Suspension system bounce checking method, device and apparatus

Abstract

The application provides a suspension system bounce checking method, device and equipment, and belongs to the technical field of vehicle detection, wherein the suspension system comprises a shaft rod of a driving shaft and a sliding joint arranged at both ends of the shaft rod, the method comprises the following steps: obtaining simulation simulation data of the suspension system in a plurality of driving scenes in a sliding joint displacement simulation form, the simulation simulation data comprises a plurality of displacement distances of the sliding joint and a swing angle corresponding to each displacement distance; verifying whether the plurality of displacement distances and the corresponding swing angles meet a checking standard corresponding to the sliding joint displacement simulation form; wherein the sliding joint displacement simulation form comprises a displacement simulation form of displacement of the sliding joint at at least one end of the shaft rod. The suspension system bounce checking method provided by the application can check and detect the risk of disengagement and top dead center of the sliding joints at both ends of the double-sliding universal joint type driving shaft, and facilitates efficient and rapid completion of the checking operation.

Description

Technical Field

[0001] This application relates to the field of vehicle testing technology, and in particular to a method, apparatus and equipment for verifying suspension system bounce. Background Technology

[0002] When designing new vehicles, automakers need to perform drive shaft runout checks on the suspension system. Currently, manufacturers mainly use the CATIA (Computer Aided Three-dimensional Interactive Application) system for simulation modeling, such as using the DMU (Digital Mockup) module in the CATIA system to check drive shaft runout.

[0003] Currently, drive shaft runout verification is generally applicable to scenarios where one end of the drive shaft is a fixed universal joint (a universal joint that only produces a swing angle and does not produce displacement) and the other end is a sliding universal joint (a universal joint that produces both a swing angle and displacement). When verifying a drive shaft assembly with dual sliding universal joints, it is difficult to specifically verify the displacement of the sliding universal joints at both ends of the shaft because both ends of the shaft are equipped with sliding universal joints. This makes it difficult to guarantee the accuracy of the simulation results and does not meet the needs of rapid and high-quality development. Summary of the Invention

[0004] In view of this, the purpose of this application is to propose a method, apparatus and equipment for calibrating suspension system bounce, so as to solve the problem of inconvenience in calibrating double slip universal joint drive shaft assembly in the prior art.

[0005] To achieve the above objectives, this application provides a method for checking the bounce of a suspension system. The suspension system includes a drive shaft and sliding joints disposed at both ends of the drive shaft. The method includes:

[0006] The simulation data of the suspension system in various driving scenarios under the form of a sliding joint displacement simulation are obtained. The simulation data includes multiple displacement distances of the sliding joint and the sway angle corresponding to each displacement distance.

[0007] Verify whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the displacement simulation form of the sliding joint;

[0008] The displacement simulation of the sliding joint includes a displacement simulation in which the sliding joint at at least one of the two ends of the shaft is displaced.

[0009] Furthermore, the displacement simulation of the sliding joint includes:

[0010] The first displacement simulation form is characterized by the sliding joint near the hub end of the shaft not undergoing displacement, while the sliding joint near the power end of the shaft undergoing displacement; and / or,

[0011] The second displacement simulation form is characterized by displacement of the sliding joint near the hub end of the shaft and no displacement of the sliding joint near the power end of the shaft.

[0012] Furthermore, the verification of whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the displacement simulation form of the sliding joint includes:

[0013] Obtain the theoretical displacement and swing angle curve of the sliding joint;

[0014] The actual displacement swing angle curve of the sliding joint is established based on the simulation data under the displacement simulation form.

[0015] The verification results were obtained by comparing the actual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve.

[0016] Furthermore, establishing the actual displacement swing angle curve of the sliding joint based on the displacement simulation form and simulation data includes:

[0017] In response to determining whether the sliding joint is in the first displacement simulation mode or the second displacement simulation mode, a residual displacement swing angle curve of the sliding joint that has undergone displacement is established based on the simulation data.

[0018] The margin displacement swing angle curve is the actual displacement swing angle curve of the sliding joint with the displacement distance shortened by half and the corresponding swing angle unchanged.

