CN115795270A - Engine oil replacement cycle prediction method for engine and vehicle - Google Patents
Engine oil replacement cycle prediction method for engine and vehicle Download PDFInfo
- Publication number
- CN115795270A CN115795270A CN202310069849.3A CN202310069849A CN115795270A CN 115795270 A CN115795270 A CN 115795270A CN 202310069849 A CN202310069849 A CN 202310069849A CN 115795270 A CN115795270 A CN 115795270A
- Authority
- CN
- China
- Prior art keywords
- engine
- oil
- engine oil
- vehicle
- calibration data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Abstract
The invention discloses an engine oil replacement cycle prediction method of an engine and a vehicle, wherein the engine oil replacement cycle prediction method of the engine determines the service life T of engine oil according to combustion calibration data of each operating condition of the engine, the limit value of the service life of the engine oil and the ratio of each operating condition of the engine in the actual operating time of the engine; judging whether an instrument of the vehicle displays the vehicle running time or the vehicle running mileage; if the instrument of the vehicle displays the running time of the vehicle, judging whether the engine oil needs to be replaced according to the actual running time of the engine and the service life T of the engine oil; if the instrument of the vehicle displays the running mileage of the vehicle, judging whether the engine oil needs to be replaced or not according to the average vehicle speed V of the vehicle in the actual running time of the engine, the service life T of the engine oil and the running mileage of the vehicle from the last oil replacement; the service life of the engine oil is determined once every set time and whether the engine oil needs to be replaced is judged. The service life of the engine oil can be accurately predicted, and the engine oil can be replaced in time.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a method for predicting an engine oil replacement period of an engine and a vehicle.
Background
Adding machine oil as lubricating oil in the engine, machine oil plays the effect that the protection engine prevented engine wearing and tearing, needs in time to change machine oil in order to guarantee engine life, if machine oil changes untimely, then can lead to engine wear to aggravate rapidly, influences the life-span of engine, can burn out the engine even. The oil change cycle of an engine is affected by various factors, such as the operating conditions of the engine, the quality of the oil itself, the engine operating environment, and the soot content of crankcase blowby gases. The crankcase blowby gas is that when the engine works, part of combustible mixture and combustion products in the cylinder blow into the crankcase through the cylinder by the piston ring. Soot is the carbon component of the engine combustion products. The carbon content in the engine oil can be increased when the blow-by gas of the crankcase enters the engine oil of the engine, so that the viscosity of the engine oil is increased, and the engine oil replacement period is shortened. The soot content in the blow-by gas of the crankcase directly determines the carbon content in the engine oil of the engine, and further determines the engine oil replacement cycle length of the engine. In the prior art, the engine oil is generally replaced by an empirical value, however, the replacement period of the engine oil cannot be accurately predicted, economic loss is caused if the replacement is too early, and damage is caused to the engine if the replacement is too late.
Disclosure of Invention
The invention aims to provide a method for predicting the engine oil replacement cycle of an engine and a vehicle, which aim to solve the problems that the engine oil replacement cycle cannot be accurately predicted generally by empirical values in the prior art, and a method for predicting the engine oil replacement cycle by considering the combustion calibration data of the engine, the quality of the engine oil and the actual operation condition of the engine does not exist at present.
In order to achieve the purpose, the invention adopts the following technical scheme:
an oil change cycle prediction method for an engine, comprising:
s1: acquiring the actual operation time of the engine at the current moment in the engine oil replacement cycle of the engine;
s2: according to the combustion calibration data of each operation condition of the engine, the engine oil life limit value t and each operation condition ratio P of the engine in the actual operation time of the engine i Determining the service life T of the engine oil; the combustion calibration data comprises an oil injection advance angle, an oil injection end time, a limit oil injection end time, a rail pressure and an oil injection duration; i is the number of operating conditions of the engine, i =1, 2, 3 … n, the engine having n operating conditions;
s3: judging whether an instrument of the vehicle displays the vehicle running time or the vehicle running mileage;
if the instrument of the vehicle displays the vehicle running time, S4 is carried out;
if the instrument of the vehicle displays the vehicle driving mileage, S5 is carried out;
s4: judging whether engine oil needs to be replaced or not according to the actual running time of the engine and the service life T of the engine oil;
if yes, sending an engine oil replacement alarm;
if not, performing S6;
s5: judging whether the engine oil needs to be replaced or not according to the average vehicle speed V of the vehicle in the actual running time of the engine, the service life T of the engine oil and the mileage of the vehicle after the last engine oil replacement;
if yes, sending an engine oil replacement alarm;
if not, performing S6;
s6: starting timing, wherein the timing time is interval time;
s7: judging whether the interval time is more than or equal to set time;
if yes, the method returns to S1.
