CN115263488B - Oil pump control method and device, electronic equipment and storage medium - Google Patents
Oil pump control method and device, electronic equipment and storage medium Download PDFInfo
- Publication number
- CN115263488B CN115263488B CN202210858334.7A CN202210858334A CN115263488B CN 115263488 B CN115263488 B CN 115263488B CN 202210858334 A CN202210858334 A CN 202210858334A CN 115263488 B CN115263488 B CN 115263488B
- Authority
- CN
- China
- Prior art keywords
- engine
- oil pressure
- calibrated
- altitude
- working condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
-
- 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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
-
- 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
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
-
- 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
- Y02T10/12—Improving ICE efficiencies
Abstract
The application provides an oil pump control method, an oil pump control device, electronic equipment and a storage medium, wherein the oil pump control method comprises the following steps: acquiring calibrated engine oil pressure based on the combined requirements of an altitude interval and an engine working condition of supercharger rotation speed calibration; acquiring the current altitude of the current environment of the engine and acquiring the current engine working condition of the engine; and searching the target engine oil pressure jointly required by the current altitude and the current engine working condition in the calibrated engine oil pressure, and controlling an engine oil pump to work according to the target engine oil pressure. According to the embodiment of the application, the oil consumption and the emission of the engine are considered, and meanwhile, the lubrication requirement of the supercharger is guaranteed.
Description
Technical Field
The application relates to the field of vehicle control, in particular to an oil pump control method, an oil pump control device, electronic equipment and a storage medium.
Background
When the engine runs at different altitudes, the rotation speed of the supercharger is different even under the same working condition in order to meet the lubrication requirement of the supercharger due to different external environment pressures. In the prior art, in order to meet the lubrication requirement of the supercharger, the engine oil pressure is simply controlled according to the altitude: when the engine is at a low altitude, controlling the engine oil pump to work at a normal engine oil pressure; when at high altitude, the oil pump is controlled to operate at the highest oil pressure. Although the mode can meet the lubrication requirement of the supercharger, the fuel consumption of the engine is easy to be high, and the emission to the engine is greatly increased, so that additional resource waste and environmental pollution are caused.
Disclosure of Invention
An object of the present application is to provide an oil pump control method, an apparatus, an electronic device, and a storage medium, which can ensure lubrication requirements of a supercharger while considering engine oil consumption and emission.
According to an aspect of an embodiment of the present application, there is disclosed an oil pump control method, including:
acquiring calibrated engine oil pressure based on the combined requirements of an altitude interval and an engine working condition of supercharger rotation speed calibration;
acquiring the current altitude of the current environment of the engine and acquiring the current engine working condition of the engine;
and searching the target engine oil pressure jointly required by the current altitude and the current engine working condition in the calibrated engine oil pressure, and controlling an engine oil pump to work according to the target engine oil pressure.
According to an aspect of an embodiment of the present application, there is disclosed an oil pump control device, including:
the calibration data acquisition module is configured to acquire the calibrated engine oil pressure based on the combined requirements of the altitude interval and the engine working condition and calibrated by the rotating speed of the supercharger;
the current data acquisition module is configured to acquire the current altitude of the current environment of the engine and acquire the current engine working condition of the engine;
and the searching control module is configured to search the target engine oil pressure jointly required by the current altitude and the current engine working condition in the calibrated engine oil pressure and control the engine oil pump to work according to the target engine oil pressure.
According to an aspect of an embodiment of the present application, an electronic device is disclosed, including: one or more processors; and storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the methods provided in the various alternative implementations described above.
According to an aspect of embodiments of the present application, a computer program medium having computer readable instructions stored thereon, which when executed by a processor of a computer, cause the computer to perform the methods provided in the various alternative implementations described above is disclosed.
According to an aspect of embodiments of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions are read from the computer-readable storage medium by a processor of a computer device, and executed by the processor, cause the computer device to perform the methods provided in the various alternative implementations described above.
In the embodiment of the application, the calibrated engine oil pressure based on the rotation speed calibration of the supercharger and required by the combination of the altitude interval and the working condition of the engine is obtained, and then the target engine oil pressure required by the combination of the current altitude and the working condition of the engine is searched for at the calibrated engine oil pressure, so that the engine oil pump is controlled to work according to the target engine oil pressure, and the lubrication requirement of the supercharger can be ensured while the oil consumption and the emission of the engine are considered.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 shows a flowchart of an oil pump control method according to an embodiment of the present application.
FIG. 2 illustrates a schematic of altitude versus ambient pressure according to one embodiment of the present application.
FIG. 3 illustrates a schematic diagram of base calibrated oil pressure for a plains altitude interval according to one embodiment of the present application.
Fig. 4 shows a schematic diagram of a first calibrated oil pressure corresponding to the first altitude interval corrected on the basis of the embodiment of fig. 3 according to an embodiment of the present application.
Fig. 5 shows a schematic diagram of a second calibrated oil pressure corresponding to the second altitude interval corrected on the basis of the embodiment of fig. 4 according to an embodiment of the present application.
Fig. 6 shows a schematic diagram of a third calibrated oil pressure corresponding to a third altitude interval corrected on the basis of the embodiment of fig. 5 according to an embodiment of the present application.
