Gas engine emission control method, device, storage medium and electronic equipment

Abstract

The application provides a gas machine emission control method and device, a storage medium and an electronic device. The method comprises the following steps: obtaining the conversion efficiency of a three-way catalyst of a gas machine in a previous driving cycle; determining a conversion efficiency interval in which the conversion efficiency of the three-way catalyst is located; determining target basic data corresponding to the conversion efficiency interval, and adaptively switching the current basic data to the target basic data, and adjusting the original emission of the gas machine by using the target basic data, so that one of the following conditions is met: the tail emission of the gas machine meets the emission standard, the gas consumption of at least the current driving cycle is less than the preset gas consumption while meeting the emission standard, and the power of the gas machine is within the preset power range while meeting the emission standard. The scheme solves the problem that the same set of engine basic data cannot meet the matching of the whole life cycle of the three-way catalyst, and cannot take into account the economy, compliance and power.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gas machines, in particular to a gas machine emission control method and device, a storage medium and an electronic device. BACKGROUND

[0002] As a core component of gas machine aftertreatment, the main function of the three-way catalyst is to purify the CO, NOx, HC and other pollutants in the engine exhaust by using the noble metal inside the catalyst to participate in chemical reactions. The conversion efficiency of the catalyst determines the emission level, and the storage oxygen capacity is usually used to represent the conversion efficiency and aging degree of the catalyst.

[0003] Research has found that: ① the conversion efficiency of a fresh three-way catalyst is high, and the emission results after purification by the three-way catalyst have a large margin from the standard required limit; ② as the use time of the catalyst increases, the storage oxygen capacity and ability gradually decrease, and the conversion efficiency decreases, at which time the emission results after purification by the three-way catalyst approach the standard required limit; ③ when the three-way catalyst continues to age, the conversion efficiency further decreases, at which time the emission results after purification by the three-way catalyst do not meet the standard requirements.

[0004] The current technology generally uses the same set of engine base data to meet the matching of the entire life cycle of the three-way catalyst, and cannot balance economy, compliance (i.e. emission) and power. SUMMARY

[0005] The main purpose of the present application is to provide a gas machine emission control method, device, storage medium and electronic device to at least solve the problem that the same set of engine base data cannot meet the matching of the entire life cycle of the three-way catalyst, and cannot balance economy, compliance and power.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a gas machine emission control method is provided, comprising: obtaining the conversion efficiency of a three-way catalyst of a gas machine in a previous driving cycle; determining a conversion efficiency interval in which the conversion efficiency of the three-way catalyst is located; determining target base data corresponding to the conversion efficiency interval, and adaptively switching the current base data to the target base data, and adjusting the original emission of the gas machine using the target base data, so that one of the following is met: the tail emission of the gas machine meets the emission standard, the gas consumption of at least the current driving cycle is less than the preset gas consumption while meeting the emission standard, and the power of the gas machine is within the preset power range while meeting the emission standard; wherein the target base data is data that affects the original emission of the gas machine, the original emission is the original emission amount of the emission gas without purification by the three-way catalyst aftertreatment device, and the tail emission is the final emission amount of the emission gas after purification by the three-way catalyst aftertreatment device.

[0007] Optionally, determining the conversion efficiency interval in which the conversion efficiency of the three-way catalyst is located comprises: in a case where the conversion efficiency of the three-way catalyst is greater than or equal to a first conversion rate threshold, determining that the conversion efficiency interval in which the conversion efficiency is located is a first conversion rate interval, the first conversion rate interval corresponding to an initial tail emission that meets and is superior to a margin of the emission standard within a first margin range; in a case where the conversion efficiency of the three-way catalyst is greater than or equal to a second conversion rate threshold and less than the first conversion rate threshold, determining that the conversion efficiency interval in which the conversion efficiency is located is a second conversion rate interval, the second conversion rate interval corresponding to an initial tail emission that meets and is superior to a margin of the emission standard within a second margin range, a minimum margin of the first margin range being greater than a maximum margin of the second margin range; in a case where the conversion efficiency of the three-way catalyst is less than the second conversion rate threshold, determining that the conversion efficiency interval in which the conversion efficiency is located is a third conversion rate interval, the third conversion rate interval corresponding to at least part of the initial tail emission not meeting a corresponding emission standard thereof; wherein the initial tail emission is a tail emission that has not been adaptively adjusted, and the second conversion rate threshold is less than the first conversion rate threshold.

[0008] Optionally, the target basic data corresponding to the conversion efficiency interval is determined, and the current basic data is adaptively switched to the target basic data, and the original exhaust of the gas machine is adjusted by using the target basic data, so that one of the following is met: the tail exhaust of the gas machine meets the emission standard, the gas consumption of at least the current driving cycle is less than the preset gas consumption while meeting the emission standard, and the power of the gas machine is within the preset power range while meeting the emission standard, comprising: in the case that the conversion efficiency interval is the first conversion rate interval, the current basic data is switched to a first group of target basic data, and the original exhaust of the gas machine is controlled within a first original exhaust range by using the first group of target basic data, so that the tail exhaust of the gas machine meets the emission standard, the gas consumption of at least the current driving cycle is less than the preset gas consumption, and the power of the gas machine is within the preset power range; in the case that the conversion efficiency interval is the second conversion rate interval, the current basic data is switched to a second group of target basic data, and the original exhaust of the gas machine is controlled within a second original exhaust range by using the second group of target basic data, so that the tail exhaust of the gas machine meets the emission standard and the power of the gas machine is within the preset power range; in the case that the conversion efficiency interval is the third conversion rate interval, the current basic data is switched to a third group of target basic data, and the original exhaust of the gas machine is controlled within a third original exhaust range by using the third group of target basic data, so that the tail exhaust of the gas machine first meets the emission standard, wherein the maximum value of the third original exhaust range is less than the minimum value of the second original exhaust range, and the maximum value of the second original exhaust range is less than the minimum value of the first original exhaust range.

