Performance Testing Method, System and Device for Damping Adjustable Shock Absorber

Abstract

The present invention discloses a performance testing method, system and device for a damping adjustable shock absorber. Among them, the method includes: obtaining a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model, and transmitting them to the damping adjustable shock absorber to be tested; obtaining first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; updating the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; and taking the current control current signal corresponding to the updated vehicle dynamics model that meets the first preset condition as the optimal control current signal. The present invention solves the technical problems of low testing efficiency and poor testing accuracy existing in the performance testing method of the damping adjustable shock absorber in the related art.

Description

Technical Field

[0001] The present invention relates to the field of shock absorber performance verification, and more particularly, to a performance testing method, system, and device for a damping adjustable shock absorber. Background Art

[0002] Currently, in order to reduce the probability of product quality problems, a large number of verifications have been carried out on damping adjustable shock absorbers using related technologies during the development stage. The verifications include virtual verification and physical verification. However, in virtual verification, it often occurs that the simulation results are good, but problems that are not found in actual applications occur. This is because the damping adjustable shock absorber is a typical product with multi-physical coupling of mechanics, electricity, and hydraulics, resulting in difficult-to-accurately simulate problems. Although the results of physical verification are more accurate, there are problems such as long test cycles, high costs, and difficult-to-implement complex scenarios.

[0003] In view of the above problems, no effective solution has been proposed yet. Summary of the Invention

[0004] Embodiments of the present invention provide a performance testing method, system, and device for a damping adjustable shock absorber, so as to at least solve the technical problems of low testing efficiency and poor testing accuracy existing in the performance testing method of the damping adjustable shock absorber in related technologies.

[0005] According to one aspect of the embodiments of the present invention, there is provided a performance testing method for a damping adjustable shock absorber, including: obtaining a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model; transmitting the first vertical excitation signal and the initial control current signal to the damping adjustable shock absorber to be tested; obtaining first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; updating the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; determining whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, using the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal.

[0006] Optionally, if the first performance parameter of the updated vehicle dynamics model does not meet the first preset condition, it further includes: by updating the initial control current signal, transmitting the updated initial control current signal and the first vertical excitation signal to the damping adjustable shock absorber to be tested to obtain updated first load data, and updating the previously obtained vehicle dynamics model based on the updated first load data until the first performance parameter of the updated vehicle dynamics model meets the first preset condition.

[0007] Optionally, obtain a second vertical excitation signal and a test control signal; transmit the second vertical excitation signal and the test control signal to the damping adjustable shock absorber to be tested; obtain second load data and displacement data of the damping adjustable shock absorber to be tested under the control of the test control signal; determine whether the second load data and the displacement data meet a second preset condition, and if the second load data and the displacement data meet the second preset condition, determine that the performance test of the damping adjustable shock absorber to be tested passes; after determining that the performance test of the damping adjustable shock absorber to be tested passes, obtain the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model of the damping adjustable shock absorber to be tested.

[0008] Optionally, construct a test curve based on multiple sets of the second load data and multiple sets of the displacement data; determine a rebound damping force value and a compression damping force value corresponding to the damping adjustable shock absorber to be tested based on the second load data; determine whether the test curve, the rebound damping force value, and the compression damping force value meet the second preset condition; if the test curve, the rebound damping force value, and the compression damping force value all meet the second preset condition, determine that the performance test of the damping adjustable shock absorber to be tested passes.

[0009] According to another aspect of the embodiments of the present invention, there is also provided a performance test system for a damping adjustable shock absorber, including: a main control device, configured to obtain a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model; a vertical excitation device, connected to the main control device, configured to transmit the first vertical excitation signal to the damping adjustable shock absorber to be tested; a power supply device, connected to the main control device, configured to transmit the initial control current signal to the damping adjustable shock absorber to be tested; a first signal acquisition device, connected to the main control device, configured to obtain first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; a simulation device, connected to the first signal acquisition device and the vertical excitation device, configured to update the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; determine whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal.

[0010] Optionally, the simulation device is further configured to construct the initial vehicle dynamics model corresponding to the damping adjustable shock absorber to be tested, and transmit the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model to the main control device.

[0011] Optionally, the simulation device is further configured to update the initial control current signal and transmit the updated initial control current signal to the main control device.

[0012] Optionally, a second signal acquisition device, connected to the main control device, is configured to acquire displacement data of the damping adjustable shock absorber to be tested under the control of the test control signal; the vertical excitation device is further configured to acquire second load data of the damping adjustable shock absorber to be tested under the control of the test control signal; the main control device is further configured to determine whether the second load data and the displacement data meet a second preset condition, and if the second load data and the displacement data meet the second preset condition, determine that the performance test of the damping adjustable shock absorber to be tested passes.

[0013] According to another aspect of the embodiments of the present invention, there is also provided a performance test device for a damping adjustable shock absorber, including: a first acquisition module, configured to acquire a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model; a transmission module, configured to transmit the first vertical excitation signal and the initial control current signal to the damping adjustable shock absorber to be tested; a second acquisition module, configured to acquire first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; an update module, configured to update the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; a judgment module, configured to judge whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; a third acquisition module, if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, using the current control current signal corresponding to the updated vehicle dynamics model as an optimal control current signal.

