Exhaust gas recirculation device, exhaust gas recirculation control method, device, and electronic device

Abstract

The application discloses a waste gas circulation device, a waste gas circulation control method, a waste gas circulation control device and an electronic device. The waste gas circulation control method comprises the following steps: obtaining engine state information of a target vehicle, wherein the engine state information is used for determining the rotating speed and the air charge of the engine; determining the working mode of the waste gas circulation device of the target vehicle based on the engine state information; and controlling the waste gas circulation device to perform the target operation corresponding to the working mode. The application solves the technical problems of low waste gas circulation efficiency and difficult cleaning of the waste gas circulation system of the vehicle in the related art.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and more specifically, to an exhaust gas recirculation device, an exhaust gas recirculation control method, an apparatus, and an electronic device. Background Technology

[0002] Exhaust gas recirculation (EGR) technology is an emission control technology for internal combustion engines. It reduces nitrogen oxide emissions and improves fuel economy by reintroducing a portion of exhaust gas into the combustion chamber. The EGR rate is an indicator that measures the amount of recirculated exhaust gas; it represents the ratio of recirculated exhaust gas to the total intake air volume.

[0003] However, in related technologies, exhaust gas recirculation (EGR) systems that extract exhaust gas after the catalytic converter often suffer from difficulties in controlling the installation dimensions of the EGR system piping, typically employing structures like bellows. Consequently, during engine operation, the catalytic converter vibrates, which can cause severe vibrations in the EGR system's connecting pipes, making them prone to breakage. Secondly, due to the resistance of the catalytic converter, the pressure of the exhaust gas extracted after it is relatively low, resulting in low EGR efficiency.

[0004] In addition, engine exhaust typically contains a large amount of carbon pollutants, which can lead to severe carbon buildup in the exhaust gas recirculation (EGR) system's piping, affecting the normal operation of the EGR system and engine performance. However, the main method for solving the carbon buildup problem in EGR systems is manual cleaning of the piping after disassembly, but this method is time-consuming and labor-intensive.

[0005] Therefore, the exhaust gas recirculation efficiency of vehicles in related technologies is low, and the exhaust gas recirculation system is difficult to clean.

[0006] There is currently no effective solution to the above problems. Summary of the Invention

[0007] This invention provides an exhaust gas recirculation device, an exhaust gas recirculation control method, an apparatus, and an electronic device to at least solve the technical problems of low exhaust gas recirculation efficiency and difficulty in cleaning exhaust gas recirculation systems in related technologies.

[0008] According to one embodiment of the present invention, an exhaust gas recirculation device is provided, comprising: an air filter, an engine, an exhaust valve, an exhaust gas treatment assembly, an exhaust gas recirculation filter, and an exhaust gas recirculation assembly, wherein a first end of the air filter is connected to a first end of the engine of a target vehicle, a first end of the air filter is connected to the exhaust gas recirculation assembly, the exhaust gas recirculation assembly is connected to a first end of the engine of the target vehicle, a second end of the engine of the target vehicle is connected to a first end of the exhaust valve, a second end of the exhaust valve is connected to a first end of the exhaust gas treatment assembly, a second end of the exhaust valve is connected to a first end of the exhaust gas recirculation filter, a first end of the exhaust gas treatment assembly is connected to a first end of the exhaust gas recirculation filter, and a second end of the exhaust gas recirculation filter is connected to the exhaust gas recirculation assembly.

[0009] Optionally, the exhaust gas recirculation assembly includes an exhaust gas recirculation turbocharger, an exhaust gas recirculation valve, and an exhaust gas cooler. The exhaust valve is used to transmit exhaust gas generated by the engine. The exhaust gas treatment assembly is used to purify the exhaust gas generated by the engine and discharge the purified exhaust gas. The exhaust gas recirculation filter is used to filter the exhaust gas to be recirculated. The exhaust gas recirculation assembly is used to cool and pressurize the filtered exhaust gas to be recirculated.

[0010] Optionally, the first end of the air filter is connected to the first end of the exhaust gas recirculation turbocharger, the first end of the engine is connected to the first end of the exhaust gas recirculation turbocharger, the second end of the exhaust gas recirculation turbocharger is connected to the first end of the exhaust gas recirculation valve, the second end of the exhaust gas recirculation valve is connected to the first end of the exhaust gas cooler, and the second end of the exhaust gas cooler is connected to the second end of the exhaust gas recirculation filter.

[0011] According to one embodiment of the present invention, an exhaust gas recirculation control method is also provided. The exhaust gas recirculation control method is applied to the exhaust gas recirculation device of any of the above, comprising: acquiring engine status information of a target vehicle, wherein the engine status information is used to determine the engine speed and charge volume; determining the operating mode of the exhaust gas recirculation device of the target vehicle based on the engine status information; and controlling the exhaust gas recirculation device to perform the target operation corresponding to the operating mode.

[0012] Optionally, the response determines the operating mode of the exhaust gas recirculation (EGR) device for the target vehicle based on engine status information as an EGR mode. Controlling the EGR device to perform the target operation corresponding to this operating mode includes: determining a target EGR rate based on engine status information; controlling the exhaust valve in the EGR device to open based on first opening information, so that the EGR filter in the EGR device filters a first volume of engine exhaust gas; and the exhaust gas treatment component in the EGR device purifies a second volume of engine exhaust gas and discharges the purified engine exhaust gas. The first opening information is determined based on the target EGR rate. The rate is determined; the filtered first volume of engine exhaust gas is cooled to obtain a first cooling gas; the exhaust gas recirculation valve in the exhaust gas recirculation device is controlled to open based on the second opening information so that the first cooling gas enters the exhaust gas recirculation turbocharger in the exhaust gas recirculation device, wherein the second opening information is determined according to the target exhaust gas recirculation rate; in response to the determination of gas pressurization demand based on the target exhaust gas recirculation rate, the first cooling gas is pressurized based on the first pressure value to obtain a first gas, so that the first gas mixes with the gas drawn in by the air filter and enters the engine, wherein the first pressure value is determined according to the target vehicle's operating status information.

