Vehicle rainy day simulation test method, device, equipment and readable storage medium

Abstract

The present invention provides a vehicle rainy day simulation test method, device, equipment and readable storage medium. The vehicle rainy day simulation test method comprises: determining the original rainfall and original wind speed; calculating the test wind speed according to the original wind speed and the preset vehicle speed; forming a test environment based on the original rainfall and the test wind speed; obtaining the water inflow condition of the vehicle's air intake system, wherein the vehicle is located in the test environment. Through the present invention, when the vehicle is stationary, the actual situation of the vehicle driving at the preset vehicle speed in the rainy day environment corresponding to the original rainfall and the original wind speed is simulated, thereby improving the simulation accuracy and the test effect.

Description

Technical Field

[0001] The present invention relates to the field of vehicle detection technology, and in particular to a vehicle rainy day simulation test method, device, equipment and a readable storage medium. Background Art

[0002] When vehicles are driving in the rain, water often enters the air intake system. In related technologies, vehicles are subjected to rainy day simulation tests in wind tunnel test rooms. The rainy day environment is simulated through relevant parameters such as rainfall and wind speed, and the water ingress situation of the air intake system in the rainy day environment is obtained, which is helpful for studying the countermeasures for water ingress. However, the current vehicle rainy day simulation test method cannot accurately simulate the actual situation of the vehicle driving in the rain, and the test effect is poor. Summary of the invention

[0003] The main purpose of the present invention is to provide a vehicle rainy day simulation test method, device, equipment and readable storage medium, aiming to solve the problem that the vehicle rainy day simulation test method in the prior art cannot accurately simulate the actual situation of the vehicle when driving in the rain, and the test effect is poor.

[0004] In a first aspect, the present invention provides a vehicle rainy day simulation test method, the vehicle rainy day simulation test method comprising:

[0005] Determine the original rainfall and original wind speed;

[0006] Calculate the test wind speed based on the original wind speed and the preset vehicle speed;

[0007] forming a test environment based on the original rainfall and the test wind speed;

[0008] Acquiring water ingress conditions of an air intake system of a vehicle, wherein the vehicle is located in the test environment.

[0009] Furthermore, in one embodiment, the step of determining the original rainfall and the original wind speed includes:

[0010] Determine rainfall levels and wind speed levels;

[0011] The original rainfall is determined according to the rainfall level, and the original wind speed is determined according to the wind force level.

[0012] Furthermore, in one embodiment, the step of calculating the test wind speed according to the original wind speed and the preset vehicle speed includes:

[0013] The vector of the test wind speed is obtained by subtracting the vector of the preset vehicle speed from the vector of the original wind speed.

[0014] Furthermore, in one embodiment, the step of calculating the test wind speed according to the original wind speed and the preset vehicle speed includes:

[0015] If the original wind speed is in the same direction as the preset vehicle speed, the test wind speed is obtained by subtracting the preset vehicle speed from the original wind speed;

[0016] If the original wind speed is in opposite directions to the preset vehicle speed, the original wind speed is added to the preset vehicle speed to obtain the test wind speed.

[0017] Furthermore, in one embodiment, the step of obtaining the water ingress condition of the air intake system of the vehicle, wherein the vehicle is located in the test environment, comprises:

[0018] Obtain water accumulation values ​​at preset positions on the vehicle, wherein the vehicle is located in the test environment, and the preset positions include an air filter inlet, an air filter outlet, and a bottom of an intercooler outlet pipe.

[0019] Furthermore, in one embodiment, after the step of obtaining the water ingress condition of the vehicle's air intake system, the following step is further included:

[0020] Obtaining the intake pressure of each cylinder of the engine of the vehicle;

[0021] The water accumulation value and the intake pressure when the engine misfires are recorded.

[0022] Furthermore, in one embodiment, the step of obtaining the water ingress condition of the vehicle's air intake system further includes:

[0023] Obtain a video of the water volume at the preset location.

[0024] In a second aspect, the present invention further provides a vehicle rainy day simulation test device, the vehicle rainy day simulation test device comprising:

[0025] A determination module, used for determining the original rainfall and the original wind speed;

[0026] A calculation module, used for calculating the test wind speed according to the original wind speed and the preset vehicle speed;

[0027] An environment module, used for forming a test environment based on the original rainfall and the test wind speed;

[0028] The acquisition module is used to obtain water ingress conditions of an air intake system of a vehicle, wherein the vehicle is located in the test environment.

