Fuel injection quantity processing method and device and electronic equipment

Abstract

The invention discloses a fuel injection quantity processing method and device and electronic equipment, and the method comprises the steps that when it is detected that the mass of particulate matter trapped by a particulate matter trapper of a target vehicle is not smaller than the preset mass, the preset initial fuel injection quantity of a fuel injector of the target vehicle is obtained; according to the preset initial fuel injection quantity of the fuel injector, the target temperature rise value of the particulate matter trap is obtained through calculation; the actual temperature rise value of the particulate matter trap is obtained; and based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap, the preset initial fuel injection quantity of the fuel injector is adjusted, and the adjusted fuel injection quantity of the fuel injector is obtained. By means of the vehicle DPF regeneration method and device, the problems that when a vehicle is subjected to DPF regeneration in the related technology, the oil amount sprayed by an oil sprayer of the vehicle is too large, consequently, a large amount of HC leaks from an outlet of the aftertreatment tail end of the vehicle, and the utilization rate of the sprayed oil is low are solved.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to a method, device and electronic equipment for processing fuel injection quantity. Background Art

[0002] At present, during the regeneration process of DPF (Diesel Particulate Filter), diesel is generally injected through the remote post-injection of the injector, and the diesel is burned and oxidized in the DOC (Diesel Oxide Catalyst), thereby increasing the temperature of the DPF. However, in the related technology, the remote post-injection is generally excessive due to factors such as DOC efficiency cracking and inaccurate injection amount of the remote post-injection, resulting in a large amount of HC (hydrocarbon) leakage at the outlet of the post-treatment tail end, and in severe cases, white smoke will appear at the outlet of the post-treatment, which will lead to a low utilization rate of diesel.

[0003] There is currently no effective solution to the problem that when a vehicle is regenerating its DPF, the vehicle's injector may spray too much oil, which may cause a large amount of HC to leak from the vehicle's aftertreatment tail outlet and the utilization rate of the injected diesel is low. Summary of the invention

[0004] The present invention provides a method, device and electronic device for processing the injection amount, so as to solve the problem in the related art that when the vehicle is regenerating the DPF, the vehicle's remote after-injection injection will cause excessive amount of oil to be injected, thereby causing a large amount of HC to leak from the vehicle's after-treatment tail-end outlet, and the utilization rate of the injected diesel is low.

[0005] In a first aspect, the present application provides a method for processing a fuel injection amount, comprising:

[0006] When it is detected that the mass of particulate matter trapped by the particulate matter trap of the target vehicle is not less than a preset mass, obtaining an initial fuel injection amount preset by the fuel injector of the target vehicle, wherein the particulate matter trap is used to trap particulate matter in the exhaust gas emitted by the target vehicle;

[0007] Calculating a target temperature rise value of the particulate matter collector according to a preset initial fuel injection amount of the fuel injector;

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

[0009] Based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap, the preset initial fuel injection amount of the fuel injector is adjusted to obtain the adjusted fuel injection amount of the fuel injector.

[0010] In a possible implementation, adjusting the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted fuel injection amount of the fuel injector includes:

[0011] The actual temperature rise value of the particulate matter trap is divided by the target temperature rise value of the particulate matter trap to calculate a target coefficient;

[0012] According to the target coefficient, the preset initial fuel injection amount of the fuel injector is adjusted to obtain the adjusted fuel injection amount of the fuel injector.

[0013] In a possible implementation, adjusting the preset initial fuel injection amount of the fuel injector according to the target coefficient to obtain the adjusted fuel injection amount of the fuel injector includes:

[0014] The target coefficient is multiplied by the initial fuel injection amount preset by the fuel injector to obtain a target value;

[0015] The adjusted fuel injection amount of the fuel injector is obtained according to the target value.

[0016] In a possible implementation, the target temperature rise value of the particulate matter trap is calculated based on the preset initial fuel injection amount of the fuel injector, including:

[0017] Acquiring a volume value of an oxidation catalytic converter of the target vehicle, an intake air flow value of an engine of the target vehicle, and a temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to perform conversion processing on gas in exhaust gas emitted by the target vehicle;

[0018] The target temperature rise value of the particulate matter trap is calculated based on the preset initial injection amount of 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.

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

[0020] Acquiring a temperature value of the oxidation catalytic converter and a temperature value of the particulate matter trap;

[0021] An actual temperature rise value of the particulate matter trap is obtained according to the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter trap.

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

[0023] determining a temperature sensor disposed on an exhaust pipe of the oxidation catalytic converter;

[0024] The temperature sensor is used to measure the exhaust temperature of the oxidation catalytic converter to obtain the temperature value of the oxidation catalytic converter.

[0025] In a possible implementation, after adjusting the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted fuel injection amount of the fuel injector, the method further includes:

[0026] According to the adjusted fuel injection amount of the fuel injector, controlling the fuel injector to inject a target fuel amount;

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

[0028] In a second aspect, the present application also provides a fuel injection amount processing device, comprising:

[0029] a first acquisition unit, configured to acquire a preset initial fuel injection amount of a fuel injector of the target vehicle when it is detected that the mass of the 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] A first calculation unit, configured to calculate a target temperature rise value of the particulate matter trap according to an initial fuel injection amount preset by the fuel injector;

[0031] A second acquisition unit is used to acquire an actual temperature rise value of the particle collector;

[0032] The first adjustment unit is used to adjust the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted fuel injection amount of the fuel injector.

[0033] In a possible implementation, the first adjustment unit includes: a first calculation module, used to divide the actual temperature rise value of the particulate matter trap by the target temperature rise value of the particulate matter trap to calculate a target coefficient; a first adjustment module, used to adjust a preset initial injection amount of the injector according to the target coefficient to obtain an adjusted injection amount of the injector.

[0034] In a possible implementation, the first adjustment module includes: a first determination submodule, used to multiply the target coefficient and the preset initial injection amount of the injector to obtain a target value; and a second determination submodule, used to obtain the adjusted injection amount of the injector according to the target value.

[0035] In one possible implementation, the first calculation unit includes: a first acquisition module, used to obtain the volume value of the oxidation catalytic converter of the target vehicle, the intake 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; a second calculation module, used to calculate the target temperature rise value of the particulate matter collector based on the initial injection amount preset by the injector, the volume value of the oxidation catalytic converter, the intake flow value of the engine and the temperature value of the oxidation catalytic converter.

[0036] In a possible implementation, 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 trap; and a third acquisition module, used to acquire an 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.

[0037] In one possible implementation, the second acquisition module includes: a third determination submodule, used to determine a temperature sensor arranged on the exhaust pipe of the oxidation catalytic converter; and a fourth determination submodule, used to use the temperature sensor to measure the exhaust temperature of the oxidation catalytic converter to obtain the temperature value of the oxidation catalytic converter.

[0038] In one possible implementation, the device also includes: a first control unit, used to adjust the preset initial injection amount of the injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap, and after obtaining the adjusted injection amount of the injector, control the injector to inject the target oil amount according to the adjusted injection amount of the injector; a first processing unit, used to eliminate the target particulate matter in the particulate matter trap based on the target oil amount 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 trap.

[0039] In a third aspect, the present application also provides an electronic device, comprising one or more processors and a memory, wherein the memory is 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 implement the method for processing the injection amount as described in any one of the first aspects.

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

[0041] The present application provides a method, device and electronic device for processing injection quantity. When it is detected that the mass of particulate matter captured by a particle trap of a target vehicle is not less than a preset mass, an initial injection quantity preset by the injector of the target vehicle is obtained, wherein the particle trap is used to capture particulate matter in the exhaust gas emitted by the target vehicle; a target temperature rise value of the particle trap is calculated based on the initial injection quantity preset by the injector; an actual temperature rise value of the particle trap is obtained; and based on the actual temperature rise value of the particle trap and the target temperature rise value of the particle trap, the initial injection quantity preset by the injector is adjusted to obtain the adjusted injection quantity of the injector, thereby solving the problem in the related art that when the vehicle is undergoing DPF regeneration, the vehicle's injector will spray too much oil, which will cause a large amount of HC to leak from the vehicle's after-treatment tail-end outlet, and the low utilization rate of the injected diesel. By calculating the maximum temperature rise value of the DPF that can be increased under the current aftertreatment volume and engine operating conditions (i.e., the target temperature rise value) based on the amount of oil injected by the far after injection (i.e., the initial injection amount), and then adjusting the injection amount of the far after injection according to the actual temperature rise value of the DPF (i.e., the actual temperature rise value) and the calculated theoretical temperature rise value (i.e., the target temperature rise value), it is possible to avoid excessive injection amount of the far after injection during the DPF regeneration process, thereby causing a large amount of HC to leak from the aftertreatment tail-end outlet, thereby achieving the effect of reducing the HC leaking from the aftertreatment tail-end outlet and improving the utilization rate of diesel injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 A schematic flow chart of a method for processing fuel injection amount provided in an embodiment of the present application;

