CN116066217A - Particle control method and related device for vehicle tail gas - Google Patents

Abstract

The embodiment of the application provides a particle control method and a related device for vehicle tail gas, wherein the method comprises the following steps: acquiring current operation condition data of a target vehicle; determining a corresponding particulate matter control strategy according to the current operation condition data; and controlling the opening and closing degrees of a first control valve and a second control valve according to a particulate matter control strategy, wherein the first control valve is used for controlling the opening and closing of a first exhaust pipeline after the TWC of the target vehicle, the second control valve is used for controlling the opening and closing of a second exhaust pipeline after the TWC, and a GPF (general purpose surface) is arranged in the second exhaust pipeline and used for capturing particulates. Through the scheme, the effective control of the particulate matter quantity of the vehicle tail gas can be realized under various working conditions.

Description

A particle control method and related device for vehicle exhaust

technical field

The present application relates to the field of vehicles, in particular to a particle control method and related devices for vehicle exhaust.

Background technique

In order to protect the environment, a three-way catalytic converter (Three Way Catalyst, TWC) is usually arranged behind the engine of the vehicle in the related art, and the TWC can convert the tail gas (carbon monoxide CO , nitrogen oxides NO x, hydrocarbons H C, etc.) into harmless gases.

Although TWC can oxidize some particles while converting the harmful gas in the vehicle exhaust into harmless gas, the operating conditions of the engine during the actual driving of the vehicle are complex and changeable. More, TWC cannot effectively capture more particulate matter, so only installing TWC behind the vehicle's engine will cause the vehicle exhaust to still have a large risk of excessive particulate matter emissions.

Contents of the invention

Embodiments of the present application provide a particle control method and related device for vehicle exhaust, which can effectively control the amount of particulate matter in vehicle exhaust under various working conditions.

In view of this, the first aspect of the embodiment of the present application provides a particle control method for vehicle exhaust, including:

Obtain the current operating condition data of the target vehicle;

Determine a corresponding particulate matter control strategy according to the current operating condition data;

According to the particulate matter control strategy, the opening and closing degrees of the first control valve and the second control valve are controlled, and the first control valve is used to control the first exhaust pipeline after the three-way catalytic converter TWC of the target vehicle The opening and closing of the second control valve is used to control the opening and closing of the second exhaust pipeline after the TWC, the second exhaust pipeline is installed with a particle filter GPF, and the GPF is used for Particle trapping.

The second aspect of the embodiment of the present application provides a particle control device for vehicle exhaust, including:

an acquisition unit, configured to acquire current operating condition data of the target vehicle;

A determining unit, configured to determine a corresponding particulate matter control strategy according to the current operating condition data;

A control unit, configured to control the opening and closing degrees of the first control valve and the second control valve according to the particulate matter control strategy, the first control valve is used to control the first control valve after the three-way catalytic converter TWC of the target vehicle The opening and closing of an exhaust pipeline, the second control valve is used to control the opening and closing of a second exhaust pipeline after the TWC, and a particle filter GPF is installed in the second exhaust pipeline, The GPF is used for particle trapping.

The third aspect of the embodiment of the present application provides an electronic device, including:

memory for storing executable instructions;

The processor is configured to implement the particle control method for vehicle exhaust provided by the embodiment of the present application when executing the executable instructions stored in the memory.

The fourth aspect of the embodiment of the present application provides a computer-readable medium, storing executable instructions for implementing the particle control method for vehicle exhaust provided by the embodiment of the present application when executed by a processor.