[0029] In a third aspect, the present invention also provides a vehicle rainy day simulation test device, which includes a processor, a memory, and a vehicle rainy day simulation test program stored in the memory and executable by the processor, wherein when the vehicle rainy day simulation test program is executed by the processor, the steps of the above-mentioned vehicle rainy day simulation test method are implemented.

[0030] In a fourth aspect, the present invention further provides a readable storage medium, wherein the readable storage medium stores a vehicle rainy day simulation test program, wherein when the vehicle rainy day simulation test program is executed by a processor, the steps of the vehicle rainy day simulation test method are implemented.

[0031] In the present invention, the original rainfall and the original wind speed are determined; the test wind speed is calculated according to the original wind speed and the preset vehicle speed; the test environment is formed based on the original rainfall and the test wind speed; and the water inflow condition of the vehicle's air intake system is obtained, wherein the vehicle is located in the test environment. Through the present invention, when the vehicle is stationary, the actual situation of the vehicle driving at the preset vehicle speed in the rainy environment corresponding to the original rainfall and the original wind speed is simulated, thereby improving the simulation accuracy and the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a flow chart of a vehicle rainy day simulation test method in one embodiment of the present invention;

[0033] Figure 2 for Figure 1 The flowchart of step S11 in the vehicle rainy day simulation test method is shown;

[0034] Figure 3 Schematic diagram of a vehicle in one embodiment of the present invention under original wind speed and test wind speed respectively;

[0035] Figure 4 for Figure 1 The flowchart of step S14 in the vehicle rainy day simulation test method is shown;

[0036] Figure 5 It is a schematic diagram of the hardware structure of a vehicle rainy day simulation test device in one embodiment of the present invention;

[0037] Figure 6 The figure is a schematic diagram of the hardware structure of a vehicle rainy day simulation test device in one embodiment of the present invention.

[0038] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0040] In a first aspect, an embodiment of the present invention provides a vehicle rainy day simulation test method.

[0041] Figure 1 The figure shows a flow chart of a vehicle rainy day simulation test method in one embodiment of the present invention.

[0042] Reference Figure 1In one embodiment, the vehicle rainy day simulation test method comprises the following steps:

[0043] S11, determining the original rainfall and original wind speed;

[0044] Specifically, the basic approach of the vehicle rainy day simulation test is to simulate the rainy day environment through relevant parameters such as rainfall and wind speed, and obtain the water ingress situation of the vehicle's air intake system in the rainy day environment. In this embodiment, the original rainfall and the original wind speed are the parameters of the actual environment that the test needs to simulate. It can be understood that the water ingress situation of the air intake system when the vehicle is driving on a rainy day is related to the specific rainy day environment. For example, the greater the rainfall, the easier it is to cause water ingress into the air intake system, and the direction and size of the wind speed will also affect the landing trajectory of raindrops, thereby affecting the water ingress situation of the air intake system. By changing the original rainfall and the original wind speed, the driving conditions of the vehicle in different rainy day environments can be simulated, which is helpful to study the countermeasures for water ingress in different rainy day environments and improve the reference significance of the test data.

[0045] Figure 2 Shows Figure 1 The flowchart of step S11 in the vehicle rainy day simulation test method is shown.

[0046] Reference Figure 2 As an optional implementation, step S11 specifically includes:

[0047] S111. Determine the rainfall level and wind force level;

[0048] S112. Determine the original rainfall according to the rainfall level, and determine the original wind speed according to the wind force level.

[0049] In this embodiment, the rainfall level and wind force level are both standard levels defined by the meteorological department. Specifically, according to the different rainfall, the rainfall level is divided into seven levels: trace rainfall, light rain, moderate rain, heavy rain, rainstorm, heavy rainstorm and extremely heavy rainstorm: less than 0.1 mm rainfall in 24 hours is trace rainfall; rainfall between 0.1 mm and 4.9 mm in 12 hours or between 0.1 mm and 9.9 mm in 24 hours is light rain; rainfall between 5.0 mm and 14.9 mm in 12 hours or between 10 mm and 24.9 mm in 24 hours is moderate rain; rainfall between 15.0 mm and 29.9 mm in 12 hours is heavy rain. Rainfall between 30.0 mm and 69.9 mm in 12 hours or between 50.0 mm and 99.9 mm in 24 hours is considered heavy rain; rainfall between 70.0 mm and 139.9 mm in 12 hours or between 100.0 mm and 249.9 mm in 24 hours is considered heavy rain; rainfall greater than or equal to 140.0 mm in 12 hours or greater than or equal to 250.0 mm in 24 hours is considered extremely heavy rain.