[0044] Figure 2 A schematic flow chart of another method for processing fuel injection amount provided in an embodiment of the present application;

[0045] Figure 3 A schematic diagram of the structure of a fuel injection amount processing device provided in an embodiment of the present application;

[0046] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] For the convenience of description, some nouns or terms involved in the embodiments of the present application are explained below:

[0050] DOC: Oxidation catalytic converter, installed in front of DPF (particulate matter filter), is used to oxidize NO (nitrogen monoxide) in exhaust gas into NO2 (nitrogen dioxide), while increasing the exhaust gas temperature, assisting the normal operation of DPF (particulate matter filter) and SCR (Selective Catalytic Reduction) catalyst.

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

[0052] DOC front temperature sensor (T DOC ): It is arranged on the exhaust pipe before the DOC (oxidation catalytic converter) to measure the exhaust temperature before the DOC (oxidation catalytic converter).

[0053] DPF front temperature sensor (T DPF ): It is arranged on the exhaust pipe before the DPF (particulate matter trap) to measure the exhaust temperature before the DPF (particulate matter trap). The model carbon deposit amount and diesel injection amount during regeneration are estimated through this temperature.

[0054] DPF regeneration: Utilizes the reaction principle between NO2 (nitrogen dioxide) and C (carbon) produced in DOC (oxidation catalytic converter) to eliminate C (carbon) in DPF (particulate matter trap).

[0055] The present invention is described below in conjunction with preferred implementation steps. Figure 1 is a flow chart of a method for processing fuel injection amount according to an embodiment of the present application, such as Figure 1 As shown, the method comprises the following steps:

[0056] Step S101, when it is detected that the mass of particulate matter trapped by the particulate matter trap of the target vehicle is not less than a preset mass, an initial fuel injection amount preset by the fuel injector of the target vehicle is obtained, wherein the particulate matter trap is used to trap particulate matter in the exhaust gas emitted by the target vehicle.

[0057] For example, during the DPF (particulate matter trap) regeneration process, that is, when the mass of particulate matter in the DPF (particulate matter trap) reaches a certain level, the injection amount of the far post injection of the injector (corresponding to the above-mentioned initial injection amount) is obtained.

[0058] Step S102, calculating a target temperature rise value of the particulate matter trap according to an initial fuel injection amount preset by the fuel injector.

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

[0060] Step S103, obtaining the actual temperature rise value of the particulate matter trap.

[0061] For example, the actual temperature rise value of the DPF (particulate matter trap) is calculated (corresponding to the actual temperature rise value mentioned above).

[0062] Step S104, adjusting the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted fuel injection amount of the fuel injector.

[0063] For example, the fuel injection amount of the far post injection of the injector (corresponding to the above-mentioned initial fuel injection amount) is adjusted according to the actual DPF temperature rise value (corresponding to the above-mentioned actual temperature rise value) and the calculated theoretical temperature rise value (corresponding to the above-mentioned target temperature rise value).

[0064] Through the above steps S101 to S104, the maximum temperature rise value of the DPF (particulate matter trap) that can be increased under the current after-treatment volume and engine operating conditions (i.e., the target temperature rise value) is calculated based on the injection amount of the far-after injection of the injector (i.e., the initial injection amount), and then the injection amount of the far-after injection of the injector is adjusted according to the actual temperature rise value of the DPF (particulate matter trap) (i.e., the actual temperature rise value) and the calculated theoretical temperature rise value (i.e., the target temperature rise value). This can avoid excessive diesel injection by the far-after injection of the injector during the DPF regeneration process, thereby causing a large amount of HC to leak from the after-treatment tail-end outlet, thereby achieving the effect of improving the utilization rate of diesel.

[0065] Optionally, in the method for processing the injection amount provided in the embodiment of the present application, calculating the target temperature rise value of the particulate matter collector based on the initial injection amount pre-set by the injector includes: obtaining the volume value of the oxidation catalytic converter of the target vehicle, the intake 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; calculating the target temperature rise value of the particulate matter collector based on the initial injection amount pre-set by the injector, the volume value of the oxidation catalytic converter, the intake flow value of the engine and the temperature value of the oxidation catalytic converter.