As a preferable mode of the method for predicting the oil change cycle of the engineThe method comprises the steps of according to combustion calibration data of each operation working condition of the engine, an engine oil life limit value t and each operation working condition proportion P of the engine in the actual operation time of the engine i Determining the oil life T comprises:
determining the engine oil failure slope X of each operation condition of the engine according to the combustion calibration data of each operation condition of the engine i ；
According to the limit value t of the service life of the engine oil and the engine oil failure slope X of each operation condition of the engine i Determining the service life T of single-point engine oil under each operating condition of the engine i ；
Single point engine oil life T according to each operation condition of engine i And each operating condition ratio P of the engine in the actual operating time of the engine i And determining the service life T of the engine oil.
As a preferable scheme of the engine oil replacement period prediction method of the engine, the engine oil failure slope X of each operation condition of the engine is determined according to the combustion calibration data of each operation condition of the engine i The method comprises the following steps:
checking a combustion calibration data-engine oil failure slope relation graph according to the combustion calibration data of each operation condition of the engine to obtain the engine oil failure slope X of each operation condition of the engine i 。
As a preferable scheme of the engine oil replacement cycle prediction method for the engine, the combustion calibration data-engine oil failure slope relation graph includes a first combustion calibration data-engine oil failure slope relation graph, a second combustion calibration data-engine oil failure slope relation graph, and a third combustion calibration data-engine oil failure slope relation graph, and the first combustion calibration data-engine oil failure slope relation graph, the second combustion calibration data-engine oil failure slope relation graph, and the third combustion calibration data-engine oil failure slope relation graph correspond to three vehicle types, namely a light truck type, a medium truck type, and a heavy truck type, one to one;
according to the combustion calibration data of each operation condition of the engine, checking a combustion calibration data-engine oil failure slope relation graph to obtain the combustion calibration data-engine oil failure slope relation graph of each operation condition of the engineEngine oil failure slope X i The method comprises the following steps:
judging which of three types of vehicles, namely a light truck, a medium truck and a heavy truck, the vehicle belongs to;
if the vehicle belongs to the light truck, checking a first combustion calibration data-engine oil failure slope relation graph according to the combustion calibration data of each operation working condition of the engine to obtain the engine oil failure slope X of each operation working condition of the engine i ；
If the vehicle belongs to the middle truck, the second combustion calibration data-engine oil failure slope relation graph is checked according to the combustion calibration data of each operation working condition of the engine to obtain the engine oil failure slope X of each operation working condition of the engine i ；
If the vehicle belongs to the heavy truck, checking a third combustion calibration data-engine oil failure slope relation graph according to the combustion calibration data of each operation working condition of the engine to obtain the engine oil failure slope X of each operation working condition of the engine i 。
As a preferable scheme of the engine oil replacement period prediction method of the engine, the engine oil failure slope X is determined according to the engine oil life limit value t and each operation condition of the engine i Determining the service life T of single-point engine oil under each operating condition of the engine i The method comprises the following steps:
by the formula T i =t/X i Determining the service life T of single-point engine oil under each operating condition of the engine i (ii) a Wherein, T i Single point oil life for each operating condition of the engine; t is the limit of the service life of the engine oil; x i An engine oil failure slope for each operating condition of the engine; i is the number of operating conditions of the engine, i =1, 2, 3 … n, the engine having n operating conditions.
As a preferable scheme of the engine oil replacement period prediction method of the engine, the single-point oil life T according to each operation condition of the engine i And each operating condition ratio P of the engine in the actual operating time of the engine i Determining the oil life T comprises:
by the formula
Determining the service life T of the engine oil; wherein T is the oil life; t is i Single point oil life for each operating condition of the engine; p i The method is characterized by comprising the steps of comparing all the operating conditions of the engine in the actual operating time of the engine.
