Vehicle waste gas treatment system, method and device and electronic equipment

Abstract

The invention discloses a vehicle waste gas treatment system, method and device and electronic equipment. The method comprises the steps that initial control parameters, first humidity values and second humidity values of a plurality of waste gas control valves and the proportion value of the first gas inflow and the second gas inflow in a waste gas utilization line are obtained, and the initial control parameters are used for representing the initial opening degree of the waste gas control valves; the first humidity value is used for representing the humidity value of external intake air, and the second humidity value is used for representing the humidity value of gas entering a vehicle engine; and based on the first humidity value and the second humidity value, the initial opening degree of the first waste gas control valve and the initial opening degree of the second waste gas control valve in the initial control parameters are subjected to feedback adjustment, and based on the proportion value, the initial opening degree of the third waste gas control valve in the initial control parameters is subjected to feedback adjustment. The technical problem that in the related technology, liquid water is separated out in the vehicle exhaust gas recirculation process, so that the fuel economy and the working stability of a vehicle engine are reduced is solved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a vehicle exhaust gas treatment system, method, device and electronic equipment. Background Art

[0002] Exhaust Gas Recirculation (EGR) technology is an important energy-saving and emission-reduction measure in the field of modern internal combustion engines. This technology reintroduces part of the exhaust gas discharged by the engine into the intake pipe, mixes it with fresh air, and then re-enters the cylinder to participate in the combustion process. Not only can the heat capacity of the vehicle's exhaust gas be used to cool the combustion chamber, thereby increasing the knock boundary, allowing the engine to use a higher compression ratio, thereby significantly improving fuel economy while maintaining power performance, but EGR technology can also effectively reduce the pumping loss of the vehicle engine, further reducing fuel consumption.

[0003] However, the existing EGR technology has the following problems: (1) The vehicle engine exhaust contains a large amount of water vapor. When the EGR rate is too high, the water vapor in the intake system will reach an oversaturated state, and then precipitate liquid water, causing the liquid water to enter the engine combustion chamber with the intake air, seriously affecting the fuel economy; (2) The precipitated liquid water will mix with the engine oil brought into the intake air by the crankcase ventilation system under high load conditions to form an emulsion. The accumulation of the emulsion will not only cause poor engine ventilation, but also affect the normal operation of the vehicle engine, thereby reducing the stability of vehicle operation.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] Embodiments of the present invention provide a vehicle exhaust gas treatment system, method, device and electronic equipment to at least solve the technical problem in the related art that the fuel economy and working stability of the vehicle engine are reduced due to the precipitation of liquid water during the vehicle exhaust gas recirculation process.

[0006] According to one embodiment of the present invention, a vehicle exhaust gas treatment system is provided, comprising: an exhaust gas generation circuit, used to control a vehicle engine to generate initial vehicle exhaust gas; an exhaust gas water content reduction circuit, whose input end is connected to the first output end of the exhaust gas generation circuit, whose first output end is connected to the second output end of the exhaust gas generation circuit, used to reduce the water content of the initial vehicle exhaust gas to obtain target vehicle exhaust gas. An exhaust gas utilization circuit, whose first input end is connected to the second output end of the exhaust gas water content reduction circuit, whose output end is connected to the input end of the exhaust gas generation circuit, used to transport the target vehicle exhaust gas to the combustion chamber of each cylinder of the vehicle engine to participate in fuel combustion.

[0007] Optionally, the exhaust gas water content reduction circuit includes: a first cooler, whose input end is connected to the first output end of the exhaust gas generation circuit, for pre-cooling the initial vehicle exhaust gas to obtain cooled vehicle exhaust gas; a first exhaust gas control valve and a second exhaust gas control valve, the input ends of the first exhaust gas control valve and the second exhaust gas control valve are respectively connected to the output end of the first cooler, for controlling the flow of the cooled vehicle exhaust gas entering the second cooler; a second cooler, whose input end is connected to the output end of the second exhaust gas control valve, for cooling the cooled exhaust gas again to obtain target vehicle exhaust gas, and whose second output end is connected to the second output end of the exhaust gas generation circuit, for discharging moisture precipitated during the cooling process; a third exhaust gas control valve, whose input end is connected to the second cooler and the output end of the second exhaust gas controller, and whose output end is connected to the first input end of the exhaust gas utilization circuit, for controlling the flow of the target vehicle exhaust gas entering the exhaust gas utilization circuit.

[0008] Optionally, the exhaust gas utilization circuit includes: a first humidity sensor, arranged between a first input end of the exhaust gas utilization circuit and a second input end of the exhaust gas utilization circuit, for measuring the humidity value of the external intake air; a supercharger compressor, whose input end is connected to the first output end of the exhaust gas water content reduction circuit and the first input end of the exhaust gas utilization circuit, for pressurizing the mixed gas to obtain a pressurized mixed gas, wherein the mixed gas contains external intake air and target vehicle exhaust gas; an intercooler, whose input end is connected to the output end of the supercharger compressor, and whose output end is connected to the vehicle engine, for cooling the pressurized mixed gas to obtain a cooled mixed gas; a second humidity sensor, arranged between the intercooler and the vehicle engine, for obtaining the humidity value of the cooled mixed gas.

[0009] According to one embodiment of the present invention, a vehicle exhaust treatment method is also provided, including: obtaining initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio of a first air intake volume to a second air intake volume in an exhaust utilization circuit, wherein the initial control parameters are used to represent the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to represent the humidity value of the external intake air, the second humidity value is used to represent the humidity value of the gas entering the vehicle engine, the first intake volume is used to represent the intake volume of the exhaust gas of a target vehicle in the exhaust utilization circuit, the second intake volume is used to represent the total intake volume in the exhaust utilization circuit, and the exhaust gas of the target vehicle is obtained after being processed by the exhaust gas water content reduction circuit; feedback adjustment is performed on the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and feedback adjustment is performed on the initial opening and closing degree of the third exhaust control valve in the initial control parameters based on the ratio value.

[0010] Optionally, feedback adjustment of the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value includes: in response to the first humidity value or the second humidity value being greater than a preset humidity threshold, adjusting the opening and closing degree of the first exhaust control valve to be less than or equal to a first preset valve threshold, and adjusting the opening and closing degree of the second exhaust control valve to be greater than the first preset valve threshold.

[0011] Optionally, feedback adjustment of the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value includes: in response to the first humidity value being less than or equal to a first preset humidity threshold, and the second humidity value being less than or equal to the preset humidity threshold, adjusting the opening and closing degree of the first exhaust control valve to be greater than the first preset valve threshold, and the opening and closing degree of the second exhaust control valve to be less than or equal to the first preset valve threshold.

[0012] Optionally, feedback-adjusting the initial opening degree of the third exhaust control valve in the initial control parameters based on the proportional value includes: in response to the proportional value being greater than or equal to a preset proportional threshold, adjusting the opening degree of the third exhaust control valve to be less than a second preset valve threshold.

[0013] According to one embodiment of the present invention, a vehicle exhaust treatment device is also provided, including: an acquisition module, used to acquire initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio value of a target vehicle exhaust gas and a mixed gas of a first intake volume and a second intake volume in an exhaust utilization circuit, wherein the initial control parameters are used to represent the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to represent the humidity value of the external intake air, the second humidity value is used to represent the humidity value of the gas entering the vehicle engine, the first intake volume is used to represent the intake volume of the target vehicle exhaust gas in the exhaust utilization circuit, the second intake volume is used to represent the total intake volume in the exhaust utilization circuit, and the target vehicle exhaust gas is obtained after being processed by the exhaust gas water content reduction circuit; a first adjustment module, used to feedback-adjust the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and a second adjustment module, used to feedback-adjust the initial opening and closing degree of the third exhaust control valve in the initial control parameters based on the ratio value.

