Tail gas after-treatment scheme verification method, device and equipment and readable storage medium

Abstract

The invention discloses a tail gas after-treatment scheme verification method, device and equipment and a readable storage medium. The method comprises the steps that a first linear function corresponding to a tail gas aftertreatment standard scheme is determined, the independent variable of the first linear function is vehicle mileage, and the dependent variable of the first linear function is a tail gas emission value; a second linear function corresponding to the tail gas aftertreatment standard scheme and a third linear function corresponding to the tail gas aftertreatment to-be-verified scheme are determined, independent variables of the second linear function and the third linear function are aging test duration, and dependent variables of the second linear function and the third linear function are tail gas emission values; a fourth linear function is determined based on the first linear function, the second linear function and the third linear function, the independent variable of the fourth linear function is the vehicle mileage, and the dependent variable of the fourth linear function is the exhaust emission value; and obtaining a verification result of the to-be-verified tail gas aftertreatment scheme based on the fourth linear function. According to the invention, verification of the to-be-verified tail gas after-treatment scheme is realized.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust gas post-treatment, and in particular to an exhaust gas post-treatment scheme verification method, device, equipment and computer-readable storage medium. Background Art

[0002] Based on cost and product competitiveness considerations, some OEMs have proposed technical optimization of existing exhaust gas after-treatment solutions, thereby obtaining exhaust gas after-treatment optimization solutions. The technical optimization referred to here is to reduce the total amount of precious metals in the DOC (Diesel Oxidation Catalyst) catalyst and the volume of the SCR (Selective Catalytic Reduction) system in the exhaust gas after-treatment solution.

[0003] Although the exhaust gas after-treatment optimization scheme reduces costs, it will directly affect the exhaust gas emission value and reduce the reliability of the after-treatment. In order to verify whether the exhaust gas after-treatment optimization scheme meets the kilometer life period required by the vehicle emission regulations, it is necessary to determine the exhaust gas emission value corresponding to the exhaust gas after-treatment optimization scheme at the kilometers required by the regulations. However, the conventional hydrothermal aging test scheme can only determine the corresponding relationship between the exhaust gas emission value and the hydrothermal aging time. Therefore, a scheme for compliance verification of the exhaust gas after-treatment optimization scheme is urgently needed. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides an exhaust gas after-treatment scheme verification method, device, equipment and computer-readable storage medium.

[0005] In a first aspect, an embodiment of the present application provides a method for verifying an exhaust gas post-treatment scheme, the exhaust gas post-treatment scheme verification method comprising:

[0006] Determine a first linear function corresponding to the exhaust gas aftertreatment standard solution, wherein the independent variable of the first linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value;

[0007] Determine a second linear function corresponding to the exhaust gas aftertreatment standard solution and a third linear function corresponding to the exhaust gas aftertreatment to be verified solution, wherein the independent variables of the second linear function and the third linear function are the aging test duration and the dependent variables are the exhaust gas emission values;

[0008] Determine a fourth linear function based on the first linear function, the second linear function and the third linear function, wherein the independent variable of the fourth linear function is the vehicle mileage and the dependent variable is the exhaust emission value;

[0009] The verification result of the exhaust gas aftertreatment scheme to be verified is obtained based on the fourth linear function.

[0010] In combination with the first aspect, in one implementation, the first linear function corresponding to the exhaust gas aftertreatment standard solution is determined to include:

[0011] Obtaining actual exhaust emission values ​​corresponding to a vehicle equipped with the exhaust aftertreatment standard solution at multiple actual vehicle mileages;

[0012] A linear fitting is performed based on the actual exhaust emission values ​​corresponding to the multiple actual vehicle mileages to obtain a first linear function.