As a preferable aspect of the method for predicting the oil change cycle of the engine, the determining whether the oil needs to be changed according to the actual operation time of the engine and the oil life T includes:
judging whether the actual running time of the engine is greater than or equal to the service life T of the engine oil or not;
if yes, the engine oil needs to be replaced;
if not, the engine oil does not need to be replaced.
As a preferable mode of the method for predicting the engine oil replacement cycle of the engine, the determining whether the engine oil replacement is required according to the average vehicle speed V of the vehicle in the actual operation time of the engine, the engine oil life T, and the mileage of the vehicle since the last engine oil replacement includes:
determining the optimal driving mileage S of the vehicle according to the average vehicle speed V and the engine oil life T of the vehicle in the actual running time of the engine;
judging whether the vehicle driving mileage since the last oil change is more than or equal to the optimal vehicle driving mileage S;
if yes, the engine oil needs to be replaced;
if not, the engine oil does not need to be replaced.
As a preferable aspect of the oil change cycle prediction method for an engine, the determining an optimal driving distance S of a vehicle based on an average vehicle speed V of the vehicle and the oil life T during an actual operation time of the engine includes:
determining the optimal driving mileage S of the vehicle through a formula S = V multiplied by T; wherein S is the optimal driving mileage of the vehicle; v is the vehicle average speed over the actual operating time of the engine; t is the service life of the engine oil.
The vehicle adopts the engine oil change cycle prediction method of the engine.
The invention has the beneficial effects that:
the invention provides an engine oil replacement cycle prediction method of an engine and a vehicle i And determining the service life T of the engine oil. The combustion calibration data of the engine, the quality of the engine oil and the operating condition of the engine are comprehensively considered to predict the service life T of the engine oil, so that the service life T of the engine oil can be accurately predicted, workers are reminded to replace the engine oil in time, economic loss caused by the fact that the engine oil is replaced too early can be avoided, damage to the engine caused by the fact that the engine oil is replaced too late can be avoided, the working efficiency of the engine is improved, the service life of the engine is prolonged, and the maintenance cost of users is reduced. Moreover, the engine oil replacement period prediction method of the engine cannot be adjusted and revised greatly due to the change of the engine model and the change of the combustion calibration data, and is high in applicability.
Drawings
Fig. 1 is a flowchart of a method for predicting an oil change cycle of an engine according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The present invention provides an oil change cycle prediction method of an engine, as shown in fig. 1, the oil change cycle prediction method of the engine includes:
s1: and acquiring the actual running time of the engine at the current moment in the engine oil replacement cycle of the engine. If the engine is used for the first time, the actual running time of the engine is from the beginning to the current time; if the engine is not used for the first time, the actual running time of the engine is from the last time of oil change to the current time.
S2: according to the combustion calibration data of each operation condition of the engine, the engine oil life limit value t and each operation condition ratio P of the engine in the actual operation time of the engine i Determining the service life T of the engine oil; wherein the combustion calibration data comprises an oil injection advance angle, an oil injection end time and a limit oil injectionEnd time, rail pressure, and duration of fuel injection. i is the number of operating conditions of the engine, i =1, 2, 3 … n, the engine having n operating conditions. Combustion calibration data for an engine can affect the soot content in crankcase blow-by gas, which in turn affects the carbon content in the engine oil of the engine, and thus affects the engine oil life T.
Specifically, according to the combustion calibration data of each operation condition of the engine, the engine oil life limit value t and each operation condition proportion P of the engine in the actual operation time of the engine i The specific steps for determining the service life T of the engine oil are as follows:
determining the engine oil failure slope X of each operation condition of the engine according to the combustion calibration data of each operation condition of the engine i . Specifically, according to the combustion calibration data of each operation condition of the engine, a relation graph of the combustion calibration data and the engine oil failure slope is checked to obtain the engine oil failure slope X of each operation condition of the engine i . The combustion calibration data-engine oil failure slope relation graph comprises a first combustion calibration data-engine oil failure slope relation graph, a second combustion calibration data-engine oil failure slope relation graph and a third combustion calibration data-engine oil failure slope relation graph, and the first combustion calibration data-engine oil failure slope relation graph, the second combustion calibration data-engine oil failure slope relation graph and the third combustion calibration data-engine oil failure slope relation graph correspond to the light truck type, the medium truck type and the heavy truck type one to one respectively.
