Vehicle emission detection method, device and equipment and storage medium

Abstract

The invention provides a vehicle emission detection method, device and equipment and a storage medium, and relates to the technical field of automobile tests.The vehicle emission detection method comprises the steps that a corresponding test condition matrix is selected according to a corresponding vehicle item type, and a corresponding emission test is conducted on a to-be-detected vehicle based on the selected test condition matrix; the exhaust pollution parameters in the emission testing process are obtained, and whether the current vehicle meets the emission standard or not is rapidly judged according to the obtained exhaust pollution parameters and the preset pollution parameter threshold value. For vehicles of different vehicle item types, different test condition matrixes are adopted to perform corresponding emission tests and obtain corresponding emission test results, so that whether the current vehicle meets the emission standard or not can be directly judged according to the emission test results and standardized preset pollution parameter thresholds. And the test time of the vehicle pollution emission test is greatly reduced, so that the vehicle development period is shortened, and the cost is saved.

Description

Technical Field

[0001] The present application relates to the field of automobile testing technology, and in particular to a vehicle emission detection method, device, equipment and storage medium. Background Art

[0002] In the existing technology, as people pay more and more attention to environmental protection, in the process of automobile product development, it usually takes a long time to conduct emission tests on automobiles to confirm that the emission pollutants of automobiles meet the requirements of environmental protection. The excessively long development cycle cannot meet the current faster and faster iteration speed of the automobile industry, and will lead to an increase in automobile development costs, which is not conducive to the development of automobile companies. Summary of the invention

[0003] The main purpose of this application is to provide a vehicle emission detection method, device, equipment and storage medium, aiming to solve the technical problem of how to speed up the emission pollution testing of automobiles.

[0004] To achieve the above objectives, the present application provides a vehicle emission detection method, the vehicle emission detection method comprising the following steps:

[0005] Get the vehicle project type of the vehicle to be detected;

[0006] Based on the vehicle project type, selecting a corresponding test condition matrix;

[0007] Based on the test condition matrix, controlling the vehicle to perform an emission test and obtaining corresponding exhaust pollution parameters;

[0008] Based on the exhaust pollution parameters and the preset pollution parameter threshold, it is determined whether the vehicle meets the emission standards.

[0009] In one embodiment, before the step of selecting a corresponding test condition matrix based on the vehicle project type, the method further includes:

[0010] The test condition matrix is ​​constructed based on different test condition types, different environmental conditions, different vehicle project types, different exhaust gas treatment methods and different load amounts.

[0011] In one embodiment, the step of constructing a plurality of test condition matrices based on different test condition types, different environmental conditions, different vehicle project types, different exhaust gas treatment methods, and different load amounts includes:

[0012] When the vehicle project type is any one of a new model or a moderately evolved model, constructing the test condition matrix based on each of the test condition types, each of the environmental conditions, each of the exhaust gas treatment methods, and each of the load amounts, the test condition types including WLTC conditions, rotary drive cycle conditions, and actual road conditions;

[0013] Or, when the vehicle project type is a mild evolution type, the test condition matrix is ​​constructed based on each of the test condition types, each of the environmental conditions, each of the exhaust treatment methods and each of the load amounts, and the test condition types include WLTC conditions and rotating hub driving cycle conditions.

[0014] In one embodiment, the step of controlling the vehicle to perform an emission test based on the test condition matrix and obtaining corresponding exhaust pollution parameters includes:

[0015] Based on the test condition matrix, controlling the vehicle to start the test in a cold start mode, and starting to collect exhaust pollutants during the test;

[0016] When the vehicle completes the target travel distance, the vehicle is controlled to stop the test, and the exhaust pollution parameters are obtained based on the collected exhaust pollutants.

[0017] In one embodiment, after the step of controlling the vehicle to start the test in a cold start mode based on the test condition matrix and starting to collect exhaust pollutants during the test, the method further includes:

[0018] When the vehicle is controlled to start the test and the driving speed is stabilized to a preset test speed, the vehicle is driven based on the maximum resistance of the sliding resistance curve until the vehicle completes the target travel.

