CN116753054A - Engine oil quantity measuring method and device and vehicle - Google Patents
Engine oil quantity measuring method and device and vehicle Download PDFInfo
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- CN116753054A CN116753054A CN202310721100.2A CN202310721100A CN116753054A CN 116753054 A CN116753054 A CN 116753054A CN 202310721100 A CN202310721100 A CN 202310721100A CN 116753054 A CN116753054 A CN 116753054A
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- 239000010705 motor oil Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 211
- 239000003921 oil Substances 0.000 claims abstract description 102
- 238000012937 correction Methods 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 11
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- 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
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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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a method and a device for measuring engine oil quantity of an engine and a vehicle. The method comprises the following steps: acquiring an initial liquid level value of engine oil measured by an oil level gauge and acquiring state information of an engine; acquiring an engine state-liquid level compensation value relation model; the engine state-liquid level compensation value relation model establishes a relation between engine state information and a liquid level compensation value; processing the state information by adopting an engine state-liquid level compensation value relation model to obtain a liquid level compensation value; correcting the initial liquid level value by adopting the liquid level compensation value to obtain a liquid level correction value; outputting alarm information after the liquid level correction value exceeds a preset range; wherein the liquid level correction value characterizes the actual oil quantity value. The invention can improve the accuracy of the engine oil liquid level measurement result, monitor the engine oil liquid level in real time, and improve the safety and the service life of the engine.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a method and an apparatus for measuring engine oil quantity of an engine, and a vehicle.
Background
Mechanical wear is generated in the running process of the automobile engine, and the wear is irreversible, so that lubricating, antifriction and cooling of the interior of the engine are required by using engine oil. In order to ensure the normal operation of the engine, the oil level must be kept within a reasonable range, and insufficient oil quantity will lead to insufficient lubrication capacity between the components; excessive amounts of oil can spill over to increase engine internal power losses. Therefore, the engine oil level of the engine needs to be measured and monitored, and the normal operation of the engine is ensured.
The traditional engine oil level measurement method mainly depends on a mechanical oil level gauge, but the traditional engine oil level measurement method generally has the following problems: because the engine oil has the backflow time, the liquid level can be accurately read after the engine is stopped for more than sixty minutes, the liquid level of the engine oil can not be measured in time in the running process of the engine, and further the problems of leakage and the like in the running process of the engine can not be identified in time, the engine is damaged easily, and the service life of the engine is influenced.
Disclosure of Invention
The invention provides a method, a device and a vehicle for measuring engine oil quantity, so as to improve the accuracy and timeliness of engine oil liquid level measurement.
According to an aspect of the present invention, there is provided a method of measuring an engine oil amount, including:
acquiring an initial liquid level value of engine oil measured by an oil level gauge and acquiring state information of an engine;
acquiring an engine state-liquid level compensation value relation model; the engine state-liquid level compensation value relation model establishes a relation between engine state information and a liquid level compensation value;
processing the state information by adopting an engine state-liquid level compensation value relation model to obtain a liquid level compensation value;
correcting the initial liquid level value by adopting the liquid level compensation value to obtain a liquid level correction value; outputting alarm information after the liquid level correction value exceeds a preset range; wherein the liquid level correction value characterizes the actual oil quantity value.
According to another aspect of the present invention, there is provided a measuring apparatus for engine oil amount, comprising:
the information acquisition module is used for acquiring an initial liquid level value of engine oil measured by the oil rule and acquiring state information of the engine;
the compensation value acquisition module is used for acquiring an engine state-liquid level compensation value relation model; the engine state-liquid level compensation value relation model establishes a relation between engine state information and a liquid level compensation value; the state information is processed by adopting an engine state-liquid level compensation value relation model to obtain a liquid level compensation value;
the correction module is used for correcting the initial liquid level value by adopting the liquid level compensation value to obtain a liquid level correction value; outputting alarm information after the liquid level correction value exceeds a preset range; wherein the liquid level correction value characterizes the actual oil quantity value.
According to another aspect of the present invention, there is provided a vehicle including the method for measuring engine oil amount according to any one of the embodiments of the present invention for controlling an engine.
According to the embodiment of the invention, the initial liquid level value of engine oil is measured through the oil level gauge, and an engine state-liquid level compensation value relation model is established to correct the initial liquid level value. The influence of the engine state on the engine oil liquid level is comprehensively considered by the engine state-liquid level compensation value relation model, so that the problem of inaccurate engine oil liquid level is solved by adopting the model to correct the initial liquid level value. Meanwhile, the engine oil quantity of the engine is monitored in real time according to a preset strategy, so that the engine oil level is ensured to be in a safe range, and the problem that the service life of the engine is influenced due to engine damage caused by untimely monitoring of the engine oil level is solved. In summary, the embodiment of the invention can improve the accuracy of the engine oil liquid level measurement result, monitor the engine oil liquid level in real time, and improve the safety and the service life of the engine.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for measuring engine oil according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for establishing an engine state-level compensation value relationship model according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an engine oil amount measuring device according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention 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 invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention 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 invention 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.
Fig. 1 is a flow chart of a method for measuring engine oil according to an embodiment of the present invention, where the embodiment is applicable to a case of monitoring engine oil in real time. The method may be performed by a measuring device of the engine oil quantity, which may be implemented in hardware and/or software, which may be arranged in an engine control system of the vehicle. Referring to fig. 1, the method comprises the steps of:
s110, acquiring an initial liquid level value of engine oil measured by an oil level gauge and acquiring state information of an engine.
The oil rule can be an electronic oil rule, a mechanical oil rule and the like.
Taking an electronic oil rule as an example, based on the principle of an ultrasonic liquid level sensor, ultrasonic pulses are transmitted through an electronic analysis device in the oil rule, reflected and received at the boundary between engine oil and air, and the return distance of the sound waves determines echo time delay, so that the electronic analysis device calculates the oil level according to the echo time delay. For example, oil amount information is acquired by an ultrasonic oil level sensor mounted on an engine oil pan and measurement data is displayed on an electronic oil gauge.
Engine state information refers to relevant parameters that can describe the engine state. Illustratively, the status information of the engine includes: engine speed, engine oil temperature, engine shutdown time, engine inclination, and vehicle information.
S120, acquiring an engine state-liquid level compensation value relation model; wherein the engine state-liquid level compensation value relationship model establishes a relationship between the engine state information and the liquid level compensation value.
The liquid level compensation value refers to a value for compensating the initial oil level measured by the oil level gauge, and can positively or negatively compensate the initial oil level relative to the current engine state. The specific compensation value is determined by an engine state-liquid level compensation value relation model.
The principle of the establishment of the engine state-liquid level compensation value relation model is as follows: the engine state has a decisive influence on the measured value of the engine oil. For example, when the engine speed is high, the amount of oil entering the engine is large; and when the engine speed is low, the amount of oil entering the engine is small. Therefore, under the same oil quantity, the difference of the oil liquid levels measured at different engine speeds is larger, when the engine speed is higher, the liquid level compensation value is larger, and correspondingly, when the engine speed is lower, the liquid level compensation value is smaller. For another example, when the engine stop time is short, the amount of oil flowing back to the oil pan is small, and the initial liquid level should be compensated by a larger value, and as the stop time is long, the liquid level compensation value is gradually reduced after the oil gradually flows back.
According to the embodiment of the invention, the influence of the engine state information on the engine oil liquid level is comprehensively considered, the initial engine oil liquid level measured by the engine oil rule is positively or negatively compensated, and the corresponding relation between the liquid level compensation value and the engine state information is modeled, so that an engine state-liquid level compensation value relation model is obtained.
S130, processing the state information by adopting an engine state-liquid level compensation value relation model to obtain a liquid level compensation value.
The engine state information is input to an engine state-liquid level compensation value relation model to obtain a compensation coefficient generating deviation on the engine oil liquid level measurement, and then a liquid level compensation value is obtained.
S140, correcting the initial liquid level value by adopting the liquid level compensation value to obtain a liquid level correction value; outputting alarm information after the liquid level correction value exceeds a preset range; wherein the liquid level correction value characterizes the actual oil quantity value.