Checking a combustion calibration data-engine oil failure slope relation graph according to the combustion calibration data of each operation condition of the engine to obtain the engine oil failure slope X of each operation condition of the engine i The concrete steps are as follows: and judging which of the three types of the light truck, the medium truck and the heavy truck the vehicle belongs to. If the vehicle belongs to the light truck, checking a first combustion calibration data-engine oil failure slope relation graph according to the combustion calibration data of each operating condition of the engine to obtain the engine oil failure slope X of each operating condition of the engine i (ii) a If the vehicle belongs to the middle truck, the second combustion calibration data-engine oil failure slope relation graph is checked according to the combustion calibration data of each operation working condition of the engine to obtain each engineEngine oil failure slope X under operation condition i (ii) a If the vehicle belongs to the heavy truck, checking a third combustion calibration data-engine oil failure slope relation graph according to the combustion calibration data of each operation working condition of the engine to obtain the engine oil failure slope X of each operation working condition of the engine i . The light truck type, the medium truck type and the heavy truck type respectively correspond to a first combustion calibration data-engine oil failure slope relation graph, a second combustion calibration data-engine oil failure slope relation graph and a third combustion calibration data-engine oil failure slope relation graph, and the corresponding relation graphs are selected according to which type of the vehicle belongs. The first combustion calibration data-engine oil failure slope relation graph, the second combustion calibration data-engine oil failure slope relation graph and the third combustion calibration data-engine oil failure slope relation graph are combustion calibration data-engine oil failure slope relation graphs obtained by summarizing and analyzing a large amount of test data, and corresponding engine oil failure slopes can be found in the graphs according to the fuel injection advance angle, the fuel injection end time, the limit fuel injection end time, the rail pressure and the fuel injection duration. Because the operating conditions of the engine are different, the oil injection advance angle, the oil injection ending time, the limit oil injection ending time, the rail pressure and the oil injection duration are different, different engine oil failure slopes are obtained under different operating conditions of the engine, and therefore the engine oil failure slope X of each operating condition of the engine can be obtained i 。
According to the limit value t of the service life of the engine oil and the engine oil failure slope X of each operation working condition of the engine i Determining the service life T of single-point engine oil under each operating condition of the engine i . In particular, by the formula T i =t/X i Determining the service life T of single-point engine oil under each operating condition of the engine i (ii) a Wherein, T i Single point oil life for each operating condition of the engine; t is the limit of the service life of the engine oil; x i The engine oil failure slope for each operating condition of the engine; i is the number of operating conditions of the engine, i =1, 2, 3 … n, the engine having n operating conditions. The limit value t of the service life of the engine oil is determined by the quality of the engine oil itself. Dividing the limit value t of the service life of the engine oil by the failure slope of the engine oil of each operation condition of the engine to obtain a single engine oil of each operation condition of the engineAnd (5) igniting the oil life.
Single point engine oil life T according to each operation condition of engine i And each operating condition of the engine in the actual operating time of the engine is occupied by P i And determining the service life T of the engine oil. In particular, by the formula
Determining the service life T of the engine oil; wherein T is the oil life; t is i Single point oil life for each operating condition of the engine; p i The method is characterized by comprising the steps of comparing all the operating conditions of the engine in the actual operating time of the engine. Wherein each operation condition ratio P of the engine in the actual operation time of the engine i Calculated by the ECU of the vehicle. The service life T of single-point engine oil under each working condition of the engine i Ratio P of each operation condition in actual operation time of engine i The product of the two is summed to obtain the oil life T. It will be appreciated that the single point oil life for the same operating condition of the engine is multiplied by the operating condition ratio over the actual operating time of the engine.
S3: judging whether an instrument of the vehicle displays the vehicle running time or the vehicle running mileage; if the instrument of the vehicle displays the vehicle running time, S4 is carried out; if the meter of the vehicle displays the vehicle mileage, S5 is performed. The cab instrument of a general large truck displays the vehicle driving distance, and the cab instrument of a loader displays the vehicle driving time.
S4: judging whether engine oil needs to be replaced or not according to the actual running time of the engine and the service life T of the engine oil; if yes, sending an engine oil replacement alarm; if not, S6 is carried out.