[0050] According to the wind speed, the wind force level is divided into thirteen levels: the wind speed of level 0 is 0.0-0.2m / s, the wind speed of level 1 is 0.3-1.5m / s, the wind speed of level 2 is 1.6-3.3m / s, the wind speed of level 3 is 3.4-5.4m / s, the wind speed of level 4 is 5.5-7.9m / s, the wind speed of level 5 is 8.0-10.7m / s, and the wind speed of level 6 is The wind speed of level 7 wind is 13.9-17.1m / s, the wind speed of level 8 wind is 17.2-20.7m / s, the wind speed of level 9 wind is 20.8-24.4m / s, the wind speed of level 10 wind is 24.5-28.4m / s, the wind speed of level 11 wind is 28.5-32.6m / s, and the wind speed of level 12 wind is 32.7-36.9m / s.

[0051] The original rainfall and wind speed determined according to the rainfall level and wind force level can simulate a rainy day environment that is closer to the actual situation, thereby improving the reference significance of the test data. For example, the water ingress conditions in different rainy day environments simulated through the test are stored in the vehicle. When driving on a rainy day, the vehicle can predict the subsequent water ingress conditions according to the rainfall level and wind force level of the weather forecast, thereby prompting the user to take effective countermeasures.

[0052] S12, calculating the test wind speed based on the original wind speed and the preset vehicle speed;

[0053] Specifically, the vehicle rain simulation test is carried out in a wind tunnel test room. Due to the limitations of the test site, the vehicle is stationary during the test (that is, there is no relative motion between the vehicle and the ground). It can be understood that in an environment with the same wind speed, the wind conditions of the vehicle when it is stationary and when it is driving are different. Furthermore, the wind conditions of the vehicle will be different at different vehicle speeds when the vehicle is driving. Under the same rainfall, the wind conditions of the vehicle will affect the landing trajectory of raindrops, thereby affecting the water inflow of the intake system. If the influence of vehicle speed on wind conditions is ignored, it is impossible to accurately simulate the actual situation of the vehicle when driving in the rain, resulting in poor test results.

[0054] In this embodiment, the preset vehicle speed is the speed of the vehicle in the target situation to be simulated, which can be set as needed, and the present invention does not limit this. The wind condition of the vehicle when it is stationary at the test wind speed is close to the wind condition of the vehicle when it is traveling at the preset speed at the original wind speed. Correspondingly, under the same rainfall, the water ingress condition of the vehicle when it is stationary at the test wind speed is close to the water ingress condition of the vehicle when it is traveling at the preset speed at the original wind speed.

[0055] For fixed original rainfall and original wind speed, by setting different preset vehicle speeds and calculating the corresponding test wind speeds, it is possible to simulate the water ingress of the vehicle when it is driving at different speeds in the same rainy environment, thereby improving the reference significance of the test data. For example, the water ingress at different vehicle speeds in different rainy environments simulated through the test is stored in the vehicle. When driving in the rain, the vehicle can predict the water ingress at different vehicle speeds based on the rainfall level and wind level in the weather forecast, thereby prompting the user to control the vehicle speed.

[0056] Figure 3 A schematic diagram showing a vehicle in an embodiment of the present invention under original wind speed and test wind speed, respectively.

[0057] Furthermore, in one embodiment, step S12 specifically includes:

[0058] The vector of the test wind speed is obtained by subtracting the vector of the preset vehicle speed from the vector of the original wind speed.

[0059] Reference Figure 3 In this embodiment, the calculation formula of the test wind speed is as follows:

[0060]

[0061] is the vector of original wind speed, is the vector of the preset vehicle speed, is the vector of the test wind speed.

[0062] Assuming that the direction of the preset vehicle speed is parallel to the y direction, the component of v3 in the y direction is equal to the component of v1 in the y direction minus v2, and the component of v3 in the x direction is equal to the component of v1 in the x direction.

[0063] Furthermore, in one embodiment, step S12 specifically includes:

[0064] If the original wind speed is in the same direction as the preset vehicle speed, the test wind speed is obtained by subtracting the preset vehicle speed from the original wind speed;

[0065] If the original wind speed is in the opposite direction to the preset vehicle speed, add the original wind speed to the preset vehicle speed to obtain the test wind speed.

