Damage determination method, device and electronic device

Abstract

The present invention discloses a method, device and electronic device for determining damage. Among them, the method includes: determining a damage simulation vehicle model and a first target site on the damage simulation vehicle model, where the damage simulation vehicle model is obtained by a first target impact object impacting a second target site on a target simulation vehicle model according to first target impact parameters, and the target simulation vehicle model is determined according to target vehicle parameters; determining a second target impact object and second target impact parameters for the second target impact object to impact the first target site; determining a target acceleration curve of the second target impact object impacting the first target site according to the second target impact parameters; and determining a target damage degree value of the second target impact object according to the target acceleration curve. The present invention solves the technical problem in the related art that when an impact object impacts a damage simulation vehicle, the accuracy of the determined damage degree value is relatively low.

Description

Technical Field

[0001] The present invention relates to the field of automobiles, and in particular, to a method, device and electronic device for determining damage. Background Art

[0002] The safety performance of automobiles is an important concern of automobile products. With the increasing number of automobiles, various traffic accidents are increasing. The passive safety performance of automobiles themselves is becoming more and more important. At the same time, as important road traffic participants, the safety of pedestrians during the traffic process is being paid more and more attention.

[0003] The CAE (Computer Aided Engineering) approximate numerical analysis method is an important development means in pedestrian protection. Applying CAE simulation can reduce the number of tests, predict test scores, save development funds, and shorten the development cycle. However, CAE simulation usually has differences from specific tests. Due to the constraints of factors such as the manufacturing accuracy of sample vehicle parts, assembly processability, test environment, and test impact conditions, there are deviations between the CAE simulation results and the test results. Therefore, after a round of tests, calibration work is usually carried out on the simulated automobile model. By controlling factors such as materials, impact positions, impact speeds, and model assembly relationships, the damage degree value determined by the head form is highly fitted with the actual damage degree value. Applying the calibrated model in the next simulation calculation can greatly improve the accuracy of the simulation. However, in related technologies, when multiple rounds of tests are completed, the simulated automobile model is usually re-determined based on the fitting degree, resulting in a certain deviation between the determined damage degree value and the actual damage degree value.

[0004] To address the above problems, no effective solution has been proposed yet. Summary of the Invention

[0005] Embodiments of the present invention provide a method, device and electronic device for determining damage, so as to at least solve the technical problem of low accuracy of the determined damage degree value when an impact object impacts a simulated automobile in related technologies.

[0006] According to one aspect of an embodiment of the present invention, a method for determining damage is provided, including: determining a damaged simulation vehicle model and a first target site on the damaged simulation vehicle model, wherein the damaged simulation vehicle model is obtained by a first target impact object impacting a second target site on a target simulation vehicle model according to first target impact parameters, and the target simulation vehicle model is determined according to target vehicle parameters; determining a second target impact object and second target impact parameters for the second target impact object to impact the first target site; determining a target acceleration curve for the second target impact object to impact the first target site according to the second target impact parameters; and determining a target damage degree value for the second target impact object according to the target acceleration curve.

[0007] Optionally, before determining the damaged simulation vehicle model and the first target site on the damaged simulation vehicle model, it further includes: obtaining first test data, wherein the first test data includes test vehicle parameters, test sites, test impact objects, test impact parameters for the test impact object to impact the test site, and a test acceleration curve for the test impact object to impact the test site; determining an initial simulation vehicle model, a second target site on the initial simulation vehicle model, the first target impact object, and the first target impact parameters corresponding to the first target impact object according to the first test data; the first target impact object impacts the second target site according to the first target impact parameters, and determining an initial acceleration curve for the first target impact object to impact the second target site; and determining the target vehicle parameters according to the initial acceleration curve and the test acceleration curve.

[0008] Optionally, determining the target vehicle parameters according to the initial acceleration curve and the test acceleration curve includes: determining a fitting degree between the initial acceleration curve and the test acceleration curve, and in the case where the fitting degree is less than a first predetermined threshold, adjusting the test vehicle parameters to obtain the target vehicle parameters.

[0009] Optionally, obtaining the first test data includes: in the case where the first test data further includes a test damage degree value of the test impact object, comparing the test damage degree value with a second predetermined threshold; and in the case where the test damage degree value is greater than the second predetermined threshold, updating the first test data to obtain updated first test data.