An embodiment of the present application provides a particle control method for vehicle exhaust. The method includes: acquiring the current operating condition data of the target vehicle; determining the corresponding particulate matter control strategy according to the current operating condition data; The degree of opening and closing of a control valve and a second control valve, the first control valve is used to control the opening and closing of the first exhaust pipe after the TWC of the target vehicle, and the second control valve is used to control the second exhaust after the TWC For the opening and closing of the pipeline, a GPF is installed in the second exhaust pipeline, and the GPF is used for particle trapping. Through the above solution, it is possible to effectively control the amount of particulate matter in vehicle exhaust under various working conditions.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a flow chart of a particle control method for vehicle exhaust provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a TWC provided with a GPF provided in an embodiment of the present application;

FIG. 3 is a corresponding relationship diagram of valve opening factors based on engine water temperature provided by the embodiment of the present application;

FIG. 4 is a corresponding relationship diagram of valve opening factors based on the rate of change of the accelerator pedal provided by the embodiment of the present application;

FIG. 5 is a diagram showing the relationship between valve opening factors based on the rate of change of the accelerator pedal and the engine water temperature provided by the embodiment of the present application;

Fig. 6 is a schematic diagram of a particle control device for vehicle exhaust provided by an embodiment of the present application.

Detailed ways

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

In the related art, there is usually only one TWC behind the engine of the vehicle. Although the TWC can convert the exhaust gas that causes air pollution caused by fuel combustion when the engine of the vehicle is running into a harmless gas, the operating conditions of the engine during the actual driving of the vehicle are much more complicated. Especially under the conditions of cold start or acceleration after idling, the emission of particulate matter will increase significantly, which will significantly increase the overall emission of particulate matter. At this time, only one TWC may not be able to treat the vehicle exhaust A large amount of particulate matter is effectively captured, so vehicles with TWC still have a large risk of excessive particulate matter emission.

In view of this, the present application provides a particle control method of vehicle exhaust and a related device, which can effectively control the amount of particulate matter in vehicle exhaust under various working conditions.

A method for controlling particles of vehicle exhaust provided by the present application is described below through method embodiments, as shown in FIG. 1 , and FIG. 1 is a flow chart of a method for controlling particles of vehicle exhaust provided by an embodiment of the present application. The method include:

S101. Obtain current operating condition data of a target vehicle.

During the actual operation of the vehicle, the amount of particulate matter emitted under different working conditions is different. The amount of particulate matter emitted under certain operating conditions is relatively small, and the amount of particulate matter emitted under certain operating conditions will be relatively large. To achieve effective particle control, first obtain the current operating condition data of the target vehicle. The current operating condition data includes various operating condition data during vehicle operation, for example, the operating condition data of various equipment on the vehicle such as the engine, accelerator, and brakes. .

S102. Determine a corresponding particle control strategy according to the current operating condition data.

After the current operating condition data of the target vehicle is acquired in S101, since the particulate matter emissions are different under different operating conditions, the corresponding particulate matter control strategy can be determined according to the current operating condition data.

S103. According to the particle control strategy, control the opening and closing degrees of the first control valve and the second control valve. The first control valve is used to control the opening and closing of the first exhaust pipeline after the TWC of the target vehicle, and the second control valve is used for After controlling the opening and closing of the second exhaust pipeline after the TWC, a GPF is installed in the second exhaust pipeline, and the GPF is used for particle trapping.

As shown in Figure 2, 201 in Figure 2 is the engine of the vehicle, 202 is the TWC of the vehicle, 203 is the GPF of the vehicle, 204 is the first control valve, and 205 is the second control valve. The particle control strategy in this application is used for Control the opening and closing degree of the first control valve and the second control valve, wherein the first control valve is used to control the first exhaust pipeline after the TWC, and the second control valve is used to control the second exhaust pipeline after the TWC , A particle filter (Gasoline Particulate Filter, GPF) is installed in the second exhaust line, and the GPF is used for particle collection to form a bypass line.

In the related technology, only TWC is installed after the engine. Since TWC has a limited oxidation effect on particulate matter, GPF is introduced in this application. GPF can realize the effective collection of particulate matter. Among them, because GPF is not a directly connected device , if the GPF is directly installed after the TWC, although the number of particulate matter in the vehicle exhaust can be controlled, since the GPF is not a fully conductive device, this will cause a large back pressure on the vehicle, so this application provides a GPF installed The second exhaust pipeline and the first exhaust pipeline directly connected to the TWC control the opening and closing of the first control valve and the second control valve according to the particulate matter control strategy, so as to realize the control of vehicle exhaust under various working conditions. Effective control of the amount of particulate matter.