[0009] Optionally, the target basic data is adjusted by using the target basic data to adjust the original exhaust of the gas machine, comprising: determining an aging factor corresponding to the conversion efficiency of the three-way catalyst; correcting the target basic data by using the aging factor to obtain corrected target basic data; and adjusting the original exhaust of the gas machine by using the corrected target basic data.

[0010] Optionally, the aging factor corresponding to the conversion efficiency of the three-way catalyst is determined, comprising: determining the oxygen storage capacity of the three-way catalyst corresponding to the conversion efficiency of the three-way catalyst; and determining the aging factor according to the ratio of the oxygen storage capacity of the three-way catalyst to the preset oxygen content.

[0011] Optionally, the target basic data is corrected by using the aging factor to obtain corrected target basic data, comprising: obtaining the ratio of the aging factor to a reference aging factor; and multiplying the ratio by the target basic data to obtain the corrected target basic data.

[0012] Optionally, after determining the target basic data corresponding to the conversion efficiency interval, adaptively switching the current basic data to the target basic data, and adjusting the original exhaust of the gas machine by using the target basic data, the method further comprises: obtaining a new aging factor calculated after the current driving cycle satisfies the conversion efficiency calculation condition of the three-way catalyst; and storing the new aging factor in the memory before the ECU is powered off.

[0013] According to another aspect of the present application, a gas machine emission control device is provided, comprising: a first obtaining unit configured to obtain the conversion efficiency of a three-way catalyst of a gas machine in a last driving cycle; a determining unit configured to determine the conversion efficiency interval in which the conversion efficiency of the three-way catalyst is located; and a processing unit configured to determine target basic data corresponding to the conversion efficiency interval, adaptively switch the current basic data to the target basic data, and adjust the original exhaust of the gas machine by using the target basic data, so as to satisfy one of the following: the tail exhaust of the gas machine satisfies the emission standard, the gas consumption of at least the current driving cycle is less than a preset gas consumption while satisfying the emission standard, and the power of the gas machine is within a preset power range while satisfying the emission standard; wherein the target basic data is data affecting the original exhaust of the gas machine, the original exhaust is the original exhaust amount of exhaust gas without being purified by a three-way catalyst aftertreatment device, and the tail exhaust is the final exhaust amount of the exhaust gas purified by the three-way catalyst aftertreatment device.

[0014] According to another aspect of the present application, a computer readable storage medium is provided, comprising a stored program, wherein the computer readable storage medium controls the device in which the computer readable storage medium is located to execute any one of the gas machine emission control methods when the program is running.

[0015] According to another aspect of the present application, an electronic device is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs comprise a program for executing any one of the gas machine emission control methods.

[0016] According to the technical solution of the application, the conversion efficiency of the three-way catalyst of the gas machine in the last driving cycle is acquired, the conversion efficiency interval in which the conversion efficiency of the three-way catalyst is located is determined, the target basic data corresponding to the conversion efficiency interval is determined, the current basic data is adaptively switched to the target basic data, and the target basic data is used to adjust the original emission of the gas machine, so that the target basic data is adaptively adjusted according to the different conversion efficiencies, and the original emission of the whole gas machine is adaptively adjusted to meet the requirements of economy, compliance and power. The problem that the same group of engine basic data cannot meet the matching of the whole life cycle of the three-way catalyst and cannot meet the requirements of economy, compliance and power is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings constituting a part of the specification illustrate the present application and the exemplary embodiments of the present application and their description serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 A hardware structure block diagram of a mobile terminal for executing a gas machine emission control method according to an embodiment of the present application is shown;

[0019] Figure 2 A flowchart of a gas machine emission control method according to an embodiment of the present application is shown;

[0020] Figure 3 A flowchart of determining a conversion efficiency interval according to an embodiment of the present application is shown;

[0021] Figure 4 A flowchart of determining target basic data according to an embodiment of the present application is shown;

[0022] Figure 5 A flowchart of a specific gas machine emission control method according to an embodiment of the present application is shown;

[0023] Figure 6 A structure block diagram of a gas machine emission control device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] For the convenience of description, the following describes some nouns or terms related to the embodiments of the present application:

[0028] MAP: map, input X, Y, output corresponding value Z;

[0029] EEP: the abbreviation of EEPROM, a kind of electrically erasable programmable read-only memory, is a kind of storage chip without data loss after power failure;

[0030] Original emission: the original emission of the engine, i.e. the original emission without purification by the three-way catalyst aftertreatment device;

[0031] Tail emission: the final emission of the engine, i.e. the final emission after purification by the aftertreatment.

[0032] Three-way catalyst aging factor: the aging degree or conversion efficiency of the three-way catalyst is generally represented by the oxygen storage capacity of the three-way catalyst, for example: the aging factor value of the fresh three-way catalyst is defined as 1, and the aging factor value is less than 1 after aging;The smaller the oxygen storage capacity of the three-way catalyst, the smaller the aging factor, and the lower the conversion efficiency.

[0033] As described in the background section, the existing technology uses the same set of engine basic data to meet the matching requirements of the three-way catalytic converter throughout its entire life cycle, which cannot simultaneously take into account economy, compliance, and power. In order to solve the problem that the same set of engine basic data cannot simultaneously take into account economy, compliance, and power when meeting the matching requirements of the three-way catalytic converter throughout its entire life cycle, the embodiments of this application provide a gas engine emission control method, device, storage medium, and electronic device.

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] The methods and embodiments provided in this application can be executed on a mobile terminal, computer terminal, or similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for a gas engine emission control method according to an embodiment of the present invention. Figure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0036] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the gas emission control method in this embodiment of the invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. The memory 104 may include high-speed random access memory and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of the aforementioned networks may include wireless networks provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0037] This embodiment provides a gas emission control method that runs on a mobile terminal, computer terminal, or similar computing device. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Also, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0038] Figure 2 This is a flowchart of a gas engine emission control method according to an embodiment of this application. Figure 2 As shown, the method includes the following steps:

[0039] Step S201: Obtain the conversion efficiency of the three-way catalytic converter of the gas engine in the previous driving cycle;

[0040] A driving cycle is the complete process of a vehicle starting, running (and detecting any malfunctions), and shutting down; it includes engine starting, engine shutdown, and normal driving.

