driving card to obtain working condition durability load data includes:

[0019] The vehicle body durability simulation is performed on the vehicle to be tested using a vehicle virtual prototype model according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0020] Optionally, the performing body durability simulation on the vehicle to be tested using a vehicle virtual prototype model according to the stimulus input file and the calculation working condition drive card to obtain working condition durability load data includes:

[0021] Select corresponding simulation experiment parameters according to the excitation input file and the calculation condition drive card;

[0022] Building a simulation experiment environment according to the simulation experiment parameters, and performing a vehicle body durability simulation experiment on the vehicle virtual prototype model in the simulation experiment environment;

[0023] The working condition durability load data is obtained through simulation calculation.

[0024] Optionally, obtaining the working condition durability load data by simulation calculation includes:

[0025] The durable loads of the kinematic joints of each component of the suspension and the body connection points of the vehicle to be tested are obtained through simulation calculation. After the simulation calculation is completed under each working condition, the durable loads under each working condition are obtained to generate working condition durable load data.

[0026] In a second aspect, in order to achieve the above-mentioned object, the present invention further provides a vehicle durable load calculation device, the vehicle durable load calculation device comprising:

[0027] An information reading module is used to obtain a working condition load file of the vehicle to be tested and read target information from the working condition load file;

[0028] A calculation module is prepared, which is used to automatically prepare an excitation input file and a calculation condition drive card according to the target information;

[0029] The durability simulation module is used to perform vehicle body durability simulation according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0030] In a third aspect, in order to achieve the above-mentioned purpose, the present invention also proposes a vehicle durable load calculation device, which includes: a memory, a processor, and a vehicle durable load calculation program stored in the memory and executable on the processor, and the vehicle durable load calculation program is configured to implement the steps of the vehicle durable load calculation method described above.

[0031] In a fourth aspect, in order to achieve the above-mentioned purpose, the present invention further proposes a storage medium, on which a vehicle durable load calculation program is stored, and when the vehicle durable load calculation program is executed by a processor, the steps of the vehicle durable load calculation method as described above are implemented.

[0032] The vehicle durability load calculation method proposed in the present invention obtains the working condition load file of the vehicle to be tested, reads the target information from the working condition load file; automatically compiles the incentive input file and the calculation working condition drive card according to the target information; performs vehicle body durability simulation according to the incentive input file and the calculation working condition drive card to obtain working condition durability load data; can automatically obtain parameters of multiple working conditions at one time and submit calculations without manual supervision, greatly improves the work efficiency of durability load decomposition simulation, realizes the rapid decomposition of durable road spectrum, can identify the durability performance defects of parts in advance, reduces the cost of physical prototype verification, can be widely used in project development, runs stably and reliably, and improves the speed and efficiency of vehicle durability load calculation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention;

[0034] Figure 2 It is a flow chart of the first embodiment of the method for calculating the vehicle durability load of the present invention;

[0035] Figure 3 A schematic diagram of a flow chart of a second embodiment of a method for calculating vehicle durability load according to the present invention;

[0036] Figure 4 A schematic flow chart of a third embodiment of a method for calculating vehicle durability load according to the present invention;

[0037] Figure 5 A schematic flow chart of a fourth embodiment of a method for calculating vehicle durability load according to the present invention;

[0038] Figure 6 A schematic flow chart of a fifth embodiment of a method for calculating vehicle durability load according to the present invention;

[0039] Figure 7 It is a functional module diagram of the first embodiment of the vehicle durability load calculation device of the present invention.

[0040] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0042] The solution of the embodiment of the present invention is mainly: by obtaining the working condition load file of the vehicle to be tested, reading the target information from the working condition load file; automatically compiling the incentive input file and the calculation working condition drive card according to the target information; performing vehicle body durability simulation according to the incentive input file and the calculation working condition drive card to obtain working condition durability load data; being able to automatically obtain the parameters of multiple working conditions at one time and submit the calculation without manual supervision, which greatly improves the work efficiency of durability load decomposition simulation, realizes the rapid decomposition of durable road spectrum, can identify the durability performance defects of components in advance, reduces the cost of physical prototype verification, can be widely used in project development, runs stably and reliably, improves the speed and efficiency of vehicle durability load calculation, and solves the technical problems that are contrary to the trend of continuous shortening in the prior art, are not suitable for the needs of rapid product development, and have disadvantages such as large workload, simple and repetitive operations, and easy errors when the amount of durable road spectrum data is large.

