A fuel injection amount processing method, device and electronic equipment

Abstract

The application discloses a fuel injection amount processing method and device and electronic equipment, and relates to the field of vehicle exhaust treatment, and specifically discloses a fuel injection amount processing method, a device and electronic equipment, which comprises the following steps: when it is detected that the mass of particulate matter captured by a particulate filter of a target vehicle is not less than a preset mass, obtaining an initial fuel injection amount of a fuel injector of the target vehicle; calculating a target temperature rise value of the particulate filter according to the initial fuel injection amount of the fuel injector; obtaining an actual temperature rise value of the particulate filter; and adjusting the initial fuel injection amount of the fuel injector according to the actual temperature rise value of the particulate filter and the target temperature rise value of the particulate filter, so as to obtain an adjusted fuel injection amount of the fuel injector. Through the application, the problem that, in the related art, when a vehicle is subjected to DPF regeneration, the fuel injector of the vehicle sprays too much fuel, which leads to leakage of a large amount of HC at the tail end of the vehicle exhaust treatment and low utilization of the sprayed fuel is solved.

Description

Technical Field

[0001] This application relates to the field of engine technology, and more specifically, to a method, apparatus, and electronic device for processing fuel injection quantity. Background Technology

[0002] Currently, in the regeneration process of DPF (Diesel Particulate Filter), diesel fuel is typically injected via far-end injection. The diesel fuel is then burned and oxidized in the DOC (Diesel Oxide Catalyst), thereby increasing the DPF temperature. However, in these technologies, factors such as DOC efficiency cracking and inaccurate far-end injection volume often lead to excessive far-end injection, resulting in a large amount of HC (hydrocarbons) leaking from the aftertreatment outlet. In severe cases, white smoke may appear at the aftertreatment outlet, ultimately leading to low diesel fuel utilization.

[0003] There is currently no effective solution to the problem that when a vehicle undergoes DPF regeneration, the fuel injectors inject too much fuel, resulting in a large amount of HC leaking from the exhaust outlet of the vehicle's aftertreatment system and low utilization of the injected diesel fuel. Summary of the Invention

[0004] This invention provides a method, apparatus, and electronic device for processing fuel injection volume, in order to solve the problems in related technologies where excessive fuel injection occurs during DPF regeneration in vehicles, resulting in a large amount of HC leakage at the vehicle's aftertreatment tail outlet and low utilization rate of injected diesel fuel.

[0005] In a first aspect, this application provides a method for processing the amount of fuel injected, including:

[0006] When the mass of particulate matter captured by the particulate filter of the target vehicle is not less than a preset mass, the initial fuel injection quantity preset by the fuel injector of the target vehicle is obtained, wherein the particulate filter is used to capture particulate matter in the exhaust gas emitted by the target vehicle.

[0007] The target temperature rise of the particulate matter collector is calculated based on the initial fuel injection quantity preset by the injector.

[0008] Obtain the actual temperature rise value of the particulate matter collector;

[0009] Based on the actual temperature rise of the particulate matter collector and the target temperature rise of the particulate matter collector, the initial injection quantity of the injector is adjusted to obtain the adjusted injection quantity of the injector.

[0010] In one possible implementation, adjusting the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate filter to obtain the adjusted injection quantity of the injector includes:

[0011] The target coefficient is calculated by dividing the actual temperature rise of the particulate matter trap by the target temperature rise of the particulate matter trap.

[0012] Based on the target coefficient, the initial injection quantity of the injector is adjusted to obtain the adjusted injection quantity of the injector.

[0013] In one possible implementation, adjusting the initial injection quantity of the injector based on the target coefficient to obtain the adjusted injection quantity of the injector includes:

[0014] The target value is obtained by multiplying the target coefficient by the initial injection quantity preset by the injector.

[0015] Based on the target value, the adjusted fuel injection quantity of the injector is obtained.

[0016] In one possible implementation, calculating the target temperature rise of the particulate matter collector based on the initial injection quantity preset by the injector includes:

[0017] The volume value of the oxidation catalytic converter of the target vehicle, the intake air flow rate of the engine of the target vehicle, and the temperature value of the oxidation catalytic converter are obtained, wherein the oxidation catalytic converter is used to convert the gas in the exhaust gas emitted by the target vehicle.

[0018] The target temperature rise of the particulate matter trap is calculated based on the initial injection quantity preset by the injector, the volume value of the oxidation catalytic converter, the intake air flow rate of the engine, and the temperature value of the oxidation catalytic converter.

[0019] In one possible implementation, obtaining the actual temperature rise value of the particulate matter trap includes:

[0020] Obtain the temperature values ​​of the oxidation catalytic converter and the particulate matter collector;

[0021] Based on the temperature values ​​of the oxidation catalytic converter and the particulate matter collector, the actual temperature rise value of the particulate matter collector is obtained.

[0022] In one possible implementation, obtaining the temperature value of the oxidation catalytic converter includes:

[0023] Identify the temperature sensor installed on the exhaust pipe of the oxidation catalytic converter;

[0024] The temperature of the oxidation catalytic converter is obtained by measuring the exhaust temperature of the oxidation catalytic converter using the temperature sensor.

[0025] In one possible implementation, after adjusting the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate filter to obtain the adjusted injection quantity of the injector, the method further includes:

[0026] The injector is controlled to inject the target amount of fuel based on the adjusted fuel injection quantity.

