CN113513420B - Method and device for treating carbon particles in particle catcher - Google Patents
Method and device for treating carbon particles in particle catcher Download PDFInfo
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- CN113513420B CN113513420B CN202110604249.3A CN202110604249A CN113513420B CN 113513420 B CN113513420 B CN 113513420B CN 202110604249 A CN202110604249 A CN 202110604249A CN 113513420 B CN113513420 B CN 113513420B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
- F02D41/029—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a particulate filter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The application relates to the technical field of vehicle aftertreatment, and discloses a method and a device for treating carbon particles in a particle catcher, wherein the method comprises the following steps: the method comprises the steps that after carbon particle treatment is determined to be needed based on the carbon loading capacity in a particle trap of a vehicle, the current running working condition of the vehicle is obtained; if the current operation working condition is a target working condition, determining a target rotating speed of an engine of the vehicle based on the current operation parameters of the vehicle; the target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operation parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine; and under the current operation working condition, after the current original rotating speed of the engine is adjusted to the target rotating speed, controlling the fuel combustion of the vehicle so as to enable the particle catcher to actively regenerate based on the heat of the fuel combustion.
Description
Technical Field
The application relates to the technical field of vehicle aftertreatment, in particular to a method and a device for treating carbon particles in a particle catcher.
Background
The operation of the engine of a vehicle produces particulate emissions, which are one of the main pollutants of the engine. In order to reduce the emission of particles into the atmosphere, a particle trap is provided in an exhaust system of a vehicle, and particles are captured by the particle trap before the emission of particles into the atmosphere, thereby effectively reducing the emission of particles. During use of the particulate trap, as particulates accumulate, engine exhaust backpressure increases, affecting engine performance, and thus, it is desirable to remove the accumulated particulates (carbon particulates) from the particulate trap in a timely manner.
In the related art, when the ignition requirement of fuel oil is met, heat is provided for the particle catcher through fuel oil combustion, and particles and O in exhaust gas at high temperature 2 Chemical reaction takes place to eliminate the particles, and active regeneration of the particle catcher is carried out.
However, vehicles are in large partUnder different working conditions, the fuel ignition requirement is not met, and the particles can only be mixed with NO and NO in the waste gas at a lower temperature 2 The particles are eliminated by chemical reaction, and the particles in the particle catcher can not be effectively removed by passive regeneration of the particle catcher.
Disclosure of Invention
The application provides a method and a device for treating carbon particles in a particle catcher, which are used for effectively removing the particles in the particle catcher.
In a first aspect, embodiments of the present application provide a method for treating carbon particles in a particle trap, the method including:
the method comprises the steps that after carbon particle treatment is determined to be needed based on the carbon loading capacity in a particle trap of a vehicle, the current running working condition of the vehicle is obtained;
if the current operation working condition is a target working condition, determining a target rotating speed of an engine of the vehicle based on the current operation parameters of the vehicle; the target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operating parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine;
and under the current operation working condition, after the current original rotating speed of the engine is adjusted to the target rotating speed, controlling the fuel combustion of the vehicle so as to enable the particle catcher to actively regenerate based on the heat of the fuel combustion.
According to the scheme, when the vehicle runs at a low speed or is hoisted, the fuel ignition requirement cannot be met (namely the temperature of aftertreatment is lower than the ignition temperature of fuel in aftertreatment, and the fuel in the aftertreatment cannot be combusted), so that after the particle trap needs to be subjected to carbon particle treatment, if the vehicle is in the two working conditions, the target rotating speed of the engine needs to be determined according to the current operating parameters of the vehicle, and the fuel ignition requirement is met by properly increasing the rotating speed of the engine on the basis of the load generated by the current operating working condition, so that the particle trap can be actively regenerated on the basis of the heat generated by fuel combustion on the premise of not influencing the normal operation of the vehicle, and particles in the particle trap can be effectively removed.
In some optional embodiments, if the current operating condition is a driving operation and the current vehicle speed of the vehicle is less than a preset vehicle speed, determining a target rotation speed of an engine of the vehicle based on the current operating parameter of the vehicle includes:
and determining the engine speed corresponding to the current vehicle speed as the target speed based on a first corresponding relation between a preset vehicle speed and the engine speed.
According to the scheme, the first corresponding relation between the vehicle speed and the engine speed is preset in advance, and when the current vehicle speed of the vehicle is small, the target speed of the engine can be determined conveniently according to the first corresponding relation.
In some alternative embodiments, the greater the vehicle speed in the first correspondence, the lower the corresponding engine speed.
According to the scheme, the smaller the vehicle speed of the vehicle is, the smaller the load is, and the more difficult the fuel ignition requirement is to be met, so that the greater the vehicle speed is, the smaller the corresponding engine rotating speed is, and the smaller the vehicle speed is, the greater the corresponding engine rotating speed is; therefore, when the vehicle speed is low, the requirement of fuel ignition is met by the rotating speed of the high engine corresponding to the high rotating speed of the high engine on the basis of low load generated by driving; when the vehicle speed is high, the fuel ignition requirement is met by the low engine speed corresponding to the low engine speed on the basis of the high load generated by running.
In some optional embodiments, if the current operating condition is a hoisting operation, determining a target rotation speed of an engine of the vehicle based on the current operating parameter of the vehicle includes:
and determining the engine rotating speed corresponding to the current output torque as the target rotating speed based on a preset second corresponding relation between the engine output torque and the engine rotating speed.
According to the scheme, the second corresponding relation between the output torque of the engine and the rotating speed of the engine is preset in advance, and the target rotating speed of the engine can be conveniently determined according to the second corresponding relation during hoisting operation.
In some alternative embodiments, the greater the engine output torque in the second correspondence relationship, the smaller the corresponding engine speed.
According to the scheme, the smaller the output torque of the engine is, the smaller the load is, and the more difficult the fuel ignition requirement is to be met, so that the larger the output torque of the engine in the second corresponding relation is, the smaller the corresponding engine rotating speed is, the smaller the output torque of the engine is, and the larger the corresponding engine rotating speed is; therefore, when the output torque of the engine is small, the requirement of fuel ignition is met by the rotating speed of the large engine on the basis of small load generated by hoisting corresponding to the rotating speed of the large engine; when the output torque of the engine is larger, the requirement of fuel ignition is met through the rotating speed of the smaller engine on the basis of larger load generated by hoisting corresponding to the rotating speed of the smaller engine.
In some optional embodiments, if the number of times of performing the active regeneration reaches a preset number of times within a preset time period before determining that the carbon particle treatment is required, after adjusting the engine from the current original rotation speed to the target rotation speed, the method further includes:
after the carbon load in the particulate trap is less than the target carbon load, the engine is turned back to the original speed and fuel is controlled to stop burning.
According to the scheme, the number of times of active regeneration is large in the preset time period, and it is indicated that carbon particles in the particle trap are not cleaned in place, or carbon particles generated by an engine are large in the preset time period, so in the scene, the carbon loading amount in the particle trap needs to be obtained in real time after the rotating speed of the engine is adjusted, and after the fact that the carbon loading amount in the particle trap is determined to be cleaned in place (the carbon loading amount in the particle trap is smaller than the target carbon loading amount), the rotating speed of the engine is adjusted back, and fuel oil is controlled to stop burning, so that the active regeneration of the particle trap is stopped.
In some alternative embodiments, if the number of times of performing the active regeneration does not reach the preset number of times within the preset period before determining that the carbon particle treatment is required, after adjusting the engine from the current original speed to the target duration of the target speed, the method further includes:
and adjusting the engine to the original rotating speed, and controlling fuel to stop combustion.
According to the scheme, because the number of times of active regeneration is less in the preset time period, the carbon particles in the particle trap are cleared in place, or the carbon particles generated by the engine in the preset time period are less, in the scene, the carbon loading amount in the particle trap does not need to be acquired in real time, the rotating speed of the engine can be adjusted back after the target duration of the rotating speed of the engine is adjusted, and fuel is controlled to stop burning, so that the active regeneration of the particle trap is stopped.
In a second aspect, an embodiment of the present application provides a carbon particle processing apparatus, including:
the working condition determining module is used for acquiring the current operating working condition of the vehicle after determining that carbon particle treatment is required based on the carbon loading in the particle trap of the vehicle;
the rotating speed determining module is used for determining the target rotating speed of the engine of the vehicle based on the current operating parameters of the vehicle if the current operating working condition is the target working condition; the target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operating parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine;
and the regeneration processing module is used for controlling the fuel combustion of the vehicle after the current original rotating speed of the engine is adjusted to the target rotating speed under the current operating working condition so as to enable the particle catcher to actively regenerate based on the heat of the fuel combustion.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor and a memory;
wherein the memory has stored a program code which, when being executed by the processor, causes the processor to carry out the method for carbon particle treatment in a particle trap according to any of the first aspects.