Specifically, judging whether the actual running time of the engine is more than or equal to the service life T of the engine oil; if yes, the engine oil needs to be replaced; if not, the engine oil does not need to be replaced.
S5: judging whether the engine oil needs to be replaced or not according to the average vehicle speed V of the vehicle in the actual running time of the engine, the service life T of the engine oil and the mileage of the vehicle after the last engine oil replacement; if yes, sending an engine oil replacement alarm; if not, S6 is carried out.
Specifically, according to the average vehicle speed V and the engine oil life T of the vehicle in the actual running time of the engine, determining the optimal driving mileage S of the vehicle through a formula S = V multiplied by T, wherein S is the optimal driving mileage of the vehicle; v is the vehicle average speed during the actual running time of the engine; t is the service life of the engine oil. Judging whether the vehicle driving mileage since the last oil change is more than or equal to the optimal vehicle driving mileage S; if yes, the engine oil needs to be replaced; if not, the engine oil does not need to be replaced. Wherein the vehicle average vehicle speed V in the actual running time of the engine is calculated by the ECU of the vehicle.
S6: and starting timing, wherein the timing time is interval time. It is understood that the timer is started when the oil change is not required as a result of the determination.
S7: judging whether the interval time is greater than or equal to the set time or not; if yes, the process returns to S1. And S1-S7 are carried out once every set time, the service life T of the engine oil is recalculated once, and whether the engine oil is replaced or not is judged so as to replace the engine oil in time.
The invention also provides a vehicle adopting the engine oil replacement period prediction method of the engine.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An engine oil change cycle prediction method for an engine, comprising:
s1: acquiring the actual operation time of the engine at the current moment in the engine oil replacement cycle of the engine;
s2: combustion calibration data, engine oil life limit t andeach operation condition ratio P of the engine in the actual operation time of the engine i Determining the service life T of the engine oil; the combustion calibration data comprises an oil injection advance angle, an oil injection end time, a limit oil injection end time, a rail pressure and an oil injection duration; i is the number of operating conditions of the engine, i =1, 2, 3 … n, the engine having n operating conditions;
s3: judging whether an instrument of the vehicle displays the vehicle running time or the vehicle running mileage;
if the instrument of the vehicle displays the vehicle running time, S4 is carried out;
if the instrument of the vehicle displays the vehicle driving mileage, S5 is carried out;
s4: judging whether engine oil needs to be replaced or not according to the actual running time of the engine and the service life T of the engine oil;
if yes, sending an engine oil replacement alarm;
if not, performing S6;
s5: judging whether the engine oil needs to be replaced or not according to the average vehicle speed V of the vehicle in the actual running time of the engine, the service life T of the engine oil and the mileage of the vehicle after the last engine oil replacement;
if yes, sending an engine oil replacement alarm;
if not, performing S6;
s6: starting timing, wherein the timing time is interval time;
s7: judging whether the interval time is greater than or equal to a set time or not;
if yes, the method returns to S1.
2. The method of claim 1, wherein the engine oil change cycle prediction method is based on the combustion calibration data of each operation condition of the engine, the oil life limit value t and each operation condition ratio P of the engine during the actual operation time of the engine i Determining the oil life T comprises:
determining the engine oil failure slope X of each operation condition of the engine according to the combustion calibration data of each operation condition of the engine i ；
According to the limit value t of the service life of the engine oil and the engine oil failure slope X of each operation condition of the engine i Determining the service life T of single-point engine oil under each operating condition of the engine i ；
Single point engine oil life T according to each operation condition of engine i And each operating condition ratio P of the engine in the actual operating time of the engine i And determining the service life T of the engine oil.
