CN116146306B - Vehicle oil-gas separation control method, device, computer equipment and storage medium - Google Patents
Vehicle oil-gas separation control method, device, computer equipment and storage medium Download PDFInfo
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- CN116146306B CN116146306B CN202310286252.4A CN202310286252A CN116146306B CN 116146306 B CN116146306 B CN 116146306B CN 202310286252 A CN202310286252 A CN 202310286252A CN 116146306 B CN116146306 B CN 116146306B
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- 238000000926 separation method Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000000446 fuel Substances 0.000 claims description 97
- 238000012360 testing method Methods 0.000 claims description 85
- 238000004590 computer program Methods 0.000 claims description 37
- 239000003921 oil Substances 0.000 claims description 28
- 238000012937 correction Methods 0.000 claims description 27
- 239000000295 fuel oil Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 189
- 230000001276 controlling effect Effects 0.000 description 26
- 238000010586 diagram Methods 0.000 description 9
- 238000004088 simulation Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The application relates to a vehicle oil-gas separation control method, a vehicle oil-gas separation control device, computer equipment and a storage medium. The method comprises the following steps: acquiring a real-time boundary condition of the vehicle, and determining a target rotating speed table lookup based on the real-time boundary condition; determining the motor speed of the motor in the target speed table according to the real-time engine speed and the real-time engine torque of the vehicle; and controlling the oil-gas separator to separate oil from gas according to the rotating speed of the motor. The method can improve the oil-gas separation efficiency.
Description
Technical Field
The present application relates to the field of oil-gas separation technologies, and in particular, to a vehicle oil-gas separation control method, a device, a computer device, and a storage medium.
Background
When a conventional internal combustion engine in a vehicle is operated, high-pressure combustible mixture in a combustion chamber leaks into a crankcase through a clearance portion between a piston group and a cylinder, and blow-by gas is caused. The components of the blowby gas mainly comprise gaseous fuel oil, unburned combustible mixed gas, water vapor, waste gas and the like, the blowby gas can dilute the fuel oil or emulsify the fuel oil, the service performance of the fuel oil is reduced, and the oxidative deterioration of the fuel oil is accelerated; blow-by gas also can cause the crankcase pressure to be too high, thereby compromising the tightness of the crankcase. To prevent excessive crankcase pressures and to extend fuel life, crankcase ventilation must be performed, and the gas-oil separator is a major component of the crankcase ventilation system. The oil-gas separator separates the fuel oil from the unburned combustible mixed gas, the separated fuel oil returns to the oil pan to play roles in lubrication and the like, and the combustible mixed gas is combusted again to generate power.
In the conventional art, oil-driven centrifugal oil-gas separators are used in many cases. However, the rotation speed of the oil-driven centrifugal oil-gas separator depends on the pressure of the fuel entering the oil-gas separator, so that not only is the oil pump required to have a large axial force, but also the rotation speed of the oil-driven centrifugal oil-gas separator is strongly related to the rotation speed of the engine.
Therefore, in the traditional technology, oil is used for driving the centrifugal oil-gas separator to perform oil-gas separation, the rotating speed of the oil-gas separator cannot be controlled, the service life of the oil-gas separator can be influenced, and the oil-gas separation efficiency is low.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a vehicle oil-gas separation control method, apparatus, computer device, and storage medium that can improve the oil-gas separation efficiency.
In a first aspect, the application provides a vehicle oil-gas separation control method, wherein an oil-gas separator of the vehicle comprises a motor. The method comprises the following steps:
Acquiring a real-time boundary condition of the vehicle, and determining a target rotating speed table lookup based on the real-time boundary condition;
Determining the motor speed of the motor in the target speed table according to the real-time engine speed and the real-time engine torque of the vehicle;
and controlling the oil-gas separator to separate oil from gas according to the rotating speed of the motor.
In one embodiment, the method further comprises:
Determining a target boundary condition, under the target boundary condition, acquiring crankcase blow-by gas of a test vehicle under a target working condition, and determining an initial motor rotating speed of the test motor based on the crankcase blow-by gas;
under the target working condition, controlling a test oil-gas separator in the test vehicle to perform oil-gas separation at the initial motor rotation speed, obtaining the content of fuel filtered out by an absolute filter element in a preset time period, and determining the target motor rotation speed based on the fuel content, wherein the absolute filter element is used for filtering the fuel in the test oil-gas separator;
And acquiring the engine speed and the engine torque of the test vehicle under the target working condition, and acquiring an initial speed lookup table by utilizing the target motor speed, the engine speed and the engine torque.
In one embodiment, the determining the target rotation speed table look-up based on the real-time boundary condition includes:
Under the condition that the real-time boundary condition is consistent with the target boundary condition, taking the initial rotation speed table as a target rotation speed table;
And under the condition that the real-time boundary condition is inconsistent with the target boundary condition, correcting the initial rotation speed table based on a correction coefficient, and taking the corrected rotation speed table as a target rotation speed table.
In one embodiment, the determining the target motor speed based on the fuel content includes:
under the condition that the fuel content is not greater than a preset fuel threshold, taking the initial motor rotating speed as a target motor rotating speed;
And under the target working condition, controlling the test oil-gas separator to perform oil-gas separation at the adjusted motor rotating speed until the fuel content is not greater than the preset fuel threshold, and taking the finally adjusted motor rotating speed as the target motor rotating speed.
In one embodiment, the determining manner of the correction coefficient includes:
Correcting the target boundary condition, re-acquiring crankcase blow-by of the test vehicle under the target working condition under the corrected target boundary condition, and determining the corrected target motor rotating speed based on the re-acquired crankcase blow-by;
and obtaining the correction coefficient based on the corrected target motor speed and the target motor speed.
In one embodiment, the parameters related to the real-time boundary condition include at least one of an ambient temperature, a fuel temperature, or an engine intake temperature of the vehicle.
In a second aspect, the application further provides a vehicle oil-gas separation control device, and the oil-gas separator of the vehicle comprises a motor. The device comprises:
The table lookup determining module is used for acquiring real-time boundary conditions of the vehicle and determining a target rotating speed table lookup based on the real-time boundary conditions;
the rotating speed determining module is used for determining the motor rotating speed of the motor in the target rotating speed table according to the real-time engine rotating speed and the real-time engine torque of the vehicle;
And the oil-gas separation module is used for controlling the oil-gas separator to perform oil-gas separation according to the rotating speed of the motor.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the steps of the method of any of the embodiments described above when the processor executes the computer program.
In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of any of the embodiments described above.
In a fifth aspect, the present application also provides a computer program product. The computer program product comprising a computer program which, when executed by a processor, implements the steps of the method of any of the embodiments described above.
According to the vehicle oil-gas separation control method, the device, the computer equipment and the storage medium, the oil-gas separator of the vehicle comprises the motor, the target rotation speed table is determined based on the real-time boundary condition by acquiring the real-time boundary condition of the vehicle, the motor rotation speed of the motor is determined in the target rotation speed table according to the real-time engine rotation speed and the real-time engine torque of the vehicle, and the oil-gas separator is controlled to perform oil-gas separation according to the motor rotation speed. Compared with the prior art that the efficiency of oil-gas separation caused by oil-gas separation is low due to the fact that the centrifugal oil-gas separator is driven by oil, the oil-gas separation is carried out by controlling the motor rotating speed of the motor in the oil-gas separator, the influence of the engine rotating speed can be avoided, the real-time working condition of the engine is determined according to the real-time engine rotating speed and the real-time engine torque of the vehicle, the motor rotating speed is determined, the motor rotating speed can be adjusted in real time, and the separation efficiency of oil-gas separation is guaranteed.
Drawings
FIG. 1 is an application scenario diagram of a vehicle oil-gas separation control method according to an embodiment;
FIG. 2 is a schematic flow chart of a vehicle oil-gas separation control method according to an embodiment of the present application;
FIG. 3 is a block diagram of an embodiment of a structure for providing an oil separator;
FIG. 4 is a flow chart illustrating a determination process of an initial rotational speed table in one embodiment;
FIG. 5 is a flow chart illustrating a method of determining correction coefficients in one embodiment;
FIG. 6 is a schematic diagram of an initial speed lookup table according to one embodiment;
FIG. 7 is a block diagram of a vehicle oil-gas separation control device according to an embodiment of the present application;
fig. 8 is an internal structural diagram of a computer device according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In this embodiment, a vehicle oil-gas separation control method is provided, where the method is applied to a computer device for illustration, it can be understood that the method may also be applied to a server, and may also be applied to a system including the computer device and the server, and implemented through interaction between the computer device and the server.
Before describing the vehicle oil-gas separation control method provided in this embodiment in detail, an application scenario of the vehicle oil-gas separation control method provided in this embodiment will be described by taking an example in which an air inlet of an oil-gas separator is disposed on a valve chamber cover, as shown in fig. 1. The dashed arrows in fig. 1 indicate the blow-by gas flow direction, and the solid arrows indicate the fuel flow direction. The high-pressure combustible mixed gas in the combustion chamber 1 in fig. 1 leaks into a space between the cylinder body crank case 2 and the oil pan 3 through a gap part between the piston group and the cylinder to form blowby gas, after the blowby gas gathers to a certain pressure, the blowby gas enters the valve chamber cover oil-gas separation labyrinth 6 through the cylinder body oil return passage 4 and the cylinder cover oil return passage 5, after the blowby gas is initially separated through the valve chamber cover oil-gas separation labyrinth 6, part of fuel returns to the oil pan 3 through the cylinder cover oil return passage 5 and the cylinder body oil return passage 4, the residual blowby gas enters the electric centrifugal oil-gas separator 7 through an air inlet arranged on the valve cover, the electric centrifugal oil-gas separator 7 carries out oil-gas separation on the residual blowby gas, the separated fuel returns to the oil pan 3 through an oil return pipeline which is communicated with an oil inlet of the oil pan 3 through the electric centrifugal oil-gas separator 7, the separated combustible gas enters the supercharger 8, and enters the combustion chamber 1 again through the supercharging through the intercooler 9, the air inlet manifold 10 and the air inlet 11. The application scenario of the vehicle oil-gas separation control method is only an example, the air inlet of the oil-gas separator can be directly arranged on the crankcase, the blowby gas is not subjected to initial separation by the valve chamber cover oil-gas separation labyrinth 6, the oil-gas separation can be realized by the electric centrifugal oil-gas separator 7, and the specific application scenario is not limited.