[0043] Reference Figure 1 , Figure 1 The figure is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention.

[0044] like Figure 1As shown, the device may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed RAM memory, or it may be a stable memory (Non-Volatile Memory), such as a disk memory. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.

[0045] Those skilled in the art will understand that Figure 1 The device structure shown in the figure does not constitute a limitation of the device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0046] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating device, a network communication module, a user interface module, and a vehicle durability load calculation program.

[0047] The device of the present invention calls the vehicle durability load calculation program stored in the memory 1005 through the processor 1001, and performs the following operations:

[0048] Obtaining a working condition load file of the vehicle to be tested, and reading target information from the working condition load file;

[0049] Automatically compile an incentive input file and a calculation condition drive card according to the target information;

[0050] Car body durability simulation is performed according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0051] The device of the present invention calls the vehicle durability load calculation program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0052] Acquire road spectrum data collected by the vehicle to be tested on a durable road, and obtain working condition load files corresponding to different working conditions from the road spectrum data;

[0053] The target information is read from the working condition load file according to the information reading module.

[0054] The device of the present invention calls the vehicle durability load calculation program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0055] According to the remote parameter control RPC encoding rules, the working condition file name, sampling frequency and data duration are read from the working condition load file through the information reading module, and the working condition file name, sampling frequency and data duration are used as target information.

[0056] The device of the present invention calls the vehicle durability load calculation program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0057] Obtaining an excitation channel name, a working condition file path, and a working condition file name according to the target information;

[0058] Generate an excitation input file in an excitation input folder in a preset vehicle database according to the excitation channel name, the working condition file path, the working condition file name and the Adams software coding rule;

[0059] A calculation condition card command set file is generated according to the condition data duration information and the sampling frequency information in the target information, and a calculation condition drive card is generated according to the Adams software readable card format and the calculation condition card command set file.

[0060] The device of the present invention calls the vehicle durability load calculation program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0061] The vehicle body durability simulation is performed on the vehicle to be tested using a vehicle virtual prototype model according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0062] The device of the present invention calls the vehicle durability load calculation program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0063] Select corresponding simulation experiment parameters according to the excitation input file and the calculation condition drive card;

[0064] Building a simulation experiment environment according to the simulation experiment parameters, and performing a vehicle body durability simulation experiment on the vehicle virtual prototype model in the simulation experiment environment;

[0065] The working condition durability load data is obtained through simulation calculation.

[0066] The device of the present invention calls the vehicle durability load calculation program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0067] The durable loads of the kinematic joints of each component of the suspension and the body connection points of the vehicle to be tested are obtained through simulation calculation. After the simulation calculation is completed under each working condition, the durable loads under each working condition are obtained to generate working condition durable load data.

[0068] Through the above scheme, this embodiment obtains the working condition load file of the vehicle to be tested, reads the target information from the working condition load file; automatically compiles the incentive input file and the calculation working condition drive card according to the target information; performs vehicle body durability simulation according to the incentive input file and the calculation working condition drive card to obtain working condition durability load data; can automatically obtain parameters of multiple working conditions at one time and submit calculations without manual supervision, greatly improving the work efficiency of durability load decomposition simulation, realizing the rapid decomposition of durable road spectra, being able to identify durability performance defects of components in advance, reducing the cost of physical prototype verification, and can be widely used in project development. It is stable and reliable in operation, and improves the speed and efficiency of vehicle durability load calculation.

[0069] Based on the above hardware structure, an embodiment of a method for calculating vehicle durability load of the present invention is proposed.

[0070] Reference Figure 2 , Figure 2 It is a flow chart of the first embodiment of the method for calculating vehicle durability load of the present invention.

[0071] In a first embodiment, the vehicle durability load calculation method comprises the following steps:

[0072] Step S10: Obtain the working condition load file of the vehicle to be tested, and read the target information from the working condition load file.