In a fourth aspect, the present application provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the method for processing carbon particles in a particle trap according to any one of the first aspect is implemented.
In addition, for technical effects brought by any one implementation manner of the second aspect to the fourth aspect, reference may be made to technical effects brought by different implementation manners of the first aspect, and details are not described here.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is an architectural diagram of a vehicle provided in an embodiment of the present application;
FIG. 2 is a schematic flow chart of a method for treating carbon particles in a first particle trap according to an embodiment of the present disclosure;
FIG. 3 is a schematic flow chart of a method for treating carbon particles in a second particle trap according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart of a carbon particle treatment method in a third particulate trap provided by an embodiment of the present application;
fig. 5 is a schematic structural diagram of a carbon particle processing apparatus according to an embodiment of the present disclosure;
fig. 6 is a schematic block diagram of an electronic device provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the embodiment of the present application, "fuel combustion" refers to post-treatment in-fuel injection and combustion.
In the description of the present application, unless otherwise expressly specified or limited, the term "coupled" is to be construed broadly, e.g., as meaning directly coupled to or indirectly coupled through intervening elements, or as meaning communicating between two devices. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
During the use of the particulate trap, as particulates accumulate, engine exhaust backpressure increases, affecting engine performance, and therefore, it is desirable to remove the accumulated particulates from the particulate trap in a timely manner. In the related art, when the requirement of fuel ignition is met, heat is provided for the particle catcher through fuel combustion, and particles and O in exhaust gas at high temperature 2 Chemical reaction takes place to eliminate particles, and active regeneration of the particle catcher is carried out.
However, the vehicle does not meet the fuel ignition requirement under most working conditions, and the particles can only be mixed with NO and NO in the exhaust gas at a lower temperature 2 Take place ofThe chemical reaction eliminates the particles, and the passive regeneration of the particle catcher is carried out, so that the particles in the particle catcher can not be effectively removed.
Some embodiments control the vehicle to stop even if the vehicle is operating if the vehicle is parked (the vehicle is not running) and the carbon load in the particulate trap is too high, and adjust the engine to a very high speed (e.g., 1900 rpm) to achieve the fuel-start requirement, thereby controlling the fuel combustion in the vehicle's aftertreatment, and providing heat to the particulate trap after the fuel combustion to enable active regeneration of the particulate trap.
However, for some engineering work vehicles (such as cranes and the like), most of the time is in the parking process, namely, the hoisting operation is carried out while the vehicles are parked. The above embodiment controls the vehicle to stop working as long as the vehicle is parked and the carbon loading in the particle catcher is too large, which seriously affects the working efficiency of such vehicles.
In addition, when the vehicle runs at a low speed, the load is small, and the fuel ignition requirement is not met, so that the embodiment is difficult to effectively remove the particles in the particle catcher in the scene.
Based on this, the embodiment of this application provides a carbon particle treatment method and device in the particle catcher, this method includes: the method comprises the steps that after carbon particle treatment is determined to be needed based on the carbon loading capacity in a particle trap of a vehicle, the current running working condition of the vehicle is obtained; if the current operation working condition is a target working condition, determining a target rotating speed of an engine of the vehicle based on the current operation parameters of the vehicle; the target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operation parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine; and under the current operation working condition, after the current original rotating speed of the engine is adjusted to the target rotating speed, controlling the fuel combustion of the vehicle so as to enable the particle catcher to actively regenerate based on the heat of the fuel combustion.
According to the scheme, when the vehicle runs at a low speed or is hoisted, the fuel ignition requirement cannot be met, so that after the particle trap needs to be subjected to carbon particle treatment, if the vehicle has the two working conditions, the target rotating speed of the engine needs to be determined according to the current operating parameters of the vehicle, and on the basis of the load generated by the current operating condition, the fuel ignition requirement is met by properly increasing the rotating speed of the engine, so that the particle trap can be actively regenerated on the basis of the heat of fuel combustion on the premise of not influencing the normal operation of the vehicle, and particles in the particle trap are effectively removed.
Referring to fig. 1, a vehicle 100 according to an embodiment of the present invention includes a particle trap 110, an electronic device 120, and an engine 130.
if the current operating condition is a target operating condition, determining a target rotating speed of the engine 130 based on the current operating parameters of the vehicle;
under the current operating condition, after the engine 130 is adjusted from the current original rotation speed to the target rotation speed, fuel combustion of the vehicle is controlled, so that the particulate trap 110 performs active regeneration based on the heat of the fuel combustion.
The Electronic device is a device that implements a Control function in a vehicle, such as an Electronic Control Unit (ECU).
The particulate trap is a device that traps particulates generated by the engine, and in some embodiments, the particulate trap is a wall-flow particulate trap.
The vehicle according to the embodiment of the present application includes other components besides the particle trap 110, the electronic device 120, and the engine 130 shown in fig. 1, which are not described herein again. In some specific embodiments, the vehicle is a crane. In addition, the above-described structural diagrams are merely exemplary, and the vehicle is not specifically limited in the embodiments of the present application.
The following describes the technical solutions of the present application and how to solve the above technical problems in detail with reference to the accompanying drawings and specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
The embodiment of the present application provides a first method for treating carbon particles in a particle trap, which is applied to the electronic device described above, and as shown in fig. 2, the method may include:
step S201: the method comprises the steps of obtaining the current running condition of the vehicle after determining that carbon particle treatment is needed based on the carbon loading in a particle trap of the vehicle.
The present embodiment may determine whether carbon particle treatment is required by, but not limited to, the following means:
judging whether the carbon loading capacity in the particle catcher reaches a carbon loading threshold value, and if the carbon loading capacity in the particle catcher reaches the carbon loading threshold value, determining that carbon particle treatment is required; if the carbon loading in the particulate trap does not reach the carbon loading threshold, it is determined that carbon particulate treatment is not required.
The carbon-supported threshold value can be set according to actual application scenes, and different carbon-supported threshold values can be set for different vehicles.
In addition, the carbon loading in the particle trap may be determined based on the signal indicative of carbon loading, which is not described in detail herein.
The specific implementation manner of obtaining the current operating condition of the vehicle is not limited in this embodiment, for example, whether the vehicle is performing hoisting operation may be determined according to the remote accelerator switching signal, and whether the vehicle is driving or parking may be determined according to the acquired current vehicle speed, for example:
1) If the remote throttle switching signal represents activation, the engine can receive the landing leg throttle and the remote throttle signal to determine that the vehicle is subjected to hoisting operation;
2) If the representation of the remote throttle switching signal is not activated and the current speed is greater than zero, determining that the vehicle is running;
3) And if the remote accelerator switching signal is not activated and the current vehicle speed is equal to zero, determining that the vehicle is in a parking state.
The above operating conditions and the manner of obtaining the operating conditions are only exemplary, and the present embodiment does not specifically limit this.
Step S202: and if the current operation working condition is the target working condition, determining the target rotating speed of the engine of the vehicle based on the current operation parameters of the vehicle.
The target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operation parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine.
The specific implementation manners of determining the target rotation speed are different according to different operating parameters corresponding to different working conditions, and two specific examples are described below:
first mode
When the current speed of the vehicle is small, the load is small, the temperature of the post-treatment is lower than the ignition temperature of the fuel in the post-treatment, and the fuel in the post-treatment cannot be injected and combusted. In the scene, the current vehicle speed represents the current load condition, the more reasonable target rotating speed of the engine can be determined based on the current vehicle speed, and the fuel ignition requirement can be met by properly increasing the rotating speed of the engine on the basis of the load generated by driving. Based on this, it is necessary to determine the target rotation speed of the engine based on the current vehicle speed.
In some optional embodiments, the engine speed corresponding to the current vehicle speed is determined as the target speed based on a first corresponding relationship between a preset vehicle speed and the engine speed. By presetting the first corresponding relation between the vehicle speed and the engine speed in advance, when the current vehicle speed of the vehicle is small, the target speed of the engine can be determined conveniently according to the first corresponding relation.
In implementation, the specific relationship between the vehicle speed and the engine speed in the first corresponding relationship may be set according to an actual application scenario, which is not specifically limited in this embodiment, for example:
the greater the vehicle speed in the first correspondence, the smaller the corresponding engine speed.
Because the vehicle speed is smaller, the load is also smaller, and the fuel ignition requirement is more difficult to achieve, the larger the vehicle speed is, the smaller the corresponding engine speed is, and the smaller the vehicle speed is, the larger the corresponding engine speed is; therefore, when the vehicle speed is low, the requirement of fuel ignition is met by the rotating speed of the large engine corresponding to the rotating speed of the large engine on the basis of low load generated by driving; when the vehicle speed is high, the fuel ignition requirement is met by the low engine speed corresponding to the low engine speed on the basis of the high load generated by running.
Second mode
When the vehicle is hoisted, the load is small, the temperature of the post-treatment is lower than the ignition temperature of the fuel oil in the post-treatment, and the fuel oil in the post-treatment can not be injected and combusted. In the scene, the current output torque of the engine represents the current load condition, the reasonable target rotating speed of the engine can be determined based on the current output torque, and the fuel ignition requirement can be met by properly increasing the rotating speed of the engine on the basis of hoisting the generated load. Based on this, it is necessary to determine the target rotation speed of the engine based on the current output torque.
In some optional embodiments, the engine speed corresponding to the current output torque is determined as the target speed based on a preset second corresponding relationship between the engine output torque and the engine speed. The second corresponding relation between the output torque of the engine and the rotating speed of the engine is preset in advance, and the target rotating speed of the engine can be determined conveniently according to the second corresponding relation during hoisting operation.
In implementation, the specific association between the engine output torque and the engine speed in the second corresponding relationship may be set according to an actual application scenario, which is not specifically limited in this embodiment, for example:
the greater the engine output torque in the second correspondence relationship, the smaller the corresponding engine rotational speed.
Because the smaller the engine output torque is, the smaller the load is, and the more difficult the fuel ignition requirement is to be met, the larger the engine output torque is in the second corresponding relation, the smaller the corresponding engine rotating speed is, the smaller the engine output torque is, and the larger the corresponding engine rotating speed is; therefore, when the output torque of the engine is smaller, the requirement of fuel ignition is met by the rotating speed of the larger engine on the basis of smaller load generated by hoisting corresponding to the rotating speed of the larger engine; when the output torque of the engine is larger, the requirement of fuel ignition is met through the rotating speed of the smaller engine on the basis of larger load generated by hoisting corresponding to the rotating speed of the smaller engine.
Step S203: and under the current operating condition, after the current original rotating speed of the engine is adjusted to the target rotating speed, controlling fuel combustion of the vehicle so as to enable the particle catcher to perform active regeneration based on the heat of the fuel combustion.
As described above, when the current speed of the vehicle is low, the target rotating speed of the engine which is reasonable is determined based on the current speed, and on the basis of the load generated by driving, the rotating speed of the engine is properly increased to meet the fuel ignition requirement, so that fuel combustion can be controlled to provide heat for the particle trap, and therefore the particle trap can be actively regenerated on the premise of not influencing the normal driving of the vehicle. In addition, when the vehicle is hoisted, the reasonable target rotating speed of the engine is determined based on the current output torque, and on the basis of the load generated by hoisting, the rotating speed of the engine is properly increased to meet the fuel ignition requirement, so that the fuel combustion can be controlled, heat is provided for the particle trap, and the particle trap can be actively regenerated on the premise of not influencing the normal hoisting operation of the vehicle.
It will be appreciated that the increased speed of the engine after the engine adjustment is used only to increase the aftertreatment temperature and does not affect the current operation.
Above-mentioned scheme, because the vehicle is when traveling with less speed of a motor vehicle, or when carrying out the hoist and mount operation, can not satisfy the fuel and initiate burning the requirement, consequently after confirming that the particle catcher needs to carry out carbon particle processing, if the vehicle is above-mentioned two kinds of operating modes, need confirm the target rotational speed of engine according to the current operating parameter of vehicle, on the basis of the load that current operating mode produced, reach the fuel and initiate burning the requirement through the rotational speed that suitably improves the engine, consequently under the prerequisite that does not influence the normal operation of vehicle, the particle catcher just can carry out initiative regeneration based on the heat of fuel burning, thereby effectively clear away the granule in the particle catcher.
In view of the situation that the number of times of performing active regeneration reaches a preset number of times within a preset time period before determining that carbon particle treatment is required, embodiments of the present application provide a second method for treating carbon particles in a particle trap, which is applied to the electronic device, as shown in fig. 3, and the method may include:
step S301: after determining that carbon particulate treatment is required based on the carbon loading in a particulate trap of a vehicle, obtaining a current operating condition of the vehicle.
Step S302: and if the current operation working condition is the target working condition, determining the target rotating speed of the engine of the vehicle based on the current operation parameters of the vehicle.
The target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operating parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine.
Step S303: and under the current operation working condition, after the current original rotating speed of the engine is adjusted to the target rotating speed, controlling the fuel combustion of the vehicle so as to enable the particle catcher to actively regenerate based on the heat of the fuel combustion.
The specific implementation manner of steps S301 to S303 can refer to steps S201 to S203 described above, and will not be described herein again.
Step S304: after the carbon load in the particulate trap is less than the target carbon load, the engine is turned back to the original speed and fuel is controlled to stop burning.
In the implementation, in the preset time period, the number of times of active regeneration is large, which indicates that carbon particles in the particulate trap are not cleaned in place, or that carbon particles generated by the engine are large in the preset time period, so in such a scenario, it is necessary to stop active regeneration after it is determined that carbon particles in the particulate trap are cleaned in place.
The preset times can be set according to an actual application scene, for example: in scenarios where there is a high demand on engine performance, or where the particulate trap is used for a long period of time, the predetermined number of times may be set to be greater.
According to the scheme, the number of times of active regeneration is large in the preset time period, and it is indicated that carbon particles in the particle trap are not cleaned in place, or carbon particles generated by an engine are large in the preset time period, so in the scene, the carbon loading amount in the particle trap needs to be obtained in real time after the rotating speed of the engine is adjusted, and after the fact that the carbon loading amount in the particle trap is determined to be cleaned in place (the carbon loading amount in the particle trap is smaller than the target carbon loading amount), the rotating speed of the engine is adjusted back, and fuel oil is controlled to stop burning, so that the active regeneration of the particle trap is stopped.
In view of the situation that the number of times of performing active regeneration within the preset time period does not reach the preset number of times, the embodiment of the present application provides a third method for treating carbon particles in a particle trap, which is applied to the electronic device, as shown in fig. 4, and the method may include:
step S401: after determining that carbon particulate treatment is required based on the carbon loading in a particulate trap of a vehicle, obtaining a current operating condition of the vehicle.
Step S402: and if the current operation working condition is the target working condition, determining the target rotating speed of the engine of the vehicle based on the current operation parameters of the vehicle.
The target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operation parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine.
Step S403: and under the current operating condition, after the current original rotating speed of the engine is adjusted to the target rotating speed, controlling fuel combustion of the vehicle so as to enable the particle catcher to perform active regeneration based on the heat of the fuel combustion.
The specific implementation manner of steps S401 to S403 can refer to steps S201 to S203 described above, and will not be described herein again.
Step S404: after the engine is adjusted to the target speed from the current original speed for the target duration, the engine is adjusted back to the original speed, and fuel is controlled to stop burning.
In the implementation, in the preset time period, the number of times of active regeneration is less, which indicates that carbon particles in the particulate trap are cleaned in place, or carbon particles generated by the engine in the preset time period are less, and in such a scene, after the target duration of the engine speed is adjusted, the active regeneration can be stopped.
According to the scheme, the number of times of active regeneration is small in the preset time period, so that carbon particles in the particle trap are cleaned in place, or carbon particles generated by the engine in the preset time period are small, in such a scene, the carbon loading amount in the particle trap does not need to be acquired in real time, after the target duration of the engine speed is adjusted, the engine speed can be adjusted back, fuel is controlled to stop burning, and the active regeneration of the particle trap is stopped.
As shown in fig. 5, based on the same inventive concept, an embodiment of the present application provides a carbon particle processing apparatus 500, including:
the working condition determining module 501 is configured to obtain a current operating condition of the vehicle after determining that carbon particle processing is required based on a carbon loading amount in a particle trap of the vehicle;
a rotation speed determination module 502, configured to determine a target rotation speed of an engine of the vehicle based on a current operation parameter of the vehicle if the current operation condition is a target condition; the target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operating parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine;
and a regeneration processing module 503, configured to control fuel combustion of the vehicle after the engine is adjusted from the current original rotation speed to the target rotation speed under the current operating condition, so that the particulate trap performs active regeneration based on heat of the fuel combustion.
In some optional embodiments, if the current operating condition is a driving operation and the current vehicle speed of the vehicle is less than a preset vehicle speed, the rotation speed determining module 502 is specifically configured to:
and determining the engine speed corresponding to the current vehicle speed as the target speed based on a first corresponding relation between a preset vehicle speed and the engine speed.
In some alternative embodiments, the greater the vehicle speed in the first correspondence, the lower the corresponding engine speed.
In some optional embodiments, if the current operating condition is a hoisting operation, the rotation speed determining module 502 is specifically configured to:
and determining the engine speed corresponding to the current output torque as the target speed based on a preset second corresponding relation between the engine output torque and the engine speed.
In some alternative embodiments, the greater the engine output torque in the second correspondence relationship, the smaller the corresponding engine speed.
In some optional embodiments, if the number of times of performing the active regeneration reaches a preset number of times within a preset time period before determining that the carbon particle treatment is required, the regeneration treatment module 503 is further configured to, after adjusting the engine from the current original rotation speed to the target rotation speed:
after the carbon load in the particulate trap is less than the target carbon load, the engine is turned back to the original speed and fuel is controlled to stop burning.
In some alternative embodiments, if the number of times of performing the active regeneration does not reach the preset number of times within the preset time period before determining that the carbon particulate treatment is required, the regeneration treatment module 503, after adjusting the engine from the current original speed to the target speed for the target duration, is further configured to:
and adjusting the engine back to the original rotating speed, and controlling fuel to stop combustion.
Since the apparatus is the apparatus in the method in the embodiment of the present application, and the principle of the apparatus for solving the problem is similar to that of the method, the implementation of the apparatus may refer to the implementation of the method, and repeated details are not repeated.
As shown in fig. 6, based on the same inventive concept, an embodiment of the present application provides an electronic device 600, including: a processor 601 and a memory 602;
the memory 602 may be a volatile memory (RAM), such as a random-access memory (RAM); the memory 602 may also be a non-volatile memory (non-volatile memory), such as a read-only memory (rom), a flash memory (flash memory), a hard disk (HDD) or a solid-state drive (SSD); or the memory 602 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory 602 may be a combination of the above.
The processor 601 may include one or more Central Processing Units (CPUs), graphics Processing Units (GPUs), or digital Processing units (dsps), among others.
The specific connection medium between the memory 602 and the processor 601 is not limited in the embodiments of the present application. In the embodiment of the present application, the memory 602 and the processor 601 are connected through a bus 603 in fig. 6, the bus 603 is represented by a thick line in fig. 6, and the bus 603 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
Wherein the memory 602 stores program code which, when executed by the processor 601, causes the processor 601 to perform the following process:
the method comprises the steps that after carbon particle treatment is determined to be needed based on the carbon loading capacity in a particle trap of a vehicle, the current running working condition of the vehicle is obtained;
if the current operation working condition is a target working condition, determining a target rotating speed of an engine of the vehicle based on the current operation parameters of the vehicle; the target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operation parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine;
and under the current operation working condition, after the current original rotating speed of the engine is adjusted to the target rotating speed, controlling the fuel combustion of the vehicle so as to enable the particle catcher to actively regenerate based on the heat of the fuel combustion.
In some optional embodiments, if the current operating condition is a driving operation and the current vehicle speed of the vehicle is less than a preset vehicle speed, the processor 601 specifically executes:
and determining the engine speed corresponding to the current vehicle speed as the target speed based on a first corresponding relation between a preset vehicle speed and the engine speed.
In some alternative embodiments, the greater the vehicle speed in the first correspondence, the lower the corresponding engine speed.
In some optional embodiments, if the current operating condition is a hoisting operation, the processor 601 specifically executes:
and determining the engine rotating speed corresponding to the current output torque as the target rotating speed based on a preset second corresponding relation between the engine output torque and the engine rotating speed.
In some alternative embodiments, the greater the engine output torque in the second correspondence relationship, the smaller the corresponding engine speed.
In some optional embodiments, if the number of times of performing the active regeneration reaches a preset number of times within a preset time period before determining that the carbon particulate treatment is required, the processor 601 further performs, after adjusting the engine from the current original rotation speed to the target rotation speed:
after the carbon load in the particulate trap is less than the target carbon load, the engine is turned back to the original speed and fuel is controlled to stop burning.
In some optional embodiments, if the number of times of performing the active regeneration does not reach the preset number of times within the preset time period before determining that the carbon particulate treatment is required, the processor 601 further performs, after adjusting the engine from the current original rotation speed to the target rotation speed for the target time period:
and adjusting the engine to the original rotating speed, and controlling fuel to stop combustion.
Since the electronic device is an electronic device for executing the method in the embodiment of the present application, and the principle of the electronic device for solving the problem is similar to that of the method, reference may be made to the implementation of the method for the implementation of the electronic device, and repeated details are not described again.
Embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, performs the steps of the method for treating carbon particles in a particle catcher as described above. The readable storage medium may be a nonvolatile readable storage medium, among others.
The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, and/or other programmable apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.
Accordingly, the present application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A method of treating carbon particles in a particle trap, the method comprising:
the method comprises the steps that after carbon particle treatment is determined to be needed based on the carbon loading capacity in a particle trap of a vehicle, the current running working condition of the vehicle is obtained;
if the current operation working condition is a target working condition, determining a target rotating speed of an engine of the vehicle based on the current operation parameters of the vehicle; the target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operating parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine;
under the current operation condition, the current original rotating speed of the engine is adjusted to the target rotating speed, so that the exhaust temperature in the post-treatment of the vehicle reaches the fuel ignition temperature;
controlling aftertreatment fuel injection to actively regenerate the particulate trap based on heat from fuel combustion.
2. The method of claim 1, wherein if the current operating condition is a driving operation and the current vehicle speed of the vehicle is less than a preset vehicle speed, determining a target rotation speed of an engine of the vehicle based on the current operating parameters of the vehicle comprises:
and determining the engine speed corresponding to the current vehicle speed as the target speed based on a first corresponding relation between a preset vehicle speed and the engine speed.
3. The method of claim 2, wherein the greater the vehicle speed in the first correspondence, the lower the corresponding engine speed.
4. The method of claim 1, wherein determining a target rotational speed of an engine of the vehicle based on the current operating parameters of the vehicle if the current operating condition is a hoist operation comprises:
and determining the engine rotating speed corresponding to the current output torque as the target rotating speed based on a preset second corresponding relation between the engine output torque and the engine rotating speed.
5. The method of claim 4, wherein the greater the engine output torque in the second correspondence, the lower the corresponding engine speed.
6. The method according to any one of claims 1 to 5, wherein if the number of times of performing the active regeneration reaches a preset number of times within a preset period of time before it is determined that the carbon particle treatment is required, after adjusting the engine from a current original rotation speed to the target rotation speed, further comprising:
after the carbon load in the particulate trap is less than the target carbon load, the engine is turned back to the original speed and fuel is controlled to stop burning.
7. The method according to any one of claims 1 to 5, wherein if the number of times of performing active regeneration does not reach a preset number of times within a preset period of time before it is determined that the carbon particulate treatment is required, after adjusting the engine from a current original speed to the target period of time at the target speed, further comprising:
and adjusting the engine back to the original rotating speed, and controlling fuel to stop combustion.
8. A carbon particle processing apparatus, comprising:
the working condition determining module is used for acquiring the current operating working condition of the vehicle after determining that carbon particle treatment is required based on the carbon loading in the particle trap of the vehicle;
the rotating speed determining module is used for determining the target rotating speed of the engine of the vehicle based on the current operating parameters of the vehicle if the current operating working condition is the target working condition; the target working condition comprises running operation, the current vehicle speed of the vehicle is less than a preset vehicle speed, and the current operation parameters comprise the current vehicle speed; or the target working condition comprises hoisting operation, and the current operating parameter comprises the current output torque of the engine;
the regeneration processing module is used for adjusting the current original rotating speed of the engine to the target rotating speed under the current operating working condition so that the exhaust temperature in the post-processing of the vehicle reaches the fuel ignition temperature;
the regeneration processing module is further configured to control aftertreatment fuel injection to actively regenerate the particulate trap based on heat from fuel combustion.
9. An electronic device, comprising: a processor and a memory;
wherein the memory has stored program code which, when executed by the processor, causes the processor to carry out the method for treating carbon particles in a particle trap as claimed in any one of claims 1 to 7.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out a method for treating carbon particles in a particle trap as claimed in any one of claims 1 to 7.
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| CN115095439B (en) * | 2022-07-25 | 2024-05-31 | 湖南道依茨动力有限公司 | Engine, control method and device thereof, and readable storage medium |
| CN115324756B (en) * | 2022-08-07 | 2024-02-20 | 潍柴动力股份有限公司 | Driving active regeneration method and device and electronic equipment |
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| EP2066893B1 (en) * | 2006-09-15 | 2014-06-11 | Volvo Lastvagnar AB | Limiting transmission function while in regeneration mode for a diesel particulate filter |
| CN208057194U (en) * | 2018-02-23 | 2018-11-06 | 潍柴动力股份有限公司 | A kind of DPF initiative regenerations combustion-supporting system and diesel engine |
| CN110848010B (en) * | 2019-11-29 | 2020-11-20 | 潍柴动力股份有限公司 | Exhaust temperature control system and control method |
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