[0014] According to still another aspect of the embodiments of the present invention, there is also provided a non-volatile storage medium, including: the non-volatile storage medium stores multiple instructions, and the instructions are adapted to be loaded and executed by a processor to perform any one of the performance test methods of the damping adjustable shock absorber.

[0015] In an embodiment of the present invention, a first vertical excitation signal and an initial control current signal of a damping adjustable shock absorber to be tested in an initial vehicle dynamics model are obtained; the first vertical excitation signal and the initial control current signal are transmitted to the damping adjustable shock absorber to be tested; first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal is obtained; the initial vehicle dynamics model is updated according to the first load data to obtain an updated vehicle dynamics model; it is determined whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, the current control current signal corresponding to the updated vehicle dynamics model is used as the optimal control current signal. The purpose of optimizing and testing the damping adjustable shock absorber to be tested in a combination of simulation and physical object is achieved, thereby realizing the technical effect of improving the performance test efficiency and test accuracy of the damping adjustable shock absorber, and further solving the technical problems of low test efficiency and poor test accuracy existing in the performance test method of the damping adjustable shock absorber in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a flowchart of a performance test method for a damping adjustable shock absorber according to an embodiment of the present invention;

[0018] Figure 2 is a structural block diagram of a performance test system for a damping adjustable shock absorber according to an embodiment of the present invention;

[0019] Figure 3 is a schematic diagram of a performance test system for a damping adjustable shock absorber according to an embodiment of the present invention;

[0020] Figure 4 is a flowchart of a performance test system for a damping adjustable shock absorber according to an embodiment of the present invention;

[0021] Figure 5 is a schematic diagram of a performance test device for a damping adjustable shock absorber according to an embodiment of the present invention;

[0022] Figure 6 is a schematic diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To enable those skilled in the art to better understand the solution 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 accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order different from those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0025] According to an embodiment of the present invention, a method embodiment of a performance test method for a damping adjustable shock absorber is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described here can be executed in a different order from that here.

[0026] Figure 1 is a flowchart of a performance test method for a damping adjustable shock absorber according to an embodiment of the present invention, as Figure 1 shown, the method includes the following steps:

[0027] Step S102, obtaining a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in the initial vehicle dynamics model;

[0028] Step S104, transmitting the first vertical excitation signal and the initial control current signal to the damping adjustable shock absorber to be tested;

[0029] Step S106, obtaining first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal;

[0030] Step S108, updating the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model;

[0031] Step S110, determine whether the first performance parameter of the updated vehicle dynamics model meets the first preset condition;

[0032] Step S112, if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, then use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal.

[0033] Through the above steps, the purpose of optimizing and testing the damping adjustable shock absorber to be measured by combining simulation and physical objects can be achieved, thereby achieving the technical effects of improving the performance test efficiency and test accuracy of the damping adjustable shock absorber, and further solving the technical problems of low test efficiency and poor test accuracy existing in the performance test method of the damping adjustable shock absorber in the related art.

[0034] In the performance test method of the damping adjustable shock absorber provided by the embodiment of the present invention, first obtain the first vertical excitation signal and the initial control current signal of the damping adjustable shock absorber to be measured in the initial vehicle dynamics model, and transmit the above signals to the damping adjustable shock absorber to be measured. The first vertical excitation signal makes the damping adjustable shock absorber to be measured move in the vertical direction, and the initial control current signal controls the damping adjustable shock absorber to be measured. Then obtain the first load data of the damping adjustable shock absorber to be measured under the control of the first vertical excitation signal and the initial control current signal, and use the first load data to update the initial vehicle dynamics model. The initial vehicle dynamics model is a virtual verification simulation model, and the first performance parameter is obtained by using the first load data for updating in the initial vehicle dynamics model. Using the first load data obtained from the actual test for updating is beneficial to obtain more accurate simulation results, that is, more accurate first performance parameters. Determine whether the first performance parameter meets the first preset condition. If the judgment result is satisfied, then obtain the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal. Among them, the first performance parameter is a settable related parameter (such as vehicle body acceleration), and the first preset condition is the judgment condition of the settable related parameter.

[0035] Optionally, transmit the above first vertical excitation signal to the damping adjustable shock absorber to be measured, where the transmission method can be various. For example, it can be transmitted to the damping adjustable shock absorber to be measured through relevant equipment or devices.

[0036] Optionally, the above first vertical excitation signal can be in various forms. For example, the first vertical excitation signal can be a signal generated by a programmable test program. Assuming the programmable test program is a damping force test program, the test parameters included can be but are not limited to current, test waveform, speed, amplitude, frequency, number of cycles, and so on. The current and speed can be set according to the required technical conditions. The test waveform can be set to a waveform such as a sine wave. There is a correlation between speed, amplitude, and frequency, and an expression can be set for the above correlation. By comprehensively setting the above test parameters, a first vertical excitation signal based on the set damping force test program is obtained.

[0037] Optionally, establishing an initial vehicle dynamics model is a virtual verification means. The vehicle dynamics model can be a real-time simulation model. Updating the vehicle dynamics model is a real-time optimization means. By using the first load data collected in real time for updating, it is beneficial to perform iterative optimization of the vehicle dynamics model in real time. Further, an optimal control current signal with high accuracy can be obtained efficiently.

