CN107842409B - Lubrication system and lubrication method - Google Patents
Lubrication system and lubrication method Download PDFInfo
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- CN107842409B CN107842409B CN201711037087.XA CN201711037087A CN107842409B CN 107842409 B CN107842409 B CN 107842409B CN 201711037087 A CN201711037087 A CN 201711037087A CN 107842409 B CN107842409 B CN 107842409B
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- oil supply
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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
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
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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
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
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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
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
- F01M1/20—Indicating or safety devices concerning lubricant pressure
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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
- F01M2250/00—Measuring
- F01M2250/62—Load
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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)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a lubricating system and a lubricating method, wherein the lubricating system comprises: both ends of the oil pan are communicated with the oil pan and are connected with a main oil gallery of the engine in series; a lubricating oil power device connected in series with the main oil duct; the flowmeter is connected in series with the main oil duct and is used for detecting the oil supply amount of the lubricating oil power device; the acquisition device is used for acquiring the lubricating parameters in the lubricating system under the current working condition; the control module is in communication connection with the acquisition device, the flowmeter and the lubricating oil power device; the control module obtains the required oil supply quantity of the lubricating oil under the working condition according to the lubricating parameters, compares the required oil supply quantity with the actual oil supply quantity obtained by detection and calculation of the flow meter, and outputs a control signal to the lubricating oil power device according to a comparison result. The lubricating system provided by the invention avoids the condition that the lubricating oil is consumed too fast due to excessive oil supply, also avoids the condition that the service life and the efficiency of the lubricating system are influenced due to too little oil supply, ensures effective lubrication and avoids abnormal abrasion of an engine.
Description
Technical Field
The invention relates to the technical field of engine equipment, in particular to a lubricating system and a lubricating method.
Background
An engine is a machine capable of converting other forms of energy into mechanical energy, and has been widely used in various fields.
In order to ensure the operational stability, i.e. the service life, of the engine, a lubrication system is usually provided to lubricate the engine. In the prior art, a lubricating system supplies a certain amount of lubricating oil to an engine in the running process of the engine. The engine has various working conditions, and the condition that the lubricating oil of the engine is too much or too little exists in the constant lubricating oil supply. When the oil supply amount is excessive, the consumption of the lubricating oil is too fast; when the oil supply amount is too small, the engine cannot be effectively lubricated, the service life of the engine and the efficiency of a lubricating system are seriously influenced, and the engine is abnormally abraded.
Therefore, how to avoid the excessive consumption of the lubricating oil and the abnormal wear of the engine and improve the service life of the engine is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a lubrication system to avoid the excessive consumption of the lubricant and the abnormal wear of the engine, and to improve the service life of the engine. The invention also provides a lubricating method.
In order to achieve the purpose, the invention provides the following technical scheme:
a lubrication system comprising:
both ends of the oil pan are communicated with the oil pan and are connected with a main oil gallery of the engine in series;
the lubricating oil power device is connected in series with the main oil duct;
the flowmeter is connected in series with the main oil duct and is used for detecting the oil supply quantity of the lubricating oil power device;
the acquisition device is used for acquiring the lubricating parameters in the lubricating system under the current working condition;
the control module is in communication connection with the acquisition device, the flowmeter and the lubricating oil power device; and the control module obtains the required oil supply quantity of the lubricating oil under the working condition according to the lubricating parameters, compares the required oil supply quantity with the actual oil supply quantity obtained by detection and calculation of the flowmeter, and outputs a control signal to the lubricating oil power device according to a comparison result.
Preferably, the lubricating method further includes a cooling water temperature sensor for detecting the engine start temperature Te.
Preferably, the lubricating method further includes a dielectric constant sensor provided in the oil pan and configured to detect a dielectric constant of the lubricating oil.
Preferably, in the above lubrication method, the collecting device includes:
an oil pressure sensor for detecting an oil pressure;
and/or an oil temperature sensor for detecting an oil temperature;
and/or, a rotational speed detection device for detecting the rotational speed of the engine;
and/or the acquisition device comprises a transmission system for measuring the engine load.
Preferably, the lubricating method further includes:
a filter connected in series to the main oil gallery;
one end of the oil distribution channel is connected to an oil distribution channel of an oil channel section between the lubricating oil power device of the main oil channel and the filter, and the other end of the oil distribution channel is communicated with the oil pan;
and the pressure limiting valve is connected in series with the oil separating channel.
The invention also provides a lubricating method, comprising the following steps:
1) collecting lubricating parameters in a lubricating system under the current working condition;
2) obtaining the required oil supply quantity Q of the lubricating oil under the working condition according to the lubricating parameters;
3) comparing the required oil supply quantity with the actual oil supply quantity to obtain a comparison result:
when the comparison result meets the requirement, entering the step 1);
and when the comparison result does not meet the requirement, adjusting the oil supply amount.
Preferably, in the above lubrication method, in the step 3), the comparison result is a difference between the required oil supply amount and the actual oil supply amount;
when the difference value is within a preset difference value range, the comparison result meets the requirement; and when the difference value is not within the preset difference value range, the comparison result does not meet the requirement.
Preferably, in the above lubrication method, the step 1) further includes detecting a start temperature Te of the engine;
in the step 2), when the starting temperature Te is less than or equal To the preset temperature To, judging that the engine is normally started, wherein the required oil supply Q is the normal required oil supply Qo of the lubricating oil under the working condition calculated according To the lubricating parameters;
and when the starting temperature Te is larger than the preset temperature To, judging that the engine is in hot start, wherein the required oil supply quantity Q is normal required oil supply quantity Qo + hot start lubricating oil quantity Qe.
Preferably, in the lubricating method, the step 1) further includes detecting a dielectric constant λ of the lubricating oil;
and the required oil supply quantity Q is lambda Qnew, and the Qnew is the adjusted oil supply quantity.
Preferably, in the above lubrication method, the lubrication parameter includes one or more of oil pressure, oil temperature, engine speed, and engine load.
According to the technical scheme, the lubricating system provided by the invention can adjust the lubricating oil power device according to the lubricating parameters under the current working condition through the arrangement, so that the oil supply amount is adjusted. Namely, the oil supply quantity can be adjusted according to actual requirements, so that the oil supply quantity can be adjusted according to the difference of the oil supply quantity requirements of the lubricating oil under different working conditions, the condition that the lubricating oil is consumed too fast due to too much oil supply quantity is avoided, the condition that the service life and the efficiency of a lubricating system are influenced due to too little oil supply quantity is also avoided, effective lubrication is ensured, and abnormal abrasion of an engine is avoided.
The invention also provides a lubricating method. The technical effects of the lubricating system are the same as those of the lubricating system, and the technical effects are not described in detail herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a lubrication system provided in an embodiment of the present invention;
fig. 2 is a schematic flow chart of a lubrication method according to an embodiment of the present invention.
Detailed Description
The invention discloses a lubricating system, which aims to avoid the excessive consumption of lubricating oil and the abnormal abrasion of an engine and prolong the service life of the engine. The invention also provides a lubricating method.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a lubricating system, which includes a main oil gallery 1, a lubricating oil power device 9, a flow meter 8, a collecting device, and a control module 4. Wherein, both ends of the main oil gallery 1 are communicated with the oil pan 12, so that the main oil gallery 1 and the oil pan 12 are combined to form a flow passage for the circulation flow of the lubricating oil. Wherein the engine 14 is connected in series to the main oil gallery 1 so that the lubricating oil lubricates the engine 14. The lubricating oil power device 9 is connected in series on the main oil gallery 1, and the flow meter 8 is used for detecting the oil supply quantity of the lubricating oil power device 9; the collecting device collects the lubricating parameters in the lubricating system under the current working condition. The control module 4 is in communication connection with the acquisition device, the flow meter 8 and the lubricating oil power device 9. The control module 4 obtains the required oil supply amount of the lubricating oil under the working condition according to the lubricating parameters, compares the required oil supply amount with the actual oil supply amount obtained by detection and calculation of the flowmeter 8, and outputs a control signal to the lubricating oil power device 9 according to a comparison result.
According to the lubricating system provided by the embodiment of the invention, the lubricating oil power device 9 can be adjusted according to the lubricating parameters under the current working condition through the arrangement, so that the oil supply amount is adjusted. Namely, the oil supply quantity can be adjusted according to actual requirements, so that the oil supply quantity can be adjusted according to the difference of the oil supply quantity requirements of the lubricating oil under different working conditions, the condition that the lubricating oil is consumed too fast due to too much oil supply quantity is avoided, the condition that the service life and the efficiency of a lubricating system are influenced due to too little oil supply quantity is also avoided, effective lubrication is ensured, and abnormal abrasion of an engine is avoided.
In the present embodiment, the lubricating oil power unit 9 is preferably an electric motor oil pump. It will be appreciated that a lubrication parameter is a parameter which affects the lubrication effect of the lubricating oil on the engine.
When the engine 14 is started in a hot state, the surface temperature of each part of the engine 14 after being stopped is very high, the lubricating oil has low viscosity and cannot be attached to a moving surface, a machine part is still in an expansion state in the hot state, the fit clearance is very small, and when the engine 14 is started, parts are in a dry friction state, the starting resistance is large, so that the engine is not easy to start, and even if the engine is started successfully, the abrasion is also very large. The lubricating system of the present invention further includes a cooling water temperature sensor 15 for detecting the start temperature Te of the engine 14. When the starting temperature Te > the predetermined temperature To, it is judged that the engine 14 is a warm start. In this state, the hot start lubricating oil amount Qe needs to be increased on the basis of the lubricating oil amount (normal required oil supply amount Qo) calculated from the lubricating parameter, to obtain the required oil supply amount Q. With the above arrangement, the warm-start lubricating oil amount Qe is increased to increase the oil pressure, facilitating lubrication of the engine 14 at the time of warm start.
The cooling water temperature sensor 15 may be in communication with the control module 4, or may be manually operated to directly adjust the lubricating oil power device 9.
The lubricating oil is aged and deteriorated along with the prolonging of the service life, and the lubricating effect is influenced. Therefore, in the present embodiment, a dielectric constant sensor 11 provided in the oil pan 12 is further included, and the dielectric constant sensor 11 is used to detect the dielectric constant λ of the lubricating oil. The lubricant oil is deteriorated with time and the dielectric constant λ is changed, where Q ═ λ Qnew is the adjusted oil supply amount. Through the arrangement, the adjusted oil supply quantity is increased, and the quantity of the required oil supply quantity Q is met.
In the present embodiment, the collecting device includes an oil pressure sensor 6, an oil temperature sensor 5, a rotation speed detecting device 13, and the transmission system 2. Wherein, the oil pressure sensor 6 is used for detecting oil pressure; the oil temperature sensor 5 is used for detecting the oil temperature; the rotation speed detection device 13 is used for detecting the rotation speed of the engine 14; the driveline 2 acquisition device includes a load sensor for measuring the load on the engine 14.
One or more of the oil pressure sensor 6, the oil temperature sensor 5, the rotation speed detecting device 13, and the transmission system 2 may be provided (i.e., the oil pressure sensor 6, the oil temperature sensor 5, the rotation speed detecting device 13, and the transmission system 2 are not all provided), and they are not described in detail herein and are all within the protection range.
In order to ensure the use safety of the lubricating system, the lubricating system also comprises a filter 7, an oil separating channel and a pressure limiting valve 10. The filter 7 is connected in series on the main oil gallery 1 so as to filter the lubricating oil in the main oil gallery 1; one end of the oil dividing passage is connected to an oil passage section between the lubricating oil power device 9 of the main oil passage 1 and the filter 7, and the other end of the oil dividing passage is communicated with an oil pan 12; the pressure limiting valve 10 is connected in series on the oil separating channel. When the filter 7 is clogged or the filtering effect is reduced, the oil pressure in the oil passage section between the lubricating oil power unit 9 and the filter 7 increases. By arranging the oil dividing passage and the pressure limiting valve 10, the oil passage section between the lubricating oil power device 9 and the filter 7, the filter 7 and the lubricating oil power device 9 are effectively prevented from being damaged due to overlarge oil pressure, and the use safety of a lubricating system is ensured.
The embodiment of the invention also provides a lubricating method, which comprises the following steps:
s1: collecting lubricating parameters in a lubricating system under the current working condition;
the lubricating parameters are parameters influencing the lubricating effect of the lubricating oil on the engine.
S2: obtaining the required oil supply quantity Q of the lubricating oil under the working condition according to the lubricating parameters;
through the setting, the required oil supply quantity Q is obtained, so that lubrication under the current working condition is met.
S3: comparing the required oil supply with the actual oil supply to obtain a comparison result:
when the comparison result satisfies the requirement, the process proceeds to step S1; and when the comparison result does not meet the requirement, adjusting the oil supply amount.
The lubricating method provided by the embodiment of the invention can adjust the oil supply quantity according to the lubricating parameters under the current working condition. Namely, the oil supply quantity can be adjusted according to actual requirements, so that the oil supply quantity can be adjusted according to the difference of the oil supply quantity requirements of the lubricating oil under different working conditions, the condition that the lubricating oil is consumed too fast due to too much oil supply quantity is avoided, the condition that the service life and the efficiency of a lubricating system are influenced due to too little oil supply quantity is also avoided, effective lubrication is ensured, abnormal abrasion of an engine is avoided, and the service life of the engine is effectively prolonged.
In the present embodiment, in step S3, the comparison result is the difference between the required oil supply amount and the actual oil supply amount; when the difference value is within the preset difference value range, the comparison result meets the requirement; and when the difference value is not within the preset difference value range, the comparison result does not meet the requirement.
The comparison result can meet the requirement under the condition that the required oil supply amount is equal to the actual oil supply amount; and when the required oil supply amount is not equal to the actual oil supply amount, the comparison result does not meet the requirement.
Further, step S1 includes detecting a start temperature Te of the engine; in step S2, when the starting temperature Te is less than or equal To the predetermined temperature To, it is determined that the engine is normally started, and the required oil supply Q is a normal required oil supply Qo of the lubricating oil under the working condition calculated according To the lubricating parameters; and when the starting temperature Te is larger than the preset temperature To, judging that the engine is in hot start, and setting the required oil supply quantity Q as the normal required oil supply quantity Qo + the hot start lubricating oil quantity Qe. Through the arrangement, when the engine is in hot start, the oil supply amount (the hot start lubricating oil amount Qe) is increased, and then the pressure of the lubricating oil is improved, so that the optimal lubricating oil flow rate when the engine is in hot start is achieved.
Further, step S1 includes detecting a dielectric constant λ of the lubricating oil; the required oil supply amount Q is λ Qnew, and Qnew is the adjusted oil supply amount. Namely, the oil supply amount is adjusted to reach Qnew at the most, so that the influence caused by the deterioration of the lubricating oil is eliminated, and the lubricating effect is further improved.
In the lubricating method provided by the embodiment of the invention, the lubricating parameters comprise one or more of oil pressure, oil temperature, engine rotating speed and engine load.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A lubrication system, comprising:
both ends of the oil pan (12) are communicated with the oil pan and are connected with the main oil gallery (1) of the engine (14) in series;
a lubricating oil power device (9) connected in series with the main oil gallery (1);
the flowmeter (8) is connected in series with the main oil gallery (1) and is used for detecting the oil supply amount of the lubricating oil power device (9);
the acquisition device is used for acquiring the lubricating parameters in the lubricating system under the current working condition;
a control module (4) in communication with the collection device, the flow meter (8) and the lube oil power plant (9); and the control module (4) obtains the required oil supply amount of the lubricating oil under the working condition according to the lubricating parameters, compares the required oil supply amount with the actual oil supply amount obtained by detection and calculation of the flowmeter (8), and outputs a control signal to the lubricating oil power device (9) according to a comparison result.
2. The lubrication system as recited in claim 1, further comprising a cooling water temperature sensor (15) for detecting a start temperature Te of the engine (14).
3. The lubrication system according to claim 1, further comprising a dielectric constant sensor (11) disposed in the oil pan (12) for detecting a dielectric constant of the lubricating oil.
4. The lubrication system of claim 1, wherein the pick-up device comprises:
an oil pressure sensor (6) for detecting an oil pressure;
and/or an oil temperature sensor (5) for detecting an oil temperature;
and/or a rotational speed detection device (13) for detecting a rotational speed of the engine (14);
and/or the acquisition device comprises a transmission system (2) for measuring the load of the engine (14).
5. The lubrication system of any one of claims 1-4, further comprising:
a filter (7) connected in series to the main oil gallery (1);
one end of the oil distribution channel is connected to an oil distribution channel of an oil channel section between the lubricating oil power device (9) of the main oil channel (1) and the filter (7), and the other end of the oil distribution channel is communicated with the oil pan (12);
and the pressure limiting valve (10) is connected in series with the oil distribution passage.
6. A method of lubrication, comprising the steps of:
1) collecting lubricating parameters in a lubricating system under the current working condition;
2) obtaining the required oil supply quantity Q of the lubricating oil under the working condition according to the lubricating parameters;
3) comparing the required oil supply quantity with the actual oil supply quantity to obtain a comparison result, and judging whether the comparison result meets the requirement:
when the comparison result meets the requirement, entering the step 1);
and when the comparison result does not meet the requirement, adjusting the oil supply amount.
7. The lubrication method according to claim 6, wherein in the step 3), the comparison result is a difference between the required oil supply amount and the actual oil supply amount;
when the difference value is within a preset difference value range, the comparison result meets the requirement; and when the difference value is not within the preset difference value range, the comparison result does not meet the requirement.
8. The lubrication method according to claim 6, wherein the step 1) further comprises detecting a start temperature Te of the engine;
in the step 2), when the starting temperature Te is less than or equal To the preset temperature To, judging that the engine is normally started, wherein the required oil supply Q is the normal required oil supply Qo of the lubricating oil under the working condition calculated according To the lubricating parameters;
and when the starting temperature Te is larger than the preset temperature To, judging that the engine is in hot start, wherein the required oil supply quantity Q is normal required oil supply quantity Qo + hot start lubricating oil quantity Qe.
9. The lubrication method according to claim 6, wherein the step 1) further comprises detecting a dielectric constant λ of the lubricating oil;
and the required oil supply quantity Q is lambda Qnew, and the Qnew is the adjusted oil supply quantity.
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| CN201711037087.XA CN107842409B (en) | 2017-10-30 | 2017-10-30 | Lubrication system and lubrication method |
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| CN201711037087.XA CN107842409B (en) | 2017-10-30 | 2017-10-30 | Lubrication system and lubrication method |
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| CN107842409B true CN107842409B (en) | 2020-03-10 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000303813A (en) * | 1999-04-20 | 2000-10-31 | Mikuni Adec Corp | Lubricating oil supply device for two-cycle engine |
| JP2004340066A (en) * | 2003-05-16 | 2004-12-02 | Toyota Motor Corp | Internal combustion engine |
| EP1640571A1 (en) * | 2004-09-28 | 2006-03-29 | Aisin Seiki Kabushiki Kaisha | Oily supply device for engine |
| JP2011127571A (en) * | 2009-12-21 | 2011-06-30 | Daihatsu Motor Co Ltd | Method of controlling early warm-up of internal combustion engine |
| CN104832241A (en) * | 2014-12-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Engine lubrication control device, system and control method |
| CN105593478A (en) * | 2014-09-11 | 2016-05-18 | 马自达汽车株式会社 | Oil supply device for engine |
-
2017
- 2017-10-30 CN CN201711037087.XA patent/CN107842409B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000303813A (en) * | 1999-04-20 | 2000-10-31 | Mikuni Adec Corp | Lubricating oil supply device for two-cycle engine |
| JP2004340066A (en) * | 2003-05-16 | 2004-12-02 | Toyota Motor Corp | Internal combustion engine |
| EP1640571A1 (en) * | 2004-09-28 | 2006-03-29 | Aisin Seiki Kabushiki Kaisha | Oily supply device for engine |
| JP2011127571A (en) * | 2009-12-21 | 2011-06-30 | Daihatsu Motor Co Ltd | Method of controlling early warm-up of internal combustion engine |
| CN105593478A (en) * | 2014-09-11 | 2016-05-18 | 马自达汽车株式会社 | Oil supply device for engine |
| CN104832241A (en) * | 2014-12-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Engine lubrication control device, system and control method |
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