[0013] Optionally, responding to the determination that the operating mode of the exhaust gas recirculation device of the target vehicle is a cleaning mode based on engine status information, controlling the exhaust gas recirculation device to perform the target operation corresponding to the operating mode includes: responding to the current operating mode of the exhaust gas recirculation device of the target vehicle being an active cleaning mode, controlling the exhaust gas recirculation device to perform the target operation corresponding to the cleaning mode; responding to the current operating mode of the exhaust gas recirculation device of the target vehicle being a passive cleaning mode, controlling the exhaust gas recirculation device to perform the target operation corresponding to the cleaning mode based on the user's trigger operation of the cleaning switch.

[0014] Optionally, the target operation corresponding to the cleaning mode of the exhaust gas recirculation device includes: pressurizing the air drawn into the air filter of the exhaust gas recirculation device using the exhaust gas recirculation booster in the exhaust gas recirculation device to obtain a second gas; controlling the exhaust gas recirculation valve in the exhaust gas recirculation device to open and the exhaust valve in the exhaust gas recirculation device to close, so that the second gas enters the exhaust gas cooler in the exhaust gas recirculation device; cooling the second gas to obtain a second cooling gas, so that the second cooling gas cleans the exhaust gas recirculation filter in the exhaust gas recirculation device.

[0015] According to one embodiment of the present invention, an exhaust gas recirculation control device is also provided. The device includes: an acquisition module for acquiring engine status information of a target vehicle, wherein the engine status information is used to determine the engine speed and charge volume; a determination module for determining the operating mode of the exhaust gas recirculation device of the target vehicle based on the engine status information; and a control module for controlling the exhaust gas recirculation device to perform the target operation corresponding to the operating mode.

[0016] Optionally, the control module is further configured to: determine a target exhaust gas recirculation rate based on engine status information; control the exhaust valve in the exhaust gas recirculation device to open based on a first opening information, so that the exhaust gas recirculation filter in the exhaust gas recirculation device filters a first volume of engine exhaust gas, and the exhaust gas treatment component in the exhaust gas recirculation device purifies a second volume of engine exhaust gas, and discharges the purified engine exhaust gas, wherein the first opening information is determined according to the target exhaust gas recirculation rate; cool the filtered first volume of engine exhaust gas to obtain a first cooling gas; control the exhaust gas recirculation valve in the exhaust gas recirculation device to open based on a second opening information, so that the first cooling gas enters the exhaust gas recirculation turbocharger in the exhaust gas recirculation device, wherein the second opening information is determined according to the target exhaust gas recirculation rate; respond to the determination of a gas pressurization demand based on the target exhaust gas recirculation rate, pressurize the first cooling gas based on a first pressure value to obtain a first gas, so that the first gas mixes with the gas drawn in by the air filter and enters the engine, wherein the first pressure value is determined according to the target vehicle's operating status information.

[0017] Optionally, the control module is also configured to control the exhaust gas recirculation device to perform the target operation corresponding to the cleaning mode in response to the current operating mode of the exhaust gas recirculation device of the target vehicle being active cleaning mode; and to control the exhaust gas recirculation device to perform the target operation corresponding to the cleaning mode based on the user's trigger operation of the cleaning switch in response to the current operating mode of the exhaust gas recirculation device of the target vehicle being passive cleaning mode.

[0018] Optionally, the control module is also used to pressurize the air drawn into the air filter in the exhaust gas recirculation device using the exhaust gas recirculation booster in the exhaust gas recirculation device to obtain a second gas; control the exhaust gas recirculation valve in the exhaust gas recirculation device to open and close the exhaust valve in the exhaust gas recirculation device to allow the second gas to enter the exhaust gas cooler in the exhaust gas recirculation device; and cool the second gas to obtain a second cooling gas so that the second cooling gas can clean the exhaust gas recirculation filter in the exhaust gas recirculation device.

[0019] According to one embodiment of the present invention, a non-volatile storage medium is also provided, wherein a computer program is stored in the storage medium, and the computer program is configured to execute the exhaust gas recirculation control method described above when running.

[0020] According to one embodiment of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the exhaust gas recirculation control method described in any of the preceding claims.

[0021] In this embodiment of the invention, by acquiring the engine status information of the target vehicle, the working mode of the exhaust gas recirculation device of the target vehicle is determined based on the engine status information, and finally the exhaust gas recirculation device is controlled to perform the target operation corresponding to the working mode, thereby achieving the purpose of exhaust gas recirculation. This achieves the technical effect of improving the exhaust gas recirculation efficiency of the vehicle and simplifying the cleaning operation of the exhaust gas recirculation system, thereby solving the technical problems of low exhaust gas recirculation efficiency and difficult cleaning of the exhaust gas recirculation system in related technologies. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of a waste gas recirculation device according to one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of an exhaust assembly according to one embodiment of the present invention;

[0025] Figure 3 This is another schematic diagram of an exhaust assembly according to one embodiment of the present invention;

[0026] Figure 4 This is another schematic diagram of an exhaust assembly according to one embodiment of the present invention;

[0027] Figure 5 This is another schematic diagram of an exhaust assembly according to one embodiment of the present invention;

[0028] Figure 6 This is a flowchart of a waste gas recirculation control method according to one embodiment of the present invention;

[0029] Figure 7 This is a structural block diagram of an exhaust gas recirculation control device according to one embodiment of the present invention. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention 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 so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a 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.

[0032] According to an embodiment of the present invention, an embodiment of an exhaust gas recirculation control method is provided. 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. Furthermore, 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.