[0038] Optionally, the first performance parameter can be a series of settable relevant parameters. The above relevant parameters can be used to characterize the vehicle performance affected by the damping adjustable shock absorber. For example, the relevant parameter can be body acceleration. To ensure vehicle driving comfort, whether the performance of the shock absorber configured in the vehicle meets the requirements will, to a certain extent, affect the maximum value of the body acceleration that the vehicle can reach, reducing the situation where it is difficult for the shock absorber to produce good effects under large accelerations. Similarly, the first preset condition can also be a judgment condition for a series of settable relevant parameters.

[0039] It should be noted that the above initial control current signal is expressed as an analog signal for controlling the damping adjustable shock absorber to be tested. Using other analog signals, such as voltage signals, is also within the protection scope of the present invention.

[0040] In an optional embodiment, if the first performance parameter of the updated vehicle dynamics model does not meet the first preset condition, the method further includes: by updating the initial control current signal, transmitting the updated initial control current signal and the first vertical excitation signal to the damping adjustable shock absorber to be tested, obtaining updated first load data, and updating the previously obtained vehicle dynamics model based on the updated first load data until the first performance parameter of the updated vehicle dynamics model meets the first preset condition.

[0041] It can be understood that in the case where the first performance parameter of the updated vehicle dynamics model does not meet the first preset condition, the following method is adopted for processing. Updating the initial control current signal through the initial vehicle dynamics model can be regarded as an iterative optimization of the initial control circuit signal. Transmitting the updated initial control current signal and the first vertical excitation signal to the damping adjustable shock absorber to be tested to obtain the updated first load data, that is, the actual test data obtained after one iteration of optimization. Updating the previously obtained vehicle dynamics model based on the updated first load data can be regarded as an iterative optimization of the previously obtained vehicle dynamics model. Determine whether the first performance parameter of the updated vehicle dynamics model meets the first preset condition. If the determination result is still not met, repeat the above processing method until the first performance parameter of the updated vehicle dynamics model meets the first preset condition, and then use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal.

[0042] Optionally, the process of updating the vehicle dynamics model, the initial control current signal, the first vertical excitation signal, and the first load data can be regarded as an iterative optimization process. There may be a situation where after a large number of update processes, the above first performance parameter still cannot meet the above first preset condition. Multiple methods can be used to end the update process. For example, a maximum number of updates can be set. If the number of updates reaches the above maximum number of updates and the first performance parameter that meets the first preset condition still cannot be obtained, the update process is ended and a prompt message is sent.

[0043] In an optional embodiment, a second vertical excitation signal and a test control signal are obtained; the second vertical excitation signal and the test control signal are transmitted to the damping adjustable shock absorber to be tested; the second load data and displacement data of the damping adjustable shock absorber to be tested under the control of the test control signal are obtained; it is determined whether the second load data and displacement data meet the second preset condition. If the second load data and displacement data meet the second preset condition, it is determined that the performance test of the damping adjustable shock absorber to be tested is passed; after it is determined that the performance test of the damping adjustable shock absorber to be tested is passed, the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model of the damping adjustable shock absorber to be tested are obtained.

[0044] It can be understood that the method provided in the above optional embodiments is to determine whether the damping adjustable shock absorber to be tested can pass the performance test. If the judgment result is that it can pass, the damping adjustable shock absorber to be tested that meets the second preset condition is further optimized. When the judgment result is that it cannot pass, the damping adjustable shock absorber to be tested is replaced. First, obtain the second vertical excitation signal and the test control signal, and transmit the above signals to the damping adjustable shock absorber to be tested. The second vertical excitation signal causes the damping adjustable shock absorber to be tested to move in the vertical direction, and the test control signal controls the damping adjustable shock absorber to be tested. Then, obtain the second load data and displacement data of the damping adjustable shock absorber to be tested under the control of the second vertical excitation signal and the test control signal. Determine whether the second load data and displacement data meet the second preset condition. If the judgment result is that they meet, it is determined that the performance test of the damping adjustable shock absorber to be tested passes. Only the damping adjustable shock absorber that can pass the performance test can further obtain the above optimal control current signal.

[0045] Optionally, transmit the above second vertical excitation signal to the damping adjustable shock absorber to be tested. Among them, the transmission method can be various. For example, it can be transmitted to the damping adjustable shock absorber to be tested through relevant equipment or devices.

[0046] Optionally, the above second vertical excitation signal can be in various forms. For example, the second vertical excitation signal can be a signal generated by a programmable test program. Assuming that the above programmable test program is a damping force test program, the test parameters included can be, such as current, test waveform, speed, amplitude, frequency, number of cycles, etc. The current and speed can be set according to the required technical conditions. The test waveform can be set to a waveform such as a sine wave. There is a correlation between the speed, amplitude, and frequency, and an expression can be set for the above correlation. Based on the above setting of the test parameters, the second vertical excitation signal based on the set damping force test program is obtained.

[0047] It should be noted that before obtaining the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model of the damping adjustable shock absorber to be tested, it is necessary to determine that the damping adjustable shock absorber to be tested passes the performance test. This can perform a preliminary screening to screen out the damping adjustable shock absorbers to be tested that do not meet the second preset condition in the test, thereby further improving the efficiency of obtaining the above optimal control current signal.

