CN108506114A - Reduce the diluted device and method of engine motor oil - Google Patents
Reduce the diluted device and method of engine motor oil Download PDFInfo
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- CN108506114A CN108506114A CN201710112005.7A CN201710112005A CN108506114A CN 108506114 A CN108506114 A CN 108506114A CN 201710112005 A CN201710112005 A CN 201710112005A CN 108506114 A CN108506114 A CN 108506114A
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- oil sump
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
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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
- F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
- F01M11/061—Means for keeping lubricant level constant
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
- F01M11/12—Indicating devices; Other safety devices concerning lubricant level
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/001—Heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
A kind of diluted device of reduction engine motor oil, including：Oil sump, for accommodating engine motor oil；Engine oil liquid level sensor, in oil sump and for sensing the engine oil level in oil sump；Engine oil pressure pickup, in oil sump and for sensing the engine oil pressure in oil sump；First pump is connected to oil sump and for the machine oil from machine oil tank to be pumped into oil sump；Second pump is connected to oil sump and can extract machine oil out from oil sump；Storage room, the machine oil for connecting with the second pump and being extracted out from oil sump for receiving the second pump, storage room are also connected to motor intake manifold；Heating device, in storage room and for indoor machine oil heating will to be stored into gas；Control unit of engine, for according to operation of the reception from the signal of engine oil liquid level sensor and engine oil pressure pickup control the first pump, the second pump and heating device.It can thoroughly solve the problems, such as that engine motor oil dilutes, and ensure that the scarce machine oil of engine institute can be supplemented.
Description
Technical field
The present invention relates to automobile engines, and in particular to the machine oil regulating device of automobile engine.
Background technology
Existing turbocharged engine is operating for a long time, and piston wear air leakage is caused to increase, big when operating in
Under the operating mode of load, fuel oil can not adequately burn so that part fuel oil has channeled to crankcase with the gas leakage of piston and caused
The dilution of machine oil.Since the dilution of machine oil is so that the lubrication of engine declines, engine performance reduces.
In the art, it has been suggested that several technical solutions solve the above problems.
In Chinese patent discloses CN105507983A, it is proposed that a kind of side for the oil dilution degree reducing engine
Case.The program provides by adjusting the position of gas handling system (AIS) air throttle, formation vacuum and to the crankcase of boosting engine
Vacuum, to reinforce fuel from the evaporation in engine oil, to reduce the oil dilution degree of engine.But the program can not
Oil dilution phenomenon is thoroughly solved, oil dilution is only reduced and diluted machine oil is not handled.In addition, the program
It is only applicable to naturally aspirated engine, and the turbocharged engine being commonly used can not be applied to.
In Chinese patent discloses CN105240087A, it is proposed that a kind of to prevent hair by extracting the gas in crankcase
The scheme of the degree of the oil dilution of motivation.The program by reducing the oil dilution of engine with different air-fuel ratios,
Machine oil continuation to be prevented by extracting the implication in crankcase thinning again.But the program equally can not thoroughly solve oil dilution
Phenomenon also only reduces oil dilution and does not handle diluted machine oil.In addition, the program is also to be only applicable to certainly
Right aspirated engine, and the turbocharged engine being commonly used can not be applied to.
Therefore, this field needs one kind that can thoroughly solve the problems, such as that engine motor oil dilutes, and ensures the scarce machine of engine institute
Oil can be supplemented, so that the technical solution that engine can run well.
Invention content
The main object of the present invention is can to solve engine motor oil dilution, and ensure that the scarce machine oil of engine institute can be timely
It is supplemented, so that engine can be operated normally.
Specifically, object above is realized by providing a kind of diluted device of reduction engine motor oil.Specifically,
The device includes：
Oil sump, the oil sump is for accommodating engine motor oil；
Engine oil liquid level sensor, the engine oil liquid level sensor are located in the oil sump and for sensing the oil sump
Interior engine oil level；
Engine oil pressure pickup, the engine oil pressure pickup are located in the oil sump and for sensing the oil sump
Interior engine oil pressure；
First pump, first pump is connected to the oil sump and is connected to machine oil tank by first pipe, and being used for will
Machine oil from machine oil tank is pumped into the oil sump；
Second pump, second pump are connected to the oil sump and are connected to the storage room, and energy by second pipe
Machine oil is extracted out from the oil sump；
Storage room, the storage room are connected with second pump and are extracted out from the oil sump for receiving second pump
Machine oil, the storage room is also connected to motor intake manifold；
Heating device, the heating device be located in the storage room and for by the indoor machine oil heating of storage at
Gas；
Control unit of engine, the control unit of engine be used for according to receiving from the engine oil liquid level sensor and
The signal of the engine oil pressure pickup controls the operation of first pump, the second pump and the heating device.