[0010] Optionally, determining the first target site on the damaged simulation vehicle model includes: dividing a predetermined number of partitions on the damaged simulation vehicle model; determining a target partition among the predetermined number of partitions; and determining the first target site on the damaged simulation vehicle model in the target partition.

[0011] Optionally, after determining the target damage degree value of the second target impact object according to the target acceleration curve, the method further includes: adjusting the target vehicle parameters when the target damage degree value is greater than a second predetermined threshold.

[0012] Optionally, after determining the target damage degree value of the second target impact object according to the target acceleration curve, the method further includes: determining a secondary damage simulation vehicle model, where the secondary damage simulation vehicle model is obtained by the second target impact object impacting the damage simulation vehicle model according to the second target impact parameters.

[0013] According to one aspect of an embodiment of the present invention, there is provided a damage determination device, including: a first determination module, configured to determine a damage simulation vehicle model and a first target site on the damage simulation vehicle model, where the damage simulation vehicle model is obtained by a first target impact object impacting a target simulation vehicle model according to first target impact parameters, and the target simulation vehicle model is determined according to target vehicle parameters; a second determination module, configured to determine a second target impact object and second target impact parameters for the second target impact object to impact the first target site; a third determination module, configured to determine a target acceleration curve for the second target impact object to impact the first target site according to the second target impact parameters; a fourth determination module, configured to determine a target damage degree value of the second target impact object according to the target acceleration curve.

[0014] According to one aspect of an embodiment of the present invention, there is provided an electronic device, including: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the damage determination method described in any one of the above.

[0015] According to one aspect of an embodiment of the present invention, there is provided a computer-readable storage medium, when instructions in the computer-readable storage medium are executed by a processor of an electronic device, enabling the electronic device to execute the damage determination method described in any one of the above.

[0016] In an embodiment of the present invention, a damaged simulation vehicle model and a first target site on the damaged simulation vehicle model are determined, a second target impact object is determined, and second target impact parameters for the second target impact object to impact the first target site are determined. The second target impact object impacts the first target site according to the second target impact parameters, a target acceleration curve of the second target impact object impacting the first target site according to the second target impact parameters is determined, and a target damage degree value of the second target impact object is determined according to the target acceleration curve. That is, the acceleration curve and the corresponding damage degree value when the second target impact object impacts the damaged simulation vehicle model can be determined. Since the damaged simulation vehicle model is obtained by a first target impact object impacting a second target site on a target simulation vehicle model according to first target impact parameters, it can be known that the damaged simulation vehicle model is obtained by impacting the target simulation vehicle model, where the target simulation vehicle model is determined according to target vehicle parameters and can greatly restore a real vehicle. Therefore, the damaged simulation vehicle model obtained by impacting the target simulation vehicle model can also greatly restore the damaged vehicle subjected to the impact, thereby solving the technical problem of low accuracy of the determined damage degree value when the impact object impacts the loss simulation vehicle in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 is a flowchart of a damage determination method according to an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of a simulation acceleration curve, a test acceleration curve, and a calibrated acceleration provided by an alternative embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of an impact site in an alternative embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of the impact sequence of the impact site in an alternative embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of the acceleration when simulating the damage of a vehicle model once provided by an alternative embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the acceleration when simulating the damage of a vehicle model twice provided by an alternative embodiment of the present invention;

[0024] Figure 7 is a structural block diagram of a damage determination device according to an embodiment of the present invention. Detailed implementation manners

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0027] Embodiment 1

[0028] According to an embodiment of the present invention, an embodiment of a damage determination method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that here.

[0029] Figure 1 is a flowchart of the damage determination method according to an embodiment of the present invention, as Figure 1 shown, the method includes the following steps:

[0030] Step S10, determine a damage simulation vehicle model and a first target site on the damage simulation vehicle model, where the damage simulation vehicle model is obtained by a first target impact object impacting a second target site on a target simulation vehicle model according to first target impact parameters, and the target simulation vehicle model is determined according to target vehicle parameters;

[0031] Step S104, determine a second target impact object and second target impact parameters for the second target impact object to impact the first target site;

[0032] Step S106: Determine the target acceleration curve of the second target impact object impacting the first target site according to the second target impact parameter;

[0033] Step S108: Determine the target damage degree value of the second target impact object according to the target acceleration curve.