[0019] Furthermore, the comparison of the actual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve to obtain the verification result includes:

[0020] In response to determining that the sliding joint is in the first displacement simulation mode or the second displacement simulation mode, a first verification standard is selected for verification, and the verification result is obtained; the first verification standard is: the margin displacement swing angle curve of the sliding joint that has undergone displacement falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint.

[0021] Furthermore, the sliding joint displacement simulation form also includes a third displacement simulation form, in which the sliding joints at both ends of the shaft undergo displacement;

[0022] The verification results are obtained by comparing the actual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve, including:

[0023] In response to the determination that the sliding joint is in the third displacement simulation form, the second verification standard is selected for verification and the verification result is obtained; the second verification standard is: the actual displacement swing angle curve of the sliding joint that has displacement falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint.

[0024] Further, the verification of whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the displacement simulation form of the sliding joint includes:

[0025] In response to the determination that multiple displacement distances and corresponding swing angles do not conform to the verification criteria corresponding to the displacement simulation form of the slip joint, the relevant configuration parameters of the suspension model are adjusted, including the type of slip joint or hard point coordinates;

[0026] Repeatedly verify whether the displacement distances and corresponding swing angles meet the verification criteria corresponding to the displacement simulation form of the sliding joint.

[0027] Furthermore, the acquisition of simulation data of the suspension system in various driving scenarios under a sliding joint displacement simulation includes, prior to:

[0028] Obtain the coordinates of the hard points of the entire vehicle, and build the suspension model based on the hard point coordinates;

[0029] The suspension system is simulated under different driving scenarios with different vehicle speeds, road conditions, or loads.

[0030] Based on the same inventive concept, this application also provides a suspension system bounce verification device, comprising:

[0031] The measurement module is configured to acquire simulation data of the suspension system in various driving scenarios under a sliding joint displacement simulation mode. The simulation data includes multiple displacement distances of the sliding joint and the sway angle corresponding to each displacement distance.

[0032] The data processing module is configured to verify whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the sliding joint displacement simulation form, wherein the sliding joint displacement simulation form includes a displacement simulation form in which the sliding joint at least one of the two ends of the shaft undergoes displacement.

[0033] Based on the same inventive concept, this disclosure also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the method described above when executing the computer program.

[0034] As can be seen from the above, the suspension system bounce verification method provided in this application obtains simulation data of the suspension system, which includes multiple displacement distances of the sliding joint and the swing angle corresponding to each displacement distance. Then, it verifies whether the displacement distance and the corresponding swing angle meet the corresponding verification standards. Since the sliding joints at both ends of the axle have different bounce patterns during the simulation process, setting different verification standards to verify the sliding joints can effectively improve the accuracy of the simulation verification of the sliding joints. This is beneficial for detecting and verifying the risk of sliding joint disengagement and jamming in different scenarios, as well as the dynamic and static clearances of surrounding components, filling the gap in the verification of double-sliding universal joint drive shafts. In addition, the verification method of this application can directly call existing suspension and drive shaft models for verification operations, thereby completing the verification process quickly and efficiently, saving development time. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the double sliding universal joint drive shaft transmission architecture in an embodiment of this application;

[0037] Figure 2 This is a flowchart illustrating the steps of the suspension system bounce verification method in the embodiments of this application;

[0038] Figure 3 This is a flowchart illustrating the steps of the suspension system bounce verification method in the embodiments of this application;

[0039] Figure 4 This is a schematic diagram showing the positions of the residual displacement swing angle curve and the theoretical displacement swing angle curve of the sliding joint under the first verification standard in the embodiments of this application;

[0040] Figure 5 This is a schematic diagram showing the positions of the actual displacement swing angle curve and the theoretical displacement swing angle curve of the sliding joint in the third verification standard of this application embodiment;

[0041] Figure 6 This is a flowchart illustrating the overall verification method in the embodiments of this application;

[0042] Figure 7 This is a schematic diagram showing the positions of the actual displacement swing angle curve and the theoretical displacement swing angle curve of the sliding joint under the second verification standard in this embodiment of the application;

[0043] Figure 8This is a schematic diagram of the suspension system bounce verification device in the embodiments of this application;

[0044] Figure 9 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0046] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0048] One or more embodiments of this application provide a method for checking the bounce of a suspension system, which belongs to the field of vehicle testing technology. The suspension system includes a drive shaft 2 and sliding joints disposed at both ends of the drive shaft 2.