3. The method of claim 2, wherein the determination of the oil-failure slope X for each operating condition of the engine is based on combustion calibration data for each operating condition of the engine i The method comprises the following steps:
according to the combustion calibration data of each operation working condition of the engine, checking a combustion calibration data-engine oil failure slope relation graph to obtain the engine oil failure slope X of each operation working condition of the engine i 。
4. The engine oil change cycle prediction method of an engine according to claim 3, wherein the combustion calibration data-engine oil failure slope relationship diagram includes a first combustion calibration data-engine oil failure slope relationship diagram, a second combustion calibration data-engine oil failure slope relationship diagram, and a third combustion calibration data-engine oil failure slope relationship diagram, and the first combustion calibration data-engine oil failure slope relationship diagram, the second combustion calibration data-engine oil failure slope relationship diagram, and the third combustion calibration data-engine oil failure slope relationship diagram correspond to three vehicle types, namely a light truck type, a medium truck type, and a heavy truck type, one to one;
according to the combustion calibration data of each operation working condition of the engine, checking a combustion calibration data-engine oil failure slope relation graph to obtain the engine oil failure slope X of each operation working condition of the engine i The method comprises the following steps:
judging which of three types of vehicles, namely a light truck, a medium truck and a heavy truck, the vehicle belongs to;
if the vehicle belongs to the light truck, checking the first fuel according to the combustion calibration data of each operation condition of the engineObtaining the engine oil failure slope X of each operating condition of the engine by burning the calibration data-engine oil failure slope relation graph i ；
If the vehicle belongs to the middle truck, the second combustion calibration data-engine oil failure slope relation graph is checked according to the combustion calibration data of each operation working condition of the engine to obtain the engine oil failure slope X of each operation working condition of the engine i ；
If the vehicle belongs to the heavy truck, checking a third combustion calibration data-engine oil failure slope relation graph according to the combustion calibration data of each operation working condition of the engine to obtain the engine oil failure slope X of each operation working condition of the engine i 。
5. The method of claim 2, wherein the oil-change-cycle prediction method is based on the oil-life limit t and the oil-failure slope X of each operating condition of the engine i Determining the service life T of single-point engine oil under each operating condition of the engine i The method comprises the following steps:
by the formula T i =t/X i Determining the service life T of single-point engine oil under each operating condition of the engine i (ii) a Wherein, T i Single point oil life for each operating condition of the engine; t is the limit of the service life of the engine oil; x i The engine oil failure slope for each operating condition of the engine; i is the number of operating conditions of the engine, i =1, 2, 3 … n, the engine having n operating conditions.
6. The engine oil change cycle prediction method of an engine according to claim 2, characterized in that the single point oil life T is based on each operating condition of the engine i And each operating condition ratio P of the engine in the actual operating time of the engine i Determining the oil life T comprises:
by the formula
Determining the service life T of the engine oil; wherein T is the oil life; t is i For each operating condition of the engineIgniting the engine oil for service life; p i The method is characterized by comprising the steps of comparing all the operating conditions of the engine in the actual operating time of the engine.
7. The engine oil change cycle prediction method of an engine according to any one of claims 1 to 6, wherein determining whether or not oil change is required based on an actual operation time of the engine and the oil life T comprises:
judging whether the actual running time of the engine is greater than or equal to the engine oil life T or not;
if yes, the engine oil needs to be replaced;
if not, the engine oil does not need to be replaced.
8. The engine oil change cycle prediction method of an engine according to any one of claims 1 to 6, wherein determining whether or not oil change is required based on the vehicle average vehicle speed V, the oil life T, and the mileage since the last oil change of the vehicle during the actual operation time of the engine comprises:
determining the optimal driving mileage S of the vehicle according to the average vehicle speed V and the engine oil life T of the vehicle in the actual running time of the engine;
judging whether the vehicle driving mileage since the last oil change is more than or equal to the optimal vehicle driving mileage S;
if yes, the engine oil needs to be replaced;
if not, the engine oil does not need to be replaced.
9. The engine oil change cycle prediction method of an engine according to claim 8, wherein determining the optimal vehicle driving range S based on the average vehicle speed V and the oil life T of the vehicle during the actual running time of the engine comprises:
determining the optimal driving mileage S of the vehicle through a formula S = V multiplied by T; wherein S is the optimal driving mileage of the vehicle; v is the vehicle average speed over the actual operating time of the engine; t is the service life of the engine oil.
10. A vehicle characterized by employing the engine oil change cycle prediction method of the engine according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310069849.3A CN115795270B (en) | 2023-02-07 | 2023-02-07 | Engine oil replacement period prediction method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310069849.3A CN115795270B (en) | 2023-02-07 | 2023-02-07 | Engine oil replacement period prediction method and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115795270A true CN115795270A (en) | 2023-03-14 |
| CN115795270B CN115795270B (en) | 2023-05-23 |
Family
ID=85430130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310069849.3A Active CN115795270B (en) | 2023-02-07 | 2023-02-07 | Engine oil replacement period prediction method and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115795270B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492399A (en) * | 2018-02-11 | 2018-09-04 | 山东大学 | Bull-dozer fault diagnosis expert system for diesel engine based on big data analysis and method |
| CN112232530A (en) * | 2020-09-11 | 2021-01-15 | 上海远度汽车科技有限公司 | Automobile maintenance cycle operation method and vehicle-mounted intelligent operation system |
| US20210381409A1 (en) * | 2020-06-04 | 2021-12-09 | Hyundai Motor Company | Method and system for sensing engine oil deterioration |
-
2023
- 2023-02-07 CN CN202310069849.3A patent/CN115795270B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492399A (en) * | 2018-02-11 | 2018-09-04 | 山东大学 | Bull-dozer fault diagnosis expert system for diesel engine based on big data analysis and method |
| US20210381409A1 (en) * | 2020-06-04 | 2021-12-09 | Hyundai Motor Company | Method and system for sensing engine oil deterioration |
| CN112232530A (en) * | 2020-09-11 | 2021-01-15 | 上海远度汽车科技有限公司 | Automobile maintenance cycle operation method and vehicle-mounted intelligent operation system |
Non-Patent Citations (4)
| Title |
|---|
| 曹玉东;谢鑫鹏;: "柴油车发动机寿命预测研究" * |
| 汤东,罗福强: "车用柴油机加速工况时喷油与燃烧特性的研究" * |
| 董翔英;谢鑫鹏;于战果;匡小平;: "柴油发动机寿命实时预测系统的设计与实现" * |
| 高宏亮;李建统;尚芳;余华荣;曾观冬;: "小型风冷汽油机流固耦合传热模拟计算研究" * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115795270B (en) | 2023-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102374051B (en) | The method and system that prefiring controls | |
| CN103382868B (en) | Use the oil life monitoring system of the fuel mass factor | |
| US7841172B2 (en) | Method and system for maintaining aftertreatment efficiency | |
| US9347348B2 (en) | Active regeneration control device for a diesel particulate filter | |
| US8577541B2 (en) | Particulate filter ash loading prediction method and vehicle using same | |
| US8214135B2 (en) | Particulate filter ash loading prediction method and vehicle using same | |
| EP2436891B1 (en) | Particulate filter ash loading prediction method and vehicle using the same | |
| KR20120106627A (en) | Method for determining wear of electrodes of spark plug and apparatus therefor | |
| Kar et al. | Assessing the impact of lubricant and fuel composition on LSPI and emissions in a turbocharged gasoline direct injection engine | |
| CN115795270A (en) | Engine oil replacement cycle prediction method for engine and vehicle | |
| Song et al. | Investigation of variations of lubricating oil diluted by post-injected fuel for the regeneration of CDPF and its effects on engine wear | |
| JP2021032188A (en) | Deterioration determination device and deterioration determination method for engine oil | |
| CN110410186A (en) | The detection method and system of particle object amount, storage medium and control unit | |
| EP2123868A1 (en) | Method for determining oil dilution | |
| West et al. | Lubricating oil consumption on the standard road cycle | |
| CN106609708A (en) | Pre-chamber fuel admission valve diagnostics | |
| US20200340378A1 (en) | Method and control unit for operating a diesel internal combustion engine or a dual-fuel internal combustion engine operated in the diesel mode | |
| Jung et al. | Closed-Loop control method for monitoring and improving the diesel combustion noise | |
| CN112523885A (en) | Method and device for controlling fire in engine | |
| RU2797732C2 (en) | Method and device for control of diesel internal combustion engine or dual-fuel internal combustion engine operating in diesel internal combustion engine mode | |
| KR20080054691A (en) | Monitoring method of cpf ash accumulation and oil leakage by using oil sensor | |
| RU2806947C2 (en) | Method and control unit for operation of internal combustion engine with spark ignition or dual-fuel internal combustion engine operating in spark ignition mode | |
| CN112377306A (en) | Diesel engine running state prediction method | |
| AU2008249218B2 (en) | Method and system for detecting the dilution of the lubricant by the fuel | |
| CN114622991B (en) | Engine misfire judging method, engine and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |