Vehicle tire impact resistance evaluation method, device, equipment and storage medium

Abstract

The present invention relates to the field of automotive technology and discloses a method, device, equipment, and storage medium for evaluating the impact resistance of vehicle tires. The present invention discloses: performing a vehicle impact test on a target vehicle equipped with a tire to be tested to obtain a vehicle impact test result; performing a bench impact test on the tire to be tested to obtain a bench impact test result; and generating an impact resistance evaluation result of the tire to be tested based on the vehicle impact test result and the bench impact test result. Because the present invention performs a vehicle impact test and a bench impact test on the tire to be tested, respectively, and generates an impact resistance evaluation result of the tire to be tested based on the vehicle impact test result and the bench impact test result, the vehicle impact test result and the bench impact test result are effectively correlated, achieving diversification of vehicle tire impact testing, thereby improving the accuracy of the vehicle tire impact resistance evaluation result, and accurately determining the impact resistance performance of the vehicle tire.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a method, device, equipment and storage medium for evaluating the impact resistance of vehicle tires. Background Art

[0002] With the advancement of society and science and technology, the Chinese automobile market is growing rapidly. Consequently, tire specifications are becoming increasingly diverse, while rim sizes are also increasing, leading to thinner tire sidewalls. Consequently, tire bulges and air leaks are becoming more frequent. Consequently, research on the impact resistance of tires is receiving increasing attention and attention in the automotive market. However, current tire testing methods are limited and cannot effectively perform impact resistance testing on tires, resulting in inaccurate evaluation of tire impact resistance.

[0003] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0004] The main purpose of the present invention is to provide a method, device, equipment and storage medium for evaluating the impact resistance performance of vehicle tires, aiming to solve the technical problem in the existing technology that the vehicle tire testing method is single and cannot effectively perform impact resistance testing on vehicle tires, resulting in inaccurate impact resistance performance evaluation of vehicle tires.

[0005] To achieve the above object, the present invention provides a method for evaluating the impact resistance of vehicle tires, the method comprising the following steps:

[0006] Performing a vehicle impact test on a target vehicle equipped with the tire to be tested to obtain a vehicle impact test result;

[0007] Performing a bench impact test on the tire to be tested to obtain a bench impact test result;

[0008] An impact resistance performance evaluation result of the tire to be tested is generated according to the vehicle impact test result and the bench impact test result.

[0009] Optionally, performing a vehicle impact test on a target vehicle equipped with the tire to be tested to obtain a vehicle impact test result includes:

[0010] Determine the tire pressure information of the entire vehicle corresponding to the vehicle impact test based on the tire information of the tire to be tested;

[0011] Correcting the tire pressure of the tire to be tested according to the tire pressure information of the vehicle;

[0012] A vehicle impact test is performed on a target vehicle equipped with tires after tire pressure correction to obtain a vehicle impact test result.

[0013] Optionally, performing a vehicle impact test on a target vehicle equipped with tires having corrected tire pressure to obtain a vehicle impact test result includes:

[0014] Obtain vehicle information corresponding to a target vehicle equipped with tires after tire pressure correction;

[0015] determining vehicle speed information and obstacle information based on the vehicle information and the tire information;

[0016] Determining a test control strategy corresponding to the target vehicle based on the vehicle speed information and obstacle information;

[0017] Perform a whole vehicle impact test on the target vehicle according to the test control strategy to obtain a whole vehicle impact test result.

[0018] Optionally, performing a bench impact test on the tire to be tested to obtain a bench impact test result includes:

[0019] Determining the bench tire pressure information corresponding to the bench impact test according to the vehicle impact test result and the tire information of the tire to be tested;

[0020] Performing bench tire pressure correction on the tire to be tested according to the bench tire pressure information;

[0021] Perform a bench impact test on the tire after bench tire pressure correction to obtain a bench impact test result.

[0022] Optionally, performing a bench impact test on the tire after the bench tire pressure correction to obtain the bench impact test result includes:

[0023] Determining the test impact energy information of the tire after the test bench tire pressure is corrected according to the tire information;

[0024] calibrating the impact state of the test bench according to the test impact energy information;

[0025] The bench impact test is performed on the tire after the tire pressure is corrected on the bench according to the state calibration rear stand to obtain a bench impact test result.

[0026] Optionally, the calibrating the impact state of the test bench according to the test impact energy information includes:

[0027] Obtaining the test points of the tire after the tire pressure is corrected on the test bench, and the measurement point position information corresponding to the test points;

[0028] Determining hammer position information of the test bench according to the test impact energy information and the measuring point position information;

[0029] The impact state of the test bench is calibrated according to the hammer position information.

[0030] Optionally, calibrating the impact state of the test bench according to the hammer position information includes:

[0031] Obtaining hammer mass information of the test bench;

[0032] The impact state of the test bench is calibrated according to the hammer mass information and the hammer position information.

[0033] In addition, to achieve the above-mentioned purpose, the present invention further provides a vehicle tire impact resistance performance evaluation device, the vehicle tire impact resistance performance evaluation device comprising:

[0034] The whole vehicle test module is used to perform a whole vehicle impact test on the target vehicle equipped with the tire to be tested and obtain the whole vehicle impact test results;

[0035] A bench testing module, configured to perform a bench impact test on the tire to be tested and obtain a bench impact test result;

[0036] A performance evaluation module is used to generate an impact resistance performance evaluation result of the tire to be tested based on the vehicle impact test result and the bench impact test result.

[0037] In addition, to achieve the above-mentioned purpose, the present invention also proposes a vehicle tire impact resistance performance evaluation device, which includes: a memory, a processor, and a vehicle tire impact resistance performance evaluation program stored on the memory and runnable on the processor, and the vehicle tire impact resistance performance evaluation program is configured to implement the steps of the vehicle tire impact resistance performance evaluation method described above.

[0038] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which a vehicle tire impact resistance performance evaluation program is stored. When the vehicle tire impact resistance performance evaluation program is executed by a processor, the steps of the vehicle tire impact resistance performance evaluation method described above are implemented.

[0039] The present invention performs a whole vehicle impact test on a target vehicle equipped with a tire to be tested to obtain a whole vehicle impact test result, performs a bench impact test on the tire to be tested to obtain a bench impact test result, and generates an impact resistance performance evaluation result of the tire to be tested based on the whole vehicle impact test result and the bench impact test result; because the present invention performs a whole vehicle impact test and a bench impact test on the tire to be tested, respectively, and then generates an impact resistance performance evaluation result of the tire to be tested based on the whole vehicle impact test result obtained from the whole vehicle impact test and the bench impact test result obtained from the bench impact test, the whole vehicle impact test result and the bench impact test result are effectively associated, thereby realizing the diversification of vehicle tire impact testing, thereby improving the accuracy of the vehicle tire impact resistance performance evaluation result, and thus accurately determining the impact resistance performance of the vehicle tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0041] Figure 1 Schematic diagram of the structure of a vehicle tire impact resistance performance evaluation device in the hardware operating environment involved in an embodiment of the present invention;

[0042] Figure 2 This is a flow chart of a first embodiment of a method for evaluating the impact resistance of a vehicle tire according to the present invention;

[0043] Figure 3 A schematic structural diagram of a test bench according to a first embodiment of a method for evaluating the impact resistance of vehicle tires according to the present invention;

[0044] Figure 4 This is a flow chart of a second embodiment of a method for evaluating the impact resistance of a vehicle tire according to the present invention;

[0045] Figure 5 This is a flow chart of a third embodiment of a method for evaluating the impact resistance of a vehicle tire according to the present invention;

[0046] Figure 6 This is a structural block diagram of the first embodiment of the vehicle tire impact resistance performance evaluation device of the present invention.

[0047] Description of Figure Numbers:

[0048] Label name Label name 1 Clamping device 2 Rocker frame 3 Fixed fulcrum 4 Hammer 5 Self-aligning ball bearings 6 swing arm 7 base 8 Eye Lift 9 Tire to be tested

[0049] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0050] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle tire impact resistance performance evaluation device in the hardware operating environment involved in an embodiment of the present invention.

[0052] like Figure 1 As shown, the vehicle tire impact resistance performance evaluation device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and optionally the user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk storage. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0053] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the vehicle tire impact resistance performance evaluation device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0054] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a vehicle tire impact resistance performance evaluation program.

[0055] exist Figure 1In the vehicle tire impact resistance performance evaluation device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the vehicle tire impact resistance performance evaluation device of the present invention can be set in the vehicle tire impact resistance performance evaluation device, and the vehicle tire impact resistance performance evaluation device calls the vehicle tire impact resistance performance evaluation program stored in the memory 1005 through the processor 1001, and executes the vehicle tire impact resistance performance evaluation method provided by the embodiment of the present invention.

[0056] The embodiment of the present invention provides a method for evaluating the impact resistance of vehicle tires, referring to Figure 2 , Figure 2 This is a flow chart of a first embodiment of a method for evaluating the impact resistance of vehicle tires according to the present invention.

[0057] In this embodiment, the vehicle tire impact resistance evaluation method includes the following steps:

[0058] Step S10: performing a vehicle impact test on the target vehicle equipped with the tire to be tested to obtain a vehicle impact test result.

[0059] It should be noted that this embodiment is applied when it is necessary to evaluate the impact resistance of vehicle tires. A whole-vehicle impact test is performed on the target vehicle equipped with the tires to be tested to obtain the whole-vehicle impact test results. A bench impact test is performed on the tires to be tested to obtain the bench impact test results. The impact resistance performance evaluation results of the tires to be tested are generated based on the whole-vehicle impact test results and the bench impact test results.

[0060] However, the current testing method for vehicle tires is single and cannot effectively perform impact resistance tests on vehicle tires, resulting in inaccurate impact resistance performance evaluation of vehicle tires. Compared with the existing technology, since this embodiment performs a whole vehicle impact test and a bench impact test on the tire to be tested, respectively, and then generates the impact resistance performance evaluation result of the tire to be tested based on the whole vehicle impact test results obtained from the whole vehicle impact test and the bench impact test results obtained from the bench impact test, the whole vehicle impact test results and the bench impact test results are effectively associated, thereby realizing the diversification of vehicle tire impact testing, thereby improving the accuracy of the vehicle tire impact resistance performance evaluation results, and thus accurately determining the impact resistance performance of the vehicle tire.