[0049] It should be noted here that the drive shaft used for verification mentioned in this application is generally the rear axle of a vehicle, which adopts a double-slip universal joint drive shaft transmission architecture. For this transmission architecture, such as... Figure 1 As shown, the sequence from the outside to the inside along the width of the vehicle is: wheel hub end 1 - sliding joint - axle 2 - sliding joint - drive shaft power end 3. The sliding joint near wheel hub end 1 or near drive shaft power end 3 can both generate a sway angle and perform axial sliding. This arrangement can compensate in real time for changes in the relative distance between the wheel and the power end caused by different loads or road bumps. In this application embodiment, a double-sliding universal joint drive shaft transmission architecture is used for verification.

[0050] Furthermore, in some embodiments, the suspension system bounce verification method is based on steps such as simulation verification using finite element software. The finite element software can be ABAQUS software, and for the DMU model building of the suspension model described in this application, CATIA software can be used. This will not be elaborated further in the embodiments.

[0051] like Figure 2 As shown, the suspension system bounce verification method provided in this application includes:

[0052] S101, acquire simulation data of the suspension system in various driving scenarios under a sliding joint displacement simulation mode. The simulation data includes multiple displacement distances of the sliding joint and the swing angle corresponding to each displacement distance. The sliding joint displacement simulation mode includes a displacement simulation mode in which the sliding joint at least one of the two ends of the axle is displaced.

[0053] In step S101 above, the figure shows the positional relationship between the two sliding joints between the tire hub end 1 and the drive shaft. In the figure, the intersection of the axis of the drive shaft power end 3 and the shaft 2 is the sliding joint A near the drive shaft power end 3, and the intersection of the bearing axis of the hub end 1 and the shaft 2 is the sliding joint B near the hub end 1. There is a swing angle α between the axis of the drive shaft power end 3 and the shaft 2, and a swing angle β between the bearing axis of the hub end 1 and the shaft 2.

[0054] When the sliding joint A near the drive shaft power end 3 is displaced, the corresponding swing angle α of the sliding joint A will also change accordingly. When the sliding joint B near the wheel hub end 1 is axially displaced, the corresponding swing angle β of the sliding joint B will also change accordingly. For different driving scenarios, the displacement distance and the corresponding swing angles α and β of the sliding joint A and the sliding joint B will also change.

[0055] In some embodiments, the displacement simulation of the sliding joint includes:

[0056] The first displacement simulation mode is characterized by the sliding joint near the hub end 1 of the shaft not undergoing displacement, and the sliding joint near the power end of the shaft undergoing displacement; and / or,

[0057] The second displacement simulation form is characterized by displacement of the sliding joint near the hub end 1 of the shaft, and no displacement of the sliding joint near the power end of the shaft; and / or,

[0058] The third displacement simulation form is in which the sliding joints at both ends of the shaft are displaced.

[0059] By employing different displacement simulation methods and conducting simulations under different driving scenarios, the corresponding displacement distance and swing angle of the sliding joint can be obtained. This can encompass the working state of the sliding joint under different vehicle conditions or driving scenarios as much as possible, thereby helping to ensure the verification accuracy of the sliding joint.

[0060] In some embodiments, prior to step S101 above, that is, before acquiring simulation data of the suspension system in various driving scenarios under a sliding joint displacement simulation, the process includes:

[0061] S1011, Obtain the coordinates of the hard points of the entire vehicle, and build the suspension model based on the coordinates of the hard points;

[0062] S1012 simulates the suspension system by setting different driving scenarios under different vehicle speeds, road conditions, or loads.