[0073] It should be noted that the operating condition load file is the road spectrum data of the vehicle to be tested on the current road and under different operating conditions. The information required for subsequent durability calculation can be read from the operating condition load file as target information.

[0074] Step S20: automatically compile an incentive input file and a calculation condition drive card according to the target information.

[0075] It should be understood that an excitation input file can be automatically compiled based on the target information, and a calculation condition drive card can be generated based on the target information.

[0076] Step S30: Car body durability simulation is performed according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0077] It can be understood that the vehicle body durability simulation test is carried out according to the excitation input file and the calculation working condition drive card, and the test results can be output after the durability simulation test, so as to obtain the working condition durability load data.

[0078] Through the above scheme, this embodiment obtains the working condition load file of the vehicle to be tested, reads the target information from the working condition load file; automatically compiles the incentive input file and the calculation working condition drive card according to the target information; performs vehicle body durability simulation according to the incentive input file and the calculation working condition drive card to obtain working condition durability load data; can automatically obtain parameters of multiple working conditions at one time and submit calculations without manual supervision, greatly improving the work efficiency of durability load decomposition simulation, realizing the rapid decomposition of durable road spectra, being able to identify durability performance defects of components in advance, reducing the cost of physical prototype verification, and can be widely used in project development. It is stable and reliable in operation, and improves the speed and efficiency of vehicle durability load calculation.

[0079] Further, Figure 3 FIG. 1 is a flow chart of a second embodiment of a method for calculating vehicle durability load according to the present invention. Figure 3 As shown, a second embodiment of the method for calculating the vehicle durability load of the present invention is proposed based on the first embodiment. In this embodiment, the step S10 specifically includes the following steps:

[0080] Step S11, obtaining road spectrum collection data of the vehicle to be tested on a durable road, and obtaining working condition load files corresponding to different working conditions from the road spectrum collection data.

[0081] It should be noted that when the vehicle to be tested is tested on a durability road for durability testing, corresponding road spectrum collection data will be generated, and working condition load files corresponding to different working conditions can be obtained from the road spectrum collection data.

[0082] Step S12: reading target information from the working condition load file according to the information reading module.

[0083] It can be understood that, according to the information reading module, information required for subsequent durability calculation can be read from the working condition load file as target information.

[0084] Through the above scheme, this embodiment obtains the road spectrum collection data of the vehicle to be tested on a durable road, and obtains the working condition load files corresponding to different working conditions from the road spectrum collection data; reads the target information from the working condition load file according to the information reading module, and can automatically obtain the parameters of multiple working conditions at one time and submit them for calculation without manual supervision, which greatly improves the work efficiency of durable load decomposition simulation.

[0085] Further, Figure 4FIG. 1 is a flow chart of a third embodiment of a method for calculating vehicle durability load according to the present invention. Figure 4 As shown, a third embodiment of the method for calculating the vehicle durability load of the present invention is proposed based on the second embodiment. In this embodiment, the step S12 specifically includes the following steps:

[0086] Step S121, according to the remote parameter control RPC coding rule, the working condition file name, sampling frequency and data duration are read from the working condition load file through the information reading module, and the working condition file name, the sampling frequency and the data duration are used as target information.

[0087] It should be noted that according to the Remote Parameter Control (RPC) encoding rules, the working condition file name, sampling frequency and data duration can be read from the working condition load file through the information reading module, and then the working condition file name, the sampling frequency and the data duration can be used as target information.

[0088] It is understandable that MTS's remote parameter control RPC technology is one of the core methods for conducting road simulation tests on complete vehicles and parts. MTS Systems has created the remote parameter control (RPCIII) file format, which has become the standard for writing time history information of loads, forces and accelerations. The RPC III file format supports multi-channel time history data with a fixed sampling rate or time step; the road spectrum data d_n.drv file is a data file in the RPCIII technology format, which records various information collected from durable road road spectra. The d_n.drv file used in this article mainly contains the collected six-component wheel center force information of durable roads.