[0048] In an alternative embodiment, it is determined whether the second load data and the displacement data meet the second preset condition. If the second load data and the displacement data meet the second preset condition, it is determined that the performance test of the damping adjustable shock absorber to be tested passes, including: constructing a test curve based on multiple sets of second load data and multiple sets of displacement data; determining the corresponding rebound damping force value and compression damping force value of the damping adjustable shock absorber to be tested based on the second load data; determining whether the test curve, the rebound damping force value, and the compression damping force value meet the second preset condition; if the test curve, the rebound damping force value, and the compression damping force value all meet the second preset condition, it is determined that the performance test of the damping adjustable shock absorber to be tested passes.

[0049] It can be understood that the test curve, the rebound damping force value, and the compression damping force value obtained based on multiple sets of second load data and multiple sets of displacement data are used to judge against the second preset condition. If the judgment result is satisfied, it is determined that the performance test of the damping adjustable shock absorber to be tested passes.

[0050] Optionally, there are various ways to construct the test curve based on multiple sets of second load data and multiple sets of displacement data. For example, the above test curve can be a working diagram, which is drawn based on the second load data and the displacement data, and a test curve with the displacement data as the abscissa and the second load data as the ordinate is obtained.

[0051] Optionally, the above-mentioned rebound damping force value can be the maximum damping force value extracted during the rebound stroke under the action of the second vertical excitation signal.

[0052] Optionally, the above-mentioned compression damping force value can be the maximum damping force value extracted during the compression stroke under the action of the second vertical excitation signal.

[0053] Based on the above embodiments and alternative embodiments, the present invention proposes an alternative implementation manner, which specifically includes:

[0054] There is a damping adjustable shock absorber A to be tested that needs to be subjected to a performance test during the development stage, and the following steps need to be carried out:

[0055] Step S1, verifying whether the performance of the damping adjustable shock absorber A to be tested passes the performance test.

[0056] Step S11, obtaining a second vertical excitation signal and a test control signal, where the second vertical excitation signal is set as the signal obtained from the damping force test program. The test parameters included in the damping force test program are current, test waveform, speed, amplitude, frequency, and number of cycles. The current and speed are set according to the technical conditions required for the damping adjustable shock absorber A to be tested, the test waveform is set as a sine wave, and there is the following relationship among speed, amplitude, and frequency: V = 2π × f × s × 10 -3, where V is the velocity (m / s), f is the frequency (Hz), and s is the amplitude (mm). The amplitude is selected within (20 - 50) mm, and the number of cycles is 3 times.

[0057] Step S12: Transmit the second vertical excitation signal and the test control signal to the damping adjustable shock absorber A to be tested.

[0058] Step S13: Synchronously collect the second load data and displacement data of the damping adjustable shock absorber A to be tested under the control of the test control signal. Among them, the acquisition frequency of synchronous sampling is based on the velocity value in the damping force test procedure, and the displacement data and the second load data of the second cycle corresponding to each of the above velocity values are collected.

[0059] Step S14: The test curves, the restoring damping force value, and the compression damping force value obtained based on multiple groups of second load data and multiple groups of displacement data are used to make a judgment with respect to the second preset condition. Among them, a working diagram is drawn based on the second load data and the displacement data as the above test curve, with the displacement data as the abscissa and the second load data as the ordinate. The maximum damping force value in the restoring stroke under the action of the second vertical excitation signal is extracted as the above-mentioned restoring damping force value. The maximum damping force value in the compression stroke under the action of the second vertical excitation signal is extracted as the compression damping force value.

[0060] Step S15: Judge whether the above test curves, the restoring damping force value, and the compression damping force value meet the second preset condition, that is, judge whether the second load data and the displacement data meet the second preset condition. If the judgment is not satisfied, the damping adjustable shock absorber A to be tested is excluded, and other damping adjustable shock absorbers to be tested are replaced for performance testing; if the judgment is satisfied, the damping adjustable shock absorber A to be tested is further optimized.

[0061] Step S2: Optimize the damping adjustable shock absorber A to be tested to obtain the optimal control current signal.

[0062] Step S21: Obtain the first vertical excitation signal and the initial control current signal I1 of the damping adjustable shock absorber A to be tested in the initial vehicle dynamics model M1. Among them, the first vertical excitation signal can be obtained by means similar to the above second vertical excitation signal, which will not be elaborated here. The physical meaning represented by the first vertical excitation signal is the actual road condition. Obtaining the initial vehicle dynamics model M1 is to establish a virtual verification means for real-time simulation.

[0063] Step S22: Transmit the first vertical excitation signal and the initial control current signal I1 to the damping adjustable shock absorber A to be tested to reproduce the control state corresponding to the initial control current signal I1 in the physical object.

[0064] Step S23, synchronously collect the first load data D1 of the damping adjustable shock absorber A to be measured under the first vertical excitation signal and the initial control current signal I1.

[0065] Step S24, update the initial vehicle dynamics model M1 according to the first load data D1 to obtain the updated vehicle dynamics model M2.

[0066] Step S25, determine whether the first performance parameter of the updated vehicle dynamics model M2 meets the first preset condition, and evaluate the control current signal based on the above judgment result, where the first performance parameter is set as the vehicle body acceleration.

[0067] Step S26, if the first performance parameter of the vehicle dynamics model M2 meets the first preset condition, then use the control current signal I2 corresponding to the vehicle dynamics model M2 as the optimal control current signal.