[0063] In some embodiments, in step S1011 above, for example, when building a suspension model in CATIA software, taking a multi-link suspension as an example, the following steps are followed when modeling a multi-link suspension:

[0064] ①Build the skeleton of each component model based on the coordinates of the suspension hard points;

[0065] ② Set the frame to be fixed, and set the gearbox to be rigidly connected to it;

[0066] ③ Set the hub center node to the frame as a "prism" connection, and use the wheel center's hop travel as the drive command;

[0067] ④ Set the center node of the steering knuckle wheel and the wheel hop as a "point-surface" connection;

[0068] ⑤ Set the connection points between the outer suspension point and each steering knuckle to a "spherical" connection;

[0069] ⑥ Set the connection points between the suspension inner points and the vehicle frame to "U-shaped engagement";

[0070] ⑦ Set the center node of the wheel hub end 1 / power end sliding knuckle to the center node of the steering knuckle / transmission center node as a "spherical" connection;

[0071] ⑧ Set the center node of the slip joint at the power end / wheel hub end 1 to the gearbox axis / steering knuckle axis as a "point curve" connection.

[0072] The steps for building the model described above are only illustrative examples. The suspension model can also be built using other 3D modeling software.

[0073] In some embodiments, in step S1012, for different driving scenarios, the 28 operating conditions (a test cycle consisting of 28 different vehicle speeds and loads, including idling, acceleration, constant speed, and deceleration) in the domestic general technical standard GMW14116 can be used as a reference. Specifically, this is reflected in the position changes of the suspension system's center of gravity in six directions in three-dimensional space during the 28 operating conditions, obtaining multiple sets of simulation data on displacement distance and sway angle. This setting can incorporate the parameter changes of the suspension system under different operating conditions into the drive shaft verification process, which is beneficial for more accurately analyzing the impact of different driving scenarios on the drive shaft and improving the effectiveness and objectivity of the drive shaft simulation model results.

[0074] In some embodiments, the suspension system bounce verification method provided in this application further includes:

[0075] S102, verify whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the displacement simulation form of the sliding joint.

[0076] In step S102 above, as Figure 3 As shown, it specifically includes:

[0077] S1021, obtain the theoretical displacement angle curve of the sliding joint;

[0078] S1022, Establish the actual displacement swing angle curve of the sliding joint based on the simulation data under the displacement simulation form;

[0079] S1023, the actual displacement swing angle curve of the sliding joint is compared with the theoretical displacement swing angle curve to obtain the verification result.

[0080] In some embodiments, for step S1021, the theoretical displacement swing angle curve of the sliding joint is obtained through the product attributes of the sliding joint itself and the product-related information provided by the developer. When obtaining the theoretical displacement swing angle curve, the product attributes or related information of the sliding joint can be referenced, and several displacement distances can be selected to measure the corresponding swing angle, thereby drawing the theoretical displacement swing angle curve.

[0081] Furthermore, step S1021 also includes:

[0082] S1021a, in response to determining whether the sliding joint is in the first displacement simulation mode or the second displacement simulation mode, establish the residual displacement swing angle curve of the sliding joint that has undergone displacement based on the simulation data;

[0083] The margin displacement swing angle curve is the actual displacement swing angle curve of the sliding joint with the displacement distance shortened by half and the corresponding swing angle unchanged.

[0084] In step S1021a, when the sliding joint is in the first displacement simulation mode or the second displacement simulation mode, it means that the simulated displacement mode is set so that only the sliding joint at one end of the shaft 2 slips, and the sliding joint at the other end of the shaft 2 does not slip but only produces a swing angle. In actual driving scenarios, under the premise that the vehicle is equipped with a double sliding drive shaft structure, it is rare for the sliding joint at only one end of the shaft 2 to slip. Therefore, setting the margin displacement swing angle curve can compensate for the simulation error of the sliding joint under the first displacement simulation mode or the second displacement simulation mode, thereby further improving the accuracy of the simulation data.

[0085] In some embodiments, for step S1022, each displacement simulation form will be calibrated with several displacement distances and swing angles corresponding to different driving scenarios. For each different displacement simulation form, the actual displacement swing angle curves generated are different. Therefore, setting multiple different verification standards to verify the sliding joint under different displacement simulation forms can effectively improve the verification accuracy and reduce the verification error.

[0086] In some embodiments, when comparing the actual displacement angle curve of the sliding joint with the theoretical displacement angle curve in step S1023, the actual displacement angle curve and the theoretical displacement angle curve are placed in the same coordinate system for comparison, so that the relationship between the actual displacement angle curve and the theoretical displacement angle curve can be observed intuitively.