In a preferred embodiment, check valve is equipped between the storage room and the motor intake manifold.
In a preferred embodiment, first pump and second pump are variable-displacement pump.
In a preferred embodiment, the aperture of first pump and second pump is according to the institute in the oil sump
The signal for stating engine oil liquid level sensor is controlled so that the engine oil level in the oil sump remains at the setting
Value.
In a preferred embodiment, the heating device is resistance wire, and is controlled by electromagnetic switch.
On the other hand, this which aspect also provides a kind of using the above-mentioned apparatus reduction diluted method of engine motor oil, including
Following steps：
(1) control unit of engine determines that automobile is in energized state；
(2) control unit of engine is determined according to the signal from the engine oil liquid level sensor in the oil sump
Liquid level whether be higher than setting value, if liquid level in the oil sump is higher than setting value, enable second pump, will be described
Machine oil in oil sump is evacuated to the storage room, until the liquid level in the oil sump is down to the setting value, deactivates described the
Two pumps；
(3) start engine；
(4) control unit of engine determines that the engine is in running order；
(5) control unit of engine is determined according to the signal from the engine oil pressure pickup in the oil sump
Engine oil pressure whether less than default oil pressure value, if the engine oil pressure in the oil sump is not less than default oil pressure value, institute
It states the first pump and second pump does not enable, and the heating device does not work；If the engine oil pressure in the oil sump is low
It in default oil pressure value, then controls engine nozzle and reduces distributive value, reduce air-fuel ratio, and enable first pump, institute simultaneously
The second pump and the heating device are stated, the heating device at gas and leads to the indoor machine oil heating of storage described
Motor intake manifold；
(6) whether the control unit of engine detection engine pinking and detects whether the engine oil pressure reaches default
Oil pressure value deactivates described first and pumps, is described if detecting that combustion knock or the engine oil pressure reach default oil pressure value
Second pump and the heating device.
In a preferred embodiment, the check valve keeps closing when second pump and the heating device do not work
It closes, to prevent the air for leading to the motor intake manifold to be passed through the storage room.
In a preferred embodiment, start with described from the storage room to the gas flow of the motor intake manifold
The ratio between total air inflow of machine inlet manifold is less than 13%.
In a preferred embodiment, the aperture of first pump and second pump is by the control unit of engine
(ECU) it is controlled according to the signal of the engine oil liquid level sensor in the oil sump so that in the oil sump
Liquid level remain at the setting value.
In a preferred embodiment, after the start of engine, first pump and second pump while and synchronous fortune
Row.
The present invention utilizes the engine oil pressure in engine sump tank for reducing the diluted device and method of engine motor oil
Sensor detect machine oil dilute strength, oil dilution to a certain extent in the case of recycle make air-fuel ratio lean raising start
Temperature in machine cylinder and make engine stop oil dilution and ensure that pinking do not occur for engine, while and passing through and inject new machine
Oil is to ensure that the machine oil needed for engine can be met.
Description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail, wherein：
Fig. 1 shows the schematic diagram for reducing the diluted device of engine motor oil according to the present invention；
Fig. 2 shows the flow charts according to the present invention for reducing the diluted method of engine motor oil；And
Fig. 3 shows the action relationships for reducing each component of the diluted device of engine motor oil according to the present invention.