[0019] In one embodiment, before the step of determining whether the vehicle meets the emission standard based on the exhaust pollution parameter and the preset pollution parameter threshold, the step further includes:

[0020] Based on the test condition matrix, obtaining pollution emission standard factors;

[0021] The preset pollution parameter threshold is obtained based on the pollution emission reference value and the pollution emission standard factor.

[0022] In one embodiment, the step of determining whether the vehicle meets the emission standard based on the exhaust pollution parameter and the preset pollution parameter threshold comprises:

[0023] When the exhaust pollution parameter exceeds the preset pollution parameter threshold, determining that the vehicle does not meet the emission standard;

[0024] Or, when the exhaust pollution parameter does not exceed the preset pollution parameter threshold, it is determined that the vehicle meets the emission standards.

[0025] In addition, to achieve the above-mentioned purpose, the present application also provides a vehicle emission detection device, the vehicle emission detection device comprising:

[0026] A vehicle project type acquisition module is used to acquire the vehicle project type of the vehicle to be detected;

[0027] A test condition selection module, used to select a corresponding test condition matrix based on the vehicle project type;

[0028] An exhaust parameter collection module, used to control the vehicle to perform an emission test based on the test condition matrix and obtain corresponding exhaust pollution parameters;

[0029] The exhaust compliance judgment module is used to judge whether the vehicle complies with the emission standards based on the exhaust pollution parameters and the preset pollution parameter thresholds.

[0030] In addition, to achieve the above-mentioned purpose, the present application also provides a vehicle emission detection device, which includes: a memory, a processor, and a vehicle emission detection program stored on the memory and executable on the processor, and the vehicle emission detection program is configured to implement the steps of the vehicle emission detection method described above.

[0031] In addition, to achieve the above-mentioned purpose, the present application also provides a storage medium, which is a computer-readable storage medium, and a vehicle emission detection program is stored on the computer-readable storage medium. When the vehicle emission detection program is executed by the processor, the steps of the vehicle emission detection method described above are implemented.

[0032] The present application provides a vehicle emission detection method, device, equipment and storage medium, the steps of the vehicle emission detection method include: obtaining the vehicle project type of the vehicle to be detected; based on the vehicle project type, selecting the corresponding test condition matrix; based on the test condition matrix, controlling the vehicle to perform an emission test and obtaining the corresponding exhaust pollution parameters; based on the exhaust pollution parameters and the preset pollution parameter threshold, judging whether the vehicle meets the emission standard. The corresponding test condition matrix is ​​selected by the corresponding vehicle project type, and the corresponding emission test is performed on the vehicle to be detected based on the selected test condition matrix, and the exhaust pollution parameters during the emission test are obtained, and the current vehicle is quickly judged whether it meets the emission standard according to the obtained exhaust pollution parameters and the preset pollution parameter threshold. For vehicles of different vehicle project types, different test condition matrices are used to perform corresponding emission tests and obtain corresponding emission test results, so that it is possible to directly judge whether the current vehicle meets the emission standard through the emission test results and the standardized preset pollution parameter threshold, which greatly reduces the test time of vehicle pollution emission tests, thereby reducing the vehicle development cycle and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0035] Figure 1 A schematic diagram of a process flow provided for the first embodiment of the vehicle emission detection method of the present application;

[0036] Figure 2 A schematic diagram of a process flow provided for the second embodiment of the vehicle emission detection method of the present application;

[0037] Figure 3 A schematic diagram of a process flow provided for the third embodiment of the vehicle emission detection method of the present application;

[0038] Figure 4 This is a schematic diagram of the module structure of a vehicle emission detection device according to an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of the structure of the vehicle emission detection equipment according to an embodiment of the present application.

[0040] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0042] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0043] The main solution of this application is: obtain the vehicle project type of the vehicle to be tested; based on the vehicle project type, select the corresponding test condition matrix; based on the test condition matrix, control the vehicle to perform emission testing and obtain corresponding exhaust pollution parameters; based on the exhaust pollution parameters and preset pollution parameter thresholds, determine whether the vehicle meets the emission standards.

