CN113606023B - Particle catcher running-in method, device, computer equipment and storage medium - Google Patents
Particle catcher running-in method, device, computer equipment and storage medium Download PDFInfo
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- CN113606023B CN113606023B CN202110977195.5A CN202110977195A CN113606023B CN 113606023 B CN113606023 B CN 113606023B CN 202110977195 A CN202110977195 A CN 202110977195A CN 113606023 B CN113606023 B CN 113606023B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B79/00—Running-in of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1404—Exhaust gas temperature
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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
Abstract
The application relates to a particle trap break-in method, apparatus, computer device and storage medium. The method comprises the following steps: controlling an electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of a particle catcher of the vehicle to reach a preset temperature range and last for a first preset time; the control electronic control unit works according to the second data, operates the vehicle, and controls the vehicle to run at an idle speed after the first particle filling; the control electronic control unit works according to the first data, operates the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the second particle filling; and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time. By adopting the method, the full running-in of the particle catcher can be ensured, and the running-in efficiency of the particle catcher can be improved.
Description
Technical Field
The present application relates to the field of automotive exhaust technologies, and in particular, to a method and an apparatus for running-in a particle trap, a computer device, and a storage medium.
Background
Since the ministry of ecological environment and the State market supervision and administration headquarter jointly release the emission limits of pollutants for heavy-duty diesel vehicles GB 17691-2018 and the measurement method (sixth stage of China), the emission regulation of national VI has stricter requirements on the emission of particles in tail gas than the emission regulation of national V, the limit of weight (PM) of fine particles is increased by 33%, and meanwhile, the limit of number (PN) of fine particles is newly increased.
Most commercial automotive vehicles plants have particulate traps (DPFs) disposed in the exhaust aftertreatment system to meet regulations. The DPF, which forces the exhaust flow through the porous walls to adsorb particulate matter in the exhaust, can effectively reduce PM and PN in the exhaust. After the particulates in the DPF are accumulated to a certain degree, regeneration is needed to empty the particulates, otherwise the DPF can be blocked, the fuel consumption of the whole vehicle is increased, and even the exhaust back pressure is too large to extinguish the vehicle.
The engineer development phase requires frequent weighing of the DPF to determine the mass of adsorbed particulate matter within the DPF in order to determine the appropriate regeneration interval for the DPF. A large amount of impurities exist in the new DPF, the DPF needs to be fully worn in, and the accurate regeneration interval can be obtained only by measuring the reference mass of no diesel particulate matter in the DPF.
In the existing method for running-in of the DPF with a new vehicle, the running-in of the DPF is insufficient, so that the measured reference mass error is large, the determined regeneration interval is wrong, and a large amount of fuel oil, labor cost and time cost are wasted.
Disclosure of Invention
In view of the above, it is desirable to provide a particle trap running-in method, device, computer device and storage medium capable of ensuring sufficient running-in of the particle trap and improving the running-in efficiency of the particle trap.
A particle trap break-in method, the method comprising:
controlling an electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of a particle catcher of the vehicle to reach a preset temperature range and last for a first preset time;
the control electronic control unit works according to the second data, operates the vehicle to carry out first particle filling on a particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the first particle filling is carried out;
the control electronic control unit works according to the first data, operates the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carries out secondary particle filling on the particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the secondary particle filling is carried out;
and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
In one embodiment, the controlling the electronic control unit to operate according to the first data, keeping the vehicle speed of the vehicle at 0, and enabling the front end exhaust temperature of the particle catcher of the vehicle to reach the preset temperature range for a first preset time period, further comprises:
and starting the vehicle, keeping the vehicle speed at 0, and enabling the engine speed of the vehicle to reach a maximum value until the engine coolant temperature of the vehicle exceeds a preset coolant temperature.
In one embodiment, the controlling the electronic control unit to operate according to the first data, after keeping the vehicle speed of the vehicle at 0 and making the front end exhaust temperature of the particle catcher of the vehicle reach the preset temperature range for a first preset time period, the controlling the electronic control unit further comprises:
and controlling the vehicle to run at an idle speed until the front end exhaust temperature of a particle catcher of the vehicle is lower than a first front end exhaust temperature threshold, and controlling the electronic control unit to work according to second data.