[0041] Among them, the gas engine is a gas engine installed in a vehicle;

[0042] One driving cycle is processed in one processing stage, so that the data in the previous driving cycle can be used as the basis for the control of the current driving cycle.

[0043] In step S202, the conversion efficiency interval of the three-way catalyst is determined.

[0044] Specifically, the conversion efficiency of the three-way catalyst can be divided into different conversion efficiency intervals. Generally, the longer the gas machine is used, the lower the conversion efficiency of the three-way catalyst. That is, the conversion efficiency of the three-way catalyst is different at different stages of the whole life cycle.

[0045] Specifically, the conversion efficiency interval is divided according to the conversion efficiency nodes, which needs to consider the properties of the three-way catalyst of the gas machine, such as the life property. That is, different three-way catalysts set different conversion efficiency intervals, which helps the accuracy of the subsequent determined target basic data, and further takes into account the economy, compliance and power.

[0046] In step S203, the target basic data corresponding to the conversion efficiency interval is determined, and the current basic data is adaptively switched to the target basic data, and the target basic data is used to adjust the original emission of the gas machine, so that one of the following is met: the tail emission of the gas machine meets the emission standard, the gas consumption of the current driving cycle is less than the preset gas consumption while meeting the emission standard, and the power of the gas machine is within the preset power range while meeting the emission standard.

[0047] Among them, the tail emission of the gas machine meeting the emission standard corresponds to the compliance, i.e. the emission, the gas consumption of the current driving cycle being less than the preset gas consumption corresponds to the economy, and the power of the gas machine being within the preset power range corresponds to the power.

[0048] The strategy of setting different target basic data for different conversion efficiency intervals in the present scheme prevents the phenomenon that the same set of engine basic data meets the matching of the whole life cycle of the three-way catalyst, that is, the different conversion efficiencies lead to different emission results, and further takes into account the economy, compliance and power.

[0049] Moreover, the present scheme meets the economy, compliance and power by adjusting the original emission of the gas machine, which is more accurate and timely.

[0050] Among them, the target basic data is the data that affects the original emission of the gas machine, the original emission is the original emission of the exhaust gas without purification by the three-way catalyst aftertreatment device, and the tail emission is the final emission of the exhaust gas after purification by the three-way catalyst aftertreatment device.

[0051] Specifically, the same version of data adapting to different aging degrees of the three-way catalyst will cause the three-way catalyst conversion efficiency to be high, the emission amount to be large, and the economy and power performance to be poor; when the three-way catalyst conversion efficiency is lower than a certain range, the emission does not meet the regulations, and the power performance and the economy are also poor. The scheme of the present application skillfully avoids the above defects.

[0052] The gas machine emission control method of the present application determines the conversion efficiency interval in which the conversion efficiency of the three-way catalyst is located by obtaining the conversion efficiency of the three-way catalyst of the gas machine in the last driving cycle, determines the target basic data corresponding to the conversion efficiency interval, and adaptively switches the current basic data to the target basic data, and adjusts the original emission of the gas machine using the target basic data, which realizes adaptive adjustment of the target basic data according to the different conversion efficiencies, and further adaptive adjustment of the original emission of the whole gas machine to meet the economy, compliance and power performance. The problem that the same set of engine basic data cannot meet the matching of the whole life cycle of the three-way catalyst, and cannot meet the economy, compliance and power performance is solved.

[0053] In the method embodiment of the present application, step S202, determining the conversion efficiency interval in which the conversion efficiency of the three-way catalyst is located, as shown in Figure 3 , includes the following steps:

[0054] Step S2021, in the case that the conversion efficiency of the three-way catalyst is greater than or equal to the first conversion rate threshold, determining that the conversion efficiency interval in which the conversion efficiency is located is the first conversion rate interval, and the initial tail emission corresponding to the first conversion rate interval meets and is superior to the excess amount of the emission standard within the first excess amount range;

[0055] In this case, the initial tail emission under the conversion efficiency exceeds the emission standard and has more excess amount, and at this time, the original emission can be adjusted by setting the corresponding target basic data to meet the compliance while taking into account the economy and the power performance;

[0056] Step S2022, in the case that the conversion efficiency of the three-way catalyst is greater than or equal to the second conversion rate threshold and less than the first conversion rate threshold, determining that the conversion efficiency interval in which the conversion efficiency is located is the second conversion rate interval, and the initial tail emission corresponding to the second conversion rate interval meets and is superior to the excess amount of the emission standard within the second excess amount range, and the minimum excess amount of the first excess amount range is greater than the maximum excess amount of the second excess amount range;

[0057] In this case, the initial tail emission under the conversion efficiency meets the emission standard but has a small excess amount, and at this time, the adjustment is made according to the corresponding target basic data to balance the emission, economy and power performance of the engine.

[0058] Step S2023, in the case that the conversion efficiency of the three-way catalyst is less than the second conversion rate threshold, determining that the conversion efficiency is in a third conversion efficiency interval, and at least part of the emissions in the initial exhaust emission does not meet the corresponding emission standard corresponding to the third conversion efficiency interval;

[0059] The second conversion rate threshold is less than the first conversion rate threshold. For example, the first conversion rate threshold is 90%, and the second conversion rate threshold is 80%.

[0060] In addition, the second conversion rate threshold and the first conversion rate threshold can be set according to the emission standard, and change with the change of the emission standard.

[0061] The emissions include CO, HC, NO X , etc. Different emissions have their corresponding emission standards, for example, the emission standard of CO is not more than 0.7 mg / km, the emission standard of HC is not more than 0.068 mg / km, and the emission standard of NO X is not more than 0.06 mg / km.