[0087] like Figure 4 As shown, based on step S1023, the specific verification steps are as follows:

[0088] S1023a, in response to determining that the sliding joint is in the first displacement simulation mode or the second displacement simulation mode, a first verification standard is selected for verification, and the verification result is obtained; the first verification standard is: the margin displacement swing angle curve of the sliding joint that has undergone displacement falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint;

[0089] In the above verification step S1023a, when the sliding joint is verified in the first displacement simulation form or the second displacement simulation form, it means that only the sliding joint at one end of the shaft 2 is displaced, while the sliding joint at the other end is not displaced but only has a swing angle. However, in actual driving scenarios, when a vehicle is equipped with a double sliding drive shaft structure, it is rare for the sliding joint at only one end of the shaft 2 to slip. The sliding joint, which should theoretically not be displaced, will also be affected by the actual driving scenario and undergo partial relative displacement. Therefore, comparing the residual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve after reserving a safety margin can effectively compensate for the displacement error of the sliding joint that is theoretically set to not be displaced. Combined with the actual consideration of the sliding joint displacement swing angle verification standard, this provides technical support for the verification of the sliding joint of the double sliding drive shaft.

[0090] like Figure 5 As shown, in some embodiments, to determine whether the sliding joint is in the first displacement simulation form or the second displacement simulation form, a third verification standard can also be used for verification, and the verification result can be obtained; the third verification standard is: the actual displacement swing angle curve of the sliding joint that has undergone displacement falls into the theoretical displacement swing angle curve of the sliding joint.

[0091] It can be seen from this that the third verification standard does not take into account the actual displacement factor of the sliding joint that does not undergo displacement. Therefore, the verification accuracy of the first verification standard is higher than that of the third verification standard. The third verification standard can be used as a pre-verification operation for the first verification standard. The sliding joint can be pre-adjusted during the verification process of the third verification standard, thereby minimizing the adjustment steps of the sliding joint during the verification process of the first verification standard, which is conducive to speeding up the verification process and improving the deployment speed.

[0092] It should be noted that, as Figure 6 As shown, in some embodiments, the third verification standard can be used as the first verification process. After the sliding joint meets the third verification standard under simulated displacement conditions, the subsequent verification process with reserved safety margin is then carried out.

[0093] In addition, such as Figure 7 As shown, based on step S1023, the specific verification steps also include:

[0094] S1023b, in response to determining that the sliding joint is in the third displacement simulation form, the second verification standard is selected for verification and the verification result is obtained; the second verification standard is: the actual displacement swing angle curve of the sliding joint that has displacement falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint.

[0095] In the above verification step S1023b, the third displacement simulation form is the form in which both sliding joints at both ends of shaft 2 are displaced. For the third displacement simulation form, when the two sliding joints at both ends of shaft 2 are displaced, the displacements of the two sliding joints are the same. Therefore, the actual displacement swing angle curve of the sliding joint falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint, which satisfies the verification standard of the sliding joint.

[0096] It should be noted that in verification steps S1023a and S1023b, the theoretical displacement angle curve after reserving a safety margin for the sliding joint refers to: based on the drawn theoretical displacement angle curve, redrawing the curve after reserving a safety margin for the displacement distance and angle for several points corresponding to the theoretical displacement angle curve. Here, the safety margin can be set according to relevant factors such as different vehicle models and types of sliding joints. The curve after reserving a safety margin is a theoretical displacement angle curve scaled proportionally. Furthermore, the displacement angle curve mentioned in this embodiment refers to a curve in a coordinate system where the horizontal axis is the displacement distance and the vertical axis is the angle; this will not be elaborated further in this embodiment.

[0097] In some embodiments, still as Figure 6 As shown, after step S103, the following steps are also included:

[0098] S104, in response to determining that multiple displacement distances and corresponding swing angles do not conform to the verification criteria corresponding to the displacement simulation form of the slip joint, the relevant configuration parameters of the suspension model are adjusted, including the type of slip joint or hard point coordinates;

[0099] S105, repeatedly verify whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the displacement simulation form of the sliding joint.

[0100] In step S104 above, multiple displacement distances and corresponding swing angles do not conform to the verification criteria corresponding to the displacement simulation form of the sliding joint, including the following scenarios:

[0101] (a) When the sliding joint is in the first displacement simulation mode or the second displacement simulation mode, at least some nodes of the margin displacement swing angle curve of the sliding joint exceed the range of the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint.

[0102] (b) When the sliding joint is in the first displacement simulation mode or the second displacement simulation mode, at least some nodes of the actual displacement swing angle curve of the sliding joint exceed the range of the theoretical displacement swing angle curve of the sliding joint;

[0103] (c) When the sliding joints at both ends of shaft 2 are in the third displacement simulation mode, at least some nodes of the actual displacement swing angle curve of one of the sliding joints exceed the range of the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint.

[0104] During the verification process, when the above scenarios occur, developers can promptly adjust and improve the relevant configuration parameters of the suspension model so that the slip joint of the adjusted and improved suspension model can meet the verification standards. When the verification standards are met, the entire verification process is complete.

[0105] It should be noted that, in addition to the type of sliding joint or the coordinates of hard points, the aforementioned configuration parameters can also be the position coordinates of the sliding joint and the key parameters of the relevant components that affect the drive shaft runout verification. This embodiment is only used as an example.

[0106] It should be noted that the method in this embodiment can be executed by a single device, such as a computer or server. The method can also be applied in a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method in this embodiment, and the multiple devices will interact with each other to complete the method described.

[0107] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0108] Based on the same inventive concept, and corresponding to any of the above embodiments, this application also provides a suspension system bounce verification device.

[0109] refer to Figure 8 The suspension system bounce verification device includes:

[0110] Measurement module 4 is configured to acquire simulation data of the suspension system in various driving scenarios under a sliding joint displacement simulation mode. The simulation data includes multiple displacement distances of the sliding joint and the swing angle corresponding to each displacement distance.

[0111] Data processing module 5 is configured to verify whether the multiple displacement distances and corresponding swing angles meet the verification criteria corresponding to the sliding joint displacement simulation form, wherein the sliding joint displacement simulation form includes a displacement simulation form in which the sliding joint at least one of the two ends of the shaft undergoes displacement.

[0112] In some embodiments, the data processing module further includes:

[0113] The first data unit is configured to acquire the theoretical displacement angle curve of the sliding joint;

[0114] The second data unit is configured to establish the actual displacement swing angle curve of the sliding joint based on the simulation data under a displacement simulation mode.

[0115] The comparison unit is configured to compare the actual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve to obtain the verification result.

[0116] In some embodiments, the comparison unit further includes:

[0117] The first comparison subunit is configured to, in response to determining that the sliding joint is in a first displacement simulation mode or a second displacement simulation mode, select a first verification standard for verification and obtain the verification result; the first verification standard is: the margin displacement swing angle curve of the sliding joint that has undergone displacement falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint;

[0118] The second comparison subunit is configured to, in response to determining that the sliding joint is in the third displacement simulation form, select the second verification standard for verification and obtain the verification result; the second verification standard is: the actual displacement swing angle curve of the sliding joint that has undergone displacement falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint.

[0119] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0120] The apparatus described above is used to implement the corresponding suspension system bounce verification method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0121] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the suspension system bounce verification method described in any of the above embodiments.

[0122] Figure 9 This embodiment illustrates a more specific hardware structure of an electronic device, which may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0123] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0124] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0125] The input / output interface 1030 is used to connect input / output modules to enable information input and output. Input / output modules can be configured as components within the device. Figure 9 (Not shown in the image) It can also be connected to external devices to provide corresponding functions. Input devices may include keyboards, mice, touch screens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0126] Communication interface 1040 is used to connect to the communication module ( Figure 9 (Not shown in the image) to enable communication and interaction between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0127] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0128] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0129] The electronic devices described above are used to implement the corresponding suspension system bounce verification method in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0130] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the suspension system bounce verification method as described in any of the above embodiments.

[0131] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. 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, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0132] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the suspension system bounce verification method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0133] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0134] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0135] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0136] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A method for checking the bounce of a suspension system, the suspension system comprising a drive shaft and sliding joints disposed at both ends of the drive shaft, characterized in that, The method includes: The simulation data of the suspension system in various driving scenarios under the form of a sliding joint displacement simulation are obtained. The simulation data includes multiple displacement distances of the sliding joint and the sway angle corresponding to each displacement distance. Verifying whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the displacement simulation form of the sliding joint includes: obtaining the theoretical displacement swing angle curve of the sliding joint; in response to determining that the sliding joint is in the first displacement simulation form or the second displacement simulation form, establishing the margin displacement swing angle curve of the sliding joint that has undergone displacement based on the simulation data; and comparing the actual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve to obtain the verification result. The displacement simulation forms of the sliding joint include a first displacement simulation form and a second displacement simulation form. The first displacement simulation form is that the sliding joint near the hub end of the shaft does not displace, while the sliding joint near the power end of the shaft displaces. The second displacement simulation form is that the sliding joint near the hub end of the shaft displaces, while the sliding joint near the power end of the shaft does not displace. The margin displacement swing angle curve is the curve where the displacement distance of the actual displacement swing angle curve of the sliding joint is shortened by half, and the corresponding swing angle remains unchanged.

2. The suspension system bounce verification method according to claim 1, characterized in that, The verification results are obtained by comparing the actual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve, including: In response to determining that the sliding joint is in the first displacement simulation mode or the second displacement simulation mode, a first verification standard is selected for verification, and the verification result is obtained; the first verification standard is: the margin displacement swing angle curve of the sliding joint that has undergone displacement falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint.

3. The suspension system bounce verification method according to claim 1, characterized in that, The sliding joint displacement simulation method also includes a third displacement simulation method, in which the sliding joints at both ends of the shaft are displaced; The verification results are obtained by comparing the actual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve, including: In response to the determination that the sliding joint is in the third displacement simulation form, the second verification standard is selected for verification and the verification result is obtained; the second verification standard is: the actual displacement swing angle curve of the sliding joint that has displacement falls into the theoretical displacement swing angle curve after the reserved safety margin of the sliding joint.

4. The suspension system bounce verification method according to claim 1, characterized in that, The step of verifying whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the displacement simulation form of the sliding joint includes: In response to the determination that multiple displacement distances and corresponding swing angles do not conform to the verification criteria corresponding to the displacement simulation form of the slip joint, the relevant configuration parameters of the suspension model are adjusted, including the type of slip joint or hard point coordinates; Repeatedly verify whether the displacement distances and corresponding swing angles meet the verification criteria corresponding to the displacement simulation form of the sliding joint.

5. The suspension system bounce verification method according to claim 1, characterized in that, The acquisition of simulation data of the suspension system in various driving scenarios under a sliding joint displacement simulation includes: Obtain the coordinates of the hard points of the entire vehicle, and build the suspension model based on the hard point coordinates; The suspension system is simulated under different driving scenarios with different vehicle speeds, road conditions, or loads.

6. A suspension system bounce verification device, characterized in that, include: The measurement module is configured to acquire simulation data of the suspension system in various driving scenarios under a sliding joint displacement simulation mode. The simulation data includes multiple displacement distances of the sliding joint and the sway angle corresponding to each displacement distance. The data processing module is configured to verify whether the multiple displacement distances and corresponding swing angles conform to the verification criteria corresponding to the displacement simulation form of the sliding joint, including: obtaining the theoretical displacement swing angle curve of the sliding joint; in response to determining that the sliding joint is in the first displacement simulation form or the second displacement simulation form, establishing the residual displacement swing angle curve of the sliding joint that has undergone displacement based on the simulation data; and comparing the actual displacement swing angle curve of the sliding joint with the theoretical displacement swing angle curve to obtain the verification result. The displacement simulation forms of the sliding joint include a first displacement simulation form and a second displacement simulation form. The first displacement simulation form is that the sliding joint near the hub end of the shaft does not displace, while the sliding joint near the power end of the shaft displaces. The second displacement simulation form is that the sliding joint near the hub end of the shaft displaces, while the sliding joint near the power end of the shaft does not displace. The margin displacement swing angle curve is the curve where the displacement distance of the actual displacement swing angle curve of the sliding joint is shortened by half, and the corresponding swing angle remains unchanged.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the suspension system bounce verification method as described in any one of claims 1 to 5.

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