In one embodiment, the electronic control unit is controlled to operate the vehicle in accordance with the second data to perform a first particle fill of a particle trap of the vehicle, and after performing the first particle fill, to control the vehicle to idle, comprising:
controlling the electronic control unit to operate according to second data, wherein the excess air factor of the vehicle is not greater than 1;
controlling the speed of the vehicle to accelerate to reach a preset speed, and keeping the preset speed for a third preset time;
controlling the vehicle to run at an idle speed, or controlling the engine speed of the vehicle to be reduced to 0.
In one embodiment, the controlling electronic control unit, operating the vehicle in accordance with the first data to perform a second particle fill of the particle trap of the vehicle based on a front end exhaust temperature of the particle trap of the vehicle, and controlling the vehicle to idle after performing the second particle fill, comprises:
the control electronic control unit acquires the front end exhaust temperature of the particle catcher of the vehicle after working according to the first data;
if the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold, controlling the vehicle to run in an accelerated manner until the front end exhaust temperature of the particle catcher of the vehicle is increased to a first front end exhaust temperature threshold, wherein the first front end exhaust temperature threshold is greater than the second front end exhaust temperature threshold;
controlling the vehicle to stop accelerating and idling until the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold;
according to the front-end exhaust temperature of a particle catcher of the vehicle, the vehicle is controlled to run at an accelerated speed and an idling speed in a circulating mode, and after a preset circulating condition is achieved, the vehicle is controlled to run at the idling speed.
In one embodiment, the first particle fill is larger in particle size than the second particle fill.
In one embodiment, the method further comprises:
acquiring a reference mass of a particle trap of the vehicle, and acquiring a regeneration interval according to the reference mass of the particle trap of the vehicle; the reference mass refers to the mass of the particle trap when no diesel particles are present in the particle trap.
A particle trap break-in apparatus, the apparatus comprising:
the regeneration impurity removal module is used for controlling the electronic control unit to work according to the first data, keeping the vehicle speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a first preset time;
the large particle filling module is used for controlling the electronic control unit to work according to the second data, operating the vehicle so as to carry out primary particle filling on a particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the primary particle filling is carried out;
the small particle filling module is used for controlling the electronic control unit to work according to the first data, operating the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carrying out secondary particle filling on the particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the secondary particle filling is carried out;
and the regeneration particle removal module is used for controlling the electronic control unit to work according to the first data, keeping the vehicle speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
controlling an electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of a particle catcher of the vehicle to reach a preset temperature range and last for a first preset time;
the control electronic control unit works according to the second data, operates the vehicle to carry out first particle filling on a particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the first particle filling is carried out;
the control electronic control unit works according to the first data, operates the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carries out secondary particle filling on the particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the secondary particle filling is carried out;
and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
controlling an electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of a particle catcher of the vehicle to reach a preset temperature range and last for a first preset time;
the control electronic control unit works according to the second data, operates the vehicle to carry out first particle filling on a particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the first particle filling is carried out;
the control electronic control unit works according to the first data, operates the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carries out secondary particle filling on the particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the secondary particle filling is carried out;
and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
According to the particle catcher running-in method, the particle catcher running-in device, the computer equipment and the storage medium, the electronic control unit is controlled to work according to the first data, the speed of the vehicle is kept to be 0, and the front end exhaust temperature of the particle catcher of the vehicle reaches the preset temperature range and lasts for the first preset time; the control electronic control unit works according to the second data, operates the vehicle to carry out first particle filling on a particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the first particle filling is carried out; the control electronic control unit works according to the first data, operates the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carries out secondary particle filling on the particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the secondary particle filling is carried out; and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time. Impurities are removed through activation and regeneration, then large particles and small particles are filled in sequence, and finally the particles are removed through activation and regeneration again, so that the full running-in of the particle catcher can be ensured, and the running-in efficiency of the particle catcher can be improved.
Drawings
FIG. 1 is a schematic flow chart of a particle trap break-in method in one embodiment;
FIG. 2 is a schematic flow diagram of large particle packing in one embodiment;
FIG. 3 is a schematic flow diagram of small particle filling in one embodiment;
FIG. 4 is a schematic flow chart of a particle trap break-in method in another embodiment;
FIG. 5 is a block diagram of the particle trap break-in apparatus in one embodiment;
FIG. 6 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in FIG. 1, a particle trap break-in method is provided, which is exemplified by the method applied to an exhaust system of a vehicle, it being understood that the method can also be applied to an active regeneration system of a particle trap, and can also be applied to a control system of a whole vehicle including the exhaust system of a vehicle and the active regeneration system of a particle trap, and is implemented by the interaction of the exhaust system of the vehicle and the active regeneration system of the particle trap. In this embodiment, the method includes the steps of:
and 102, controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a first preset time.
Electronic Control unit ecu (electronic Control unit), also called "traveling computer", "vehicle-mounted computer", and the like, refer to a Control device composed of integrated circuits and used for implementing a series of functions such as analyzing, processing and sending data, and the like, and is widely applied to automobiles, and the integration level is higher and higher. A Particulate trap dpf (diesel Particulate filter) is a ceramic filter installed in the exhaust system of diesel engines, which traps Particulate emissions before they enter the atmosphere; the trapped particulate emissions are subsequently burned off during vehicle operation. The basic working principle is as follows: for example, the diesel particulate filter is sprayed with metal platinum, rhodium and palladium, black smoke containing carbon particles discharged by a diesel engine enters an engine tail gas particulate trap through a special pipeline, and the carbon smoke particles are adsorbed on a filter made of metal fiber felt through a bag filter densely arranged in the engine tail gas particulate trap; when the adsorption amount of the particles reaches a certain degree, the burner at the tail end automatically ignites and burns the carbon smoke particles adsorbed on the burner, and the carbon smoke particles are changed into carbon dioxide harmless to human bodies and discharged.
Specifically, the control electronic control unit works according to the first data, the speed of the vehicle is kept to be 0, the vehicle is kept in place, the rotating speed of the engine is increased to the maximum, and the front-end exhaust temperature of the particle catcher of the vehicle reaches a preset temperature range and lasts for a first preset time. The first data may be initial data of the electronic control unit when the vehicle leaves the factory, the preset temperature range may be set to 500 ℃ -620 ℃ (celsius), and the first preset duration may be set to 20min (minutes). During the regeneration process of the diesel engine particle catcher, proper heat management measures are needed to raise the front-end exhaust temperature of the particle catcher to more than 500 ℃, and meanwhile, in order to ensure the regeneration efficiency, the higher front-end exhaust temperature needs to be maintained for a longer period of time. This step is to activate the regeneration function of the vehicle particulate trap, burn off the contaminants in the particulate trap, and ensure that the particulate trap is able to adequately adsorb soot in steps 104 and 106.
And 104, controlling the electronic control unit to work according to the second data, operating the vehicle to perform first particle filling on a particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the first particle filling is performed.
The idling refers to that the engine runs under the condition of no load, and only the frictional resistance of internal parts of the engine is needed to be overcome, and the engine does not output power. The lowest speed at which stable operation of the engine is maintained is called idle speed, and is one of five basic operating conditions of the engine.
Specifically, the electronic control unit is controlled to work according to the second data, and the excess air coefficient of the vehicle is set to be not more than 1; then controlling the vehicle speed to accelerate to reach a preset vehicle speed, keeping the preset vehicle speed, and filling large particles in the particle catcher; and after the large particle filling is finished, controlling the vehicle to run at an idle speed. The second data may be a calibrated set of data by which the range restriction can be modified such that the amount of air actually admitted to the combustion chamber of the engine is less than the theoretical amount of air.
And 106, controlling the electronic control unit to work according to the first data, operating the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carrying out secondary particle filling on the particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the secondary particle filling.
Specifically, after the control electronic control unit works according to the first data, the front end exhaust temperature of the particle catcher of the vehicle is obtained; according to the front-end exhaust temperature of a particle catcher of the vehicle, the vehicle is controlled to run at an accelerated speed and an idle speed in a circulating mode, the particle catcher is filled with small particles, and after a preset circulating condition is achieved, the small particle filling is finished, and the vehicle is controlled to run at the idle speed.
And step 108, controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
Specifically, the electronic control unit is controlled to work according to the first data, the speed of the vehicle is kept to be 0, the vehicle is kept in place, the rotating speed of the engine is increased to the maximum, and the front-end exhaust temperature of the particle catcher of the vehicle reaches a preset temperature range and lasts for a second preset time. The first data may be initial data of an electronic control unit when the vehicle leaves a factory, the preset temperature range may be set to 500 ℃ -620 ℃ (centigrade), the second preset duration may be set to 20min (minutes), and the second preset duration and the first preset duration may also be different. During the regeneration process of the particle catcher of the diesel engine, proper heat management measures are needed to raise the front-end exhaust temperature of the particle catcher to be more than 500 ℃, and meanwhile, in order to ensure the regeneration efficiency, the higher front-end exhaust temperature needs to be maintained for a longer period of time. This step is to activate the regeneration function of the vehicle particle trap to remove the adsorbed large and small particles from the particle trap, thereby completing the break-in process of the particle trap.