Reference numeral：
1 reduces the diluted device of engine motor oil
2 oil sumps
3 storage rooms
4 heating devices
5 oil rules
6 first pipes
7 second pipes
A first is pumped
B second is pumped
C engine oil liquid level sensors
D check valves
E engine oil pressure pickups
F electromagnetic switch
ECU control unit of engine
Specific implementation mode
When the present invention detects that the engine oil pressure in oil sump is less than default oil pressure value by control unit of engine, start
Machine control unit, which sends out signal, makes air-fuel ratio enleanment, and atomizer is made to reduce distributive value, to improve the temperature in cylinder, allows and burns more
Fully, unburned leaking gasoline is thus avoided to enter machine oil.In addition, when air-fuel ratio lean, cause fuel concentration low, burning speed
Rate causes internal cylinder temperature to get higher slowly, is got higher using temperature to make the water in machine oil and gasoline evaporate.Thereby, it is possible to prevent machine
Oil continues to be diluted.In addition, also using pump diluted machine oil pump out again by heat, make its become gas enter engine into
Gas manifold enters back into cylinder makes it burn by high temperature.
In addition, when above-mentioned pump work, the machine oil that supplement lacks into oil sump is pumped with another, until engine oil pressure reaches
When default oil pressure value, then it is stopped.
Illustrate the operation principle of the reduction diluted devices and methods therefor of engine motor oil of the present invention below in conjunction with the accompanying drawings.
Referring to Fig.1, it is shown according to the present invention for reducing the diluted device of engine motor oil 1.
The device 1 includes the oil sump 2 for accommodating machine oil.Machine oil in the oil sump 2 is past with crankshaft and piston
Multiple movement is brought into engine crankcase, to play the role of lubricating crankcase components.Machine oil is usually equipped in oil sump 2
Ruler 5, so that operating personnel observe engine oil level.
In addition, in the present invention, it is additionally provided with engine oil liquid level sensor C and engine oil pressure pickup e in the oil sump 2,
Wherein engine oil liquid level sensor C is used to sense the engine oil level in oil sump 2, and engine oil pressure pickup e is for sensing oily bottom
Engine oil pressure in shell 2.In addition, being additionally provided with the first pump a, first pump a is connected to oil sump 2 by pipeline, and passes through first
Pipeline 6 is connected to machine oil tank, and can be used for that oil sump 2 will be pumped into from the machine oil of machine oil tank.Engine oil level in oil sump 2
When less than setting value, the first pump a can be enabled to supplement machine oil.The device 1 further includes the second pump b, and second pump b passes through pipeline
It is connected to oil sump 2, and storage room is connected to by second pipe 7, and can be used for from oil sump 2 extracting machine oil out.This second
The outlet of pump b is also connected to storage room 3 by pipeline, to be pumped into the machine oil extracted out from oil sump 2 and be stored in storage room 3
It is interior.Heating device 4 is additionally provided in storage room 3, which is used for the machine oil heating in storage room 3 into gas.It should add
Thermal 4 is usually Resistant heating device, and its connecting and disconnecting of the circuit is controlled by the opening and closing of electromagnetic switch f connected in series.
Preferably, first pipe 6 and second pipe 7 are arranged relative to machine oil shell 2 corresponding to the scale above and below oil rule
Position among line.
In addition, storage room 3 is also connected to motor intake manifold by pipeline, so can will in storage room 3 heater
The gas that oil is formed leads to motor intake manifold, and enters cylinder with air inlet gas, and falls in combustor inner cylinder.This
Outside, which further includes control unit of engine ECU, and control unit of engine ECU is passed with the engine oil level in oil sump 2
Sensor C and engine oil pressure pickup e associations, and the sensing signal from them can be received.Meanwhile the control unit of engine
ECU is also associated with the first pump a and the second pump b to control its startup and shut down.In addition, control unit of engine ECU is also controlled
The break-make of heating device 4, such as realized by controlling the opening and closing of electromagnetic switch f.
In addition, in a preferred embodiment, check valve is being equipped with out of storage room 3 leads to motor intake manifold pipeline
D, to when need not be by heating machine oil generates in storage room 3 gas access to engine inlet manifold, prevent engine into
Gas in gas manifold is passed through storage room 3 and causes inlet airflow of cylinder in engine insufficient.
The concrete operations of the device of the invention 1 are described hereinafter.