[0013] In combination with the first aspect, in one implementation, the second linear function corresponding to the exhaust gas post-treatment standard solution and the third linear function corresponding to the exhaust gas post-treatment solution to be verified are determined to include:

[0014] The catalyst of the exhaust gas after-treatment standard solution and the catalyst of the exhaust gas after-treatment to be verified solution are subjected to several aging tests under the same hydrothermal aging conditions, wherein each aging test corresponds to a different aging test duration;

[0015] Based on several aging tests, the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme and the exhaust emission test values ​​corresponding to the exhaust aftertreatment scheme to be verified under each aging test duration are obtained;

[0016] A second linear function is obtained by performing a linear fitting based on the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme at each aging test duration;

[0017] A third linear function is obtained by performing linear fitting based on the exhaust emission test values ​​corresponding to the exhaust after-treatment scheme to be verified at each aging test duration.

[0018] In combination with the first aspect, in one implementation, determining the fourth linear function based on the first linear function, the second linear function, and the third linear function includes:

[0019] calculating a ratio of a third slope of the third linear function to a second slope of the second linear function;

[0020] The product of the first slope of the first linear function and the ratio is used as the fourth slope of the fourth linear function, and the initial value of exhaust gas emission corresponding to the exhaust gas after-treatment scheme to be verified is used as the fourth intercept of the fourth linear function.

[0021] In combination with the first aspect, in one implementation, obtaining a verification result of the exhaust gas post-treatment scheme to be verified based on the fourth linear function includes:

[0022] Substituting the preset vehicle mileage value into the fourth linear function to obtain the exhaust emission value to be verified;

[0023] If the exhaust gas emission value to be verified is greater than the emission limit, the verification result of the exhaust gas aftertreatment solution to be verified is determined to be unqualified;

[0024] If the exhaust gas emission value to be verified is not greater than the emission limit, the verification result of the exhaust gas aftertreatment scheme to be verified is determined to be qualified.

[0025] In a second aspect, an embodiment of the present application provides an exhaust gas post-treatment scheme verification device, the exhaust gas post-treatment scheme verification device comprising:

[0026] A first fitting module is used to determine a first linear function corresponding to the exhaust gas post-treatment standard solution, wherein the independent variable of the first linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value;

[0027] A second fitting module is used to determine a second linear function corresponding to the exhaust gas post-treatment standard solution and a third linear function corresponding to the exhaust gas post-treatment to be verified solution, wherein the independent variables of the second linear function and the third linear function are the aging test duration and the dependent variable is the exhaust gas emission value;

[0028] A construction module is used to determine a fourth linear function based on the first linear function, the second linear function and the third linear function, wherein the independent variable of the fourth linear function is the vehicle mileage and the dependent variable is the exhaust emission value;

[0029] A verification module is used to obtain a verification result of the exhaust gas aftertreatment scheme to be verified based on a fourth linear function.

[0030] In conjunction with the second aspect, in one implementation, the second fitting module is used to:

[0031] The catalyst of the exhaust gas after-treatment standard solution and the catalyst of the exhaust gas after-treatment to be verified solution are subjected to several aging tests under the same hydrothermal aging conditions, wherein each aging test corresponds to a different aging test duration;

[0032] Based on several aging tests, the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme and the exhaust emission test values ​​corresponding to the exhaust aftertreatment scheme to be verified under each aging test duration are obtained;

[0033] A second linear function is obtained by performing a linear fitting based on the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme at each aging test duration;

[0034] A third linear function is obtained by performing linear fitting based on the exhaust emission test values ​​corresponding to the exhaust after-treatment scheme to be verified at each aging test duration.

[0035] In conjunction with the second aspect, in one implementation, a building module is used to:

[0036] calculating a ratio of a third slope of the third linear function to a second slope of the second linear function;

[0037] The product of the first slope of the first linear function and the ratio is used as the fourth slope of the fourth linear function, and the initial value of exhaust gas emission corresponding to the exhaust gas after-treatment scheme to be verified is used as the fourth intercept of the fourth linear function.

[0038] In the third aspect, an embodiment of the present application provides an exhaust gas after-treatment scheme verification device, which includes a processor, a memory, and an exhaust gas after-treatment scheme verification program stored on the memory and executable by the processor, wherein when the exhaust gas after-treatment scheme verification program is executed by the processor, the steps of the exhaust gas after-treatment scheme verification method described in the first aspect are implemented.

