CN116537910A - Control method and system for engine oil capacity and temperature - Google Patents

Control method and system for engine oil capacity and temperature Download PDF

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Publication number
CN116537910A
CN116537910A CN202310350901.2A CN202310350901A CN116537910A CN 116537910 A CN116537910 A CN 116537910A CN 202310350901 A CN202310350901 A CN 202310350901A CN 116537910 A CN116537910 A CN 116537910A
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CN
China
Prior art keywords
engine oil
temperature
engine
oil
pan
Prior art date
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Pending
Application number
CN202310350901.2A
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Chinese (zh)
Inventor
李晖
刘杰
杜长刚
于佃义
刘英超
张波
李永刚
辛志�
陈竞泽
吴国涛
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Priority to CN202310350901.2A priority Critical patent/CN116537910A/en
Publication of CN116537910A publication Critical patent/CN116537910A/en
Pending legal-status Critical Current

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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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M11/0458—Lubricant filling and draining
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/10—Indicating devices; Other safety devices
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/10—Indicating devices; Other safety devices
    • F01M11/12—Indicating devices; Other safety devices concerning lubricant level
    • 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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/001—Heating
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/10—Indicating devices; Other safety devices
    • F01M2011/14—Indicating devices; Other safety devices for indicating the necessity to change the oil
    • F01M2011/1473—Indicating devices; Other safety devices for indicating the necessity to change the oil by considering temperature
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

The invention belongs to the technical field of engine control, and provides a control method and a system for engine oil capacity and temperature, wherein when engine oil is automatically replenished and extracted, the temperature of engine oil to be replenished is regulated according to the temperature of engine oil in an engine oil pan, the oil temperature of the newly replenished engine oil is considered, so that the temperature of the engine oil newly replenished to the engine oil pan is the same as the temperature of the original engine oil in the engine oil pan or the temperature difference is smaller, the problem that the temperature of the engine oil in the engine oil pan suddenly changes due to the newly replenished engine oil is avoided, and the normal operation of an engine is ensured; meanwhile, the flow of the engine oil is regulated according to the liquid level of the engine oil in the engine oil pan, so that the problem that the engine oil supplementing speed is too slow and not timely is avoided, the problem that the engine oil is not timely extracted when the liquid level of the engine oil in the engine oil pan is higher is also avoided, and the influence on the normal operation of an engine is reduced.

Description

Control method and system for engine oil capacity and temperature
Technical Field
The invention belongs to the technical field of engine control, and particularly relates to a method and a system for controlling engine oil capacity and temperature.
Background
The engine oil consumption is inevitable in the running process of the engine, the engine oil in the engine is easy to be insufficient when the engine oil consumption is excessive, and the engine is easy to be damaged when the engine oil is insufficient; and too much engine oil or diesel oil and antifreeze liquid enter the oil pan due to fault reasons, so that when the liquid level of the oil pan is increased, the pressure of a crankcase is increased, the power is insufficient, and even serious engine faults such as cylinder pulling, tile melting and the like can occur. Therefore, it is necessary to detect the oil level in the engine, control the oil level according to the actual operating condition of the engine, and realize the detection of the quality of the oil.
The inventor finds that in the existing control method for automatically supplementing the engine oil based on the liquid level detection, when the oil tank is used for automatically supplementing the engine oil to the engine oil pan, the oil temperature of the newly-supplemented engine oil is not considered, so that the difference between the temperature of the engine oil newly-supplemented to the engine oil pan and the temperature of the original engine oil in the engine oil pan is larger, the temperature of the engine oil in the engine oil pan suddenly changes, and the normal operation of the engine can be influenced by the too high or the too low temperature of the engine oil after the sudden change of the temperature; in addition, in the automatic engine oil supplementing process, an oil supply mode with constant flow is adopted, so that the problem that the engine oil supplementing speed is too slow and not timely is caused, the problem that the engine oil is not timely extracted when the oil liquid level is high is caused, and the problem of delay of engine oil liquid level control seriously affects the normal operation of an engine.
Disclosure of Invention
In order to solve the problems, the invention provides a method and a system for controlling the engine oil capacity and the temperature, which realize the control of the temperature and the flow of the engine oil to be supplemented, solve the problem of sudden change of the engine oil temperature in an engine oil pan, solve the problems of engine oil supplementing and engine oil extraction delay, and ensure the working stability of an engine.
In order to achieve the above object, the present invention is realized by the following technical scheme:
in a first aspect, the present invention provides a method for controlling engine oil capacity and temperature, comprising:
acquiring the temperature and the liquid level of engine oil in an engine oil pan;
according to the comparison between the liquid level of engine oil in the engine oil pan and a preset calibration value, the engine oil is automatically replenished or automatically extracted; before automatic engine oil replenishment, regulating the temperature of engine oil to be replenished according to the temperature of engine oil in an engine oil pan; when the automatic replenishment or automatic extraction of the engine oil is performed, the flow rate of the replenished engine oil or the extracted engine oil is adjusted according to the liquid level of the engine oil in the engine oil pan.
Further, the oil product to be supplemented with the engine oil is detected, and early warning is carried out when the quality of the engine oil to be supplemented is reduced or the engine oil is polluted, so that the rotating speed and the torque of the engine are reduced.
Further, the preset calibration value is a preset range value; when the oil level in the engine oil pan is smaller than the minimum value of the preset range value, the engine oil is automatically replenished; when the oil level in the engine oil pan is greater than the maximum value of the preset range value, the engine oil is automatically extracted; when the oil level in the engine oil pan is within a preset range, automatic replenishment and automatic extraction of oil are not performed.
Further, a change rule of the temperature of the engine oil in the engine oil pan in a preset time period before the current moment is determined, and when the liquid level of the engine oil in the engine oil pan is in a descending trend and the change rate of the temperature in the preset time period is larger than a preset value, the temperature of the engine oil to be supplemented is adjusted in advance.
Further, the oil liquid levels at a plurality of positions in the engine oil pan are obtained, and the average value of the oil liquid levels at the plurality of positions is taken as the oil liquid level in the engine oil pan.
Further, detecting the temperature of the side wall of the engine oil pan, and determining a boundary line with the largest temperature difference; and judging whether the boundary line is overlapped with the liquid level of the engine oil in the final engine oil pan, if so, determining the liquid level of the engine oil in the engine oil pan as the final determined liquid level, otherwise, continuing to detect the liquid level and the temperature to carry out re-judgment.
Further, before automatic engine oil replenishment, the temperature of engine oil to be replenished is regulated to be equal to the temperature of engine oil in an engine oil pan; when the automatic replenishment of the engine oil is carried out, if the liquid level of the engine oil in the engine oil pan is lower than a first preset value, the replenishment flow rate of the engine oil is increased; when the automatic extraction of the engine oil is carried out, if the liquid level of the engine oil in the engine oil pan is higher than a second preset value, the oil extraction flow is increased; the first preset value is smaller than the second preset value.
In a second aspect, the present invention also provides a control system for engine oil capacity and temperature, comprising:
a data acquisition module configured to: acquiring the temperature and the liquid level of engine oil in an engine oil pan;
a control module configured to: according to the comparison between the liquid level of engine oil in the engine oil pan and a preset calibration value, the engine oil is automatically replenished or automatically extracted; before automatic engine oil replenishment, regulating the temperature of engine oil to be replenished according to the temperature of engine oil in an engine oil pan; when the automatic replenishment or automatic extraction of the engine oil is performed, the flow rate of the replenished engine oil or the extracted engine oil is adjusted according to the liquid level of the engine oil in the engine oil pan.
In a third aspect, the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the engine oil capacity and temperature control method of the first aspect.
In a fourth aspect, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method for controlling engine oil capacity and temperature of the first aspect when executing the program.
Compared with the prior art, the invention has the beneficial effects that:
1. when the engine oil is automatically replenished and extracted, the temperature of the engine oil to be replenished is regulated according to the temperature of the engine oil in the engine oil pan, the oil temperature of the newly replenished engine oil is considered, the temperature of the engine oil newly replenished to the engine oil pan is the same as the temperature of the original engine oil in the engine oil pan or the temperature difference is smaller, the problem that the engine oil temperature in the engine oil pan suddenly changes due to the newly replenished engine oil is avoided, and the normal operation of an engine is ensured; meanwhile, the flow of the replenishing or extracting engine oil is regulated according to the liquid level of the engine oil in the engine oil pan, so that the problem that the engine oil replenishing speed is too slow and not timely is avoided, the problem that the engine oil is not timely extracted when the liquid level of the engine oil in the engine oil pan is higher is also avoided, and the influence on the normal operation of the engine is reduced;
2. the invention realizes the closed-loop control of the engine oil capacity and temperature, monitors the engine oil quality in real time, has strong universality, can realize the reduction or even the elimination of an engine oil cooling system of an engine body, reduces the potential safety hazard of engine damage, and improves the reliability of the engine.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification, illustrate and explain the embodiments and together with the description serve to explain the embodiments.
FIG. 1 is a schematic diagram of a system according to embodiment 1 of the present invention;
FIG. 2 is the engine oil level control logic of example 1 of the present invention;
fig. 3 is an engine oil temperature control logic of example 1 of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Lubrication system: the surface of the moving part is lubricated, so that friction resistance is reduced; cleaning the friction surface to take away grinding scraps and foreign matters; the heat generated by the friction pair is taken away by the lubrication system, so that the lubrication system plays a role in cooling, and meanwhile, an oil film is formed between moving parts, so that the tightness is improved.
Example 1:
aiming at the problems that the oil temperature of the newly replenished engine oil and the oil supply mode adopting constant flow rate are not considered in the existing control method for automatically replenishing the engine oil, the embodiment provides a control method for the engine oil capacity and the temperature, which comprises the following steps:
acquiring the temperature and the liquid level of engine oil in an engine oil pan;
according to the comparison between the liquid level of engine oil in the engine oil pan and a preset calibration value, the engine oil is automatically replenished or automatically extracted; before automatic engine oil replenishment, regulating the temperature of engine oil to be replenished according to the temperature of engine oil in an engine oil pan; when the automatic replenishment or automatic extraction of the engine oil is performed, the flow rate of the replenished engine oil or the extracted engine oil is adjusted according to the liquid level of the engine oil in the engine oil pan.
Alternatively, the temperature and the liquid level information of the engine oil in the engine oil pan can be obtained through a liquid level sensor, a temperature sensor and the like arranged in the engine oil pan; the oil storage tank can be arranged, and a bidirectional constant delivery pump is arranged on a pipeline between the oil storage tank and the engine oil pan to realize the supplement and extraction of engine oil; a flowmeter can be arranged on a pipeline between the oil storage tank and the engine oil pan to assist in detecting and adjusting the flow during oil replenishment or oil extraction; the temperature of the engine oil to be replenished can be regulated by arranging a heater or a heat exchanger and other devices on the oil storage tank.
Optionally, before automatic engine oil replenishment, the temperature of engine oil to be replenished is adjusted to be equal to the temperature of engine oil in an engine oil pan; when the automatic replenishment of the engine oil is carried out, if the liquid level of the engine oil in the engine oil pan is lower than a first preset value, the replenishment flow rate of the engine oil is increased; when the automatic extraction of the engine oil is carried out, if the liquid level of the engine oil in the engine oil pan is higher than a second preset value, the oil extraction flow is increased; the first preset value is smaller than the second preset value.
Specifically, when the automatic replenishment and extraction of the engine oil are carried out, the temperature of the engine oil to be replenished is regulated according to the temperature of the engine oil in the engine oil pan, the oil temperature of the newly replenished engine oil is considered, the temperature of the engine oil newly replenished to the engine oil pan is the same as the temperature of the original engine oil in the engine oil pan or the temperature difference is smaller, the problem that the temperature of the engine oil in the engine oil pan suddenly changes due to the newly replenished engine oil is avoided, and the normal operation of an engine is ensured; meanwhile, the flow of the engine oil is regulated according to the liquid level of the engine oil in the engine oil pan, so that the problem that the engine oil supplementing speed is too slow and not timely is avoided, the problem that the engine oil is not timely extracted when the liquid level of the engine oil in the engine oil pan is higher is also avoided, and the influence on the normal operation of an engine is reduced.
When the oil level of the oil pan is increased due to excessive oil or diesel oil and antifreeze solution entering the oil pan due to fault, besides the increase of the oil level, the diesel oil and the antifreeze solution pollute the oil, so that the oil product to be supplemented with the oil is detected, and early warning is carried out when the quality of the oil to be supplemented is reduced or the oil is polluted, so that the rotating speed and the torque of an engine are reduced; and the influence on the operation of the engine caused by the quality reduction of the engine oil or the pollution of the engine oil is avoided.
The preset calibration value is a preset range value; when the oil level in the engine oil pan is smaller than the minimum value of the preset range value, the engine oil is automatically replenished; when the oil level in the engine oil pan is greater than the maximum value of the preset range value, the engine oil is automatically extracted; when the oil level in the engine oil pan is within a preset range, automatic replenishment and automatic extraction of oil are not performed. When engine oil is replenished, when the oil level in the engine oil pan is received to be smaller than the minimum value of the preset range value and automatic replenishment of the engine oil is needed, if the temperature of the engine oil to be replenished is unequal to or larger than the temperature of the engine oil in the engine oil pan, the engine oil to be replenished is required to be heated or cooled, the whole engine oil replenishing time is prolonged in the temperature regulation process, the regulation efficiency is influenced, the internal power of the engine is damaged, the engine oil burning fault is generated, the engine cylinder is pulled, the contact parts of the bearing and the journal and the like are poor in lubrication, the abrasion is aggravated, and even the faults such as a burn tile, a shaft and the like are caused; in order to solve the problem that the oil replenishment time is too long, in this embodiment, a change rule of the oil temperature in the engine oil sump in a preset time period before the current moment is determined, when the oil level in the engine oil sump is in a descending trend and the change rate of the temperature in the preset time period is larger than a preset value, the oil to be replenished is subjected to temperature regulation in advance, so that when the oil replenishment is needed, the oil temperature to be replenished is equal to or less than the oil temperature in the engine oil sump, the oil to be replenished does not need to be subjected to temperature regulation again, the whole control market is reduced, and the safe operation of the engine is ensured.
When the engine oil liquid level is detected, the engine oil liquid levels at a plurality of positions in the engine oil pan can be obtained through the electronic oil rule, and the average value of the engine oil liquid levels at the plurality of positions is taken as the liquid level of the engine oil in the engine oil pan, so that the accuracy of engine oil liquid level detection is improved.
In the actual working process of the engine, particularly the engine with serious vibration in the working process of a large engine or a diesel engine, the liquid level is continuously changed due to vibration in the working process, and at the moment, the liquid level is detected, so that the problem of inaccurate detection caused by the influence of vibration exists; in order to solve the problem of inaccurate liquid level detection caused by vibration of an engine, in addition to adopting a measure of taking an average value of oil liquid levels at a plurality of positions as the liquid level of engine oil in an engine oil pan, in the embodiment, the temperature of the side wall of the engine oil pan is detected, and a boundary line with the largest temperature difference is determined; judging whether the boundary line is coincident with the liquid level of the engine oil in the final engine oil pan, if so, determining the liquid level of the engine oil in the engine oil pan as the final determined liquid level, otherwise, continuing to detect the liquid level and the temperature to re-judge; on the side wall of the engine oil pan, the boundary line between engine oil and air has obvious temperature change phenomenon because the engine oil temperature is generally higher, and the boundary line with determined temperature is used for judging and correcting the engine oil liquid level, so that the problem of inaccurate liquid level detection caused by the vibration of the engine is solved, and the detection precision of the engine oil liquid level is improved.
In order to further explain the control method of the engine oil capacity and temperature, as shown in fig. 1 and 2, in some embodiments, a control system of the engine oil capacity and temperature is further provided, optionally, according to the obtained real-time data of the operation condition of the engine, the liquid level of the electronic dipstick and the lubrication system, the standard quantity of the engine ECU data is judged through the temperature model and the MAP of the calibrated liquid level of the engine oil, and the upper and lower safe liquid levels of the engine oil and the upper and lower upper limits of the engine oil temperature of the current operation condition of the engine are judged.
When the engine leaks and consumes engine oil or the liquid level of the engine oil is abnormally increased due to a certain fault reason, the ECU carries out bidirectional control on the bidirectional constant delivery pump by controlling MAP and PID according to logic judgment, and engine oil is automatically supplemented and extracted, so that the closed-loop control of the liquid level of the engine oil is realized under different working conditions of the engine.
And a flowmeter is arranged in the engine oil pipeline, and the filling and extracting flow of engine oil is fed back to the engine ECU, so that the monitoring and recording of the system state and flow are realized. The oil storage tank is provided with a liquid level sensor, a temperature sensor and an engine oil quality sensor. And reading the engine oil pressure and temperature of the main oil duct of the engine, the temperature and the liquid level of the oil storage tank, and carrying out logic operation on the engine according to the temperature model and the set values of the engine oil temperature under different calibrated working conditions. The oil storage tank is externally connected with a heat exchanger and an electric heating system and is controlled by a temperature regulating device. A unidirectional constant displacement pump is arranged between the heat exchanger and the oil storage tank.
When the engine is started, the ECU starts the unidirectional constant delivery pump when the actual temperature of the engine oil is lower than the calibrated target temperature, and the temperature regulating device is electrically heated through the PID and the control MAP, so that the accelerated preheating of the engine oil is realized. On the contrary, when the actual temperature of the oil is higher than the calibrated target temperature, the unidirectional constant displacement pump is controlled to start, the proportional three-way valve of the heat exchanger is regulated through the PID and the MAP, and the water flow rate entering the heat exchanger is controlled, so that the engine oil is cooled. The temperature regulating device controls the unidirectional constant delivery pump, the electric heating system and the water inlet and outlet proportion three-way valve of the heat exchanger to realize the control of target temperature.
The oil quality sensor of the oil storage tank feeds the oil quality condition back to the engine ECU to realize real-time monitoring of the oil quality, and when the oil quality of the engine is reduced or the oil is polluted due to failure reasons, the ECU judges the quality state of the engine oil through the oil quality sensor to perform early warning, and limits the engine rotating speed, torque and even stop.
The ECU feeds back the working state of the system, the working state of the temperature regulating device, the condition of the engine oil liquid level and the alarm to the instrument, so that visualization is realized.
Acquiring real-time working condition data of an engine, and judging the upper and lower safety limit liquid level and the upper and lower temperature limit of engine oil of the current running working condition of the engine; and (3) automatically supplementing and extracting engine oil of the engine through data calibration of the ECU, and automatically controlling the engine oil. The closed-loop control of the liquid level and the temperature of the engine oil is realized. The universality of the oil capacity and oil temperature accurate control technology can detect the oil quality condition of an engine in real time, reduce potential safety hazards which easily cause the damage of the engine, and can realize the reduction and even the cancellation of an engine oil cooling system of an engine body.
At present, during conventional maintenance, new engine oil is manually added from the position of the main engine corresponding to the oil filling port, and the liquid level of the engine oil is checked through an oil level gauge. The prior operation of filling engine oil mainly has the following defects: part of engine oil is easy to drop in the engine in the process of replacing engine oil, so that related pollution and matched cleaning work are caused; the liquid level condition is checked through the oil level gauge for multiple times, and the error and timeliness problem are easy to exist in manual operation; 3) Additional manual maintenance and replacement man-hours are caused; in the high-low temperature state, the engine oil can only be heated and cooled by the engine body. The control method for the engine oil capacity and the temperature improves the universality of an oil liquid level detection technology and an automatic engine oil supplementing technology, realizes closed-loop control of the engine oil capacity and the temperature, and reduces potential safety hazards which easily cause engine damage.
Example 2:
the embodiment provides a control system for engine oil capacity and temperature, comprising:
a data acquisition module configured to: acquiring the temperature and the liquid level of engine oil in an engine oil pan;
a control module configured to: according to the comparison between the liquid level of engine oil in the engine oil pan and a preset calibration value, the engine oil is automatically replenished or automatically extracted; before automatic engine oil replenishment, regulating the temperature of engine oil to be replenished according to the temperature of engine oil in an engine oil pan; when the automatic replenishment or automatic extraction of the engine oil is performed, the flow rate of the replenished engine oil or the extracted engine oil is adjusted according to the liquid level of the engine oil in the engine oil pan.
The operation method of the system is the same as the control method of engine oil capacity and temperature in embodiment 1, and will not be repeated here.
Example 3:
the present embodiment provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the engine oil capacity and temperature control method described in embodiment 1.
Example 4:
the present embodiment provides an electronic device including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the engine oil capacity and temperature control method of embodiment 1 when executing the program.
The above description is only a preferred embodiment of the present embodiment, and is not intended to limit the present embodiment, and various modifications and variations can be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment should be included in the protection scope of the present embodiment.

Claims (10)

1. A method for controlling engine oil capacity and temperature, comprising:
acquiring the temperature and the liquid level of engine oil in an engine oil pan;
according to the comparison between the liquid level of engine oil in the engine oil pan and a preset calibration value, the engine oil is automatically replenished or automatically extracted; before automatic engine oil replenishment, regulating the temperature of engine oil to be replenished according to the temperature of engine oil in an engine oil pan; when the automatic replenishment or automatic extraction of the engine oil is performed, the flow rate of the replenished engine oil or the extracted engine oil is adjusted according to the liquid level of the engine oil in the engine oil pan.
2. The method for controlling the capacity and temperature of engine oil according to claim 1, wherein the oil to be replenished is detected, and when it is judged that the oil to be replenished is degraded or contaminated, an early warning is made to reduce the rotation speed and torque of the engine.
3. The method for controlling engine oil capacity and temperature according to claim 1, wherein the preset calibration value is a preset range value; when the oil level in the engine oil pan is smaller than the minimum value of the preset range value, the engine oil is automatically replenished; when the oil level in the engine oil pan is greater than the maximum value of the preset range value, the engine oil is automatically extracted; when the oil level in the engine oil pan is within a preset range, automatic replenishment and automatic extraction of oil are not performed.
4. The method for controlling engine oil capacity and temperature according to claim 3, wherein a law of change in temperature of oil in an engine oil pan in a preset time period before a current time is determined, and when the oil level in the engine oil pan is in a downward trend and the rate of change in temperature in the preset time period is greater than a preset value, the temperature of the oil to be replenished is adjusted in advance.
5. The method for controlling engine oil capacity and temperature as set forth in claim 1, wherein the oil level at a plurality of locations in the engine oil pan is obtained, and an average of the oil levels at the plurality of locations is taken as the level of the oil in the engine oil pan.
6. The method for controlling engine oil capacity and temperature according to claim 5, wherein a side wall temperature of an engine oil pan is detected to determine a boundary line at which a maximum temperature difference occurs; and judging whether the boundary line is overlapped with the liquid level of the engine oil in the final engine oil pan, if so, determining the liquid level of the engine oil in the engine oil pan as the final determined liquid level, otherwise, continuing to detect the liquid level and the temperature to carry out re-judgment.
7. The method for controlling the capacity and temperature of engine oil according to claim 1, wherein the temperature of the engine oil to be replenished is adjusted to be equal to the temperature of the engine oil in the engine oil pan before the automatic replenishment of the engine oil is performed; when the automatic replenishment of the engine oil is carried out, if the liquid level of the engine oil in the engine oil pan is lower than a first preset value, the replenishment flow rate of the engine oil is increased; when the automatic extraction of the engine oil is carried out, if the liquid level of the engine oil in the engine oil pan is higher than a second preset value, the oil extraction flow is increased; the first preset value is smaller than the second preset value.
8. A control system for engine oil capacity and temperature, comprising:
a data acquisition module configured to: acquiring the temperature and the liquid level of engine oil in an engine oil pan;
a control module configured to: according to the comparison between the liquid level of engine oil in the engine oil pan and a preset calibration value, the engine oil is automatically replenished or automatically extracted; before automatic engine oil replenishment, regulating the temperature of engine oil to be replenished according to the temperature of engine oil in an engine oil pan; when the automatic replenishment or automatic extraction of the engine oil is performed, the flow rate of the replenished engine oil or the extracted engine oil is adjusted according to the liquid level of the engine oil in the engine oil pan.
9. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, realizes the steps of the engine oil capacity and temperature control method according to any one of claims 1-7.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method for controlling engine oil capacity and temperature of an engine as claimed in any one of claims 1-7 when executing the program.
CN202310350901.2A 2023-03-30 2023-03-30 Control method and system for engine oil capacity and temperature Pending CN116537910A (en)

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CN202310350901.2A CN116537910A (en) 2023-03-30 2023-03-30 Control method and system for engine oil capacity and temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310350901.2A CN116537910A (en) 2023-03-30 2023-03-30 Control method and system for engine oil capacity and temperature

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Publication Number Publication Date
CN116537910A true CN116537910A (en) 2023-08-04

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Country Status (1)

Country Link
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