Fig. 2 is a schematic flow chart of a vehicle oil-gas separation control method provided in an embodiment of the present application, wherein an oil-gas separator of a vehicle includes a motor, and the method is applied to a computer device, and in one embodiment, as shown in fig. 2, the method includes the following steps:
s201, acquiring real-time boundary conditions of the vehicle, and determining a target rotating speed table lookup based on the real-time boundary conditions.
The real-time boundary condition is the set condition of the environment of the vehicle or the running condition of the vehicle. For example, the real-time boundary condition is that the engine intake air temperature of the vehicle is 50 degrees celsius. The target speed table is a MAP table containing engine speed, engine torque, and motor speed.
S202, determining the motor rotation speed of the motor in a target rotation speed table according to the real-time engine rotation speed and the real-time engine torque of the vehicle.
According to the real-time engine speed and the real-time engine torque, the real-time engine working condition of the vehicle is obtained, the blow-by amount under different engine working conditions is different, and the oil-gas separator is controlled by different motor speeds to perform oil-gas separation.
S203, controlling the oil-gas separator to separate oil from gas at the motor rotation speed.
Illustratively, a block diagram of the oil-gas separator is provided, as shown in fig. 3, in which 31 in fig. 3 represents the main structure of the oil-gas separator, 32 represents the mounting flange seat, 33 represents the oil outlet, the outlet for separated fuel oil, 34 represents the gas outlet, the outlet for separated combustible gas, 35 represents the mechanical pressure regulating valve, 36 represents the motor, 37 represents the harness interface, 38 represents the gas inlet, and the gas to be subjected to oil-gas separation is made to enter the oil-gas separator.
According to the vehicle oil-gas separation control method, the oil-gas separator of the vehicle comprises the motor, the target rotation speed table is determined based on the real-time boundary condition by acquiring the real-time boundary condition of the vehicle, the motor rotation speed of the motor is determined in the target rotation speed table according to the real-time engine rotation speed and the real-time engine torque of the vehicle, and the oil-gas separator is controlled to perform oil-gas separation according to the motor rotation speed. Compared with the prior art that oil-gas separation is carried out by using oil to drive a centrifugal oil-gas separator to cause low oil-gas separation efficiency, the embodiment carries out oil-gas separation by controlling the motor rotating speed of the motor in the oil-gas separator, can be free from the influence of the engine rotating speed, and determines the real-time working condition of the engine according to the real-time engine rotating speed and the real-time engine torque of the vehicle, so that the motor rotating speed is determined, the motor rotating speed can be regulated in real time, and the separation efficiency of oil-gas separation is ensured.
In one embodiment, the vehicle oil-gas separation control method further comprises a determining process of an initial rotational speed table, before the initial rotational speed table is determined, a simulation model of the test vehicle is built based on Computational Fluid Dynamics (CFD) simulation, the simulation model comprises a test oil-gas separator and a test motor in the test oil-gas separator, and the operation related parameters of the engine comprise, but are not limited to, engine rotational speed, engine torque, lubricating oil temperature, air inlet and outlet temperature, cooling liquid temperature, air inlet and outlet pressure, and a fuel pressure and combustion model. The flow chart of the determination process of the initial rotation speed table lookup table, as shown in fig. 4, includes the following contents:
S401, determining a target boundary condition, under the target boundary condition, acquiring crankcase blow-by of the test vehicle under the target working condition, and determining the initial motor rotating speed of the test motor based on the crankcase blow-by.
The target boundary condition is a set condition of the environment of the vehicle or the running condition of the vehicle, and the parameters related to the target boundary condition comprise at least one of the environment temperature, the fuel oil temperature or the engine air inlet temperature of the vehicle. The target conditions are the engine conditions of the artificially set vehicle, i.e. engine speed and engine torque. And obtaining the initial motor rotating speed of the test motor based on Computational Fluid Dynamics (CFD) simulation and crankcase blow-by.
S402, under a target working condition, controlling a test oil-gas separator in a test vehicle to perform oil-gas separation at an initial motor rotation speed, obtaining the content of fuel filtered out through an absolute filter element in a preset time period, and determining the target motor rotation speed based on the fuel content, wherein the absolute filter element is used for filtering the fuel in the test oil-gas separator.
The target motor rotating speed is the motor rotating speed which can better realize oil-gas separation aiming at the target working condition.
S403, acquiring the engine speed and the engine torque of the test vehicle under the target working condition, and acquiring an initial speed lookup table by utilizing the target motor speed, the engine speed and the engine torque.
The target working conditions may include more than one working condition, and the initial rotation speed table is a table for corresponding rotation speeds under various working conditions, namely, different engine speeds and different engine torques. The test vehicle is identical to the type of the vehicle to be subjected to the actual oil-gas separation.