[0039] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which an exhaust gas after-treatment scheme verification program is stored, wherein when the exhaust gas after-treatment scheme verification program is executed by a processor, the steps of the exhaust gas after-treatment scheme verification method described in the first aspect are implemented.

[0040] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0041] In the embodiment of the present application, the first linear function corresponding to the exhaust gas after-treatment standard scheme is determined, wherein the independent variable of the first linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value; the second linear function corresponding to the exhaust gas after-treatment standard scheme and the third linear function corresponding to the exhaust gas after-treatment scheme to be verified are determined, wherein the independent variables of the second linear function and the third linear function are the aging test duration and the dependent variable is the exhaust gas emission value; the fourth linear function is determined based on the first linear function, the second linear function and the third linear function, wherein the independent variable of the fourth linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value; the verification result of the exhaust gas after-treatment scheme to be verified is obtained based on the fourth linear function. Through the embodiment of the present application, based on the functional relationship between the vehicle mileage and the exhaust gas emission value corresponding to the standard scheme, combined with the functional relationship between the aging test duration and the exhaust gas emission value corresponding to the standard scheme and the scheme to be verified, the functional relationship between the vehicle mileage and the exhaust gas emission value corresponding to the scheme to be verified is constructed, thereby realizing the verification of the exhaust gas after-treatment scheme to be verified. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a flow chart of an embodiment of a method for verifying an exhaust gas post-treatment solution of the present application;

[0043] Figure 2 for Figure 1 A detailed flow chart of step S10;

[0044] Figure 3 for Figure 1 Detailed flow chart of step S20;

[0045] Figure 4 for Figure 1 Detailed flow chart of step S30;

[0046] Figure 5 for Figure 1 A detailed flow chart of step S40;

[0047] Figure 6 This is a functional module diagram of an embodiment of an exhaust gas post-treatment scheme verification device of the present application;

[0048] Figure 7 This is a schematic diagram of the hardware structure of the exhaust gas post-treatment scheme verification device involved in the embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0051] In a first aspect, an embodiment of the present application provides a method for verifying an exhaust gas aftertreatment scheme.

[0052] In one embodiment, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the exhaust gas post-treatment scheme verification method of this application. Figure 1 As shown in the figure, the verification method of the exhaust gas aftertreatment solution includes:

[0053] Step S10, determining a first linear function corresponding to the exhaust gas post-treatment standard solution, wherein the independent variable of the first linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value;

[0054] In this embodiment, the exhaust gas post-treatment standard solution is an exhaust gas post-treatment solution that has been used on actual vehicles. By monitoring the exhaust gas emission values ​​of vehicles equipped with the exhaust gas post-treatment standard solution, the exhaust gas emission values ​​of vehicles equipped with the exhaust gas post-treatment standard solution at different vehicle mileages can be obtained. Based on these data, a linear function fitting can be performed to obtain a first linear function with the independent variable being the vehicle mileage and the dependent variable being the exhaust gas emission value.

[0055] Further, in one embodiment, referring to Figure 2 , Figure 2 for Figure 1 Detailed flow chart of step S10 in FIG. Figure 1 As shown, step S10 includes:

[0056] Step S101, obtaining actual exhaust emission values ​​corresponding to a vehicle equipped with the exhaust after-treatment standard solution at multiple actual vehicle mileages;

[0057] In this embodiment, in order to ensure the accuracy of the first linear function, a plurality of vehicles equipped with the exhaust gas aftertreatment standard solution are selected, for example, 1000. It should be noted that this is only a schematic illustration, and the number of selected vehicles is set according to actual needs.

[0058] For these 1,000 vehicles, the exhaust emission values ​​during their operation are collected to obtain the actual exhaust emission values ​​corresponding to different actual vehicle mileages. It should be noted that if the same actual vehicle mileage corresponds to multiple actual exhaust emission values, the average value of the multiple actual exhaust emission values ​​is calculated, and the calculated average value is used as the actual exhaust emission value corresponding to the actual vehicle mileage.