[0044] At present, as people pay more and more attention to environmental protection, in the process of automobile product development, it usually takes a long time to conduct emission tests on automobiles to confirm that the emission pollutants of automobiles meet the needs of environmental protection. Too long a development cycle cannot meet the current faster and faster iteration speed of the automobile industry, and will lead to increased automobile development costs, which is not conducive to the development of automobile companies. Therefore, how to speed up the speed of automobile emission pollution testing is a problem that needs to be solved urgently.

[0045] This application selects the corresponding test condition matrix by the corresponding vehicle project type, performs the corresponding emission test on the vehicle to be tested based on the selected test condition matrix, obtains the exhaust pollution parameters during the emission test, and quickly determines whether the current vehicle meets the emission standards based on the obtained exhaust pollution parameters and the preset pollution parameter threshold. For vehicles of different vehicle project types, different test condition matrices are used to perform corresponding emission tests and obtain corresponding emission test results, so that it is possible to directly determine whether the current vehicle meets the emission standards through the emission test results and the standardized preset pollution parameter threshold, which greatly reduces the test time of vehicle pollution emission tests, thereby reducing the vehicle development cycle and saving costs.

[0046] It should be noted that the execution subject of this embodiment may be a vehicle emission detection device, or a vehicle emission detection device with data processing, network communication and program running functions, etc., and this embodiment does not specifically limit this. The following takes the vehicle emission detection device as the execution subject as an example to illustrate this embodiment and the following embodiments.

[0047] Based on this, the present application proposes a vehicle emission detection method of the first embodiment, please refer to Figure 1 , the vehicle emission detection method comprises steps S10-S40:

[0048] Step S10, obtaining the vehicle item type of the vehicle to be detected;

[0049] It should be understood that in the process of automobile product development, vehicle engineering projects that use most of the same core components or similar automobile design structures are usually grouped into the same project, and each project is marked with its corresponding project number for easy distinction. The vehicle project type refers to the corresponding automobile type within the same project.

[0050] It should be noted that, in this embodiment, the vehicle project types include at least new models, slightly evolved models, and medium evolved models. Among them, new models can be understood as vehicles corresponding to newly designed models, slightly evolved vehicles can be understood as vehicles corresponding to slightly modified models based on a certain model (such as sister vehicles), and medium evolved vehicles can be understood as vehicles corresponding to moderately modified models based on a certain model (such as vehicles with important parts such as replacement of gearboxes).

[0051] In this embodiment, the vehicle project type corresponding to the current vehicle to be detected can be obtained by collecting the project number transmitted externally.

[0052] Step S20, selecting a corresponding test condition matrix based on the vehicle project type;

[0053] It is easy to understand that the test condition matrix refers to a matrix composed of test conditions of multiple aspects corresponding to the vehicle project type during the emission test. In this embodiment, different vehicle project types have different test condition matrices, so the test condition matrix corresponding to the current vehicle can be obtained according to the currently obtained vehicle project type.

[0054] Step S30, based on the test condition matrix, controlling the vehicle to perform an emission test and obtaining corresponding exhaust pollution parameters;

[0055] It is easy to understand that the emission pollution parameter refers to the quantitative parameter of the corresponding pollutants in the exhaust gas discharged by the automobile. In this embodiment, according to the obtained test condition matrix, the vehicle can be controlled to perform the corresponding emission test, that is, the vehicle is controlled to drive or simulate the driving state and exhaust gas is discharged in the above process. At the same time, the exhaust pollution parameter corresponding to the corresponding exhaust gas can also be obtained.

[0056] Step S40: judging whether the vehicle complies with the emission standard based on the exhaust pollution parameter and the preset pollution parameter threshold.