[0034] Through the above steps, determine the damage simulation vehicle model and the first target site on the damage simulation vehicle model, determine the second target impact object, and the second target impact parameter of the second target impact object impacting the first target site, so that the second target impact object impacts the first target site according to the second target impact parameter, determine the target acceleration curve of the second target impact object impacting the first target site according to the second target impact parameter, and determine the target damage degree value of the second target impact object according to the target acceleration curve. That is, the acceleration curve and the corresponding damage degree value when the second target impact object impacts the damage simulation vehicle model can be determined. Since the damage simulation vehicle model is obtained by the first target impact object impacting the second target site on the target simulation vehicle model according to the first target impact parameter, it can be known that the damage simulation vehicle model is obtained by impacting the target simulation vehicle model, where the target simulation vehicle model is determined according to the target vehicle parameters and can greatly restore the real vehicle. Therefore, the damage simulation vehicle model obtained by impacting the target simulation vehicle model can also greatly restore the damaged vehicle under impact, thus solving the technical problem of low accuracy of the determined damage degree value when the impact object impacts the loss simulation vehicle in the related technology.

[0035] It should be noted that the application scenario of this application is the scenario where the target impact object impacts the simulation vehicle model, and determine the degree of damage suffered by the target impact object when impacting the simulation vehicle model. To debug the simulation vehicle model according to this degree of damage to achieve the purpose of controlling the degree of damage to the target impact object within a reasonable range.

[0036] Among them, the above-mentioned first target impact object refers to the impact object when impacting the target simulation vehicle model, which can be a ball, a simulated head shape, etc. The above-mentioned second target impact object refers to the impact object when impacting the damage simulation vehicle model, which can also be a ball, a simulated head shape, etc. The above-mentioned first target impact object and the second target impact object can be the same, that is, the same target impact object impacts the target simulation vehicle model to obtain the damage simulation vehicle model, and then impacts the damage simulation vehicle model. The first target site is the impact point when the second target impact object impacts the target simulation vehicle model, and the second target site is the impact point when the first target object impacts the damage simulation vehicle model.

[0037] As an alternative embodiment, when determining the first target site on the damaged simulation vehicle model, the target site can be determined by partitioning. For example, the following method can be adopted: divide a predetermined number of partitions on the damaged simulation vehicle model. Among them, the partitions can be the front hood impact area, the center hood impact area, the side hood impact area, the headlight impact area, the hinge impact area, the water tank cover impact area, the wiper shaft impact area, the windshield impact area, and so on. Determine the target partition among the predetermined number of partitions, and determine the first target site on the damaged simulation vehicle model in the target partition. The damage degree value of the partition can be determined for the partition, so that the obtained damage degree value is more targeted, and the partition with a large damage degree value can be better processed, accelerating the processing process.

[0038] As an alternative embodiment, before determining the damaged simulation vehicle model and the first target site on the damaged simulation vehicle model, the following steps can also be included: obtain the first test data, where the first test data includes test vehicle parameters, test sites, test impact objects, test impact parameters of the test impact object impacting the test site, and the test acceleration curve of the test impact object impacting the test site. Optionally, determine the initial simulation vehicle model according to the test vehicle parameters; determine the second target site on the initial simulation vehicle model according to the test site; determine the first target impact object according to the test impact object; determine the first target impact parameter corresponding to the first target impact object according to the test impact parameters of the test impact object impacting the test site. Furthermore, the first target impact object can impact the second target site according to the first target impact parameter to determine the initial acceleration curve of the first target impact object impacting the second target site. Then, according to the initial acceleration curve and the test acceleration curve, determine the target vehicle parameters. That is, the target vehicle parameters that conform to the actual situation can be adjusted according to the first test data, so as to determine the target vehicle model. The target simulation vehicle model for impact is in line with the actual expectation, and the determined acceleration curve and damage degree value can be made more accurate for better debugging.