[0014] Optionally, the first adjustment module is also used to: in response to the first humidity value or the second humidity value being greater than a preset humidity threshold, adjust the opening degree of the first exhaust control valve to be less than or equal to a first preset valve threshold, and the opening degree of the second exhaust control valve to be greater than the first preset valve threshold.

[0015] Optionally, the first adjustment module is also used to: in response to the first humidity value being less than or equal to a first preset humidity threshold, and the second humidity value being less than or equal to the preset humidity threshold, adjust the opening degree of the first exhaust control valve to be greater than the first preset valve threshold, and the opening degree of the second exhaust control valve to be less than or equal to the first preset valve threshold.

[0016] Optionally, the second regulating module is further configured to: in response to the ratio value being greater than or equal to a preset ratio threshold, adjust the opening degree of the third exhaust control valve to be less than a second preset valve threshold.

[0017] According to one embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the above-mentioned vehicle exhaust treatment method is executed when the program is running.

[0018] According to one embodiment of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein when the executable program runs, the device where the storage medium is located is controlled to execute the above-mentioned vehicle exhaust treatment method.

[0019] According to one embodiment of the present invention, a computer program product is also provided, including a computer program, and the computer program implements the above-mentioned vehicle exhaust gas treatment method when executed by a processor.

[0020] In an embodiment of the present invention, a method of obtaining initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio of the first air intake amount to the second air intake amount in the exhaust gas utilization circuit is adopted, and feedback adjustment is performed on the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and feedback adjustment is performed on the initial opening and closing degree of the third exhaust control valve in the initial control parameters based on the ratio value, thereby achieving the purpose of reducing the liquid water precipitated in the vehicle exhaust gas by adding an exhaust gas water content reduction circuit during the control of exhaust gas recirculation to avoid the accumulation of emulsions formed by the liquid water precipitated in the vehicle exhaust gas and the engine oil, thereby achieving the technical effect of improving the fuel economy and working stability of the vehicle engine, and further solving the technical problem in the related art that the fuel economy and working stability of the vehicle engine are reduced due to the precipitation of liquid water in the vehicle exhaust gas recirculation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 is a schematic diagram of a vehicle exhaust treatment system according to one embodiment of the present invention;

[0023] Figure 2 A schematic diagram of another vehicle exhaust treatment system according to one embodiment of the present invention;

[0024] Figure 3 is a flow chart of a vehicle exhaust gas treatment method according to one embodiment of the present invention;

[0025] Figure 4 It is a structural block diagram of a vehicle exhaust gas treatment device according to one embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] According to an embodiment of the present invention, a method embodiment of a vehicle exhaust treatment method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0029] The method embodiment can be executed in an electronic device or a similar computing device including a memory and a processor. Taking running on a vehicle terminal as an example, the vehicle terminal may include one or more processors (the processor may include but is not limited to a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) chip, a microcontroller unit (MCU), a programmable logic device (Field Programmable Gate Array, FPGA), a neural network processor (Neural-network Processor Unit, NPU), a tensor processor (Tensor Processing Unit, TPU), an artificial intelligence (Artificial Intelligence, AI) type processor, etc.) and a memory for storing data. Optionally, the above-mentioned vehicle terminal may also include a transmission device, an input and output device, and a display device for communication functions. It can be understood by those skilled in the art that the above-mentioned structural description is only for illustration and does not limit the structure of the above-mentioned vehicle terminal. For example, the vehicle terminal may also include more or fewer components than the above-mentioned structural description, or have a configuration different from the above-mentioned structural description.

[0030] The memory can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the vehicle exhaust treatment method in the embodiment of the present invention. The processor executes various functional applications and data processing by running the computer program stored in the memory, that is, realizing the above-mentioned vehicle exhaust treatment method. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely arranged relative to the processor, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0031] The transmission device is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0032] The display device may be, for example, a touch screen type liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display may enable the user to interact with the user interface of the mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), and the user may interact with the GUI by finger contacts and / or gestures on the touch-sensitive surface. The human-computer interaction functions here may optionally include the following interactions: creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital videos, playing digital music and / or web browsing, etc. The executable instructions for executing the above human-computer interaction functions are configured / stored in a computer program product or readable storage medium executable by one or more processors.

[0033] According to an embodiment of the present invention, a vehicle exhaust gas treatment system is provided. Figure 1 is a schematic diagram of a vehicle exhaust treatment system according to one embodiment of the present invention. Figure 1 As shown, the system includes: an exhaust gas generating circuit (102), an exhaust gas water content reducing circuit (104) and an exhaust gas utilizing circuit (106).

[0034] An exhaust gas generating circuit (102) for controlling a vehicle engine to generate initial vehicle exhaust gas;

[0035] Specifically, the initial vehicle exhaust gas is used to characterize the vehicle exhaust gas generated due to the combustion of fuel in the combustion chamber of each cylinder of the vehicle engine.

[0036] Specifically, the exhaust gas generation circuit (102) includes combustion chambers of each cylinder of the engine, an exhaust manifold, a supercharger turbine and a post-processor, wherein the post-processor is connected to the outside. The post-processor includes but is not limited to: a catalytic converter, a particulate filter, a nitrogen oxide storage / reduction system, etc., which can convert harmful gases into harmless or low-harmful substances through different chemical reactions, so that the initial vehicle exhaust meets the emission standards.

[0037] Specifically, the initial vehicle exhaust gas is generated by the combustion of fuel in the combustion chamber of each cylinder of the engine. The initial vehicle exhaust gas in the combustion chamber of each cylinder of the engine is discharged through the exhaust manifold, wherein the exhaust manifold is responsible for collecting the exhaust gas generated by each combustion chamber and guiding it to the next stage of treatment. When the initial vehicle exhaust gas flows through the supercharger turbine, the turbine is driven to rotate. On the one hand, a part of the exhaust gas in the initial vehicle exhaust gas is discharged to the outside after being processed by the post-processor, and the remaining initial vehicle exhaust gas is pushed to the next stage. On the other hand, the rotation of the turbine drives the supercharger compressor to compress more gas to transport it to the combustion chamber of each cylinder of the vehicle engine, thereby improving the fuel combustion efficiency in the combustion chamber of each cylinder of the vehicle engine. The supercharger turbine not only helps to improve the power and torque of the vehicle engine, but also can reduce some pollutants in the initial vehicle exhaust gas.

[0038] The exhaust gas water content reducing circuit (104) has an input end connected to the first output end of the exhaust gas generating circuit, and a first output end connected to the second output end of the exhaust gas generating circuit, and is used to reduce the water content of the initial vehicle exhaust gas to obtain the target vehicle exhaust gas.