[0057] It should be noted that the preset pollution parameter threshold refers to the quantitative parameter used to represent the compliance threshold of pollutant emissions in the emission test corresponding to each test condition matrix. By comparing the exhaust pollution parameters obtained in the actual emission test with the preset pollution parameter threshold, it is possible to directly determine whether the current vehicle meets the emission standards. By obtaining the exhaust pollution parameters corresponding to the test condition matrix and comparing them with the preset pollution parameter threshold for quantitative judgment, it is possible to quickly determine whether the current vehicle emission pollution is compliant, which can effectively speed up the emission pollution test of the vehicle, help shorten the vehicle development cycle, and reduce vehicle development costs.

[0058] The present application provides a vehicle emission detection method, the steps of which include: obtaining the vehicle project type of the vehicle to be detected; based on the vehicle project type, selecting a corresponding test condition matrix; based on the test condition matrix, controlling the vehicle to perform an emission test and obtaining corresponding exhaust pollution parameters; based on the exhaust pollution parameters and a preset pollution parameter threshold, judging whether the vehicle meets the emission standard. The corresponding test condition matrix is ​​selected by the corresponding vehicle project type, and the corresponding emission test is performed on the vehicle to be detected based on the selected test condition matrix, and the exhaust pollution parameters during the emission test are obtained, and whether the current vehicle meets the emission standard is quickly judged based on the obtained exhaust pollution parameters and the preset pollution parameter threshold. For vehicles of different vehicle project types, different test condition matrices are used to perform corresponding emission tests and obtain corresponding emission test results, so that it is possible to directly judge whether the current vehicle meets the emission standard through the emission test results and the standardized preset pollution parameter threshold, which greatly reduces the test time of vehicle pollution emission tests, thereby reducing the vehicle development cycle and saving costs.

[0059] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can refer to the above introduction, and will not be repeated later. Figure 2 , before the step of selecting the corresponding test condition matrix based on the vehicle project type, it also includes:

[0060] Step S201, constructing the test condition matrix based on different test condition types, different environmental conditions, different vehicle project types, different exhaust gas treatment methods and different load amounts.

[0061] It should be noted that in this embodiment, a mapping relationship can be established through a variety of test condition types, a variety of vehicle project types, a variety of exhaust treatment methods, a variety of environmental conditions and a variety of load amounts, and divided in a matrix format to construct a test condition matrix.

[0062] Further, in this embodiment, the step of constructing a plurality of test condition matrices based on different test condition types, different environmental conditions, different vehicle project types, different exhaust gas treatment methods and different load amounts includes:

[0063] Step S2011, when the vehicle project type is any one of a new model type and a moderately evolved type, constructing the test condition matrix based on each of the test condition types, each of the environmental conditions, each of the exhaust gas treatment methods, and each of the load amounts, the test condition types including WLTC conditions, rotary drive cycle conditions, and actual road conditions;

[0064] Step S2012, or, when the vehicle project type is a mild evolution type, construct the test condition matrix based on each of the test condition types, each of the environmental conditions, each of the exhaust treatment methods and each of the load amounts, and the test condition types include WLTC conditions and rotating hub driving cycle conditions.

[0065] It should be understood that, in this embodiment, the WLTC condition refers to the world light vehicle test cycle condition, which is mainly used to evaluate the fuel consumption of a vehicle under different road conditions. Its test cycle is 1800s, covering a wide range of driving speeds. The overall test average speed is about 46km / h, which more comprehensively simulates the driving state of the vehicle in different time periods and different road conditions, and the test results are more realistic; the rotating hub driving cycle condition refers to the test condition that simulates the vehicle driving on an actual road through the rotating hub. The same test condition can be repeated many times, and the test results are stable and reliable; the actual road condition refers to the test under the condition of driving on a real road.

[0066] It should be noted that the environmental conditions include several temperature ranges and several altitude ranges, among which the temperature ranges include normal temperature range, low temperature range, high temperature range and variable temperature range, and the altitude ranges include low altitude range, medium altitude range and high altitude range; the exhaust gas treatment methods include treatment with an aged catalyst, treatment with a fresh catalyst or a combination of either of the two and treatment with a particulate filter; the load refers to the force or pressure exerted by the vehicle on the ground, bridges, tunnels and other structures when it is stationary or moving, and includes at least a standard load and 90% of the maximum load.