In the embodiment, through a simulation test, corresponding initial motor rotation speeds are determined according to the blow-by amounts of the test vehicles under different engine working conditions, and under a target working condition, a test oil-gas separator in the test vehicles is controlled to conduct oil-gas separation at the initial motor rotation speeds, the initial motor rotation speeds are adjusted based on filtered fuel oil content, and the obtained initial rotation speed lookup table is high in accuracy so as to ensure the separation efficiency of the oil-gas separation.
In one embodiment, determining the target motor speed based on the fuel content includes:
Under the condition that the fuel content is not greater than a preset fuel threshold, taking the initial motor rotating speed as a target motor rotating speed;
and under the condition that the fuel content is greater than a preset fuel threshold, adjusting the initial motor rotating speed to obtain the adjusted motor rotating speed, and under the target working condition, controlling the test oil-gas separator to conduct oil-gas separation according to the adjusted motor rotating speed until the fuel content is not greater than the preset fuel threshold, and taking the finally adjusted motor rotating speed as the target motor rotating speed.
In some embodiments, the initial motor speed is adjusted by adding a preset value to the initial motor speed or subtracting a preset value from the initial motor speed, the preset value being set manually.
In this embodiment, the content of the fuel filtered out by the absolute filter element is not greater than the preset fuel threshold, which indicates that the oil-gas separation effect of the oil-gas separator is good, the content of the fuel left in the oil-gas separator is not great, and under the condition that the content of the fuel is greater than the preset fuel threshold, the rotation speed of the initial motor is continuously adjusted, and the finally adjusted rotation speed of the motor is used as the rotation speed of the target motor, so that the accuracy of the rotation speed of the target motor can be improved.
In one embodiment, determining the target speed look-up table based on the real-time boundary condition includes:
under the condition that the real-time boundary condition is consistent with the target boundary condition, taking the initial rotation speed table as a target rotation speed table;
And under the condition that the real-time boundary condition is inconsistent with the target boundary condition, correcting the initial rotation speed table based on the correction coefficient, and taking the corrected rotation speed table as the target rotation speed table.
The correction coefficient is used for correcting the target motor rotation speed in the initial rotation speed table, and the correction coefficient can be set manually.
It should be appreciated that the process of modifying the initial rotational speed table based on the modification factor may be performed at the stage of performing the simulation test, that is, adjusting the target boundary condition such that the real-time boundary condition coincides with the adjusted target boundary condition.
In this embodiment, the target rotational speed table is determined based on the real-time boundary condition, so that the rotational speed table can be adjusted in time under the condition that the real-time boundary condition is inconsistent with the target boundary condition, and the accuracy of the target rotational speed table is ensured.
In one embodiment, a flow chart of a manner of determining the correction coefficient, as shown in fig. 5, includes the following steps:
S501, correcting the target boundary condition, re-acquiring the crankcase blow-by of the test vehicle under the target working condition under the corrected target boundary condition, and determining the corrected target motor rotating speed based on the re-acquired crankcase blow-by.
The target boundary condition is modified to modify the target boundary condition based on the real-time boundary condition.
Taking the target boundary condition as an example that the engine air inlet temperature of the vehicle is 40 ℃, the real-time boundary condition is that the engine air inlet temperature of the vehicle is 50 ℃, and the corrected target boundary condition is that the engine air inlet temperature of the vehicle is 50 ℃.
And determining the corrected target motor rotating speed based on the re-acquired crankcase blowby amount, wherein the process of determining the corrected target motor rotating speed is consistent with the process of determining the initial motor rotating speed of the test motor based on the crankcase blowby amount, and under the target working condition, controlling a test oil-gas separator in the test vehicle to perform oil-gas separation at the initial motor rotating speed, acquiring the fuel content filtered out by an absolute filter element in a preset time period, and determining the target motor rotating speed based on the fuel content.
S502, obtaining a correction coefficient based on the corrected target motor speed and the target motor speed.
In some embodiments, the ratio between the corrected target motor speed and the target motor speed is used as the correction coefficient.
In this embodiment, the accuracy of the obtained correction coefficient is high based on the corrected target motor speed and the target motor speed.
In one embodiment, the parameters related to the real-time boundary condition include at least one of an ambient temperature at which the vehicle is located, a fuel temperature, or an engine intake temperature.
In this embodiment, the real-time boundary condition is set by at least one of the ambient temperature, the fuel temperature, or the engine intake temperature of the vehicle, and the real-time boundary condition can be used as a reference parameter to more conveniently determine different corresponding blow-by amounts under different engine working conditions.
The vehicle oil-gas separation control method provided by the application is described in a complete and specific embodiment. Firstly, constructing a simulation model of a test vehicle through Computational Fluid Dynamics (CFD) simulation, and acquiring an initial rotation speed table based on the simulation model. For example, a schematic diagram of an initial speed lookup table is provided, as shown in fig. 6, in which the horizontal axis in fig. 6 represents engine speed and the vertical axis represents engine torque. The "low rotation speed control region", the "medium rotation speed control region", and the "high rotation speed control region" in fig. 6 correspond to control regions of different motor rotation speeds, respectively.
Acquiring a crankcase blow-by amount of a test vehicle under a target working condition under a target boundary condition, and determining the initial motor rotating speed of the test motor based on the crankcase blow-by amount; under a target working condition, controlling a test oil-gas separator in a test vehicle to perform oil-gas separation at an initial motor speed, obtaining the content of fuel filtered out through an absolute filter element in a preset time period, taking the initial motor speed as a target motor speed under the condition that the fuel content is not more than a preset fuel threshold, adjusting the initial motor speed under the condition that the fuel content is more than the preset fuel threshold to obtain an adjusted motor speed, and controlling the test oil-gas separator to perform oil-gas separation at the adjusted motor speed under the target working condition until the fuel content is not more than the preset fuel threshold, and taking the finally adjusted motor speed as the target motor speed; and acquiring the engine speed and the engine torque of the test vehicle under the target working condition, and acquiring an initial speed table by utilizing the target motor speed, the engine speed and the engine torque.
Further, correcting the target boundary condition, re-acquiring crankcase blow-by of the test vehicle under the target working condition under the corrected target boundary condition, and determining the corrected target motor rotating speed based on the re-acquired crankcase blow-by; and obtaining a correction coefficient based on the corrected target motor speed and the target motor speed.
Acquiring a real-time boundary condition of the vehicle, taking the initial rotation speed table as a target rotation speed table when the real-time boundary condition is consistent with the target boundary condition, correcting the initial rotation speed table based on a correction coefficient when the real-time boundary condition is inconsistent with the target boundary condition, and taking the corrected rotation speed table as the target rotation speed table.
And determining the motor rotation speed of the motor in a target rotation speed table according to the real-time engine rotation speed and the real-time engine torque of the vehicle, and controlling the oil-gas separator to perform oil-gas separation according to the motor rotation speed.
According to the vehicle oil-gas separation control method, the motor rotating speed of the motor in the oil-gas separator is controlled to perform oil-gas separation, the influence of the engine rotating speed can be avoided, the real-time working condition of the engine is determined according to the real-time engine rotating speed and the real-time engine torque of the vehicle, the motor rotating speed is determined, the motor rotating speed can be adjusted in real time, and the separation efficiency of oil-gas separation is guaranteed.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a vehicle oil-gas separation control device for realizing the vehicle oil-gas separation control method. The implementation of the solution provided by the device is similar to that described in the above method, so the specific limitation in the embodiments of the vehicle oil-gas separation control device provided below may refer to the limitation of the vehicle oil-gas separation control method hereinabove, and will not be repeated herein.
Referring to fig. 7, fig. 7 is a block diagram of a vehicle oil-gas separation control device according to an embodiment of the present application, in which an oil-gas separator of a vehicle includes a motor, the device 700 includes: a look-up table determination module 701, a rotation speed determination module 702, and an oil-gas separation module 703, wherein:
The table lookup determining module 701 is configured to obtain a real-time boundary condition of the vehicle, and determine a target rotation speed table lookup based on the real-time boundary condition;
The rotation speed determining module 702 is configured to determine a motor rotation speed of the motor in a target rotation speed lookup table according to a real-time engine rotation speed and a real-time engine torque of the vehicle;
the oil-gas separation module 703 is used for controlling the oil-gas separator to perform oil-gas separation at the motor rotation speed.
According to the vehicle oil-gas separation control device, the motor is included in the oil-gas separator of the vehicle, the target rotation speed table is determined based on the real-time boundary condition by acquiring the real-time boundary condition of the vehicle, the motor rotation speed of the motor is determined in the target rotation speed table according to the real-time engine rotation speed and the real-time engine torque of the vehicle, and the oil-gas separator is controlled to perform oil-gas separation according to the motor rotation speed. Compared with the prior art that oil-gas separation is carried out by using oil to drive a centrifugal oil-gas separator to cause low oil-gas separation efficiency, the embodiment carries out oil-gas separation by controlling the motor rotating speed of the motor in the oil-gas separator, can be free from the influence of the engine rotating speed, and determines the real-time working condition of the engine according to the real-time engine rotating speed and the real-time engine torque of the vehicle, so that the motor rotating speed is determined, the motor rotating speed can be regulated in real time, and the separation efficiency of oil-gas separation is ensured.
Optionally, the apparatus 700 further includes:
The initial rotation speed determining module is used for determining a target boundary condition, acquiring crankcase blow-by amount of the test vehicle under a target working condition under the target boundary condition, and determining the initial motor rotation speed of the test motor based on the crankcase blow-by amount;
the target rotating speed determining module is used for controlling the test oil-gas separator in the test vehicle to perform oil-gas separation at the initial motor rotating speed under the target working condition, obtaining the content of fuel filtered by the absolute filter element in a preset time period, and determining the target motor rotating speed based on the fuel content, wherein the absolute filter element is used for filtering the fuel in the test oil-gas separator;
The rotation speed table acquisition module is used for acquiring the engine rotation speed and the engine torque of the test vehicle under the target working condition and acquiring an initial rotation speed table by utilizing the target motor rotation speed, the engine rotation speed and the engine torque.
Optionally, the table look-up determining module 701 includes:
the first table look-up determining unit is used for taking the initial rotation speed table look-up as a target rotation speed table look-up under the condition that the real-time boundary condition is consistent with the target boundary condition;
and the second table lookup determining unit is used for correcting the initial rotation speed table lookup based on the correction coefficient under the condition that the real-time boundary condition is inconsistent with the target boundary condition, and taking the corrected rotation speed table lookup as the target rotation speed table lookup.
Optionally, the target rotation speed determining module includes:
the first rotation speed determining unit is used for taking the initial motor rotation speed as the target motor rotation speed under the condition that the fuel content is not greater than a preset fuel threshold value;
the second rotation speed determining unit is used for adjusting the initial motor rotation speed to obtain the adjusted motor rotation speed under the condition that the fuel content is larger than the preset fuel threshold value, controlling the test oil-gas separator to conduct oil-gas separation according to the adjusted motor rotation speed under the target working condition until the fuel content is not larger than the preset fuel threshold value, and taking the finally adjusted motor rotation speed as the target motor rotation speed.
Optionally, the table look-up determining module 701 further includes:
the target rotating speed correction unit is used for correcting the target boundary condition, re-acquiring the crankcase blow-by amount of the test vehicle under the target working condition under the corrected target boundary condition, and determining the corrected target motor rotating speed based on the re-acquired crankcase blow-by amount;
and the correction coefficient determining unit is used for obtaining a correction coefficient based on the corrected target motor rotating speed and the target motor rotating speed.
Optionally, the parameters related to the real-time boundary condition include at least one of an ambient temperature at which the vehicle is located, a fuel temperature, or an engine intake temperature.
The above-described respective modules in the vehicle oil-gas separation control device may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a server, and the internal structure of which may be as shown in fig. 8. The computer device includes a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer equipment is used for storing data such as target rotating speed table lookup and the like. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for communicating with an external terminal through a network connection. The computer program when executed by the processor is configured to implement a vehicle oil-gas separation control method.
It will be appreciated by those skilled in the art that the structure shown in FIG. 8 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, there is provided a computer device including a memory and a processor, the memory storing a computer program, the processor implementing the steps of the vehicle oil-gas separation control method provided in the above embodiment when executing the computer program:
the oil-gas separator of the vehicle comprises a motor; acquiring a real-time boundary condition of a vehicle, and determining a target rotating speed table based on the real-time boundary condition;
Determining the motor speed of the motor in a target speed table according to the real-time engine speed and the real-time engine torque of the vehicle;
And controlling the oil-gas separator to separate oil from gas according to the rotation speed of the motor.
In one embodiment, the processor when executing the computer program further performs the steps of:
Determining a target boundary condition, under the target boundary condition, acquiring crankcase blow-by gas of the test vehicle under a target working condition, and determining the initial motor rotating speed of the test motor based on the crankcase blow-by gas;
Under a target working condition, controlling a test oil-gas separator in a test vehicle to perform oil-gas separation at an initial motor rotation speed, obtaining the content of fuel filtered out by an absolute filter element in a preset time period, and determining the target motor rotation speed based on the fuel content, wherein the absolute filter element is used for filtering the fuel in the test oil-gas separator;
And acquiring the engine speed and the engine torque of the test vehicle under the target working condition, and acquiring an initial speed table by utilizing the target motor speed, the engine speed and the engine torque.
In one embodiment, the processor when executing the computer program further performs the steps of:
under the condition that the real-time boundary condition is consistent with the target boundary condition, taking the initial rotation speed table as a target rotation speed table;
And under the condition that the real-time boundary condition is inconsistent with the target boundary condition, correcting the initial rotation speed table based on the correction coefficient, and taking the corrected rotation speed table as the target rotation speed table.
In one embodiment, the processor when executing the computer program further performs the steps of:
Under the condition that the fuel content is not greater than a preset fuel threshold, taking the initial motor rotating speed as a target motor rotating speed;
and under the condition that the fuel content is greater than a preset fuel threshold, adjusting the initial motor rotating speed to obtain the adjusted motor rotating speed, and under the target working condition, controlling the test oil-gas separator to conduct oil-gas separation according to the adjusted motor rotating speed until the fuel content is not greater than the preset fuel threshold, and taking the finally adjusted motor rotating speed as the target motor rotating speed.
In one embodiment, the processor when executing the computer program further performs the steps of:
Correcting the target boundary condition, re-acquiring crankcase blow-by amount of the test vehicle under the target working condition under the corrected target boundary condition, and determining the corrected target motor rotating speed based on the re-acquired crankcase blow-by amount;
And obtaining a correction coefficient based on the corrected target motor speed and the target motor speed.
In one embodiment, the processor when executing the computer program further performs the steps of:
The parameters related to the real-time boundary condition include at least one of an ambient temperature at which the vehicle is located, a fuel temperature, or an engine intake temperature.
The implementation principle and technical effects of the above embodiment are similar to those of the above method embodiment, and are not repeated here.
In one embodiment, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the vehicle oil-gas separation control method provided in the above embodiment:
the oil-gas separator of the vehicle comprises a motor; acquiring a real-time boundary condition of a vehicle, and determining a target rotating speed table based on the real-time boundary condition;
Determining the motor speed of the motor in a target speed table according to the real-time engine speed and the real-time engine torque of the vehicle;
And controlling the oil-gas separator to separate oil from gas according to the rotation speed of the motor.
In one embodiment, the computer program when executed by the processor further performs the steps of:
Determining a target boundary condition, under the target boundary condition, acquiring crankcase blow-by gas of the test vehicle under a target working condition, and determining the initial motor rotating speed of the test motor based on the crankcase blow-by gas;
Under a target working condition, controlling a test oil-gas separator in a test vehicle to perform oil-gas separation at an initial motor rotation speed, obtaining the content of fuel filtered out by an absolute filter element in a preset time period, and determining the target motor rotation speed based on the fuel content, wherein the absolute filter element is used for filtering the fuel in the test oil-gas separator;
And acquiring the engine speed and the engine torque of the test vehicle under the target working condition, and acquiring an initial speed table by utilizing the target motor speed, the engine speed and the engine torque.
In one embodiment, the computer program when executed by the processor further performs the steps of:
under the condition that the real-time boundary condition is consistent with the target boundary condition, taking the initial rotation speed table as a target rotation speed table;
And under the condition that the real-time boundary condition is inconsistent with the target boundary condition, correcting the initial rotation speed table based on the correction coefficient, and taking the corrected rotation speed table as the target rotation speed table.
In one embodiment, the computer program when executed by the processor further performs the steps of:
Under the condition that the fuel content is not greater than a preset fuel threshold, taking the initial motor rotating speed as a target motor rotating speed;
and under the condition that the fuel content is greater than a preset fuel threshold, adjusting the initial motor rotating speed to obtain the adjusted motor rotating speed, and under the target working condition, controlling the test oil-gas separator to conduct oil-gas separation according to the adjusted motor rotating speed until the fuel content is not greater than the preset fuel threshold, and taking the finally adjusted motor rotating speed as the target motor rotating speed.
In one embodiment, the computer program when executed by the processor further performs the steps of:
Correcting the target boundary condition, re-acquiring crankcase blow-by amount of the test vehicle under the target working condition under the corrected target boundary condition, and determining the corrected target motor rotating speed based on the re-acquired crankcase blow-by amount;
And obtaining a correction coefficient based on the corrected target motor speed and the target motor speed.
In one embodiment, the computer program when executed by the processor further performs the steps of:
The parameters related to the real-time boundary condition include at least one of an ambient temperature at which the vehicle is located, a fuel temperature, or an engine intake temperature.
The implementation principle and technical effects of the above embodiment are similar to those of the above method embodiment, and are not repeated here.
In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the vehicle oil-gas separation control method provided by the above embodiment:
the oil-gas separator of the vehicle comprises a motor; acquiring a real-time boundary condition of a vehicle, and determining a target rotating speed table based on the real-time boundary condition;
Determining the motor speed of the motor in a target speed table according to the real-time engine speed and the real-time engine torque of the vehicle;
And controlling the oil-gas separator to separate oil from gas according to the rotation speed of the motor.
In one embodiment, the computer program when executed by the processor further performs the steps of:
Determining a target boundary condition, under the target boundary condition, acquiring crankcase blow-by gas of the test vehicle under a target working condition, and determining the initial motor rotating speed of the test motor based on the crankcase blow-by gas;
Under a target working condition, controlling a test oil-gas separator in a test vehicle to perform oil-gas separation at an initial motor rotation speed, obtaining the content of fuel filtered out by an absolute filter element in a preset time period, and determining the target motor rotation speed based on the fuel content, wherein the absolute filter element is used for filtering the fuel in the test oil-gas separator;
And acquiring the engine speed and the engine torque of the test vehicle under the target working condition, and acquiring an initial speed table by utilizing the target motor speed, the engine speed and the engine torque.
In one embodiment, the computer program when executed by the processor further performs the steps of:
under the condition that the real-time boundary condition is consistent with the target boundary condition, taking the initial rotation speed table as a target rotation speed table;
And under the condition that the real-time boundary condition is inconsistent with the target boundary condition, correcting the initial rotation speed table based on the correction coefficient, and taking the corrected rotation speed table as the target rotation speed table.
In one embodiment, the computer program when executed by the processor further performs the steps of:
Under the condition that the fuel content is not greater than a preset fuel threshold, taking the initial motor rotating speed as a target motor rotating speed;
and under the condition that the fuel content is greater than a preset fuel threshold, adjusting the initial motor rotating speed to obtain the adjusted motor rotating speed, and under the target working condition, controlling the test oil-gas separator to conduct oil-gas separation according to the adjusted motor rotating speed until the fuel content is not greater than the preset fuel threshold, and taking the finally adjusted motor rotating speed as the target motor rotating speed.
In one embodiment, the computer program when executed by the processor further performs the steps of:
Correcting the target boundary condition, re-acquiring crankcase blow-by amount of the test vehicle under the target working condition under the corrected target boundary condition, and determining the corrected target motor rotating speed based on the re-acquired crankcase blow-by amount;
And obtaining a correction coefficient based on the corrected target motor speed and the target motor speed.
In one embodiment, the computer program when executed by the processor further performs the steps of:
The parameters related to the real-time boundary condition include at least one of an ambient temperature at which the vehicle is located, a fuel temperature, or an engine intake temperature.
The implementation principle and technical effects of the above embodiment are similar to those of the above method embodiment, and are not repeated here.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magneto-resistive random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (PHASE CHANGE Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.
Claims (10)
1. A vehicle oil-gas separation control method, characterized in that an electric motor is included in an oil-gas separator of the vehicle, the method comprising:
Determining a target boundary condition, under the target boundary condition, acquiring crankcase blow-by gas of a test vehicle under a target working condition, and determining an initial motor rotating speed of the test motor based on the crankcase blow-by gas;
Under the target working condition, controlling a test oil-gas separator in the test vehicle to perform oil-gas separation at the initial motor rotating speed, obtaining the content of fuel filtered out by an absolute filter element in a preset time period, and taking the initial motor rotating speed as a target motor rotating speed under the condition that the content of fuel is not more than a preset fuel threshold; the absolute filter element is used for filtering fuel oil in the test oil-gas separator;
Under the condition that the fuel content is larger than a preset fuel threshold, the initial motor rotating speed is adjusted to obtain an adjusted motor rotating speed, and under the target working condition, the test oil-gas separator is controlled to conduct oil-gas separation according to the adjusted motor rotating speed until the fuel content is not larger than the preset fuel threshold, and the finally adjusted motor rotating speed is taken as the target motor rotating speed;
acquiring the engine speed and the engine torque of the test vehicle under the target working condition, and acquiring an initial speed table by utilizing the target motor speed, the engine speed and the engine torque;
Acquiring a real-time boundary condition of the vehicle, and taking the initial rotation speed table as a target rotation speed table when the real-time boundary condition is consistent with the target boundary condition;
Under the condition that the real-time boundary condition is inconsistent with the target boundary condition, correcting the initial rotation speed table based on a correction coefficient, and taking the corrected rotation speed table as a target rotation speed table;
Determining the motor speed of the motor in the target speed table according to the real-time engine speed and the real-time engine torque of the vehicle;
and controlling the oil-gas separator to separate oil from gas according to the rotating speed of the motor.
2. The method of claim 1, wherein the target boundary condition relates to a parameter comprising at least one of an ambient temperature, a fuel temperature, or an engine intake temperature of the vehicle.
3. The method of claim 1, wherein said adjusting said initial motor speed comprises:
and adding a preset value to the initial motor rotating speed.
4. The method of claim 1, wherein the real-time boundary condition is an engine intake air temperature of the vehicle of 50 degrees celsius.
5. The method according to claim 1, wherein the determining the correction factor includes:
Correcting the target boundary condition, re-acquiring crankcase blow-by of the test vehicle under the target working condition under the corrected target boundary condition, and determining the corrected target motor rotating speed based on the re-acquired crankcase blow-by;
and obtaining the correction coefficient based on the corrected target motor speed and the target motor speed.
6. The method of any one of claims 1 to 5, wherein the parameters related to the real-time boundary condition include at least one of an ambient temperature, a fuel temperature, or an engine intake temperature at which the vehicle is located.
7. A vehicle oil-gas separation control device, characterized in that an electric motor is included in an oil-gas separator of the vehicle, the device comprising:
The initial rotation speed determining module is used for determining a target boundary condition, acquiring crankcase blow-by amount of the test vehicle under a target working condition under the target boundary condition, and determining the initial motor rotation speed of the test motor based on the crankcase blow-by amount;
The target rotating speed determining module is used for controlling a test oil-gas separator in the test vehicle to perform oil-gas separation at the initial motor rotating speed under the target working condition, acquiring the content of fuel filtered out by an absolute filter element in a preset time period, and taking the initial motor rotating speed as the target motor rotating speed under the condition that the fuel content is not greater than a preset fuel threshold; the absolute filter element is used for filtering fuel oil in the test oil-gas separator; under the condition that the fuel content is larger than a preset fuel threshold, the initial motor rotating speed is adjusted to obtain an adjusted motor rotating speed, and under the target working condition, the test oil-gas separator is controlled to conduct oil-gas separation according to the adjusted motor rotating speed until the fuel content is not larger than the preset fuel threshold, and the finally adjusted motor rotating speed is taken as the target motor rotating speed;
the rotating speed table acquisition module is used for acquiring the engine rotating speed and the engine torque of the test vehicle under the target working condition and acquiring an initial rotating speed table by utilizing the target motor rotating speed, the engine rotating speed and the engine torque;
The table lookup determining module is used for acquiring real-time boundary conditions of the vehicle, and taking the initial rotation speed table lookup as a target rotation speed table lookup under the condition that the real-time boundary conditions are consistent with the target boundary conditions; under the condition that the real-time boundary condition is inconsistent with the target boundary condition, correcting the initial rotation speed table based on a correction coefficient, and taking the corrected rotation speed table as a target rotation speed table;
the rotating speed determining module is used for determining the motor rotating speed of the motor in the target rotating speed table according to the real-time engine rotating speed and the real-time engine torque of the vehicle;
And the oil-gas separation module is used for controlling the oil-gas separator to perform oil-gas separation according to the rotating speed of the motor.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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