[0061] It should be understood that the execution subject of the method of this embodiment can be a vehicle tire impact resistance performance evaluation device with data processing, network communication and program running functions, such as a computer, or other devices or equipment that can achieve the same or similar functions. The above-mentioned vehicle tire impact resistance performance evaluation device (hereinafter referred to as the performance evaluation device) is used as an example for illustration.

[0062] It should be noted that the tire to be tested can be an automobile tire requiring impact resistance testing and evaluation, and the target vehicle can be a vehicle equipped with the tire to be tested. The vehicle impact test can be performed by controlling the target vehicle equipped with the tire to be tested to simulate a vehicle-wide impact. For example, the vehicle impact test can be performed by controlling the target vehicle to impact an obstacle (e.g., a roadside shoulder) at a preset speed, causing the tire to be tested mounted on the target vehicle to collide and impact the obstacle. The vehicle impact test result is then determined based on the impact and collision results of the tire to be tested.

[0063] The vehicle impact test results may include a failure or a pass. If a tire under test experiences a bulge or leak within a preset number of impacts during the vehicle impact test, the vehicle is deemed to have failed the test. If a bulge or leak occurs beyond the preset number of impacts, the vehicle is deemed to have passed the test.

[0064] For example, the performance rating equipment determines that the preset speeds for the whole vehicle impact test are 30km / h, 35km / h, 40km / h and 45km / h, and determines the preset number of impacts as 4 based on the preset speeds. The performance rating equipment controls the target vehicle to impact the obstacle 4 times at preset speeds of 30km / h, 35km / h, 40km / h and 45km / h respectively. If the tire to be tested on the target vehicle fails (for example, bulges or leaks) within the 4 impact times, it is determined that the tire to be tested has failed the whole vehicle impact test and needs to be improved or optimized; if the tire to be tested on the target vehicle does not fail within the 4 impact times, it is determined that the tire to be tested has failed the whole vehicle impact test and subsequent impact tests can be performed.

[0065] In the specific implementation, the performance evaluation equipment first determines the vehicle tire pressure information of the tire to be tested in the whole vehicle impact test based on the tire information of the tire to be tested, corrects the tire pressure of the tire to be tested based on the whole vehicle tire pressure information, and then hits the target vehicle equipped with the tire after the whole vehicle tire pressure correction into the obstacle at a preset speed, so that an impact occurs between the tire to be tested installed on the target vehicle and the obstacle, and determines the whole vehicle impact test result based on the impact result of the tire to be tested after the impact.

[0066] For example, the performance evaluation equipment first determines that the vehicle tire pressure information of the tire to be tested in the whole vehicle impact test is 240 kPa based on the tire information of the tire to be tested, obtains the current tire pressure of the tire to be tested as 220 kPa, and performs vehicle tire pressure correction on the tire to be tested based on the vehicle tire pressure information, that is, applies tire pressure to the tire to be tested so that the current tire pressure of the tire to be tested reaches 240 kPa, and determines that the preset speeds of the whole vehicle impact test are 30 km / h, 35 km / h, 40 km / h and 45 km / h based on the vehicle information of the target vehicle equipped with the tire after the whole vehicle tire pressure correction, and the obstacle to be impacted is the road shoulder, and then controls the target vehicle to hit the road shoulder 4 times at preset speeds of 30 km / h, 35 km / h, 40 km / h and 45 km / h respectively, so that an impact occurs between the tire to be tested installed on the target vehicle and the obstacle, and determines the whole vehicle impact test result based on the impact result of the tire to be tested after the impact.

[0067] Step S20: performing a bench impact test on the tire to be tested to obtain a bench impact test result.

[0068] It should be noted that the bench impact test can be performed by fixing the tire to be tested on a test bench, and the performance evaluation equipment controls the hammer of the test bench to impact the test points on the tire to be tested, and determines the bench impact test result of the tire to be tested based on the impact result.

[0069] Reference Figure 3 , Figure 3 This is a structural diagram of a test bench, which may include a clamping device 1, a frame 2, a fixed fulcrum 3, a hammer 4, a self-aligning ball bearing 5, a rocker arm 6, a base 7 and a lifting eye 8; the tire 9 to be tested can be detachably mounted on the clamping device 1, the hammer 4 is fixed on the rocker arm 6, the rocker arm 6 is rotationally connected to the fixed fulcrum 3, the fixed fulcrum 3 is connected to the self-aligning ball bearing 5, the self-aligning ball bearing 5 is fixed on the frame 2, the fixed fulcrum 3 is fixed to the top of the frame 2, the rocker arm 6 and the frame 2 are fixed on the base 7, and the clamping device 1 is fixed on the base 7, wherein the performance evaluation equipment can adjust the position of the hammer 4 relative to the rocker arm 6 through the lifting eye 8, thereby adjusting the impact position of the hammer 4 hitting the tire 9 to be tested, and the performance evaluation equipment can adjust the impact angle of the rocker arm 6 through the self-aligning ball bearing 5, thereby adjusting the height at which the hammer 4 hits the tire 9 to be tested.