[0067] It is easy to understand that in this embodiment, if the vehicle project type is a new model or a moderately evolved type, there is no reference for the emission performance of the vehicle, and it is impossible to evaluate it directly or at intervals. It is necessary to sequentially pass the WLTC condition, the rotary driving cycle condition, and the actual road condition, combined with various environmental conditions, various exhaust treatment methods, and various loads, to construct a test condition matrix, such as shown in Table 1:

[0068] Table 1 (above): Test condition matrix for new or moderately evolved vehicles

[0069]

[0070] Table 1 (below): Test condition matrix for new or moderately evolved vehicles

[0071]

[0072] It should be noted that, as shown in Example Table 1, the test condition types can be mainly divided into WLTC conditions, rotating hub driving cycle conditions and actual road conditions; the temperature of the environmental condition can be a specific number (calibrable), corresponding to the special cases in the normal temperature range, low temperature range, high temperature range and variable temperature range mentioned above, for example, "23℃" can be considered to be in the normal temperature range, "-7℃" can be considered to be in the low temperature range, "35℃" can be considered to be in the high temperature range, and "0-30℃" can be considered to be in the variable temperature range; the altitude of the environmental condition can also be a specific number or numerical range (calibrable), for example, "<700m" can be considered to be in the low altitude range, " "1300m" can be considered as a special value in the medium altitude range, and "2400m" can be considered as a special value in the high altitude range; the exhaust treatment method can be any one of "aged catalyst" and "fresh catalyst", or a combination of any one of the two and "particulate trap <3000km", where "particulate trap <3000km" can be understood as the state of the particulate trap when the vehicle mileage does not reach 3000 kilometers or the state of possible blockage and other faults; the "standard" in the load column can be understood as the standard load mentioned above, and "90% Max" can be understood as 90% of the maximum load mentioned above.

[0073] If the vehicle project type is a mild evolution type, the emission performance of the vehicle can be mostly evaluated based on the reference of vehicles of the same project type. It is only necessary to sequentially pass some WLTC conditions and rotary drive cycle conditions, combined with some environmental conditions, some exhaust treatment methods and various loads to construct a test condition matrix, such as shown in Table 2:

[0074] Table 2: Test condition matrix corresponding to mildly evolved vehicles

[0075]

[0076] It can be clearly seen from the test condition matrix constructed for the mildly evolved type of vehicle in Table 2 and the test condition matrix constructed for the new type or moderately evolved type of vehicle in Table 1 that the constructed test condition matrix can simply and clearly set the emission test steps to be performed, reduce the number of invalid tests, and shorten the cycle of vehicle emission testing. And for mildly evolved type vehicles, more emission test steps can be reduced, thereby further shortening the vehicle development cycle.

[0077] It is worth noting that, in this embodiment, both environmental conditions and load amounts can be quantified, and corresponding calibration can be performed for different vehicle project types.

[0078] In addition, the fuel used by the vehicle may also have a certain impact on the emission test results. The vehicle's emission test can give priority to the use of low-evaporation fuel. If it is in a high-altitude range, it can be replaced with 95 standard gasoline.

[0079] Further, in this embodiment, the step of controlling the vehicle to perform an emission test based on the test condition matrix and obtaining corresponding exhaust pollution parameters includes:

[0080] Step S31, based on the test condition matrix, controlling the vehicle to start the test in a cold start mode, and starting to collect exhaust pollutants during the test;

[0081] It should be noted that the cold start mode refers to starting the car when the water temperature of the car engine is low, which is mainly used to simulate the scene of actually starting the wheels. In this embodiment, the wheels can be controlled to start the emission test based on the corresponding test condition matrix, and the vehicle is started and the emission test is started in the cold start mode before each round of testing corresponding to the test condition matrix to ensure that the test results are closer to the actual wheel start scene. In addition, after starting the emission test, the exhaust pollutants emitted by the wheels during the test can also be collected.