[0039] Specifically, the input end of the exhaust gas water content reduction circuit (104) is connected to the first output end of the exhaust gas generation circuit (102), ensuring that the initial exhaust gas generated by the vehicle engine can smoothly enter the processing circuit to reduce the water content of the initial vehicle exhaust gas, obtain the target vehicle exhaust gas, and effectively remove the water in the initial vehicle exhaust gas to avoid the accumulation of emulsions formed by liquid water precipitated in the vehicle exhaust gas and engine oil, thereby improving the fuel economy and working stability of the vehicle engine. The first output end of the exhaust gas water content reduction circuit (104) is connected to the second output end of the exhaust gas generation circuit (102), and the liquid water precipitated in the exhaust gas water content reduction circuit (104) is discharged to the outside to avoid the accumulation of liquid water in the exhaust gas water content reduction circuit (104), thereby ensuring the smooth operation of the exhaust gas water content reduction circuit (104).

[0040] The exhaust gas utilization circuit (106) has a first input end connected to the second output end of the exhaust gas water content reduction circuit, and an output end connected to the input end of the exhaust gas generation circuit, and is used to transport the target vehicle exhaust gas to the combustion chambers of each cylinder of the vehicle engine to participate in fuel combustion.

[0041] Specifically, by delivering the target vehicle exhaust gas to the combustion chambers of each cylinder of the vehicle engine, not only can the residual heat and chemical energy in the exhaust gas be utilized to improve the combustion efficiency of the fuel, but also the pollutant emissions caused by incomplete combustion can be reduced.

[0042] Specifically, in the exhaust gas generation circuit (102), when the vehicle engine is working, the fuel is burned in the combustion chamber to generate initial vehicle exhaust gas. The initial vehicle exhaust gas usually contains pollutants such as incompletely burned hydrocarbons, carbon monoxide, carbon dioxide, nitrogen oxides, etc. The first output end of the exhaust gas generation circuit (102) is connected to the input end of the exhaust gas water content reduction circuit (104) to reduce the water content of the initial vehicle exhaust gas through the exhaust gas water content reduction circuit (104) to obtain the target vehicle exhaust gas, thereby reducing the impact on subsequent processing equipment and improving the calorific value of the initial vehicle exhaust gas. The second output end of the exhaust gas generation circuit (102) is connected to the outside world and is used to discharge part of the initial vehicle exhaust gas to the outside world.

[0043] Furthermore, the first output end of the exhaust gas water content reduction circuit (104) is connected to the second output end of the exhaust gas generation circuit (102), and is used to discharge the liquid water precipitated in the exhaust gas water content reduction circuit (104) to the outside. The second output end of the exhaust gas water content reduction circuit (104) is connected to the first input end of the exhaust gas utilization circuit. The second input end of the exhaust gas water content reduction circuit (104) is connected to the outside, and receives the target vehicle exhaust gas on the one hand and the outside air on the other hand. The exhaust gas water content reduction circuit (104) processes the target vehicle exhaust gas and the outside air into gas required by the vehicle engine, and transports the processed gas to each cylinder combustion chamber of the vehicle engine to participate in fuel combustion, improve fuel combustion efficiency, reduce dependence on external fuel, and possibly reduce vehicle exhaust gas emissions.

[0044] Specifically, the output end of the exhaust gas utilization circuit (104) is connected back to the input end of the exhaust gas generation circuit (102), forming a closed loop system, allowing the vehicle exhaust gas to be recycled.

[0045] Based on the above vehicle exhaust gas treatment system, it comprises: an exhaust gas generating circuit (102), an exhaust gas water content reducing circuit (104) and an exhaust gas utilizing circuit (106), and the exhaust gas generating circuit (102) is used to control the vehicle engine to generate initial vehicle exhaust gas; the exhaust gas water content reducing circuit (104) has an input end connected to the first output end of the exhaust gas generating circuit, and a first output end connected to the second output end of the exhaust gas generating circuit, and is used to reduce the water content of the initial vehicle exhaust gas to obtain the target vehicle exhaust gas. The exhaust gas utilization circuit (106) has a first input end connected to the second output end of the exhaust gas water content reduction circuit, and an output end connected to the input end of the exhaust gas generation circuit, and is used to transport the target vehicle exhaust gas to the combustion chambers of each cylinder of the vehicle engine to participate in the fuel combustion, thereby achieving the purpose of reducing the liquid water precipitated in the vehicle exhaust gas by increasing the exhaust gas water content reduction circuit during the control of the exhaust gas recirculation process, so as to avoid the accumulation of emulsions formed by the liquid water precipitated in the vehicle exhaust gas and the engine oil, thereby achieving the technical effect of improving the fuel economy and working stability of the vehicle engine, and further solving the technical problem in the related art that the fuel economy and working stability of the vehicle engine are reduced due to the precipitation of liquid water during the vehicle exhaust gas recirculation process.

[0046] Optionally, the exhaust gas water content reduction circuit (104) comprises:

[0047] A first cooler, whose input end is connected to the first output end of the exhaust gas generation circuit, is used to pre-cool the initial vehicle exhaust gas to obtain cooled vehicle exhaust gas;

[0048] The first cooler is used to characterize a device installed in the vehicle EGR system for cooling vehicle exhaust gas. The input end of the first cooler is connected to the first output end of the exhaust gas generation circuit, that is, connected to the exhaust pipe after the turbocharger in the exhaust gas generation circuit. The first cooler performs pre-cooling treatment on the high-temperature initial vehicle exhaust gas discharged from the vehicle engine, which can preliminarily reduce the water vapor content in the initial vehicle exhaust gas and prepare for subsequent deep cooling. The cooled exhaust gas after the pre-cooling treatment flows out from the output end of the first cooler.

[0049] It should be noted that the connection between the various devices is indirectly connected through the exhaust gas transmission pipeline, or directly connected through the ports between the devices. This application does not limit this and will not be elaborated later.

[0050] A first exhaust control valve and a second exhaust control valve, wherein input ends of the first exhaust control valve and the second exhaust control valve are respectively connected to the output end of the first cooler, and are used to control the flow rate of the cooled vehicle exhaust gas entering the second cooler;

[0051] Specifically, the input ends of the first exhaust control valve and the second exhaust control valve are both connected to the output end of the first cooler, wherein the output end of the second exhaust control valve can be directly connected to the input end of the second cooler, or can be connected to the input end of the second cooler through a pipe or component. By precisely controlling the valve opening of the first exhaust control valve and the second exhaust control valve, the exhaust gas flow entering the second cooler can be adjusted to adapt to different working conditions and exhaust gas treatment requirements. This adjustment can optimize the cooling effect while ensuring the stability and reliability of the EGR system. The first exhaust control valve and the second exhaust control valve are usually precisely controlled by the engine management system (EMS) or the controller of the EGR system to achieve automatic exhaust gas flow regulation.

[0052] A second cooler, whose input end is connected to the output end of the second exhaust gas control valve, is used to cool the cooled exhaust gas again to obtain the target vehicle exhaust gas, and whose second output end is connected to the second output end of the exhaust gas generation circuit, is used to discharge the moisture precipitated during the cooling process;

[0053] Specifically, the input end of the second cooler is connected to the output end of the second exhaust gas control valve, and the output end thereof is divided into two parts: one part is connected to the input end of the third exhaust gas control valve and is used to send the exhaust gas of the target vehicle into the exhaust gas utilization circuit (106), and the other part is connected to the second output end of the exhaust gas generation circuit (102) and is used to discharge liquid water precipitated during the cooling process.

[0054] Specifically, the cooled vehicle exhaust gas after being adjusted by the first cooler, the first exhaust gas control valve and the second exhaust gas control valve is subjected to a further cooling treatment to further reduce the water vapor content in the exhaust gas. In the second cooler, the water vapor in the vehicle exhaust gas condenses into liquid water and is discharged from the system through a specific exhaust pipe. The target vehicle exhaust gas after deep cooling flows out from the output end of the second cooler and enters the exhaust gas utilization line (106) through the third exhaust gas control valve.

[0055] The third exhaust control valve has its input end connected to the output end of the second cooler and the second exhaust controller, and its output end connected to the first input end of the exhaust utilization circuit, and is used to control the flow of the target vehicle's exhaust gas entering the exhaust utilization circuit.

[0056] Specifically, the input end of the third exhaust control valve is connected to the output end of the second cooler, and the output end thereof is connected to the first input end of the exhaust utilization circuit. By adjusting the opening of the valve, the third exhaust control valve can control the flow of the target vehicle exhaust gas entering the exhaust utilization circuit (106). This regulation helps to ensure the stability and efficiency of the EGR system while avoiding adverse effects on the vehicle engine performance. The third exhaust control valve is also usually precisely controlled by the EMS or the controller of the EGR system to achieve automated exhaust flow regulation.

[0057] Specifically, the initial vehicle exhaust gas enters the first cooler from the first output end of the exhaust gas generation circuit (102). In the first cooler, the initial vehicle exhaust gas is preliminarily cooled to obtain cooled vehicle exhaust gas. The pre-cooled vehicle exhaust gas is flow-regulated by the first exhaust gas control valve and the second exhaust gas control valve. The regulated vehicle exhaust gas enters the second cooler for deep cooling treatment. In the second cooler, water vapor in the vehicle exhaust gas condenses into liquid water and is discharged from the system through the second output end of the exhaust gas generation circuit (102). At the same time, the target vehicle exhaust gas with a low water content enters the exhaust gas utilization circuit through the third exhaust gas control valve. Through the use of the first cooler and the second cooler, multi-stage cooling treatment of the vehicle exhaust gas is achieved, effectively reducing the water vapor content in the vehicle exhaust gas. The introduction of the three exhaust gas control valves enables the EGR system to accurately regulate the flow according to the working conditions, ensuring the stability and efficiency of the EGR system.

[0058] Optionally, the waste gas utilization circuit (106) comprises:

[0059] A first humidity sensor is disposed between the first input end of the exhaust gas utilization circuit and the second input end of the exhaust gas utilization circuit, and is used to measure the humidity value of the external intake air;

[0060] The first humidity sensor is arranged between the first input end of the exhaust gas utilization circuit (106) and the second input end of the exhaust gas utilization circuit (106) and is used to measure the humidity value of the external intake air. By measuring the humidity of the external intake air, important reference data can be provided for the operation of the EGR system.

[0061] A supercharger compressor, whose input end is connected to the first output end of the exhaust gas water content reduction circuit and the first input end of the exhaust gas utilization circuit, and is used to pressurize the mixed gas to obtain a compressed mixed gas, wherein the mixed gas includes external intake air and target vehicle exhaust gas;

[0062] The supercharger compressor has an input end connected to the first output end of the exhaust gas water content reduction circuit (104) and the first input end of the exhaust gas utilization circuit (106). The mixed gas is pressurized to obtain a compressed mixed gas. The mixed gas contains external intake air and target vehicle exhaust gas. The supercharger compressor is used to increase the density of air entering the engine, thereby increasing the combustion efficiency and the output power of the engine.

[0063] An intercooler, whose input end is connected to the output end of the supercharger compressor and whose output end is connected to the vehicle engine, is used to cool the supercharged mixed gas to obtain a cooled mixed gas;

[0064] The intercooler has an input end connected to the output end of the supercharger compressor and an output end connected to the vehicle engine. The supercharged mixed gas is cooled to obtain a cooled mixed gas. The intercooler is used to reduce the intake temperature of the engine, thereby improving the engine's ventilation efficiency, increasing the engine's power, and reducing fuel consumption.

[0065] The second humidity sensor is arranged between the intercooler and the vehicle engine, and is used to obtain the humidity value of the cooled mixed gas.

[0066] The second humidity sensor is arranged between the intercooler and the vehicle engine. It is used to obtain the humidity value of the cooled mixed gas. By measuring the humidity of the cooled mixed gas, the effect of the vehicle exhaust gas treatment can be further understood, and important reference data can be provided for the subsequent engine combustion process.

[0067] Specifically, in the exhaust gas utilization circuit (106), the external intake air is measured by a first humidity sensor to obtain its humidity value. After the initial vehicle exhaust gas is treated to reduce the water content, it is mixed with the external intake air. The mixed gas enters the supercharger compressor for supercharging to obtain a compressed mixed gas. The supercharged mixed gas enters the intercooler for cooling to obtain a cooled mixed gas. The cooled mixed gas is measured by a second humidity sensor to obtain its humidity value. Finally, the treated mixed gas is sent to the vehicle engine for combustion.

[0068] Furthermore, the exhaust gas utilization circuit (106) effectively utilizes the exhaust gas of the target vehicle and the external intake air to mix by accurately measuring and controlling the mixing ratio, humidity, temperature and other parameters of the exhaust gas and the external intake air, and finally sends the processed mixed gas to the vehicle engine for combustion through a series of treatments. The circuit includes key components such as a first humidity sensor, a supercharger compressor, an intercooler and a second humidity sensor, and can achieve precise control of the engine combustion process, thereby improving the performance and efficiency of the engine.

[0069] Specifically, Figure 2A schematic diagram of another vehicle exhaust gas treatment system according to one embodiment of the present invention is shown in FIG. Figure 2 As shown, Figure 2 The invention comprises a controller (1), a second humidity sensor (2), an intake manifold (3), combustion chambers of each cylinder of the engine (4), an exhaust manifold (5), a supercharger turbine (6), a post-processor (7), a first cooler (8), a second exhaust control valve (9), a first exhaust control valve (10), a second cooler (11), a third exhaust control valve (12), a first humidity sensor (13), a supercharger compressor (14) and an intercooler (15).

[0070] Specifically, the exhaust gas generation circuit includes but is not limited to: the combustion chamber of each cylinder of the engine (4), the exhaust manifold (5), the supercharger turbine (6), and the after-processor (7); the exhaust gas water content reduction circuit (104) includes but is not limited to: the after-processor (7), the first cooler (8), the second exhaust gas control valve (9), the first exhaust gas control valve (10), the second cooler (11), and the third exhaust gas control valve (12); the exhaust gas utilization circuit (106) includes but is not limited to: the second humidity sensor (2), the combustion chamber of each cylinder of the engine (4), the first humidity sensor (13), the supercharger compressor (14), and the intercooler (15).

[0071] Specifically, in the combustion chamber (4) of each cylinder of the engine, fuel is burned to generate initial vehicle exhaust gas. The initial vehicle exhaust gas is discharged by using an exhaust manifold (5). When the initial vehicle exhaust gas flows through the supercharger turbine (6), the turbine is driven to rotate. On the one hand, the rotation of the turbine drives the supercharger compressor (14) to compress more gas to be transported to the combustion chamber (5) of each cylinder of the vehicle engine; on the other hand, a part of the initial vehicle exhaust gas is processed by the post-processor (7) and then discharged to the outside, and the remaining initial vehicle exhaust gas is pushed to the exhaust gas water content reduction circuit (104).

[0072] Specifically, in the exhaust gas water content reduction circuit, first, the high-temperature initial vehicle exhaust gas discharged from the vehicle engine is pre-cooled by using the first cooler (8), which can preliminarily reduce the water vapor content in the initial vehicle exhaust gas and prepare for subsequent deep cooling. The cooled exhaust gas after the pre-cooling treatment flows out from the output end of the first cooler (8). The input ends of the first exhaust gas control valve (10) and the second exhaust gas control valve (9) are both connected to the output end of the first cooler (8). In the vehicle exhaust gas treatment system, the first exhaust gas control valve (10), the second exhaust gas control valve (9) and the third exhaust gas control valve (12) maintain the initial opening and closing degrees, and the vehicle exhaust gas flow entering the second cooler (11) is controlled by maintaining the initial opening and closing degrees of the first exhaust gas control valve (10) and the second exhaust gas control valve (9). A portion of the initial vehicle exhaust gas flows into the second cooler (11) for re-cooling to precipitate liquid water in the vehicle exhaust gas, and the cooled vehicle exhaust gas flows to the third exhaust gas control valve (12). The liquid water precipitated after cooling flows to the post-processor (7), and is discharged to the outside after being processed by the post-processor (7). The remaining vehicle exhaust gas that is not re-cooled by the second cooler (11) directly flows to the third exhaust gas control valve (12) through the first exhaust gas control valve (10). The vehicle exhaust gas flowing to the exhaust gas utilization line is controlled by the third exhaust gas control valve (12).

[0073] Furthermore, in the exhaust gas utilization circuit, the external intake air is measured by the first humidity sensor (13) to obtain its humidity value. After the initial vehicle exhaust gas is processed to reduce the water content by the device in the exhaust gas water content reduction circuit, the target vehicle exhaust gas is obtained, and the target vehicle exhaust gas is mixed with the external intake air, wherein the flow rate of the target vehicle exhaust gas is controlled by the third exhaust gas control valve (12). The mixed gas enters the supercharger compressor (14) for supercharging to obtain a compressed mixed gas. The supercharged mixed gas enters the intercooler (15) for cooling to obtain a cooled mixed gas. The cooled mixed gas is sent to the vehicle engine to participate in fuel combustion.

[0074] Furthermore, the controller (1) monitors the humidity of the external intake air through the first humidity sensor (13), monitors the humidity of the mixed gas sent to the vehicle engine to participate in the fuel combustion through the second humidity sensor (2), and monitors the EGR rate in the exhaust gas utilization line. The opening and closing degrees of the first exhaust gas control valve (10) and the second exhaust gas control valve (9) are controlled by the humidity of the external intake air and the humidity of the mixed gas sent to the vehicle engine to participate in the fuel combustion, thereby controlling the exhaust gas flow of the vehicle exhaust gas flowing through the second cooler (11) to precipitate part of the liquid water in advance, thereby ensuring that the mixed gas sent to the vehicle engine to participate in the fuel combustion will not precipitate liquid water again, so as to avoid the accumulation of emulsions formed by the precipitated liquid water in the vehicle exhaust gas and the engine oil; the opening and closing degree of the third exhaust gas control valve (12) is controlled by the EGR rate and combined with the current vehicle engine operating conditions, thereby controlling the flow of the target vehicle exhaust gas entering the exhaust gas utilization line, so that the EGR rate is kept within a preset range, thereby improving the fuel economy and working stability of the vehicle engine.

[0075] Figure 3 is a flow chart of a vehicle exhaust gas treatment method according to one embodiment of the present invention, which is applied to the above-mentioned vehicle exhaust gas treatment system, such as Figure 3 As shown, the process includes the following steps:

[0076] Step S30, obtaining initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio of a first air intake volume to a second air intake volume in an exhaust utilization circuit, wherein the initial control parameters are used to indicate the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to indicate the humidity value of the external air intake, the second humidity value is used to indicate the humidity value of the gas entering the vehicle engine, the first air intake volume is used to indicate the air intake volume of the exhaust gas of the target vehicle in the exhaust utilization circuit, and the second air intake volume is used to indicate the total air intake volume in the exhaust utilization circuit, and the exhaust gas of the target vehicle is obtained after being processed by the exhaust gas water content reduction circuit;

[0077] In step S30, the initial control parameters of the above-mentioned multiple exhaust control valves are used to characterize the initial opening and closing degrees of the first exhaust control valve, the second exhaust control valve, and the third exhaust control valve. For example, among the initial control parameters of the multiple exhaust control valves: the valve of the first exhaust control valve is set to open 50%, the valve of the second exhaust control valve is set to close, and the valve of the third exhaust control valve is set to 80%. At this time, in the exhaust gas water content reduction circuit, the initial vehicle exhaust gas cooled by the first cooler is directly transported to the third exhaust valve through the first exhaust valve, and is controlled by the third exhaust valve to enter the exhaust gas utilization circuit without entering the second cooler for secondary cooling.

[0078] The first humidity value is used to represent the humidity value measured by the first humidity sensor in the exhaust gas utilization circuit, which is the humidity value of the external intake air.

[0079] The second humidity value is used to represent the humidity value measured by the second humidity sensor in the exhaust gas utilization line, which is the humidity value of the gas entering the vehicle engine.

[0080] The ratio of the first intake amount to the second intake amount in the above-mentioned exhaust gas utilization circuit is used to represent the EGR rate in the exhaust gas utilization circuit, that is, the ratio of the vehicle exhaust gas amount entering the exhaust gas utilization circuit through the third exhaust control valve to the total intake amount in the exhaust gas utilization circuit.

[0081] Step S32, feedback-adjusting the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and,

[0082] In step S32, the first exhaust gas control valve and the second exhaust gas control valve are respectively Figure 2 A first exhaust gas control valve (10) and a second exhaust gas control valve (9) in the embodiment of the present invention.

[0083] Specifically, first, the first exhaust control valve and the second exhaust control valve maintain an initial opening and closing degree to control the flow rate of vehicle exhaust gas entering the second cooler. Then, during the vehicle exhaust treatment process, the controller monitors the humidity of the external intake air through the first humidity sensor to obtain a first humidity value, and monitors the humidity of the gas entering the vehicle engine through the second humidity sensor to obtain a second humidity value. Finally, the opening and closing degrees of the first exhaust control valve and the second exhaust control valve are adjusted in real time through the first humidity value and the second humidity value, thereby controlling the exhaust gas flow rate of the vehicle exhaust gas flowing through the second cooler to precipitate part of the liquid water in advance, thereby ensuring that the mixed gas sent to the vehicle engine to participate in the fuel combustion will not precipitate liquid water again, so as to avoid the accumulation of emulsions formed by the liquid water precipitated in the vehicle exhaust gas and the engine oil.

[0084] Step S34: feedback-adjusting the initial opening degree of the third exhaust control valve in the initial control parameters based on the proportional value.

[0085] In step S34, the third exhaust gas control valve is Figure 2 The third exhaust gas control valve (12) in the embodiment of the present invention.