[0066] In this embodiment, only the case where the original wind speed is parallel to the preset speed is considered. Specifically, when the original wind speed is in the same direction as the preset speed, the test wind speed is equal to the original wind speed minus the absolute value of the preset speed. If the original wind speed is greater than the preset speed, the direction of the test wind speed is the same as the direction of the original wind speed. If the original wind speed is less than the preset speed, the direction of the test wind speed is opposite to the direction of the original wind speed. When the original wind speed is opposite to the preset speed, the test wind speed is equal to the original wind speed plus the preset speed, and the direction of the test wind speed is the same as the direction of the original wind speed. In this embodiment, the values ​​taken by the original wind speed and the preset speed during calculation are the absolute values ​​of the corresponding vectors.

[0067] S13, forming a test environment based on the original rainfall and test wind speed;

[0068] In this embodiment, a control command is input into the control system of the wind tunnel test room, and the control command is used to adjust the parameters of the rainfall simulation system and the fan system, so as to form a test environment corresponding to the original rainfall and the test wind speed. The water ingress situation of the vehicle when it is stationary in the test environment is close to the water ingress situation when the vehicle is driving at a preset speed in a rainy environment corresponding to the original rainfall and the original wind speed, thereby improving the simulation accuracy and test effect.

[0069] Optionally, the control instructions can also be used to adjust the temperature and humidity to simulate a more realistic rainy day environment.

[0070] S14. Obtaining water ingress conditions of an air intake system of a vehicle, wherein the vehicle is located in a test environment.

[0071] In this embodiment, a detection device is provided in the air intake system of the vehicle to obtain water ingress conditions of the air intake system of the vehicle during the test, which is helpful for studying countermeasures for water ingress conditions.

[0072] Figure 4 Shows Figure 1 FIG. 1 is a flow chart of step S14 in the vehicle rainy day simulation test method.

[0073] Furthermore, in one embodiment, step S14 specifically includes:

[0074] S141. Obtain water accumulation values ​​at preset positions on the vehicle, wherein the vehicle is located in a test environment, and the preset positions include an air filter inlet, an air filter outlet, and a bottom of an intercooler outlet pipe.

[0075] In this embodiment, the detection device includes water sensors arranged at the air filter inlet, the air filter outlet and the bottom of the intercooler outlet pipe, and the water accumulation value of the vehicle intake system during the test is obtained through the water sensors. On the one hand, these positions are convenient for the installation and removal of water sensors, and on the other hand, the water volume at these positions is uniform, which is conducive to the accurate measurement of the water accumulation value.

[0076] Optionally, the water accumulation value of the air intake system is collected in real time at a certain frequency during the test and recorded, so as to analyze the changing pattern of the water accumulation value during the test after the test, for example, the growth rate of the water accumulation value, when the water accumulation value reaches a stable state, etc.

[0077] Furthermore, in one embodiment, step S14 further includes:

[0078] S142, obtaining a water volume video at a preset location.

[0079] In this embodiment, the detection device also includes video cameras arranged at the air filter inlet, the air filter outlet and the bottom of the intercooler outlet pipe, and the video cameras are used to obtain the water volume video of the vehicle's air intake system during the test. These locations are convenient for the installation and removal of the video cameras. The test personnel can directly observe the water inflow of the air intake system through the water volume video.

[0080] Optionally, the video is a real-time video of manual call measurement, and is recorded at a scheduled non-full-time period to reduce traffic waste. Under data collection conditions, the video connection function is remotely turned on at a scheduled time to observe the water volume recording at different time periods.

[0081] Therefore, in this embodiment, the original rainfall and the original wind speed are determined; the test wind speed is calculated according to the original wind speed and the preset vehicle speed; the test environment is formed based on the original rainfall and the test wind speed; and the water inflow condition of the vehicle's air intake system is obtained, wherein the vehicle is located in the test environment. Through this embodiment, when the vehicle is stationary, the actual situation of the vehicle driving at the preset vehicle speed in the rainy environment corresponding to the original rainfall and the original wind speed is simulated, thereby improving the simulation accuracy and the test effect.

[0082] Furthermore, in one embodiment, after step S14, the following steps are further included:

[0083] Obtain the intake pressure of each cylinder of the vehicle's engine;

[0084] Record the water accumulation value and intake pressure when the engine misfires.