[0082] Step S33, when the vehicle completes the target travel, the vehicle is controlled to stop the test, and the exhaust pollution parameters are obtained based on the collected exhaust pollutants.

[0083] It should be noted that the target travel refers to the driving test of the vehicle set in the corresponding test condition matrix. In this embodiment, when the wheel completes the target travel, it can be considered that the current emission test can be ended. At this time, the vehicle is controlled to stop the emission test, and based on the exhaust pollutants collected during the entire emission test, the corresponding exhaust pollution parameters representing the pollution degree are obtained.

[0084] Further, in this embodiment, after the step of controlling the vehicle to start the test in a cold start mode based on the test condition matrix and starting to collect exhaust pollutants during the test, the method further includes:

[0085] Step S32, when the vehicle is controlled to start the test and the driving speed is stabilized to a preset test speed, the vehicle is driven based on the maximum resistance of the sliding resistance curve until the vehicle completes the target travel.

[0086] It should be noted that the preset test speed refers to the vehicle driving speed specified in the emission test, and the preset test speed may vary at different stages of the emission test. In this embodiment, when the wheel is controlled to start the emission test and the vehicle's driving speed is stabilized to the corresponding preset test speed, the vehicle may be driven based on the maximum resistance point corresponding to the sliding resistance curve of the vehicle, so that the wheel's emission pollutants are as close to the upper limit as possible, so that as many exhaust pollutants as possible emitted by the wheel under extreme conditions can be collected during the emission test, so as to facilitate the subsequent judgment of the test results until the emission test is completed.

[0087] Based on the first embodiment and / or the second embodiment of the present application, in the third embodiment of the present application, the same or similar contents as those of the above-mentioned first and second embodiments can refer to the above introduction, and will not be repeated later. Figure 3 , before the step of judging whether the vehicle meets the emission standard based on the exhaust pollution parameter and the preset pollution parameter threshold, it also includes:

[0088] Step S401, obtaining a pollution emission standard factor based on the test condition matrix;

[0089] Step S402: acquiring the preset pollution parameter threshold based on the pollution emission reference value and the pollution emission standard factor.

[0090] It should be noted that the reference value of pollution emission refers to the reference value defined by the current emission standard for vehicle emission pollutants, which can be specifically the national 6b emission limit, that is, carbon monoxide CO = 500 (mg / km), nitrogen oxides NOx = 35 (mg / km), particulate matter PN = 6 (1*10 11 The pollution emission standard factor refers to the ratio between the actual value of theoretically emitted pollutants and the reference value of pollution emissions under various test conditions.

[0091] In this embodiment, the pollution emission standard factor corresponding to each round of emission tests can be obtained based on the current corresponding test condition matrix, and the preset pollution parameter threshold corresponding to the current test condition matrix for judging whether the current vehicle meets each round of emission tests can be obtained by multiplying the pollution emission standard factor with the pollution emission reference value.

[0092] As a preferred example, the relationship between the test conditions, pollution emission reference values, pollution emission standard factors and preset pollution parameter thresholds corresponding to the test condition matrix is ​​shown in Table 3 (Table 3 is only a preferred solution provided in this embodiment, and the data therein is not used to limit the specific values ​​of the above parameters):

[0093] Table 3: Emission standard correspondence table

[0094]

[0095] Among them, a, b, and c are the pollution emission standard factors corresponding to the pollutants CO, NOx, and PN respectively, "500", "35", and "6" are the pollution emission reference values ​​corresponding to the pollutants CO and NOx respectively, and the corresponding preset pollution parameter thresholds are the corresponding values ​​marked before each pollution emission standard factor. For example, under the test conditions of "WLTC conditions, fresh catalyst", the preset pollution parameter threshold of the pollutant CO = 500 (pollution emission reference value corresponding to CO) * 0.46 (pollution emission standard factor corresponding to CO) = 230 mg / km.