The liquid level correction value characterizes the actual liquid level of the engine oil, so that the liquid level of the engine oil can be alarmed according to the liquid level correction value. Specifically, when the liquid level correction value exceeds the preset range, it indicates that the actual engine oil amount is not within a reasonable range, and cannot meet the user demand, and there is a problem that the oil amount is too small to meet the lubrication demand, or the risk that the engine oil leaks or damages the engine due to too much oil amount. At this time, an alarm message is output to prompt the user to appropriately adjust the engine oil amount. The preset range may be a range of oil levels preset by a user to control the amount of oil within a reasonable range.
According to the embodiment of the invention, the initial liquid level value of engine oil is measured through the oil level gauge, and an engine state-liquid level compensation value relation model is established to correct the initial liquid level value. The influence of the engine state on the engine oil liquid level is comprehensively considered by the engine state-liquid level compensation value relation model, so that the problem of inaccurate engine oil liquid level is solved by adopting the model to correct the initial liquid level value. Meanwhile, the engine oil quantity of the engine is monitored in real time according to a preset strategy, so that the engine oil level is ensured to be in a safe range, and the problem that the service life of the engine is influenced due to engine damage caused by untimely monitoring of the engine oil level is solved. In summary, the embodiment of the invention can improve the accuracy of the engine oil liquid level measurement result, monitor the engine oil liquid level in real time, and improve the safety and the service life of the engine.
On the basis of the above embodiments, the embodiments of the present invention further provide a method for establishing an engine state-liquid level compensation value relationship model, which is specifically described below, but not limited thereto.
Fig. 2 is a flowchart of a method for establishing an engine state-liquid level compensation value relation model according to an embodiment of the present invention. Referring to FIG. 2, optionally, a method for building an engine state-level compensation value relationship model includes the steps of:
s210, selecting various oil values according to preset intervals in the oil quantity setting range.
The oil amount setting range may be [ a1, a2], a1 being a minimum value of the oil amount range, and a2 being a maximum value of the oil amount range. The values in a1 to a2 are divided into ranges at predetermined intervals (for example, 0.5L), and m oil amount values of a1, a1+0.5, + … …, a2 are obtained.
S220, i=1 is set.
S230, setting engine states of a plurality of stages under the ith oil quantity value, and recording a liquid level value measured by using an oil level gauge when the engine is in a static working condition.
Optionally, the state information of the engine includes: engine speed, engine oil temperature, engine shutdown time, engine inclination, vehicle information, and the like. The following description will be given one by one.
The influence of the engine speed on the engine oil level can be understood as follows: the engine speed is different, the lubricating oil amount entering the engine is different, when the engine is stopped and does not rotate, engine oil can flow back to the oil pan, and the numerical value measured by the oil level gauge is accurate. And when the rotating speed rises, the oil level measured by the oil rule is lower and lower.
The effect of oil temperature on oil level can be understood as: the shutdown temperature is measured after the engine test, the shutdown temperature is higher when the test is more intense, the shutdown temperature is lower when the test is more moderate, and the higher the temperature, the lower the oil level.
The effect of engine downtime on oil level can be understood as: when the engine is stopped, the engine is taken as an initial moment, the reflux quantity of the engine oil is different after different time periods, and particularly, after the engine is stopped, the temperature of the engine is reduced, the viscosity of the engine oil is increased, the reflux speed is reduced, and the liquid level of the engine oil is influenced.
The effect of engine tilt on oil level can be understood as: in the case of a certain oil quantity, the oil tank may overflow on one side in the case of a tilting left or tilting right, thereby affecting the oil level.
The effect of vehicle information on oil level can be understood as: when the acceleration of the vehicle changes, engine oil shakes in the oil tank, and the measurement of the level of the engine oil is influenced.