In some embodiments, the current operating condition data includes the current engine water temperature, and in terms of determining the corresponding particulate matter control strategy according to the current operating condition data, the method includes:

When the current engine water temperature is lower than the water temperature threshold, determine the particulate matter control strategy as controlling the first control valve to be fully closed and controlling the second control valve to be fully open;

When the current engine water temperature is greater than or equal to the water temperature threshold, the current idling time of the target vehicle is obtained, and a particulate matter control strategy is determined according to the current idling time.

Specifically, when the vehicle is actually running, if the engine is in a cold start condition, the vehicle exhaust will contain more particulate matter. For this, the current operating condition data can include the current engine water temperature, and the engine water temperature can be used to judge the engine temperature. Whether it is in cold start condition.

When the current engine water temperature is lower than the water temperature threshold, it means that the engine is in a cold start condition at this time, and the amount of particulate matter in the vehicle exhaust is relatively large, so it can be determined that the particulate matter control strategy is to control the first control valve to be completely closed and the second control valve to be fully opened , that is, according to the particle control strategy, all the vehicle exhaust after TWC can pass through the GPF, and the GPF can capture the particles in the cold start exhaust, so as to achieve the purpose of controlling the number of particles in the vehicle exhaust under cold start conditions.

When the current engine water temperature is greater than or equal to the water temperature threshold, it means that the engine is not in the cold start condition at this time. Since the vehicle is in other conditions, it may also cause a large amount of particulate matter in the vehicle exhaust, so the current idle time of the target vehicle can be obtained. , and determine the corresponding particulate matter control strategy according to the current idle time.

In some embodiments, in determining the particulate matter control strategy based on the current idle time, the method includes:

When the current idle time is less than the time threshold, determine the particulate matter control strategy as controlling the opening degree of the second control valve based on the first valve opening factor k1 of the engine water temperature;

When the current idling time is greater than or equal to the time threshold, the current rate of change of the accelerator pedal of the target vehicle is obtained, and a particle control strategy is determined according to the current rate of change of the accelerator pedal.

Specifically, when the vehicle is not in the cold start condition but in the idling condition, the vehicle may produce more particulate matter due to the acceleration after idling, so after analyzing the current engine water temperature of the target vehicle, it can be calculated according to the current idling speed Time is used to determine the corresponding particle control strategy, and the current idle time is used to indicate the time when the target vehicle is currently stopped and then restarted.

When the current idling time is less than the time threshold, it means that the target vehicle is not in the idling condition at this time. Although it is neither in the cold start condition nor in the idling condition at this time, the number of particles in the vehicle exhaust is closely related to the engine temperature. , so the particulate matter control strategy can be determined as controlling the opening degree of the second control valve based on the first valve opening factor k1 of the current engine water temperature, where the corresponding relationship between the engine water temperature and the valve opening factor is shown in Figure 3, That is, the corresponding first valve opening factor k1 can be determined according to the corresponding relationship between the current engine water temperature and the engine water temperature and the valve opening factor. By controlling the opening degree of the second control valve, the amount of exhaust gas passing through the GPF can be reasonably allocated to realize Under different engine water temperatures, different exhaust gas volumes can be filtered by GPF, effectively reducing the number of particles in vehicle exhaust gas.

When the current idling time is greater than or equal to the time threshold, it means that the target vehicle is in the idling condition, and the number of particulate matter in the vehicle exhaust may increase. For this, the current accelerator pedal change rate of the target vehicle can be obtained, and according to the current accelerator pedal Change rate to determine the corresponding particulate matter control strategy.

In some embodiments, in determining a particulate matter control strategy based on a current accelerator pedal rate, the method includes:

When the current rate of change of the accelerator pedal is greater than or equal to the rate of change threshold, the particulate matter control strategy is determined as controlling the opening degree of the second control valve based on the second valve opening factor k2 of the current rate of change of the accelerator pedal;

When the current rate of change of the accelerator pedal is less than the rate of change threshold, the particle control strategy is determined to control the opening degree of the second control valve based on the third valve opening factor k3 of the engine water temperature and the current rate of change of the accelerator pedal.