[0096] Furthermore, in this embodiment, the step of judging whether the vehicle meets the emission standard based on the exhaust pollution parameter and the preset pollution parameter threshold comprises:

[0097] Step S41, when the exhaust pollution parameter exceeds the preset pollution parameter threshold, determining that the vehicle does not meet the emission standard;

[0098] Step S42, or, when the exhaust pollution parameter does not exceed the preset pollution parameter threshold, it is determined that the vehicle meets the emission standard.

[0099] It is easy to understand that when the exhaust pollution parameters corresponding to the pollutants from the mobile phone during the test exceed the preset pollution parameter thresholds, it can be considered that the current vehicle emissions of pollutants exceed the standard and do not meet the emission standards; conversely, when the exhaust pollution parameters corresponding to the pollutants from the mobile phone during the test do not exceed the preset pollution parameter thresholds, it can be considered that the current vehicle emissions of pollutants do not exceed the standard and meet the emission standards.

[0100] The present application also provides a vehicle emission detection device, please refer to Figure 4 , the vehicle emission detection device comprises:

[0101] The vehicle project type acquisition module 10 is used to acquire the vehicle project type of the vehicle to be detected;

[0102] A test condition selection module 20, for selecting a corresponding test condition matrix based on the vehicle project type;

[0103] An exhaust parameter collection module 30, for controlling the vehicle to perform an emission test based on the test condition matrix and obtaining corresponding exhaust pollution parameters;

[0104] The exhaust compliance judgment module 40 is used to judge whether the vehicle complies with the emission standards based on the exhaust pollution parameters and the preset pollution parameter thresholds.

[0105] The vehicle emission detection device provided in the embodiment of the present application adopts the vehicle emission detection method in the above embodiment, which can solve the technical problem of how to speed up the emission pollution test of the automobile. Compared with the prior art, the beneficial effects of the vehicle emission detection device provided in the embodiment of the present application are the same as the beneficial effects of the vehicle emission detection method provided in the above embodiment, and the other technical features in the vehicle emission detection device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0106] The present application provides a vehicle emission detection device, which includes: at least one processor; and a memory that is communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the vehicle emission detection method in the above-mentioned embodiment one.

[0107] Reference below Figure 5 , which shows a schematic diagram of the structure of a vehicle emission detection device suitable for implementing the embodiment of the present application. The vehicle emission detection device in the embodiment of the present application may include but is not limited to a fixed terminal such as a vehicle-mounted terminal. Figure 5 The vehicle emission detection device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0108] like Figure 5As shown, the vehicle emission detection device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the vehicle emission detection device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the vehicle emission detection device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a vehicle emission detection device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0109] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0110] The vehicle emission detection device provided by the present application adopts the vehicle emission detection method in the above embodiment, which can solve the technical problem of how to speed up the emission pollution test of the automobile. Compared with the prior art, the beneficial effects of the vehicle emission detection device provided by the present application are the same as the beneficial effects of the vehicle emission detection method provided by the above embodiment, and the other technical features in the vehicle emission detection device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0111] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0112] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0113] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the vehicle emission detection method in the above-mentioned embodiment.

[0114] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0115] The computer-readable storage medium may be included in the vehicle emission detection device; or may exist independently without being assembled into the vehicle emission detection device.

[0116] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the vehicle emission detection equipment, the vehicle emission detection equipment: obtains the vehicle project type of the vehicle to be detected; based on the vehicle project type, selects the corresponding test condition matrix; based on the test condition matrix, controls the vehicle to perform emission testing and obtains corresponding exhaust pollution parameters; based on the exhaust pollution parameters and preset pollution parameter thresholds, determines whether the vehicle meets the emission standards.

[0117] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0118] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0119] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0120] The readable storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned vehicle emission detection method, and can solve the technical problem of how to speed up the emission pollution test of automobiles. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the present application are the same as the beneficial effects of the vehicle emission detection method provided in the above-mentioned embodiment, and will not be repeated here.