[0085] In this embodiment, while the vehicle is stationary in the test environment, the engine of the vehicle is started to maintain normal air intake of the vehicle, thereby more accurately simulating the actual situation of the vehicle when driving in rainy days. When accumulated water enters the engine cylinder, it will cause engine misfire. At present, most engine misfire alarms are misidentified, not identified in advance, or alarmed after the fire, which may cause irreversible risks such as engine cylinder scuffing. When water enters the intake system, the main factors that determine whether the accumulated water enters the engine cylinder include the water accumulation value and the intake pressure. For example, when water accumulates to a certain extent at the bottom of the intercooler outlet pipe, when accelerating at full throttle, the accumulated water will directly rush into the cylinder and cause the engine to misfire.

[0086] In this embodiment, by recording the water accumulation value and intake pressure when the engine misfires, the relationship between the water accumulation value, intake pressure and engine misfire can be analyzed after the test is completed, so as to facilitate the evaluation of the engine misfire risk when driving in rainy days and output an alarm prompt, thereby preventing engine misfire. Optionally, the engine misfire risk can be divided into three levels: low, medium and high, and the water accumulation value and intake pressure corresponding to each misfire risk level are respectively input to the CAN bus, so that the corresponding alarm prompt is output according to the current water accumulation value and intake pressure during vehicle driving.

[0087] It is specially noted that when analyzing engine misfire, the accumulated water value collected by the water sensor at the bottom of the intercooler outlet pipe is strongly correlated with the engine misfire characteristics, while the accumulated water value collected by the water sensors at the air filter inlet and air filter outlet has relatively little correlation with engine misfire, and serves as an auxiliary judgment.

[0088] In a second aspect, an embodiment of the present invention further provides a vehicle rainy day simulation test device.

[0089] Figure 5 A schematic diagram of the hardware structure of a vehicle rainy day simulation test device in one embodiment of the present invention is shown.

[0090] Reference Figure 5 In one embodiment, the vehicle rainy day simulation test device comprises:

[0091] A determination module 101 is used to determine the original rainfall and the original wind speed;

[0092] A calculation module 102, used for calculating a test wind speed according to an original wind speed and a preset vehicle speed;

[0093] An environment module 103 is used to form a test environment based on the original rainfall and the test wind speed;

[0094] The acquisition module 104 is used to acquire water ingress conditions of an air intake system of a vehicle, wherein the vehicle is located in a test environment.

[0095] Specifically, the determination module 101 is connected to the calculation module 102 and the environment module 103 to transmit the original wind speed information to the calculation module 102 and the original rainfall information to the environment module 103. The calculation module 102 calculates the test wind speed according to the original wind speed and the preset vehicle speed. The calculation module 102 is connected to the environment module 103 to transmit the test wind speed information to the environment module 103. The environment module 103 forms a test environment based on the original rainfall and the test wind speed. The acquisition module 104 is connected to the detection device (for example, the water volume sensor and the video camera in the aforementioned embodiment) provided in the vehicle intake system to obtain the water inflow condition of the intake system. Through this embodiment, when the vehicle is stationary, the actual situation of the vehicle driving at a preset vehicle speed in a rainy environment corresponding to the original rainfall and the original wind speed is simulated, thereby improving the simulation accuracy and the test effect.

[0096] Furthermore, in one embodiment, the determination module 101 is used to:

[0097] Determine rainfall levels and wind speed levels;

[0098] The original rainfall is determined according to the rainfall level, and the original wind speed is determined according to the wind level.

[0099] In this embodiment, the rainfall level and wind force level are both standard levels defined by the meteorological department. The original rainfall and original wind speed determined according to the rainfall level and wind force level can simulate a rainy day environment that is closer to the actual situation, thereby improving the reference significance of the test data.

[0100] Furthermore, in one embodiment, the calculation module 102 is used to:

[0101] The vector of the test wind speed is obtained by subtracting the vector of the preset vehicle speed from the vector of the original wind speed.

[0102] In this embodiment, the calculation formula of the test wind speed is as follows:

[0103]

[0104] is the vector of original wind speed, is the vector of the preset vehicle speed, is the vector of the test wind speed.

[0105] Assuming that the direction of the preset vehicle speed is parallel to the y direction, the component of v3 in the y direction is equal to the component of v1 in the y direction minus v2, and the component of v3 in the x direction is equal to the component of v1 in the x direction.