[0089] In the specific implementation, the information reading module can actively search the working condition folder loadcases.tbl in the Adams software vehicle database to find all working condition files d_n.drv (RPCIII format files, edited by the road spectrum data *.rsp files); according to the RPC encoding rules, the information reading module reads the sampling frequency and data duration information from the d_n.drv working condition file for the compilation of the durable road calculation working condition card.

[0090] Through the above scheme, this embodiment uses the remote parameter control RPC coding rules to read the working condition file name, sampling frequency and data duration from the working condition load file through the information reading module, and uses the working condition file name, the sampling frequency and the data duration as target information, so as to quickly obtain the required data as the target information, thereby greatly improving the work efficiency of the durability load decomposition simulation.

[0091] Further, Figure 5FIG. 4 is a flow chart of a fourth embodiment of a method for calculating vehicle durability load according to the present invention. Figure 5 As shown, a fourth embodiment of the method for calculating the vehicle durability load of the present invention is proposed based on the first embodiment. In this embodiment, the step S20 specifically includes the following steps:

[0092] Step S21, obtaining the excitation channel name, the working condition file path and the working condition file name according to the target information.

[0093] It should be noted that the excitation channel name, the working condition file path and the working condition file name can be obtained according to the target information.

[0094] Step S22: Generate an excitation input file in an excitation input folder in a preset vehicle database according to the excitation channel name, working condition file path, working condition file name and Adams software coding rules.

[0095] It is understandable that, according to the excitation channel name, the working condition file path, the working condition file name and the Adams software coding rule, an excitation input file can be generated in an excitation input folder in a preset vehicle database.

[0096] In the specific implementation, the excitation file d_n.aci can be generated in the actuation_inputs.tbl excitation input folder in the Adams software vehicle database according to the Adams software coding rules, which mainly contains information such as the excitation channel name, the path of the working condition file, and the working condition file name.

[0097] Step S23, generating a calculation condition card command set file according to the condition data duration information and the sampling frequency information in the target information, and generating a calculation condition drive card according to the Adams software readable card format and the calculation condition card command set file.

[0098] It should be understood that a calculation condition card command set file can be generated based on the condition data duration information and sampling frequency information in the target information, and then a calculation condition drive card can be generated based on the Adams software readable card format and the calculation condition card command set file.

[0099] In the specific implementation, to submit a durability simulation calculation of a working condition, it is necessary to fill in the working condition related parameter information shown in the calculation condition card in the Adams software in the figure above, mainly including the calculation time End Time, sampling frequency Frequency [Hz] and the path of the excitation input file Actuation Input File; to obtain the calculation time and sampling frequency information, it is usually necessary to use nCode and other software to open the road spectrum condition file d_n.drv, and then read the working condition data time and sampling frequency parameters; produce the calculation condition card module, use the calculation time and sampling frequency information obtained by the information reading module, and generate the calculation condition card command set file that can be read by the Adams software, to achieve the same function as the Adams software calculation condition card.

[0100] This embodiment adopts the above scheme, by obtaining the excitation channel name, the working condition file path and the working condition file name according to the target information; generating an excitation input file in the excitation input folder in the preset vehicle database according to the excitation channel name, the working condition file path, the working condition file name and the Adams software coding rules; generating a calculation working condition card command set file according to the working condition data duration information and the sampling frequency information in the target information, and generating a calculation working condition drive card according to the Adams software readable card format and the calculation working condition card command set file, which can realize the rapid decomposition of the durable road spectrum, can identify the durability performance defects of components in advance, and improve the speed and efficiency of vehicle durability load calculation.

[0101] Further, Figure 6 FIG. 5 is a flow chart of a fifth embodiment of a method for calculating vehicle durability load according to the present invention. Figure 6 As shown, a fifth embodiment of the method for calculating the vehicle durability load of the present invention is proposed based on the first embodiment. In this embodiment, the step S30 specifically includes the following steps:

[0102] Step S31: Perform body durability simulation on the vehicle to be tested using a vehicle virtual prototype model according to the stimulus input file and the calculation working condition drive card to obtain working condition durability load data.

[0103] It should be noted that, according to the stimulus input file and the calculation working condition drive card, the vehicle virtual prototype model can be used to perform body durability simulation on the vehicle to be tested to obtain working condition durability load data.