[0027] Based on the target amount of fuel injected by the injector and the target gas generated in the oxidation catalytic converter, the target particulate matter in the particulate matter collector is eliminated to achieve the regeneration process of the particulate matter collector.

[0028] Secondly, this application also provides a fuel injection quantity processing device, comprising:

[0029] The first acquisition unit is used to acquire the initial fuel injection quantity preset by the fuel injector of the target vehicle when the mass of particulate matter captured by the particulate matter trap of the target vehicle is not less than a preset mass, wherein the particulate matter trap is used to capture particulate matter in the exhaust gas emitted by the target vehicle.

[0030] The first calculation unit is used to calculate the target temperature rise value of the particulate matter collector based on the initial injection quantity preset by the injector.

[0031] The second acquisition unit is used to acquire the actual temperature rise value of the particulate matter collector.

[0032] The first adjustment unit is used to adjust the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate matter collector, so as to obtain the adjusted injection quantity of the injector.

[0033] In one possible implementation, the first adjustment unit includes: a first calculation module, configured to divide the actual temperature rise of the particulate filter by the target temperature rise of the particulate filter to calculate a target coefficient; and a first adjustment module, configured to adjust the initial injection quantity of the injector preset according to the target coefficient to obtain the adjusted injection quantity of the injector.

[0034] In one possible implementation, the first adjustment module includes: a first determining submodule, configured to multiply the target coefficient and the initial injection quantity preset by the injector to obtain a target value; and a second determining submodule, configured to obtain the adjusted injection quantity of the injector based on the target value.

[0035] In one possible implementation, the first calculation unit includes: a first acquisition module, configured to acquire the volume value of the oxidation catalytic converter of the target vehicle, the intake air flow rate of the engine of the target vehicle, and the temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to convert the gas in the exhaust gas emitted by the target vehicle; and a second calculation module, configured to calculate the target temperature rise value of the particulate matter trap based on the initial injection quantity preset by the injector, the volume value of the oxidation catalytic converter, the intake air flow rate of the engine, and the temperature value of the oxidation catalytic converter.

[0036] In one possible implementation, the second acquisition unit includes: a second acquisition module for acquiring the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter collector; and a third acquisition module for acquiring the actual temperature rise value of the particulate matter collector based on the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter collector.

[0037] In one possible implementation, the second acquisition module includes: a third determining submodule for determining a temperature sensor installed on the exhaust pipe of the oxidation catalytic converter; and a fourth determining submodule for measuring the exhaust temperature of the oxidation catalytic converter using the temperature sensor to obtain the temperature value of the oxidation catalytic converter.

[0038] In one possible implementation, the device further includes: a first control unit, configured to adjust the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate matter collector, and after obtaining the adjusted injection quantity of the injector, control the injector to inject a target amount of fuel according to the adjusted injection quantity of the injector; and a first processing unit, configured to eliminate target particulate matter in the particulate matter collector based on the target amount of fuel injected by the injector and the target gas generated in the oxidation catalytic converter, so as to realize the regeneration process of the particulate matter collector.

[0039] Thirdly, this application also provides an electronic device, including one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement the fuel injection quantity processing method described in any one of the first aspects.

[0040] The beneficial effects of this invention are as follows:

[0041] This application provides a method, apparatus, and electronic device for processing fuel injection quantity. When it is detected that the mass of particulate matter captured by the particulate filter of a target vehicle is not less than a preset mass, the method obtains the initial fuel injection quantity preset by the fuel injector of the target vehicle. The particulate filter is used to capture particulate matter in the exhaust gas emitted by the target vehicle. Based on the initial fuel injection quantity preset by the fuel injector, the method calculates the target temperature rise value of the particulate filter. The method obtains the actual temperature rise value of the particulate filter. Based on the actual temperature rise value and the target temperature rise value of the particulate filter, the method adjusts the initial fuel injection quantity preset by the fuel injector to obtain the adjusted fuel injection quantity. This solves the problem in related technologies that when a vehicle undergoes DPF regeneration, the fuel injector of the vehicle injects too much fuel, resulting in a large amount of HC leakage at the tail end outlet of the vehicle's aftertreatment system and low utilization rate of the injected diesel fuel. By calculating the maximum DPF temperature rise (target temperature rise) under the current aftertreatment volume and engine operating conditions based on the fuel quantity injected by the far-end injection (i.e., the initial injection quantity), the injection quantity of the far-end injection can be adjusted according to the actual DPF temperature rise (i.e., the actual temperature rise) and the calculated theoretical temperature rise (i.e., the target temperature rise). This avoids excessive injection quantity of the far-end injection during DPF regeneration, which could lead to a large amount of HC leakage at the aftertreatment tail outlet. This achieves the effect of reducing HC leakage at the aftertreatment tail outlet and improving the utilization rate of diesel injection. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A schematic flowchart illustrating a method for processing fuel injection quantity provided in an embodiment of this application;

[0044] Figure 2 A schematic flowchart illustrating another method for processing fuel injection quantity provided in an embodiment of this application;

[0045] Figure 3 This is a schematic diagram of the structure of a fuel injection quantity processing device provided in an embodiment of this application;

[0046] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0048] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0049] For ease of description, the following explains some of the nouns or terms used in the embodiments of this application:

[0050] DOC: Oxidation Catalytic Converter, installed before the DPF (particulate filter), is used to oxidize NO (nitric oxide) in the exhaust gas to NO2 (nitric oxide), while increasing the exhaust gas temperature and assisting the normal operation of the DPF (particulate filter) and SCR (Selective Catalytic Reduction) catalyst.