[0033] This method embodiment can be executed in an electronic device or similar computing device that includes memory and a processor. The aforementioned electronic device may include one or more processors (processors may include, but are not limited to, central processing units (CPUs), graphics processing units (GPUs), digital signal processing (DSP) chips, microcontroller units (MCUs), field-programmable gate arrays (FPGAs), neural network processors (NPUs), tensor processors (TPUs), artificial intelligence (AI) type processors, etc.) and memory for storing data. Optionally, the aforementioned electronic device may also include transmission devices, input / output devices, and display devices for communication functions. Those skilled in the art will understand that the above structural description is merely illustrative and does not limit the structure of the aforementioned electronic device. For example, the electronic device may include more or fewer components than those described above, or have a different configuration than those described above.

[0034] The memory can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the exhaust gas recirculation control method in this embodiment of the invention. The processor executes various functional applications and data processing by running the computer program stored in the memory, thereby realizing the aforementioned exhaust gas recirculation control method. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory remotely located relative to the processor, and these remote memories can be connected to a mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0035] The transmission device is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the mobile terminal's communication provider. In one example, the transmission device includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0036] Display devices can be, for example, touchscreen liquid crystal displays (LCDs) and touch displays (also referred to as "touchscreens" or "touch displays"). The LCD allows users to interact with the user interface of the mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), which allows users to interact with the GUI through finger contact and / or gestures on a touch-sensitive surface. Optional human-computer interaction functions include: creating web pages, drawing, word processing, creating electronic documents, playing games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital video, playing digital music, and / or web browsing, etc. Executable instructions for performing the above human-computer interaction functions are configured / stored in one or more processor-executable computer program products or readable storage media.

[0037] According to an embodiment of the present invention, an exhaust gas recirculation control method is provided. 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. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0038] Figure 1 This is a schematic diagram of an exhaust gas recirculation device according to one embodiment of the present invention, as shown below. Figure 1 As shown, the exhaust gas recirculation device includes: an air filter, an engine, an exhaust valve, an exhaust gas treatment assembly, an exhaust gas recirculation filter, and an exhaust gas recirculation assembly. The first end of the air filter is connected to the first end of the engine of the target vehicle. The first end of the air filter is connected to the exhaust gas recirculation assembly. The exhaust gas recirculation assembly is connected to the first end of the engine of the target vehicle. The second end of the engine of the target vehicle is connected to the first end of the exhaust valve. The second end of the exhaust valve is connected to the first end of the exhaust gas treatment assembly. The second end of the exhaust valve is connected to the first end of the exhaust gas recirculation filter. The first end of the exhaust gas treatment assembly is connected to the first end of the exhaust gas recirculation filter. The second end of the exhaust gas recirculation filter is connected to the exhaust gas recirculation assembly.

[0039] Optionally, the exhaust gas recirculation assembly includes an exhaust gas recirculation turbocharger, an exhaust gas recirculation valve, and an exhaust gas cooler. The exhaust valve is used to transmit exhaust gas generated by the engine. The exhaust gas treatment assembly is used to purify the exhaust gas generated by the engine and discharge the purified exhaust gas. The exhaust gas recirculation filter is used to filter the exhaust gas to be recirculated. The exhaust gas recirculation assembly is used to cool and pressurize the filtered exhaust gas to be recirculated.

[0040] Optionally, the first end of the air filter is connected to the first end of the exhaust gas recirculation turbocharger, the first end of the engine is connected to the first end of the exhaust gas recirculation turbocharger, the second end of the exhaust gas recirculation turbocharger is connected to the first end of the exhaust gas recirculation valve, the second end of the exhaust gas recirculation valve is connected to the first end of the exhaust gas cooler, and the second end of the exhaust gas cooler is connected to the second end of the exhaust gas recirculation filter.

[0041] Specifically, the aforementioned air filter is used to filter impurities in the intake air, and typically consists of a filter element and a housing. The aforementioned engine can be a gasoline engine, diesel engine, or natural gas engine, but is not limited to these. The aforementioned exhaust valve can be a normally open valve, but is not limited to these. The aforementioned exhaust gas treatment assembly can include a catalytic converter to reduce the content of harmful gases in the exhaust gas produced by the engine; the aforementioned catalytic converter can be a three-way catalytic converter, but is not limited to these. After the aforementioned catalytic converter, a post-catalytic converter exhaust pipe, a Gasline Particulate Filter (GPF), and a muffler can be connected. The aforementioned GPF can be used to capture particulate matter in vehicle exhaust gas, such as carbon black, organic matter, and sulfides, to reduce environmental pollution.

[0042] The aforementioned exhaust gas recirculation (EGR) filter can be used to intercept carbon particles and other contaminants in exhaust gas. The EGR filter allows for bidirectional flow, such as through filter screens, but is not limited to this. The aforementioned exhaust gas cooler is used to cool the gas. For example, after the exhaust gas generated by the engine enters the EGR filter through the exhaust valve, the exhaust gas cooler cools the filtered engine exhaust gas. Another example is when the EGR device needs cleaning; the air filter filters the intake air, which is then pressurized by the EGR turbocharger, passes through the EGR valve, and is subsequently cooled by the exhaust gas cooler before being blown into the EGR filter.

[0043] The opening degree of the aforementioned exhaust gas recirculation valve is adjustable. The exhaust gas recirculation valve can be a normally closed valve, but is not limited to this. The aforementioned exhaust gas recirculation booster can perform both forward and reverse boosting. Forward boosting involves drawing in exhaust gas from the pipe connected to the exhaust gas recirculation valve, boosting the exhaust gas, and then blowing it into the pipe connected to the air filter. Reverse boosting involves boosting the air drawn in from the outside by the air filter and blowing it into the pipe connected to the exhaust gas recirculation valve.

[0044] It should be noted that the above-mentioned exhaust gas recirculation booster can also not boost the gas, that is, the gas simply passes through the exhaust gas recirculation booster, and the gas pressure after passing through the exhaust gas recirculation booster is the same as the gas pressure before passing through the exhaust gas recirculation booster.