[0104] In the specific implementation, the vehicle virtual prototype model *.asy is a vehicle multi-body dynamics vehicle model, which is mainly composed of subsystems such as a body subsystem, a front suspension subsystem, a rear suspension subsystem, a steering subsystem, a stabilizer bar subsystem, a braking subsystem, and a virtual test bench subsystem; the model body is fixed to the ground, and there are excitation channels at the wheel centers of the four wheels, and the six wheel center forces, namely Fx, Fy, Fz, Tx, Ty, and Tz, can be input. Based on the fixed body method of Adams software, the six wheel center forces of the road spectrum of a durable road are used as excitation input, and the durable loads of the key points of the suspension and the body are obtained by highly automated execution of vehicle multi-body dynamics simulation.

[0105] Furthermore, the step S31 specifically includes the following steps:

[0106] Select corresponding simulation experiment parameters according to the excitation input file and the calculation condition drive card;

[0107] Building a simulation experiment environment according to the simulation experiment parameters, and performing a vehicle body durability simulation experiment on the vehicle virtual prototype model in the simulation experiment environment;

[0108] The working condition durability load data is obtained through simulation calculation.

[0109] It can be understood that corresponding simulation experiment parameters can be selected according to the excitation input file and the calculation condition drive card, and then a simulation experiment environment can be built according to the simulation experiment parameters, and then a vehicle body durability simulation experiment can be carried out in the simulation experiment environment to obtain working condition durability load data corresponding to different working conditions.

[0110] Furthermore, the step of obtaining the working condition durability load data through simulation calculation specifically includes the following steps:

[0111] The durable loads of the kinematic joints of each component of the suspension and the body connection points of the vehicle to be tested are obtained through simulation calculation. After the simulation calculation is completed under each working condition, the durable loads under each working condition are obtained to generate working condition durable load data.

[0112] In the specific implementation, the durability simulation can be carried out by the fixed body method. Based on the virtual loading test bench model, the body subsystem is fixed to the ground, and the working load (from d_n.drv) is input at the wheel center of the vehicle multi-body dynamics model. The simulation calculation is carried out according to the duration and sampling frequency of the working load to obtain the durability load of the kinematic parts of each suspension component and the body connection point.

[0113] The technical solution of this embodiment can be applied to the decomposition simulation of durable road spectrum in project development. The simulation work that originally took 2-3 days to complete can now be completed within 8 hours; the original simulation method requires manual supervision, setting working condition parameters for each working condition and submitting calculations, which is inefficient; the technical solution of the rapid decomposition device does not require manual supervision, and can automatically obtain parameters of multiple working conditions (data duration, sampling frequency) at one time, and submit calculations, which greatly improves the work efficiency of durable load decomposition simulation, has been widely used in project development, operates stably and reliably, and has brought considerable economic benefits to enterprises.

[0114] Through the above scheme, this embodiment obtains the working condition load file of the vehicle to be tested, reads the target information from the working condition load file; automatically compiles the incentive input file and the calculation working condition drive card according to the target information; performs vehicle body durability simulation according to the incentive input file and the calculation working condition drive card to obtain working condition durability load data; can automatically obtain parameters of multiple working conditions at one time and submit calculations without manual supervision, greatly improving the work efficiency of durability load decomposition simulation, realizing the rapid decomposition of durable road spectra, being able to identify durability performance defects of components in advance, reducing the cost of physical prototype verification, and can be widely used in project development. It is stable and reliable in operation, and improves the speed and efficiency of vehicle durability load calculation.

[0115] Accordingly, the present invention further provides a vehicle durability load calculation device.

[0116] Reference Figure 7 , Figure 7 It is a functional module diagram of the first embodiment of the vehicle durability load calculation device of the present invention.

[0117] In a first embodiment of the vehicle durable load calculation device of the present invention, the vehicle durable load calculation device comprises:

[0118] The information reading module 10 is used to obtain the working condition load file of the vehicle to be tested, and read the target information from the working condition load file.

[0119] The calculation module 20 is used to automatically compile an excitation input file and a calculation condition drive card according to the target information.

[0120] The durability simulation module 30 is used to perform vehicle body durability simulation according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0121] The information reading module 10 is also used to obtain the road spectrum collection data of the vehicle to be tested on a durable road, obtain the working condition load files corresponding to different working conditions from the road spectrum collection data; and read the target information from the working condition load files according to the information reading module.

[0122] The information reading module 10 is also used to read the working condition file name, sampling frequency and data duration from the working condition load file through the information reading module according to the remote parameter control RPC encoding rules, and use the working condition file name, sampling frequency and data duration as target information.

[0123] The compilation calculation module 20 is also used to obtain the excitation channel name, the working condition file path and the working condition file name according to the target information; generate an excitation input file in the excitation input folder in the preset vehicle database according to the excitation channel name, the working condition file path, the working condition file name and the Adams software coding rules; generate a calculation working condition card command set file according to the working condition data duration information and sampling frequency information in the target information, and generate a calculation working condition drive card according to the Adams software readable card format and the calculation working condition card command set file.

[0124] The durability simulation module 30 is further used to perform body durability simulation on the vehicle to be tested using a vehicle virtual prototype model according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0125] The durability simulation module 30 is also used to select corresponding simulation experiment parameters according to the excitation input file and the calculation working condition drive card; build a simulation experiment environment according to the simulation experiment parameters, and perform a body durability simulation experiment on the vehicle virtual prototype model in the simulation experiment environment; and obtain working condition durability load data through simulation calculation.

[0126] The durability simulation module 30 is also used to obtain the durability loads of the kinematic joints of each suspension component and the body connection points of the vehicle to be tested through simulation calculations. After completing the simulation calculations under various working conditions, the durability loads under various working conditions are obtained to generate working condition durability load data.

[0127] The steps implemented by each functional module of the vehicle durable load calculation device can refer to the various embodiments of the vehicle durable load calculation method of the present invention, and will not be repeated here.

[0128] In addition, an embodiment of the present invention further provides a storage medium, on which a vehicle durable load calculation program is stored. When the vehicle durable load calculation program is executed by a processor, the following operations are implemented:

[0129] Obtaining a working condition load file of the vehicle to be tested, and reading target information from the working condition load file;

[0130] Automatically compile an incentive input file and a calculation condition drive card according to the target information;

[0131] Car body durability simulation is performed according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0132] Furthermore, when the vehicle durable load calculation program is executed by the processor, the following operations are also implemented:

[0133] Acquire road spectrum data collected by the vehicle to be tested on a durable road, and obtain working condition load files corresponding to different working conditions from the road spectrum data;

[0134] The target information is read from the working condition load file according to the information reading module.

[0135] Furthermore, when the vehicle durable load calculation program is executed by the processor, the following operations are also implemented:

[0136] According to the remote parameter control RPC encoding rules, the working condition file name, sampling frequency and data duration are read from the working condition load file through the information reading module, and the working condition file name, sampling frequency and data duration are used as target information.

[0137] Furthermore, when the vehicle durable load calculation program is executed by the processor, the following operations are also implemented:

[0138] Obtaining an excitation channel name, a working condition file path, and a working condition file name according to the target information;

[0139] Generate an excitation input file in an excitation input folder in a preset vehicle database according to the excitation channel name, the working condition file path, the working condition file name and the Adams software coding rule;

[0140] A calculation condition card command set file is generated according to the condition data duration information and the sampling frequency information in the target information, and a calculation condition drive card is generated according to the Adams software readable card format and the calculation condition card command set file.

[0141] Furthermore, when the vehicle durable load calculation program is executed by the processor, the following operations are also implemented:

[0142] The vehicle body durability simulation is performed on the vehicle to be tested using a vehicle virtual prototype model according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

[0143] Furthermore, when the vehicle durable load calculation program is executed by the processor, the following operations are also implemented:

[0144] Select corresponding simulation experiment parameters according to the excitation input file and the calculation condition drive card;

[0145] Building a simulation experiment environment according to the simulation experiment parameters, and performing a vehicle body durability simulation experiment on the vehicle virtual prototype model in the simulation experiment environment;

[0146] The working condition durability load data is obtained through simulation calculation.

