CN105952520A - Method and device for controlling piston cooling system - Google Patents
Method and device for controlling piston cooling system Download PDFInfo
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- CN105952520A CN105952520A CN201610459790.9A CN201610459790A CN105952520A CN 105952520 A CN105952520 A CN 105952520A CN 201610459790 A CN201610459790 A CN 201610459790A CN 105952520 A CN105952520 A CN 105952520A
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- Prior art keywords
- piston
- cooling device
- control valve
- oil
- piston cooling
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention provides a method and a device for controlling a piston cooling system. The method comprises the following steps: an acquiring step, namely acquiring parameters of an engine connected with the piston cooling system; and a judging step, namely if judging that the parameters meet preset conditions, controlling a piston cooling device control valve in the piston cooling system to be electrified, wherein if the piston cooling device control valve is closed, the piston cooling system does not inject oil. The method and the device can solve the problems in the prior art that aiming at a working condition of no need of oil injection, unreasonable injection is caused by adoption of a mechanical piston nozzle for injecting; control on the piston cooling system is more accurate, thus saving emission and oil consumption; and the engine warming-up speed is promoted, the frictional loss of the engine in a working condition with high speed and low load can be reduced, and piston knocking noise in idling of the engine is reduced.
Description
Technical field
The present invention relates to vehicular field, particularly relate to a kind of method controlling piston looling system and dress
Put.
Background technology
In prior art, in order to reduce the purpose of discharge and oil consumption, need in electromotor
Each system is made and being controlled more accurately, it is clear that traditional frame for movement cannot meet this requirement.
Traditional mechanical piston nozzle is that the oil pressure by electromotor controls, when the oil of electromotor
When pressure reaches to open pressure, mechanical piston nozzle is opened, when the oil pressure of electromotor is less than closing oil pressure
Time, mechanical piston nozzle is closed.And when electromotor is in cold start-up and high speed underload, due to oil
Pressing higher, mechanical piston nozzle can be opened, and situation now, it is not required to spray mechanical piston
Mouth is opened, and mechanical piston nozzle is opened in the case of need not open, and causes irrational injection,
Add discharge and oil consumption.
Accordingly, it would be desirable to improve defect mentioned above.
Summary of the invention
Based on problem above, the present invention proposes a kind of method and apparatus controlling piston looling system,
By the parameter obtained with control the electromotor that piston looling system is connected, if it is pre-to judge that parameter meets
If condition, then controlling the piston cooling device control valve energising in piston looling system, piston cools down
Device control valve is closed, and the mode of piston looling system not oil spout solves in prior art, pin
To need not under the operating mode of oil spout, mechanical piston nozzle sprays, and causes irrational injection
Problem；Make the control to controlling piston looling system more accurate, thus save discharge and oil consumption；
Improve engine warm motor speed, reduce electromotor friction loss under high speed running on the lower load and
Decrease engine idle piston knock noise.
On the one hand, the present invention proposes a kind of method controlling piston looling system, including:
Obtaining step, including: obtain the parameter of the electromotor being connected with described piston looling system；
Judge step, including: if it is pre-conditioned to judge that described parameter meets, then control described piston
Piston cooling device control valve energising in cooling system, the closedown of described piston cooling device control valve,
The not oil spout of described piston looling system.
Additionally, described parameter includes engine speed, engine load or engine oil temperature.
Additionally, described, if to judge that described parameter meets pre-conditioned, specifically includes: start described in if
The coordinate points that machine rotating speed and described engine load are formed is positioned at the not oil spout in speed load coordinate system
Region, then judge that described parameter meets described pre-conditioned.
Additionally, described, if to judge that described parameter meets pre-conditioned, specifically includes: start described in if
Machine oil temperature less than presetting oil temperature threshold value, then judges that described parameter meets described pre-conditioned.
Additionally, described piston looling system also includes piston cooling device and oil duct, described in make institute
State piston cooling device control valve to close, make the not oil spout of described piston looling system, specifically include:
The two ends of described oil duct connect with described piston cooling device control valve and described piston cooling device respectively
Connect；
After described piston cooling device control valve is closed, oil-free in described oil duct, make described piston cold
Radiator cooler can not oil spout.
Additionally, described method also includes time detecting step, including: if detecting, described piston is cold
The lasting conduction time of radiator cooler control valve more than presetting first time period, then controls described piston cold
Radiator cooler control valve power-off.