[0121] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. A vehicle emission detection method, characterized in that: The vehicle emission detection method comprises the following steps: Get the vehicle project type of the vehicle to be detected; Based on the vehicle project type, selecting a corresponding test condition matrix; Based on the test condition matrix, controlling the vehicle to perform an emission test and obtaining corresponding exhaust pollution parameters; Based on the exhaust pollution parameters and the preset pollution parameter threshold, it is determined whether the vehicle meets the emission standards.

2. The vehicle emission detection method according to claim 1, characterized in that: Before the step of selecting a corresponding test condition matrix based on the vehicle project type, the method further includes: The test condition matrix is ​​constructed based on different test condition types, different environmental conditions, different vehicle project types, different exhaust gas treatment methods and different load amounts.

3. The vehicle emission detection method according to claim 2, characterized in that: The step of constructing a plurality of test condition matrices based on different test condition types, different environmental conditions, different vehicle project types, different exhaust gas treatment methods and different load amounts includes: When the vehicle project type is any one of a new model or a moderately evolved model, constructing the test condition matrix based on each of the test condition types, each of the environmental conditions, each of the exhaust gas treatment methods, and each of the load amounts, the test condition types including WLTC conditions, rotary drive cycle conditions, and actual road conditions; Or, when the vehicle project type is a mild evolution type, the test condition matrix is ​​constructed based on each of the test condition types, each of the environmental conditions, each of the exhaust treatment methods and each of the load amounts, and the test condition types include WLTC conditions and rotating hub driving cycle conditions.

4. The vehicle emission detection method according to claim 1, characterized in that: The step of controlling the vehicle to perform an emission test based on the test condition matrix and obtaining corresponding exhaust pollution parameters includes: Based on the test condition matrix, controlling the vehicle to start the test in a cold start mode, and starting to collect exhaust pollutants during the test; When the vehicle completes the target travel distance, the vehicle is controlled to stop the test, and the exhaust pollution parameters are obtained based on the collected exhaust pollutants.

5. The vehicle emission detection method according to claim 4, characterized in that: After the step of controlling the vehicle to start the test in a cold start mode based on the test condition matrix and starting to collect exhaust pollutants during the test, the method further includes: When the vehicle is controlled to start the test and the driving speed is stabilized to a preset test speed, the vehicle is driven based on the maximum resistance of the sliding resistance curve until the vehicle completes the target travel.

6. The vehicle emission detection method according to claim 1, characterized in that: Before the step of judging whether the vehicle meets the emission standard based on the exhaust pollution parameter and the preset pollution parameter threshold, the method further includes: Based on the test condition matrix, obtaining pollution emission standard factors; The preset pollution parameter threshold is obtained based on the pollution emission reference value and the pollution emission standard factor.

7. The vehicle emission detection method according to claim 1, characterized in that: The step of judging whether the vehicle meets the emission standard based on the exhaust pollution parameter and the preset pollution parameter threshold comprises: When the exhaust pollution parameter exceeds the preset pollution parameter threshold, determining that the vehicle does not meet the emission standard; Or, when the exhaust pollution parameter does not exceed the preset pollution parameter threshold, it is determined that the vehicle meets the emission standards.

8. A vehicle emission detection device, characterized in that: The vehicle emission detection device comprises: The vehicle emission detection method comprises: A vehicle project type acquisition module is used to acquire the vehicle project type of the vehicle to be detected; A test condition selection module, used to select a corresponding test condition matrix based on the vehicle project type; An exhaust parameter collection module, used to control the vehicle to perform an emission test based on the test condition matrix and obtain corresponding exhaust pollution parameters; The exhaust compliance judgment module is used to judge whether the vehicle complies with the emission standards based on the exhaust pollution parameters and the preset pollution parameter thresholds.

9. A vehicle emission detection device, characterized in that: The vehicle emission detection device comprises: a memory, a processor, and a vehicle emission detection program stored in the memory and executable on the processor, wherein the vehicle emission detection program is configured to implement the steps of the vehicle emission detection method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, on which a vehicle emission detection program is stored. When the vehicle emission detection program is executed by a processor, the steps of the vehicle emission detection method according to any one of claims 1 to 7 are implemented.

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