[0039] Optionally, when determining the target vehicle parameters based on the initial acceleration curve and the test acceleration curve, it can be determined according to the goodness of fit, and the following method can be adopted: Determine the goodness of fit between the initial acceleration curve and the test acceleration curve. When the goodness of fit is greater than or equal to the first predetermined threshold, directly use the test vehicle parameters as the target vehicle parameters; when the goodness of fit is less than the first predetermined threshold, adjust the test vehicle parameters to obtain the target vehicle parameters. Among them, the vehicle parameters can be various parameters. For example, they can be the material thickness, the assembly relationship of the vehicle model, and so on. That is, the material thickness in the test vehicle parameters, or parameters such as the assembly relationship of the vehicle model can be adjusted to obtain the target vehicle parameters. It should be noted that for the target simulation vehicle model determined based on the obtained target vehicle parameters, the goodness of fit between the obtained acceleration curve and the test acceleration curve is greater than or equal to the first predetermined threshold. Thus, it can be ensured that the data obtained based on the model is as consistent as possible with the data obtained based on the test, avoiding errors or large deviations.

[0040] As an alternative embodiment, when obtaining the first test data, it should also be noted that when the first test data also includes the test damage degree value of the test impact object, compare the test damage degree value with the second predetermined threshold. When the test damage degree value is less than or equal to the second predetermined threshold, the first test data can be used for subsequent operations; when the test damage degree value is greater than the second predetermined threshold, the first test data needs to be updated to obtain the updated first test data. That is, it is determined that the first test data is unavailable. Because when the damage degree value of the first test data is relatively high, it proves that the vehicle does not meet the standard under the corresponding test vehicle parameters, and subsequent operations do not need to be carried out. Therefore, the first test data needs to be updated to obtain data that meets the standard. Among them, the second predetermined threshold can be obtained according to regulations, or can be determined according to actual applications and requirements. With the development of the times, the second predetermined threshold obtained according to regulations may decrease, or as the safety requirements increase, the second threshold may decrease. It is necessary to obtain the updated second threshold and compare the test damage degree value in the test data with it. When the test damage degree value is greater than the second predetermined threshold, new test data needs to be obtained. This ensures that the first test data keeps up with the times and meets the requirements.

[0041] As an alternative embodiment, when determining the above-mentioned multiple acceleration curves, it can be obtained through an acceleration sensor, which is not limited herein and can be set accordingly according to actual applications and scenarios. Optionally, when determining the target damage degree value of the second target impact object based on the target acceleration curve, the target damage degree value can be obtained based on the acceleration value or the distribution of acceleration represented in the acceleration curve. When the acceleration value is too large, it indicates that the target impact object is more severely damaged. Therefore, the target damage degree of the second target impact object can be accurately reflected through the target acceleration curve.

[0042] As an alternative embodiment, after determining the target damage degree value of the second target impact object, it further includes: adjusting the target vehicle parameters when the target damage degree value is greater than a second predetermined threshold. That is, when the target damage degree value is greater than the second predetermined threshold, it indicates that for the damage simulation vehicle model, the current target vehicle parameters are not safe enough for the impact object. Therefore, it is necessary to adjust the target vehicle parameters to ensure that the newly obtained damage simulation vehicle model is safe for the impact object.

[0043] As an alternative embodiment, after determining the target damage degree value of the second target impact object based on the target acceleration curve, a secondary damage simulation vehicle model can also be determined, where the secondary damage simulation vehicle model is obtained by the second target impact object impacting the damage simulation vehicle model according to the second target impact parameters. By determining the secondary damage simulation vehicle model, the impact object and impact parameters can be determined again, and the acceleration curve and damage degree value can be obtained. That is, the performance of the secondary damage simulation vehicle model can be judged. By analogy, the damage degree values of multiple damage simulation vehicle models can be judged, ensuring that the damage degree values of the damage simulation vehicle models can be accurately determined, solving the problem in the related art where only the impact object impacts the intact simulation vehicle to determine the damage degree of the impact object, but there is no solution for the impact object to impact the damaged simulation vehicle to determine the damage degree of the impact object, and expanding the scenario for determining the damage degree.

[0044] Based on the above embodiments and alternative embodiments, an alternative implementation manner is provided, which is specifically described below.

[0045] An alternative implementation manner of the present invention provides a method for determining simulated head injury, which can determine the damage degree values during continuous multiple impacts and improve the accuracy of the determined damage degree values. Taking the target impact object as a simulated head and three consecutive impacts as an example, the alternative implementation manner of the present invention is introduced in detail below:

[0046] First of all, it should be noted that in the alternative embodiment of the present invention, the process of obtaining the impact simulation vehicle model of the impact object and obtaining the target acceleration curve is defined as the calibration process.