[0068] Step S27, if the first performance parameter of the vehicle dynamics model M2 does not meet the first preset condition, it can be considered that the corresponding control current signal I2 is not applicable to the actual road conditions characterized by the first vertical excitation signal, and the control current signal I2 needs to be optimized. Then, based on the vehicle dynamics model M2, update the control current signal I2 to obtain the control current signal I3. Then continue to optimize according to the following method.

[0069] Step S21, transmit the first vertical excitation signal and the initial control current signal I3 to the damping adjustable shock absorber A to be measured. Update the initial vehicle dynamics model M2 according to the first load data D2 to obtain the updated vehicle dynamics model M3. Determine whether the first performance parameter of the vehicle dynamics model M3 meets the first preset condition. If the first performance parameter of the vehicle dynamics model M3 still does not meet the first preset condition, then repeat the iterative optimization in the above manner until the optimal control current signal is obtained, or the number of iterations reaches the maximum number of iterations. If the optimal control current signal cannot be obtained after the maximum number of iterations, a prompt message needs to be sent, and relevant technical personnel are required to make physical adjustments or simulation model adjustments.

[0070] From the above optional implementation manners, the actually collected load data in real time can be used to optimize the vehicle dynamics model, obtain the optimized control current signal in a timely manner, and collect the optimized actual load data in real time again. Based on real-time collection and real-time feedback optimization, it is beneficial to obtain the optimal control current signal efficiently and quickly. Substituting the actual test data is beneficial to improving the accuracy of the simulation.

[0071] It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from here.

[0072] In an embodiment of the present invention, a performance test system for a damping adjustable shock absorber is further provided. The performance test system for the damping adjustable shock absorber provided by the embodiment of the present invention will be introduced below.

[0073] Figure 2 is a structural block diagram of a performance test system for a damping adjustable shock absorber provided by an embodiment of the present invention. As Figure 2 shown, the system includes: a main control device 202, a vertical excitation device 204, a power supply device 206, a first signal acquisition device 208, a simulation device 210, and a second signal acquisition device 802. A description of the system will be given.

[0074] The main control device 202 is configured to obtain a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model;

[0075] The vertical excitation device 204 is connected to the main control device and is configured to transmit the first vertical excitation signal to the damping adjustable shock absorber to be tested;

[0076] The power supply device 206 is connected to the main control device and is configured to transmit the initial control current signal to the damping adjustable shock absorber to be tested;

[0077] The first signal acquisition device 208 is connected to the main control device and is configured to obtain first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal;

[0078] The simulation device 210 is connected to the first signal acquisition device and the vertical excitation device, and is configured to update the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; determine whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, then use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal.

[0079] Optionally, the damping adjustable shock absorber to be tested is connected to the vertical excitation device through an upper and lower hinge connection device.

[0080] As an alternative embodiment, the simulation device is further configured to construct an initial vehicle dynamics model corresponding to the damping adjustable shock absorber to be tested, and transmit the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model to the main control device.

[0081] It can be understood that the above simulation device is also connected to the main control device, and is configured to construct an initial vehicle dynamics model and transmit the first vertical excitation signal and the initial control current signal to the main control device.

[0082] As an alternative embodiment, the simulation device is further configured to update the initial control current signal and transmit the updated initial control current signal to the main control device.

[0083] Optionally, after the main control device obtains the initial control current signal updated by the simulation device, the performance test system of the damping adjustable shock absorber is further configured to transmit the updated initial control current signal and the first vertical excitation signal to the damping adjustable shock absorber to be tested, obtain the updated first load data, and update the vehicle dynamics model obtained previously by the simulation device based on the updated first load data until the first performance parameter of the updated vehicle dynamics model meets the first preset condition.

[0084] As an alternative embodiment, the performance test system of the damping adjustable shock absorber provided by the embodiments of the present invention further includes: a second signal acquisition device 802, connected to the main control device, for acquiring displacement data of the damping adjustable shock absorber to be tested under the control of a test control signal; the vertical excitation device is further configured to acquire second load data of the damping adjustable shock absorber to be tested under the control of the test control signal; the main control device is further configured to determine whether the second load data and the displacement data meet a second preset condition, and if the second load data and the displacement data meet the second preset condition, it is determined that the performance test of the damping adjustable shock absorber to be tested passes.

[0085] Optionally, after the main control device determines that the performance test of the damping adjustable shock absorber to be tested passes, the simulation device acquires the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model of the damping adjustable shock absorber to be tested.

[0086] Based on the above embodiments and alternative embodiments, the present invention proposes an alternative implementation manner. Figure 3 is a schematic diagram of the performance test system of the damping adjustable shock absorber provided by the embodiment of the present invention, as Figure 3 shown, wherein, the damping adjustable shock absorber is connected to the performance test system of the damping adjustable shock absorber by using upper and lower hinge connection devices, reducing the influence of lateral force on the damping adjustable shock absorber caused by misalignment during installation. The force sensor and the displacement sensor are signal acquisition devices, connected to the control device, and transmit force signals (load data) and displacement signals (displacement data) to the control device. A DC power supply device is used to send current to control the damping adjustable shock absorber, and the DC power supply device is connected to the control device and is controlled by an analog signal from the control device. The vertical excitation device is connected to the control device and is controlled by an analog signal from the control device, and transmits a vertical excitation signal to the damping adjustable shock absorber.