[0059] Step S102 , performing linear fitting based on the actual exhaust emission values ​​corresponding to the multiple actual vehicle mileages to obtain a first linear function.

[0060] In this embodiment, assuming that 10,000 sets of data are obtained based on the processing of step S101, and each set of data consists of actual vehicle mileage and corresponding actual exhaust emission values, 10,000 fitting points can be constructed based on these 10,000 sets of data in a coordinate system where the horizontal axis is the vehicle mileage and the vertical axis is the exhaust emission value, and then linear fitting is performed based on these 10,000 fitting points to obtain a first linear function. For the convenience of subsequent description, the first linear function is recorded as y=a1x+b1, where y is the exhaust emission value and x is the vehicle mileage.

[0061] Step S20, determining a second linear function corresponding to the exhaust gas post-treatment standard solution and a third linear function corresponding to the exhaust gas post-treatment to be verified solution, wherein the independent variables of the second linear function and the third linear function are the aging test duration and the dependent variables are the exhaust gas emission values;

[0062] In this embodiment, a second linear function corresponding to the exhaust gas after-treatment standard solution and a third linear function corresponding to the exhaust gas after-treatment solution to be verified are determined based on the aging test.

[0063] Among them, the aging test specifically includes:

[0064] The catalyst of the exhaust gas after-treatment standard scheme and the catalyst of the exhaust gas after-treatment scheme to be verified are placed in the same hydrothermal aging conditions for a preset aging test time; then they are taken out and packaged into the engine exhaust system respectively; the engine is controlled to operate according to the preset operating conditions, and the exhaust emission values ​​are monitored.

[0065] Each time an aging test is performed, a set of aging test durations and exhaust emission values ​​corresponding to the exhaust gas aftertreatment standard scheme and a set of aging test durations and exhaust emission values ​​corresponding to the exhaust gas aftertreatment to be verified scheme can be obtained. Performing several aging tests can obtain several sets of aging test durations and exhaust emission values ​​corresponding to the exhaust gas aftertreatment standard scheme and several sets of aging test durations and exhaust emission values ​​corresponding to the exhaust gas aftertreatment to be verified scheme, thereby fitting the second linear function and the third linear function.

[0066] It should be noted that the aging test of the catalyst can refer to the conventional scheme, which is only illustrated here.

[0067] Further, in one embodiment, referring to Figure 3 , Figure 3 for Figure 1 Detailed flow chart of step S20 in FIG. Figure 3 As shown, step S20 includes:

[0068] Step S201, performing several aging tests on the catalyst of the exhaust gas post-treatment standard solution and the catalyst of the exhaust gas post-treatment to be verified solution under the same hydrothermal aging conditions, wherein each aging test corresponds to a different aging test duration;

[0069] In this embodiment, for example, six aging tests are performed, and the durations of the aging tests are 0 hours, 50 hours, 100 hours, 150 hours, 200 hours, and 250 hours, respectively.

[0070] Step S202, based on a number of aging tests, obtaining exhaust emission test values ​​corresponding to the exhaust gas aftertreatment standard solution and exhaust emission test values ​​corresponding to the exhaust gas aftertreatment to be verified solution at each aging test duration;

[0071] Step S203, performing linear fitting based on the exhaust emission test values ​​corresponding to the exhaust post-treatment standard scheme at each aging test duration to obtain a second linear function;

[0072] Step S204 , performing linear fitting based on the exhaust emission test values ​​corresponding to the exhaust post-treatment scheme to be verified at each aging test duration to obtain a third linear function.

[0073] In this embodiment, the manner of performing linear fitting to obtain the second linear function and the third linear function is similar to step S10, and only the data basis used is different, which will not be described in detail here.

[0074] For the convenience of subsequent description, the second linear function is recorded as y=a2x'+b2, and the third linear function is recorded as y=a3x'+b3, wherein y is the exhaust emission value, and x' is the aging test duration.

[0075] Step S30, determining a fourth linear function based on the first linear function, the second linear function and the third linear function, wherein the independent variable of the fourth linear function is the vehicle mileage and the dependent variable is the exhaust emission value;

[0076] In this embodiment, as the aging test time increases, the performance of the catalyst will gradually decrease and deteriorate, that is, the tail emissions will gradually increase, that is, the slopes of the second linear function and the third linear function represent the degradation factor corresponding to the exhaust gas post-treatment standard solution and the degradation factor corresponding to the exhaust gas post-treatment to be verified solution, respectively. Further, the ratio of the slope of the third linear function to the slope of the second linear function can characterize the degree of degradation of the exhaust gas post-treatment to be verified solution compared to the exhaust gas post-treatment standard solution. On this basis, combined with the first linear function corresponding to the exhaust gas post-treatment standard solution, the fourth linear function corresponding to the exhaust gas post-treatment to be verified solution can be obtained.

[0077] Further, in one embodiment, referring to Figure 4 , Figure 4 for Figure 1 Detailed flow chart of step S30 in FIG. Figure 4 As shown, step S30 includes:

[0078] Step S301, calculating the ratio of the third slope of the third linear function to the second slope of the second linear function;

[0079] In this embodiment, the ratio of the third slope a3 of the third linear function to the second slope a2 of the second linear function is denoted as p.

[0080] Step S302, taking the product of the first slope of the first linear function and the ratio as the fourth slope of the fourth linear function, and taking the initial value of exhaust emission corresponding to the exhaust post-treatment scheme to be verified as the fourth intercept of the fourth linear function.

[0081] In this embodiment, referring to the above description, the fourth slope a4=p*a1; the fourth intercept b4 is the initial value of exhaust gas emission corresponding to the exhaust gas post-treatment scheme to be verified, that is, the exhaust gas emission value obtained by bench test measurement of the catalyst in the exhaust gas post-treatment scheme to be verified without performance loss. The fourth linear function is recorded as y=a4*x+b4, where y is the exhaust gas emission value and x is the vehicle mileage.

[0082] Step S40, obtaining a verification result of the exhaust gas aftertreatment scheme to be verified based on a fourth linear function.

[0083] In this embodiment, the exhaust emission value corresponding to the exhaust post-treatment scheme to be verified under each vehicle mileage can be obtained based on the fourth linear function, and then compared with the preset limit value to obtain the verification result of the exhaust post-treatment scheme to be verified.

[0084] Further, in one embodiment, referring to Figure 5 , Figure 5 for Figure 1 Detailed flow chart of step S40 in FIG. Figure 5 As shown, step S40 includes:

[0085] Step S401, substituting the preset value of vehicle mileage into the fourth linear function to obtain the exhaust emission value to be verified;

[0086] Step S402, if the exhaust emission value to be verified is greater than the emission limit, determining that the verification result of the exhaust post-treatment solution to be verified is unqualified;

[0087] Step S403: If the exhaust emission value to be verified is not greater than the emission limit value, it is determined that the verification result of the exhaust after-treatment scheme to be verified is qualified.

[0088] In this embodiment, in combination with the description of the fourth linear function, the preset vehicle mileage value is substituted into the fourth linear function to obtain the exhaust emission value to be verified for the vehicle equipped with the exhaust after-treatment scheme to be verified at the preset vehicle mileage value, and the exhaust emission value to be verified is compared with the emission limit. If the exhaust emission value to be verified is greater than the emission limit, the verification result of the exhaust after-treatment scheme to be verified is determined to be unqualified; on the contrary, if the exhaust emission value to be verified is not greater than the emission limit, the verification result of the exhaust after-treatment scheme to be verified is determined to be qualified.

[0089] In the embodiment of the present application, the first linear function corresponding to the exhaust gas after-treatment standard scheme is determined, wherein the independent variable of the first linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value; the second linear function corresponding to the exhaust gas after-treatment standard scheme and the third linear function corresponding to the exhaust gas after-treatment scheme to be verified are determined, wherein the independent variables of the second linear function and the third linear function are the aging test duration and the dependent variable is the exhaust gas emission value; the fourth linear function is determined based on the first linear function, the second linear function and the third linear function, wherein the independent variable of the fourth linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value; the verification result of the exhaust gas after-treatment scheme to be verified is obtained based on the fourth linear function. Through the embodiment of the present application, based on the functional relationship between the vehicle mileage and the exhaust gas emission value corresponding to the standard scheme, combined with the functional relationship between the aging test duration and the exhaust gas emission value corresponding to the standard scheme and the scheme to be verified, the functional relationship between the vehicle mileage and the exhaust gas emission value corresponding to the scheme to be verified is constructed, thereby realizing the verification of the exhaust gas after-treatment scheme to be verified.

[0090] In a second aspect, an embodiment of the present application also provides an exhaust gas after-treatment scheme verification device.

[0091] In one embodiment, referring to Figure 6 , Figure 6 This is a functional module diagram of an embodiment of the exhaust gas post-treatment scheme verification device of the present application. Figure 6 As shown, the exhaust gas aftertreatment scheme verification device includes:

[0092] A first fitting module 10 is used to determine a first linear function corresponding to the exhaust gas post-treatment standard solution, wherein the independent variable of the first linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value;

[0093] The second fitting module 20 is used to determine a second linear function corresponding to the exhaust gas post-treatment standard solution and a third linear function corresponding to the exhaust gas post-treatment to be verified solution, wherein the independent variables of the second linear function and the third linear function are the aging test duration and the dependent variables are the exhaust gas emission values;

[0094] A construction module 30 is used to determine a fourth linear function based on the first linear function, the second linear function and the third linear function, wherein the independent variable of the fourth linear function is the vehicle mileage and the dependent variable is the exhaust emission value;

[0095] The verification module 40 is used to obtain a verification result of the exhaust gas post-treatment scheme to be verified based on a fourth linear function.

[0096] Furthermore, in one embodiment, the first fitting module 10 is used to:

[0097] Obtaining actual exhaust emission values ​​corresponding to a vehicle equipped with the exhaust aftertreatment standard solution at multiple actual vehicle mileages;

[0098] A linear fitting is performed based on the actual exhaust emission values ​​corresponding to the multiple actual vehicle mileages to obtain a first linear function.

[0099] Furthermore, in one embodiment, the second fitting module 20 is used to:

[0100] The catalyst of the exhaust gas after-treatment standard solution and the catalyst of the exhaust gas after-treatment to be verified solution are subjected to several aging tests under the same hydrothermal aging conditions, wherein each aging test corresponds to a different aging test duration;

[0101] Based on several aging tests, the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme and the exhaust emission test values ​​corresponding to the exhaust aftertreatment scheme to be verified under each aging test duration are obtained;

[0102] A second linear function is obtained by performing a linear fitting based on the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme at each aging test duration;

[0103] A third linear function is obtained by performing linear fitting based on the exhaust emission test values ​​corresponding to the exhaust after-treatment scheme to be verified at each aging test duration.

[0104] Furthermore, in one embodiment, the construction module 30 is used to:

[0105] calculating a ratio of a third slope of the third linear function to a second slope of the second linear function;

[0106] The product of the first slope of the first linear function and the ratio is used as the fourth slope of the fourth linear function, and the initial value of exhaust gas emission corresponding to the exhaust gas after-treatment scheme to be verified is used as the fourth intercept of the fourth linear function.

[0107] Furthermore, in one embodiment, the verification module 40 is used to:

[0108] Substituting the preset vehicle mileage value into the fourth linear function to obtain the exhaust emission value to be verified;

[0109] If the exhaust gas emission value to be verified is greater than the emission limit, the verification result of the exhaust gas aftertreatment solution to be verified is determined to be unqualified;

[0110] If the exhaust gas emission value to be verified is not greater than the emission limit, the verification result of the exhaust gas aftertreatment scheme to be verified is determined to be qualified.

[0111] Among them, the functional implementation of each module in the above-mentioned exhaust gas post-treatment scheme verification device corresponds to the various steps in the above-mentioned exhaust gas post-treatment scheme verification method embodiment, and its functions and implementation processes will not be repeated here one by one.

[0112] In a third aspect, an embodiment of the present application provides an exhaust gas after-treatment scheme verification device, which may be a personal computer (PC), a laptop computer, a server, or other device with data processing capabilities.

[0113] Reference Figure 7 , Figure 7 The hardware structure diagram of the exhaust gas post-treatment scheme verification device involved in the embodiment of the present application is shown in FIG. In the embodiment of the present application, the exhaust gas post-treatment scheme verification device may include a processor, a memory, a communication interface, and a communication bus.

[0114] The communication bus may be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0115] The communication interface includes an input / output (I / O) interface, a physical interface, and a logical interface, which are used to interconnect the devices inside the exhaust gas post-treatment scheme verification device, and an interface used to interconnect the exhaust gas post-treatment scheme verification device with other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, an optical fiber interface, an ATM interface, etc.; the user device can be a display, a keyboard, etc.

[0116] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0117] The processor may be a general-purpose processor, and the general-purpose processor may call the exhaust gas post-treatment scheme verification program stored in the memory, and execute the exhaust gas post-treatment scheme verification method provided in the embodiment of the present application. For example, the general-purpose processor may be a central processing unit (CPU). Among them, the method executed when the exhaust gas post-treatment scheme verification program is called may refer to the various embodiments of the exhaust gas post-treatment scheme verification method of the present application, which will not be repeated here.

[0118] Those skilled in the art will understand that Figure 7The hardware structure shown in the figure does not constitute a limitation on the present application, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0119] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium.

[0120] The computer-readable storage medium of the present application stores an exhaust gas post-treatment scheme verification program, wherein when the exhaust gas post-treatment scheme verification program is executed by a processor, the steps of the exhaust gas post-treatment scheme verification method as described above are implemented.

[0121] Among them, the method implemented when the exhaust gas post-treatment scheme verification program is executed can refer to the various embodiments of the exhaust gas post-treatment scheme verification method of the present application, and will not be repeated here.

[0122] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0123] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit "first", "second" and "third" to different types.

[0124] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a specific way.

[0125] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0126] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish the different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0127] 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 application 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, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0128] 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 protection scope of the present application.

Claims

1. A method for verifying an exhaust gas post-treatment scheme, characterized in that: The exhaust gas post-treatment scheme verification method includes: Determine a first linear function corresponding to the exhaust gas aftertreatment standard solution, wherein the independent variable of the first linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value; Determine a second linear function corresponding to the exhaust gas aftertreatment standard solution and a third linear function corresponding to the exhaust gas aftertreatment to be verified solution, wherein the independent variables of the second linear function and the third linear function are the aging test duration and the dependent variables are the exhaust gas emission values; Determine a fourth linear function based on the first linear function, the second linear function and the third linear function, wherein the independent variable of the fourth linear function is the vehicle mileage and the dependent variable is the exhaust emission value; The verification result of the exhaust gas aftertreatment scheme to be verified is obtained based on the fourth linear function.

2. The exhaust gas post-treatment scheme verification method according to claim 1, characterized in that: The first linear function corresponding to the exhaust gas post-treatment standard solution includes: Obtaining actual exhaust emission values ​​corresponding to a vehicle equipped with the exhaust aftertreatment standard solution at multiple actual vehicle mileages; A linear fitting is performed based on the actual exhaust emission values ​​corresponding to the multiple actual vehicle mileages to obtain a first linear function.

3. The exhaust gas post-treatment scheme verification method according to claim 1, characterized in that: The second linear function corresponding to the exhaust gas post-treatment standard solution and the third linear function corresponding to the exhaust gas post-treatment solution to be verified include: The catalyst of the exhaust gas after-treatment standard solution and the catalyst of the exhaust gas after-treatment to be verified solution are subjected to several aging tests under the same hydrothermal aging conditions, wherein each aging test corresponds to a different aging test duration; Based on several aging tests, the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme and the exhaust emission test values ​​corresponding to the exhaust aftertreatment scheme to be verified under each aging test duration are obtained; A second linear function is obtained by performing a linear fitting based on the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme at each aging test duration; A third linear function is obtained by performing linear fitting based on the exhaust emission test values ​​corresponding to the exhaust after-treatment scheme to be verified at each aging test duration.

4. The exhaust gas post-treatment scheme verification method according to claim 1, characterized in that: Determining the fourth linear function based on the first linear function, the second linear function and the third linear function comprises: calculating a ratio of a third slope of the third linear function to a second slope of the second linear function; The product of the first slope of the first linear function and the ratio is used as the fourth slope of the fourth linear function, and the initial value of exhaust gas emission corresponding to the exhaust gas after-treatment scheme to be verified is used as the fourth intercept of the fourth linear function.

5. The exhaust gas post-treatment scheme verification method according to claim 1, characterized in that: The verification result of the exhaust gas post-treatment scheme to be verified obtained based on the fourth linear function includes: Substituting the preset vehicle mileage value into the fourth linear function to obtain the exhaust emission value to be verified; If the exhaust gas emission value to be verified is greater than the emission limit, the verification result of the exhaust gas aftertreatment solution to be verified is determined to be unqualified; If the exhaust gas emission value to be verified is not greater than the emission limit, the verification result of the exhaust gas aftertreatment scheme to be verified is determined to be qualified.

6. An exhaust gas post-treatment scheme verification device, characterized in that: The exhaust gas post-treatment scheme verification device comprises: A first fitting module is used to determine a first linear function corresponding to the exhaust gas post-treatment standard solution, wherein the independent variable of the first linear function is the vehicle mileage and the dependent variable is the exhaust gas emission value; A second fitting module is used to determine a second linear function corresponding to the exhaust gas post-treatment standard solution and a third linear function corresponding to the exhaust gas post-treatment to be verified solution, wherein the independent variables of the second linear function and the third linear function are the aging test duration and the dependent variable is the exhaust gas emission value; A construction module is used to determine a fourth linear function based on the first linear function, the second linear function and the third linear function, wherein the independent variable of the fourth linear function is the vehicle mileage and the dependent variable is the exhaust emission value; A verification module is used to obtain a verification result of the exhaust gas aftertreatment scheme to be verified based on a fourth linear function.

7. The exhaust gas post-treatment scheme verification device according to claim 6, characterized in that: The second fitting module is used to: The catalyst of the exhaust gas after-treatment standard solution and the catalyst of the exhaust gas after-treatment to be verified solution are subjected to several aging tests under the same hydrothermal aging conditions, wherein each aging test corresponds to a different aging test duration; Based on several aging tests, the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme and the exhaust emission test values ​​corresponding to the exhaust aftertreatment scheme to be verified under each aging test duration are obtained; A second linear function is obtained by performing a linear fitting based on the exhaust emission test values ​​corresponding to the exhaust aftertreatment standard scheme at each aging test duration; A third linear function is obtained by performing linear fitting based on the exhaust emission test values ​​corresponding to the exhaust after-treatment scheme to be verified at each aging test duration.

8. The exhaust gas post-treatment scheme verification device according to claim 6, characterized in that: Building blocks for: calculating a ratio of a third slope of the third linear function to a second slope of the second linear function; The product of the first slope of the first linear function and the ratio is used as the fourth slope of the fourth linear function, and the initial value of exhaust gas emission corresponding to the exhaust gas after-treatment scheme to be verified is used as the fourth intercept of the fourth linear function.

9. An exhaust gas post-treatment scheme verification device, characterized in that: The exhaust gas after-treatment scheme verification device includes a processor, a memory, and an exhaust gas after-treatment scheme verification program stored in the memory and executable by the processor, wherein when the exhaust gas after-treatment scheme verification program is executed by the processor, the steps of the exhaust gas after-treatment scheme verification method as described in any one of claims 1 to 5 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores an exhaust gas post-treatment scheme verification program, wherein when the exhaust gas post-treatment scheme verification program is executed by a processor, the steps of the exhaust gas post-treatment scheme verification method according to any one of claims 1 to 5 are implemented.

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