[0045] The air filter, engine, and exhaust gas recirculation turbocharger mentioned above can be connected via an intake tee pipe, thereby mixing the fresh air drawn in by the air filter with the exhaust gas provided by the exhaust gas recirculation turbocharger and then inputting it into the engine.

[0046] The aforementioned exhaust valve, exhaust gas treatment component, and exhaust gas recirculation filter can be connected through an exhaust tee pipe. This allows for the partial introduction of exhaust gas discharged from the exhaust valve into the exhaust gas treatment component for purification and discharge, and the partial introduction into the exhaust gas recirculation filter for filtration, so as to recycle the exhaust gas.

[0047] In an optional embodiment, the pipe connecting the exhaust valve to the engine can be referred to as the exhaust pipe before the exhaust valve. The exhaust pipe before the exhaust valve, the exhaust valve, and the exhaust tee pipe can then be coupled to obtain an exhaust assembly. Figure 2 This is a schematic diagram of an exhaust assembly according to one embodiment of the present invention, that is, a structural schematic diagram of an exhaust assembly, such as... Figure 2 As shown, the first end of the exhaust assembly (i.e. Figure 2 1) can be connected to the engine, the second end of the exhaust assembly (i.e. Figure 2 2) can be connected to the exhaust gas recirculation filter, the third end of the exhaust assembly (i.e.Figure 2 3) can be connected to the exhaust gas treatment assembly, and the exhaust valve in the exhaust assembly (i.e. Figure 2 4) can be used to transmit exhaust gases produced by the engine. The front view, cross-sectional view, and top view of the above exhaust assembly are shown below. Figure 3 , 4 As shown in Figure 5.

[0048] The aforementioned exhaust gas recirculation device draws gas before the exhaust gas treatment components, which can effectively reduce the vibration of the exhaust gas recirculation pipeline, thereby preventing pipeline rupture. Furthermore, the aforementioned exhaust gas recirculation device can actively pressurize the exhaust gas, thereby improving the exhaust gas recirculation efficiency. In addition, the aforementioned exhaust gas recirculation device can also easily clean the exhaust gas recirculation pipeline and exhaust gas recirculation filter without the need for manual disassembly and cleaning of the aforementioned exhaust gas recirculation device.

[0049] According to one embodiment of the present invention, a method for controlling waste gas recirculation applied to the above-mentioned waste gas recirculation device is also provided. Figure 6 This is a flowchart of an exhaust gas recirculation control method according to one embodiment of the present invention, such as... Figure 6 As shown, the method includes:

[0050] Step S62: Obtain the engine status information of the target vehicle, wherein the engine status information is used to determine the engine speed and charging volume.

[0051] In step S62 above, the engine status information of the target vehicle can be obtained.

[0052] Specifically, the engine status information mentioned above is used to determine the engine speed and air volume.

[0053] Step S64: Determine the operating mode of the exhaust gas recirculation device of the target vehicle based on the engine status information.

[0054] In step S62 above, after obtaining the engine status information of the target vehicle, the working mode of the exhaust gas recirculation device of the target vehicle can be determined based on the engine status information.

[0055] Specifically, the operating mode of the exhaust gas recirculation device in the vehicle can be determined based on the engine speed and the amount of air intake. The operating modes of the exhaust gas recirculation device can include exhaust gas recirculation mode, exhaust gas non-recirculation mode, and clean mode.

[0056] In response to the engine speed being within a first speed range and the engine's air volume being within a second air volume range, the operating mode of the exhaust gas recirculation device in the vehicle is determined to be exhaust gas recirculation mode; in response to the engine speed being within a second speed range and the engine's air volume being within a second air volume range, the operating mode of the exhaust gas recirculation device in the vehicle is determined to be exhaust gas non-recirculation mode; in response to the engine speed being a first preset threshold, the operating mode of the exhaust gas recirculation device in the vehicle is determined to be clean mode.

[0057] For example, when the engine speed is 2000 r / min and the engine load is determined to be 60% based on the engine's air intake, it is determined that the vehicle needs to perform exhaust gas recirculation, and the operating mode of the exhaust gas recirculation device in the vehicle is determined to be exhaust gas recirculation mode.

[0058] For another example, when the engine speed is 1000 r / min and the engine load is determined to be 10% based on the engine's air intake, it is determined that the vehicle does not need exhaust gas recirculation, and the exhaust gas recirculation device in the vehicle is determined to operate in exhaust gas non-recirculation mode.

[0059] For another example, when the engine speed is 0 r / min, it is determined that the vehicle does not need exhaust gas recirculation, and the exhaust gas recirculation device in the vehicle is set to clean mode.

[0060] Step S66: Control the exhaust gas recirculation device to perform the target operation corresponding to the working mode.

[0061] In step S66 above, after determining the working mode of the exhaust gas recirculation device of the target vehicle based on the engine status information, the exhaust gas recirculation device can be controlled to perform the target operation corresponding to the working mode.

[0062] For example, when the exhaust gas recirculation (EGR) system is in EGR mode, the exhaust valve in the EGR system can be opened, allowing the EGR filter in the EGR system to filter a portion of the engine exhaust gas, and the exhaust gas treatment components in the EGR system to purify a portion of the engine exhaust gas before discharging the purified exhaust gas. The filtered engine exhaust gas is then cooled in the recirculating cooler to obtain cooled gas. Subsequently, the EGR valve in the EGR system is controlled to open, allowing the cooled gas to enter the EGR turbocharger in the EGR system. When it is necessary to pressurize the cooled gas, the target pressure value of the cooled gas is determined based on the vehicle's operating status information. The cooled gas is then pressurized in the EGR turbocharger to obtain pressurized gas, which is then mixed with the gas drawn in by the air filter before entering the engine.

[0063] For another example, when the exhaust gas recirculation device is in the non-recirculation mode, the exhaust valve in the exhaust gas recirculation device can be opened and the exhaust gas recirculation valve in the exhaust gas recirculation device can be closed, and the exhaust gas recirculation turbocharger can be stopped to allow the engine exhaust gas to pass through the exhaust valve and then be purified by the exhaust gas treatment components before being discharged.

[0064] For example, when the exhaust gas recirculation device is in cleaning mode, it can determine whether the current cleaning mode is active or passive. In active cleaning mode, the exhaust gas recirculation device actively performs cleaning. In passive cleaning mode, the exhaust gas recirculation device does not actively perform cleaning; instead, it only performs cleaning when the user confirms cleaning by triggering the cleaning switch. The specific cleaning operations will be explained in detail in later embodiments.

[0065] Based on the above steps S62 to S66, by acquiring the engine status information of the target vehicle, the working mode of the exhaust gas recirculation device of the target vehicle is determined based on the engine status information, and finally the exhaust gas recirculation device is controlled to perform the target operation corresponding to the working mode, thereby achieving the purpose of exhaust gas recirculation. This achieves the technical effect of improving the exhaust gas recirculation efficiency of the vehicle and simplifying the cleaning operation of the exhaust gas recirculation system, thus solving the technical problems of low exhaust gas recirculation efficiency and difficult cleaning of the exhaust gas recirculation system in related technologies.

[0066] Optionally, in step S66 above, responding to the determination that the operating mode of the exhaust gas recirculation device of the target vehicle is exhaust gas recirculation mode based on engine status information, controlling the exhaust gas recirculation device to perform the target operation corresponding to the operating mode includes:

[0067] Step S661: Determine the target exhaust gas recirculation rate based on engine status information.

[0068] Specifically, when the vehicle's exhaust gas recirculation (EGR) device is in EGR mode, the target EGR rate can be determined based on the engine status information.

[0069] Step S662: Based on the first opening information, the exhaust valve in the exhaust gas recirculation device is controlled to open, so that the exhaust gas recirculation filter in the exhaust gas recirculation device filters the first volume of engine exhaust gas, and the exhaust gas treatment component in the exhaust gas recirculation device purifies the second volume of engine exhaust gas, and the purified engine exhaust gas is discharged. The first opening information is determined according to the target exhaust gas recirculation rate.

[0070] Specifically, the opening degree of the exhaust valve can be determined based on the target exhaust gas recirculation rate. When the target exhaust gas recirculation rate is high, the opening degree of the exhaust valve is larger. Therefore, the opening degree of the exhaust valve can be adjusted according to the target exhaust gas recirculation rate so that the exhaust gas recirculation filter in the exhaust gas recirculation device filters part of the engine exhaust gas, and the exhaust gas treatment component in the exhaust gas recirculation device purifies part of the engine exhaust gas, and then the purified engine exhaust gas is discharged.

[0071] Step S663: Cool the filtered first volume of engine exhaust gas to obtain the first cooling gas.

[0072] Specifically, after the exhaust gas recirculation filter in the exhaust gas recirculation device filters part of the engine exhaust gas, the filtered part of the engine exhaust gas can be cooled in the exhaust gas cooler in the exhaust gas recirculation assembly to obtain the first cooling gas.

[0073] Step S664: Based on the second opening information, control the exhaust gas recirculation valve in the exhaust gas recirculation device to open, so that the first cooling gas enters the exhaust gas recirculation booster in the exhaust gas recirculation device, wherein the second opening information is determined according to the target exhaust gas recirculation rate.

[0074] Specifically, the opening degree of the exhaust gas recirculation valve can be determined based on the target exhaust gas recirculation rate. When the target exhaust gas recirculation rate is high, the opening degree of the exhaust gas recirculation valve should be larger. Therefore, the opening degree of the exhaust gas recirculation valve can be adjusted according to the target exhaust gas recirculation rate to allow the first cooling gas to enter the exhaust gas recirculation booster in the exhaust gas recirculation device.

[0075] Step S665: In response to the determination of gas pressurization demand based on the target exhaust gas recirculation rate, the first cooling gas is pressurized based on the first pressure value to obtain the first gas, so that the first gas is mixed with the gas drawn in by the air filter and then enters the engine. The first pressure value is determined according to the operating status information of the target vehicle.

[0076] Specifically, when the target exhaust gas recirculation rate is within the first threshold range, it is determined that the exhaust gas needs to be pressurized. Based on information such as vehicle speed and whether it is uphill, it is determined that the first cooling gas needs to be increased to a first pressure value. Then, the first cooling gas is pressurized in the exhaust gas recirculation turbocharger in the exhaust gas recirculation device to obtain the first gas. Subsequently, the first gas is mixed with the gas drawn in by the air filter and enters the engine, thereby realizing exhaust gas recirculation.

[0077] For example, when the engine speed is 2000 rpm and the engine load is determined to be 60% based on the engine's air intake, exhaust gas recirculation (EGR) is required. If the target EGR rate is determined to be high based on the engine speed and air intake, the EGR valve and exhaust valve are opened to 100%, and the EGR turbocharger is controlled to run forward at 2000 rpm to begin forward boosting. At this point, exhaust gas generated by the engine enters the exhaust pipe before the exhaust valve. After passing through the exhaust valve, part of the exhaust gas is purified by the exhaust gas treatment components and discharged, while the rest is filtered by the EGR filter, then cooled in the exhaust gas cooler, and then boosted in the EGR turbocharger. Finally, it mixes with fresh air drawn in by the air filter and enters the engine.

[0078] For example, when the engine speed is 3000 rpm and the engine load is determined to be 80% based on the engine's air intake, exhaust gas recirculation (EGR) is required. If the target EGR rate is determined to be low based on the engine speed and air intake, the EGR valve is opened to 40%, the exhaust valve is opened to 100%, and the EGR turbocharger is kept off and does not pressurize. At this time, exhaust gas generated by the engine enters the exhaust pipe before the exhaust valve. After passing through the exhaust valve, part of the exhaust gas is purified by the exhaust gas treatment components and discharged, while the rest is filtered by the EGR filter, then enters the exhaust gas cooler for cooling, then passes through the EGR turbocharger, and finally mixes with fresh air drawn in by the air filter before entering the engine.

[0079] Based on steps S661 to S665 above, the target exhaust gas recirculation rate is determined based on engine status information. Then, based on the first opening information, the exhaust valve in the exhaust gas recirculation device is opened to allow the exhaust gas recirculation filter in the device to filter the first volume of engine exhaust gas, and the exhaust gas treatment component in the device to purify the second volume of engine exhaust gas. The purified engine exhaust gas is then discharged, thereby cooling the filtered first volume of engine exhaust gas to obtain the first cooling gas. Subsequently, based on the second opening information, the exhaust gas recirculation valve in the device is opened to allow the first cooling gas to enter the exhaust gas recirculation turbocharger. Finally, in response to the determination of a gas pressurization demand based on the target exhaust gas recirculation rate, the first cooling gas is pressurized based on a first pressure value to obtain the first gas. This first gas is then mixed with the gas drawn in by the air filter before entering the engine, thus achieving exhaust gas recirculation with high efficiency.

[0080] It should be noted that when the operating mode of the exhaust gas recirculation (EGR) device of the target vehicle is determined to be non-recirculation mode based on engine status information (for example, the engine speed is 1000 r / min and the load is 10%, or the engine speed is 1200 r / min and the load is 15%, but not limited to these), the EGR valve is closed, the EGR turbocharger is stopped, and the exhaust valve is opened to 100%. At this time, the exhaust gas generated by the engine passes through the exhaust valve, is purified by the exhaust gas treatment components, and is then discharged.

[0081] Optionally, in step S66 above, responding to the determination that the operating mode of the exhaust gas recirculation device of the target vehicle is clean mode based on engine status information, controlling the exhaust gas recirculation device to perform the target operation corresponding to the operating mode includes:

[0082] Step S666: In response to the target vehicle's exhaust gas recirculation device currently operating in active cleaning mode, control the exhaust gas recirculation device to perform the target operation corresponding to the cleaning mode.

[0083] Specifically, when the exhaust gas recirculation device is in cleaning mode, it can determine whether the current cleaning mode is active or passive. When the current cleaning mode is active, the exhaust gas recirculation device actively performs cleaning. The specific cleaning operation will be explained in detail in later embodiments.

[0084] Step S667: In response to the target vehicle's exhaust gas recirculation device currently operating in passive cleaning mode, the exhaust gas recirculation device is controlled to perform the target operation corresponding to the cleaning mode based on the user's trigger operation of the cleaning switch.

[0085] Specifically, when the current cleaning mode is passive cleaning mode, the exhaust gas recirculation device will not actively perform cleaning. Instead, it will only perform cleaning when the user confirms cleaning by triggering the cleaning switch. The specific cleaning operation will be explained in detail in later embodiments.

[0086] Based on steps S666 to S667 above, by responding to the target vehicle's current operating mode being active cleaning mode, the exhaust gas recirculation device is controlled to perform the target operation corresponding to the cleaning mode; and by responding to the target vehicle's current operating mode being passive cleaning mode, the exhaust gas recirculation device is controlled to perform the target operation corresponding to the cleaning mode based on the user's trigger operation of the cleaning switch, thus enabling the exhaust gas recirculation device to be cleaned in multiple ways.

[0087] Optionally, in step S66 above, controlling the exhaust gas recirculation device to perform the target operation corresponding to the cleaning mode includes:

[0088] Step S6681: The air drawn in by the air filter in the exhaust gas recirculation device is pressurized by the exhaust gas recirculation booster in the exhaust gas recirculation device to obtain the second gas.

[0089] Specifically, when the exhaust gas recirculation device is in cleaning mode, the exhaust gas recirculation booster in the device can be used to pressurize the air drawn in by the air filter to obtain a second gas.

[0090] Step S6682: Control the opening of the exhaust gas recirculation valve in the exhaust gas recirculation device and close the exhaust valve in the exhaust gas recirculation device to allow the second gas to enter the exhaust gas cooler in the exhaust gas recirculation device.

[0091] Specifically, the exhaust gas recirculation valve in the exhaust gas recirculation device is fully opened, and the exhaust valve in the exhaust gas recirculation device is closed, so that the pressurized gas enters the exhaust gas cooler in the exhaust gas recirculation device.

[0092] Step S6683: Cool the second gas to obtain a second cooling gas, so that the second cooling gas can clean the exhaust gas recirculation filter in the exhaust gas recirculation device.

[0093] Specifically, the pressurized gas is cooled in the aforementioned exhaust gas cooler to obtain cooled gas, and the cooled gas is blown into the exhaust gas circulation filter in the exhaust gas circulation device, thereby purifying pollutants such as carbon particles in the exhaust gas circulation filter through the exhaust gas treatment components and discharging them after purification.

[0094] For example, if the engine suddenly stops running at 0 RPM, it enters the cleaning mode. In the active cleaning mode, the exhaust gas recirculation valve is opened to 100%, the exhaust valve is closed, and the exhaust gas recirculation turbocharger is operated to the maximum reverse speed of 10000 r / min to start reverse boosting. The continuous operating time t of the exhaust gas recirculation turbocharger is recorded (the maximum continuous operating time T = 100 s is set for the exhaust gas recirculation turbocharger). Fresh air enters the exhaust gas recirculation turbocharger after being filtered by the air filter. After being boosted in the exhaust gas recirculation turbocharger, the air passes through the exhaust gas recirculation valve into the recirculating exhaust gas cooler. The boosted gas is then cooled in the recirculating exhaust gas cooler and then blown into the exhaust gas recirculation filter for flushing. The carbon particles and other pollutants in the exhaust gas recirculation filter are purified by the exhaust gas treatment components and discharged after purification. When the continuous flushing time is t = 45 seconds, the engine suddenly starts. Although t < T at this time, the exhaust gas recirculation turbocharger is stopped, the exhaust valve is opened to 100%, the exhaust gas recirculation valve is closed, and the recorded continuous running time of the exhaust gas recirculation turbocharger is reset to zero, i.e., t = 0.

[0095] For another example, if the engine suddenly stops running at 0 RPM, it enters cleaning mode. In passive cleaning mode, when the user triggers the cleaning switch to confirm cleaning, the exhaust gas recirculation valve opens to 100%, the exhaust valve closes, and the exhaust gas recirculation turbocharger runs to its maximum reverse speed of 10,000 r / min, starting reverse boosting. The continuous running time t of the exhaust gas recirculation turbocharger is recorded (the maximum continuous running time T = 60 s is set). Fresh air, after being filtered by the air filter, enters the exhaust gas recirculation turbocharger, where it is boosted and then passes through the exhaust gas recirculation valve into the recirculating exhaust gas cooler. The boosted gas is then cooled in the recirculating exhaust gas cooler and subsequently blown into the exhaust gas recirculation filter for flushing. The carbon particles and other pollutants in the exhaust gas recirculation filter are purified by the exhaust gas treatment components and then discharged. After 60 seconds of continuous flushing, the exhaust gas recirculation booster automatically stops working, the exhaust valve opens to 100%, the exhaust gas recirculation valve is closed, and the recorded continuous running time of the exhaust gas recirculation booster is reset to zero, i.e., t=0.

[0096] Based on the above steps S6681 to S6683, by using the exhaust gas recirculation booster in the exhaust gas recirculation device to pressurize the air drawn into the air filter in the exhaust gas recirculation device to obtain a second gas, the exhaust gas recirculation valve in the exhaust gas recirculation device is opened and the exhaust valve in the exhaust gas recirculation device is closed, so that the second gas enters the exhaust gas cooler in the exhaust gas recirculation device. Finally, the second gas is cooled to obtain a second cooling gas, which cleans the exhaust gas recirculation filter in the exhaust gas recirculation device. This allows for easy cleaning of the exhaust gas recirculation pipes and exhaust gas recirculation filters without the need for manual disassembly and cleaning of the exhaust gas recirculation device.

[0097] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0098] This invention also provides an exhaust gas recirculation control device for implementing the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0099] Figure 7 This is a structural block diagram of an exhaust gas recirculation control device according to one embodiment of the present invention, such as... Figure 7 As shown, the device includes: an acquisition module 701 for acquiring engine status information of the target vehicle, wherein the engine status information is used to determine the engine speed and charge volume; a determination module 702 for determining the operating mode of the exhaust gas recirculation device of the target vehicle based on the engine status information; and a control module 703 for controlling the exhaust gas recirculation device to perform the target operation corresponding to the operating mode.

[0100] Optionally, the control module 703 is further configured to: determine a target exhaust gas recirculation rate based on engine status information; control the exhaust valve in the exhaust gas recirculation device to open based on a first opening information, so that the exhaust gas recirculation filter in the exhaust gas recirculation device filters a first volume of engine exhaust gas, and the exhaust gas treatment component in the exhaust gas recirculation device purifies a second volume of engine exhaust gas, and discharges the purified engine exhaust gas, wherein the first opening information is determined based on the target exhaust gas recirculation rate; cool the filtered first volume of engine exhaust gas to obtain a first cooling gas; control the exhaust gas recirculation valve in the exhaust gas recirculation device to open based on a second opening information, so that the first cooling gas enters the exhaust gas recirculation turbocharger in the exhaust gas recirculation device, wherein the second opening information is determined based on the target exhaust gas recirculation rate; respond to the determination of a gas pressurization demand based on the target exhaust gas recirculation rate, pressurize the first cooling gas based on a first pressure value to obtain a first gas, so that the first gas mixes with the gas drawn in by the air filter and enters the engine, wherein the first pressure value is determined based on the target vehicle's operating status information.

[0101] Optionally, the control module 703 is also configured to control the exhaust gas recirculation device to perform the target operation corresponding to the cleaning mode in response to the current operating mode of the exhaust gas recirculation device of the target vehicle being active cleaning mode; and to control the exhaust gas recirculation device to perform the target operation corresponding to the cleaning mode according to the user's trigger operation of the cleaning switch in response to the current operating mode of the exhaust gas recirculation device of the target vehicle being passive cleaning mode.

[0102] Optionally, the control module 703 is also used to pressurize the air drawn into the air filter in the exhaust gas recirculation device using the exhaust gas recirculation booster in the exhaust gas recirculation device to obtain a second gas; control the exhaust gas recirculation valve in the exhaust gas recirculation device to open and close the exhaust valve in the exhaust gas recirculation device to allow the second gas to enter the exhaust gas cooler in the exhaust gas recirculation device; and cool the second gas to obtain a second cooling gas so that the second cooling gas can clean the exhaust gas recirculation filter in the exhaust gas recirculation device.

[0103] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0104] According to one embodiment of the present invention, a non-volatile storage medium is also provided, wherein a computer program is stored in the storage medium, and the computer program is configured to execute the steps in any of the above method embodiments when running.

[0105] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0106] Step S1: Obtain the engine status information of the target vehicle, wherein the engine status information is used to determine the engine speed and charging volume.

[0107] Step S2: Determine the operating mode of the exhaust gas recirculation device of the target vehicle based on the engine status information;

[0108] Step S3: Control the exhaust gas recirculation device to perform the target operation corresponding to the working mode.

[0109] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing computer programs, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0110] According to one embodiment of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0111] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0112] Step S1: Obtain the engine status information of the target vehicle, wherein the engine status information is used to determine the engine speed and charging volume.