[0066] For example, according to the injection amount q of the injector during the regeneration process 初始 The maximum temperature increase value ΔT is calculated by using the parameters of (corresponding to the above-mentioned initial injection amount), the volume of DOC (corresponding to the above-mentioned volume value of the oxidation catalytic converter), the engine intake flow rate (corresponding to the above-mentioned engine intake flow rate value), and the pre-DOC temperature (corresponding to the above-mentioned temperature value of the oxidation catalytic converter). 计算值 (corresponding to the target temperature rise value mentioned above).

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

[0068] Optionally, in the method for processing the injection amount provided in an embodiment of the present application, 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.

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

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

[0071] Optionally, in the method for processing the injection amount provided in an embodiment of the present application, obtaining the temperature value of the oxidation catalytic converter includes: determining a temperature sensor arranged on the exhaust pipe of the oxidation catalytic converter; using the temperature sensor to measure the exhaust temperature of the oxidation catalytic converter to obtain the temperature value of the oxidation catalytic converter.

[0072] For example, a DOC pre-temperature sensor (T DOC ), and use the DOC front 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 before the oxidation catalytic converter can be conveniently measured by using a temperature sensor.

[0074] Optionally, in the method for processing the injection amount provided in the embodiment of the present application, based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap, the preset initial injection amount of the injector is adjusted to obtain the adjusted injection amount of the injector, including: dividing the actual temperature rise value of the particulate matter trap by the target temperature rise value of the particulate matter trap to calculate a target coefficient; and adjusting the preset initial injection amount of the injector according to the target coefficient to obtain the adjusted injection amount of the injector.

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

[0076] Through the above scheme, the utilization coefficient of the fuel injection amount of the injector can be calculated quickly and accurately.

[0077] Optionally, in the method for processing the injection amount provided in the embodiment of the present application, the initial injection amount preset for the injector is adjusted according to the target coefficient, and obtaining the adjusted injection amount of the injector includes: multiplying the target coefficient and the initial injection amount preset for the injector to obtain a target value; and obtaining the adjusted injection amount of the injector according to the target value.

[0078] For example, according to 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 above target temperature rise value) Calculate the utilization coefficient fac = ΔT 实际值 / ΔT 计算值Based on the utilization coefficient (corresponding to the above target coefficient), the injection amount q of the far-rear injection is adjusted. 调整后 =fac*q 初始 .

[0079] Through the above scheme, the utilization effect of the diesel injected in the far post injection can be improved.

[0080] Optionally, in the method for processing the injection amount provided in the embodiment of the present application, after adjusting the pre-set initial injection amount of the injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted injection amount of the injector, the method also includes: controlling the injector to inject a target amount of oil according to the adjusted injection amount of the injector; eliminating the target particulate matter in the particulate matter trap based on the target amount of oil injected by the injector and the target gas generated in the oxidation catalytic converter to realize the regeneration process of the particulate matter trap.

[0081] For example, the remote after-injector of the injector can be controlled to inject the adjusted injection amount q 调整后 Then, the NO2 (nitrogen dioxide) (corresponding to the target gas mentioned above) and C (carbon) produced in the DOC (oxidation catalytic converter) are used to react to eliminate the C (carbon) (corresponding to the target particulate matter mentioned above) in the DPF (particulate matter trap), thereby completing the DPF regeneration process.

[0082] Through the above-mentioned scheme, the carbon particulate matter in the particulate matter collector can be eliminated quickly and accurately.

[0083] In this embodiment, the total heat and utilization efficiency under the fuel amount of the remote post-injection of the injector are calculated, and the maximum temperature rise value of the DPF that can be increased under the current after-treatment volume and engine operating conditions is deduced. Then, the utilization coefficient of the remote post-injection fuel amount is calculated according to the actual DPF temperature rise and the calculated theoretical temperature rise value. The fuel amount of the remote post-injection of the injector is adjusted according to the utilization coefficient to achieve the effect of reducing HC at the tail end of the after-treatment.

[0084] For example, Figure 2 : is a flow chart of an optional method for processing the fuel injection amount provided in an embodiment of the present application, which specifically includes the following steps:

[0085] S201, collect the injection amount q of the far-rear injection 初始 ;

[0086] S202, according to the injection amount q of the far-rear injection 初始 , DOC volume, engine intake flow and DOC pre-temperature, calculate the theoretical maximum temperature increase ΔT 计算值 ;

[0087] S203, collecting actual DOC pre-temperature and DPF pre-temperature;

[0088] S204: Calculate the actual temperature rise value ΔT based on the actual DOC pre-temperature and DPF pre-temperature 实际值 ;

[0089] S205, based on actual temperature rise ΔT 实际值 and the maximum temperature rise ΔT 计算值 , calculate the utilization coefficient fac;

[0090] S206, based on the utilization coefficient fac and the injection amount q of the far post injection 初始 , calculate the adjusted injection quantity q of the far-rear injection 调整后 .

[0091] Figure 2 In the regeneration process, according to the injection amount q of the injector in the far back injection 初始 , DOC volume, engine intake flow, and DOC pre-temperature parameters to calculate the maximum temperature increase value ΔT 计算值 , and then calculate the actual temperature rise ΔT based on the actual DOC front temperature and DPF front temperature 实际值 , calculate the utilization factor fac=ΔT based on the actual value and calculated value of temperature rise 实际值 / ΔT 计算值 Based on the utilization coefficient, the injection amount q of the far-rear injection is adjusted 调整后 =fac*q 初始 , so as to achieve the effect of improving the utilization rate of diesel injected in the far post injection.

[0092] The method provided in this embodiment can avoid excessive diesel injection due to DOC efficiency cracking, inaccurate diesel injection amount in the remote post-injection of the injector, etc., thereby causing a large amount of HC leakage at the after-treatment tail end outlet, thereby improving the utilization efficiency of the diesel injected in the remote post-injection.

[0093] For example, based on the injection amount of the remote injection of the injector, the maximum DPF temperature rise value that can be increased under the current after-treatment volume and engine operating conditions is calculated, and then the utilization coefficient of the injection amount of the remote after-injection is calculated according to the actual DPF temperature rise and the calculated theoretical temperature rise value. The injection amount of the remote after-injection of the injector is adjusted according to the utilization coefficient to achieve the effect of reducing HC at the tail end of the after-treatment.

[0094] In summary, the method for processing the injection amount provided in the embodiment of the present application obtains the initial injection amount preset by the injector of the target vehicle when it is detected that the mass of the particulate matter captured by the particulate matter trap of the target vehicle is not less than the preset mass, wherein the particulate matter trap is used to capture the particulate matter in the exhaust gas emitted by the target vehicle; calculates the target temperature rise value of the particulate matter trap based on the initial injection amount preset by the injector; obtains the actual temperature rise value of the particulate matter trap; adjusts the initial injection amount preset by the injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted injection amount of the injector, thereby solving the problem in the related art that when the vehicle is regenerating the DPF, the injector of the vehicle will spray too much oil, which will cause a large amount of HC to leak from the after-treatment tail-end outlet of the vehicle, thereby resulting in a low utilization rate of the injected oil. By calculating the maximum temperature rise value of the DPF that can be increased under the current aftertreatment volume and engine operating conditions (i.e., the target temperature rise value) based on the amount of oil injected by the far after injection (i.e., the initial injection amount), and then adjusting the injection amount of the far after injection according to the actual temperature rise value of the DPF (i.e., the actual temperature rise value) and the calculated theoretical temperature rise value (i.e., the target temperature rise value), it is possible to avoid excessive injection amount of the far after injection during the DPF regeneration process, thereby causing a large amount of HC to leak from the aftertreatment tail-end outlet, thereby achieving the effect of reducing the HC leaking from the aftertreatment tail-end outlet and improving the utilization rate of diesel injection.

[0095] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0096] The embodiment of the present application also provides a fuel injection amount processing device. It should be noted that the fuel injection amount processing device of the embodiment of the present application can be used to execute the fuel injection amount processing method provided in the embodiment of the present application. The fuel injection amount processing device provided in the embodiment of the present application is introduced below.

[0097] Figure 3 Schematic diagram of a fuel injection amount processing device provided according to an embodiment of the present 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 amount preset by the fuel injector of the target vehicle when it is detected that the mass of the particulate matter captured by the particulate matter trap of the target vehicle is not less than the preset mass, wherein the particulate matter trap is used to capture the 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 trap according to the initial fuel injection amount preset by the fuel injector;

[0100] The second acquisition unit 303 is used to acquire the actual temperature rise value of the particle trap;

[0101] The first adjustment unit 304 is used to adjust the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted fuel injection amount of the fuel injector.

[0102] In summary, the fuel injection amount processing device provided in the embodiment of the present application obtains the preset initial fuel injection amount of the fuel injector of the target vehicle through the first acquisition unit 301 when it is detected that the mass of the particulate matter captured by the particulate matter collector of the target vehicle is not less than the preset mass, wherein the particulate matter collector is used to capture the 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 collector based on the preset initial fuel injection amount of the fuel injector; the second acquisition unit 303 obtains the actual temperature rise value of the particulate matter collector; the first adjustment unit 304 adjusts the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter collector and the target temperature rise value of the particulate matter collector to obtain the adjusted fuel injection amount of the fuel injector, which solves the problem in the related art that when the vehicle is regenerating the DPF, the fuel injector of the vehicle will spray too much oil, which will cause a large amount of HC to leak from the after-treatment tail outlet of the vehicle, thereby resulting in a low utilization rate of the injected oil. By calculating the maximum temperature rise value of the DPF that can be increased under the current aftertreatment volume and engine operating conditions (i.e., the target temperature rise value) based on the amount of oil injected by the far after injection (i.e., the initial injection amount), and then adjusting the injection amount of the far after injection according to the actual temperature rise value of the DPF (i.e., the actual temperature rise value) and the calculated theoretical temperature rise value (i.e., the target temperature rise value), it is possible to avoid excessive injection amount of the far after injection during the DPF regeneration process, thereby causing a large amount of HC to leak from the aftertreatment tail-end outlet, thereby achieving the effect of reducing the HC leaking from the aftertreatment tail-end outlet and improving the utilization rate of diesel injection.

[0103] Optionally, in the fuel injection amount processing device provided in the embodiment of the present 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; a first adjustment module, used to adjust the preset initial fuel injection amount of the injector according to the target coefficient to obtain the adjusted fuel injection amount of the injector.

[0104] Optionally, in the fuel injection amount processing device provided in the embodiment of the present application, the first adjustment module includes: a first determination submodule, used to multiply the target coefficient and the initial fuel injection amount preset by the injector to obtain a target value; and a second determination submodule, used to obtain the fuel injection amount of the injector after adjustment based on the target value.

[0105] Optionally, in the fuel injection amount processing device provided in the embodiment of the present application, the first calculation unit includes: a first acquisition module, used to obtain the volume value of the oxidation catalytic converter of the target vehicle, the intake 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; a second calculation module, used to calculate the target temperature rise value of the particulate matter collector based on the pre-set initial fuel injection amount of the injector, the volume value of the oxidation catalytic converter, the intake flow value of the engine and the temperature value of the oxidation catalytic converter.

[0106] Optionally, in the fuel injection amount processing device provided in the embodiment of the present application, the second acquisition unit includes: a second acquisition module, used to obtain the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter trap; a third acquisition module, used to obtain 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.

[0107] Optionally, in the fuel injection quantity processing device provided in the embodiment of the present application, the second acquisition module includes: a third determination submodule, used to determine a temperature sensor arranged on the exhaust pipe of the oxidation catalytic converter; and a fourth determination 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 amount processing device provided in the embodiment of the present application, the device also includes: a first control unit, used to adjust the preset initial fuel injection amount of the injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap, and after obtaining the adjusted fuel injection amount of the injector, control the injector to inject the target fuel amount according to the adjusted fuel injection amount of the injector; a first processing unit, used to eliminate the target particulate matter in the particulate matter trap based on the target fuel amount 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 trap.

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

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

[0111] The memory may include non-permanent memory in a computer-readable medium, 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] An embodiment of the present invention provides a computer-readable storage medium on which a program is stored. When the program is executed by a processor, the method for processing the fuel injection amount is implemented.

[0113] An embodiment of the present invention provides a processor, which is used to run a program, wherein the method for processing the fuel injection amount is executed when the program is running.

[0114] like Figure 4 As shown, an embodiment of the present invention provides an electronic device, the device includes a processor, a memory and a program stored in the memory and executable on the processor, and the processor implements the following steps when executing the program: when it is detected that the mass of particulate matter captured by the particle collector of the target vehicle is not less than a preset mass, obtaining a preset initial injection amount of the injector of the target vehicle, wherein the particle collector is used to capture particulate matter in the exhaust gas emitted by the target vehicle; calculating a target temperature rise value of the particle collector based on the preset initial injection amount of the injector; obtaining an actual temperature rise value of the particle collector; and adjusting the preset initial injection amount of the injector based on the actual temperature rise value of the particle collector and the target temperature rise value of the particle collector to obtain an adjusted injection amount of the injector.

[0115] When the processor executes the program, the following steps are also implemented: based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap, the preset initial injection amount of the injector is adjusted to obtain the adjusted injection amount of the injector, including: dividing the actual temperature rise value of the particulate matter trap by the target temperature rise value of the particulate matter trap to calculate the target coefficient; according to the target coefficient, the preset initial injection amount of the injector is adjusted to obtain the adjusted injection amount of the injector.

[0116] When the processor executes the program, the following steps are also implemented: according to the target coefficient, the preset initial injection amount of the injector is adjusted, and the adjusted injection amount of the injector is obtained, including: multiplying the target coefficient and the preset initial injection amount of the injector to obtain the target value; according to the target value, the adjusted injection amount of the injector is obtained.

[0117] When the processor executes the program, the following steps are also implemented: based on the initial fuel injection amount preset by the injector, the target temperature rise value of the particulate matter trap is calculated, including: obtaining the volume value of the oxidation catalytic converter of the target vehicle, the intake 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; based on the initial fuel injection amount preset by the injector, the volume value of the oxidation catalytic converter, the intake flow value of the engine and the temperature value of the oxidation catalytic converter, the target temperature rise value of the particulate matter trap is calculated.

[0118] When the processor executes the program, the following steps are also implemented: 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; 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, the following steps are also implemented: obtaining the temperature value of the oxidation catalytic converter includes: determining a temperature sensor arranged on the exhaust pipe of the oxidation catalytic converter; using the temperature sensor to measure the exhaust temperature of the oxidation catalytic converter to obtain the temperature value of the oxidation catalytic converter.

[0120] When the processor executes the program, the following steps are also implemented: after adjusting the preset initial injection amount of the injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted injection amount of the injector, it also includes: controlling the injector to inject a target amount of oil according to the adjusted injection amount of the injector; and eliminating the target particulate matter in the particulate matter trap based on the target amount of oil injected by the injector and the target gas generated in the oxidation catalytic converter to realize the regeneration process of the particulate matter trap.

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

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

[0123] When executed on a data processing device, it is also suitable for executing a program that is initialized with the following method steps: based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap, adjusting the preset initial injection amount of the injector to obtain the adjusted injection amount of the injector includes: dividing the actual temperature rise value of the particulate matter trap by the target temperature rise value of the particulate matter trap to calculate the target coefficient; according to the target coefficient, adjusting the preset initial injection amount of the injector to obtain the adjusted injection amount of the injector.

[0124] When executed on a data processing device, it is also suitable for executing a program that is initialized with the following method steps: adjusting the preset initial injection amount of the injector according to the target coefficient, and obtaining the adjusted injection amount of the injector includes: multiplying the target coefficient and the preset initial injection amount of the injector to obtain a target value; and obtaining the adjusted injection amount of the injector according to the target value.

[0125] When executed on a data processing device, it is also suitable for executing a program initialized with the following method steps: calculating a target temperature rise value of a particulate matter trap based on an initial fuel injection amount preset by the injector, including: obtaining a volume value of an oxidation catalytic converter of a target vehicle, an intake flow value of an engine of the target vehicle, and a temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to perform conversion treatment on gases in exhaust gas emitted by the target vehicle; calculating a target temperature rise value of the particulate matter trap based on an initial fuel injection amount preset by the injector, a volume value of the oxidation catalytic converter, an intake flow value of an engine, and a temperature value of the oxidation catalytic converter.

[0126] When executed on a data processing device, it is also suitable for executing a program that is initialized with the following method steps: 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; 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 for executing a program that is initialized with the following method steps: obtaining the temperature value of the oxidation catalytic converter includes: determining a temperature sensor arranged on the exhaust pipe of the oxidation catalytic converter; using the temperature sensor to measure the exhaust temperature of the oxidation catalytic converter to obtain the temperature value of the oxidation catalytic converter.

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

[0129] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0130] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0131] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0132] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1The steps for the functions 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] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0135] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules 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 technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0136] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0137] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0138] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for processing fuel injection amount, characterized in that: include: When it is detected that the mass of particulate matter trapped by the particulate matter trap of the target vehicle is not less than a preset mass, obtaining an initial fuel injection amount preset by the fuel injector of the target vehicle, wherein the particulate matter trap is used to trap particulate matter in the exhaust gas emitted by the target vehicle; Calculating a target temperature rise value of the particulate matter collector according to a preset initial fuel injection amount of the fuel injector; Obtaining an actual temperature rise value of the particulate matter collector; Based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap, the preset initial fuel injection amount of the fuel injector is adjusted to obtain the adjusted fuel injection amount of the fuel injector.

2. The method according to claim 1, characterized in that The step of adjusting the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted fuel injection amount of the fuel injector includes: The actual temperature rise value of the particulate matter trap is divided by the target temperature rise value of the particulate matter trap to calculate a target coefficient; According to the target coefficient, the preset initial fuel injection amount of the fuel injector is adjusted to obtain the adjusted fuel injection amount of the fuel injector.

3. The method according to claim 2, characterized in that The step of adjusting the preset initial fuel injection amount of the fuel injector according to the target coefficient to obtain the adjusted fuel injection amount of the fuel injector comprises: The target coefficient is multiplied by the initial fuel injection amount preset by the fuel injector to obtain a target value; The adjusted fuel injection amount of the fuel injector is obtained according to the target value.

4. The method according to claim 1, characterized in that: The step of calculating the target temperature rise value of the particulate matter trap according to the preset initial fuel injection amount of the fuel injector comprises: Acquiring a volume value of an oxidation catalytic converter of the target vehicle, an intake air flow value of an engine of the target vehicle, and a temperature value of the oxidation catalytic converter, wherein the oxidation catalytic converter is used to perform conversion processing on gas in exhaust gas emitted by the target vehicle; The target temperature rise value of the particulate matter trap is calculated based on the preset initial injection amount of 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.

5. The method according to claim 4, characterized in that The obtaining of the actual temperature rise value of the particle collector comprises: Acquiring a temperature value of the oxidation catalytic converter and a temperature value of the particulate matter trap; An actual temperature rise value of the particulate matter trap is obtained according to the temperature value of the oxidation catalytic converter and the temperature value of the particulate matter trap.

6. The method according to claim 5, characterized in that The obtaining of the temperature value of the oxidation catalytic converter comprises: determining a temperature sensor disposed on an exhaust pipe of the oxidation catalytic converter; The temperature sensor is used to measure the exhaust temperature of the oxidation catalytic converter to obtain the temperature value of the oxidation catalytic converter.

7. The method according to claim 4, characterized in that After adjusting the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted fuel injection amount of the fuel injector, the method further includes: According to the adjusted fuel injection amount of the fuel injector, controlling the fuel injector to inject a target fuel amount; Based on the target oil amount injected by the injector and the target gas generated in the oxidation catalytic converter, target particulate matter in the particulate matter trap is eliminated to achieve a regeneration process of the particulate matter trap.

8. A fuel injection amount processing device, characterized in that: include: a first acquisition unit, configured to acquire a preset initial fuel injection amount of a fuel injector of the target vehicle when it is detected that the mass of the 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; A first calculation unit, configured to calculate a target temperature rise value of the particulate matter trap according to an initial fuel injection amount preset by the fuel injector; A second acquisition unit is used to acquire an actual temperature rise value of the particle collector; The first adjustment unit is used to adjust the preset initial fuel injection amount of the fuel injector based on the actual temperature rise value of the particulate matter trap and the target temperature rise value of the particulate matter trap to obtain the adjusted fuel injection amount of the fuel injector.

9. The device according to claim 8, characterized in that The first adjustment unit comprises: A first calculation module is used to divide the actual temperature rise value of the particulate matter trap by the target temperature rise value of the particulate matter trap to calculate a target coefficient; The first adjustment module is used to adjust the preset initial fuel injection amount of the fuel injector according to the target coefficient to obtain the adjusted fuel injection amount of the fuel injector.

10. An electronic device, characterized in that: It includes one or more processors and a memory, wherein the memory is 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 implement the method for processing the injection quantity as described in any one of claims 1 to 7.

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