CN116696578A - Engine control method, device, equipment and storage medium - Google Patents
Engine control method, device, equipment and storage medium Download PDFInfo
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- CN116696578A CN116696578A CN202310897029.3A CN202310897029A CN116696578A CN 116696578 A CN116696578 A CN 116696578A CN 202310897029 A CN202310897029 A CN 202310897029A CN 116696578 A CN116696578 A CN 116696578A
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 239000002245 particle Substances 0.000 claims abstract description 140
- 239000010705 motor oil Substances 0.000 claims abstract description 111
- 238000012937 correction Methods 0.000 claims abstract description 61
- 230000000694 effects Effects 0.000 claims abstract description 21
- 238000013507 mapping Methods 0.000 claims abstract description 21
- 239000003921 oil Substances 0.000 claims description 33
- 238000012545 processing Methods 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 5
- 239000013618 particulate matter Substances 0.000 description 13
- 238000004891 communication Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000010724 circulating oil Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/021—Engine temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/023—Temperature of lubricating oil or working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The application discloses a control method, a device, equipment and a storage medium of an engine, which relate to the field of engines, wherein the control method of the engine comprises the following steps: acquiring the current rotating speed of an engine and the current temperature of engine oil of the engine; determining a current initial friction torque value of the engine according to the current rotating speed and the current temperature and a preset mapping relation, wherein the mapping relation is used for representing the corresponding relation between the rotating speed of the engine, the temperature of engine oil and the initial friction torque value of the engine; according to a preset correction coefficient, correcting the current initial friction torque value to obtain corrected friction torque, wherein the correction coefficient is determined by the quantity of particles in engine oil; the engine is controlled based on the corrected friction torque. The application can optimize the control effect of the engine.
Description
Technical Field
The application belongs to the field of engines, and particularly relates to a control method, a device, equipment and a storage medium of an engine.
Background
An Engine (Engine) is a machine capable of converting other forms of energy into mechanical energy, including, for example, an internal combustion Engine (reciprocating piston Engine), an external combustion Engine (stirling Engine, steam Engine, etc.), a jet Engine, an electric motor, etc. In torque-based engine control, the cyclical injection of the engine may be calculated from the internal torque of the engine, which is required to be calculated from the friction torque of the engine. Therefore, accuracy in estimating the friction torque has an important influence on accurate control of the engine torque, smoothness of engine shift control, and the like. However, the friction torque of the engine varies due to factors such as mechanical wear of the engine and deterioration of the viscosity of the aged engine oil.
In the related art, when determining the friction torque of an engine, the friction torque of the engine is generally obtained by pulling the engine backward, and the data of the friction torque obtained in this way is generally present in a fixed MAP format. However, the fixed friction torque has large error, so that the error of the determined circulating oil injection quantity of the engine is also large, and the whole life cycle of the engine cannot be satisfied, thereby causing poor control effect of the engine.
Therefore, a scheme that can optimize the control effect of the engine is demanded.
Disclosure of Invention
The application provides a control method, a device, equipment and a storage medium of an engine, which are used for optimizing the control effect of the engine.
In a first aspect, the present application provides a control method of an engine, including: acquiring the current rotating speed of an engine and the current temperature of engine oil of the engine; determining a current initial friction torque value of the engine according to the current rotating speed, the current temperature and a preset mapping relation, wherein the mapping relation is used for representing the corresponding relation between the rotating speed of the engine, the temperature of engine oil and the initial friction torque value of the engine; carrying out correction processing on the current initial friction torque value according to a preset correction coefficient to obtain corrected friction torque, wherein the correction coefficient is determined by the quantity of particulate matters in engine oil; the engine is controlled based on the corrected friction torque.
In one embodiment, further comprising: acquiring the particle number of target particle size in the engine oil, the reference oil particle number of the engine oil, the rotating speed of the engine and the temperature of the engine oil; and fitting to obtain the correction coefficient based on the particle number of the target particle diameter, the reference engine oil particle number, the rotating speed of the engine and the temperature of the engine oil.
In one embodiment, the obtaining the number of particles of the target particle size in the engine oil includes: the method comprises the steps of sending a first message carrying the target particle size to a target sensor, wherein the target sensor is used for generating a pulse signal through the shading effect of particles in engine oil, and determining the number of the particles with different particle sizes according to the pulse width of the pulse signal; and receiving a second message from the target sensor, wherein the second message carries the particle number of the target particle size.
In one embodiment, the target sensor is disposed before an oil filter of the engine or the target sensor is disposed after the oil filter.
In one embodiment, the correcting the current initial friction torque value according to a preset correction coefficient to obtain a corrected friction torque includes: obtaining the product of the correction coefficient and the current initial friction torque value; and determining the product as the corrected friction torque.
In one embodiment, the map, the reference oil particle count, and the initial friction torque value of the engine are tested by an engine bench test.
In a second aspect, the present application also provides a control device of an engine, including: the acquisition module is used for acquiring the current rotating speed of the engine and the current temperature of engine oil of the engine; the determining module is used for determining a current initial friction torque value of the engine according to the current rotating speed, the current temperature and a preset mapping relation, wherein the mapping relation is used for representing the corresponding relation between the rotating speed of the engine, the temperature of engine oil and the initial friction torque value of the engine; the processing module is used for carrying out correction processing on the current initial friction torque value according to a preset correction coefficient to obtain corrected friction torque; and a control module for controlling the engine based on the corrected friction torque.
In a third aspect, the present application also provides an electronic device, including: a processor, and a memory coupled to the processor; the memory stores computer-executable instructions; the processor executes computer-executable instructions stored in the memory to implement the method of controlling an engine as described in the first aspect.
In a fourth aspect, the present application also provides a computer-readable storage medium having stored therein computer-executable instructions that, when executed, are adapted to carry out the method of controlling an engine according to the first aspect.
In a fifth aspect, the present application also provides a computer program product which, when executed, implements the method of controlling an engine according to the first aspect.
According to the control method, the device, the equipment and the storage medium of the engine, through the preset mapping relation between the rotating speed of the engine and the temperature of engine oil and the initial friction torque value of the engine, the current initial friction torque value of the engine can be determined according to the current rotating speed of the engine and the current temperature of the engine oil, and then the current initial friction torque value of the engine is corrected according to the predetermined correction coefficient of the friction torque of the engine. Since the particulate matter in the engine oil affects the friction torque of the engine, the correction coefficient can be determined based on the amount of the particulate matter in the engine oil, so that after the friction torque is corrected, the error of the corrected friction torque can be reduced, thereby optimizing the control effect of the engine.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of an application scenario of a control method of an engine according to an embodiment of the present application;
FIG. 2 is a flow chart of a control method of an engine according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a control device of an engine according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that, the user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or fully authorized by each party, and the collection, use and processing of the related data need to comply with the related laws and regulations and standards of the related country and region, and provide corresponding operation entries for the user to select authorization or rejection.
The terms involved in the present application will be explained first.
Friction torque: torque generated by friction between engine internal components, i.e., friction loss of the engine.
The related art mentioned in the background art has at least the following technical problems:
in the related art, the friction torque of the engine is usually obtained by pulling the engine backward, and the data of the friction torque obtained in this way is usually in a fixed MAP format. However, the fixed friction torque has large error, so that the error of the determined circulating oil injection quantity of the engine is also large, and the whole life cycle of the engine cannot be satisfied, thereby causing poor control effect of the engine.
Therefore, the application provides a control method of an engine, wherein the current initial friction torque value of the engine can be determined according to the current rotating speed of the engine and the current temperature of engine oil through the preset mapping relation between the rotating speed of the engine, the temperature of engine oil and the initial friction torque value of the engine, and then the current initial friction torque value of the engine is corrected according to the preset correction coefficient of the friction torque of the engine. Since the particulate matter in the engine oil affects the friction torque of the engine, the correction coefficient can be determined based on the amount of the particulate matter in the engine oil, so that after the friction torque is corrected, the error of the corrected friction torque can be reduced, thereby optimizing the control effect of the engine.
In one embodiment, the engine control method may be applied in an application scenario. Fig. 1 is a schematic view of an application scenario of a control method of an engine according to an embodiment of the present application, as shown in fig. 1, the control method of the engine may be applied to a control system of the engine, and the control system of the engine may include an electronic control unit (Electronic Control Unit, abbreviated as ECU) and the engine, where an oil filter and an oil particle number sensor are disposed in the engine, and the oil particle number sensor is disposed before the oil filter and is used for determining the number of oil particles before flowing through the oil filter.
In this application scenario, when engine oil flows through the engine oil particle quantity sensor that has the narrow passageway, the shading effect of particulate matter can make engine oil particle quantity sensor produce pulse signal, and engine oil particle quantity sensor can confirm the quantity of the granule of different particle diameters according to pulse width of pulse signal.
In the application scenario, if the number of particles above the target particle size needs to be measured, the ECU may send a message carrying the target particle size to the engine oil particle size sensor, and after the engine oil particle size sensor receives the message, measure the number of particles above the target particle size according to the target particle size in the message, and send the message carrying the number of particles to the ECU.
In the above application scenario, the ECU may determine the correction coefficient of the friction torque after receiving the number of particles equal to or larger than the target particle diameter. Alternatively, the reference oil particle number may be determined in advance according to the engine stand test, and then the correction coefficient may be determined according to the reference oil particle number, the particle number above the target particle diameter, the rotational speed of the engine, the temperature of the engine oil. The mapping relation between the engine speed and the engine oil temperature and the initial friction torque of the engine can also be determined in the engine bench test.
In the above application scenario, when the initial friction torque of the engine needs to be corrected subsequently, the current initial friction torque of the engine can be determined according to the current rotation speed of the engine and the current temperature of engine oil, and then the current initial friction torque of the engine is corrected by adopting the determined correction coefficient, so as to obtain the corrected friction torque. Therefore, the error of the corrected friction torque can be reduced, and the control effect of the engine can be further optimized when the engine is controlled according to the corrected friction torque.
In combination with the above scenario, the following describes in detail the technical scheme of the engine control method provided by the application through several specific embodiments.
The application provides a control method of an engine. Fig. 2 is a flow chart of a control method of an engine according to an embodiment of the present application, as shown in fig. 2, the method includes the following steps:
s201: the current rotational speed of the engine and the current temperature of the engine oil are obtained.
Specifically, the current rotation speed of the engine can be measured by a rotation speed sensor of the engine, and the current temperature of engine oil can be measured by a temperature sensor.
S202: and determining the current initial friction torque value of the engine according to the current rotating speed, the current temperature and the preset mapping relation.
Specifically, the map is used to represent the correspondence between the rotational speed of the engine and the temperature of the engine oil and the initial friction torque value of the engine.
Alternatively, different engine speeds and different engine oil temperatures may correspond to different initial friction torques, with a mapping between engine speeds, engine oil temperatures, and initial friction torque values of the engine. Therefore, after determining the current rotational speed of the engine and the current temperature of the engine oil, the current initial friction torque value of the engine can be determined according to the mapping relation.
Alternatively, the initial friction torque may be data in MAP format.
S203: and carrying out correction processing on the current initial friction torque value according to a preset correction coefficient to obtain corrected friction torque, wherein the correction coefficient is determined by the amount of particulate matters in engine oil.
Specifically, the number and the particle size of the particles in the engine oil can reflect the abrasion condition of the engine and the change of the quality of the engine oil, and the larger the particle size of the particles is, the larger the number is, the larger the influence on the quality of the engine oil is, so that the influence degree on the friction torque of the engine can be reflected by measuring the number of the particles in the unit volume of the engine oil. Thus, the correction coefficient may be determined by the amount of particulate matter in the engine oil.
In an alternative embodiment, the correction coefficient may be predetermined, so that when the current initial friction torque of the engine needs to be corrected, the current initial friction torque of the engine may be directly obtained, and then the current initial friction torque may be corrected according to the determined correction coefficient.
S204: the engine is controlled based on the corrected friction torque.
Specifically, since the correction coefficient is determined by the amount of particulate matter in the engine oil, the error of the corrected friction torque can be reduced after the current initial friction torque of the engine is corrected, so that the control effect of the engine can be optimized when the engine is controlled based on the corrected friction torque.
According to the control method of the engine, through the preset mapping relation between the rotating speed of the engine, the temperature of engine oil and the initial friction torque value of the engine, the current initial friction torque value of the engine can be determined according to the current rotating speed of the engine and the current temperature of the engine oil, and then the current initial friction torque value of the engine is corrected according to the predetermined correction coefficient of the friction torque of the engine. Since the particulate matter in the engine oil affects the friction torque of the engine, the correction coefficient can be determined based on the amount of the particulate matter in the engine oil, so that after the friction torque is corrected, the error of the corrected friction torque can be reduced, thereby optimizing the control effect of the engine.
In one embodiment, further comprising: acquiring the particle number of target particle size in engine oil, the reference oil particle number of the engine oil, the rotating speed of the engine and the temperature of the engine oil; and fitting to obtain a correction coefficient based on the particle number of the target particle size, the reference engine oil particle number, the rotating speed of the engine and the temperature of engine oil.
Specifically, multiple groups of data of different running mileage of the engine can be recorded to fit and obtain the correction coefficient of the friction torque, so that the error of the correction coefficient is reduced, and the accuracy of the correction coefficient is improved. For example, by fixing the rotational speed of the engine, the number of effective oil particles in this case is recorded and the friction torque at different oil temperatures is measured; or, by fixing the oil temperature, the effective oil particle count in this case is recorded and the friction torque at different engine speeds is measured. The number of particles of the effective engine oil is the number of particles of the target particle diameter or more, and in order to improve the accuracy of the correction coefficient of fitting, the number of particles of the target particle diameter or more may be determined in addition to the number of particles of the target particle diameter, and the number of particles of the target particle diameter or more are collectively referred to herein as the number of particles of the target particle diameter.
In an alternative embodiment, the correction factor may be fitted by the rotational speed of the engine, the temperature of the engine oil, the particle count of the target particle size, the reference oil particle count of the engine oil, the initial friction torque of the engine, the fixed oil temperature, or the friction torque measured at the engine speed. The correction coefficient obtained by the final fitting can be expressed by the following formula:
wherein fac is used for representing a correction coefficient, N is used for representing the rotation speed of an engine, T is used for representing the temperature of engine oil, M is used for representing the particle number of target particle size, M ref Reference oil particle count for indicating engine oil, a 1 And a 2 For representing functions related to N and T. Can update a according to N and T 1 And a 2 Is a function of (a). The initial friction torque of the engine, the fixed engine oil temperature or the friction torque measured at the engine speed only participates in the fitting process, and is not reflected in the fitting result.
Alternatively, the correction coefficient is obtained by fitting the number of particulate matters in the engine oil, and the error of the obtained correction coefficient can be reduced, so that the error of the corrected friction torque can be reduced, and therefore, the control effect of the engine can be optimized.
In one embodiment, obtaining a particle number of a target particle size in engine oil includes: the method comprises the steps of sending a first message carrying a target particle size to a target sensor, wherein the target sensor is used for generating a pulse signal through the shading effect of particles in engine oil, and determining the number of the particles with different particle sizes according to the pulse width of the pulse signal; and receiving a second message from the target sensor, wherein the second message carries the particle number of the target particle size.
Specifically, the target sensor may also be referred to as an engine oil particle number sensor, which is an intelligent sensor that can monitor the amount of particles in engine oil. When engine oil flows through a target sensor with a narrow channel, the target sensor can generate pulse signals due to the shading effect of particles in the oil, and the target sensor can determine the number of the particles with different particle sizes according to the pulse width of the pulse signals.
Alternatively, the ECU and the target sensor may interact through messages. When the number of particles with the target particle size in engine oil is obtained, the ECU can send a first message carrying the target particle size to the target sensor, the target sensor can measure the number of particles with the target particle size and above after receiving the first message, the number is sent to the ECU in a message form, and the ECU can determine the number of the particles with the target particle size and above after receiving the second message. The message format can be 1939 message, or a message format pre-agreed by the ECU and the target sensor.
Alternatively, the correction coefficient may be fitted by the amount of particulate matter in the engine oil, and the error of the obtained correction coefficient may be reduced, so that the error of the corrected friction torque may be reduced, and thus the control effect of the engine may be optimized.
In one embodiment, the target sensor is disposed before an oil filter of the engine or the target sensor is disposed after the oil filter.
Specifically, the engine oil filter of the engine can filter out certain particle size particles in the flowing engine oil, so as to achieve the aim of improving the quality of the engine oil. However, the particle sizes of the particles in the engine oil are different, the engine oil filter can only filter out some particles with larger particle sizes, and for some particles with small particle sizes, the particles still exist in the engine oil to affect the quality of the engine oil. Therefore, it is still necessary to monitor the amount of particulate matter of the target particle diameter in the engine oil by the target sensor to fit the correction coefficient.
In an alternative embodiment, the target sensor may be located before the oil filter. In this case, the number of particles that the target sensor needs to measure may be large, but a larger number of particles may make the measurement result more reliable.
In an alternative embodiment, the target sensor may also be arranged after the oil filter. In this case, the amount of particulate matter that the target sensor needs to measure is small, and therefore, the measurement efficiency of the target sensor can be improved.
In one embodiment, the correcting process is performed on the current initial friction torque value according to a preset correction coefficient to obtain a corrected friction torque, including: obtaining the product of the correction coefficient and the current initial friction torque value; the product is determined as the corrected friction torque.
Specifically, the formula for determining the corrected friction torque can be expressed as follows:
T＝fac*Tr
where T is used to represent the corrected friction torque and Tr is used to represent the current initial friction torque value.
Alternatively, the error of the correction coefficient can be reduced by fitting the number of particulate matters in the engine oil to the obtained correction coefficient, so that the error of the corrected friction torque can be reduced, and therefore, the control effect of the engine can be optimized.
In one embodiment, the map, the reference oil particle count, and the initial friction torque value of the engine are tested by an engine bench test.
Specifically, the engine test stand is a physical performance testing instrument for engine performance testing. The engine test bed can be used for carrying out an engine bed test, so that the initial friction torque MAP of the engine and the reference engine oil particle number of the engine are determined, and the efficiency of fitting the correction coefficient is improved.
Alternatively, the mapping relationship between the engine speed and the temperature of the engine oil and the initial friction torque can be determined by fixing the engine speed and measuring the initial friction torque at different engine oil temperatures, or the mapping relationship between the engine speed and the temperature of the engine oil and the initial friction torque can be determined by fixing the engine oil temperature and measuring the initial friction torque at different engine speeds, so that the efficiency of correcting the friction torque is improved.
According to the engine control method, the quantity of the particulate matters in the unit volume of engine oil is measured to reflect the influence degree on the friction torque, so that the correction coefficient of the friction torque is fitted, the friction torque is corrected according to the correction coefficient obtained by fitting, and therefore errors of the measured friction torque can be reduced, and the control effect of the engine is optimized.
The embodiment of the application also provides a control device of the engine. Fig. 3 is a schematic structural diagram of a control device of an engine according to an embodiment of the present application, and as shown in fig. 3, a control device 300 of the engine includes:
an obtaining module 301, configured to obtain a current rotation speed of an engine and a current temperature of engine oil;
the determining module 302 is configured to determine a current initial friction torque value of the engine according to a current rotational speed and a current temperature, and a preset mapping relationship, where the mapping relationship is used to represent a correspondence between the rotational speed of the engine, the temperature of engine oil, and the initial friction torque value of the engine;
the processing module 303 is configured to perform correction processing on the current initial friction torque value according to a preset correction coefficient, so as to obtain a corrected friction torque;
the control module 304 is configured to control the engine based on the corrected friction torque.
Optionally, the control device 300 of the engine further includes: a fitting module (not shown) for obtaining a number of particles of a target particle size in engine oil, a reference oil particle number of the engine oil, a rotational speed of the engine, and a temperature of the engine oil; and fitting to obtain a correction coefficient based on the particle number of the target particle size, the reference engine oil particle number, the rotating speed of the engine and the temperature of engine oil.
Optionally, the fitting module is specifically configured to, when acquiring the number of particles of the target particle size in the engine oil: the method comprises the steps of sending a first message carrying a target particle size to a target sensor, wherein the target sensor is used for generating a pulse signal through the shading effect of particles in engine oil, and determining the number of the particles with different particle sizes according to the pulse width of the pulse signal; and receiving a second message from the target sensor, wherein the second message carries the particle number of the target particle size.
Optionally, the target sensor is disposed before an oil filter of the engine, or the target sensor is disposed after the oil filter.
Optionally, the processing module 303 is specifically configured to, when performing correction processing on the current initial friction torque value according to a preset correction coefficient to obtain a corrected friction torque: obtaining the product of the correction coefficient and the current initial friction torque value; the product is determined as the corrected friction torque.
Alternatively, the map, the reference oil particle count, and the initial friction torque value of the engine are tested by an engine bench test.
The control device of the engine provided in this embodiment is configured to execute the technical scheme of the control method of the engine in the foregoing method embodiment, and its implementation principle and technical effect are similar, and are not described herein again.
The embodiment of the application also provides electronic equipment. Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device may be provided as a computer, such as the ECU described above, for example. Referring to fig. 4, an electronic device 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input/output interface 412, a sensor component 414, and a communication component 416. The input/output interface 412 may also be referred to as an I/O interface 412.
The processing component 402 generally controls overall operation of the electronic device 400, such as operations associated with display, data communication, recording operations, and the like. The processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 402 can include one or more modules that facilitate interaction between the processing component 402 and other components. For example, the processing component 402 may include a multimedia module to facilitate interaction between the multimedia component 408 and the processing component 402.
The memory 404 is configured to store various types of data to support operations at the electronic device 400. Examples of such data include instructions for any application or method operating on electronic device 400, particle size data for particulate matter, particle count data, messages, and so forth. The memory 404 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply component 406 provides power to the various components of the electronic device 400. The power components 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 400.
The multimedia component 408 includes a screen between the electronic device 400 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel.
The audio component 410 is configured to output and/or input audio signals. For example, the audio component 410 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 400 is in an operational mode, such as a recording mode and a speech recognition mode. The received audio signals may be further stored in the memory 404 or transmitted via the communication component 416. In some embodiments, audio component 410 further includes a speaker for outputting audio signals.
The I/O interface 412 provides an interface between the processing component 402 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 414 includes one or more sensors for providing status assessment of various aspects of the electronic device 400. For example, the sensor assembly 414 may detect an on/off state of the electronic device 400, a relative positioning of the components, such as a display and keypad of the electronic device 400, the sensor assembly 414 may also detect a change in position of the electronic device 400 or a component of the electronic device 400, the presence or absence of a user's contact with the electronic device 400, and a change in temperature of the electronic device 400.
The communication component 416 is configured to facilitate communication between the electronic device 400 and other devices, either wired or wireless. The electronic device 400 may access a wireless network based on a communication standard, such as WiFi,4G, or 5G, or a combination thereof. In one exemplary embodiment, the communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, such as memory 404, that includes instructions executable by processor 420 of electronic device 400 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
A non-transitory computer readable storage medium, which when executed by the processor 420 of the electronic device 400, enables the electronic device 400 to perform the engine control method described above.
The embodiment of the application also provides a computer readable storage medium, which comprises computer execution instructions, wherein the computer execution instructions are used for realizing the technical scheme of the control method of the engine provided in the method embodiment when being executed.
The embodiment of the application also provides a computer program product, which comprises a computer program, wherein the computer program is used for realizing the technical scheme of the control method of the engine provided in the method embodiment when being executed.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application 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.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A control method of an engine, characterized by comprising:
acquiring the current rotating speed of an engine and the current temperature of engine oil of the engine;
determining a current initial friction torque value of the engine according to the current rotating speed, the current temperature and a preset mapping relation, wherein the mapping relation is used for representing the corresponding relation between the rotating speed of the engine, the temperature of engine oil and the initial friction torque value of the engine;
carrying out correction processing on the current initial friction torque value according to a preset correction coefficient to obtain corrected friction torque, wherein the correction coefficient is determined by the quantity of particulate matters in engine oil; the engine is controlled based on the corrected friction torque.
2. The control method of an engine according to claim 1, characterized by further comprising:
acquiring the particle number of target particle size in the engine oil, the reference oil particle number of the engine oil, the rotating speed of the engine and the temperature of the engine oil;
and fitting to obtain the correction coefficient based on the particle number of the target particle diameter, the reference engine oil particle number, the rotating speed of the engine and the temperature of the engine oil.
3. The method for controlling an engine according to claim 2, wherein the obtaining the number of particles of the target particle diameter in the engine oil includes:
the method comprises the steps of sending a first message carrying the target particle size to a target sensor, wherein the target sensor is used for generating a pulse signal through the shading effect of particles in engine oil, and determining the number of the particles with different particle sizes according to the pulse width of the pulse signal;
and receiving a second message from the target sensor, wherein the second message carries the particle number of the target particle size.
4. A control method of an engine according to claim 3, characterized in that the target sensor is provided before an oil filter of the engine or the target sensor is provided after the oil filter.
5. The control method of an engine according to any one of claims 1 to 4, characterized in that the correcting process is performed on the current initial friction torque value according to a preset correction coefficient to obtain a corrected friction torque, comprising:
obtaining the product of the correction coefficient and the current initial friction torque value;
and determining the product as the corrected friction torque.
6. The control method of an engine according to any one of claims 2 to 4, characterized in that the map, the reference oil particle count, and the initial friction torque value of the engine are obtained by an engine bench test.
7. A control device of an engine, characterized by comprising:
the acquisition module is used for acquiring the current rotating speed of the engine and the current temperature of engine oil of the engine;
the determining module is used for determining a current initial friction torque value of the engine according to the current rotating speed, the current temperature and a preset mapping relation, wherein the mapping relation is used for representing the corresponding relation between the rotating speed of the engine, the temperature of engine oil and the initial friction torque value of the engine;
the processing module is used for carrying out correction processing on the current initial friction torque value according to a preset correction coefficient to obtain corrected friction torque;
and a control module for controlling the engine based on the corrected friction torque.
8. The control device of an engine according to claim 7, characterized by further comprising:
the fitting module is used for acquiring the particle number of the target particle size in the engine oil, the reference engine oil particle number of the engine oil, the rotating speed of the engine and the temperature of the engine oil; and fitting to obtain the correction coefficient based on the particle number of the target particle diameter, the reference engine oil particle number, the rotating speed of the engine and the temperature of the engine oil.
9. An electronic device, comprising: a processor, and a memory coupled to the processor;
the memory stores computer-executable instructions;
the processor executes the computer-executable instructions stored in the memory to implement the control method of the engine according to any one of claims 1 to 6.
10. A computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, which when executed are adapted to implement the method of controlling an engine according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310897029.3A CN116696578A (en) | 2023-07-20 | 2023-07-20 | Engine control method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310897029.3A CN116696578A (en) | 2023-07-20 | 2023-07-20 | Engine control method, device, equipment and storage medium |
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| Publication Number | Publication Date |
|---|---|
| CN116696578A true CN116696578A (en) | 2023-09-05 |
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| CN202310897029.3A Pending CN116696578A (en) | 2023-07-20 | 2023-07-20 | Engine control method, device, equipment and storage medium |
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| Country | Link |
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| CN (1) | CN116696578A (en) |
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2023
- 2023-07-20 CN CN202310897029.3A patent/CN116696578A/en active Pending
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