In the particle catcher running-in method, the electronic control unit is controlled to work according to the first data, the speed of the vehicle is kept to be 0, and the front end exhaust temperature of the particle catcher of the vehicle reaches a preset temperature range and lasts for a first preset time; the control electronic control unit works according to the second data, operates the vehicle to carry out first particle filling on a particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the first particle filling is carried out; the control electronic control unit works according to the first data, operates the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carries out secondary particle filling on the particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the secondary particle filling is carried out; and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time. Impurities are removed through activation and regeneration, then large particles and small particles are filled in sequence, and finally the particles are removed through activation and regeneration again, so that the full running-in of the particle catcher can be ensured, and the running-in efficiency of the particle catcher can be improved.
In one embodiment, the controlling the electronic control unit to operate according to the first data, keeping the vehicle speed of the vehicle at 0, and enabling the front end exhaust temperature of the particle catcher of the vehicle to reach the preset temperature range for a first preset time period, further comprises: and starting the vehicle, keeping the vehicle speed at 0, and enabling the engine speed of the vehicle to reach a maximum value until the engine coolant temperature of the vehicle exceeds a preset coolant temperature.
Specifically, the vehicle is started, the vehicle speed is kept at 0, the engine speed of the vehicle is enabled to reach the maximum value until the engine coolant temperature of the vehicle exceeds the preset coolant temperature, the vehicle is enabled to meet the regeneration condition, and then the steps are executed to enable the front end exhaust temperature of the particle catcher of the vehicle to reach the preset temperature range and last for a first preset time. The preset coolant temperature may be set to 70 ℃.
In one embodiment, the controlling the electronic control unit to operate according to the first data, after keeping the vehicle speed of the vehicle at 0 and making the front end exhaust temperature of the particle catcher of the vehicle reach the preset temperature range for a first preset time period, further comprises: and controlling the vehicle to run at an idle speed until the front end exhaust temperature of a particle catcher of the vehicle is lower than a first front end exhaust temperature threshold, and controlling the electronic control unit to work according to the second data.
Specifically, after removing the impurities in the particle trap through step 102, the vehicle is controlled to run at an idle speed until the front end exhaust temperature of the particle trap of the vehicle is lower than a first front end exhaust temperature threshold value, and the electronic control unit is controlled to operate according to the second data, and step 104 is executed. The first front end exhaust temperature threshold may be set at 250 ℃.
In one embodiment, as shown in fig. 2, the control electronic control unit operates the vehicle in accordance with the second data to perform a first particle fill of a particle trap of the vehicle, and controls the vehicle to idle after performing the first particle fill, including:
and 202, controlling the electronic control unit to work according to second data, wherein the excess air coefficient of the vehicle is not more than 1.
Specifically, a calibration tool is connected with an electronic control unit of the vehicle quantity, relevant parameters are changed according to second data, the excess air coefficient of the vehicle is changed to be not more than 1, and therefore the limit of the smoke intensity of the vehicle is changed, and the air quantity actually entering a combustion chamber of the engine is smaller than the theoretical air quantity.
And 204, controlling the vehicle speed of the vehicle to accelerate to reach a preset vehicle speed, and keeping the preset vehicle speed for a third preset time.
Specifically, the full-load acceleration of the vehicle is controlled to reach the preset vehicle speed, the vehicle is kept running at a constant speed, and the third preset time is kept. The preset vehicle speed may be set to any value of 70-90km/h (kilometers per hour), and the third preset time period may be set to 5 min.
And step 206, controlling the vehicle to run at an idle speed, or controlling the engine speed of the vehicle to be reduced to 0.
Specifically, after the preset vehicle speed is maintained for the third preset time period, the vehicle is controlled to decelerate to the idle speed, and the idle speed operation is maintained, or the engine speed of the vehicle may be directly controlled to decrease to 0, and the idle speed operation is maintained to facilitate the step 106 to be continuously executed.
In this embodiment, the electronic control unit is controlled to operate according to second data, wherein the excess air factor of the vehicle is not greater than 1; controlling the speed of the vehicle to accelerate to reach a preset speed, and keeping the preset speed for a third preset time; controlling the vehicle to run at an idle speed, or controlling the engine speed of the vehicle to be reduced to 0. The particle catcher is fully ground and the grinding efficiency of the particle catcher is improved by filling large particles and then activating and regenerating to remove the particles.
In one embodiment, the controlling electronic control unit, operating the vehicle in accordance with the first data to perform a second particle fill of the particle trap of the vehicle based on a front end exhaust temperature of the particle trap of the vehicle, and controlling the vehicle to idle after performing the second particle fill, comprises:
and step 302, after the control electronic control unit works according to the first data, acquiring the front end exhaust temperature of the particle catcher of the vehicle.
Specifically, a calibration tool is connected with an electronic control unit of the vehicle quantity, relevant parameters are changed according to first data, the electronic control unit is controlled to work according to the first data, and the front end exhaust temperature of a particle catcher of the vehicle is continuously monitored.
And 304, if the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold, controlling the vehicle to run in an accelerating mode until the front end exhaust temperature of the particle catcher of the vehicle is increased to a first front end exhaust temperature threshold, wherein the first front end exhaust temperature threshold is larger than the second front end exhaust temperature threshold.
Specifically, if the front end exhaust temperature of the particle trap of the vehicle is reduced to the second front end exhaust temperature threshold, the vehicle is controlled to run at an accelerated speed, and the front end exhaust temperature of the particle trap is increased until the front end exhaust temperature of the particle trap of the vehicle is increased to the first front end exhaust temperature threshold. The first front end exhaust temperature threshold may be greater than the second front end exhaust temperature threshold, the first front end exhaust temperature threshold may be set to 250 ℃, and the second front end exhaust temperature threshold may be set to 150 ℃.
And step 306, controlling the vehicle to stop accelerating and enable the vehicle to run at an idle speed until the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold value.
Specifically, the vehicle is controlled to stop accelerating, so that the vehicle is decelerated to idle running in a sliding mode, and the front end exhaust temperature of the particle catcher of the vehicle is lowered until the front end exhaust temperature of the particle catcher of the vehicle is lowered to a second front end exhaust temperature threshold value. The second front end exhaust temperature threshold may be set at 150 ℃.
And 308, circularly controlling the vehicle to run at an accelerated speed and an idle speed according to the front-end exhaust temperature of the particle catcher of the vehicle, and controlling the vehicle to run at the idle speed after a preset circulating condition is achieved.
Specifically, the front end exhaust temperature of the particulate trap of the vehicle is continuously monitored, the acceleration operation in step 304 and the idle operation in step 306 are cycled, and after the preset cycling condition is reached, the vehicle is controlled to decelerate to the idle operation. The preset circulation condition may be set to a number of times, for example, if the preset circulation condition is 30 times, the vehicle is controlled to run at an idle speed after 30 times of the circulation acceleration operation and the idle speed operation.
In the embodiment, the front-end exhaust temperature of the particle trap of the vehicle is acquired after the electronic control unit is controlled to work according to the first data; if the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold, controlling the vehicle to run in an accelerated manner until the front end exhaust temperature of the particle catcher of the vehicle is increased to a first front end exhaust temperature threshold, wherein the first front end exhaust temperature threshold is greater than the second front end exhaust temperature threshold; controlling the vehicle to stop accelerating and enable the vehicle to run at an idle speed until the front end exhaust temperature of a particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold value; according to the front-end exhaust temperature of a particle catcher of the vehicle, the vehicle is controlled to run at an accelerated speed and an idling speed in a circulating mode, and after a preset circulating condition is achieved, the vehicle is controlled to run at the idling speed. By filling small particles and then activating regeneration to remove the particles, the particle trap can be ensured to run in fully and the running-in efficiency of the particle trap can be improved.
In one embodiment, the first particle fill is larger in particle size than the second particle fill.
Specifically, the first particle filling is performed under the condition that the control electronic control unit works according to the second data, and is used for performing large particle filling; the second particle filling is carried out under the control of the electronic control unit according to the first data, and is used for carrying out small particle filling, and the small particle filling process is closer to the process of generating particles when the vehicle is in normal use.
In one embodiment, the method further comprises: acquiring a reference mass of a particle trap of the vehicle, and acquiring a regeneration interval according to the reference mass of the particle trap of the vehicle; the reference mass refers to the mass of the particle trap when no diesel particles are present in the particle trap.
Specifically, after step 106 is performed, the mass of the particle trap of the vehicle is measured as a reference mass, which is relatively accurate, and the most appropriate regeneration interval can be determined based on the reference mass.
In one embodiment, as shown in fig. 4, a method for running-in a particulate trap, for example, an exhaust system of a vehicle including a DPF of the particulate trap, specifically includes:
It should be understood that although the various steps in the flow charts of fig. 1-4 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-4 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.
In one embodiment, as shown in fig. 5, there is provided a particle trap break-in apparatus 500 comprising: a regeneration decontamination module 501, a large particle packing module 502, a small particle packing module 503, and a regeneration decontamination module 504, wherein:
and the regeneration impurity removal module 501 is used for controlling the electronic control unit to work according to the first data, keeping the vehicle speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a first preset time.
And a large particle filling module 502 for controlling the electronic control unit to operate the vehicle according to the second data to perform a first particle filling on the particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the first particle filling.
A small particle filling module 503, configured to control the electronic control unit to operate according to the first data, operate the vehicle according to a front end exhaust temperature of a particle trap of the vehicle, perform a second particle filling on the particle trap of the vehicle, and control the vehicle to run at an idle speed after performing the second particle filling; the first particle fill has a larger particle size than the second particle fill.
And the regeneration particle removal module 504 is used for controlling the electronic control unit to work according to the first data, keeping the vehicle speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
In one embodiment, the regeneration decontamination module 501 is further configured to start the vehicle, maintain the vehicle speed at 0, and maximize the engine speed of the vehicle until the engine coolant temperature of the vehicle exceeds a predetermined coolant temperature.
In one embodiment, the regeneration decontamination module 501 is further configured to control the vehicle to idle until a front end exhaust temperature of a particle trap of the vehicle is below a first front end exhaust temperature threshold, the control electronics being configured to operate in accordance with the second data.
In one embodiment, the large particle filling module 502 includes:
and the smoke degree setting submodule is used for controlling the electronic control unit to work according to second data, wherein the excess air coefficient of the vehicle is not more than 1.
And the acceleration control submodule is used for controlling the vehicle speed of the vehicle to accelerate to reach the preset vehicle speed and keeping the preset vehicle speed for a third preset time.
And the idle speed control submodule is used for controlling the vehicle to run at an idle speed or controlling the rotating speed of the engine of the vehicle to be reduced to 0.
In one embodiment, the small particle filling module 503 includes:
and the temperature monitoring submodule is used for controlling the electronic control unit to work according to the first data and then acquiring the front-end exhaust temperature of the particle catcher of the vehicle.
And the acceleration control submodule is used for controlling the vehicle to run in an acceleration mode until the front end exhaust temperature of the particle catcher of the vehicle is increased to a first front end exhaust temperature threshold value, and the first front end exhaust temperature threshold value is larger than a second front end exhaust temperature threshold value if the front end exhaust temperature of the particle catcher of the vehicle is reduced to the second front end exhaust temperature threshold value.
And the idle speed control submodule is used for controlling the vehicle to stop accelerating and enabling the vehicle to run at an idle speed until the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold value.
And the circulation control submodule is used for circularly controlling the vehicle to run at an accelerated speed and an idling speed according to the front-end exhaust temperature of the particle catcher of the vehicle, and controlling the vehicle to run at the idling speed after a preset circulation condition is reached.
In one embodiment, the apparatus further comprises:
a regeneration interval acquisition module for acquiring a reference mass of a particle trap of a vehicle and acquiring a regeneration interval according to the reference mass of the particle trap of the vehicle; the reference mass refers to the mass of the particle trap when no diesel particles are present in the particle trap.
For specific definitions of the particle trap break-in device, reference may be made to the above definitions of the particle trap break-in method, which are not further described here. The various modules in the particle trap break-in apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 6. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a particle trap break-in method. The display screen of the computer equipment can be a vehicle-mounted liquid crystal display screen or a display screen connected with a vehicle control system, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged in a vehicle cab, an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the configuration shown in fig. 6 is a block diagram of only a portion of the configuration associated with the present application, and is not intended to limit the computing device to which the present application may be applied, and that a particular computing device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
controlling an electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of a particle catcher of the vehicle to reach a preset temperature range and last for a first preset time;
the control electronic control unit works according to the second data, operates the vehicle to carry out first particle filling on a particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the first particle filling is carried out;
the control electronic control unit works according to the first data, operates the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carries out secondary particle filling on the particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the secondary particle filling is carried out;
and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
starting the vehicle, keeping the vehicle speed at 0, and enabling the engine speed of the vehicle to reach a maximum value until the engine coolant temperature of the vehicle exceeds a preset coolant temperature.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and controlling the vehicle to run at an idle speed until the front end exhaust temperature of a particle catcher of the vehicle is lower than a first front end exhaust temperature threshold, and controlling the electronic control unit to work according to second data.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
controlling the electronic control unit to operate according to second data, wherein the excess air factor of the vehicle is not greater than 1;
controlling the speed of the vehicle to accelerate to reach a preset speed, and keeping the preset speed for a third preset time;
controlling the vehicle to run at an idle speed, or controlling the engine speed of the vehicle to be reduced to 0.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
after the control electronic control unit works according to the first data, acquiring the front end exhaust temperature of a particle catcher of the vehicle;
if the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold, controlling the vehicle to run in an accelerated manner until the front end exhaust temperature of the particle catcher of the vehicle is increased to a first front end exhaust temperature threshold, wherein the first front end exhaust temperature threshold is greater than the second front end exhaust temperature threshold;
controlling the vehicle to stop accelerating and idling until the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold;
according to the front-end exhaust temperature of a particle catcher of the vehicle, the vehicle is controlled to run at an accelerated speed and an idling speed in a circulating mode, and after a preset circulating condition is achieved, the vehicle is controlled to run at the idling speed.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
the first particle fill has a larger particle size than the second particle fill.
In one embodiment, the processor when executing the computer program further performs the steps of:
acquiring a reference mass of a particle trap of the vehicle, and acquiring a regeneration interval according to the reference mass of the particle trap of the vehicle; the reference mass refers to the mass of the particle trap when no diesel particles are present in the particle trap.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, performs the steps of:
controlling an electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of a particle catcher of the vehicle to reach a preset temperature range and last for a first preset time;
the control electronic control unit works according to the second data, operates the vehicle to carry out first particle filling on a particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the first particle filling is carried out;
the control electronic control unit works according to the first data, operates the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carries out secondary particle filling on the particle catcher of the vehicle, and controls the vehicle to run at an idle speed after the secondary particle filling is carried out;
and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and starting the vehicle, keeping the vehicle speed at 0, and enabling the engine speed of the vehicle to reach a maximum value until the engine coolant temperature of the vehicle exceeds a preset coolant temperature.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and controlling the vehicle to run at an idle speed until the front end exhaust temperature of a particle catcher of the vehicle is lower than a first front end exhaust temperature threshold, and controlling the electronic control unit to work according to second data.
In one embodiment, the computer program when executed by the processor further performs the steps of:
controlling the electronic control unit to operate according to second data, wherein the excess air factor of the vehicle is not greater than 1;
controlling the vehicle speed of the vehicle to accelerate to reach a preset vehicle speed, and keeping the preset vehicle speed for a third preset time;
controlling the vehicle to run at an idle speed, or controlling the engine speed of the vehicle to be reduced to 0.
In one embodiment, the computer program when executed by the processor further performs the steps of:
after the control electronic control unit works according to the first data, acquiring the front end exhaust temperature of a particle catcher of the vehicle;
if the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold, controlling the vehicle to run in an accelerated manner until the front end exhaust temperature of the particle catcher of the vehicle is increased to a first front end exhaust temperature threshold, wherein the first front end exhaust temperature threshold is greater than the second front end exhaust temperature threshold;
controlling the vehicle to stop accelerating and enable the vehicle to run at an idle speed until the front end exhaust temperature of a particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold value;
according to the front-end exhaust temperature of a particle catcher of the vehicle, the vehicle is controlled to run at an accelerated speed and an idling speed in a circulating mode, and after a preset circulating condition is achieved, the vehicle is controlled to run at the idling speed.