[0062] The initial exhaust emission is an exhaust emission without adaptive adjustment.

[0063] In this case, the initial exhaust emission corresponding to the conversion efficiency does not meet the emission standard, and the corresponding target basic data needs to be set to meet the emission requirements. If the economy and power can be met at the same time, it is more ideal.

[0064] As described above, the above three cases are typical, and the division method is more reasonable and convenient to solve the technical problem that the same set of engine basic data cannot meet the three-way catalyst full life cycle matching, and cannot meet the economy, compliance and power.

[0065] Of course, the conversion rate interval can also be divided into more than three cases. For example, the first conversion rate interval can be divided into two subintervals, the second conversion rate interval can be divided into three subintervals, and the third conversion rate interval can be divided into two subintervals; for example, the first conversion rate interval can be divided into three subintervals, the second conversion rate interval can be divided into two subintervals, and the third conversion rate interval can be divided into two subintervals; and other interval division methods can be selected, and the purpose of selection is to consider the economy, compliance and power.

[0066] Specifically, target base data corresponding to the conversion efficiency interval is determined, and the current base data is adaptively switched to the target base data, and the original exhaust of the gas machine is adjusted using the target base data, so that one of the following is met: the tail exhaust of the gas machine meets the emission standard, the gas consumption of at least the current driving cycle is less than the preset gas consumption while meeting the emission standard, and the power of the gas machine is within the preset power range while meeting the emission standard, including:

[0067] In the case of the conversion efficiency interval being the first conversion rate interval, the current base data is switched to the first set of target base data, and the first set of target base data is used to control the original exhaust of the gas machine to be within the first original exhaust range, so that the tail exhaust of the gas machine meets the emission standard, and the gas consumption of at least the current driving cycle is less than the preset gas consumption, and the power of the gas machine is within the preset power range.

[0068] That is, for the first case, the emission has been maximally met, and since there is a large margin, the original exhaust can be appropriately increased to save costs, i.e., to reduce gas consumption to improve economy and power.

[0069] In the case of the conversion efficiency interval being the second conversion rate interval, the current base data is switched to the second set of target base data, and the second set of target base data is used to control the original exhaust of the gas machine to be within the second original exhaust range, so that the tail exhaust of the gas machine meets the emission standard, and the power of the gas machine is within the preset power range.

[0070] That is, for the second case, the emission is just met, but the margin is small, so at this time, the emission, economy, and power of the engine can be balanced.

[0071] In the case of the conversion efficiency interval being the third conversion rate interval, the current base data is switched to the third set of target base data, and the third set of target base data is used to control the original exhaust of the gas machine to be within the third original exhaust range, so that the tail exhaust of the gas machine first meets the emission standard, wherein the maximum value of the third original exhaust range is less than the minimum value of the second original exhaust range, and the maximum value of the second original exhaust range is less than the minimum value of the first original exhaust range.

[0072] That is, for the third case, if no adjustment is made, the compliance requirement is not met, and since compliance is the most important requirement, it is appropriate to prioritize meeting the compliance requirement. It is more ideal if the economy and power can also be met.

[0073] As above, the adjustment mode for the three cases is reasonable in terms of the consideration of emission, economy, and power, and further takes into account economy, compliance, and power.

[0074] That is, the engine emission can be guaranteed to meet the regulatory requirements while reducing gas consumption, improving engine economy and power. At the same time, the use range of the three-way catalyst can be increased by fine-tuning the relevant base data, and the emission requirements can be met at a lower conversion efficiency, improving the robustness of the emission. Before the aging state of the three-way catalyst is too low to be reversed, the conversion efficiency of the three-way catalyst can be maximized by modifying the basic data.

[0075] Further, in step S203, adjusting the original emission of the gas machine by using the target base data, as shown in the following formula: Figure 4

[0076] Step S2031: determining an aging factor corresponding to the conversion efficiency of the three-way catalyst;

[0077] The change of the aging factor reflects the change of the conversion efficiency of the three-way catalyst. The smaller the oxygen storage capacity of the three-way catalyst, the smaller the aging factor, and the lower the conversion efficiency.

[0078] Step S2032: correcting the target base data by using the aging factor to obtain corrected target base data;

[0079] Since the target base data set previously is set for the conversion efficiency interval, in order to achieve more accurate control, the size factor of the aging factor can be considered again.

[0080] Step S2033: adjusting the original emission of the gas machine by using the corrected target base data.

[0081] By correcting the target base data by using the aging factor to obtain corrected target base data, and adjusting the original emission of the gas machine by using the corrected target base data. Since the size factor of the aging factor is considered, the corrected target base data is more accurate, and the original emission is more accurate, further considering economy, compliance and power.

[0082] In the embodiment of the present application, the aging factor corresponding to the conversion efficiency of the three-way catalyst is determined, including:

[0083] Determining the oxygen storage capacity of the three-way catalyst corresponding to the conversion efficiency of the three-way catalyst;

[0084] The aging factor is determined according to the ratio of the oxygen storage capacity of the three-way catalyst to the preset oxygen content.

[0085] The oxygen storage capacity can be obtained in some appropriate way, which is not limited in the present application.

[0086] The corresponding aging factor is determined according to the oxygen storage capacity of the three-way catalyst, which can realize accurate determination of the aging factor. ​

[0087] More specifically, the target base data is corrected by using the aging factor to obtain the corrected target base data, including:

[0088] obtaining a ratio of the aging factor to the reference aging factor;

[0089] The reference aging factor can be adjusted according to the different performance of the three-way catalyst;

[0090] multiplying the ratio with the target base data to obtain the corrected target base data.

[0091] This consideration of the ratio can more accurately determine the corrected target base data.