[0047] S1. Obtain test data, where the test data includes test vehicle parameters, test sites, test impact objects, test impact parameters of the test impact object impacting the test site, and the test acceleration curve of the test impact object impacting the test site;

[0048] S2. Determine the initial simulation vehicle model, the initial impact site on the initial simulation vehicle model, and the initial impact parameters of the simulated head form impacting the initial simulation vehicle model object according to the test data;

[0049] S3. Prepare the initial simulation vehicle model for testing. Confirm the fuel tank volume status, tire pressure, vehicle height, suspension adjustment, etc., so that the initial simulation vehicle model maintains normal driving for subsequent operations;

[0050] S4. The simulated head form impacts the initial impact site on the initial simulation vehicle model according to the initial impact parameters, completes the initial impact, and determines the initial acceleration curve of the simulated head form impacting the initial impact site;

[0051] S5. Determine the fitting degree between the initial acceleration curve and the test acceleration curve. When the fitting degree is less than 95%, use the initial acceleration curve, the test acceleration curve, and the high-speed camera to adjust the test vehicle parameters. First, judge the influencing factors, and make the fitting degree between the initial acceleration curve and the test acceleration curve greater than or equal to the predetermined threshold by modifying factors such as material thickness and model assembly relationship to obtain the target vehicle parameters;

[0052] Figure 2 It is a schematic diagram of the simulated acceleration curve, the test acceleration curve, and the calibrated acceleration provided by the alternative embodiment of the present invention. Among them, the simulation curve refers to the initial impact acceleration curve, the test curve refers to the test acceleration curve, and the calibrated acceleration curve is the acceleration curve obtained by impacting the target simulation vehicle model based on the target vehicle parameters. As Figure 2 shown, by comparing the initial acceleration curve with the test acceleration curve, it can be seen that the slope of the initial acceleration curve decreases at 0.005 s. The reason is judged to be poor adhesive, material difference of the locking reinforcement plate, or hood assembly difference; the peak value in the middle section of the initial acceleration curve is relatively high, and the reason is judged to be the material difference of the hood outer panel. Process the model, that is, adjust the test vehicle parameters, reduce the adhesive grid and perform failure treatment to simulate poor adhesion, modify the material, simulate the change of material thickness, etc., and calibrate in turn. Finally, it is judged that the reason for the difference between the initial acceleration curve and the test acceleration curve is poor adhesion and hood outer panel thickness difference during the experiment. Finally, the target vehicle parameters are obtained, so that the fitting degree between the initial acceleration curve and the test acceleration curve is greater than 95%.

[0053] S6. Determine the target simulation vehicle model based on the target vehicle parameters, and determine the first impact site, the second impact site, the third impact site on the target simulation vehicle model, and the first impact parameters for the simulated headform to impact the target simulation vehicle model object;

[0054] Figure 3 It is a schematic diagram of the impact sites in an alternative embodiment of the present invention. Figure 4 It is a schematic diagram of the impact sequence of the impact sites in an alternative embodiment of the present invention. As shown in Figure 3 , 4, it should be noted that during the impact process, control the three headform impactors to impact the simulation vehicle model in sequence with a time interval of at least 20 ms. In this way, when the first point impact is completed, damage appears on the target simulation vehicle model. The second point continues to impact the damaged model. After the second point impact is completed, the damage of the vehicle model is further superimposed. The third point continues to impact the vehicle model with superimposed damage. Use this method to simulate the vehicle damage in the test to achieve the purpose of quantifying the damage simulation.

[0055] Since the target vehicle parameters are already adjusted parameters, the obtained target vehicle model has been greatly restored. Therefore, there is no need to adjust the relevant parameters of the vehicle model. During subsequent multiple impacts, only adjust the impact parameters, such as offset 3 - 5 mm in one direction of X, Y, and Z, reduce or increase the impact speed, and adjust parameters such as the impact angle of the impactor.