[0087] Figure 4 is a flowchart of the performance test system of the damping adjustable shock absorber provided by the embodiment of the present invention, and is based onFigure 3 The performance test system of the adjustable damping shock absorber shown in FIG. 1 is used as a sample. Figure 4 The specific implementation steps are as follows:

[0088] Step S401, installing the sample on the vertical excitation device through upper and lower hinge connections, and adjusting the sample piston to near the middle position of the stroke;

[0089] Step S402, writing a performance test program, writing a performance test program by controlling the device, the performance test program may be but not limited to a damping force test program;

[0090] Step S403, synchronously collect displacement data of the displacement sensor and load data of the force sensor. Further, the displacement and load data of the second cycle at each speed can be synchronously collected. The number of test data is set. For example, if the test data is not less than 200 groups, the sampling frequency of the test data is set according to this requirement;

[0091] Step S404, the control device automatically processes the data, generates an indicator diagram, obtains the compression damping force and the retest damping force, and further, in a plane rectangular coordinate system, plots the displacement and load data at different speeds at different currents into a test curve with the horizontal axis being the displacement and the vertical axis being the load, which is called an indicator diagram. The maximum damping force value in the restoring stroke of the shock absorber at each speed is extracted, and this value is the restoring damping force value; the maximum damping force value in the compression stroke of the shock absorber at each speed is extracted, and this value is the compression damping force value;

[0092] Step S405, judging whether the test results meet the requirements, is to judge whether the test sample meets the design requirements according to the curve continuity, fullness, and recovery and compression damping force values ​​in the dynamometer diagram under each current. If so, the following test is performed, otherwise, the sample is replaced for performance testing;

[0093] Step S406, installing the test sample and adjusting the piston of the sample to the same position as the vehicle dynamics model;

[0094] Step S407, establishing a vehicle dynamics model, and synchronously transmitting the road surface excitation displacement signal (vertical excitation signal) and the current signal received by the sample in the vehicle dynamics model to the control device, wherein the road surface excitation displacement signal is an excitation signal for simulating actual road conditions;

[0095] Step S408, the load data collected by the signal acquisition device is transmitted to the control device, and the load data is used in the vehicle dynamics model simulation. According to the simulation feedback results such as the vehicle body acceleration, the control strategy (current signal) of the sample is evaluated to achieve optimization.

[0096] In the performance test system of a damping adjustable shock absorber provided by an embodiment of the present invention, through a main control device, it is used to obtain a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model; a vertical excitation device, connected to the main control device, is used to transmit the first vertical excitation signal to the damping adjustable shock absorber to be tested; a power supply device, connected to the main control device, is used to transmit the initial control current signal to the damping adjustable shock absorber to be tested; a first signal acquisition device, connected to the main control device, is used to obtain first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; a simulation device, connected to the first signal acquisition device and the vertical excitation device, is used to update the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; judge whether the first performance parameter of the updated vehicle dynamics model meets a first preset condition; if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, then use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal. It achieves the purpose of optimizing the test of the damping adjustable shock absorber to be tested by combining simulation and physical objects, thereby realizing the technical effects of improving the performance test efficiency and test accuracy of the damping adjustable shock absorber, and further solving the technical problem of insufficient product verification caused by the difficulty of obtaining accurate simulation only by virtual verification of the damping adjustable shock absorber.

[0097] In this embodiment, a performance test device for a damping adjustable shock absorber is also provided. This device is used to implement the above embodiments and preferred implementation manners, and those that have been described will not be repeated. As used hereinafter, the terms "unit" and "device" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0098] According to an embodiment of the present invention, an apparatus embodiment for implementing the above performance test method of a damping adjustable shock absorber is also provided. Figure 5 It is a schematic diagram of a performance test device for a damping adjustable shock absorber according to an embodiment of the present invention. As Figure 5 shown, the above performance test device for a damping adjustable shock absorber includes: a first acquisition module 502, a transmission module 504, a second acquisition module 506, an update module 508, a judgment module 510, and a third acquisition module 512. The device will be described below.

[0099] The first acquisition module 502 is used to obtain a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model;

[0100] A transmission module 504, connected to the first acquisition module 502, is configured to transmit the first vertical excitation signal and the initial control current signal to the damping adjustable shock absorber to be measured;

[0101] A second acquisition module 506, connected to the transmission module 504, is configured to acquire first load data of the damping adjustable shock absorber to be measured under the control of the first vertical excitation signal and the initial control current signal;

[0102] An update module 508, connected to the second acquisition module 506, is configured to update the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model;

[0103] A judgment module 510, connected to the update module 508, is configured to judge whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition;

[0104] A third acquisition module 512, connected to the judgment module 510, is configured to use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal if the first performance parameter of the updated vehicle dynamics model meets the first preset condition.

[0105] It should be noted that the above-mentioned various modules can be implemented by software or hardware. For example, for the latter, it can be implemented in the following manner: the above-mentioned various modules can be located in the same processor; or, the above-mentioned various modules are located in different processors in any combination.

[0106] In a performance test device for a damping adjustable shock absorber provided by an embodiment of the present invention, by setting a first acquisition module 502, which is used to acquire a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model; a transmission module 504, connected to the first acquisition module 502, which is used to transmit the first vertical excitation signal and the initial control current signal to the damping adjustable shock absorber to be tested; a second acquisition module 506, connected to the transmission module 504, which is used to acquire first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; an update module 508, connected to the second acquisition module 506, which is used to update the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; a judgment module 510, connected to the update module 508, which is used to judge whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; a third acquisition module 512, connected to the judgment module 510, which is used to, if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal. The purpose of optimizing the test of the damping adjustable shock absorber to be tested in a way that combines simulation and physical objects is achieved, thereby realizing the technical effect of improving the performance test efficiency and test accuracy of the damping adjustable shock absorber, and further solving the technical problem that due to the fact that it is difficult to obtain accurate simulation only by virtual verification of the damping adjustable shock absorber, the product verification is insufficient.

[0107] It should be noted here that the above-mentioned first acquisition module 502, transmission module 504, second acquisition module 506, update module 508, judgment module 510, and third acquisition module 512 correspond to steps S102 to step S112 in the embodiment. The examples and application scenarios implemented by the above-mentioned modules and the corresponding steps are the same, but are not limited to the content disclosed in the above-mentioned embodiment. It should be noted that the above-mentioned modules, as a part of the device, can run in a computer terminal.

[0108] It should be noted that the optional or preferred implementation manners of this embodiment can refer to the relevant descriptions in the embodiment, and will not be repeated here.

[0109] The above-mentioned performance test device for the damping adjustable shock absorber may further include a processor and a memory. The above-mentioned first acquisition module 502, transmission module 504, second acquisition module 506, update module 508, judgment module 510, third acquisition module 512, etc. are all stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to implement corresponding functions.

[0110] The processor contains cores, which retrieve corresponding program units from the memory. One or more cores can be set. The memory may include non-permanent memory in a computer-readable medium, forms such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. The memory includes at least one memory chip.

[0111] According to an embodiment of the present application, an embodiment of a non-volatile storage medium is also provided. Optionally, in this embodiment, the non-volatile storage medium includes a stored program, wherein when the program runs, it controls the device where the non-volatile storage medium is located to execute any one of the performance test methods of the damped adjustable shock absorber.

[0112] Optionally, in this embodiment, the non-volatile storage medium can be located in any one of the computer terminals in a computer terminal group in a computer network, or in any one of the mobile terminals in a mobile terminal group. The non-volatile storage medium includes a stored program.

[0113] As Figure 6 shown, an embodiment of the present invention provides an electronic device. The electronic device 10 includes a processor, a memory, and a program stored on the memory and executable on the processor. When the processor executes the program, the following steps are implemented: obtaining a first vertical excitation signal and an initial control current signal of the damped adjustable shock absorber to be tested in an initial vehicle dynamics model; transmitting the first vertical excitation signal and the initial control current signal to the damped adjustable shock absorber to be tested; obtaining first load data of the damped adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; updating the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; determining whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, then using the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal. The device herein can be a server, a PC, etc.

[0114] The present invention also provides a computer program product which, when executed on a data processing device, is adapted to execute a program initialized with the following method steps: obtaining a first vertical excitation signal and an initial control current signal of a damping adjustable shock absorber to be tested in an initial vehicle dynamics model; transmitting the first vertical excitation signal and the initial control current signal to the damping adjustable shock absorber to be tested; obtaining first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; updating the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; determining whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, taking the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal.

[0115] Optionally, the above computer program product is also adapted to execute a program initialized with the following method steps: if the first performance parameter of the updated vehicle dynamics model does not meet the first preset condition, it further includes: by updating the initial control current signal, transmitting the updated initial control current signal and the first vertical excitation signal to the damping adjustable shock absorber to be tested to obtain updated first load data, and updating the previously obtained vehicle dynamics model based on the updated first load data until the first performance parameter of the updated vehicle dynamics model meets the first preset condition.

[0116] Optionally, the above computer program product is also adapted to execute a program initialized with the following method steps: obtaining a second vertical excitation signal and a test control signal; transmitting the second vertical excitation signal and the test control signal to the damping adjustable shock absorber to be tested; obtaining second load data and displacement data of the damping adjustable shock absorber to be tested under the control of the test control signal; determining whether the second load data and the displacement data meet a second preset condition, if the second load data and the displacement data meet the second preset condition, determining that the performance test of the damping adjustable shock absorber to be tested passes; after determining that the performance test of the damping adjustable shock absorber to be tested passes, obtaining the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model of the damping adjustable shock absorber to be tested.

[0117] Optionally, the above computer program product is also adapted to execute a program initialized with the following method steps: constructing a test curve based on multiple sets of second load data and multiple sets of displacement data; determining a rebound damping force value and a compression damping force value corresponding to the damping adjustable shock absorber to be tested based on the second load data; determining whether the test curve, the rebound damping force value and the compression damping force value meet the second preset condition; if the test curve, the rebound damping force value and the compression damping force value all meet the second preset condition, determining that the performance test of the damping adjustable shock absorber to be tested passes.

[0118] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0119] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0120] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0121] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are performed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0122] In a typical configuration, a computing device includes one or more processors (CPUs), an input / output interface, a network interface, and memory.

[0123] The memory may include non-permanent memory in the computer-readable medium, in the form of random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0124] A computer-readable medium includes both permanent and non-permanent, removable and non-removable media that can implement information storage by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to store information accessible by a computing device. As defined herein, a computer-readable medium does not include transitory computer-readable media, such as modulated data signals and carrier waves.

[0125] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising the element.