[0070] It should be understood that in order to perform bench impact tests of different specifications on other tires to be tested of the same specifications, thereby ensuring the stability of the impact resistance of the tires to be tested of the same specifications, the performance evaluation equipment of this embodiment can adjust the impact height of the hammer 4 by adjusting the length of the rocker arm 6 and the rotation angle of the rocker arm 6, and by changing the impact height of the hammer 4 to hit different test points on the tire to be tested 9, thereby performing bench impact tests on multiple points on the tire to be tested.

[0071] The performance evaluation equipment of this embodiment can change the impact energy of the tire to be tested by changing the impact height and mass of the hammer, thereby impacting the tire to be tested with different impact energies to accurately obtain the impact resistance of the tire to be tested, referring to the following formula 1. Formula 1 is a formula for calculating the impact energy of the hammer impacting the tire to be tested, wherein E is the impact energy, m is the mass of the hammer, g is the acceleration of gravity, and h is the height of the hammer.

[0072] E=m*g*h Formula 1

[0073] Step S30: generating an impact resistance performance evaluation result of the tire to be tested according to the vehicle impact test result and the bench impact test result.

[0074] It should be noted that the impact resistance performance evaluation result may be an evaluation result of the impact resistance performance of the tire to be tested by a performance rating device. The performance rating device may determine the impact resistance performance of the tire to be tested in a whole vehicle impact test based on the whole vehicle impact test result, determine the impact resistance performance of the tire to be tested in a bench impact test based on the bench impact test result, and then evaluate the impact resistance performance of the tire to be tested based on the impact resistance performance of the tire to be tested in the whole vehicle impact test and the impact resistance performance of the tire to be tested in the bench impact test to obtain an impact resistance performance evaluation result of the tire to be tested.

[0075] This embodiment performs a whole vehicle impact test on a target vehicle equipped with a tire to be tested to obtain a whole vehicle impact test result, performs a bench impact test on the tire to be tested to obtain a bench impact test result, and generates an impact resistance performance evaluation result of the tire to be tested based on the whole vehicle impact test result and the bench impact test result; since the present invention performs a whole vehicle impact test and a bench impact test on the tire to be tested, respectively, and then generates an impact resistance performance evaluation result of the tire to be tested based on the whole vehicle impact test result obtained from the whole vehicle impact test and the bench impact test result obtained from the bench impact test, the whole vehicle impact test result and the bench impact test result are effectively associated, thereby realizing the diversification of vehicle tire impact testing, thereby improving the accuracy of the vehicle tire impact resistance performance evaluation result, and thus accurately determining the impact resistance performance of the vehicle tire.

[0076] refer to Figure 4 , Figure 4 This is a flow chart of a second embodiment of a method for evaluating the impact resistance of vehicle tires according to the present invention.

[0077] Based on the first embodiment above, in this embodiment, step S10 includes:

[0078] Step S101: determining the tire pressure information of the entire vehicle corresponding to the vehicle impact test according to the tire information of the tire to be tested;

[0079] Step S102: Correcting the tire pressure of the tire to be tested according to the tire pressure information of the entire vehicle;

[0080] Step S103: performing a vehicle impact test on the target vehicle equipped with the tires after tire pressure correction to obtain a vehicle impact test result.

[0081] It should be noted that the tire information may include the specifications of the tire under test, such as tire size, load, and initial tire pressure. The vehicle tire pressure information may include the test tire pressure of the tire under test during the vehicle impact test. For example, if the initial tire pressure of the tire under test is 200 kPa and the vehicle tire pressure is 240 kPa, the performance evaluation equipment will need to perform a vehicle tire pressure correction on the tire under test to increase the current tire pressure to 240 kPa, thereby ensuring the accuracy of the vehicle impact test results.

[0082] It should be understood that in order to ensure the accuracy of the whole vehicle impact test and avoid errors in the whole vehicle impact test results, the performance evaluation equipment of this embodiment obtains the tire information of the tire to be tested, determines the tire size information, initial tire pressure information and load information of the tire to be tested based on the tire information, determines the tire size information, initial tire pressure information and load information based on the initial tire pressure and load information, determines the whole vehicle tire pressure information of the tire to be tested in the whole vehicle impact test, and judges whether the initial tire pressure information of the tire to be tested is consistent with the whole vehicle tire pressure information. If they are consistent, no whole vehicle tire pressure correction is required; if they are inconsistent, the whole vehicle tire pressure is corrected for the tire to be tested according to the whole vehicle tire pressure information, so that the current tire pressure information of the tire to be tested is consistent with the whole vehicle tire pressure information, and a whole vehicle impact test is performed on the target vehicle equipped with the tire after the whole vehicle tire pressure correction to obtain the whole vehicle impact test result.

[0083] For example, the performance evaluation equipment obtains tire information of the tire to be tested, determines the tire size information, initial tire pressure information and load information of the tire to be tested based on the tire information, determines that the tire pressure of the tire to be tested in the actual application scenario should be 250 kPa based on the tire size information and load information, and the initial tire pressure of the tire to be tested is 210 kPa. According to the tire pressure in the actual application scenario, it is determined that the whole vehicle tire pressure corresponding to the whole vehicle impact test is 250 kPa. Because the initial tire pressure is lower than the whole vehicle tire pressure, it is determined that tire pressure correction is required. The whole vehicle tire pressure is corrected for the tire to be tested based on the whole vehicle tire pressure information so that the current tire pressure of the tire to be tested is corrected to 250 kPa. The target vehicle equipped with the tire after the whole vehicle tire pressure correction is subjected to a whole vehicle impact test to obtain the whole vehicle impact test result.

[0084] Furthermore, in order to improve the accuracy of the vehicle impact test results of the tire to be tested, the above step S103 includes:

[0085] Step S1031: obtaining vehicle information corresponding to a target vehicle equipped with tires after tire pressure correction;

[0086] Step S1032: determining vehicle speed information and obstacle information based on the vehicle information and the tire information;

[0087] Step S1033: determining a test control strategy corresponding to the target vehicle according to the vehicle speed information and obstacle information;

[0088] Step S1034: performing a vehicle impact test on the target vehicle according to the test control strategy to obtain a vehicle impact test result.

[0089] It should be noted that the vehicle information may include information related to the target vehicle, such as its size, type, and performance. The aforementioned vehicle speed information may include information related to the speed of the target vehicle when it impacts an obstacle during a full-vehicle impact test. The aforementioned obstacle information may include information about the type or size of the obstacle impacted by the target vehicle during the full-vehicle impact test. For example, the obstacle information may include information about obstacles such as a road shoulder, roadblock, or stone pier. The aforementioned test control strategy may include an impact control strategy for the target vehicle when it impacts an obstacle during a full-vehicle impact test. For example, the test control strategy may include controlling the target vehicle to impact obstacle A at a preset speed of 30 km / h.

[0090] In a specific implementation, the performance evaluation device obtains vehicle information corresponding to a target vehicle equipped with tires after tire pressure correction, thereby determining the model and body size of the target vehicle, determining the installation position of the tire to be tested relative to the target vehicle based on the model and body size, determining the impact energy of the tire to be tested based on the tire information, and then determining the speed information of the target vehicle impacting the obstacle (i.e., the impact speed) based on the impact energy and vehicle information, determining the type of obstacle impacted by the target vehicle based on the installation position of the above-mentioned tire to be tested relative to the target vehicle, determining the test control strategy corresponding to the target vehicle based on the speed information and the obstacle type, performing a whole-vehicle impact test on the target vehicle based on the test control strategy, controlling the target vehicle to impact the obstacle at the above-mentioned impact speed, and obtaining the whole-vehicle impact test result.

[0091] For example, the performance evaluation equipment determines the speed information of the target vehicle impacting the obstacle based on the impact energy and vehicle information, that is, the impact speed is 40 km / h, and determines the type of obstacle impacted by the target vehicle as the road shoulder based on the installation position of the above-mentioned tire to be tested relative to the target vehicle. The test control strategy corresponding to the target vehicle is determined based on the speed information and the obstacle type, and the whole vehicle impact test is performed on the target vehicle according to the test control strategy. The target vehicle is controlled to impact the road shoulder at a speed of 40 km / h to obtain the whole vehicle impact test result.

[0092] This embodiment determines the whole vehicle tire pressure information corresponding to the whole vehicle impact test based on the tire information of the tire to be tested, performs whole vehicle tire pressure correction on the tire to be tested based on the whole vehicle tire pressure information, performs a whole vehicle impact test on the target vehicle equipped with the tire after whole vehicle tire pressure correction, and obtains the whole vehicle impact test result; because the present invention performs whole vehicle tire pressure correction on the tire to be tested based on the whole vehicle tire pressure information before the whole vehicle impact test, thereby ensuring the tire pressure stability of the tire to be tested during the whole vehicle impact test, and then performs a whole vehicle impact test on the target vehicle equipped with the tire after whole vehicle tire pressure correction to obtain the whole vehicle impact test result, thereby ensuring the accuracy of the test result of the tire to be tested in the whole vehicle impact test, and effectively avoiding the problem of inaccurate test result caused by unstable tire pressure in the whole vehicle impact test.

[0093] refer to Figure 5 , Figure 5 This is a flow chart of a third embodiment of a method for evaluating the impact resistance of vehicle tires according to the present invention.

[0094] Based on the above first embodiment, in this embodiment, step S20 includes:

[0095] Step S201: determining the bench tire pressure information corresponding to the bench impact test according to the vehicle impact test result and the tire information of the tire to be tested;

[0096] Step S202: performing bench tire pressure correction on the tire to be tested according to the bench tire pressure information;

[0097] Step S203: performing a bench impact test on the tire after the bench tire pressure correction to obtain a bench impact test result.

[0098] It should be noted that the vehicle impact test result may be the test result of the impact resistance of the tire under test during the vehicle impact test. For example, if the tire under test exhibits an abnormality after eight impacts during the vehicle impact test, the vehicle impact test result of the tire under test is determined to be excellent; if the tire under test exhibits an abnormality after six impacts during the vehicle impact test, the vehicle impact test result of the tire under test is determined to be good; and if the tire under test exhibits an abnormality after five impacts during the vehicle impact test, the vehicle impact test result of the tire under test is determined to be qualified.

[0099] The tire information may include specifications of the tire under test, such as tire size, load, and initial tire pressure. The bench tire pressure information may include the test tire pressure of the tire under test during the bench impact test. For example, if the initial tire pressure of the tire under test is 220 kPa and the bench tire pressure is 250 kPa, the performance evaluation device will need to perform a bench tire pressure correction on the tire under test to increase the current tire pressure to 250 kPa, thereby ensuring the accuracy of the bench impact test results.

[0100] It should be understood that in order to ensure the accuracy of the bench impact test and avoid errors in the bench impact test results, the performance evaluation equipment of this embodiment obtains tire information of the tire to be tested, determines the tire size information, initial tire pressure information and load information of the tire to be tested based on the tire information, determines the bench tire pressure information of the tire to be tested in the bench impact test based on the initial tire pressure and load information, and judges whether the initial tire pressure information of the tire to be tested is consistent with the bench tire pressure information. If they are consistent, no bench tire pressure correction is required; if they are inconsistent, bench tire pressure correction is performed on the tire to be tested according to the bench tire pressure information so that the current tire pressure information of the tire to be tested is consistent with the bench tire pressure information. A bench impact test is performed on the target vehicle equipped with the tire after bench tire pressure correction to obtain a bench impact test result.

[0101] For example, the performance evaluation equipment obtains tire information of the tire to be tested, determines the tire size information, initial tire pressure information and load information of the tire to be tested based on the tire information, determines that the tire pressure of the tire to be tested in the actual application scenario should be 230 kPa based on the tire size information and load information, and the initial tire pressure of the tire to be tested is 180 kPa. Based on the tire pressure in the actual application scenario, it is determined that the bench tire pressure corresponding to the bench impact test is 230 kPa. Because the initial tire pressure is lower than the bench tire pressure, it is determined that tire pressure correction is required. Bench tire pressure correction is performed on the tire to be tested based on the bench tire pressure information so that the current tire pressure of the tire to be tested is corrected to 230 kPa. A bench impact test is performed on the target vehicle equipped with the tire after bench tire pressure correction to obtain a bench impact test result.

[0102] Furthermore, in order to accurately determine the critical value of the impact resistance performance of the tire to be tested in the bench impact test, thereby obtaining the actual impact performance of the tire to be tested, the above step S203 may include:

[0103] Step S2031: determining the test impact energy information of the tire after the test bench tire pressure correction according to the tire information;

[0104] Step S2032: calibrating the impact state of the test bench according to the test impact energy information;

[0105] Step S2033: performing a bench impact test on the tire after the bench tire pressure correction according to the state calibration back frame to obtain a bench impact test result.

[0106] It should be noted that the test impact energy information may be information related to the impact energy of the tire under test during a test bench impact test. The test impact energy in the test bench impact test may be one or more impact energies. The impact state may be the state of the test bench. For example, the impact state may include state information such as the hammer mass, hammer position, and pendulum length of the test bench.

[0107] Furthermore, in order to ensure the stability of the impact resistance performance at various locations on the tire to be tested, it is necessary to perform a bench impact test on multiple locations on the tire to be tested, that is, perform a bench impact test on multiple test points on the tire to be tested. The above step S2032 may include:

[0108] Obtaining the test points of the tire after the tire pressure is corrected on the test bench, and the measurement point position information corresponding to the test points;

[0109] Determining hammer position information of the test bench according to the test impact energy information and the measuring point position information;

[0110] The impact state of the test bench is calibrated according to the hammer position information.

[0111] It should be noted that the test points may be points on the tire to be tested that require a bench impact test, and the performance evaluation equipment can perform impact tests on different test points on the tire to be tested by adjusting the position of the hammer on the test bench. The test point position information may be position information of the test point on the tire to be tested. The hammer position information may be position information of the hammer on the test bench. The impact state may be state information of the hammer and pendulum on the test bench. For example, the impact state may include the mass state of the hammer, the position and loading of the hammer, the angle state of the pendulum, and the length state of the pendulum.

[0112] It should be understood that the performance evaluation equipment obtains the test points of the tires after the tire pressure of the test bench is corrected, as well as the measuring point position information corresponding to the test points, determines the hammer position information of the test bench according to the test impact energy information and the measuring point position information, adjusts the impact angle and the length of the pendulum according to the hammer position information, and adjusts the impact height of the hammer according to the impact angle and the length of the pendulum, determines the hammer position information of the test bench according to the impact height and the measuring point position information, and calibrates the impact state of the test bench according to the hammer position information.