[0106] Furthermore, in one embodiment, the calculation module 102 is used to:

[0107] If the original wind speed is in the same direction as the preset vehicle speed, the test wind speed is obtained by subtracting the preset vehicle speed from the original wind speed;

[0108] If the original wind speed is in opposite directions to the preset vehicle speed, the original wind speed is added to the preset vehicle speed to obtain the test wind speed.

[0109] In this embodiment, the values ​​taken by the original wind speed and the preset vehicle speed during calculation are the absolute values ​​of the corresponding vectors. When the original wind speed and the preset vehicle speed are in the same direction, the test wind speed is equal to the original wind speed minus the absolute value of the preset vehicle speed. If the original wind speed is greater than the preset vehicle speed, the direction of the test wind speed is the same as the direction of the original wind speed. If the original wind speed is less than the preset vehicle speed, the direction of the test wind speed is opposite to the direction of the original wind speed. When the original wind speed and the preset vehicle speed are in opposite directions, the test wind speed is equal to the original wind speed plus the preset vehicle speed, and the direction of the test wind speed is the same as the direction of the original wind speed.

[0110] Furthermore, in one embodiment, the acquisition module 104 is used to:

[0111] Obtain water accumulation values ​​at preset positions on the vehicle, wherein the vehicle is located in a test environment, and the preset positions include an air filter inlet, an air filter outlet, and a bottom of an intercooler outlet pipe.

[0112] In this embodiment, water volume accumulation values ​​of the vehicle's air intake system during the test are obtained by installing water volume sensors at the air filter inlet, air filter outlet, and the bottom of the intercooler outlet pipe. On the one hand, these locations are convenient for installing and removing water volume sensors, and on the other hand, the water volume at these locations is uniform, which is conducive to the accurate measurement of water volume accumulation values.

[0113] Furthermore, in one embodiment, the vehicle rainy day simulation test device further includes a recording module, which is used to:

[0114] Obtain the intake pressure of each cylinder of the vehicle's engine;

[0115] Record the water accumulation value and intake pressure when the engine misfires.

[0116] In this embodiment, by recording the water accumulation value and intake pressure when the engine misfires, the relationship between the water accumulation value, intake pressure and engine misfire can be analyzed after the test is completed, which is convenient for evaluating the risk of engine misfire when driving in rainy days and outputting alarm prompts, thereby preventing engine misfires.

[0117] Furthermore, in one embodiment, the acquisition module 104 is further configured to:

[0118] Get video footage of water volume at a preset location.

[0119] In this embodiment, the water volume video of the vehicle's air intake system during the test is obtained by installing video cameras at the air filter inlet, air filter outlet, and the bottom of the intercooler outlet pipe. These locations are convenient for the installation and removal of the video cameras. The test personnel can directly observe the water inflow of the air intake system through the water volume video.

[0120] Among them, the functional implementation of each module in the above-mentioned vehicle rainy day simulation test device corresponds to the various steps in the above-mentioned vehicle rainy day simulation test method embodiment, and its functions and implementation processes will not be repeated here one by one.

[0121] In a third aspect, an embodiment of the present invention provides a vehicle rainy day simulation test device, which may be a device with data processing function such as a personal computer (PC), a notebook computer, or a server.

[0122] Figure 6 A schematic diagram of the hardware structure of a vehicle rainy day simulation test device in one embodiment of the present invention is shown.

[0123] Reference Figure 6 In an embodiment of the present invention, the vehicle rainy day simulation test equipment may include a processor 1001 (e.g., a central processing unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components; the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface, a wireless interface (such as a wireless fidelity WIreless-FIdelity, WI-FI interface); the memory 1005 may be a high-speed random access memory (random access memory, RAM), or a stable memory (non-volatile memory), such as a disk storage, and the memory 1005 may optionally be a storage device independent of the aforementioned processor 1001. Those skilled in the art will understand that Figure 6 The hardware structure shown in the figure does not constitute a limitation of the present invention, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0124] Continue to refer to Figure 6 , Figure 6The memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a vehicle rainy day simulation test program. The processor 1001 may call the vehicle rainy day simulation test program stored in the memory 1005 and execute the vehicle rainy day simulation test method provided by the embodiment of the present invention.

[0125] In a fourth aspect, an embodiment of the present invention further provides a readable storage medium.