Additionally, after described control described piston cooling device control valve power-off, described method is also
Including: after presetting for the second time period, control the energising of described piston cooling device control valve.
On the other hand, the present invention also proposes a kind of device controlling piston looling system, including:
Acquisition module, is used for: obtain the parameter of the electromotor being connected with described piston looling system；
Judge module, is used for: if it is pre-conditioned to judge that described parameter meets, then control described piston
Piston cooling device control valve energising in cooling system, the closedown of described piston cooling device control valve,
The not oil spout of described piston looling system.
Additionally, described parameter includes engine speed, engine load or engine oil temperature.
Additionally, described, if to judge that described parameter meets pre-conditioned, specifically includes: start described in if
The coordinate points that machine rotating speed and described engine load are formed is positioned at the not oil spout in speed load coordinate system
Region, then judge that described parameter meets described pre-conditioned.
Additionally, described, if to judge that described parameter meets pre-conditioned, specifically includes: start described in if
Machine oil temperature less than presetting oil temperature threshold value, then judges that described parameter meets described pre-conditioned.
Additionally, described piston looling system also includes piston cooling device and oil duct, described in make institute
State piston cooling device control valve to close, make the not oil spout of described piston looling system, specifically include:
The two ends of described oil duct connect with described piston cooling device control valve and described piston cooling device respectively
Connect；
After described piston cooling device control valve is closed, oil-free in described oil duct, make described piston cold
Radiator cooler can not oil spout.
Additionally, described method also includes time detecting module, it is used for: if detecting, described piston is cold
The lasting conduction time of radiator cooler control valve more than presetting first time period, then controls described piston cold
Radiator cooler control valve power-off.
Additionally, after described control described piston cooling device control valve power-off, described method is also
Including: after presetting for the second time period, control the energising of described piston cooling device control valve.
By using technique scheme, have the advantages that
By the parameter obtained with control the electromotor that piston looling system is connected, if judging, parameter is full
Foot is pre-conditioned, then control the piston cooling device control valve energising in piston looling system, piston
Chiller control valve is closed, and the mode of piston looling system not oil spout solves in prior art,
For need not under the operating mode of oil spout, mechanical piston nozzle sprays, and causes irrational injection
Problem；Make the control to controlling piston looling system more accurate, thus save discharge and oil
Consumption；Improve engine warm motor speed, reduce electromotor friction damage under high speed running on the lower load
Become estranged and decrease engine idle piston knock noise.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method controlling piston looling system according to an embodiment of the invention；
Fig. 2 is the schematic diagram of piston looling system in accordance with another embodiment of the present invention；
Fig. 3 is the schematic diagram of speed load coordinate system in accordance with another embodiment of the present invention；
Fig. 4 is the flow process of the method controlling piston looling system in accordance with another embodiment of the present invention
Figure；
Fig. 5 is the block diagram of the device controlling piston looling system in accordance with another embodiment of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiments and accompanying drawing, the present invention is further described in detail.Its
It is only intended to elaborate specific embodiments of the present invention, the present invention is not produced any restriction,
Protection scope of the present invention is as the criterion with claims.
With reference to Fig. 1, the present invention proposes a kind of method controlling piston looling system, including:
Obtaining step S001, including: obtain the parameter of the electromotor being connected with piston looling system；
Judge step S002, including: if it is pre-conditioned to judge that parameter meets, then control piston cooling
Piston cooling device control valve energising in system, the closedown of piston cooling device control valve, piston is cold
But system not oil spout.
In obtaining step S001, first obtain the parameter of the electromotor being connected with piston looling system,
Electronic control unit ECU (Electronic Control Unit) can be passed through and obtain the ginseng of electromotor
Number, parameter includes: engine speed, engine load or engine oil temperature.
In judging step S002, if it is pre-conditioned to judge that parameter meets, then make piston looling system
Not oil spout.In one of which embodiment, with reference to Fig. 3, in speed load coordinate system, transverse axis
For engine speed, the longitudinal axis is engine load, the engine speed in speed load coordinate system
It is positioned at speed load with the coordinate points (engine speed, engine load) of engine load composition to sit
Mark system in piston looling system not oil spout region 301 time, then it is assumed that engine speed now and send out
Engine load meets pre-conditioned.302 is piston looling system oil spout region, and 303 is outside electromotor
Characteristic curve.
In one of which embodiment, when engine oil temperature is less than presetting oil temperature threshold value, as started
Machine oil temperature is 20 degree, and presetting oil temperature threshold value is 30 degree, then judge that parameter meets pre-conditioned.
In one of which embodiment, with reference to Fig. 2, control piston looling system and include: piston is cold
Radiator cooler control valve 10, piston cooling device control valve oil-in 101, piston cooling device control
Valve oil-out 102, piston cooling device oil duct 20 and piston cooling device 30.When judging that parameter is full
When foot is pre-conditioned, then piston cooling device control valve 10 is made to be energized, piston cooling device control valve
Piston cooling device control valve 10 is made to close after 10 energisings, piston cooling device control valve oil-in
101 do not connect with piston cooling device control valve oil-out 102, now piston cooling device oil duct
Oil-free in 20, makes the piston cooling device 30 can not oil spout.When piston cooling device control valve 10 is broken
During electricity, piston cooling device control valve 10 opens, piston cooling device control valve oil-in 101 with
Piston cooling device control valve oil-out 102 connects, and now has oil in piston cooling device oil duct 20
Supply, makes piston cooling device 30 energy oil spout.
In piston looling system, introduce Electronic Control, and formulate control strategy accurately to control piston
The oil spout opportunity of chiller 30, meet under high loads to the knock control of electromotor, at Gao Gong
Effectively reduce under rate piston temperature, reduce when cold start-up to the unnecessary and harmful cooling of piston,
When high speed underload, reduce unnecessary hydraulic work and send out engine friction horsepower；At special operation condition
Under such as: cold start-up and keep idling, oil pressure do not have sufficiently high, the overall background noise of electromotor is less
Or in the case of the piston lacking lubrication sends obvious knocking noise, it is possible to make piston lubrication, solve
Determine the problem causing noise because piston lubrication is not enough.
The major function of piston cooling device 30 is: reduces piston temperature, improve pinking border；Fall
Low piston maximum temperature, prevents piston fatigue to lose efficacy；Lubrication piston pin.
By the parameter obtained with control the electromotor that piston looling system is connected, if judging, parameter is full
Foot is pre-conditioned, then control the piston cooling device control valve energising in piston looling system, piston
Chiller control valve is closed, and the mode of piston looling system not oil spout solves in prior art,
For need not under the operating mode of oil spout, mechanical piston nozzle sprays, and causes irrational injection
Problem；Make the control to controlling piston looling system more accurate, thus save discharge and oil
Consumption；Improve engine warm motor speed, reduce electromotor friction damage under high speed running on the lower load
Become estranged and decrease engine idle piston knock noise.
In one of which embodiment, parameter includes engine speed, engine load or starts
Machine oil temperature.With reference to Fig. 3, in speed load coordinate system, when coordinate points, (engine speed is started
Machine load) when being positioned at piston looling system not oil spout region 301, now control piston looling system
Not oil spout, when coordinate points (engine speed, engine load) is positioned at piston looling system oil spout
During region 302, now control piston looling system oil spout, by engine speed and electromotor
Load the two parameter judges simultaneously, thus controls piston looling system.
When engine oil temperature is less than when presetting oil temperature threshold value, control piston looling system not oil spout.
In one of which embodiment, if it is pre-conditioned to judge that parameter meets, specifically include: if
The coordinate points that engine speed and engine load are formed is positioned at the not oil spout in speed load coordinate system
Region, then judge that parameter meets pre-conditioned.By this judgment mode, make the work to not oil spout
What condition judged more accurately rather than judges simply by a parameter.
In the present embodiment, in the oil spout region of piston looling system defined in speed load coordinate system
Not oil spout region, obtains engine speed and the engine load of sensor acquisition by ECU,
ECU, according to the not oil spout region defined in speed load coordinate system and oil spout region, cools down for piston
Device carries out real-time judge the need of injection, it is achieved the control to piston looling system.
Not oil spout region in definition speed load coordinate system and oil spout region, the data needed to refer to
Have: piston real-time temperature field measurement data and combustion knock data boundary.The operating mode needed to refer to
Have: higher than preset the operating mode of piston temperature, the operating mode that combustion knock is easily sent out, special operating mode and/
Or piston cooling device control valve needs operating mode to be protected.
Higher than presetting the operating mode of piston temperature, operating mode that combustion knock is easily sent out or special operating mode
Time, need oil spout.
In one of which embodiment, if it is pre-conditioned to judge that parameter meets, specifically include: if
Engine oil temperature less than presetting oil temperature threshold value, then judges that parameter meets pre-conditioned.Preset oil temperature threshold
Value such as 40 degree.
In one of which embodiment, piston looling system also includes piston cooling device and oil
Road, makes piston cooling device control valve close, makes piston looling system not oil spout, specifically include:
The two ends of oil duct are connected with piston cooling device control valve and piston cooling device respectively；
After piston cooling device control valve is closed, oil-free in oil duct, make piston cooling device not spray
Oil.By controlling the opening and closing of piston cooling device control valve, control whether oil duct has oil
Supply, thus control whether oil spout.This mode makes the control to oil spout convenient and accurate.
In one of which embodiment, method also includes time detecting step, including: if detection
It is more than the lasting conduction time to piston cooling device control valve and presets first time period, then control to live
Plug chiller control valve power-off.Preset first time period such as 3600 seconds, when piston cooling device control
The lasting conduction time of valve processed, more than when presetting first time period, needs piston cooling device control
Valve carries out power-off protection, prevents the piston cooling device control valve working time to be burned too for a long time.
In one of which embodiment, after controlling piston cooling device control valve power-off, side
Method also includes: after presetting for the second time period, controls the energising of piston cooling device control valve.When
Piston cooling device control valve is after power-off is protected, through presetting the second time period such as 10 seconds,
Can again make piston cooling device control valve be energized, work on.
With reference to Fig. 4, the flow process of one embodiment of the invention is described.
Step S401, according to the not oil spout in the data definition speed load coordinate system under different operating modes
Region and oil spout region；
Step S402, obtains, by ECU, engine speed and the engine load that sensor acquisition arrives
Data；
Step S403, if judging, coordinate points (engine speed, engine load data) is positioned at not
Oil spout region, then ECU controls the energising of piston cooling device control valve, makes piston cooling device control
Valve cuts out, piston cooling device not oil spout；
Step S404, obtains engine oil temperature by ECU；
Step S405, if judging engine oil temperature more than presetting oil temperature threshold value, then ECU controls piston
Chiller control valve power-off, makes piston cooling device control valve open, piston cooling device oil spout.
With reference to Fig. 5, the present invention proposes a kind of device controlling piston looling system, including:
Acquisition module 501, is used for: the parameter obtaining with controlling the electromotor that piston looling system is connected；
Judge module 502, is used for: if it is pre-conditioned to judge that parameter meets, then cold by controlling piston
But the energising of the piston cooling device control valve in system, makes piston cooling device control valve close, makes
Piston looling system not oil spout.
In one of which embodiment, parameter includes engine speed, engine load or starts
Machine oil temperature.
In one of which embodiment, if it is pre-conditioned to judge that parameter meets, specifically include: if
The coordinate points that engine speed and engine load are formed is positioned at the not oil spout in speed load coordinate system
Region, then judge that parameter meets pre-conditioned.
In one of which embodiment, if it is pre-conditioned to judge that parameter meets, specifically include: if
Engine oil temperature less than presetting oil temperature threshold value, then judges that parameter meets pre-conditioned.
In one of which embodiment, make piston cooling device control valve close, make piston cool down
System not oil spout, specifically includes: control the two ends of oil duct in piston looling system respectively with piston
Chiller control valve and piston cooling device connect；
After piston cooling device control valve is closed, oil-free in oil duct, make piston cooling device not spray
Oil.
In one of which embodiment, method also includes time detecting module, is used for: if detection
It is more than the lasting conduction time to piston cooling device control valve and presets first time period, then control to live
Plug chiller control valve power-off.
In one of which embodiment, after controlling piston cooling device control valve power-off, side
Method also includes: after presetting for the second time period, controls the energising of piston cooling device control valve.
Above-described is only principle and the preferred embodiment of the present invention.It should be pointed out that, for this
For the those of ordinary skill in field, on the basis of the principle of the invention, it is also possible to make some its
Its modification, also should be regarded as protection scope of the present invention.
Claims (14)
1. the method controlling piston looling system, it is characterised in that including:
Obtaining step, including: obtain the parameter of the electromotor being connected with described piston looling system；
Judge step, including: if it is pre-conditioned to judge that described parameter meets, then control described piston
Piston cooling device control valve energising in cooling system, the closedown of described piston cooling device control valve,
The not oil spout of described piston looling system.
The method of control piston looling system the most according to claim 1, it is characterised in that:
Described parameter includes engine speed, engine load or engine oil temperature.
The method of control piston looling system the most according to claim 2, it is characterised in that:
Described, if to judge that described parameter meets pre-conditioned, specifically includes: if described engine speed
The not oil spout region that the coordinate points formed with described engine load is positioned in speed load coordinate system,
Then judge that described parameter meets described pre-conditioned.
The method of control piston looling system the most according to claim 2, it is characterised in that:
Described, if to judge that described parameter meets pre-conditioned, specifically includes: if described engine oil temperature
Less than presetting oil temperature threshold value, then judge that described parameter meets described pre-conditioned.
The method of control piston looling system the most according to claim 1, it is characterised in that:
Described piston looling system also includes piston cooling device and oil duct, described in make described piston
Chiller control valve is closed, and makes the not oil spout of described piston looling system, specifically includes: described oil
The two ends in road are connected with described piston cooling device control valve and described piston cooling device respectively；
After described piston cooling device control valve is closed, oil-free in described oil duct, make described piston cold
Radiator cooler can not oil spout.
6. according to the method controlling piston looling system described in any one of claim 1 to 5, its
It is characterised by:
Described method also includes time detecting step, including: if described piston cooling device being detected
The lasting conduction time of control valve more than presetting first time period, then controls described piston cooling device
Control valve power-off.
The method of control piston looling system the most according to claim 6, it is characterised in that:
After described control described piston cooling device control valve power-off, described method also includes:
After presetting for the second time period, control the energising of described piston cooling device control valve.
8. the device controlling piston looling system, it is characterised in that including:
Acquisition module, is used for: obtain the parameter of the electromotor being connected with described piston looling system；
Judge module, is used for: if it is pre-conditioned to judge that described parameter meets, then control described piston
Piston cooling device control valve energising in cooling system, the closedown of described piston cooling device control valve,
The not oil spout of described piston looling system.
The device of control piston looling system the most according to claim 8, it is characterised in that:
Described parameter includes engine speed, engine load or engine oil temperature.
The device of control piston looling system the most according to claim 9, it is characterised in that:
Described, if to judge that described parameter meets pre-conditioned, specifically includes: if described engine speed
The not oil spout region that the coordinate points formed with described engine load is positioned in speed load coordinate system,
Then judge that described parameter meets described pre-conditioned.
The device of 11. control piston looling systems according to claim 9, it is characterised in that:
Described, if to judge that described parameter meets pre-conditioned, specifically includes: if described engine oil temperature
Less than presetting oil temperature threshold value, then judge that described parameter meets described pre-conditioned.
The device of 12. control piston looling systems according to claim 8, it is characterised in that:
Described piston looling system also includes piston cooling device and oil duct, described in make described piston
Chiller control valve is closed, and makes the not oil spout of described piston looling system, specifically includes: described oil
The two ends in road are connected with described piston cooling device control valve and described piston cooling device respectively；
After described piston cooling device control valve is closed, oil-free in described oil duct, make described piston cold
Radiator cooler can not oil spout.
13. according to Claim 8 to the device controlling piston looling system described in 12 any one,
It is characterized in that:
Described method also includes time detecting module, is used for: if described piston cooling device being detected
The lasting conduction time of control valve more than presetting first time period, then controls described piston cooling device
Control valve power-off.
The device of 14. control piston looling systems according to claim 13, it is characterised in that:
After described control described piston cooling device control valve power-off, described method also includes:
After presetting for the second time period, control the energising of described piston cooling device control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459790.9A CN105952520A (en) | 2016-06-22 | 2016-06-22 | Method and device for controlling piston cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459790.9A CN105952520A (en) | 2016-06-22 | 2016-06-22 | Method and device for controlling piston cooling system |
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| CN105952520A true CN105952520A (en) | 2016-09-21 |
Family
ID=56903795
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| CN201610459790.9A Pending CN105952520A (en) | 2016-06-22 | 2016-06-22 | Method and device for controlling piston cooling system |
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| CN106988852A (en) * | 2017-05-05 | 2017-07-28 | 安徽杰曼汽车零部件有限公司 | A kind of cooling nozzles intelligence control system |
| CN112761807A (en) * | 2021-02-08 | 2021-05-07 | 联合汽车电子有限公司 | Fault diagnosis method, piston cooling system and vehicle |
| CN113356991A (en) * | 2020-03-04 | 2021-09-07 | 一汽解放汽车有限公司 | Piston cooling system with pressure detection function and filtering function |
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Application publication date: 20160921 |