[0113] Furthermore, in order to accurately calibrate the impact state of the test bench, the above-mentioned impact state calibration of the test bench according to the hammer position information includes:

[0114] Obtaining hammer mass information of the test bench;

[0115] The impact state of the test bench is calibrated according to the hammer mass information and the hammer position information.

[0116] It should be noted that the hammer mass information may be the mass information of the hammer on the test bench used for bench impact.

[0117] This embodiment determines the bench tire pressure information corresponding to the bench impact test based on the whole vehicle impact test result and the tire information of the tire to be tested, performs bench tire pressure correction on the tire to be tested based on the bench tire pressure information, and performs a bench impact test on the tire after the bench tire pressure correction to obtain a bench impact test result. Since the present invention performs bench tire pressure correction on the tire to be tested based on the bench tire pressure information before the bench impact test, the tire pressure stability of the tire to be tested during the bench impact test is ensured, and then a bench impact test is performed on the target vehicle equipped with the tire after the bench tire pressure correction to obtain a bench impact test result, thereby ensuring the accuracy of the test result of the tire to be tested in the bench impact test, and effectively avoiding the problem of inaccurate test results caused by unstable tire pressure in the bench impact test.

[0118] In addition, an embodiment of the present invention also proposes a storage medium, which stores a vehicle tire impact resistance performance evaluation program. When the vehicle tire impact resistance performance evaluation program is executed by a processor, the steps of the vehicle tire impact resistance performance evaluation method described above are implemented.

[0119] Since the storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described one by one here.

[0120] Reference Figure 6 , Figure 6 This is a structural block diagram of the first embodiment of the vehicle tire impact resistance performance evaluation device of the present invention.

[0121] like Figure 6 As shown, the vehicle tire impact resistance performance evaluation device proposed in the embodiment of the present invention includes:

[0122] The vehicle testing module 10 is used to perform a vehicle impact test on a target vehicle equipped with a tire to be tested and obtain a vehicle impact test result;

[0123] A bench testing module 20 is used to perform a bench impact test on the tire to be tested and obtain a bench impact test result;

[0124] The performance evaluation module 30 is configured to generate an impact resistance performance evaluation result of the tire to be tested based on the vehicle impact test result and the bench impact test result.

[0125] Furthermore, the whole vehicle test module 10 is also used to determine the whole vehicle tire pressure information corresponding to the whole vehicle impact test based on the tire information of the tire to be tested, perform whole vehicle tire pressure correction on the tire to be tested according to the whole vehicle tire pressure information, perform a whole vehicle impact test on the target vehicle equipped with the tire after whole vehicle tire pressure correction, and obtain the whole vehicle impact test result.

[0126] Furthermore, the whole vehicle test module 10 is also used to obtain vehicle information corresponding to the target vehicle equipped with tires after whole vehicle tire pressure correction, determine vehicle speed information and obstacle information based on the vehicle information and the tire information, determine the test control strategy corresponding to the target vehicle based on the vehicle speed information and obstacle information, perform a whole vehicle impact test on the target vehicle according to the test control strategy, and obtain the whole vehicle impact test result.

[0127] Furthermore, the bench test module 20 is also used to determine the bench tire pressure information corresponding to the bench impact test based on the whole vehicle impact test result and the tire information of the tire to be tested, perform bench tire pressure correction on the tire to be tested according to the bench tire pressure information, and perform a bench impact test on the tire after the bench tire pressure correction to obtain the bench impact test result.

[0128] Furthermore, the bench test module 20 is also used to determine the test impact energy information of the tire after the bench tire pressure is corrected based on the tire information, calibrate the impact state of the test bench based on the test impact energy information, and perform a bench impact test on the tire after the bench tire pressure is corrected based on the state calibration to obtain a bench impact test result.

[0129] Furthermore, the bench test module 20 is also used to obtain the test points of the tire after the bench tire pressure correction, and the measuring point position information corresponding to the test points, determine the hammer position information of the test bench according to the test impact energy information and the measuring point position information, and calibrate the impact state of the test bench according to the hammer position information.

[0130] Furthermore, the test bench module 20 is further configured to obtain hammer mass information of the test bench, and perform impact state calibration on the test bench according to the hammer mass information and the hammer position information.

[0131] This embodiment performs a whole vehicle impact test on a target vehicle equipped with a tire to be tested to obtain a whole vehicle impact test result, performs a bench impact test on the tire to be tested to obtain a bench impact test result, and generates an impact resistance performance evaluation result of the tire to be tested based on the whole vehicle impact test result and the bench impact test result; since the present invention performs a whole vehicle impact test and a bench impact test on the tire to be tested, respectively, and then generates an impact resistance performance evaluation result of the tire to be tested based on the whole vehicle impact test result obtained from the whole vehicle impact test and the bench impact test result obtained from the bench impact test, the whole vehicle impact test result and the bench impact test result are effectively associated, thereby realizing the diversification of vehicle tire impact testing, thereby improving the accuracy of the vehicle tire impact resistance performance evaluation result, and thus accurately determining the impact resistance performance of the vehicle tire.