[0126] The readable storage medium of the present invention stores a vehicle rainy day simulation test program, wherein when the vehicle rainy day simulation test program is executed by a processor, the steps of the vehicle rainy day simulation test method as described above are implemented.

[0127] Among them, the method implemented when the vehicle rainy day simulation test program is executed can refer to the various embodiments of the vehicle rainy day simulation test method of the present invention, and will not be repeated here.

[0128] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0129] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0130] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present invention.

[0131] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A vehicle rainy day simulation test method, characterized in that: The vehicle rainy day simulation test method comprises: Determine the original rainfall and original wind speed; Calculate the test wind speed based on the original wind speed and the preset vehicle speed; forming a test environment based on the original rainfall and the test wind speed; Obtaining water accumulation values ​​at preset positions on the vehicle, wherein the vehicle is located in the test environment, the engine of the vehicle is started, and the preset positions include an air filter inlet, an air filter outlet, and a bottom of an intercooler outlet pipe; Obtaining the intake pressure of each cylinder of the engine of the vehicle; The water accumulation value and the intake pressure when the engine misfires are recorded to analyze the relationship between the water accumulation value, the intake pressure and the engine misfire after the test. When analyzing the engine misfire, the water accumulation value at the bottom of the intercooler outlet pipe is strongly correlated with the engine misfire characteristics, and the water accumulation value at the air filter inlet and the air filter outlet is relatively less correlated with the engine misfire, which serves as an auxiliary judgment.

2. The vehicle rainy day simulation test method according to claim 1, characterized in that: The steps of determining the original rainfall and the original wind speed include: Determine rainfall levels and wind speed levels; The original rainfall is determined according to the rainfall level, and the original wind speed is determined according to the wind force level.

3. The vehicle rainy day simulation test method according to claim 1, characterized in that: The step of calculating the test wind speed according to the original wind speed and the preset vehicle speed comprises: The vector of the test wind speed is obtained by subtracting the vector of the preset vehicle speed from the vector of the original wind speed.

4. The vehicle rainy day simulation test method according to claim 1, characterized in that: The step of calculating the test wind speed according to the original wind speed and the preset vehicle speed comprises: If the original wind speed is in the same direction as the preset vehicle speed, the test wind speed is obtained by subtracting the preset vehicle speed from the original wind speed; If the original wind speed is in opposite directions to the preset vehicle speed, the original wind speed is added to the preset vehicle speed to obtain the test wind speed.

5. The vehicle rainy day simulation test method according to claim 1, characterized in that: After the step of forming the test environment based on the original rainfall and the test wind speed, the method further includes: Obtain a video of the water volume at the preset location.

6. A vehicle rainy day simulation test device, characterized in that: The vehicle rainy day simulation test device comprises: A determination module, used for determining the original rainfall and the original wind speed; A calculation module, used for calculating the test wind speed according to the original wind speed and the preset vehicle speed; An environment module, used for forming a test environment based on the original rainfall and the test wind speed; an acquisition module, configured to acquire a water accumulation value at a preset position on a vehicle, wherein the vehicle is located in the test environment, the engine of the vehicle is started, and the preset position includes an air filter inlet, an air filter outlet, and a bottom of an intercooler outlet pipe; The recording module is used to obtain the intake pressure of each cylinder of the vehicle's engine, and record the water accumulation value and intake pressure when the engine misfires, so as to analyze the relationship between the water accumulation value, intake pressure and engine misfire after the test. Among them, when analyzing the engine misfire, the water accumulation value at the bottom of the intercooler outlet pipe is strongly correlated with the engine misfire characteristics, and the water accumulation value at the air filter inlet and the air filter outlet has a relatively small correlation with the engine misfire, which plays an auxiliary judgment role.

7. A vehicle rainy day simulation test equipment, characterized in that: The vehicle rainy weather simulation test equipment includes a processor, a memory, and a vehicle rainy weather simulation test program stored in the memory and executable by the processor, wherein when the vehicle rainy weather simulation test program is executed by the processor, the steps of the vehicle rainy weather simulation test method as described in any one of claims 1 to 5 are implemented.

8. A readable storage medium, characterized in that: The readable storage medium stores a vehicle rainy weather simulation test program, wherein when the vehicle rainy weather simulation test program is executed by a processor, the steps of the vehicle rainy weather simulation test method according to any one of claims 1 to 5 are implemented.

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