[0056] S7. Determine the first impact parameters for the simulated headform to impact the target simulation vehicle model, and obtain the acceleration curve of the simulated headform impacting the first impact point according to the first impact parameters and the primary damage simulation vehicle model; determine the second impact parameters for the simulated headform to impact the primary damage simulation vehicle model, and obtain the acceleration curve of the simulated headform impacting the second impact point according to the second impact parameters and the secondary damage simulation vehicle model; determine the third impact parameters for the simulated headform to impact the secondary damage simulation vehicle model, and obtain the acceleration curve of the simulated headform impacting the third impact point according to the third impact parameters;

[0057] It should be noted that the primary damage simulation vehicle model and the secondary damage simulation vehicle model can also be corrected. Figure 5 It is a schematic diagram of the acceleration when the primary damage simulation vehicle model is provided in an alternative embodiment of the present invention. Figure 6 A schematic diagram of the acceleration when the secondary damage simulation vehicle model is provided in an alternative embodiment of the present invention. As shown in Figure 5, as shown in 6, the single calibration curve is the acceleration curve when the impact- intact vehicle simulation model is impacted, the test curve is the acceleration curve in the test data, and the calibration curve of this method is the acceleration curve obtained after calibrating the model. The calibration process is similar to the above S1 - S5 process, that is, the test data corresponding to the acceleration curves of the first and second impacts are determined, the acceleration curves in this process are compared with the acceleration curves in the test, and their fitting degrees are determined. If the fitting degrees are all above 95%, it means that the simulation models of the vehicle with primary damage and the vehicle with secondary damage meet the expectations. Otherwise, according to the results, the influencing factors can be judged and corrected.

[0058] S8. Determine multiple groups, and sequentially perform the above S6 - S7 steps for each group to perform damage coupling calibration on multiple points. Usually, there are 65 calibration points in the test. Therefore, by using the method provided in the optional embodiment of the present invention, only 22 tests are required. Based on the acceleration data obtained from the above tests, the damage degree value of the simulation vehicle model when the simulated head impacts the target, the damage degree value of the simulation vehicle model with primary damage when impacted, and the damage degree value of the result of the simulation vehicle model with secondary impact can be measured. The vehicle can be comprehensively judged according to these degree values.

[0059] Through the above optional embodiments, at least the following beneficial effects can be achieved: In the actual calibration process, the single - point calibration method is adopted, that is, a vehicle model in good condition is used to calibrate each impact point. However, the method provided in the optional embodiment of the present invention replaces the vehicle after hitting multiple points on the same simulation vehicle, shortening the project development cycle. And considering the problem of the damaged simulation vehicle, that is, the simulation states of the second and third points hit on the same simulation vehicle are inconsistent with the test states, and there are often problems such as difficult calibration and low accuracy, the simulation calibration accuracy and efficiency are improved.

[0060] It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0061] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to enable a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0062] Embodiment 2

[0063] According to an embodiment of the present invention, there is also provided a device for implementing the above damage determination method. Figure 7 It is a structural block diagram of a damage determination device according to an embodiment of the present invention, as Figure 7 shown. The device includes: a first determination module 702, a second determination module 704, a third determination module 706, and a fourth determination module 708. The following is a detailed description of the device.

[0064] The first determination module 702 is used to determine a damaged simulation vehicle model and a first target site on the damaged simulation vehicle model. Among them, the damaged simulation vehicle model is obtained by a first target impact object impacting a target simulation vehicle model according to first target impact parameters, and the target simulation vehicle model is determined according to target vehicle parameters; the second determination module 704 is connected to the above first determination module 702 and is used to determine a second target impact object and second target impact parameters for the second target impact object to impact the first target site; the third determination module 706 is connected to the above second determination module 704 and is used to determine a target acceleration curve for the second target impact object to impact the first target site according to the second target impact parameters; the fourth determination module 708 is connected to the above third determination module 706 and is used to determine a target damage degree value of the second target impact object according to the target acceleration curve.

[0065] It should be noted here that the above first determination module 702, second determination module 704, third determination module 706, and fourth determination module 708 correspond to steps S102 to S108 in the implementation of the damage determination method. The examples and application scenarios implemented by multiple modules and corresponding steps are the same, but are not limited to the content disclosed in the above Embodiment 1.

[0066] Embodiment 3

[0067] According to another aspect of the embodiments of the present invention, there is also provided an electronic device, including: a processor; and a memory for storing instructions executable by the processor, wherein the processor is configured to execute the instructions to implement the damage determination method of any one of the above.

[0068] Embodiment 4

[0069] According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium. When the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device can execute the damage determination method of any one of the above.