[0147] Furthermore, when the vehicle durable load calculation program is executed by the processor, the following operations are also implemented:

[0148] The durable loads of the kinematic joints of each component of the suspension and the body connection points of the vehicle to be tested are obtained through simulation calculation. After the simulation calculation is completed under each working condition, the durable loads under each working condition are obtained to generate working condition durable load data.

[0149] Those skilled in the art will appreciate that all or part of the steps in the above-mentioned implementation method can be accomplished by instructing related hardware through a program, and the program is stored in a storage medium, including a number of instructions for enabling a device (which may be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the method described in each implementation method of the present application; and the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.

[0150] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0151] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0152] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for calculating vehicle durability load, characterized in that: The vehicle durability load calculation method comprises: Obtaining a working condition load file of the vehicle to be tested, and reading target information from the working condition load file; Automatically compile an incentive input file and a calculation condition drive card according to the target information; Car body durability simulation is performed according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

2. The method for calculating vehicle durability load according to claim 1, characterized in that: The step of obtaining a working condition load file of the vehicle to be tested and reading target information from the working condition load file includes: Acquire road spectrum data collected by the vehicle to be tested on a durable road, and obtain working condition load files corresponding to different working conditions from the road spectrum data; The target information is read from the working condition load file according to the information reading module.

3. The method for calculating vehicle durability load according to claim 2, characterized in that: The step of reading target information from the working condition load file according to the information reading module includes: According to the remote parameter control RPC encoding rules, the working condition file name, sampling frequency and data duration are read from the working condition load file through the information reading module, and the working condition file name, sampling frequency and data duration are used as target information.

4. The method for calculating vehicle durability load according to claim 1, characterized in that: The method of automatically compiling an incentive input file and a calculation condition drive card according to the target information includes: Obtaining an excitation channel name, a working condition file path, and a working condition file name according to the target information; Generate an excitation input file in an excitation input folder in a preset vehicle database according to the excitation channel name, the working condition file path, the working condition file name and the Adams software coding rule; A calculation condition card command set file is generated according to the condition data duration information and the sampling frequency information in the target information, and a calculation condition drive card is generated according to the Adams software readable card format and the calculation condition card command set file.

5. The vehicle durability load calculation method according to claim 1, characterized in that: The performing of vehicle body durability simulation according to the excitation input file and the calculation working condition driving card to obtain working condition durability load data includes: The vehicle body durability simulation is performed on the vehicle to be tested using a vehicle virtual prototype model according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

6. The method for calculating vehicle durability load according to claim 5, characterized in that: The method of performing body durability simulation on the vehicle to be tested by using a vehicle virtual prototype model according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data includes: Select corresponding simulation experiment parameters according to the excitation input file and the calculation condition drive card; Building a simulation experiment environment according to the simulation experiment parameters, and performing a vehicle body durability simulation experiment on the vehicle virtual prototype model in the simulation experiment environment; The working condition durability load data is obtained through simulation calculation.

7. The method for calculating vehicle durability load according to claim 6, characterized in that: The method of obtaining the working condition durability load data by simulation calculation includes: The durable loads of the kinematic joints of each component of the suspension and the body connection points of the vehicle to be tested are obtained through simulation calculation. After the simulation calculation is completed under each working condition, the durable loads under each working condition are obtained to generate working condition durable load data.

8. A vehicle durability load calculation device, characterized in that: The vehicle durability load calculation device comprises: An information reading module is used to obtain a working condition load file of the vehicle to be tested and read target information from the working condition load file; A calculation module is prepared, which is used to automatically prepare an excitation input file and a calculation condition drive card according to the target information; The durability simulation module is used to perform vehicle body durability simulation according to the excitation input file and the calculation working condition drive card to obtain working condition durability load data.

9. A vehicle durability load calculation device, characterized in that: The vehicle durable load calculation device includes: a memory, a processor, and a vehicle durable load calculation program stored in the memory and executable on the processor, wherein the vehicle durable load calculation program is configured to implement the steps of the vehicle durable load calculation method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores a vehicle durable load calculation program, and when the vehicle durable load calculation program is executed by the processor, the steps of the vehicle durable load calculation method according to any one of claims 1 to 7 are implemented.

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