Specifically, taking the engine speed as an example, the liquid level values of the engine speeds at different stages are recorded under the ith oil quantity value. For example, when the oil quantity value is a1, the engine rotating speeds are respectively set to 750r/min, 1500r/min and 3000r/min, three different liquid level values are recorded when the engine is in a static working condition, and the measured oil liquid levels are different. According to the preset precondition, no matter how the rotating speed changes, the accurate value of the engine oil liquid level is a1, and the compensation quantity corresponding to different rotating speeds can be obtained through comparing the recorded engine oil liquid levels at different rotating speeds with the a 1.
S240, judging whether i is greater than or equal to m, if not, making i=i+1, and returning to execute S230; if yes, then execution proceeds to S250.
Specifically, if i < m indicates that the recorded oil quantity values are less than m, the steps of fixing the oil quantity values repeatedly and recording the liquid level values corresponding to the engine states at different stages are needed. For example, when the oil quantity value is a1+0.5, the left inclination angle of the engine is set to be 10 degrees, 15 degrees and 30 degrees respectively, and three different liquid level values are recorded when the engine is in a static working condition; for another example, when the oil quantity value is a1+2, the engine stop time is set to be 0.5 hour, 1 hour and 1.5 hours respectively, and three different liquid level values are recorded when the engine is in a static working condition.
If i is larger than or equal to m, indicating that the recording of the liquid level values corresponding to the engine states at different stages under the m oil mass values is completed, executing the step of establishing an engine state-liquid level compensation value relation model.
S250, an engine state-liquid level compensation value relation model is established according to various oil values, various engine states and liquid level values.
Specifically, the recorded data of various oil values, various engine states and liquid level values and the corresponding relation among the data are formed into a graph or a table, and are input into a controller of a vehicle to obtain an engine state-liquid level compensation value relation model.
In the embodiment, an engine state-liquid level compensation value relation model is established through an engine test, so that the engine state-liquid level compensation value relation model can be matched with a real engine running state, the test is repeated for a plurality of times to determine data, the accuracy of the model can be improved, and the accuracy of engine oil liquid level measurement is improved.
In the above embodiment, a relationship model of the engine state corresponding to the liquid level compensation value is established, and in other embodiments, a relationship model of at least two engine states corresponding to the liquid level compensation value may also be established, so as to further improve accuracy of the compensation value. The following is a specific description, but is not intended to limit the invention.
Optionally, the state information of the engine comprises n kinds of information of engine speed, engine oil temperature, engine shutdown time, engine inclination angle and vehicle information, and the engine state-liquid level compensation value relation model is an n+1-dimensional model; wherein n is a positive integer.
Optionally, the engine state-liquid level compensation value relation model establishes a relation between two of engine speed, engine oil temperature, engine shutdown time, engine inclination angle and vehicle information and a liquid level compensation value; the engine states include a first engine state and a second engine state.
Illustratively, n is 2, the engine state-liquid level compensation value relationship model is a 3-dimensional model, the first engine state is an engine inclination angle, the second engine state is a vehicle acceleration, the engine inclination angle is described by a left inclination angle and a right inclination angle, and the vehicle acceleration is described by an upper inclination angle and a lower inclination angle. When the oil quantity value is a1+10, the left inclination angle of the engine is set to be 10 degrees, 15 degrees and 30 degrees respectively, the upper inclination angle of the engine is set to be 5 degrees, 10 degrees and 15 degrees respectively, and different liquid level value information is recorded when the engine is in a static working condition. The liquid level value information is a set of liquid level values corresponding to all combinations of two engine states. It is known from the set precondition that the exact value of the oil level is a1+10 regardless of the change of the two engine states, and the compensation amounts corresponding to the two different engine states can be obtained by comparing the recorded oil levels in the two different engine states with a1+10.
In the step of processing the state information to obtain a liquid level compensation value, according to the state of the first engine, a corresponding liquid level value range is obtained; and obtaining a corresponding liquid level value according to the liquid level value range and the second engine state.
In the embodiment, more basis is provided for correcting the engine oil level by utilizing the relation between two of the engine state information and the liquid level compensation value, and the accuracy and the instantaneity of the engine oil level measurement can be effectively improved.
Alternatively, the engine is in a horizontal position under a static condition, and the engine is not started or is in an idle state.