[0092] Of course, the method of using the ratio of the aging factor to the reference aging factor for correction as described above is only exemplary, and other methods can also be used to correct the target base data, for example, multiplying or dividing the aging factor by a predetermined coefficient to obtain a correction parameter, and using the correction parameter to correct the target base data; for example, using (1-A / B) to correct the target base data, where A represents the aging factor and B represents the predetermined coefficient; for example, using the difference between the aging factor and the reference aging factor to correct the target base data.

[0093] Further, after determining the target base data corresponding to the conversion efficiency interval and adaptively switching the current base data to the target base data, and using the target base data to adjust the original exhaust of the gas machine, the method further comprises:

[0094] obtaining a new aging factor calculated after the current driving cycle meets the conversion efficiency calculation condition of the three-way catalyst;

[0095] storing the new aging factor in the memory before the ECU is powered off.

[0096] That is, after meeting the conversion efficiency calculation condition of the three-way catalyst, a new aging factor is obtained to prepare for the calculation of the next driving cycle.

[0097] Specifically, the base data includes at least one of the following: lambda closed-loop control window MAP, pedal demand MAP, ignition advance angle MAP, and demand EGR rate MAP. Of course, other data can also be included.

[0098] In order for those skilled in the art to more clearly understand the technical solutions of the present application, the implementation process of the gas machine emission control method of the present application will be described in detail below in conjunction with specific embodiments.

[0099] The present embodiment relates to a specific gas machine emission control method, such as Figure 5The method comprises the following steps:

[0100] According to the aging factor value of the three-way catalyst, different original emission control modes are triggered: ① when the aging factor of the three-way catalyst is higher than the first threshold value, the conversion efficiency of the three-way catalyst is high, the engine emission adaptive control mode enters the high conversion mode, and the original emission is improved and the fuel consumption is reduced to improve the economy and power by modifying the related basic data; ② when the aging factor of the three-way catalyst is less than the first threshold value and greater than or equal to the second threshold value, the conversion efficiency of the three-way catalyst is in the normal range, the engine emission adaptive control mode enters the normal conversion mode, and the emission, economy and power of the engine are balanced by modifying the related basic data; ③ when the aging factor of the three-way catalyst is less than the second threshold value, the conversion efficiency of the three-way catalyst is low, the engine emission adaptive control mode enters the low conversion mode, and the original emission is reduced to ensure the emission of the engine by modifying the related basic data.

[0101] The aging factor of the fresh three-way catalyst can be assigned a initial value of 1, and the recalculated aging factor of the three-way catalyst in each driving cycle is stored in the EEP.

[0102] The basic data MAP affecting the emission, economy and power includes but is not limited to the lambda closed loop control window MAP, the pedal demand MAP, the ignition advance angle MAP, the demand EGR rate MAP, etc. When the engine enters different emission control modes based on the aging factor of the three-way catalyst, the above basic data MAP needs to be switched.

[0103] By switching different emission control modes based on the aging state of the three-way catalyst, the engine emission can be maximized to meet the regulatory requirements while reducing fuel consumption to improve the economy and power of the engine. At the same time, by fine-tuning the related basic data, the use range of the three-way catalyst can be increased, and the emission requirements can be met at a lower conversion efficiency, improving the robustness of the emission.

[0104] It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a group of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown.

[0105] This application also provides a gas engine emission control device. It should be noted that the gas engine emission control device of this application can be used to execute the gas engine emission control method provided in this application. This device is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0106] The following describes the gas engine emission control device provided in the embodiments of this application.

[0107] Figure 6 This is a schematic diagram of a gas engine emission control device according to an embodiment of this application. Figure 6 As shown, the device includes:

[0108] The first acquisition unit 61 is used to acquire the conversion efficiency of the three-way catalytic converter of the gas engine in the previous driving cycle;

[0109] A driving cycle is the complete process of a vehicle starting, running (and detecting any malfunctions), and shutting down; it includes engine starting, engine shutdown, and normal driving.

[0110] Determining unit 62 is used to determine the conversion efficiency range of the three-way catalytic converter.

[0111] The processing unit 63 is used to determine the target basic data corresponding to the conversion efficiency range, and adaptively switch the current basic data to the target basic data, and use the target basic data to adjust the original exhaust of the gas engine so as to satisfy one of the following: the exhaust of the gas engine meets the emission standards, while meeting the emission standards, at least the gas consumption of the current driving cycle is less than the preset gas consumption, while meeting the emission standards, at least the power of the gas engine is within the preset power range.

[0112] Among them, the target basic data is the data that affects the original emissions of the gas engine. The original emissions are the raw emissions of the exhaust gas without purification by the three-way catalytic converter aftertreatment device, and the tail emissions are the final emissions of the exhaust gas after purification by the three-way catalytic converter aftertreatment device.

[0113] The gas engine emission control device of this application includes a first acquisition unit that acquires the conversion efficiency of the three-way catalytic converter in the previous driving cycle, a determination unit that determines the conversion efficiency range of the three-way catalytic converter, and a processing unit that determines the target basic data corresponding to the conversion efficiency range. The device adaptively switches the current basic data to the target basic data and adjusts the original exhaust of the gas engine using the target basic data. This achieves adaptive adjustment of the target basic data based on different conversion efficiencies, thereby adaptively adjusting the original exhaust of the entire gas engine to meet the requirements of economy, compliance, and power. This solves the problem that using the same set of engine basic data to meet the matching needs of the three-way catalytic converter throughout its entire life cycle cannot simultaneously achieve economy, compliance, and power.

[0114] In embodiments of this application, the determining unit includes a first determining module, a second determining module, and a third determining module. The first determining module is used to determine the conversion efficiency range in which the conversion efficiency is located as a first conversion rate range when the conversion efficiency of the three-way catalytic converter is greater than or equal to a first conversion rate threshold. The initial tail emission corresponding to the first conversion rate range has a margin that satisfies and is better than the emission standard within a first margin range. The second determining module is used to determine the conversion efficiency range in which the conversion efficiency is located as a second conversion rate range when the conversion efficiency of the three-way catalytic converter is greater than or equal to a second conversion rate threshold and less than the first conversion rate threshold. The initial tail emission corresponding to the second conversion rate range has a margin that satisfies and is better than the emission standard within a second margin range. The minimum margin of the first margin range is greater than the maximum margin of the second margin range. The third determining module is used to determine the conversion efficiency range in which the conversion efficiency is located as a third conversion rate range when the conversion efficiency of the three-way catalytic converter is less than the second conversion rate threshold. At least some of the emissions in the initial tail emission corresponding to the third conversion rate range do not meet the corresponding emission standard. Wherein, the initial tail emission is a tail emission that has not undergone adaptive adjustment, and the second conversion rate threshold is less than the first conversion rate threshold. The above settings represent three typical scenarios. This classification is more reasonable and facilitates the matching of the same set of engine basic data to meet the full life cycle of the three-way catalytic converter. However, it cannot simultaneously address the technical issues of economy, compliance, and power.

[0115] In the embodiments of this application, the processing unit includes a first processing module, a second processing module, and a third processing module. The first processing module is used to switch the current basic data to a first set of target basic data when the conversion efficiency range is a first conversion rate range, and to use the first set of target basic data to control the original exhaust of the gas engine within the first original exhaust range, so that the exhaust of the gas engine meets the emission standards while ensuring that the gas consumption of the current driving cycle is less than the preset gas consumption and that the power of the gas engine is within the preset power range. The second processing module is used to switch the current basic data to a second set of target basic data when the conversion efficiency range is a second conversion rate range. The system uses three sets of basic data. First, it uses a second set of target basic data to control the engine's exhaust within the second set of target basic data, ensuring the engine's exhaust meets emission standards and its power output is within a preset range. Second, when the conversion efficiency range is within the third conversion rate range, it switches the current basic data to the third set of target basic data. This third set of target basic data is used to control the engine's exhaust within the third set of target basic data, ensuring the engine's exhaust first meets emission standards. The maximum value of the third set of target basic data is less than the minimum value of the second set of target basic data, and the maximum value of the second set of target basic data is less than the minimum value of the first set of target basic data. As described above, the adjustment methods for these three scenarios are relatively reasonable in terms of considering emissions, economy, and power, further balancing economy, compliance, and power. This means that while maximizing engine emissions compliance with regulations, it reduces gas consumption and improves engine economy and power. Furthermore, by fine-tuning the relevant basic data, the application range of the three-way catalytic converter can be increased, allowing emission requirements to be met even at lower conversion efficiencies, thus improving emission robustness. Before the aging of the three-way catalytic converter reaches an irreversible level, the conversion efficiency of the three-way catalytic converter can be maximized by modifying the basic data.

[0116] Furthermore, the processing unit includes an adjustment module, which is used to adjust the original exhaust of the gas turbine using target baseline data. The adjustment module includes a determination submodule, a correction submodule, and an adjustment submodule. The determination submodule is used to determine the aging factor corresponding to the conversion efficiency of the three-way catalytic converter; the correction submodule is used to correct the target baseline data using the aging factor to obtain corrected target baseline data; and the adjustment submodule is used to adjust the original exhaust of the gas turbine using the corrected target baseline data. By correcting the target baseline data using the aging factor, corrected target baseline data is obtained, and the original exhaust of the gas turbine is adjusted using the corrected target baseline data. Because the magnitude of the aging factor is considered, the corrected target baseline data is more accurate, thus making the original exhaust more accurate, further balancing economy, compliance, and power performance.

[0117] Furthermore, the determination submodule includes a first determination submodule and a second determination submodule. The first determination submodule is used to determine the oxygen storage capacity of the three-way catalytic converter corresponding to its conversion efficiency. The second determination submodule is used to determine the aging factor based on the ratio of the oxygen storage capacity of the three-way catalytic converter to a preset oxygen content. Determining the corresponding aging factor based on the oxygen storage capacity of the three-way catalytic converter allows for accurate determination of the aging factor. The oxygen storage capacity can be obtained using suitable methods, which are not limited in this application.

[0118] Furthermore, the correction submodule includes a sub-acquisition module and a sub-multiplication module. The sub-acquisition module is used to obtain the ratio of the aging factor to the baseline aging factor; the sub-multiplication module is used to multiply the ratio by the target baseline data to obtain the corrected target baseline data. This consideration of ratios allows for a more accurate determination of the corrected target baseline data.

[0119] In the embodiments of this application, the device further includes a second acquisition unit and a storage unit. The second acquisition unit is used to determine the target basic data corresponding to the conversion efficiency range, adaptively switch the current basic data to the target basic data, and after adjusting the original exhaust of the gas engine using the target basic data, acquire the new aging factor calculated after the current driving cycle meets the conversion efficiency calculation conditions of the three-way catalytic converter. The storage unit is used to store the new aging factor in the memory before the ECU is powered off. That is, after meeting the conversion efficiency calculation conditions of the three-way catalytic converter, a new aging factor is obtained to prepare for the calculation of the next driving cycle.

[0120] Specifically, the basic data includes at least one of the following: lambda closed-loop control window MAP, pedal demand MAP, ignition advance angle MAP, and demand EGR rate MAP. Of course, other data may also be included.

[0121] The gas emission control device includes a processor and a memory. The aforementioned first acquisition unit, determination unit, and processing unit are all stored as program units in the memory. The processor executes the program units stored in the memory to achieve the corresponding functions. All of the above modules are located in the same processor; alternatively, the modules may be located in different processors in any combination.

[0122] The processor contains a kernel, which retrieves the corresponding program unit from memory. One or more kernels can be configured. By adjusting kernel parameters, the same set of engine basic data can be used to match the three-way catalytic converter throughout its entire lifecycle. However, this approach cannot simultaneously address issues of economy, compliance, and power.

[0123] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0124] This invention provides a computer-readable storage medium including a stored program, wherein the program, when running, controls the device containing the computer-readable storage medium to execute a gas emission control method.

[0125] Specifically, gas engine emission control methods include:

[0126] Step S201: Obtain the conversion efficiency of the three-way catalytic converter of the gas engine in the previous driving cycle;

[0127] Step S202: Determine the conversion efficiency range of the three-way catalytic converter;

[0128] Step S203: Determine the target basic data corresponding to the conversion efficiency range, and adaptively switch the current basic data to the target basic data. The original exhaust of the gas engine is adjusted using the target basic data to satisfy one of the following: the exhaust of the gas engine meets the emission standards; while meeting the emission standards, the gas consumption of the current driving cycle is at least less than the preset gas consumption; while meeting the emission standards, the power of the gas engine is at least within the preset power range.

[0129] This invention provides an electronic device, including: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include methods for performing the gas engine emission control method in this application embodiment.

[0130] This invention provides a device including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of a gas emission control method. The device described herein can be a server, PC, PAD, mobile phone, etc.

[0131] Specifically, gas engine emission control methods include:

[0132] Step S201: Obtain the conversion efficiency of the three-way catalytic converter of the gas engine in the previous driving cycle;

[0133] Step S202: Determine the conversion efficiency range of the three-way catalytic converter;

[0134] Step S203: Determine the target basic data corresponding to the conversion efficiency range, and adaptively switch the current basic data to the target basic data. The original exhaust of the gas engine is adjusted using the target basic data to satisfy one of the following: the exhaust of the gas engine meets the emission standards; while meeting the emission standards, the gas consumption of the current driving cycle is at least less than the preset gas consumption; while meeting the emission standards, the power of the gas engine is at least within the preset power range.

[0135] This application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having at least the following method steps:

[0136] Step S201: Obtain the conversion efficiency of the three-way catalytic converter of the gas engine in the previous driving cycle;

[0137] Step S202: Determine the conversion efficiency range of the three-way catalytic converter;

[0138] Step S203: Determine the target basic data corresponding to the conversion efficiency range, and adaptively switch the current basic data to the target basic data. The original exhaust of the gas engine is adjusted using the target basic data to satisfy one of the following: the exhaust of the gas engine meets the emission standards; while meeting the emission standards, the gas consumption of the current driving cycle is at least less than the preset gas consumption; while meeting the emission standards, the power of the gas engine is at least within the preset power range.

[0139] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those described herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0140] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0141] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0142] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0143] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0144] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0145] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0146] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0147] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0148] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0149] 1) The gas engine emission control method of this application obtains the conversion efficiency of the three-way catalytic converter in the previous driving cycle, determines the conversion efficiency range of the three-way catalytic converter, determines the target basic data corresponding to the conversion efficiency range, and adaptively switches the current basic data to the target basic data. Furthermore, the original exhaust of the gas engine is adjusted using the target basic data. This achieves adaptive adjustment of the target basic data based on different conversion efficiencies, thereby adaptively adjusting the original exhaust of the entire gas engine to meet the requirements of economy, compliance, and power. This solves the problem that using the same set of engine basic data to meet the matching needs of the three-way catalytic converter throughout its entire life cycle cannot simultaneously achieve economy, compliance, and power.

[0150] 2) The gas engine emission control device of this application includes a first acquisition unit that acquires the conversion efficiency of the three-way catalytic converter in the previous driving cycle, a determination unit that determines the conversion efficiency range of the three-way catalytic converter, and a processing unit that determines the target basic data corresponding to the conversion efficiency range. The device adaptively switches the current basic data to the target basic data and adjusts the original exhaust of the gas engine using the target basic data. This achieves adaptive adjustment of the target basic data based on different conversion efficiencies, thereby adaptively adjusting the original exhaust of the entire gas engine to meet the requirements of economy, compliance, and power. This solves the problem that using the same set of engine basic data to meet the matching needs of the three-way catalytic converter throughout its entire life cycle cannot simultaneously achieve economy, compliance, and power.

[0151] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for controlling emissions from a gas engine, characterized in that, include: Obtain the conversion efficiency of the three-way catalytic converter in the gas engine during the previous driving cycle; Determine the conversion efficiency range of the three-way catalytic converter; Determine the target basic data corresponding to the conversion efficiency range, and adaptively switch the current basic data to the target basic data. Use the target basic data to adjust the original exhaust of the gas engine so as to satisfy one of the following: the exhaust of the gas engine meets the emission standards; while meeting the emission standards, at least the gas consumption of the current driving cycle is less than the preset gas consumption; while meeting the emission standards, at least the power of the gas engine is within the preset power range. The target basic data refers to the data affecting the original emissions of the gas engine. The original emissions are the raw emissions of the exhaust gas without purification by the three-way catalytic converter aftertreatment device, and the tail emissions are the final emissions of the exhaust gas after purification by the three-way catalytic converter aftertreatment device. Determine the target basic data corresponding to the conversion efficiency range, and adaptively switch the current basic data to the target basic data. Adjust the original exhaust of the gas engine using the target basic data to ensure that one of the following is met: the exhaust of the gas engine meets emission standards; while meeting the emission standards, the gas consumption of the current driving cycle is at least less than a preset gas consumption; while meeting the emission standards, the power of the gas engine is at least within a preset power range. This includes: when the conversion efficiency range is a first conversion rate range, switching the current basic data to a first set of target basic data, and using the first set of target basic data to control the original exhaust of the gas engine within the first original exhaust range, so that the exhaust of the gas engine meets the emission standards, while simultaneously ensuring that the gas consumption of the current driving cycle is less than the preset gas consumption, and satisfying the gas... The engine's power is within the preset power range; when the conversion efficiency range is the second conversion rate range, the current basic data is switched to the second set of target basic data, and the second set of target basic data is used to control the gas engine's exhaust within the second exhaust range, so that the gas engine's tail exhaust meets the emission standard and the gas engine's power is within the preset power range; when the conversion efficiency range is the third conversion rate range, the current basic data is switched to the third set of target basic data, and the third set of target basic data is used to control the gas engine's exhaust within the third exhaust range, so that the gas engine's tail exhaust first meets the emission standard, wherein the maximum value of the third exhaust range is less than the minimum value of the second exhaust range, and the maximum value of the second exhaust range is less than the minimum value of the first exhaust range; Adjusting the original exhaust of the gas engine using the target basic data includes: determining an aging factor corresponding to the conversion efficiency of the three-way catalytic converter; correcting the target basic data using the aging factor to obtain corrected target basic data; and adjusting the original exhaust of the gas engine using the corrected target basic data.

2. The method according to claim 1, characterized in that, Determining the conversion efficiency range of the three-way catalytic converter includes: When the conversion efficiency of the three-way catalytic converter is greater than or equal to the first conversion rate threshold, the conversion efficiency range in which the conversion efficiency is located is determined as the first conversion rate range, and the margin of the initial tail emission corresponding to the first conversion rate range that meets and is better than the emission standard is within the first margin range. When the conversion efficiency of the three-way catalytic converter is greater than or equal to the second conversion rate threshold and less than the first conversion rate threshold, the conversion efficiency range in which the conversion efficiency is located is determined as the second conversion rate range. The margin of the initial tail emission corresponding to the second conversion rate range that meets and is better than the emission standard is within the second margin range. The minimum margin of the first margin range is greater than the maximum margin of the second margin range. When the conversion efficiency of the three-way catalytic converter is less than the second conversion rate threshold, the conversion efficiency range in which the conversion efficiency is located is determined to be the third conversion rate range, and at least some of the emissions in the initial tail exhaust corresponding to the third conversion rate range do not meet the corresponding emission standards. Wherein, the initial tail row is the tail row that has not undergone adaptive adjustment, and the second conversion rate threshold is less than the first conversion rate threshold.

3. The method according to claim 1, characterized in that, Determining the aging factor corresponding to the conversion efficiency of the three-way catalytic converter includes: Determine the oxygen storage capacity of the three-way catalytic converter corresponding to its conversion efficiency; The aging factor is determined based on the ratio of the oxygen storage capacity of the three-way catalytic converter to the preset oxygen content.

4. The method according to claim 1, characterized in that, The target baseline data is corrected using the aging factor to obtain the corrected target baseline data, including: Obtain the ratio of the aging factor to the benchmark aging factor; The corrected target basic data is obtained by multiplying the ratio by the target basic data.

5. The method according to claim 1, characterized in that, After determining the target baseline data corresponding to the conversion efficiency range, adaptively switching the current baseline data to the target baseline data, and adjusting the original exhaust of the gas generator using the target baseline data, the method further includes: After obtaining the current driving cycle and meeting the conversion efficiency calculation conditions of the three-way catalytic converter, a new aging factor is calculated. The new aging factor is stored in memory before the ECU is powered off.

6. A gas engine emission control device, characterized in that, include: The first acquisition unit is used to acquire the conversion efficiency of the three-way catalytic converter of the gas engine in the previous driving cycle; A determining unit is used to determine the conversion efficiency range in which the three-way catalytic converter falls; The processing unit is used to determine the target basic data corresponding to the conversion efficiency range, and adaptively switch the current basic data to the target basic data, and use the target basic data to adjust the original exhaust of the gas engine so as to satisfy one of the following: the exhaust of the gas engine meets the emission standards, while meeting the emission standards, the gas consumption of the current driving cycle is less than the preset gas consumption, and while meeting the emission standards, the power of the gas engine is at least within the preset power range. The target basic data refers to the data affecting the original emissions of the gas engine. The original emissions are the raw emissions of the exhaust gas without purification by the three-way catalytic converter aftertreatment device, and the tail emissions are the final emissions of the exhaust gas after purification by the three-way catalytic converter aftertreatment device. The processing unit includes a first processing module, a second processing module, and a third processing module. The first processing module is used to switch the current basic data to a first set of target basic data when the conversion efficiency range is within a first conversion rate range, and uses the first set of target basic data to control the original exhaust of the gas engine within the first original exhaust range, so that the exhaust of the gas engine meets the emission standards while ensuring that the gas consumption of the current driving cycle is less than the preset gas consumption and that the power of the gas engine is within the preset power range. The second processing module is used to switch the current basic data to a second set of target basic data when the conversion efficiency range is within a second conversion rate range, and uses the first set of target basic data to control the original exhaust of the gas engine within the first original exhaust range, so that the exhaust of the gas engine meets the emission standards while ensuring that the gas consumption of the current driving cycle is less than the preset gas consumption and that the power of the gas engine is within the preset power range. The second set of target basic data is used to control the original exhaust of the gas engine within the second original exhaust range, so that the exhaust of the gas engine meets the emission standard and the power of the gas engine is within the preset power range; when the conversion efficiency range is the third conversion rate range, the third processing module switches the current basic data to the third set of target basic data, and uses the third set of target basic data to control the original exhaust of the gas engine within the third original exhaust range, so that the exhaust of the gas engine first meets the emission standard, wherein the maximum value of the third original exhaust range is less than the minimum value of the second original exhaust range, and the maximum value of the second original exhaust range is less than the minimum value of the first original exhaust range; The processing unit includes an adjustment module, which is used to adjust the original exhaust of the gas engine using target basic data. The adjustment module includes a determination submodule, a correction submodule, and an adjustment submodule. The determination submodule is used to determine the aging factor corresponding to the conversion efficiency of the three-way catalytic converter. The correction submodule is used to correct the target basic data using the aging factor to obtain the corrected target basic data. The adjustment submodule is used to adjust the original exhaust of the gas engine using the corrected target basic data.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the computer-readable storage medium to perform the gas engine emission control method according to any one of claims 1 to 5.

8. An electronic device, characterized in that, include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including methods for performing the gas engine emission control method according to any one of claims 1 to 5.

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