[0132] It should be understood that the above is only an example and does not constitute any limitation to the technical solution of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any limitation on this.

[0133] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of it according to actual needs to achieve the purpose of the embodiment scheme, and no limitation is made here.

[0134] In addition, for technical details not fully described in this embodiment, reference can be made to the vehicle tire impact resistance performance evaluation method provided in any embodiment of the present invention, and will not be repeated here.

[0135] In addition, it should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0136] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0137] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, or of course by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0138] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for evaluating the impact resistance of vehicle tires, characterized in that: The vehicle tire impact resistance evaluation method comprises: Performing a vehicle impact test on a target vehicle equipped with the tire to be tested to obtain a vehicle impact test result; Determining the bench tire pressure information corresponding to the bench impact test according to the whole vehicle impact test result and the tire information of the tire to be tested, performing bench tire pressure correction on the tire to be tested according to the bench tire pressure information, and performing a bench impact test on the tire to be tested after the bench tire pressure correction to obtain a bench impact test result, wherein performing a bench impact test on the tire to be tested after the bench tire pressure correction to obtain the bench impact test result includes: determining test impact energy information of the tire after the bench tire pressure correction according to the tire information; calibrating the impact state of the test bench according to the test impact energy information; and performing a bench impact test on the tire after the bench tire pressure correction according to the state calibration, to obtain a bench impact test result; An impact resistance performance evaluation result of the tire to be tested is generated according to the vehicle impact test result and the bench impact test result.

2. The method for evaluating the impact resistance of a vehicle tire according to claim 1, wherein: The step of performing a vehicle impact test on a target vehicle equipped with a tire to be tested to obtain a vehicle impact test result includes: Determine the tire pressure information of the entire vehicle corresponding to the vehicle impact test based on the tire information of the tire to be tested; Correcting the tire pressure of the tire to be tested according to the tire pressure information of the vehicle; A vehicle impact test is performed on a target vehicle equipped with tires after tire pressure correction to obtain a vehicle impact test result.

3. The method for evaluating the impact resistance of a vehicle tire according to claim 2, wherein: The step of performing a vehicle impact test on a target vehicle equipped with tires after tire pressure correction to obtain a vehicle impact test result includes: Obtain vehicle information corresponding to a target vehicle equipped with tires after tire pressure correction; determining vehicle speed information and obstacle information based on the vehicle information and the tire information; Determining a test control strategy corresponding to the target vehicle based on the vehicle speed information and obstacle information; Perform a whole vehicle impact test on the target vehicle according to the test control strategy to obtain a whole vehicle impact test result.

4. The method for evaluating the impact resistance of a vehicle tire according to claim 1, wherein: The step of calibrating the impact state of the test bench according to the test impact energy information includes: Obtaining the test points of the tire after the tire pressure is corrected on the test bench, and the measurement point position information corresponding to the test points; Determining hammer position information of the test bench according to the test impact energy information and the measuring point position information; The impact state of the test bench is calibrated according to the hammer position information.

5. The method for evaluating the impact resistance of a vehicle tire according to claim 4, wherein: The calibrating the impact state of the test bench according to the hammer position information includes: Obtaining hammer mass information of the test bench; The impact state of the test bench is calibrated according to the hammer mass information and the hammer position information.

6. A vehicle tire impact resistance evaluation device, characterized in that: The vehicle tire impact resistance performance evaluation device comprises: The whole vehicle test module is used to perform a whole vehicle impact test on the target vehicle equipped with the tire to be tested and obtain the whole vehicle impact test results; A bench test module, configured to determine, based on the vehicle impact test result and tire information of the tire to be tested, bench tire pressure information corresponding to the bench impact test, perform bench tire pressure correction on the tire to be tested based on the bench tire pressure information, perform a bench impact test on the tire to be tested after the bench tire pressure correction, and obtain a bench impact test result, wherein performing a bench impact test on the tire to be tested after the bench tire pressure correction to obtain a bench impact test result comprises: determining, based on the tire information, test impact energy information of the tire after the bench tire pressure correction; calibrating an impact state of a test bench based on the test impact energy information; and performing a bench impact test on the tire after the bench tire pressure correction based on the state calibration, and obtaining a bench impact test result; A performance evaluation module is used to generate an impact resistance performance evaluation result of the tire to be tested based on the vehicle impact test result and the bench impact test result.

7. A vehicle tire impact resistance evaluation device, characterized in that: The vehicle tire impact resistance performance evaluation device includes: a memory, a processor, and a vehicle tire impact resistance performance evaluation program stored in the memory and executable on the processor. The vehicle tire impact resistance performance evaluation program is configured to implement the vehicle tire impact resistance performance evaluation method according to any one of claims 1 to 5.

8. A storage medium, characterized in that: The storage medium stores a vehicle tire impact resistance performance evaluation program, and when the vehicle tire impact resistance performance evaluation program is executed by the processor, the vehicle tire impact resistance performance evaluation method according to any one of claims 1 to 5 is implemented.

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