[0126] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0127] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A performance test method for a damping adjustable shock absorber, characterized in that, it includes: Obtain the first vertical excitation signal and the initial control current signal of the damping adjustable shock absorber to be tested in the initial vehicle dynamics model; Transmit the first vertical excitation signal and the initial control current signal to the damping adjustable shock absorber to be tested; Obtain the first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; Update the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; Judge whether the first performance parameter of the updated vehicle dynamics model meets the first preset condition; If the first performance parameter of the updated vehicle dynamics model meets the first preset condition, use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal; The method further includes: Obtain a second vertical excitation signal and a test control signal; Transmit the second vertical excitation signal and the test control signal to the damping adjustable shock absorber to be tested; Obtain the second load data and displacement data of the damping adjustable shock absorber to be tested under the control of the test control signal; Judge whether the second load data and the displacement data meet the second preset condition. If the second load data and the displacement data meet the second preset condition, determine that the performance test of the damping adjustable shock absorber to be tested passes; After determining that the performance test of the damping adjustable shock absorber to be tested passes, obtain the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model of the damping adjustable shock absorber to be tested.

2. The method according to claim 1, characterized in that, if the first performance parameter of the updated vehicle dynamics model does not meet the first preset condition, the method further includes: By updating the initial control current signal, transmit the updated initial control current signal and the first vertical excitation signal to the damping adjustable shock absorber to be tested to obtain updated first load data, and update the previously obtained vehicle dynamics model based on the updated first load data until the first performance parameter of the updated vehicle dynamics model meets the first preset condition.

3. The method according to claim 1, characterized in that, the judgment of whether the second load data and the displacement data meet the second preset condition. If the second load data and the displacement data meet the second preset condition, determine that the performance test of the damping adjustable shock absorber to be tested passes, includes: Construct a test curve based on multiple groups of the second load data and multiple groups of the displacement data; Determine the corresponding rebound damping force value and compression damping force value of the damping adjustable shock absorber to be tested based on the second load data; Judge whether the test curve, the rebound damping force value and the compression damping force value meet the second preset condition; If the test curve, the restored damping force value, and the compression damping force value all meet the second preset condition, it is determined that the performance test of the damping adjustable shock absorber to be tested passes.

4. A performance test system for a damping adjustable shock absorber, characterized in that, it includes: A main control device for obtaining a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model; A vertical excitation device connected to the main control device for transmitting the first vertical excitation signal to the damping adjustable shock absorber to be tested; A power supply device connected to the main control device for transmitting the initial control current signal to the damping adjustable shock absorber to be tested; A first signal acquisition device connected to the main control device for obtaining first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; A simulation device connected to the first signal acquisition device and the vertical excitation device for updating the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; determining whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; If the first performance parameter of the updated vehicle dynamics model meets the first preset condition, the current control current signal corresponding to the updated vehicle dynamics model is used as the optimal control current signal; The system further includes: A second signal acquisition device connected to the main control device for obtaining displacement data of the damping adjustable shock absorber to be tested under the control of a test control signal; The vertical excitation device is further used for obtaining second load data of the damping adjustable shock absorber to be tested under the control of the test control signal; The main control device is further used for determining whether the second load data and the displacement data meet a second preset condition. If the second load data and the displacement data meet the second preset condition, it is determined that the performance test of the damping adjustable shock absorber to be tested passes.

5. The system according to claim 4, characterized in that, it includes: The simulation device is further used for constructing the initial vehicle dynamics model corresponding to the damping adjustable shock absorber to be tested, and transmitting the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model to the main control device.

6. The system according to claim 4, characterized in that, it includes: The simulation device is further used for updating the initial control current signal and transmitting the updated initial control current signal to the main control device.

7. A performance test device for a damping adjustable shock absorber, characterized in that, it includes: A first acquisition module for obtaining a first vertical excitation signal and an initial control current signal of the damping adjustable shock absorber to be tested in an initial vehicle dynamics model; A transmission module for transmitting the first vertical excitation signal and the initial control current signal to the damping adjustable shock absorber to be tested; A second acquisition module, configured to acquire first load data of the damping adjustable shock absorber to be tested under the control of the first vertical excitation signal and the initial control current signal; An update module, configured to update the initial vehicle dynamics model according to the first load data to obtain an updated vehicle dynamics model; A judgment module, configured to judge whether a first performance parameter of the updated vehicle dynamics model meets a first preset condition; A third acquisition module, if the first performance parameter of the updated vehicle dynamics model meets the first preset condition, then use the current control current signal corresponding to the updated vehicle dynamics model as the optimal control current signal; The device is further configured to: Acquire a second vertical excitation signal and a test control signal; Transmit the second vertical excitation signal and the test control signal to the damping adjustable shock absorber to be tested; Acquire second load data and displacement data of the damping adjustable shock absorber to be tested under the control of the test control signal; Judge whether the second load data and the displacement data meet a second preset condition. If the second load data and the displacement data meet the second preset condition, it is determined that the performance test of the damping adjustable shock absorber to be tested passes; After determining that the performance test of the damping adjustable shock absorber to be tested passes, acquire the first vertical excitation signal and the initial control current signal corresponding to the initial vehicle dynamics model of the damping adjustable shock absorber to be tested.

8. A non-volatile storage medium, characterized in that, The non-volatile storage medium stores multiple instructions, and the instructions are adapted to be loaded and executed by a processor to perform the performance test method of the damping adjustable shock absorber according to any one of claims 1 to 3.

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