[0086] Specifically, first, the third exhaust control valve maintains the set initial opening and closing degree to control the vehicle exhaust gas flowing to the exhaust gas utilization line. Then, the controller monitors the EGR rate in the exhaust gas utilization line in real time. Finally, through the EGR rate, combined with the current vehicle engine operating conditions, the opening and closing degree of the third exhaust control valve is controlled to control the flow of the target vehicle exhaust gas entering the exhaust gas utilization line, and then the EGR rate in the exhaust gas utilization line is controlled to keep the EGR rate within a preset range, thereby improving the fuel economy and working stability of the vehicle engine.

[0087] Specifically, obtaining a vehicle exhaust gas treatment system may include an exhaust gas generation circuit, an exhaust gas water content reduction circuit, an exhaust gas utilization circuit and a controller, etc. The vehicle exhaust gas treatment system may provide a basis for subsequent vehicle exhaust gas treatment.

[0088] Specifically, in the vehicle exhaust treatment system, the first exhaust control valve, the second exhaust control valve and the third exhaust control valve maintain the set initial opening and closing degrees, and the vehicle exhaust flow entering the second cooler is controlled by maintaining the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve, and the vehicle exhaust flowing to the exhaust utilization line is controlled by the third exhaust control valve. A portion of the vehicle exhaust cooled by the first cooler flows into the second cooler for re-cooling to precipitate liquid water in the vehicle exhaust gas, and the vehicle exhaust after secondary cooling flows to the third exhaust control valve, and the liquid water precipitated after cooling flows to the post-processor, and is discharged to the outside after being processed by the post-processor. The remaining vehicle exhaust that is not re-cooled by the second cooler directly flows to the third exhaust control valve through the first exhaust control valve.

[0089] Furthermore, the controller monitors the humidity of the external intake air through the first humidity sensor to obtain a first humidity value, monitors the humidity of the mixed gas sent to the vehicle engine to participate in the fuel combustion through the second humidity sensor to obtain a second humidity value, and monitors the EGR rate in the exhaust gas utilization circuit in real time. Through the first humidity value and the second humidity value, the opening and closing degree of the first exhaust gas control valve and the second exhaust gas control valve are controlled, thereby controlling the exhaust gas flow of the vehicle exhaust gas flowing through the second cooler, so as to precipitate part of the liquid water in advance, so as to avoid the accumulation of emulsions formed by the liquid water precipitated in the vehicle exhaust gas and the engine oil, thereby ensuring that the mixed gas sent to the vehicle engine to participate in the fuel combustion will not precipitate liquid water again; through the EGR rate, combined with the current vehicle engine operating conditions, the opening and closing degree of the third exhaust gas control valve is controlled, thereby controlling the flow of the target vehicle exhaust gas entering the exhaust gas utilization circuit, and then controlling the EGR rate in the exhaust gas utilization circuit, so that the EGR rate is maintained within a preset range, thereby improving the fuel economy and working stability of the vehicle engine.

[0090] Based on the above steps S30 to S34, the initial control parameters of multiple exhaust control valves, the first humidity value, the second humidity value, and the ratio of the first air intake volume to the second air intake volume in the exhaust gas utilization circuit are obtained. The initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters are feedback-adjusted based on the first humidity value and the second humidity value, and the initial opening and closing degree of the third exhaust control valve in the initial control parameters is feedback-adjusted based on the ratio value. The purpose of reducing the liquid water precipitated in the vehicle exhaust gas by increasing the exhaust gas water content reduction circuit during the control of the exhaust gas recirculation process is achieved to avoid the accumulation of emulsions formed by the liquid water precipitated in the vehicle exhaust gas and the engine oil, thereby achieving the technical effect of improving the fuel economy and working stability of the vehicle engine, and further solving the technical problem in the related art that the fuel economy and working stability of the vehicle engine are reduced due to the precipitation of liquid water in the vehicle exhaust gas recirculation process.

[0091] Optionally, in step S32, feedback-adjusting the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value includes:

[0092] Step S321, in response to the first humidity value or the second humidity value being greater than the preset humidity threshold, adjusting the opening degree of the first exhaust control valve to be less than or equal to the first preset valve threshold, and adjusting the opening degree of the second exhaust control valve to be greater than the first preset valve threshold.

[0093] Specifically, when the first humidity value or the second humidity value is greater than the preset humidity threshold, the opening degree of the first exhaust control valve is adjusted to be less than or equal to the first preset valve threshold, and the opening degree of the second exhaust control valve is adjusted to be greater than the first preset valve threshold.

[0094] Specifically, if the monitored first humidity value or the second humidity value is greater than the first preset humidity threshold, the vehicle exhaust system will enter the adjustment mode. The opening and closing degree of the first exhaust control valve is adjusted to be less than or equal to the first preset valve threshold. This means that the valve of the first exhaust control valve will be closed or the opening degree will be reduced to reduce the vehicle exhaust gas that has not been cooled by the second cooler from entering the exhaust utilization line. At the same time, the opening and closing degree of the second exhaust control valve is adjusted to be greater than the first preset valve threshold. This means that the valve of the second exhaust control valve will be opened or the opening degree will be increased to increase the vehicle exhaust gas entering the second cooler. The opening and closing degree of the first exhaust control valve is adjusted to be less than or equal to the first preset valve threshold, and the opening and closing degree of the second exhaust control valve is adjusted to be greater than the first preset valve threshold, so as to precipitate part of the liquid water in advance, so as to avoid the accumulation of emulsions formed by the liquid water precipitated in the vehicle exhaust gas and the engine oil, thereby ensuring that the mixed gas sent to the vehicle engine to participate in the fuel combustion will not precipitate liquid water again. For example, the preset humidity threshold is set to 60%, and the first preset valve threshold is set to 50%. If the first humidity value or the second humidity value reaches 65%, the valve opening degree of the first exhaust control valve is adjusted to 50% or less, and the valve opening degree of the second exhaust control valve is adjusted to more than 50%.

[0095] Based on the above step S321, in response to the first humidity value or the second humidity value being greater than the preset humidity threshold, the opening and closing degree of the first exhaust control valve is adjusted to be less than or equal to the first preset valve threshold, and the opening and closing degree of the second exhaust control valve is adjusted to be greater than the first preset valve threshold, so as to precipitate some liquid water in advance to avoid the accumulation of emulsions formed by liquid water precipitated in the vehicle exhaust gas and engine oil, thereby ensuring that the mixed gas sent into the vehicle engine to participate in fuel combustion will not precipitate liquid water again.

[0096] Optionally, in step S32, feedback-adjusting the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value includes:

[0097] Step S322, in response to the first humidity value being less than or equal to the preset humidity threshold, and the second humidity value being less than or equal to the preset humidity threshold, adjusting the opening degree of the first exhaust control valve to be greater than the first preset valve threshold, and adjusting the opening degree of the second exhaust control valve to be less than or equal to the first preset valve threshold.

[0098] Specifically, when the first humidity value is less than or equal to the first preset humidity threshold, and the second humidity value is less than or equal to the preset humidity threshold, the opening degree of the first exhaust control valve is adjusted to be greater than the first preset valve threshold, and the opening degree of the second exhaust control valve is adjusted to be less than or equal to the first preset valve threshold.

[0099] Specifically, the controller monitors the first humidity value and the second humidity value in real time. If the first humidity value is less than or equal to the first preset humidity threshold, and the second humidity value is less than or equal to the preset humidity threshold, this means that the humidity of the external intake air and the humidity of the gas entering the vehicle engine are less than or equal to the preset humidity threshold, and the humidity limit on the exhaust gas of the target vehicle can be appropriately relaxed. At this time, the opening and closing degree of the first exhaust control valve is adjusted to be greater than the first preset valve threshold, and the opening and closing degree of the second exhaust control valve will be adjusted to be less than or equal to the first preset valve threshold. This means that the humidity limit on the exhaust gas of the target vehicle is appropriately relaxed, and more vehicle exhaust gas does not need to pass through the second cooler and can directly reach the third exhaust control valve to enter the exhaust gas utilization line. For example, the preset humidity threshold is 60%, and the first preset valve threshold is 30%. If at a certain moment, the monitored first humidity value is 55% and the second humidity value is 40%, the controller will determine that the humidity limit on the exhaust gas of the target vehicle can be appropriately relaxed. At this time, the opening degree of the first exhaust control valve is adjusted to be greater than its preset threshold, increasing from 30% to 40%, and the opening degree of the second exhaust control valve is adjusted to not exceed its preset threshold, maintaining at 30% or reducing to 15%.

[0100] Based on the above step S322, in response to the first humidity value being less than or equal to the first preset humidity threshold, and the second humidity value being less than or equal to the preset humidity threshold, the opening degree of the first exhaust control valve is adjusted to be greater than the first preset valve threshold, and the opening degree of the second exhaust control valve is adjusted to be less than or equal to the first preset valve threshold. The humidity limit on the exhaust gas of the target vehicle can be appropriately relaxed so that more exhaust gas can directly reach the third exhaust control valve without passing through the second cooler to enter the exhaust gas utilization circuit, thereby improving the efficiency of fuel combustion in the vehicle engine and the utilization rate of the vehicle exhaust gas.

[0101] Optionally, in step S34, feedback-adjusting the initial opening degree of the third exhaust control valve in the initial control parameter based on the proportional value includes:

[0102] Step S341 , in response to the ratio value being greater than or equal to a preset ratio threshold, adjusting the opening degree of the third exhaust control valve to be less than a second preset valve threshold.

[0103] Specifically, when the ratio value is greater than or equal to the preset ratio threshold, the opening and closing degree of the third exhaust control valve is adjusted to be less than the second preset valve threshold, which means that the current EGR rate is greater than or equal to the set target, and the target vehicle exhaust gas entering the exhaust gas utilization line can be reduced by controlling the opening and closing degree of the third exhaust control valve to reduce the EGR rate. When the ratio value is less than the preset ratio threshold, the opening and closing degree of the third exhaust control valve is adjusted to be greater than the second preset valve threshold, which means that the current EGR rate is less than the set target, and the target vehicle exhaust gas entering the exhaust gas utilization line can be increased by controlling the opening and closing degree of the third exhaust control valve to increase the EGR rate, thereby improving the fuel economy of the vehicle engine. For example, the preset ratio threshold is 0.2, and the second preset valve threshold is set to 60%. If the ratio value reaches 0.24, the valve opening and closing degree of the third exhaust control valve will be adjusted to 50% or less. If the ratio value reaches 0.19, the valve opening and closing degree of the third exhaust control valve will be adjusted to 60% or more.

[0104] Based on the above step S341, in response to the ratio value being greater than or equal to the preset ratio threshold, the opening and closing degree of the third exhaust control valve is adjusted to be less than the second preset valve threshold, and the target vehicle exhaust gas entering the exhaust gas utilization circuit is increased to increase the EGR rate and improve the fuel economy of the vehicle engine.

[0105] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0106] In an embodiment of the present invention, an input signal adapter device for a vehicle chip is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and will not be repeated hereafter. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0107] Figure 4 FIG. 1 is a structural block diagram of a vehicle exhaust gas treatment device according to one embodiment of the present invention. Figure 4 As shown, the device comprises:

[0108] The acquisition module 401 is used to acquire the initial control parameters of multiple exhaust control valves, the first humidity value, the second humidity value, and the ratio of the first intake volume and the second intake volume of the target vehicle exhaust gas to the mixed gas in the exhaust gas utilization circuit, wherein the initial control parameters are used to represent the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to represent the humidity value of the external intake air, the second humidity value is used to represent the humidity value of the gas entering the vehicle engine, the first intake volume is used to represent the intake volume of the target vehicle exhaust gas in the exhaust gas utilization circuit, and the second intake volume is used to represent the total intake volume in the exhaust gas utilization circuit, and the target vehicle exhaust gas is obtained after being processed by the exhaust gas water content reduction circuit;

[0109] The first adjustment module 402 is used to perform feedback adjustment on the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and

[0110] The second regulating module 403 is used to perform feedback regulation on the initial opening degree of the third exhaust gas control valve in the initial control parameters based on the proportional value.

[0111] Optionally, the first adjustment module 402 is also used to: in response to the first humidity value or the second humidity value being greater than a preset humidity threshold, adjust the opening degree of the first exhaust control valve to be less than or equal to a first preset valve threshold, and the opening degree of the second exhaust control valve to be greater than the first preset valve threshold.

[0112] Optionally, the first adjustment module 402 is also used to: in response to the first humidity value being less than or equal to a first preset humidity threshold, and the second humidity value being less than or equal to the preset humidity threshold, adjust the opening degree of the first exhaust control valve to be greater than the first preset valve threshold, and the opening degree of the second exhaust control valve to be less than or equal to the first preset valve threshold.

[0113] Optionally, the second regulating module 403 is further configured to: in response to the ratio value being greater than or equal to a preset ratio threshold, adjust the opening degree of the third exhaust control valve to be less than a second preset valve threshold.

[0114] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0115] According to one embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the above-mentioned vehicle exhaust treatment method is executed when the program is running.

[0116] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0117] Step S1, obtaining initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio of a first air intake volume to a second air intake volume in an exhaust utilization circuit, wherein the initial control parameters are used to indicate the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to indicate the humidity value of the external air intake, the second humidity value is used to indicate the humidity value of the gas entering the vehicle engine, the first air intake volume is used to indicate the air intake volume of the exhaust gas of the target vehicle in the exhaust utilization circuit, and the second air intake volume is used to indicate the total air intake volume in the exhaust utilization circuit, and the exhaust gas of the target vehicle is obtained after being processed by the exhaust gas water content reduction circuit;

[0118] Step S2, feedback-adjusting the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and,

[0119] Step S3: feedback-adjusting the initial opening degree of the third exhaust gas control valve in the initial control parameters based on the proportional value.

[0120] According to one embodiment of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein when the executable program runs, the device where the storage medium is located is controlled to execute the above-mentioned vehicle exhaust treatment method.

[0121] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0122] Step S1, obtaining initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio of a first air intake volume to a second air intake volume in an exhaust utilization circuit, wherein the initial control parameters are used to indicate the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to indicate the humidity value of the external air intake, the second humidity value is used to indicate the humidity value of the gas entering the vehicle engine, the first air intake volume is used to indicate the air intake volume of the exhaust gas of the target vehicle in the exhaust utilization circuit, and the second air intake volume is used to indicate the total air intake volume in the exhaust utilization circuit, and the exhaust gas of the target vehicle is obtained after being processed by the exhaust gas water content reduction circuit;

[0123] Step S2, feedback-adjusting the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and,

[0124] Step S3: feedback-adjusting the initial opening degree of the third exhaust gas control valve in the initial control parameters based on the proportional value.