[0113] Step S2: Determine the operating mode of the exhaust gas recirculation device of the target vehicle based on the engine status information;

[0114] Step S3: Control the exhaust gas recirculation device to perform the target operation corresponding to the working mode.

[0115] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated here.

[0116] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0117] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0118] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0119] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0120] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0121] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0122] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for controlling waste gas recirculation, applied to a waste gas recirculation device, characterized in that, The exhaust gas recirculation device includes: an air filter, an engine, an exhaust valve, an exhaust gas treatment component, an exhaust gas recirculation filter, and an exhaust gas recirculation component. A first end of the air filter is connected to a first end of the engine of the target vehicle. The first end of the air filter is also connected to the exhaust gas recirculation component. The exhaust gas recirculation component is connected to a first end of the engine of the target vehicle. A second end of the engine of the target vehicle is connected to a first end of the exhaust valve. A second end of the exhaust valve is connected to a first end of the exhaust gas treatment component. A second end of the exhaust valve is connected to a first end of the exhaust gas recirculation filter. A first end of the exhaust gas treatment component is connected to a first end of the exhaust gas recirculation filter. The second end of the exhaust gas recirculation filter is connected to the exhaust gas recirculation component. The exhaust gas recirculation control method includes: Obtain engine status information of the target vehicle, wherein the engine status information is used to determine the engine speed and charge volume; The operating mode of the exhaust gas recirculation device of the target vehicle is determined based on the engine status information; Control the waste gas recirculation device to perform the target operation corresponding to the working mode; The response determines that the operating mode of the exhaust gas recirculation (EGR) device of the target vehicle is EGR mode based on the engine status information. The step of controlling the EGR device to perform the target operation corresponding to the operating mode includes: determining a target EGR rate based on the engine status information; controlling the exhaust valve in the EGR device to open based on first opening information, so that the EGR filter in the EGR device filters a first volume of engine exhaust gas, and the exhaust gas treatment component in the EGR device purifies a second volume of engine exhaust gas, and then discharges the purified engine exhaust gas, wherein the first opening information is determined based on the target EGR rate; The filtered first volume of engine exhaust gas is cooled to obtain a first cooling gas; based on a second opening information, the exhaust gas recirculation valve in the exhaust gas recirculation device is controlled to open, so that the first cooling gas enters the exhaust gas recirculation turbocharger in the exhaust gas recirculation device, wherein the second opening information is determined according to the target exhaust gas recirculation rate; in response to the determination of a gas pressurization demand based on the target exhaust gas recirculation rate, the first cooling gas is pressurized based on a first pressure value to obtain a first gas, so that the first gas mixes with the gas drawn in by the air filter and enters the engine, wherein the first pressure value is determined according to the operating status information of the target vehicle.

2. The waste gas recirculation control method according to claim 1, characterized in that, The exhaust gas recirculation assembly includes an exhaust gas recirculation turbocharger, an exhaust gas recirculation valve, and an exhaust gas cooler. The exhaust valve is used to transmit the exhaust gas generated by the engine. The exhaust gas treatment assembly is used to purify the exhaust gas generated by the engine and discharge the purified exhaust gas. The exhaust gas recirculation filter is used to filter the exhaust gas to be recirculated. The exhaust gas recirculation assembly is used to cool and pressurize the filtered exhaust gas to be recirculated.

3. The waste gas recirculation control method according to claim 2, characterized in that, The first end of the air filter is connected to the first end of the exhaust gas recirculation turbocharger, the first end of the engine is connected to the first end of the exhaust gas recirculation turbocharger, the second end of the exhaust gas recirculation turbocharger is connected to the first end of the exhaust gas recirculation valve, the second end of the exhaust gas recirculation valve is connected to the first end of the exhaust gas cooler, and the second end of the exhaust gas cooler is connected to the second end of the exhaust gas recirculation filter.

4. The waste gas recirculation control method according to claim 1, characterized in that, The response determines, based on the engine status information, that the operating mode of the exhaust gas recirculation device of the target vehicle is clean mode. The step of controlling the exhaust gas recirculation device to perform the target operation corresponding to the operating mode includes: In response to the fact that the current working mode of the exhaust gas recirculation device of the target vehicle is active cleaning mode, the exhaust gas recirculation device is controlled to perform the target operation corresponding to the cleaning mode; In response to the target vehicle's exhaust gas recirculation device currently operating in passive cleaning mode, the device is controlled to perform the target operation corresponding to the cleaning mode based on the user's triggering operation of the cleaning switch.

5. The waste gas recirculation control method according to claim 4, characterized in that, The target operation of controlling the exhaust gas recirculation device to perform the cleaning mode includes: The air drawn in by the air filter in the exhaust gas recirculation device is pressurized by the exhaust gas recirculation booster in the exhaust gas recirculation device to obtain a second gas; The exhaust gas recirculation valve in the exhaust gas recirculation device is opened, and the exhaust valve in the exhaust gas recirculation device is closed, so that the second gas enters the exhaust gas cooler in the exhaust gas recirculation device. The second gas is cooled to obtain a second cooling gas, which is then used to clean the exhaust gas recirculation filter in the exhaust gas recirculation device.

6. A waste gas recirculation control device, characterized in that, The apparatus performs the exhaust gas recirculation control method according to any one of claims 1 to 5, and the apparatus comprises: An acquisition module is used to acquire engine status information of a target vehicle, wherein the engine status information is used to determine the engine speed and charge volume. The determination module is used to determine the operating mode of the exhaust gas recirculation device of the target vehicle based on the engine status information; The control module is used to control the exhaust gas recirculation device to perform the target operation corresponding to the working mode.

7. A non-volatile storage medium, characterized in that, The storage medium stores a computer program, wherein the computer program is configured to execute the exhaust gas recirculation control method according to any one of claims 1 to 5 when it is run.

8. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to run the computer program to perform the exhaust gas recirculation control method according to any one of claims 1 to 5.

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