First, after determining that automobile is in energized state by control unit of engine ECU, according in oil sump 2
The sensing signal of engine oil liquid level sensor C come determine the liquid level in oil sump 2 whether be higher than setting value.If in oil sump 2
Liquid level is higher than setting value, i.e., when oil level therein is excessive, control unit of engine ECU sends out control instruction to the second pump b, makes
Second pump b is opened, to which the extra machine oil in oil sump 2 is drawn to storage room 3.When the sense according to engine oil liquid level sensor C
When survey signal determines that the liquid level in machine oil shell 2 is down to setting value, i.e., when extra machine oil has been extracted, control unit of engine ECU
Control instruction is sent out to the second pump b, stops the operation of the second pump b.
The process usually can be quickly completed, to which in engine start, the engine oil level in oil sump 2 is in setting
Value.In this process, engine and not actuated, heating device 4 does not work, and only the machine oil pumped out is stored in storage room.
After vehicle launch, whether control unit of engine ECU detection engines work, so that it is determined that engine is in work
State.Then, the oil pressure in oil sump 2 is judged according to the sensing signal of the engine oil pressure pickup e in oil sump 2
Whether power is less than default oil pressure value.If the engine oil pressure in oil sump 2 is default oil pressure value, show the machine in oil sump 2
Oil not by the gasoline leaked from cylinder dilute or dilute strength within the allowable range, then first pump a and second pump b
It is maintained at dead status, heating device 4 does not also work, engine work.If the engine oil pressure in oil sump 2 is less than pre-
If oil pressure value, then show that the machine oil in oil sump 2 is diluted by the gasoline leaked from cylinder.
Since the density of gasoline is less than the density of machine oil, when due to piston wear, unburned fuel leakage to song
When axle box, it has just been mixed into gasoline in machine oil, machine oil is caused to be diluted, and the oil pressure of machine oil and density is caused to reduce.And works as and start
When machine control unit ECU detects that the engine oil pressure p1 in oil sump 2 is less than default oil pressure value, that is, it is to determine that machine oil is dilute
It releases, and has diluted beyond allowable range.
At this point, control unit of engine ECU control engine nozzles reduce distributive value.When atomizer reduces oil spout,
Since current air inflow does not become, fuel is reduced, so air-fuel ratio can be thinning.In air-fuel ratio lean, fuel concentration is low, combustion
Burn rate causes internal cylinder temperature to get higher slowly, is got higher using temperature to make the gasoline in machine oil evaporate.In addition, reducing air-fuel energy
Enough make the fuel more completely burned in cylinder, therefore does not have unburned fuel and leak into crankcase.Oil spout as a result,
Mouth, which reduces oil spout, can prevent machine oil from continuing to dilute.
At the same time, control unit of engine ECU starts the first pump a and the second pump b simultaneously, and electromagnetic switch f is closed
So that heating device 4 is started to work.Wherein second pump b is used to the machine oil being diluted in oil sump 2 being pumped out to storage room,
And the first pump a is then used for the supplement into oil sump 2 and is thus kept in machine oil shell 2 always usually from the new machine oil of machine oil tank
Accommodate the machine oil that liquid level reaches setting value.The machine oil being pumped in storage room 3 is heated by heating device 4 and becomes gas.By
Negative pressure at the raising inlet manifold with rotating speed can increase, the pressure and storage that the second pump b is generated in storage room 3
The increased air pressure by heating generation gas of 3 inner engine oil of room is deposited, the gas in storage room 3 is promoted to be leading to engine by pipeline
Then inlet manifold enters back into in-cylinder combustion and falls.
Preferably, in the case of being equipped with check valve d in the pipeline for leading to motor intake manifold, when in storage room 3
When pressure is higher than the pressure in motor intake manifold, check valve b is opened, to allow the gas in storage room 3 to notify engine
Inlet manifold.
However, in the above process, ceaselessly thinning air-fuel ratio can make delivery temperature get higher, engine can be caused in this way
Pinking occurs.Therefore, in this process, if control unit of engine ECU detects combustion knock signal, just stop empty
Combustion protects engine than thinning action, with this.
Meanwhile in above process, control unit of engine ECU continues to monitor the engine oil pressure in oil sump 2, once it is oily
Engine oil pressure in bottom case 2 reaches default oil pressure value, then illustrates that the machine oil in oil sump 2 can be used normally.At this time then
The first pump a and the second pump b are deactivated, and electromagnetic switch f is opened so that heating device 4 is stopped.
In addition, in order to ensure entering the gaseous mixture normal combustion in cylinder, and ensure the normal operation of engine,
From storage room 3 to the ratio between total air inflow O2 of the gas flow Q1 of the motor intake manifold and motor intake manifold Q1/
Q2 is usually less than 13%.
Preferably, during diluted oil is extracted out and supplements new machine oil in by storage room 3, the first pump a and the
The aperture of two pump b is controlled by control unit of engine ECU according to the signal of the engine oil liquid level sensor C in oil sump 2
System so that the liquid level in oil sump 2 remains at setting value.Therefore, the first pump a and the second pump b are during engine is run
Using simultaneously and run simultaneously.
It is also pointed out that oil pressure value when the normal oil pressure value in oil sump 2 is not diluted completely for machine oil, according to difference
Engine model and operating mode will be different, usually within the scope of 320-380kpa.And control unit of engine ECU is being examined
When measuring the oil pressure in oil sump 2 less than default oil pressure value, air-fuel ratio can just be reduced.The default oil pressure value is less than normal oil pressure
Value.For example, if when engine operates at 3000rpm, normal oil pressure value when machine oil does not dilute should be about
350kpa, when machine oil dilutes, engine oil pressure can be less than 350kpa, when pressure is less than default oil pressure value 300pa, start
The first pump a of machine control unit ECU controls and the second pump b work.Certainly, which can be according to actual needs by this field
Technical staff specifically determine.
The ordinary air-fuel ratio of engine is typically based on engine speed and load and is obtained according to the tracing table that manufacturer provides.
When needing to reduce air-fuel ratio, ordinary air-fuel ratio can be finally obtained thinning air-fuel ratio plus coefficient lambda.The coefficient lambda is usually
Negative also has different values under different engine speed and load.It can work out λ's according to engine speed and load
Tracing table, in order to which control unit of engine ECU obtains required corresponding λ value when reducing air-fuel ratio from the tracing table.If
When control unit of engine ECU detects that engine oil pressure is not less than default oil pressure value, λ is equal to 0.
The action relationships of all parts of apparatus of the present invention are as shown in Figure 3.
It can be seen from the figure that when at the t1 moment, starting switch is opened, after engine start, when engine oil pressure is less than
When limiting value, the first pump a, the second pump b are opened, and electromagnetic switch f is closed, and machine oil hydraulic is stepped up during secondary.And the
The aperture of one pump a and the second pump b keep synchronizing.The a bit of of engine oil pressure is only shown in figure.
Although the structure and operation principle of the present invention are illustrated above in association with preferred embodiment, this technology
Those of ordinary skill in field is it should be appreciated that above-mentioned example is intended merely to explanation, and cannot function as the limit to the present invention
System.Therefore, it can modify to the present invention in the spirit of claims and modification, these modifications and variations
It will all fall within the scope of required by claims of the present invention.
Claims (10)
1. the diluted device of a kind of reduction engine motor oil (1), including：
Oil sump (2), the oil sump (2) is for accommodating engine motor oil；
Engine oil liquid level sensor (C), the engine oil liquid level sensor (C) are located in the oil sump (2) and described for sensing
Engine oil level in oil sump (2)；
Engine oil pressure pickup (e), the engine oil pressure pickup (e) are located in the oil sump (2) and described for sensing
Engine oil pressure in oil sump (2)；
First pump (a), first pump (a) are connected to the oil sump (2) and are connected to machine oil tank by first pipe (6),
And for the machine oil from machine oil tank to be pumped into the oil sump (2)；
Second pump (b), second pump (b) are connected to the oil sump (2) and are connected to the storage room by second pipe (7)
(3), and machine oil can be extracted out from the oil sump (2)；
Storage room (3), the storage room (3) connect with second pump (b) and for receiving second pump (b) from the oil
The machine oil of bottom case (2) extraction, the storage room (3) are also connected to motor intake manifold；
Heating device (4), the heating device (4) are located in the storage room (3) and are used for the machine in the storage room (3)
Oil is heated into gas；
Control unit of engine (ECU), the control unit of engine (ECU) are used to be passed from the engine oil level according to reception
Sensor (C) and the signal of the engine oil pressure pickup (e) control first pump (a), the second pump (b) and heating dress
Set the operation of (4).
2. the apparatus according to claim 1, which is characterized in that
Check valve (d) is equipped between the storage room (3) and the motor intake manifold.
3. the apparatus according to claim 1, which is characterized in that
First pump (a) and described second pumps (b) as variable-displacement pump.
4. the apparatus according to claim 1, which is characterized in that
First pump (a) and described second pumps the aperture of (b) according to the engine oil level biography in the oil sump (2)
The signal of sensor (C) is controlled so that the engine oil level in the oil sump (2) remains at the setting value.
5. the apparatus according to claim 1, which is characterized in that
The heating device (4) is resistance wire, and is controlled by electromagnetic switch (f).
6. a kind of reducing the diluted method of engine motor oil using device as claimed in one of claims 1-5, including following
Step：
(1) control unit of engine determines that automobile is in energized state；
(2) control unit of engine determines the oil sump (2) according to the signal from the engine oil liquid level sensor (C)
Whether interior liquid level is higher than setting value, if the liquid level in the oil sump (2) is higher than setting value, enables second pump
(b), the machine oil in the oil sump (2) is evacuated to the storage room (3), until the liquid level in the oil sump (2) is down to institute
Setting value is stated, second pump (b) is deactivated；
(3) start engine；
(4) control unit of engine determines that the engine is in running order；
(5) control unit of engine determines the oil sump (2) according to the signal from the engine oil pressure pickup (e)
Whether interior engine oil pressure is less than default oil pressure value, if the engine oil pressure in the oil sump (2) is not less than default oil pressure value,
Then first pump (a) and second pump (b) do not enable, and the heating device (4) does not work；If the oil sump
(2) engine oil pressure in is less than default oil pressure value, then controls engine nozzle and reduce distributive value, reduce air-fuel ratio, and simultaneously
Enable first pump (a), second pump (b) and the heating device (4), the heating device (4) is by the storage
Machine oil heating in room (3) at gas and leads to the motor intake manifold；
(6) whether the control unit of engine detection engine pinking and detects whether the engine oil pressure reaches default oil pressure
Value deactivates first pump (a), described if detecting that combustion knock or the engine oil pressure reach default oil pressure value
Second pump (b) and the heating device (4).
7. according to the method described in claim 6, it is characterized in that,
Check valve (d) is equipped between the storage room (3) and the motor intake manifold, the check valve (d) is described
Second pump (b) and the heating device (4) remain turned-off when not working, to prevent from leading to the air of the motor intake manifold
It is passed through the storage room (3).
8. according to the method described in claim 6, it is characterized in that,
From the storage room (3) to total air inlet of the gas flow and the motor intake manifold of the motor intake manifold
The ratio between amount is less than 13%.
9. according to the method described in claim 6, it is characterized in that,
The aperture of first pump (a) and second pump (b) is by the control unit of engine (ECU) according to from the oil
The signal of the engine oil liquid level sensor (C) in bottom case (2) is controlled so that the engine oil level in the oil sump (2)
Remain at the setting value.
10. according to the method described in claim 6, it is characterized in that,
After the start of engine, first pump (a) and described second pumps (b) while and running simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710112005.7A CN108506114A (en) | 2017-02-28 | 2017-02-28 | Reduce the diluted device and method of engine motor oil |
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|---|---|---|---|
| CN201710112005.7A CN108506114A (en) | 2017-02-28 | 2017-02-28 | Reduce the diluted device and method of engine motor oil |
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| CN108506114A true CN108506114A (en) | 2018-09-07 |
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| CN201710112005.7A Withdrawn CN108506114A (en) | 2017-02-28 | 2017-02-28 | Reduce the diluted device and method of engine motor oil |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114645747A (en) * | 2021-04-30 | 2022-06-21 | 长城汽车股份有限公司 | Engine oil pump control method and system and vehicle |
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| CN114645747A (en) * | 2021-04-30 | 2022-06-21 | 长城汽车股份有限公司 | Engine oil pump control method and system and vehicle |
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| CN115126567B (en) * | 2022-07-27 | 2023-09-15 | 重庆长安汽车股份有限公司 | System and method for reducing engine oil dilution |
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