[0125] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0126] According to one embodiment of the present invention, a computer program product is also provided, including a computer program, and the computer program implements the above-mentioned vehicle exhaust gas treatment method when executed by a processor.

[0127] Optionally, in this embodiment, the computer program product may be configured as a computer program for executing the following steps:

[0128] Step S1, obtaining initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio of a first air intake volume to a second air intake volume in an exhaust utilization circuit, wherein the initial control parameters are used to indicate the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to indicate the humidity value of the external air intake, the second humidity value is used to indicate the humidity value of the gas entering the vehicle engine, the first air intake volume is used to indicate the air intake volume of the exhaust gas of the target vehicle in the exhaust utilization circuit, and the second air intake volume is used to indicate the total air intake volume in the exhaust utilization circuit, and the exhaust gas of the target vehicle is obtained after being processed by the exhaust gas water content reduction circuit;

[0129] Step S2, feedback-adjusting the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and,

[0130] Step S3: feedback-adjusting the initial opening degree of the third exhaust gas control valve in the initial control parameters based on the proportional value.

[0131] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0132] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0133] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0134] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0135] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0136] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0137] If the integrated unit is implemented in the form of 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. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc. Various media that can store program codes.

[0138] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vehicle exhaust treatment system, characterized in that: include: An exhaust gas generating circuit for controlling a vehicle engine to generate initial vehicle exhaust gas; an exhaust gas water content reducing circuit, whose input end is connected to the first output end of the exhaust gas generating circuit, and whose first output end is connected to the second output end of the exhaust gas generating circuit, for reducing the water content of the initial vehicle exhaust gas to obtain the target vehicle exhaust gas; The exhaust gas utilization circuit has a first input end connected to the second output end of the exhaust gas water content reduction circuit, and an output end connected to the input end of the exhaust gas generation circuit, and is used to transport the target vehicle exhaust gas to the combustion chamber of each cylinder of the vehicle engine to participate in fuel combustion.

2. The vehicle exhaust treatment system according to claim 1, characterized in that: The exhaust gas water content reduction circuit comprises: A first cooler, whose input end is connected to the first output end of the exhaust gas generation circuit, is used to pre-cool the initial vehicle exhaust gas to obtain cooled vehicle exhaust gas; a first exhaust control valve and a second exhaust control valve, wherein input ends of the first exhaust control valve and the second exhaust control valve are respectively connected to the output end of the first cooler, and are used to control the flow rate of the cooled vehicle exhaust gas entering the second cooler; A second cooler, whose input end is connected to the output end of the second exhaust gas control valve, and is used to cool the cooled exhaust gas again to obtain the target vehicle exhaust gas, and whose second output end is connected to the second output end of the exhaust gas generation circuit, and is used to discharge the moisture precipitated during the cooling process; The third exhaust control valve has its input end connected to the output ends of the second cooler and the second exhaust controller, and its output end connected to the first input end of the exhaust utilization circuit, and is used to control the flow of the target vehicle's exhaust gas entering the exhaust utilization circuit.

3. The vehicle exhaust treatment system according to claim 1, characterized in that: The waste gas utilization circuit comprises: A first humidity sensor is disposed between the first input end of the exhaust gas utilization circuit and the second input end of the exhaust gas utilization circuit, and is used to measure the humidity value of the external intake air; A supercharger compressor, whose input end is connected to the first output end of the exhaust gas water content reduction circuit and the first input end of the exhaust gas utilization circuit, and is used to pressurize the mixed gas to obtain a compressed mixed gas, wherein the mixed gas contains the external intake air and the target vehicle exhaust gas; an intercooler, whose input end is connected to the output end of the supercharger compressor and whose output end is connected to the vehicle engine, for cooling the supercharged mixed gas to obtain a cooled mixed gas; The second humidity sensor is disposed between the intercooler and the vehicle engine and is used to obtain the humidity value of the cooled mixed gas.

4. A vehicle exhaust treatment method, characterized in that: Applicable to the vehicle exhaust treatment system according to any one of claims 1 to 3, the method comprising: Obtaining initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio of a first air intake amount to a second air intake amount in an exhaust utilization circuit, wherein the initial control parameters are used to indicate the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to indicate the humidity value of external intake air, the second humidity value is used to indicate the humidity value of gas entering a vehicle engine, the first air intake amount is used to indicate the air intake amount of exhaust gas of a target vehicle in the exhaust utilization circuit, the second air intake amount is used to indicate the total air intake amount in the exhaust utilization circuit, and the exhaust gas of the target vehicle is obtained after being processed by the exhaust gas water content reduction circuit; Feedback adjustment is performed on the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and, The initial opening / closing degree of the third exhaust control valve in the initial control parameter is feedback-adjusted based on the proportional value.

5. The vehicle exhaust gas treatment method according to claim 4, characterized in that: Feedback-adjusting the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value includes: In response to the first humidity value or the second humidity value being greater than a preset humidity threshold, the opening degree of the first exhaust control valve is adjusted to be less than or equal to a first preset valve threshold, and the opening degree of the second exhaust control valve is adjusted to be greater than the first preset valve threshold.

6. The vehicle exhaust gas treatment method according to claim 5, characterized in that: Feedback-adjusting the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value includes: In response to the first humidity value being less than or equal to the preset humidity threshold, and the second humidity value being less than or equal to the preset humidity threshold, the opening degree of the first exhaust control valve is adjusted to be greater than the first preset valve threshold, and the opening degree of the second exhaust control valve is adjusted to be less than or equal to the first preset valve threshold.

7. The vehicle exhaust gas treatment method according to claim 4, characterized in that: Feedback-regulating the initial opening and closing degree of the third exhaust gas control valve in the initial control parameter based on the proportional value includes: In response to the ratio value being greater than or equal to a preset ratio threshold, the opening degree of the third exhaust control valve is adjusted to be smaller than a second preset valve threshold.

8. A vehicle exhaust gas treatment device, characterized in that: include: an acquisition module, used to acquire initial control parameters of multiple exhaust control valves, a first humidity value, a second humidity value, and a ratio of a target vehicle exhaust gas to a mixed gas of a first intake volume and a second intake volume in an exhaust utilization circuit, wherein the initial control parameters are used to represent the initial opening and closing degrees of the multiple exhaust control valves, the first humidity value is used to represent the humidity value of the external intake air, the second humidity value is used to represent the humidity value of the gas entering the vehicle engine, the first intake volume is used to represent the intake volume of the target vehicle exhaust gas in the exhaust utilization circuit, the second intake volume is used to represent the total intake volume in the exhaust utilization circuit, and the target vehicle exhaust gas is obtained after being processed by the exhaust gas water content reduction circuit; a first regulating module, configured to perform feedback regulation on the initial opening and closing degrees of the first exhaust control valve and the second exhaust control valve in the initial control parameters based on the first humidity value and the second humidity value, and The second regulating module is used to perform feedback regulation on the initial opening degree of the third exhaust gas control valve in the initial control parameters based on the proportional value.

9. An electronic device, characterized in that: include: A memory storing an executable program; A processor is used to run the program, wherein the vehicle exhaust treatment method according to any one of claims 4 to 7 is executed when the program is run.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored executable program, wherein when the executable program is executed, the device where the storage medium is located is controlled to execute the vehicle exhaust treatment method according to any one of claims 4 to 7.

11. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the vehicle exhaust gas treatment method according to any one of claims 4 to 7.

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