[0051] DPF: Particulate Filter, used to capture particulate matter in exhaust gas. When the mass of captured particulate matter reaches a certain level, passive or active regeneration is required to restore the DPF's ability to capture particulate matter.

[0052] DOC front temperature sensor (T) DOC ): Located on the exhaust pipe before the DOC (Diesel Oxidation Catalytic Converter), it measures the exhaust temperature before the DOC.

[0053] DPF front temperature sensor (T) DPF ): Located on the exhaust pipe before the DPF (particulate filter), the exhaust temperature before the DPF is measured. This temperature is used to estimate the amount of carbon deposits in the model and the amount of diesel fuel injected during regeneration.

[0054] DPF regeneration: Utilizing the principle of the reaction between NO2 (nitrogen dioxide) and C (carbon) generated in the DOC (oxidation catalytic converter), the C (carbon) in the DPF (particulate filter) is eliminated.

[0055] The present invention will now be described in conjunction with preferred implementation steps. Figure 1 This is a flowchart of a fuel injection quantity processing method provided in an embodiment of this application, such as... Figure 1 As shown, the method includes the following steps:

[0056] Step S101: When it is detected that the mass of particulate matter captured by the particulate matter filter of the target vehicle is not less than the preset mass, the initial injection quantity of the fuel injector of the target vehicle is obtained in advance. The particulate matter filter is used to capture particulate matter in the exhaust gas emitted by the target vehicle.

[0057] For example, during the DPF (particulate filter) regeneration process, that is, when the particulate matter mass of the DPF (particulate filter) reaches a certain level, the amount of fuel injected by the far-back injector is obtained (corresponding to the initial amount of fuel injected above).

[0058] Step S102: Calculate the target temperature rise value of the particulate matter collector based on the initial injection quantity preset by the injector.

[0059] For example, based on the amount of fuel injected far behind the injector during the regeneration process (corresponding to the initial amount of fuel injected above), the maximum DPF temperature rise that can be improved under the current aftertreatment volume and engine operating conditions (corresponding to the target temperature rise value above) can be calculated.

[0060] Step S103: Obtain the actual temperature rise value of the particulate matter collector.

[0061] For example, calculate the actual temperature rise of the DPF (particulate filter) (corresponding to the actual temperature rise mentioned above).

[0062] Step S104: Based on the actual temperature rise value and the target temperature rise value of the particulate matter collector, adjust the initial injection quantity of the injector to obtain the adjusted injection quantity of the injector.

[0063] For example, the fuel injection quantity of the far-back injection of the fuel injector is adjusted based on the actual temperature rise value of the DPF (corresponding to the actual temperature rise value mentioned above) and the calculated theoretical temperature rise value (corresponding to the target temperature rise value mentioned above).

[0064] Through the steps S101 to S104 described above, the maximum DPF (particulate filter) temperature rise (i.e., target temperature rise) that can be improved under the current aftertreatment volume and engine operating conditions is calculated based on the fuel injection quantity of the far-rear injection of the injector (i.e., the initial fuel injection quantity). Then, the fuel injection quantity of the far-rear injection of the injector is adjusted according to the actual temperature rise of the DPF (particulate filter) (i.e., the actual temperature rise) and the calculated theoretical temperature rise (i.e., the target temperature rise). This can avoid the situation where excessive diesel fuel is injected by the far-rear injection of the injector during the DPF regeneration process, which would lead to a large amount of HC leakage at the tail end of the aftertreatment, thereby achieving the effect of improving the utilization rate of diesel fuel.

[0065] Optionally, in the fuel injection quantity processing method provided in this application embodiment, calculating the target temperature rise value of the particulate matter filter based on the initial fuel injection quantity preset by the fuel injector includes: obtaining the volume value of the oxidation catalytic converter of the target vehicle, the intake air flow value of the engine of the target vehicle, and the temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to convert the gas in the exhaust gas emitted by the target vehicle; and calculating the target temperature rise value of the particulate matter filter based on the initial fuel injection quantity preset by the fuel injector, the volume value of the oxidation catalytic converter, the intake air flow value of the engine, and the temperature value of the oxidation catalytic converter.

[0066] For example, based on the injection quantity q of the injector during the regeneration process. 初始 The maximum temperature increase ΔT is calculated from the parameters of (corresponding to the initial fuel injection quantity), DOC volume (corresponding to the volume value of the oxidation catalytic converter), engine intake airflow (corresponding to the engine intake airflow value), and DOC inlet temperature (corresponding to the temperature value of the oxidation catalytic converter). 计算值 (Corresponding to the target temperature rise value mentioned above.)

[0067] Using the above method, the maximum temperature rise of the particulate matter collector can be calculated quickly and accurately.

[0068] Optionally, in the fuel injection quantity processing method provided in this application embodiment, obtaining the actual temperature rise value of the particulate matter filter includes: obtaining the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter filter; and obtaining the actual temperature rise value of the particulate matter filter based on the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter filter.