[0070] The serial numbers of the embodiments of the present invention above are only for description and do not represent the advantages or disadvantages of the embodiments.

[0071] In the above embodiments of the present invention, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0072] In several embodiments provided by the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only illustrative. For example, the division of the units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of units or modules can be in an electrical or other form.

[0073] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0074] In addition, the functional units in the various embodiments of the present invention can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0075] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, read-only memories (ROMs), random access memories (RAMs), mobile hard disks, magnetic disks, or optical discs.

[0076] The foregoing is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A method for determining damage, characterized in that, Including: Determine a damage simulation vehicle model and a first target site on the damage simulation vehicle model, where the damage simulation vehicle model is obtained by a first target impact object impacting a second target site on a target simulation vehicle model according to first target impact parameters, and the target simulation vehicle model is determined according to target vehicle parameters; Determine a second target impact object and second target impact parameters for the second target impact object to impact the first target site; Determine a target acceleration curve for the second target impact object to impact the first target site according to the second target impact parameters; Determine a target damage degree value of the second target impact object according to the target acceleration curve; Determine a secondary damage simulation vehicle model, where the secondary damage simulation vehicle model is obtained by the second target impact object impacting the damage simulation vehicle model according to the second target impact parameters.

2. The method according to claim 1, wherein Before determining the damage simulation vehicle model and the first target site on the damage simulation vehicle model, it further includes: Obtain first test data, where the first test data includes test vehicle parameters, test sites, test impact objects, test impact parameters for the test impact object to impact the test site, and a test acceleration curve for the test impact object to impact the test site; Determine an initial simulation vehicle model, a second target site on the initial simulation vehicle model, the first target impact object, and the first target impact parameters corresponding to the first target impact object according to the first test data; The first target impact object impacts the second target site according to the first target impact parameters to determine an initial acceleration curve for the first target impact object to impact the second target site; Determine the target vehicle parameters according to the initial acceleration curve and the test acceleration curve.

3. The method according to claim 2, characterized in that, The determining the target vehicle parameters according to the initial acceleration curve and the test acceleration curve includes: Determine the fitting degree between the initial acceleration curve and the test acceleration curve, and in the case where the fitting degree is less than a first predetermined threshold, adjust the test vehicle parameters to obtain the target vehicle parameters.

4. The method according to claim 2, characterized in that, The obtaining the first test data includes: In the case where the test damage degree value of the test impact object is further included in the first test data, compare the test damage degree value with a second predetermined threshold; In the case where the test damage degree value is greater than the second predetermined threshold, update the first test data to obtain updated first test data.

5. The method according to claim 1, characterized in that, Determining the first target site on the damage simulation vehicle model includes: Divide a predetermined number of partitions on the damage simulation vehicle model; Determine a target partition among the predetermined number of partitions; Determine the first target site on the damage simulation vehicle model in the target partition.

6. The method according to claim 1, characterized in that After determining the target damage degree value of the second target impact object according to the target acceleration curve, it further includes: In the case where the target damage degree value is greater than the second predetermined threshold, adjust the target vehicle parameters.

7. An injury determination device, characterized in that, Including: A first determination module, configured to determine a damaged simulation vehicle model and a first target site on the damaged simulation vehicle model, where the damaged simulation vehicle model is obtained by a first target impact object impacting a target simulation vehicle model according to first target impact parameters, and the target simulation vehicle model is determined according to target vehicle parameters; A second determination module, configured to determine a second target impact object and second target impact parameters for the second target impact object to impact the first target site; A third determination module, configured to determine a target acceleration curve for the second target impact object to impact the first target site according to the second target impact parameters; A fourth determination module, configured to determine a target damage degree value of the second target impact object according to the target acceleration curve; Wherein, the fourth determination module is further configured to determine a secondary damaged simulation vehicle model, where the secondary damaged simulation vehicle model is obtained by the second target impact object impacting the damaged simulation vehicle model according to the second target impact parameters.

8. An electronic device, characterized in that, Comprising: A processor; A memory for storing instructions executable by the processor; Wherein, the processor is configured to execute the instructions to implement the damage determination method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, When the instructions in the computer-readable storage medium are executed by the processor of the electronic device, the electronic device is enabled to execute the damage determination method according to any one of claims 1 to 6.

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