In the embodiment, when the engine is in a static working condition, the accuracy of engine oil liquid level measurement is improved, and the engine state-liquid level compensation value relation model is more accurate.
Optionally, the preset threshold value of the liquid level value includes: presetting a minimum liquid level value, a maximum liquid level value and a limit liquid level value;
the alarm information comprises: insufficient oil, sufficient oil, excessive oil and oil limit; if the liquid level value is lower than the preset minimum liquid level value, the oil quantity is insufficient; if the liquid level value is between the preset minimum liquid level value and the preset maximum liquid level value, the oil quantity is sufficient; if the liquid level value is between the preset highest liquid level value and the preset limit liquid level value, the oil quantity is excessive; and if the liquid level value exceeds the preset limit liquid level value, the oil mass is limited.
For example, after testing the engine, a maximum angle of inclination (left or right or up or down) is set, at which the engine oil is not spilled, and at which the limit threshold for the oil quantity is determined by the test. And when the engine is in a static working condition, engine oil with different quality is sequentially added into the engine, after the oil level is stable, the value of an engine oil level sensor and the engine oil temperature read by an electronic control unit (Electronic Control Unit, ECU) of the automobile are respectively recorded, and the liquid level is corrected to obtain a preset minimum liquid level value, a preset maximum liquid level value and a preset limit liquid level value under the static working condition.
In this embodiment, by determining the preset threshold of the liquid level value and setting the corresponding alarm information, the engine oil quantity state can be effectively monitored in real time.
Optionally, after obtaining the liquid level correction value, the method further includes:
and displaying the liquid level correction value and corresponding alarm information.
In the embodiment, the engine oil liquid level is monitored in real time and a prompt is given to a user, so that the safety of the engine is improved.
Fig. 3 is a schematic structural diagram of an engine oil amount measuring device according to an embodiment of the present invention. The device provided by the embodiment can execute the method for measuring the engine oil quantity of the engine provided by any embodiment of the invention. Referring to fig. 3, the apparatus includes:
an information obtaining module 310, configured to obtain an initial level value of engine oil measured by the oil level gauge, and obtain state information of the engine;
the compensation value acquisition module 320 is configured to acquire an engine state-liquid level compensation value relationship model; the engine state-liquid level compensation value relation model establishes a relation between engine state information and a liquid level compensation value; the state information is processed by adopting an engine state-liquid level compensation value relation model to obtain a liquid level compensation value;
the correction module 330 is configured to correct the initial liquid level value by using the liquid level compensation value to obtain a liquid level correction value; outputting alarm information after the liquid level correction value exceeds a preset range; wherein the liquid level correction value characterizes the actual oil quantity value.
According to the measuring device for the engine oil quantity, provided by the embodiment of the invention, the initial engine oil level and the engine state information are acquired through the information acquisition module 310, the engine state-liquid level compensation value relation model is acquired through the compensation value acquisition module 320, the liquid level compensation value is obtained, the initial liquid level value is corrected through the correction module 330, and the alarm information is output after the liquid level correction value exceeds the preset range, so that the accuracy of an engine oil level measuring result can be improved, the engine oil level is monitored in real time, and the safety and the service life of the engine are improved.
The embodiment of the invention also provides a vehicle, which comprises the device for measuring the engine oil quantity of the engine, which is provided by any embodiment of the invention, and the technical principle and the generated beneficial effects are similar and are not repeated.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for measuring an engine oil amount, comprising:
acquiring an initial liquid level value of engine oil measured by an oil level gauge and acquiring state information of an engine;
acquiring an engine state-liquid level compensation value relation model; wherein the engine state-liquid level compensation value relation model establishes a relation between the engine state information and a liquid level compensation value;
processing the state information by adopting the engine state-liquid level compensation value relation model to obtain the liquid level compensation value;
correcting the initial liquid level value by adopting the liquid level compensation value to obtain a liquid level correction value; outputting alarm information after the liquid level correction value exceeds a preset range; wherein the liquid level correction value characterizes an actual oil quantity value.
2. The method for measuring engine oil quantity according to claim 1, wherein the method for establishing the engine state-liquid level compensation value relation model comprises the steps of:
selecting a plurality of oil quantity values according to preset intervals within an oil quantity setting range;
setting engine states of a plurality of stages under an oil quantity value, and recording a liquid level value measured by adopting the oil level gauge when the engine is in a static working condition;
repeating the steps of fixing the oil quantity value and recording the liquid level values corresponding to the engine states at different stages;
and establishing the engine state-liquid level compensation value relation model according to the plurality of oil values, the plurality of engine states and the liquid level value.
3. The method for measuring engine oil amount according to claim 2, characterized in that the state information of the engine includes: at least one of engine speed, engine oil temperature, engine shutdown time, engine inclination, and vehicle information.
4. The method according to claim 3, wherein the engine state-liquid level compensation value relation model is an n+1-dimensional model if the engine state information includes n of the engine speed, the engine oil temperature, the engine stop time, the engine inclination angle, and the vehicle information;
wherein n is a positive integer.
5. The method for measuring engine oil amount according to claim 3, wherein the engine state-liquid level compensation value relation model establishes a relation between two of the engine speed, the engine oil temperature, the engine stop time, the engine inclination angle, and the vehicle information and a liquid level compensation value; the engine states include a first engine state and a second engine state;
in the step of processing the state information to obtain the liquid level compensation value, according to the state of the first engine, obtaining a corresponding liquid level value range; and obtaining a corresponding liquid level value according to the liquid level value range and the second engine state.
6. The method for measuring engine oil quantity according to claim 2, wherein the static condition of the engine is that the engine is in a horizontal position and the engine is not started or is in an idle state.
7. The method for measuring engine oil amount according to claim 1, wherein the preset threshold value of the liquid level value includes: presetting a minimum liquid level value, a maximum liquid level value and a limit liquid level value;
the alarm information comprises: insufficient oil, sufficient oil, excessive oil and oil limit; if the liquid level value is lower than the preset minimum liquid level value, the oil quantity is insufficient; if the liquid level value is between the preset lowest liquid level value and the preset highest liquid level value, the oil quantity is sufficient; if the liquid level value is between the preset highest liquid level value and the preset limit liquid level value, the oil quantity is excessive; and if the liquid level value exceeds the preset limit liquid level value, the oil mass is limited.
8. The method for measuring engine oil amount according to claim 1, characterized by further comprising, after obtaining the liquid level correction value:
and displaying the liquid level correction value and displaying corresponding alarm information.
9. A measuring device for engine oil quantity, characterized by comprising:
the information acquisition module is used for acquiring an initial liquid level value of engine oil measured by the oil rule and acquiring state information of the engine;
the compensation value acquisition module is used for acquiring an engine state-liquid level compensation value relation model; wherein the engine state-liquid level compensation value relation model establishes a relation between the engine state information and a liquid level compensation value; the state information is processed by adopting the relation model of the engine state and the liquid level compensation value to obtain the liquid level compensation value;
the correction module is used for correcting the initial liquid level value by adopting the liquid level compensation value to obtain a liquid level correction value; outputting alarm information after the liquid level correction value exceeds a preset range; wherein the liquid level correction value characterizes an actual oil quantity value.
10. A vehicle, characterized by comprising: an engine and a vehicle control module controlling the engine according to the method of measuring engine oil according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310721100.2A CN116753054A (en) | 2023-06-16 | 2023-06-16 | Engine oil quantity measuring method and device and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310721100.2A CN116753054A (en) | 2023-06-16 | 2023-06-16 | Engine oil quantity measuring method and device and vehicle |
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| CN116753054A true CN116753054A (en) | 2023-09-15 |
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| CN202310721100.2A Pending CN116753054A (en) | 2023-06-16 | 2023-06-16 | Engine oil quantity measuring method and device and vehicle |
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| Country | Link |
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| CN (1) | CN116753054A (en) |
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2023
- 2023-06-16 CN CN202310721100.2A patent/CN116753054A/en active Pending
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