[0069] For example, the actual temperature rise ΔT is calculated based on the actual DOC inlet temperature (corresponding to the temperature of the oxidation catalytic converter mentioned above) and the DPF inlet temperature (corresponding to the temperature of the particulate matter trap mentioned above). 实际值 (Corresponding to the actual temperature rise value mentioned above.)

[0070] Using the above method, the actual temperature rise of the particulate matter collector can be calculated quickly and accurately.

[0071] Optionally, in the fuel injection quantity processing method provided in the embodiments of this application, obtaining the temperature value of the oxidation catalytic converter includes: determining a temperature sensor installed on the exhaust pipe of the oxidation catalytic converter; measuring the exhaust temperature of the oxidation catalytic converter using the temperature sensor to obtain the temperature value of the oxidation catalytic converter.

[0072] For example, a temperature sensor (T) before the DOC can be installed on the exhaust pipe before the DOC. DOC ), and utilize the DOC pre-temperature sensor (T DOC ) Measure the exhaust temperature before DOC (corresponding to the temperature value of the oxidation catalytic converter mentioned above).

[0073] In summary, the temperature value in front of the oxidation catalytic converter can be conveniently measured by using a temperature sensor.

[0074] Optionally, in the fuel injection quantity processing method provided in this application embodiment, adjusting the preset initial fuel injection quantity of the fuel injector based on the actual temperature rise value and the target temperature rise value of the particulate matter filter to obtain the adjusted fuel injection quantity includes: dividing the actual temperature rise value of the particulate matter filter by the target temperature rise value of the particulate matter filter to calculate the target coefficient; and adjusting the preset initial fuel injection quantity of the fuel injector according to the target coefficient to obtain the adjusted fuel injection quantity.

[0075] For example, the utilization coefficient (corresponding to the target coefficient) is calculated based on the actual temperature rise (corresponding to the actual temperature rise value mentioned above) and the calculated value (corresponding to the target temperature rise value mentioned above), and then the fuel injection quantity of the far-rear injection (corresponding to the initial fuel injection quantity mentioned above) is adjusted based on the utilization coefficient (corresponding to the target coefficient mentioned above).

[0076] The above method allows for the rapid and accurate calculation of the fuel injection quantity utilization coefficient of the injector.

[0077] Optionally, in the fuel injection quantity processing method provided in this application embodiment, adjusting the initial fuel injection quantity preset by the injector according to the target coefficient to obtain the adjusted fuel injection quantity includes: multiplying the target coefficient and the initial fuel injection quantity preset by the injector to obtain a target value; and obtaining the adjusted fuel injection quantity based on the target value.

[0078] For example, based on the actual temperature rise value ΔT 实际值 (corresponding to the actual temperature rise value mentioned above) and the maximum temperature rise value ΔT 计算值 (Corresponding to the target temperature rise value mentioned above) Calculate the utilization factor fac = ΔT 实际值 / ΔT 计算值Based on this utilization coefficient (corresponding to the target coefficient mentioned above), the fuel injection quantity q of the far-end injection is adjusted. 调整后 =fac*q 初始 .

[0079] The above-mentioned solution can improve the utilization rate of diesel fuel injected from the far-end and rear-end injection points.

[0080] Optionally, in the fuel injection quantity processing method provided in the embodiments of this application, after adjusting the initial fuel injection quantity preset by the fuel injector based on the actual temperature rise value and the target temperature rise value of the particulate matter filter to obtain the adjusted fuel injection quantity, the method further includes: controlling the fuel injector to inject a target fuel quantity according to the adjusted fuel injection quantity; and eliminating the target particulate matter in the particulate matter filter based on the target fuel quantity injected by the fuel injector and the target gas generated in the oxidation catalytic converter, so as to realize the regeneration process of the particulate matter filter.

[0081] For example, the adjusted fuel injection quantity q can be controlled by the far-back injection of the injector. 调整后 Then, by utilizing the principle of the reaction between NO2 (nitrogen dioxide) (corresponding to the target gas mentioned above) and C (carbon) generated in the DOC (oxidation catalytic converter), the C (carbon) (corresponding to the target particulate matter mentioned above) in the DPF (particulate matter filter) is eliminated, thereby completing the DPF regeneration process.

[0082] The above method can quickly and accurately eliminate carbon particles in the particulate matter collector.

[0083] In this embodiment, the total heat and utilization efficiency of the fuel injection quantity at the far-rear injection point of the injector are calculated, and the maximum DPF temperature rise that can be improved under the current aftertreatment volume and engine operating conditions is estimated. Then, the utilization coefficient of the far-rear injection quantity is calculated based on the actual DPF temperature rise and the calculated theoretical temperature rise. The far-rear injection quantity of the injector is adjusted according to the utilization coefficient to achieve the effect of reducing HC at the tail end of the aftertreatment.

[0084] For example, Figure 2 This is a flowchart of an optional fuel injection quantity processing method provided according to an embodiment of this application, which specifically includes the following steps:

[0085] S201, Collect the fuel injection quantity q for remote and rear-spraying. 初始 ;

[0086] S202, based on the fuel injection quantity q of the rear-spray system. 初始 Calculate the theoretical maximum temperature rise ΔT based on the DOC volume, engine intake airflow, and DOC inlet temperature. 计算值 ;

[0087] S203. Collect the actual DOC inlet temperature and DPF inlet temperature;

[0088] S204. Based on the actual DOC inlet temperature and DPF inlet temperature, calculate the actual temperature rise ΔT. 实际值 ;

[0089] S205, based on the actual temperature rise value ΔT 实际值 and the highest temperature rise value ΔT 计算值 Calculate the utilization factor fac;

[0090] S206, Based on the utilization coefficient fac and the fuel injection quantity q for far-to-back injection. 初始 Calculate the adjusted fuel injection quantity q for the far-injector. 调整后 .

[0091] Figure 2 In the process of regeneration, the amount of fuel injected q from the injector's far-back injection point is... 初始 The maximum temperature rise ΔT is calculated from the DOC volume, engine intake airflow, and DOC inlet temperature parameters. 计算值 Then, the actual temperature rise ΔT is calculated based on the actual DOC inlet temperature and DPF inlet temperature. 实际值 The utilization factor fac = ΔT is calculated based on the actual and calculated temperature rise values. 实际值 / ΔT 计算值 Based on this utilization coefficient, the fuel injection quantity q of the far-end injection is adjusted. 调整后 =fac*q 初始 This achieves the effect of improving the utilization rate of diesel fuel injected from the far-end and rear-end injection points.

[0092] The method provided in this embodiment can avoid excessive diesel injection due to factors such as DOC efficiency cracking and inaccurate diesel quantity injected by the far-to-back injection of the fuel injector, which would lead to a large amount of HC leakage at the tail end outlet of the aftertreatment system, thereby improving the utilization efficiency of the diesel injected by the far-to-back injection.

[0093] For example, based on the injection quantity of the far-injection injector, the maximum DPF temperature rise that can be improved under the current aftertreatment volume and engine operating conditions can be calculated. Then, based on the actual DPF temperature rise and the calculated theoretical temperature rise, the utilization coefficient of the far-injection injection quantity can be calculated. Based on this utilization coefficient, the injection quantity of the far-injection injector can be adjusted to achieve the effect of reducing HC at the tail end of the aftertreatment.

[0094] In summary, the fuel injection quantity processing method provided in this application embodiment obtains the initial fuel injection quantity preset by the fuel injector of the target vehicle when the mass of particulate matter captured by the particulate filter of the target vehicle is not less than a preset mass. The particulate filter is used to capture particulate matter in the exhaust gas emitted by the target vehicle. Based on the preset initial fuel injection quantity, the target temperature rise value of the particulate filter is calculated. The actual temperature rise value of the particulate filter is obtained. Based on the actual temperature rise value and the target temperature rise value of the particulate filter, the preset initial fuel injection quantity of the fuel injector is adjusted to obtain the adjusted fuel injection quantity. This solves the problem in related technologies where, during DPF regeneration, the fuel injector of the vehicle injects excessive fuel, leading to a large amount of HC leakage at the tailgate outlet of the vehicle's aftertreatment system, resulting in low utilization of the injected fuel. By calculating the maximum DPF temperature rise (target temperature rise) under the current aftertreatment volume and engine operating conditions based on the fuel quantity injected by the far-end injection (i.e., the initial injection quantity), the injection quantity of the far-end injection can be adjusted according to the actual DPF temperature rise (i.e., the actual temperature rise) and the calculated theoretical temperature rise (i.e., the target temperature rise). This avoids excessive injection quantity of the far-end injection during DPF regeneration, which could lead to a large amount of HC leakage at the aftertreatment tail outlet. This achieves the effect of reducing HC leakage at the aftertreatment tail outlet and improving the utilization rate of diesel injection.

[0095] 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, and 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.

[0096] This application also provides a fuel injection quantity processing device. It should be noted that the fuel injection quantity processing device of this application can be used to execute the fuel injection quantity processing method provided in this application. The fuel injection quantity processing device provided in this application will be described below.

[0097] Figure 3 This is a schematic diagram of a fuel injection quantity processing device provided according to an embodiment of this application. Figure 3 As shown, the device includes: a first acquisition unit 301, a first calculation unit 302, a second acquisition unit 303, and a first adjustment unit 304.

[0098] Specifically, the first acquisition unit 301 is used to acquire the initial fuel injection quantity preset by the fuel injector of the target vehicle when it is detected that the mass of particulate matter captured by the particulate matter trap of the target vehicle is not less than a preset mass, wherein the particulate matter trap is used to capture particulate matter in the exhaust gas emitted by the target vehicle.

[0099] The first calculation unit 302 is used to calculate the target temperature rise value of the particulate matter collector based on the initial injection quantity preset by the injector.

[0100] The second acquisition unit 303 is used to acquire the actual temperature rise value of the particulate matter collector;

[0101] The first adjustment unit 304 is used to adjust the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate matter collector, so as to obtain the adjusted injection quantity of the injector.

[0102] In summary, the fuel injection quantity processing device provided in this application embodiment, through the first acquisition unit 301, when it detects that the mass of particulate matter captured by the particulate matter filter of the target vehicle is not less than a preset mass, acquires the initial fuel injection quantity preset by the fuel injector of the target vehicle, wherein the particulate matter filter is used to capture particulate matter in the exhaust gas emitted by the target vehicle; the first calculation unit 302 calculates the target temperature rise value of the particulate matter filter based on the initial fuel injection quantity preset by the fuel injector; the second acquisition unit 303 acquires the actual temperature rise value of the particulate matter filter; the first adjustment unit 304 adjusts the initial fuel injection quantity preset by the fuel injector based on the actual temperature rise value and the target temperature rise value of the particulate matter filter, to obtain the adjusted fuel injection quantity of the fuel injector. This solves the problem in the related technology that when the vehicle is undergoing DPF regeneration, the fuel injector of the vehicle will inject too much fuel, which will lead to a large amount of HC leakage at the tail end outlet of the vehicle's aftertreatment system, resulting in a low utilization rate of the injected fuel. By calculating the maximum DPF temperature rise (target temperature rise) under the current aftertreatment volume and engine operating conditions based on the fuel quantity injected by the far-end injection (i.e., the initial injection quantity), the injection quantity of the far-end injection can be adjusted according to the actual DPF temperature rise (i.e., the actual temperature rise) and the calculated theoretical temperature rise (i.e., the target temperature rise). This avoids excessive injection quantity of the far-end injection during DPF regeneration, which could lead to a large amount of HC leakage at the aftertreatment tail outlet. This achieves the effect of reducing HC leakage at the aftertreatment tail outlet and improving the utilization rate of diesel injection.

[0103] Optionally, in the fuel injection quantity processing device provided in the embodiments of this application, the first adjustment unit includes: a first calculation module, used to divide the actual temperature rise value of the particulate matter collector by the target temperature rise value of the particulate matter collector to calculate the target coefficient; and a first adjustment module, used to adjust the initial fuel injection quantity preset by the fuel injector according to the target coefficient to obtain the adjusted fuel injection quantity of the fuel injector.

[0104] Optionally, in the fuel injection quantity processing device provided in the embodiments of this application, the first adjustment module includes: a first determining submodule, used to multiply the target coefficient and the initial fuel injection quantity preset by the fuel injector to obtain a target value; and a second determining submodule, used to obtain the adjusted fuel injection quantity of the fuel injector based on the target value.

[0105] Optionally, in the fuel injection quantity processing device provided in this application embodiment, the first calculation unit includes: a first acquisition module, used to acquire the volume value of the oxidation catalytic converter of the target vehicle, the intake air flow value of the engine of the target vehicle, and the temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to convert the gas in the exhaust gas emitted by the target vehicle; and a second calculation module, used to calculate the target temperature rise value of the particulate matter filter based on the initial fuel injection quantity preset by the fuel injector, the volume value of the oxidation catalytic converter, the intake air flow value of the engine, and the temperature value of the oxidation catalytic converter.

[0106] Optionally, in the fuel injection quantity processing device provided in the embodiments of this application, the second acquisition unit includes: a second acquisition module, used to acquire the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter collector; and a third acquisition module, used to acquire the actual temperature rise value of the particulate matter collector based on the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter collector.

[0107] Optionally, in the fuel injection quantity processing device provided in the embodiments of this application, the second acquisition module includes: a third determining submodule, used to determine the temperature sensor installed on the exhaust pipe of the oxidation catalytic converter; and a fourth determining submodule, used to measure the exhaust temperature of the oxidation catalytic converter using the temperature sensor to obtain the temperature value of the oxidation catalytic converter.

[0108] Optionally, in the fuel injection quantity processing device provided in the embodiments of this application, the device further includes: a first control unit, used to adjust the initial fuel injection quantity preset by the fuel injector based on the actual temperature rise value and the target temperature rise value of the particulate matter collector, and after obtaining the adjusted fuel injection quantity, control the fuel injector to inject the target fuel quantity according to the adjusted fuel injection quantity; and a first processing unit, used to eliminate the target particulate matter in the particulate matter collector based on the target fuel quantity injected by the fuel injector and the target gas generated in the oxidation catalytic converter, so as to realize the regeneration process of the particulate matter collector.

[0109] The fuel injection quantity processing device includes a processor and a memory. The first acquisition unit 301, the first calculation unit 302, the second acquisition unit 303, and the first adjustment unit 304 mentioned above are all stored in the memory as program units. The processor executes the program units stored in the memory to realize the corresponding functions.

[0110] The processor contains a kernel, which retrieves the corresponding program units from memory. One or more kernels can be configured, and the utilization rate of diesel injection can be improved by adjusting kernel parameters.

[0111] 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.

[0112] This invention provides a computer-readable storage medium storing a program thereon, which, when executed by a processor, implements a method for processing the amount of fuel injection.

[0113] This invention provides a processor for running a program, wherein the program executes a method for processing the amount of fuel injection.

[0114] like Figure 4 As shown, this embodiment of the invention provides an electronic device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it performs the following steps: when the mass of particulate matter captured by the particulate matter filter of the target vehicle is detected to be not less than a preset mass, the initial injection quantity of the fuel injector of the target vehicle is obtained, wherein the particulate matter filter is used to capture particulate matter in the exhaust gas emitted by the target vehicle; based on the initial injection quantity of the fuel injector, the target temperature rise value of the particulate matter filter is calculated; the actual temperature rise value of the particulate matter filter is obtained; based on the actual temperature rise value and the target temperature rise value of the particulate matter filter, the initial injection quantity of the fuel injector is adjusted to obtain the adjusted injection quantity of the fuel injector.

[0115] When the processor executes the program, it also performs the following steps: Based on the actual temperature rise value and the target temperature rise value of the particulate filter, the initial injection quantity of the injector is adjusted to obtain the adjusted injection quantity of the injector, including: dividing the actual temperature rise value of the particulate filter by the target temperature rise value of the particulate filter to calculate the target coefficient; and adjusting the initial injection quantity of the injector according to the target coefficient to obtain the adjusted injection quantity of the injector.

[0116] When the processor executes the program, it also performs the following steps: adjusting the initial injection quantity of the injector according to the target coefficient to obtain the adjusted injection quantity of the injector, including: multiplying the target coefficient and the initial injection quantity of the injector to obtain the target value; and obtaining the adjusted injection quantity of the injector according to the target value.

[0117] The processor also performs the following steps when executing the program: Calculating the target temperature rise value of the particulate filter based on the initial injection quantity preset by the injector, including: obtaining the volume value of the oxidation catalytic converter of the target vehicle, the intake air flow value of the engine of the target vehicle, and the temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to convert the gas in the exhaust gas emitted by the target vehicle; and calculating the target temperature rise value of the particulate filter based on the initial injection quantity preset by the injector, the volume value of the oxidation catalytic converter, the intake air flow value of the engine, and the temperature value of the oxidation catalytic converter.

[0118] The processor also performs the following steps when executing the program: obtaining the actual temperature rise value of the particulate matter trap includes: obtaining the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter trap; and obtaining the actual temperature rise value of the particulate matter trap based on the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter trap.

[0119] When the processor executes the program, it also performs the following steps: obtaining the temperature value of the oxidation catalytic converter includes: determining the temperature sensor installed on the exhaust pipe of the oxidation catalytic converter; using the temperature sensor to measure the exhaust temperature of the oxidation catalytic converter, and obtaining the temperature value of the oxidation catalytic converter.

[0120] When the processor executes the program, it also performs the following steps: after adjusting the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate matter filter, and obtaining the adjusted injection quantity of the injector, it further includes: controlling the injector to inject the target amount of fuel according to the adjusted injection quantity of the injector; and eliminating the target particulate matter in the particulate matter filter based on the target amount of fuel injected by the injector and the target gas generated in the oxidation catalytic converter, so as to realize the regeneration process of the particulate matter filter.

[0121] The devices mentioned in this article can be servers, PCs, tablets, mobile phones, etc.

[0122] This application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having the following method steps: when it is detected that the mass of particulate matter captured by the particulate matter filter of the target vehicle is not less than a preset mass, obtaining the initial fuel injection quantity preset by the fuel injector of the target vehicle, wherein the particulate matter filter is used to capture particulate matter in the exhaust gas emitted by the target vehicle; calculating the target temperature rise value of the particulate matter filter based on the preset initial fuel injection quantity of the fuel injector; obtaining the actual temperature rise value of the particulate matter filter; adjusting the preset initial fuel injection quantity of the fuel injector based on the actual temperature rise value and the target temperature rise value of the particulate matter filter, to obtain the adjusted fuel injection quantity of the fuel injector.

[0123] When executed on a data processing device, it is also suitable to execute an initialization program with the following steps: based on the actual temperature rise value and the target temperature rise value of the particulate filter, adjust the preset initial injection quantity of the injector to obtain the adjusted injection quantity of the injector, including: dividing the actual temperature rise value of the particulate filter by the target temperature rise value of the particulate filter to calculate the target coefficient; and adjusting the preset initial injection quantity of the injector according to the target coefficient to obtain the adjusted injection quantity of the injector.

[0124] When executed on a data processing device, it is also suitable to execute an initialization program with the following steps: adjusting the initial injection quantity of the injector according to the target coefficient to obtain the adjusted injection quantity of the injector, including: multiplying the target coefficient and the initial injection quantity of the injector according to the target coefficient to obtain the target value; and obtaining the adjusted injection quantity of the injector according to the target value.

[0125] When executed on a data processing device, it is also suitable to execute an initialization program with the following steps: calculating the target temperature rise value of the particulate filter based on the initial injection quantity preset by the injector, including: obtaining the volume value of the oxidation catalytic converter of the target vehicle, the intake air flow value of the engine of the target vehicle, and the temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to convert the gas in the exhaust gas emitted by the target vehicle; and calculating the target temperature rise value of the particulate filter based on the initial injection quantity preset by the injector, the volume value of the oxidation catalytic converter, the intake air flow value of the engine, and the temperature value of the oxidation catalytic converter.

[0126] When executed on a data processing device, it is also suitable to execute an initialization program with the following method steps: obtaining the actual temperature rise value of the particulate matter trap, including: obtaining the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter trap; and obtaining the actual temperature rise value of the particulate matter trap based on the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter trap.

[0127] When executed on a data processing device, it is also suitable to execute an initialization program with the following method steps: obtaining the temperature value of the oxidation catalytic converter includes: determining the temperature sensor installed on the exhaust pipe of the oxidation catalytic converter; measuring the exhaust temperature of the oxidation catalytic converter using the temperature sensor to obtain the temperature value of the oxidation catalytic converter.

[0128] When executed on a data processing device, it is also suitable to execute an initialization program with the following steps: after adjusting the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate matter filter to obtain the adjusted injection quantity of the injector, it further includes: controlling the injector to inject the target amount of fuel according to the adjusted injection quantity of the injector; and eliminating the target particulate matter in the particulate matter filter based on the target amount of fuel injected by the injector and the target gas generated in the oxidation catalytic converter to realize the regeneration process of the particulate matter filter.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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 1The steps of the function specified in one or more boxes.

[0133] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0134] 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.

[0135] 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 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.

[0136] 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.

[0137] 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.

[0138] The above are merely embodiments of this application and are not intended to limit the scope of 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 scope of the claims of this application.

Claims

1. A method for processing fuel injection quantity, characterized in that, include: When the mass of particulate matter captured by the particulate filter of the target vehicle is not less than a preset mass, the initial fuel injection quantity preset by the fuel injector of the target vehicle is obtained, wherein the particulate filter is used to capture particulate matter in the exhaust gas emitted by the target vehicle. The target temperature rise of the particulate matter collector is calculated based on the initial fuel injection quantity preset by the injector. Obtain the actual temperature rise value of the particulate matter collector; Based on the actual temperature rise value of the particulate matter collector and the target temperature rise value of the particulate matter collector, the initial injection quantity of the injector is adjusted to obtain the adjusted injection quantity of the injector. The step of calculating the target temperature rise of the particulate matter collector based on the initial injection quantity preset by the injector includes: The volume value of the oxidation catalytic converter of the target vehicle, the intake air flow rate of the engine of the target vehicle, and the temperature value of the oxidation catalytic converter are obtained, wherein the oxidation catalytic converter is used to convert the gas in the exhaust gas emitted by the target vehicle. The target temperature rise of the particulate matter filter is calculated based on the initial injection quantity preset by the injector, the volume value of the oxidation catalytic converter, the intake air flow rate of the engine, and the temperature value of the oxidation catalytic converter. After adjusting the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate filter, and obtaining the adjusted injection quantity of the injector, the method further includes: The injector is controlled to inject the target amount of fuel based on the adjusted fuel injection quantity. Based on the target amount of fuel injected by the injector and the target gas generated in the oxidation catalytic converter, the target particulate matter in the particulate matter collector is eliminated to achieve the regeneration process of the particulate matter collector.

2. The method according to claim 1, characterized in that, The step of adjusting the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate filter to obtain the adjusted injection quantity of the injector includes: The target coefficient is calculated by dividing the actual temperature rise of the particulate matter trap by the target temperature rise of the particulate matter trap. Based on the target coefficient, the initial injection quantity of the injector is adjusted to obtain the adjusted injection quantity of the injector.

3. The method according to claim 2, characterized in that, The step of adjusting the initial injection quantity of the injector according to the target coefficient to obtain the adjusted injection quantity of the injector includes: The target value is obtained by multiplying the target coefficient by the initial injection quantity preset by the injector. Based on the target value, the adjusted fuel injection quantity of the injector is obtained.

4. The method according to claim 1, characterized in that, The process of obtaining the actual temperature rise value of the particulate matter trap includes: Obtain the temperature values ​​of the oxidation catalytic converter and the particulate matter collector; Based on the temperature values ​​of the oxidation catalytic converter and the particulate matter collector, the actual temperature rise value of the particulate matter collector is obtained.

5. The method according to claim 4, characterized in that, The process of obtaining the temperature value of the oxidation catalytic converter includes: Identify the temperature sensor installed on the exhaust pipe of the oxidation catalytic converter; The temperature of the oxidation catalytic converter is obtained by measuring the exhaust temperature of the oxidation catalytic converter using the temperature sensor.

6. A device for processing fuel injection quantity, characterized in that, include: The first acquisition unit is used to acquire the initial fuel injection quantity preset by the fuel injector of the target vehicle when the mass of particulate matter captured by the particulate matter trap of the target vehicle is not less than a preset mass, wherein the particulate matter trap is used to capture particulate matter in the exhaust gas emitted by the target vehicle. The first calculation unit is used to calculate the target temperature rise value of the particulate matter collector based on the initial injection quantity preset by the injector. The second acquisition unit is used to acquire the actual temperature rise value of the particulate matter collector. The first adjustment unit is used to adjust the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate matter collector, so as to obtain the adjusted injection quantity of the injector. The first computing unit includes: The first acquisition module is used to acquire the volume value of the oxidation catalytic converter of the target vehicle, the intake air flow value of the engine of the target vehicle, and the temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to convert the gas in the exhaust gas emitted by the target vehicle. The second calculation module is used to calculate the target temperature rise value of the particulate matter filter based on the initial injection quantity preset by the injector, the volume value of the oxidation catalytic converter, the intake air flow value of the engine, and the temperature value of the oxidation catalytic converter. The device further includes: The first control unit is used to adjust the initial injection quantity of the injector based on the actual temperature rise value and the target temperature rise value of the particulate filter, and after obtaining the adjusted injection quantity of the injector, control the injector to inject the target amount of fuel according to the adjusted injection quantity of the injector. The first processing unit is used to eliminate target particulate matter in the particulate matter collector based on the target amount of fuel injected by the fuel injector and the target gas generated in the oxidation catalytic converter, so as to realize the regeneration process of the particulate matter collector.

7. The apparatus according to claim 6, characterized in that, The first adjustment unit includes: The first calculation module is used to divide the actual temperature rise value of the particulate matter collector by the target temperature rise value of the particulate matter collector to calculate the target coefficient. The first adjustment module is used to adjust the initial injection quantity of the injector according to the target coefficient, so as to obtain the adjusted injection quantity of the injector.

8. An electronic device, characterized in that, It includes one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement the fuel injection quantity processing method according to any one of claims 1 to 5.

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