In one embodiment, the computer program when executed by the processor further performs the steps of:
the first particle fill has a larger particle size than the second particle fill.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring a reference mass of a particle trap of the vehicle, and acquiring a regeneration interval according to the reference mass of the particle trap of the vehicle; the reference mass refers to the mass of the particle trap when no diesel particles are present in the particle trap.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A particle trap break-in method, comprising:
controlling an electronic control unit to work according to first data, keeping the speed of a vehicle to be 0, and enabling the front-end exhaust temperature of a particle catcher of the vehicle to reach a preset temperature range and last for a first preset time;
controlling the electronic control unit to work according to second data, operating the vehicle to perform first particle filling on a particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the first particle filling is performed;
controlling the electronic control unit to work according to first data, operating the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, performing second particle filling on the particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the second particle filling is performed;
and controlling the electronic control unit to work according to the first data, keeping the speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
2. The method of claim 1, wherein the controlling electronic control unit operates in accordance with the first data to maintain a vehicle speed of 0 to bring a front end exhaust temperature of a particle trap of the vehicle to a preset temperature range for a first preset duration, and further comprising:
starting the vehicle, keeping the vehicle speed at 0, and enabling the engine speed of the vehicle to reach a maximum value until the temperature of engine coolant of the vehicle exceeds a preset coolant temperature.
3. The method of claim 1, wherein the controlling the electronic control unit to operate in accordance with the first data to maintain the vehicle at a speed of 0 to bring the front end exhaust temperature of the particle trap of the vehicle to a preset temperature range for a first preset duration, further comprises:
and controlling the vehicle to run at an idle speed until the front end exhaust temperature of a particle catcher of the vehicle is lower than a first front end exhaust temperature threshold, and controlling the electronic control unit to work according to second data.
4. The method of claim 1, wherein said controlling said electronic control unit to operate said vehicle in accordance with said second data to perform a first particle fill of a particle trap of said vehicle, and after performing said first particle fill, controlling said vehicle to idle, comprises:
controlling the electronic control unit to operate according to second data, wherein the excess air factor of the vehicle is not greater than 1;
controlling the speed of the vehicle to accelerate to reach a preset speed, and keeping the preset speed for a third preset time;
and controlling the vehicle to run at an idle speed, or controlling the engine speed of the vehicle to be reduced to 0.
5. The method of claim 1, wherein said controlling said electronic control unit to operate said vehicle in accordance with first data based on a front end exhaust temperature of a particle trap of said vehicle to perform a second particle fill of said vehicle's particle trap, and after performing said second particle fill, controlling said vehicle to idle, comprises:
controlling the electronic control unit to work according to the first data and then acquiring the front end exhaust temperature of the particle catcher of the vehicle;
if the front end exhaust temperature of the particle catcher of the vehicle is reduced to a second front end exhaust temperature threshold, controlling the vehicle to run in an accelerated mode until the front end exhaust temperature of the particle catcher of the vehicle is increased to a first front end exhaust temperature threshold, wherein the first front end exhaust temperature threshold is larger than the second front end exhaust temperature threshold;
controlling the vehicle to stop accelerating and idle the vehicle until a front end exhaust temperature of a particle trap of the vehicle decreases to the second front end exhaust temperature threshold;
and circularly controlling the vehicle to run at an accelerated speed and an idle speed according to the front-end exhaust temperature of the particle catcher of the vehicle, and controlling the vehicle to run at the idle speed after a preset circulating condition is reached.
6. The method of claim 1, wherein the first particle fill has a particle size greater than the second particle fill.
7. The method of claim 1, further comprising:
acquiring a reference mass of a particle trap of the vehicle, and acquiring a regeneration interval according to the reference mass of the particle trap of the vehicle; the reference mass refers to the mass of the particle trap when no diesel particles are present in the particle trap.
8. A particle trap running-in apparatus, the apparatus comprising:
the regeneration impurity removal module is used for controlling the electronic control unit to work according to the first data, keeping the vehicle speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a first preset time;
the large particle filling module is used for controlling the electronic control unit to work according to second data, operating the vehicle so as to carry out primary particle filling on a particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the primary particle filling is carried out;
the small particle filling module is used for controlling the electronic control unit to work according to first data, operating the vehicle according to the front end exhaust temperature of the particle catcher of the vehicle, carrying out secondary particle filling on the particle catcher of the vehicle, and controlling the vehicle to run at an idle speed after the secondary particle filling is carried out;
and the regeneration particle removal module is used for controlling the electronic control unit to work according to the first data, keeping the vehicle speed of the vehicle to be 0, and enabling the front-end exhaust temperature of the particle catcher of the vehicle to reach a preset temperature range and last for a second preset time.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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