Specifically, when the vehicle is in the idling condition, if the vehicle accelerates suddenly, the amount of particulate matter in the vehicle exhaust will increase. Therefore, when the current accelerator pedal change rate is greater than or equal to the change rate threshold, it means that the target vehicle is in the sudden acceleration condition. At this time, the number of particles in the vehicle exhaust is closely related to the rate of change of the accelerator pedal, so it can be determined that the particle control strategy is to control the opening degree of the second control valve based on the second valve opening factor k2 of the current rate of change of the accelerator pedal, where the accelerator pedal The corresponding relationship between the rate of change and the valve opening factor is shown in Figure 4, that is, the corresponding second valve opening can be determined according to the current rate of change of the accelerator pedal and the corresponding relationship between the rate of change of the accelerator pedal and the valve opening factor Factor k2, by controlling the opening degree of the second control valve, the amount of exhaust gas passing through the GPF can be reasonably distributed, and the GPF can be used to filter different amounts of exhaust gas under sudden acceleration after idling, effectively reducing the number of particles in the vehicle exhaust gas.

When the current rate of change of the accelerator pedal is less than the threshold value of the rate of change, it means that the engine is idling at this time, but there is no sudden acceleration. Therefore, the influence of the engine water temperature and the rate of change of the accelerator pedal on the number of particulate matter in the vehicle exhaust can be comprehensively analyzed. The particulate matter control strategy is to control the opening degree of the second control valve based on the third valve opening factor k3 based on the engine water temperature and the current rate of change of the accelerator pedal, so as to realize GPF filtering of different exhaust gas volumes under slow acceleration after idling, and effectively reduce vehicle exhaust gas. the number of particles.

In some embodiments, in order to comprehensively consider the influence of the engine water temperature and the rate of change of the accelerator pedal on the amount of particulate matter in the vehicle exhaust, the opening of the second control valve is controlled based on the third valve opening factor k3 based on the current rate of change of the accelerator pedal and the engine water temperature To an extent, the approach includes:

determining the first valve opening factor k1 based on the current engine water temperature;

determining a second valve opening factor k2 based on the current rate of change of the accelerator pedal;

multiplying the first valve opening factor k1 and the second valve opening factor k2 to obtain the third valve opening factor k3;

The opening degree of the second control valve is controlled based on the third valve opening degree factor k3.

As shown in Figure 5, the corresponding first valve opening factor k1 and the second valve opening factor k2 can be determined according to the current engine water temperature and the current rate of change of the accelerator pedal, and then the first valve opening factor k1 and the second The valve opening factor k2 is multiplied to accurately obtain the third valve opening factor k3, and then the opening degree of the second control valve is controlled based on the third valve opening factor k3.

In some embodiments, in order to achieve a reasonable distribution of exhaust gas after TWC, the closing degree of the first control valve is equivalent to the opening degree of the second control valve, for example, when the opening degree of the second control valve is 80%, the first The degree of closure of the control valve is also 80%.

In some embodiments, in order to realize the one-way flow of gas in the second exhaust pipeline, that is, to prevent the gas in the second exhaust pipeline from flowing backward, a one-way valve can be installed in the second exhaust pipeline, as shown in Figure 2 As shown, 206 in Fig. 2 is a one-way valve.

To sum up, the embodiment of the present application provides a particle control method for vehicle exhaust, the method including: acquiring the current operating condition data of the target vehicle; determining the corresponding particle control strategy according to the current operating condition data; Control strategy, control the opening and closing degree of the first control valve and the second control valve, the first control valve is used to control the opening and closing of the first exhaust pipe after the three-way catalytic converter TWC of the target vehicle, the second control valve It is used to control the opening and closing of the second exhaust pipeline after the TWC. A particle filter GPF is installed in the second exhaust pipeline, and the GPF is used for particle capture. Through the above solution, it is possible to effectively control the amount of particulate matter in vehicle exhaust under various working conditions.

Further, this method activates the second exhaust pipeline installed with GPF in the cold start or acceleration after idling condition, and controls the opening degree of the second control valve according to the engine water temperature and the rate of change of the accelerator pedal, through the first The GPF of the second exhaust pipeline can effectively control the number of particulate matter in the vehicle exhaust and optimize the system back pressure by reasonably controlling the exhaust gas volume of the second exhaust pipeline.

A device for controlling particulates of vehicle exhaust provided by the present application is described below through an embodiment of the device, as shown in FIG. 6 , which is a schematic diagram of a device for controlling particulates of vehicle exhaust provided by an embodiment of the present application. The device includes :

An acquisition unit 601, configured to acquire current operating condition data of the target vehicle;

A determining unit 602, configured to determine a corresponding particulate matter control strategy according to the current operating condition data;

The control unit 603 is configured to control the degree of opening and closing of the first control valve and the second control valve according to the particle control strategy, and the first control valve is used to control the first exhaust pipeline after the three-way catalytic converter TWC of the target vehicle The opening and closing of the second control valve is used to control the opening and closing of the second exhaust pipeline after the TWC. A particle filter GPF is installed in the second exhaust pipeline, and the GPF is used for particle collection.

In some embodiments, the current operating condition data includes the current engine water temperature. In terms of determining the corresponding particulate matter control strategy according to the current operating condition data, the determining unit 602 is specifically configured to:

When the current engine water temperature is lower than the water temperature threshold, determine the particulate matter control strategy as controlling the first control valve to be fully closed and controlling the second control valve to be fully open;

When the current engine water temperature is greater than or equal to the water temperature threshold, the current idling time of the target vehicle is obtained, and a particulate matter control strategy is determined according to the current idling time.

In some embodiments, in terms of determining the particulate matter control strategy according to the current idle time, the determining unit 602 is specifically configured to:

When the current idle time is less than the time threshold, determine the particulate matter control strategy as controlling the opening degree of the second control valve based on the first valve opening factor k1 of the engine water temperature;

When the current idling time is greater than or equal to the time threshold, the current rate of change of the accelerator pedal of the target vehicle is obtained, and a particle control strategy is determined according to the current rate of change of the accelerator pedal.

In some embodiments, in terms of determining the particulate matter control strategy according to the current rate of change of the accelerator pedal, the determining unit 602 is specifically configured to:

When the current rate of change of the accelerator pedal is greater than or equal to the rate of change threshold, the particulate matter control strategy is determined as controlling the opening degree of the second control valve based on the second valve opening factor k2 of the current rate of change of the accelerator pedal;

When the current rate of change of the accelerator pedal is less than the rate of change threshold, the particle control strategy is determined to control the opening degree of the second control valve based on the third valve opening factor k3 of the engine water temperature and the current rate of change of the accelerator pedal.

In some embodiments, the determination unit 602 is specifically configured to:

determining the first valve opening factor k1 based on the current engine water temperature;

determining a second valve opening factor k2 based on the current rate of change of the accelerator pedal;

multiplying the first valve opening factor k1 and the second valve opening factor k2 to obtain the third valve opening factor k3;

The opening degree of the second control valve is controlled based on the third valve opening degree factor k3.

In some embodiments, the degree of closure of the first control valve corresponds to the degree of opening of the second control valve.

It should be noted that, for the specific working process of each module provided in the above-mentioned embodiments of the present application, reference may be made to corresponding implementation manners in the above-mentioned method embodiments, and details are not repeated here.

Another embodiment of the present application provides an electronic device, including:

memory for storing executable instructions;

When the processor is configured to execute the executable instructions stored in the memory, implement the methods in the above method embodiments in the embodiments of the present application.

Another embodiment of the present application provides a computer-readable storage medium storing executable instructions for implementing the methods in the above-mentioned method embodiments of the embodiments of the present application when executed by a processor.

Professionals can further realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software or a combination of the two. In order to clearly illustrate the possible For interchangeability, in the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A particulate control method for vehicle exhaust, the method comprising:

acquiring current operation condition data of a target vehicle;

determining a corresponding particulate matter control strategy according to the current operation condition data;

according to the particulate matter control strategy, the opening and closing degrees of a first control valve and a second control valve are controlled, the first control valve is used for controlling the opening and closing of a first exhaust pipeline behind a three-way catalytic converter TWC of the target vehicle, the second control valve is used for controlling the opening and closing of a second exhaust pipeline behind the TWC, a particulate trap GPF is installed in the second exhaust pipeline, and the GPF is used for capturing particulates.

2. The method of claim 1, wherein the current operating condition data comprises a current engine water temperature, and wherein the determining a corresponding particulate matter control strategy based on the current operating condition data comprises:

when the current engine water temperature is smaller than a water temperature threshold value, determining the particulate matter control strategy to control the first control valve to be completely closed and control the second control valve to be completely opened;

and when the current engine water temperature is greater than or equal to the water temperature threshold value, acquiring the current idle time of the target vehicle, and determining the particulate matter control strategy according to the current idle time.

3. The method of claim 2, wherein said determining said particulate matter control strategy based on said current idle time comprises:

when the current idle time is smaller than a time threshold, determining that the particulate matter control strategy is to control the opening degree of the second control valve based on a first valve opening factor k1 of the engine water temperature;

and when the current idle time is greater than or equal to the time threshold, acquiring the current accelerator pedal change rate of the target vehicle, and determining the particulate matter control strategy according to the current accelerator pedal change rate.

4. The method of claim 3, wherein said determining said particulate matter control strategy based on said current accelerator pedal rate of change comprises:

when the current accelerator pedal change rate is greater than or equal to a change rate threshold, determining that the particulate matter control strategy is to control the opening degree of the second control valve based on a second valve opening factor k2 of the current accelerator pedal change rate;

and when the current accelerator pedal change rate is smaller than the change rate threshold, determining that the particulate matter control strategy is to control the opening degree of the second control valve based on the engine water temperature and a third valve opening factor k3 of the current accelerator pedal change rate.

5. The method according to claim 1, characterized in that the third valve opening factor k3 based on the current accelerator pedal change rate and the engine water temperature controls the opening degree of the second control valve, including:

determining a first valve opening factor k1 based on the current engine water temperature;

determining a second valve opening factor k2 based on the current accelerator pedal change rate;

multiplying the first valve opening factor k1 and the second valve opening factor k2 to obtain the third valve opening factor k3;

and controlling the opening degree of the second control valve based on the third valve opening degree factor k 3.

6. The method of claims 1-5, wherein the degree of closure of the first control valve corresponds to the degree of opening of the second control valve.

7. A particulate control device for vehicle exhaust, the device comprising:

the acquisition unit is used for acquiring current operation condition data of the target vehicle;

the determining unit is used for determining a corresponding particulate matter control strategy according to the current operation condition data;

the control unit is used for controlling the opening and closing degree of a first control valve and a second control valve according to the particulate matter control strategy, the first control valve is used for controlling the opening and closing of a first exhaust pipeline behind a three-way catalytic converter TWC of the target vehicle, the second control valve is used for controlling the opening and closing of a second exhaust pipeline behind the TWC, a particulate trap GPF is installed in the second exhaust pipeline, and the GPF is used for capturing particulates.

8. The apparatus of claim 7, wherein the degree of closure of the first control valve corresponds to the degree of opening of the second control valve.

9. An electronic device, comprising:

a memory for storing executable instructions;

a processor for implementing the particulate control method of vehicle exhaust according to any one of claims 1 to 6 when executing the executable instructions stored in the memory.

10. A computer readable storage medium storing executable instructions for implementing the particulate control method of vehicle exhaust according to any one of claims 1 to 6 when executed by a processor.

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