FIG. 7 illustrates a schematic diagram of a safe calibration oil pressure corresponding to the highest altitude interval corrected based on the embodiment of FIG. 6, according to one embodiment of the present application.
Fig. 8 shows a detailed flow diagram of oil pump control according to one embodiment of the present application.
Fig. 9 shows a block diagram of an oil pump control device according to an embodiment of the present application.
FIG. 10 illustrates an electronic device hardware diagram according to one embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application may be practiced without one or more of the specific details, or with other methods, components, steps, etc. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
The application provides a control method of an oil pump, which is used for controlling the oil pump to work according to different engine oil pressures under different conditions, so that the lubrication requirement of a supercharger is ensured while considering the oil consumption and the emission of an engine.
Fig. 1 shows a flowchart of an oil pump control method according to an embodiment of the present application, an exemplary execution body of which is a controller of a vehicle, and the method includes:
step S110, obtaining calibrated engine oil pressure based on the combined requirements of an altitude interval and an engine working condition and calibrated by the rotation speed of a supercharger;
step S120, acquiring the current altitude of the current environment of the engine, and acquiring the current engine working condition of the engine;
and step 130, searching a target engine oil pressure required by the combination of the current altitude and the current engine working condition in the calibrated engine oil pressure, and controlling an engine oil pump to work according to the target engine oil pressure.
In the embodiment of the application, the engine oil pressure jointly required by different altitude intervals and different engine working conditions is calibrated in advance based on the rotation speed of the supercharger, so that the calibrated engine oil pressure jointly required by different altitude intervals and different engine working conditions is obtained. It can be seen that in the embodiment of the application, the calibrated oil pressure is simultaneously related to the rotation speed of the supercharger, the altitude interval and the working condition of the engine. Whereas in the prior art, the oil pressure is only related to altitude, when at high altitude, the oil pump is controlled to operate at the highest oil pressure.
On the one hand, even at high altitudes, during engine starting, the supercharger is not operated, in which case the oil pump is controlled to operate at the highest oil pressure in a prior art manner, the piston cooling nozzle is in a normal injection state, and cools the piston, so that the temperature of the combustion chamber rises slowly, and finally the emission in the engine starting stage rises greatly.
In the embodiment of the application, since the calibrated oil pressure is associated with the rotation speed of the supercharger, when the supercharger is in the engine starting stage where the supercharger is not working, the corresponding calibrated oil pressure can be adaptively calibrated to be low oil pressure, so that the problem of great rise of emissions in the engine starting stage caused by the prior art is avoided. Moreover, because the calibrated oil pressure is related to the rotation speed of the supercharger, the problem that emissions rise greatly in the starting stage of the engine is avoided, and meanwhile, the lubrication requirement of the supercharger can be ensured by the calibrated oil pressure.
On the other hand, even at high altitude, when the engine is in a medium-small load working condition, controlling the oil pump to work at the highest oil pressure according to the prior art can result in excessive oil pump capacity and thus higher oil consumption.
In the embodiment of the application, because the calibrated engine oil pressure is associated with the working condition of the engine, when the engine is in the working condition of medium and small load, the corresponding calibrated engine oil pressure can be adaptively controlled, so that the problem of high oil consumption of the engine in the working condition of medium and small load caused by the prior art is avoided.
In an actual running environment, the current altitude and the current engine working condition of the current environment of the engine are obtained, and then the target engine oil pressure which is jointly required by the current altitude and the current engine working condition is searched in the calibrated engine oil pressure based on the current altitude and the current engine working condition, and then the engine oil pump is controlled to work according to the target engine oil pressure.
The obtained calibrated engine oil pressure can ensure the lubrication requirement of the supercharger while considering the engine oil consumption and the emission. Therefore, the target engine oil pressure obtained by searching in the calibrated engine oil pressure can also ensure the lubrication requirement of the supercharger while considering the engine oil consumption and the emission.
Therefore, in the embodiment of the application, the calibrated engine oil pressure based on the rotation speed calibration of the supercharger and required by the combination of the altitude interval and the working condition of the engine is obtained, and then the target engine oil pressure required by the combination of the current altitude and the working condition of the engine is searched for at the calibrated engine oil pressure, so that the engine oil pump is controlled to work according to the target engine oil pressure, and the lubrication requirement of the supercharger can be ensured while the oil consumption and the emission of the engine are considered.
In one embodiment, obtaining a calibrated oil pressure based on a combined demand of an altitude interval and an engine operating condition for supercharger speed calibration includes:
obtaining basic calibration engine oil pressure matched with the rotating speed of the supercharger in a calibrated plain altitude interval;
acquiring the minimum engine oil pressure jointly required by the calibrated highest altitude interval and the working condition of the engine;
and acquiring the calibrated oil pressure based on the basic calibrated oil pressure and the minimum oil pressure.
In this embodiment, the altitude sections calibrated in advance include plain altitude sections and altitude sections of the altitude. Wherein, plain altitude interval is used for describing altitude interval of plain area, and altitude interval of plateau is used for describing altitude interval of plateau area. The altitude section of the altitude is a section of the altitude, and the section of the altitude is referred to as the altitude section.
And obtaining basic calibration engine oil pressure matched with the rotating speed of the supercharger in the plain altitude interval. Wherein the base nominal oil pressure is used to describe the oil pressure for purposes of satisfying supercharger lubrication at the flat spot; and, the basic calibration oil pressure is positively correlated to the supercharger speed.
And obtaining the minimum engine oil pressure required by the combination of the highest altitude interval and the working condition of the engine. The minimum oil pressure is used to describe the oil pressure at which the minimum requirement for lubrication under each condition can be satisfied for the purpose of protecting the supercharger at the highest elevation area.
And further, based on the basic calibration oil pressure corresponding to the plain altitude interval and the lowest oil pressure corresponding to the highest altitude interval, the calibration oil pressure of each altitude interval is obtained.
In one embodiment, obtaining the minimum oil pressure required by the combination of the calibrated highest altitude interval and the engine operating condition comprises:
acquiring a target supercharger speed detected by a supercharger speed sensor under the combined condition of the highest altitude interval and the engine working condition;
and taking the lowest-demand engine oil pressure of the supercharger with the target supercharger rotating speed as the lowest engine oil pressure.
In this embodiment, the engine is placed in a simulated environment of the highest altitude interval, and the engine is controlled to operate under each engine working condition, and then the target supercharger speed under the combined condition of the highest altitude interval and each engine working condition is detected by using the supercharger speed sensor.
The supercharger has the engine oil pressure corresponding to the minimum requirement at each rotating speed so as to ensure the safety of the supercharger. Therefore, after the target supercharger rotating speed is obtained, the lowest engine oil pressure required by the supercharger at the target supercharger rotating speed is used as the lowest engine oil pressure required by the combination of the highest altitude interval and the corresponding engine working condition.
In an embodiment, obtaining the calibrated oil pressure based on the base calibrated oil pressure and the minimum oil pressure includes:
taking the basic calibration engine oil pressure as the calibration engine oil pressure which is jointly required by the plain altitude interval and the working condition of the engine;
and correcting the calibrated oil pressure required by the combination of the previous altitude interval and the engine working condition in sequence according to the sequence of the altitude interval from low to high to obtain the calibrated oil pressure required by the combination of the current altitude interval and the engine working condition until the lowest oil pressure is used as the calibrated oil pressure required by the combination of the highest altitude interval and the engine working condition.
In this embodiment, the altitude sections are denoted as altitude sections N1 to Nm in the order from low to high, where altitude section N1 is a plain altitude section, nm is the highest altitude section, and m is an integer greater than 2.
The basic calibration oil pressure matched with the rotation speed of the supercharger in the height interval N1 is firstly used as the calibration oil pressure required by the combination of the height interval N1 and the working conditions of all the engines.
And correcting the calibrated oil pressure required by the combination of the height interval N1 and the working conditions of each engine to obtain the calibrated oil pressure required by the combination of the height interval N2 and the working conditions of each engine.
And correcting the calibrated oil pressure required by the combination of the height interval N2 and the working conditions of each engine to obtain the calibrated oil pressure required by the combination of the height interval N3 and the working conditions of each engine.
And iterating continuously until reaching the height interval Nm, and taking the lowest engine oil pressure required by the height interval Nm and the combined requirements of all the engine working conditions as the calibrated engine oil pressure required by the height interval Nm and the combined requirements of all the engine working conditions.
In one embodiment, obtaining a calibrated oil pressure based on a combined demand of an altitude interval and an engine operating condition for supercharger speed calibration includes:
acquiring basic calibration engine oil pressure based on the combined requirements of a plain altitude interval and the working condition of the engine and calibrated by the rotating speed of the supercharger;
acquiring first calibrated engine oil pressure which is calibrated based on the basic calibrated engine oil pressure and is jointly required by a first altitude interval and the working condition of the engine, wherein the first altitude interval is higher than the plain altitude interval;
acquiring second calibration engine oil pressure which is calibrated based on the first calibration engine oil pressure and is jointly required by a second altitude interval and the working condition of the engine, wherein the second altitude interval is higher than the first altitude interval;
acquiring a third calibrated engine oil pressure which is calibrated based on the second calibrated engine oil pressure and is jointly required by a third altitude interval and the working condition of the engine, wherein the third altitude interval is higher than the second altitude interval;
and acquiring safe calibration engine oil pressure required by the combination of the calibrated highest altitude interval and the engine working condition, wherein the safe calibration engine oil pressure is the engine oil pressure with the lowest requirement of the supercharger with the target supercharger rotating speed under the combination of the highest altitude interval and the engine working condition, and the highest altitude interval is higher than the third altitude interval.
In this embodiment, the altitude section is divided into 5 altitude sections, and the altitude sections are sequentially ordered from low to high: a plain altitude section, a first altitude section, a second altitude section, a third altitude section, and a highest altitude section.
The engine oil pressure is calibrated based on the combined requirements of the plain altitude interval and the working conditions of each engine. The basic calibration engine oil pressure is calibrated based on the rotation speed of the supercharger to meet the purpose of supercharger lubrication.
The combined requirement of the first altitude interval and each engine working condition is a first calibrated engine oil pressure. The first calibration oil pressure is obtained by correcting and calibrating for the purpose of meeting the lubrication of the supercharger based on the basic calibration oil pressure.
The combined requirement of the second altitude interval and each engine working condition is the second calibration engine oil pressure. The second calibration oil pressure is corrected and calibrated based on the first calibration oil pressure for the purpose of meeting the lubrication of the supercharger.
And the combined requirement of the third altitude interval and each engine working condition is a third calibration engine oil pressure. The third calibration oil pressure is obtained by correcting and calibrating the second calibration oil pressure to meet the purpose of lubrication of the supercharger.
The highest altitude interval and the working condition of each engine are combined to be required to safely calibrate the engine oil pressure. The safety calibration engine oil pressure is calibrated with the aim of protecting the supercharger based on the engine oil pressure of the lowest supercharger requirement of the target supercharger speed under the combined condition of the highest altitude interval and each engine working condition.
In one embodiment, obtaining a current altitude of an environment in which an engine is currently located includes:
acquiring a current ambient pressure value detected by an ambient pressure sensor;
and converting the current ambient pressure value into the current altitude according to the mapping relation between the ambient pressure value and the altitude.
In this embodiment, an environmental pressure sensor is preset and may be disposed inside the controller. The environmental pressure sensor is exemplified by a silicon chip, a pressure diaphragm is etched in the center, the pressure diaphragm is stressed and deformed by the change of the environmental pressure, the resistance is changed by the piezoresistive effect, and a voltage signal which is in linear relation with the pressure is formed after the processing of the chip. After the controller obtains the voltage signal generated by the environmental pressure sensor, the voltage signal is processed into a corresponding current environmental pressure value, and then the current environmental pressure value is converted into the current altitude according to the mapping relation between the environmental pressure value and the altitude.
In one embodiment, obtaining a current engine operating condition of the engine includes:
acquiring the current crankshaft rotation speed detected by an engine rotation speed sensor;
and converting the current crankshaft rotating speed into the current engine working condition according to the mapping relation between the crankshaft rotating speed and the engine working condition.
In this embodiment, an engine rotational speed sensor is preset, and a corresponding voltage-frequency signal is output to the controller by monitoring the rotational speed of the crankshaft of the engine. And after receiving the voltage-frequency signal sent by the engine speed sensor, the controller processes the voltage-frequency signal into a corresponding current crankshaft speed, and further converts the current crankshaft speed into a current engine working condition according to the mapping relation between the crankshaft speed and the engine working condition. Among other things, the determined engine operating conditions include, but are not limited to: engine speed, engine load.
Fig. 2 shows a schematic diagram of the mapping relationship between altitude and environmental pressure according to an embodiment of the present application. Fig. 3 shows a schematic diagram of a basic calibration oil pressure corresponding to a plain altitude interval according to an embodiment of the present application. Fig. 4 shows a schematic diagram of a first calibration oil pressure corresponding to a first altitude interval corrected based on the embodiment of fig. 3 according to an embodiment of the present application. Fig. 5 shows a schematic diagram of a second calibration oil pressure corresponding to a second altitude interval corrected based on the embodiment of fig. 4 according to an embodiment of the present application. Fig. 6 shows a schematic diagram of a third calibration oil pressure corresponding to a third altitude interval corrected based on the embodiment of fig. 5 according to an embodiment of the present application. Fig. 7 shows a schematic diagram of a safety calibration oil pressure corresponding to the highest altitude interval corrected based on the embodiment of fig. 6 according to an embodiment of the present application.
Referring to fig. 2-7, in one embodiment, when the ambient pressure is greater than or equal to 954hpa, it is illustrated that the current altitude is less than or equal to 500 meters, corresponding to a plain altitude interval. When the ambient pressure is between 954hpa and 845hpa, it is indicated that the current altitude is between 500 meters and 1500 meters, corresponding to the first altitude interval. When the ambient pressure is between 845hpa and 709hpa, it is indicated that the current altitude is between 1500 meters and 3000 meters, corresponding to the second altitude interval. When the ambient pressure is between 709hpa and 577hpa, the current altitude is between 3000 meters and 4500 meters, corresponding to the third altitude interval. When the ambient pressure is less than or equal to 577hpa, it is stated that the current altitude is greater than 4500 meters, corresponding to the highest altitude interval.
For the plain altitude interval, as shown in fig. 3, the corresponding basic calibration engine oil pressure is obtained according to the rotation speed of the supercharger.
For the first altitude interval, the engine is mounted on a high-pressure analog bench, the ambient pressure is controlled at 845hpa, the purpose of meeting the lubrication of the supercharger is achieved, and the basic calibration engine oil pressure in fig. 3 is corrected and calibrated, so that the first calibration engine oil pressure at each specific working condition point is obtained as shown in fig. 4.
For the second altitude interval, the ambient pressure is controlled at 709hpa to meet the purpose of supercharger lubrication, and the first calibration oil pressure in fig. 4 is corrected and calibrated to obtain the second calibration oil pressure at each specific working point as shown in fig. 5.
For the third altitude interval, the ambient pressure is controlled at 577hpa, so as to meet the purpose of supercharger lubrication, and the second calibration oil pressure in fig. 5 is corrected and calibrated, so as to obtain the third calibration oil pressure at each specific working point as shown in fig. 6.
For the second altitude interval, the ambient pressure is controlled to be less than 577hpa, so as to protect the supercharger, and the oil pressure at each specific working point is set to be the oil pressure meeting the minimum requirement of the corresponding working point, so that the safety calibration oil pressure at each specific working point is obtained as shown in fig. 7.
Fig. 8 shows a detailed flow diagram of oil pump control according to an embodiment of the present application.
Referring to fig. 8, in this embodiment, after the engine is started, the current ambient pressure and the current engine operating condition are obtained. Since the ambient pressure and altitude can be mutually converted, the engine oil pressure required by the combination of the ambient pressure and the engine working condition is equivalent to the engine oil pressure required by the combination of the altitude and the engine working condition.
After the current ambient pressure is obtained, it is confirmed whether it is greater than 954hpa. If the pressure of the engine is greater than 954hpa, indicating that the engine is currently in a plain altitude interval, controlling an oil pump to work according to the corresponding basic calibration oil pressure according to the current engine working condition.
If it is less than or equal to 954hpa, it is further confirmed whether it is greater than 845hpa. If the engine working condition is greater than 845hpa, indicating that the engine is currently in the first altitude interval, controlling the oil pump to work according to the corresponding first calibrated oil pressure according to the current engine working condition.
If it is equal to or less than 845hpa, it is again confirmed whether it is greater than 709hpa. If the engine pressure is larger than 709hpa, indicating that the engine is currently located in the second altitude interval, controlling the oil pump to work according to the corresponding second calibrated oil pressure according to the current engine working condition.
If it is less than or equal to 709hpa, it is further confirmed whether it is more than 577hpa. If the engine pressure is larger than 577hpa, the engine is currently in a third altitude interval, and the oil pump is controlled to work according to the corresponding third calibrated oil pressure according to the current engine working condition.
If the engine working condition is less than or equal to 577hpa, indicating that the engine is currently located in the highest altitude interval, controlling the oil pump to work according to the corresponding safety calibration oil pressure according to the current engine working condition.
Fig. 9 shows a block diagram of an oil pump control device according to an embodiment of the present application, the device including:
a calibration data acquisition module 210 configured to acquire a calibrated oil pressure based on a combined demand of an altitude interval and an engine operating condition for supercharger rotation speed calibration;
the current data acquisition module 220 is configured to acquire a current altitude of an environment in which an engine is currently located and acquire a current engine working condition of the engine;
the searching control module 230 is configured to search the target engine oil pressure jointly required by the current altitude and the current engine working condition in the calibrated engine oil pressure, and control the engine oil pump to work according to the target engine oil pressure.
In an exemplary embodiment of the present application, the calibration data acquisition module is configured to:
obtaining basic calibration engine oil pressure matched with the rotating speed of the supercharger in a calibrated plain altitude interval;
acquiring the minimum engine oil pressure jointly required by the calibrated highest altitude interval and the working condition of the engine;
and acquiring the calibrated oil pressure based on the basic calibrated oil pressure and the minimum oil pressure.
In an exemplary embodiment of the present application, the calibration data acquisition module is configured to:
acquiring a target supercharger speed detected by a supercharger speed sensor under the combined condition of the highest altitude interval and the engine working condition;
and taking the lowest-demand engine oil pressure of the supercharger with the target supercharger rotating speed as the lowest engine oil pressure.
In an exemplary embodiment of the present application, the calibration data acquisition module is configured to:
taking the basic calibration engine oil pressure as the calibration engine oil pressure which is jointly required by the plain altitude interval and the working condition of the engine;
and correcting the calibrated oil pressure required by the combination of the previous altitude interval and the engine working condition in sequence according to the sequence of the altitude interval from low to high to obtain the calibrated oil pressure required by the combination of the current altitude interval and the engine working condition until the lowest oil pressure is used as the calibrated oil pressure required by the combination of the highest altitude interval and the engine working condition.
In an exemplary embodiment of the present application, the calibration data acquisition module is configured to:
acquiring basic calibration engine oil pressure based on the combined requirements of a plain altitude interval and the working condition of the engine and calibrated by the rotating speed of the supercharger;
acquiring first calibrated engine oil pressure which is calibrated based on the basic calibrated engine oil pressure and is jointly required by a first altitude interval and the working condition of the engine, wherein the first altitude interval is higher than the plain altitude interval;
acquiring second calibration engine oil pressure which is calibrated based on the first calibration engine oil pressure and is jointly required by a second altitude interval and the working condition of the engine, wherein the second altitude interval is higher than the first altitude interval;
acquiring a third calibrated engine oil pressure which is calibrated based on the second calibrated engine oil pressure and is jointly required by a third altitude interval and the working condition of the engine, wherein the third altitude interval is higher than the second altitude interval;
and acquiring safe calibration engine oil pressure required by the combination of the calibrated highest altitude interval and the engine working condition, wherein the safe calibration engine oil pressure is obtained by calibrating the engine oil pressure based on the lowest requirement of the supercharger at the target supercharger rotating speed under the combination of the highest altitude interval and the engine working condition, and the highest altitude interval is higher than the third altitude interval.
In an exemplary embodiment of the present application, the current data acquisition module is configured to:
acquiring a current ambient pressure value detected by an ambient pressure sensor;
and converting the current ambient pressure value into the current altitude according to the mapping relation between the ambient pressure value and the altitude.
In an exemplary embodiment of the present application, the current data acquisition module is configured to:
acquiring the current crankshaft rotation speed detected by an engine rotation speed sensor;
and converting the current crankshaft rotating speed into the current engine working condition according to the mapping relation between the crankshaft rotating speed and the engine working condition.
An electronic device 30 according to an embodiment of the present application is described below with reference to fig. 10. The electronic device 30 shown in fig. 10 is merely an example, and should not be construed as limiting the functionality and scope of use of the embodiments herein.
As shown in fig. 10, the electronic device 30 is in the form of a general purpose computing device. Components of electronic device 30 may include, but are not limited to: the at least one processing unit 310, the at least one memory unit 320, and a bus 330 connecting the various system components, including the memory unit 320 and the processing unit 310.
Wherein the storage unit stores program code that is executable by the processing unit 310 such that the processing unit 310 performs the steps according to various exemplary embodiments of the present invention described in the description of the exemplary methods described above in this specification. For example, the processing unit 310 may perform the various steps as shown in fig. 1.
Storage unit 320 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 3201 and/or cache memory 3202, and may further include Read Only Memory (ROM) 3203.
The storage unit 320 may also include a program/utility 3204 having a set (at least one) of program modules 3205, such program modules 3205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 330 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 30 may also communicate with one or more external devices 400 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 30, and/or any device (e.g., router, modem, etc.) that enables the electronic device 30 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 350. An input/output (I/O) interface 350 is connected to the display unit 340. Also, electronic device 30 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 360. As shown, the network adapter 360 communicates with other modules of the electronic device 30 over the bus 330. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 30, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a usb disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present application.
In an exemplary embodiment of the present application, there is also provided a computer-readable storage medium having stored thereon computer-readable instructions, which, when executed by a processor of a computer, cause the computer to perform the method described in the method embodiment section above.
According to an embodiment of the present application, there is also provided a program product for implementing the method in the above method embodiments, which may employ a portable compact disc read only memory (CD-ROM) and comprise program code and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit, in accordance with embodiments of the present application. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Furthermore, although the various steps of the methods herein are depicted in the accompanying drawings in a particular order, this is not required to either suggest that the steps must be performed in that particular order, or that all of the illustrated steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
Claims (9)
1. An oil pump control method, characterized in that the method comprises:
acquiring calibrated engine oil pressure based on the combined requirements of an altitude interval and an engine working condition of supercharger rotation speed calibration;
acquiring the current altitude of the current environment of the engine and acquiring the current engine working condition of the engine;
searching target engine oil pressure jointly required by the current altitude and the current engine working condition in the calibrated engine oil pressure, and controlling an engine oil pump to work according to the target engine oil pressure;
the method for obtaining the calibrated engine oil pressure based on the combined requirements of the altitude interval and the working condition of the engine and calibrated by the rotating speed of the supercharger comprises the following steps:
obtaining basic calibration engine oil pressure matched with the rotating speed of the supercharger in a calibrated plain altitude interval;
acquiring the minimum engine oil pressure jointly required by the calibrated highest altitude interval and the working condition of the engine;
and acquiring the calibrated oil pressure based on the basic calibrated oil pressure and the minimum oil pressure.
2. The method of claim 1, wherein obtaining a minimum oil pressure demanded by the calibrated highest altitude interval in combination with the engine operating condition comprises:
acquiring a target supercharger speed detected by a supercharger speed sensor under the combined condition of the highest altitude interval and the engine working condition;
and taking the lowest-demand engine oil pressure of the supercharger with the target supercharger rotating speed as the lowest engine oil pressure.
3. The method of claim 1, wherein obtaining the calibrated oil pressure based on the base calibrated oil pressure and the minimum oil pressure comprises:
taking the basic calibration engine oil pressure as the calibration engine oil pressure which is jointly required by the plain altitude interval and the working condition of the engine;
and correcting the calibrated oil pressure required by the combination of the previous altitude interval and the engine working condition in sequence according to the sequence of the altitude interval from low to high to obtain the calibrated oil pressure required by the combination of the current altitude interval and the engine working condition until the lowest oil pressure is used as the calibrated oil pressure required by the combination of the highest altitude interval and the engine working condition.
4. The method of claim 1, wherein obtaining a calibrated oil pressure based on a supercharger speed calibration, the calibrated oil pressure being demanded by a combination of altitude intervals and engine operating conditions, comprises:
acquiring basic calibration engine oil pressure based on the combined requirements of a plain altitude interval and the working condition of the engine and calibrated by the rotating speed of the supercharger;
acquiring first calibrated engine oil pressure which is calibrated based on the basic calibrated engine oil pressure and is jointly required by a first altitude interval and the working condition of the engine, wherein the first altitude interval is higher than the plain altitude interval;
acquiring second calibration engine oil pressure which is calibrated based on the first calibration engine oil pressure and is jointly required by a second altitude interval and the working condition of the engine, wherein the second altitude interval is higher than the first altitude interval;
acquiring a third calibrated engine oil pressure which is calibrated based on the second calibrated engine oil pressure and is jointly required by a third altitude interval and the working condition of the engine, wherein the third altitude interval is higher than the second altitude interval;
and acquiring safe calibration engine oil pressure required by the combination of the calibrated highest altitude interval and the engine working condition, wherein the safe calibration engine oil pressure is obtained by calibrating the engine oil pressure based on the lowest requirement of the supercharger at the target supercharger rotating speed under the combination of the highest altitude interval and the engine working condition, and the highest altitude interval is higher than the third altitude interval.
5. The method of claim 1, wherein obtaining a current altitude of an environment in which the engine is currently located comprises:
acquiring a current ambient pressure value detected by an ambient pressure sensor;
and converting the current ambient pressure value into the current altitude according to the mapping relation between the ambient pressure value and the altitude.
6. The method of claim 1, wherein obtaining a current engine operating condition of the engine comprises:
acquiring the current crankshaft rotation speed detected by an engine rotation speed sensor;
and converting the current crankshaft rotating speed into the current engine working condition according to the mapping relation between the crankshaft rotating speed and the engine working condition.
7. An oil pump control device, characterized in that the device comprises:
the calibration data acquisition module is configured to acquire the calibrated engine oil pressure based on the combined requirements of the altitude interval and the engine working condition and calibrated by the rotating speed of the supercharger;
the current data acquisition module is configured to acquire the current altitude of the current environment of the engine and acquire the current engine working condition of the engine;
the searching control module is configured to search target engine oil pressure jointly required by the current altitude and the current engine working condition in the calibrated engine oil pressure and control an engine oil pump to work according to the target engine oil pressure;
the method for obtaining the calibrated engine oil pressure based on the combined requirements of the altitude interval and the working condition of the engine and calibrated by the rotating speed of the supercharger comprises the following steps:
obtaining basic calibration engine oil pressure matched with the rotating speed of the supercharger in a calibrated plain altitude interval;
acquiring the minimum engine oil pressure jointly required by the calibrated highest altitude interval and the working condition of the engine;
and acquiring the calibrated oil pressure based on the basic calibrated oil pressure and the minimum oil pressure.
8. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs which, when executed by the one or more processors, cause the electronic device to implement the method of any of claims 1 to 6.
9. A computer readable storage medium having stored thereon computer readable instructions which, when executed by a processor of a computer, cause the computer to perform the method of any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210858334.7A CN115263488B (en) | 2022-07-20 | 2022-07-20 | Oil pump control method and device, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210858334.7A CN115263488B (en) | 2022-07-20 | 2022-07-20 | Oil pump control method and device, electronic equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115263488A CN115263488A (en) | 2022-11-01 |
| CN115263488B true CN115263488B (en) | 2023-07-28 |
Family
ID=83767834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210858334.7A Active CN115263488B (en) | 2022-07-20 | 2022-07-20 | Oil pump control method and device, electronic equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115263488B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009156186A (en) * | 2007-12-27 | 2009-07-16 | Toyota Motor Corp | Lubricating device for internal combustion engine |
| CN105946846A (en) * | 2016-04-25 | 2016-09-21 | 北汽福田汽车股份有限公司 | Pump truck power matching control method and system |
| WO2016189653A1 (en) * | 2015-05-26 | 2016-12-01 | 日立建機株式会社 | Construction machine provided with preheating unit and method for preheating said machine |
| CN108386248A (en) * | 2018-01-29 | 2018-08-10 | 广州汽车集团股份有限公司 | A kind of engine oil method for controlling pump and device |
| CN110953035A (en) * | 2019-12-10 | 2020-04-03 | 潍柴动力股份有限公司 | Oil inlet pressure control method and device |
| CN112211693A (en) * | 2019-07-09 | 2021-01-12 | 广州汽车集团股份有限公司 | Engine electric control variable displacement engine oil pump control method and control device |
| CN112302817A (en) * | 2020-10-28 | 2021-02-02 | 中国第一汽车股份有限公司 | Fault diagnosis method, device, equipment and storage medium for air inlet pressure sensor |
| CN113339100A (en) * | 2020-02-18 | 2021-09-03 | 广州汽车集团股份有限公司 | Variable-displacement oil pump control method and variable-displacement oil pump control device |
| CN113464303A (en) * | 2021-08-17 | 2021-10-01 | 安徽江淮汽车集团股份有限公司 | Engine fuel pressure control method |
| CN113984395A (en) * | 2021-11-09 | 2022-01-28 | 中国人民解放军陆军军事交通学院 | double-VGT two-stage adjustable supercharged diesel engine variable-altitude simulation test system and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7756717B2 (en) * | 2002-02-05 | 2010-07-13 | General Electric Company | Lubricant management method for a vehicle |
| US6732521B2 (en) * | 2002-08-16 | 2004-05-11 | Toyota Jidosha Kabushiki Kaisha | Control system for a turbo-charged diesel aircraft engine |
| US7506724B2 (en) * | 2004-07-23 | 2009-03-24 | Honeywell International Inc. | Active gas turbine lubrication system flow control |
| US11156154B2 (en) * | 2015-12-09 | 2021-10-26 | Honda Motor Co., Ltd. | Internal combustion engine |
-
2022
- 2022-07-20 CN CN202210858334.7A patent/CN115263488B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009156186A (en) * | 2007-12-27 | 2009-07-16 | Toyota Motor Corp | Lubricating device for internal combustion engine |
| WO2016189653A1 (en) * | 2015-05-26 | 2016-12-01 | 日立建機株式会社 | Construction machine provided with preheating unit and method for preheating said machine |
| CN105946846A (en) * | 2016-04-25 | 2016-09-21 | 北汽福田汽车股份有限公司 | Pump truck power matching control method and system |
| CN108386248A (en) * | 2018-01-29 | 2018-08-10 | 广州汽车集团股份有限公司 | A kind of engine oil method for controlling pump and device |
| CN112211693A (en) * | 2019-07-09 | 2021-01-12 | 广州汽车集团股份有限公司 | Engine electric control variable displacement engine oil pump control method and control device |
| CN110953035A (en) * | 2019-12-10 | 2020-04-03 | 潍柴动力股份有限公司 | Oil inlet pressure control method and device |
| CN113339100A (en) * | 2020-02-18 | 2021-09-03 | 广州汽车集团股份有限公司 | Variable-displacement oil pump control method and variable-displacement oil pump control device |
| CN112302817A (en) * | 2020-10-28 | 2021-02-02 | 中国第一汽车股份有限公司 | Fault diagnosis method, device, equipment and storage medium for air inlet pressure sensor |
| CN113464303A (en) * | 2021-08-17 | 2021-10-01 | 安徽江淮汽车集团股份有限公司 | Engine fuel pressure control method |
| CN113984395A (en) * | 2021-11-09 | 2022-01-28 | 中国人民解放军陆军军事交通学院 | double-VGT two-stage adjustable supercharged diesel engine variable-altitude simulation test system and method |
Non-Patent Citations (2)
| Title |
|---|
| 一种大功率中速柴油机的高原适应性改进;戚元涛;张朝毅;芦宁;王玉冰;;内燃机与动力装置(06);第27-29页 * |
| 高压共轨柴油机高海拔全负荷标定;刘瑞林;周广猛;李骏;董素荣;周平;戈非;;燃烧科学与技术(03);第200-203页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115263488A (en) | 2022-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210264698A1 (en) | Apparatuses, systems, and methods for remotely capturing automotive vehicle diagnostic information, monitoring, and controlling | |
| CN113165533B (en) | Control device, power supply device, work machine, control method, and computer-readable recording medium | |
| CN110375888A (en) | Diagnostic method, device, vehicle and the storage medium of cooling-water temperature transmitter | |
| CN112283003A (en) | Ignition angle correction method, device, equipment and storage medium | |
| CN112818535B (en) | Method and device for establishing electrothermal simulation model and obtaining electrothermal simulation value | |
| CN109376173A (en) | A kind of data query method, apparatus, electronic equipment and storage medium | |
| CN115263488B (en) | Oil pump control method and device, electronic equipment and storage medium | |
| CN110905677B (en) | Fuel injection amount control method and equipment | |
| CN110541766B (en) | Range extender engine control method and device, vehicle and terminal | |
| CN111878231A (en) | Method, device and equipment for diagnosing faults of front oxygen sensor and storage medium | |
| EP2339545B1 (en) | USB non-volatile memory system for an electronic engine controller | |
| US11858647B2 (en) | Managing hydrogen fuel in hydrogen fuel cell-powered aircraft | |
| CN114614051B (en) | Fuel cell thermal management control method and device, medium and electronic equipment | |
| CN112052040A (en) | Processing method, processing device, computer equipment and storage medium | |
| US8494707B1 (en) | Maintaining a dynamic service registry for a self-diagnosing device | |
| CN113357067B (en) | Electric fuel pump control method and device, electronic equipment and storage medium | |
| CN114435273B (en) | Engine starting capability determining method and device, electronic equipment and storage medium | |
| CN111688697A (en) | Vehicle control method, device, equipment and storage medium | |
| CN117434872B (en) | Method and system for realizing acquisition of electric vehicle controller data based on Internet of things terminal | |
| US9501874B2 (en) | Extendable condition-based maintenance | |
| CN115972988A (en) | Power variable load limiting method, system, device and medium | |
| CN114592976B (en) | Compression ratio control method and device based on VCR engine and terminal equipment | |
| CN117559010A (en) | Power control device and method of energy storage system, storage medium and energy storage system | |
| WO2020121498A1 (en) | Control device, power supply device, operating machine, control method, and program | |
| CN116680095A (en) | Micro-service management method, micro-service management device, storage medium, and electronic apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |