CN108547678A - A kind of lubricating system, lubrication control method and automobile - Google Patents
A kind of lubricating system, lubrication control method and automobile Download PDFInfo
- Publication number
- CN108547678A CN108547678A CN201810278551.2A CN201810278551A CN108547678A CN 108547678 A CN108547678 A CN 108547678A CN 201810278551 A CN201810278551 A CN 201810278551A CN 108547678 A CN108547678 A CN 108547678A
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- Prior art keywords
- engine
- rotating speed
- oil pump
- electric oil
- controller
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Classifications
-
- 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
- F01M1/02—Pressure lubrication using lubricating pumps
-
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
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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
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
- F01M2001/0215—Electrical pumps
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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
The embodiment of the invention discloses a kind of lubricating system, lubrication control method and automobiles.Wherein, which includes：First greasing cycle circuit, including multiple friction pairs of the oil sump of connection, electric oil pump, main oil gallery and engine are recycled successively；Second greasing cycle circuit, including oil sump, electric oil pump, throttle valve and the booster of connection are recycled successively；Controller, including the first signal end and second signal end, first signal end is electrically connected with the control terminal of electric oil pump, second signal end is electrically connected with the control terminal of throttle valve, controller is used to control the rotating speed of the driving motor of electric oil pump, and the aperture of control throttle valve, to adjust the flow of the lubricating oil in the first greasing cycle circuit and the second greasing cycle circuit.While the technical solution of the embodiment of the present invention can so that friction is secondary and booster obtains sufficient lubrication, phenomena such as avoiding booster from altering oily, oil leak, and further avoid turbocharger bearing wear and damage.
Description
Technical field
The present invention relates to a kind of automobile technical field more particularly to lubricating system, lubrication control method and automobiles.
Background technology
Automobile engine provides power for automobile, is the heart of automobile, decides the dynamic property, economy, stabilization of automobile
Property and the feature of environmental protection.
The normal operation of engine be unable to do without the lubricating action of lubricating system.When engine works, lubricating system is continuously not
Disconnectedly the enough clean lubricating oil (or machine oil) of quantity by oil pipeline, be transported to the friction surface that all friction is secondary with
And (booster can will compress booster into the air before cylinder, to improve the density of air, make more air
Be filled in cylinder, to increase engine power) rotor bearing, to reduce frictional resistance, reduce power consumption, mitigate
Component wear achievees the purpose that improve engine functional reliability and durability.
In the prior art, lubricating system is controlled to the flow and pressure of the secondary lubricating oil conveyed with booster of friction to be unified
System, in engine shutdown process, if start and stop are excessively frequent, or startup rotating speed is excessively high or engine is shut down comparatively fast, is easy to lead
The problems such as causing booster to alter oil, oil leak, more severe patient also result in turbocharger bearing wear, or even damage booster.
Invention content
The embodiment of the present invention provides a kind of lubricating system, lubrication control method and automobile, be separately controlled lubricating system to
The secondary flow and pressure with booster conveying lubricating oil of friction so that while friction is secondary and booster obtains sufficient lubrication, keep away
Exempt from phenomena such as booster alters oil, oil leak, and prevent turbocharger bearing wear, protects booster.
In a first aspect, an embodiment of the present invention provides a kind of lubricating systems, including：
First greasing cycle circuit, including the oil sump of connection, electric oil pump, main oil gallery and engine are recycled successively
Multiple frictions are secondary；
Second greasing cycle circuit, including oil sump, electric oil pump, throttle valve and the booster of connection are recycled successively；
Controller, including the first signal end and second signal end, the first signal end are electrically connected with the control terminal of electric oil pump,
Second signal end is electrically connected with the control terminal of throttle valve, and controller is used to control the rotating speed of the driving motor of electric oil pump, and
The aperture for controlling throttle valve, to adjust the flow of the lubricating oil in the first greasing cycle circuit and the second greasing cycle circuit.
Further, further include solenoid valve, solenoid valve is set between the access that electric oil pump is connected to main oil gallery；
Controller further includes third signal end, and third signal end is electrically connected with the control terminal of solenoid valve, and controller is additionally operable to
Control the on off state of solenoid valve.
Further, controller is additionally operable in the first preset time period before an engine is started, controls solenoid valve and section
Stream valve is opened, and the rotational speed regulation for controlling the driving motor of electric oil pump is the first preset rotation speed.
Further, further include the first temperature sensor and Rotating speed measring module, the first temperature sensor is for detecting hair
The water temperature of the water cooling system of motivation, Rotating speed measring module are used to detect the rotating speed of engine；
Controller is additionally operable to during startup engine reaches the second preset rotation speed, and control solenoid valve is opened, according to water
The rotating speed of the driving motor of the water temperature of cooling system and the rotating speed control electric oil pump of engine, and turned according to the engine
Speed controls the aperture of the throttle valve.
Further, booster is exhaust-driven turbo-charger exhaust-gas turbo charger, which further includes second temperature sensor, for examining
Survey the temperature for the exhaust gas that engine is discharged into exhaust-driven turbo-charger exhaust-gas turbo charger；
Controller is additionally operable to after engine reaches the second preset rotation speed, and control solenoid valve is opened, according to water cooling system
Water temperature and engine rotating speed, control the rotating speed of the driving motor of electric oil pump, and according to the temperature of exhaust gas and engine
Rotating speed controls the aperture of throttle valve.
Further, controller is additionally operable in the second preset time period after engine stop, and control solenoid valve is closed,
It controls throttle valve to open, and the rotating speed of the driving motor according to the temperature of exhaust gas control electric oil pump.
Further, further include oil filter, oil filter is set to the access that oil sump is connected to electric oil pump
Between, oil filter is used for the impurity in filtering lubricant oil.
Second aspect, the embodiment of the present invention additionally provide a kind of automobile, including engine and any embodiment of the present invention carry
The lubricating system of confession.
Further, further include that motor, engine and motor provide hybrid power for the automobile.
The third aspect, the embodiment of the present invention are additionally provided a kind of lubrication control method, are carried based on any embodiment of the present invention
The lubricating system of confession realizes that this method includes：
Controller controls the rotating speed of the driving motor of electric oil pump, and control throttling according to the operating status of engine
The aperture of valve, to adjust the flow of the lubricating oil in the first greasing cycle circuit and the second greasing cycle circuit；
Wherein, the operating status of engine includes following at least one：Before startup, start reach the second preset rotation speed process
In, reach after the second preset rotation speed and after shutting down.
Further, when lubricating system further includes solenoid valve, the first temperature sensor, Rotating speed measring module and second temperature
When sensor, controller controls the rotating speed of the driving motor of electric oil pump, and control throttling according to the operating status of engine
The aperture of valve includes：
In the first preset time period of controller before an engine is started, controls solenoid valve and throttle valve is opened, and control
The rotational speed regulation of the driving motor of electric oil pump processed is the first preset rotation speed；
Controller during startup engine reaches the second preset rotation speed, open, according to water cooling system by control solenoid valve
The water temperature of system and the rotating speed of engine control the rotating speed of the driving motor of electric oil pump, and are controlled and saved according to the rotating speed of engine
Flow the aperture of valve；
Controller is after engine reaches the second preset rotation speed, and control solenoid valve is opened, according to the water temperature of water cooling system
With the rotating speed of engine, the rotating speed of the driving motor of electric oil pump is controlled, according to the rotating speed of the temperature of exhaust gas and engine, control
The aperture of throttle valve；
In the second preset time period of controller after engine stop, control solenoid valve is closed, and control throttle valve is opened,
And the rotating speed of the driving motor of electric oil pump is controlled according to the temperature of exhaust gas.
The technical solution of the embodiment of the present invention controls the rotating speed of the driving motor of electric oil pump by controller, to adjust the
The flow of the lubricating oil in one greasing cycle circuit and the second greasing cycle circuit controls the aperture of throttle valve by controller, with
The further flow of the lubricating oil in the second greasing cycle circuit of adjustment, to realize the stream of the lubricating oil to flowing into engine friction pair
The flow of the lubricating oil of amount and inflow booster is separately controlled, so that engine friction pair and booster obtain sufficient lubrication
Meanwhile phenomena such as avoiding booster from altering oil, oil leak.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of lubricating system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another lubricating system provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of automobile provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another automobile provided in an embodiment of the present invention；
Fig. 5 is a kind of flow chart of lubrication control method provided in an embodiment of the present invention；
Fig. 6 is the flow chart of another lubrication control method provided in an embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
The embodiment of the present invention provides a kind of lubricating system.Fig. 1 is a kind of knot of lubricating system provided in an embodiment of the present invention
Structure schematic diagram.The lubricating system includes：First greasing cycle circuit 100, the second greasing cycle circuit 200 and controller 300.
Wherein, the first greasing cycle circuit 100 includes the oil sump 110, electric oil pump 120, main oil for recycling connection successively
Multiple friction pairs 140 in road 130 and engine；Second greasing cycle circuit 200 includes the oil sump for recycling connection successively
110, electric oil pump 120, throttle valve 230 and booster 240；Controller 300 includes the first signal end S1 and second signal end S2,
First signal end S1 is electrically connected with the control terminal of electric oil pump 120, and second signal end S2 and the control terminal of throttle valve 230 are electrically connected
It connects, controller 300 is used to control the rotating speed of the driving motor of electric oil pump 120, and the aperture of control throttle valve 230, to adjust
The flow of the lubricating oil in whole first greasing cycle circuit 100 and the second greasing cycle circuit 200.
Wherein, oil sump 110 is for storing lubricating oil.Electric oil pump 120 includes driving motor and lubricating oil pump, driving motor
Lubricating oil pump is driven, so that lubricating oil circulates in the first greasing cycle circuit 100 and the second greasing cycle circuit 200.The
It is connected to by oil pipe between communication means in one greasing cycle circuit 100 and the second greasing cycle circuit 200.Controller 300
The first signal end S1 can to the control terminal of electric oil pump 120 send rotary speed instruction, to control the driving motor of electric oil pump 120
Rotating speed.The rotating speed of driving motor is bigger, the amount for the lubricating oil that electric oil pump 120 is extracted from oil sump 110 in the unit interval
Bigger, the flow and oil pressure of the first greasing cycle circuit 100 and the lubricating oil in the second greasing cycle circuit 200 are bigger.The section
The aperture of stream valve 230 can automatically adjust, and the second signal end S2 of controller 300 can send aperture to the control terminal of throttle valve 230
Instruction, to control the unlatching, closing and opening size of throttle valve 230.Under the rotating speed of identical driving motor, throttle valve 230 is opened
Degree is bigger, and the flow and oil pressure of the lubricating oil in the second greasing cycle circuit are bigger.The friction pair of engine is engine machinery
A part for structure.The friction pair of engine includes following at least one：Piston, bearing shell, valve tappet and connecting rod.By reasonable
The rotating speed for controlling the driving motor of electric oil pump 120, with the friction pair of sufficient lubrication engine (when the rotating speed of engine is higher
When, the flow for the lubricating oil of engine to rub needed for pair 140 is more than the flow of the lubricating oil needed for booster 240), pass through conjunction
The aperture of reason control throttle valve 230 prevents booster with the appropriate flow and pressure for reducing the lubricating oil for flowing into booster 240
Alter oil, oil leak.
The technical solution of the present embodiment controls the rotating speed of the driving motor of electric oil pump by controller, with the first profit of adjustment
The flow of sliding circulation loop and the lubricating oil in the second greasing cycle circuit controls the aperture of throttle valve by controller, with into one
The flow and pressure of the lubricating oil in the second greasing cycle of successive step circuit, it is separately secondary to engine friction and booster to realize
The flow control of lubricating oil avoids booster from altering while so that engine friction pair and booster obtain sufficient lubrication
Phenomena such as oil, oil leak.
Optionally, on the basis of the above embodiments, controller 300 is used for the operating status according to engine, control electricity
The rotating speed of the driving motor of dynamic oil pump 120, and the aperture of throttle valve 230 is controlled, to adjust 100 He of the first greasing cycle circuit
The flow of the lubricating oil in the second greasing cycle circuit 200.Wherein, the operating status of engine includes following at least one：Start
Before, start reach the second preset rotation speed during, reach after the second preset rotation speed and after shutting down.
The embodiment of the present invention provides another lubricating system.Fig. 2 is another lubricating system provided in an embodiment of the present invention
Structural schematic diagram.On the basis of the above embodiments, which further includes solenoid valve 150, and solenoid valve is set to electronic
Between the access that oil pump 120 is connected to main oil gallery 130；Controller 300 further includes third signal end S3, third signal end S3 and electricity
The control terminal of magnet valve 150 is electrically connected, and controller 300 is additionally operable to the on off state of control solenoid valve 150.
Wherein, the third signal end S3 of controller 300 can send switch order to the control terminal of solenoid valve 150, with control
The on off state of solenoid valve 150, and then whether the circulation in the first greasing cycle circuit of control.By the coil for controlling solenoid valve
Electric and dead electricity is obtained, the opening and closing of the valve of solenoid valve are controlled.
Optionally, on the basis of the above embodiments, controller 300 be additionally operable to before an engine is started first it is default when
Between in section, control solenoid valve 150 and throttle valve 230 opened, and the rotational speed regulation for controlling the driving motor of electric oil pump 120 is
First preset rotation speed.
Wherein, in the first preset time period before an engine is started, the rotating speed of engine is zero at this time, controls solenoid valve
150 open, control throttle valve 230 be opened into the first default aperture, and control electric oil pump 120 driving motor rotating speed by zero
It is adjusted to the first preset rotation speed, with the friction pair 140 and the progress pre-lubrication of booster 240 to engine, avoids opening in engine
After dynamic, electric oil pump 120 is just made to work, lubricating oil is pumped from oil sump 110 by the first lubrication of arrival due to electric oil pump 120 and is followed
The engine friction pair 140 of loop back path 100 and the booster 240 in the second greasing cycle circuit 200 need the regular hour (by oil
The influences such as the foundation of pressure, the length of oil pipe), therefore lubricating oil is not pumped into the first profit of arrival from oil sump 110 in electric oil pump 120
Before the friction pair 140 of the engine of sliding circulation loop 100 and the booster 240 in the second greasing cycle circuit 200, engine can be by
Lead to unlubricated friction in insufficient lubrication.
Optionally, on the basis of the above embodiments, with continued reference to Fig. 2, which further includes the first temperature sensing
Device 310 and Rotating speed measring module 320, the first temperature sensor 310 are used to detect the water temperature of the water cooling system of engine, rotating speed
Detection module 320 is used to detect the rotating speed of engine；Controller 300 is additionally operable to reach the second preset rotation speed mistake in startup engine
Cheng Zhong, control solenoid valve 150 are opened, and according to the rotating speed of the water temperature of water cooling system and engine, control the drive of electric oil pump 120
The rotating speed of dynamic motor, and according to the aperture of the rotating speed of engine control throttle valve 230.
Wherein, engine water temperature is the water temperature of the water cooling system of engine.Second preset rotation speed can be idling.Start
The water cooling system of machine distributes the partial heat that Heating Components absorb in time, ensures engine in optimum temperature shape
It works under state.The water temperature of the water cooling system for the engine that first temperature sensor 310 detects, can reflect the temperature of lubricating oil
Degree, the two are positively correlated variation.First temperature sensor can be replaced by third temperature sensor, which can
Temperature for detecting lubricating oil.Controller 300 is during starting engine and reaching the second preset rotation speed, i.e. engine speed
The second preset rotation speed is increased to by zero, control solenoid valve 150 is opened, according to the rotating speed of the water temperature of water cooling system and engine,
The rotating speed of the driving motor of electric oil pump 120 is controlled, and controls the aperture of throttle valve 230 according to the rotating speed of engine.Engine
Rotating speed it is bigger, rub the more of secondary required lubricating oil.The temperature of lubricating oil is higher, and the easier flowing of lubricating oil, machine oil (moistens
Lubricating oil) pressure is bigger, therefore even if the rotating speed of the driving motor of appropriate reduction electric oil pump, remains to meet the secondary required lubrication that rubs
The flow and oil pressure of oil.The rotating speed of the driving motor of electric oil pump 120 is bigger, and oil pressure is bigger.One timing of engine speed, with
The variation from low to high of engine water temperature needs the rotating speed for reducing the driving motor of electric oil pump 120；When engine water temperature is certain
When, with the variation from low to high of engine speed, the rotating speed for controlling the driving motor of electric oil pump 120 is needed to become from low to high
Change, ensures lubricating action.If engine speed increases, the aperture for controlling throttle valve 230 increases；If the rotating speed of engine subtracts
Small, then the aperture for controlling throttle valve 230 reduces.Reached for the second preset rotation speed stage starting engine, it can be by the fortune of engine
It (such as can be every 300 rpms of conducts, one speed stage, such as that row rotating speed, which is divided into multiple first speed stages,：Zero to 300,300
It is equal respectively as a speed stage to 600), engine water temperature, which is divided into multiple first temperature sections, (such as can be every 30 degree and make
For a temperature section, such as：Zero to 30,30 to 60 is equal respectively as a temperature section), in corresponding first speed stage and the first temperature
It spends in section, the rotating speed for controlling the driving motor of electric oil pump 120 keeps a corresponding constant rotational speed value.The operation of engine is turned
Speed is divided into multiple second speed stages, and in corresponding second speed stage, the aperture holding one of control throttle valve 230 is corresponding constant
Opening value.Engine reaches the second preset rotation speed by rapid start of zero-turn speed, and required time is shorter, therefore can reduce the first rotating speed
The section range of speeds corresponding with the second speed stage, to ensure the rotating speed of the driving motor of electric oil pump 120 and opening for throttle valve 230
The speed adjusted is spent, to reach sufficient lubrication effect, and prevents booster from altering oil, oil leak.First speed stage and second turn
The dividing mode (i.e. the corresponding range of speeds of every speed section) of fast section may be the same or different.
Optionally, on the basis of the above embodiments, with continued reference to Fig. 2, booster 240 is exhaust-driven turbo-charger exhaust-gas turbo charger, should
Lubricating system further includes second temperature sensor 330, the temperature for detecting the exhaust gas that engine is discharged into exhaust-driven turbo-charger exhaust-gas turbo charger
Degree；Controller 300 is additionally operable to after starting engine and reaching the second preset rotation speed, i.e., after start completion, into stable operation
Journey, control solenoid valve 150 are opened, and according to the rotating speed of the water temperature of water cooling system and engine, control the driving of electric oil pump 120
The rotating speed of motor, and according to the aperture of the rotating speed of the temperature of exhaust gas and engine control throttle valve 230.
Wherein, exhaust-driven turbo-charger exhaust-gas turbo charger includes turbine and air compressor.Exhaust-driven turbo-charger exhaust-gas turbo charger is arranged using engine
The exhaust gas inertia impulsive force gone out pushes the turbine of turbine, turbine to drive the impeller of coaxial air compressor, impeller force feed again
The air sent by air cleaner pipeline is allowed to the cylinder that supercharging enters engine.Into the air pressure and density of cylinder
Increase, can burn more fuel, the corresponding rotating speed for increasing fuel quantity and adjusting engine, to increase the output work of engine
Rate.The temperature of exhaust gas can reflect that the temperature of the turbine of booster, the two are positively correlated variation.The temperature of turbine is higher, needs
The flow for increasing the lubricating oil for flowing into booster, to cool down booster.If the temperature of turbine increases, throttle valve 230 is controlled
Aperture increases, to increase the flow for the lubricating oil for flowing into booster；If the temperature of turbine reduces, opening for throttle valve 230 is controlled
Degree reduces, to reduce the flow for the lubricating oil for flowing into booster.If engine speed increases, the aperture of throttle valve 230 is controlled
Increase；If the rotating speed of engine reduces, the aperture for controlling throttle valve 230 reduces.After the completion of engine start, compared to starting
Machine starts to before the second preset rotation speed, and engine speed is higher, and the rotating speed of the driving motor of electric oil pump 120 is higher, electronic
The flow for the lubricating oil that oil pump 120 is pumped is more, the lubricating oil needed for friction pair 140 for engine, by according to exhaust gas
Temperature and engine rotating speed control throttle valve 230 aperture, with adjust flow into booster 240 lubricating oil flow, keep away
Exempt from phenomena such as booster alters oil, oil leak, and prevent turbocharger bearing wear, protects booster.Reach starting engine
After second preset rotation speed, i.e., after start completion, when into stable operation stage, the running speed of engine can be divided into multiple
Engine water temperature is divided into multiple second temperature sections by three speed stages, in corresponding third speed stage and second temperature section, control
The rotating speed of the driving motor of electric oil pump 120 keeps corresponding constant rotational speed value.The running speed of engine is divided into multiple
The temperature of exhaust gas is divided into multiple third temperature sections by four speed stages, in corresponding 4th speed stage and third temperature section, control
The aperture of throttle valve 230 keeps corresponding constant degree value.Wherein, the dividing mode of third speed stage and the 4th speed stage can be with
It is identical, it can also be different.The dividing mode (i.e. each temperature section corresponding temperature range) of first temperature section and second temperature section
It may be the same or different.
Optionally, on the basis of the above embodiments, controller 300 be additionally operable to after engine stop second it is default when
Between in section, control solenoid valve 150 is closed, and control throttle valve 230 is opened, and controls electric oil pump 120 according to the temperature of exhaust gas
The rotating speed of driving motor.
Wherein, since after engine misses, exhaust-driven turbo-charger exhaust-gas turbo charger will be gradually dropped to 0 from high rotating speed, can still have at this time
Exhaust gas is trapped at turbocharger, and temperature is very high, and therefore, turbocharger still needs to lubricating oil and is lubricated to bearing, therefore
It presets and opens by the way that in the second preset time period of controller 300 after engine stop, control throttle valve 230 is opened into second
Degree, and according to the temperature of exhaust gas control electric oil pump 120 driving motor rotating speed, it is sustainable to booster be lubricated with it is cold
But, prevent temperature it is excessively high cause TC bearings to burn out, cushion rubber aging.If the temperature of exhaust gas increases, electric oil pump 120 is controlled
Driving motor rotating speed increase；If the temperature of exhaust gas reduces, the rotating speed for controlling the driving motor of electric oil pump 120 reduces.
In the second preset time period after engine stop, the temperature of exhaust gas is divided into multiple 4th temperature sections, the corresponding 4th
In temperature section, the rotating speed for controlling the driving motor of electric oil pump 120 keeps corresponding constant rotational speed value.Wherein, third temperature section
It may be the same or different with the dividing mode of the 4th temperature section (i.e. each temperature section corresponding temperature range).Controller
300 be additionally operable to after engine stop more than the second preset time period after, control solenoid valve 150 and throttle valve 230 and be turned off, control
The driving motor of electric oil pump 120 processed stops operating.
Optionally, on the basis of the above embodiments, with continued reference to Fig. 2, which further includes oil filter
210, oil filter 210 is set between the access that oil sump 110 is connected to electric oil pump 120, and oil filter 210 is used for
Impurity in filtering lubricant oil extends its service life to protect the cleaning of oil to be lubricated.
Original machine machinery lubricating oil pump is directly changed to electric oil pump by the embodiment of the present invention, on the one hand can save oil consumption, separately
On the one hand rotating speed is flexibly controlled to complete the lubrication of system by a lubricating oil pump.
The embodiment of the present invention provides a kind of automobile.Fig. 3 is a kind of structural schematic diagram of automobile provided in an embodiment of the present invention.
The automobile 400 includes engine 410 and the lubricating system 420 that any embodiment of the present invention provides.
Automobile provided in an embodiment of the present invention includes the lubricating system in above-described embodiment, therefore the embodiment of the present invention provides
Automobile also have the advantageous effect described in above-described embodiment, details are not described herein again.
Optionally, on the basis of the above embodiments, which further includes low pressure energy-storage module, the feeder ear with controller
Electrical connection, for providing supply voltage to controller.The low pressure energy-storage module can be A-battery.
The embodiment of the present invention provides another automobile.Fig. 4 is that the structure of another automobile provided in an embodiment of the present invention is shown
It is intended to.On the basis of the above embodiments, which further includes motor 430, and engine 410 and motor 430 are that the automobile 400 carries
For hybrid power.
Wherein, which can be hybrid-power bus, can be with by using the lubricating system that above-described embodiment provides
During solving engine frequent start-stop, engine lubrication system is unable to sufficient lubrication, and (traditional engine lubrication mode is song
Shaft gear drives oil pump gear to realize lubrication, only in the case of engine start, could realize the lubrication of complete machine, once hair
Motivation is shut down, then is stopped to the lubrication of engine, and before engine start, in start-up course and after shutting down, there are insufficient lubrications
Problem, or even friction pair and booster can not be lubricated；In addition, hybrid-power bus there are torque demands excessively high, vehicle
When the demands such as fast demand is excessive, motor quickly drags engine start, in order to achieve the purpose that crash change of speed, motor drag start
Machine reaches the time of shifting points rotating speed, is established to the pressure for playing lubricating action to each friction pair compared to engine oil pressure
The time that power needs wants short more, therefore compared to the promotion of the rotating speed of engine, lubrication, which has, centainly to be postponed), and then can cause to increase
Depressor alters oil, oil leak, and the more serious TC bearings that can occur are burnt out, until the danger of damage booster.
Optionally, on the basis of the above embodiments, which further includes that high-voltage energy storage module and step-down type dc turn straight
Current converter, high-voltage energy storage module turn DC converter through step-down type dc and are electrically connected with low pressure energy-storage module, step-down type dc
Turn DC converter for the high pressure of high-voltage energy storage module to be converted into low pressure, charges to low pressure energy-storage module.The high-voltage energy storage
Module is electrically connected with the motor of hybrid vehicle, for providing electric power to the motor of hybrid vehicle.The high-voltage energy storage mould
Block can be high-tension battery.High-voltage energy storage module is larger relative to the electricity of low pressure energy-storage module, can continue to controller and
Electric oil pump is powered.
The embodiment of the present invention provides a kind of lubrication control method.Fig. 5 is a kind of lubrication control provided in an embodiment of the present invention
The flow chart of method.The lubricating system that the lubrication control method can be provided based on any embodiment of the present invention is realized.This method packet
It includes：
Step 510, controller control the rotating speed of the driving motor of electric oil pump according to the operating status of engine, and
The aperture for controlling throttle valve, to adjust the flow of the lubricating oil in the first greasing cycle circuit and the second greasing cycle circuit.
Wherein, the operating status of engine includes following at least one：Before startup, start reach the second preset rotation speed process
In, reach after the second preset rotation speed and after shutting down.Controller can judge whether to need to start engine according to speed and throttle.
If the speed of automobile reaches the first preset vehicle speed, and throttle is larger (demand for having acceleration), it is determined that has and starts engine
It needs.For controller when monitoring that high-tension battery electricity is less than default electricity, determining has startup engine needs.Controller may be used also
According to the conditions such as whether gear, engine water temperature, speed, motor normal, judge whether to need to start engine.
The lubricating system that lubrication control method provided in an embodiment of the present invention can be provided based on any embodiment of the present invention is real
It is existing, therefore lubrication control method provided in an embodiment of the present invention also has the advantageous effect described in above-described embodiment, herein
It repeats no more.
The embodiment of the present invention provides another lubrication control method.Fig. 6 is another lubrication provided in an embodiment of the present invention
The flow chart of control method.On the basis of the above embodiments, when lubricating system further include solenoid valve, the first temperature sensor,
When Rotating speed measring module and second temperature sensor, this method includes：
In the first preset time period of step 610, controller before an engine is started, controls solenoid valve and throttle valve is opened
The rotational speed regulation for opening, and controlling the driving motor of electric oil pump is the first preset rotation speed.
During startup engine reaches the second preset rotation speed, control solenoid valve is opened for step 620, controller, according to
The water temperature of water cooling system and the rotating speed of engine control the rotating speed of the driving motor of electric oil pump, and are turned according to engine
Speed controls the aperture of throttle valve.
Wherein, it can pre-establish by analyzing test data, before step 620 and reach second in advance at startup engine
If in Rotation Process, pair of the rotating speed of the driving motor of electric oil pump 120 and the rotating speed of the water temperature of water cooling system and engine
It should be related to and the correspondence of the rotating speed of the aperture of throttle valve 230 and engine, be used in step 620 with facilitating.
Step 630, controller are after engine reaches the second preset rotation speed, and control solenoid valve is opened, according to water cooling system
The water temperature of system and the rotating speed of engine control the rotating speed of the driving motor of electric oil pump, and according to the temperature and engine of exhaust gas
Rotating speed, control the aperture of throttle valve.
Wherein, it can pre-establish by analyzing test data, before step 630 and reach second default turn at engine
After speed, the correspondence of the rotating speed of the driving motor of electric oil pump 120 and the rotating speed of the water temperature of water cooling system and engine, with
And the correspondence of the rotating speed of the temperature and engine of the aperture and exhaust gas of throttle valve 230, it is used in step 630 with facilitating.
In the second preset time period of step 640, controller after engine stop, control solenoid valve is closed, control section
It flows valve to open, and the rotating speed of the driving motor according to the temperature of exhaust gas control electric oil pump.
Wherein, after engine stop second pre- can be pre-established by analyzing test data, before step 640
If in the period, the correspondence of the rotating speed of the driving motor of electric oil pump 120 and the temperature of exhaust gas, to facilitate in step 640
It uses.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above example to this
Invention is described in further detail, but the present invention is not limited only to above example, is not departing from present inventive concept
In the case of, can also include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (11)
1. a kind of lubricating system, which is characterized in that including：
First greasing cycle circuit, including the multiple of the oil sump of connection, electric oil pump, main oil gallery and engine are recycled successively
Friction is secondary；
Second greasing cycle circuit, including the oil sump, the electric oil pump, throttle valve and the supercharging of connection are recycled successively
Device；
Controller, including the first signal end and second signal end, the control terminal electricity of first signal end and the electric oil pump
Connection, the second signal end are electrically connected with the control terminal of the throttle valve, and the controller is for controlling the electric oil pump
Driving motor rotating speed, and the control throttle valve aperture, to adjust first greasing cycle circuit and described the
The flow of the lubricating oil in two greasing cycle circuits.
2. lubricating system according to claim 1, which is characterized in that further include solenoid valve, the solenoid valve is set to institute
It states between the access that electric oil pump is connected to the main oil gallery；
The controller further includes third signal end, and the third signal end is electrically connected with the control terminal of the solenoid valve, described
Controller is additionally operable to control the on off state of the solenoid valve.
3. lubricating system according to claim 2, which is characterized in that the controller is additionally operable to before an engine is started
It in first preset time period, controls the solenoid valve and the throttle valve is opened, and control the driving electricity of the electric oil pump
The rotational speed regulation of machine is the first preset rotation speed.
4. lubricating system according to claim 2, which is characterized in that further include the first temperature sensor and Rotating speed measring mould
Block, first temperature sensor are used to detect the water temperature of the water cooling system of the engine, and the Rotating speed measring module is used
In the rotating speed for detecting the engine；
The controller is additionally operable to during the startup engine reaches the second preset rotation speed, control the solenoid valve and open
It opens, turning for the driving motor of the electric oil pump is controlled according to the rotating speed of the water temperature of the water cooling system and the engine
Speed, and control according to the rotating speed of the engine aperture of the throttle valve.
5. lubricating system according to claim 4, which is characterized in that the booster is exhaust-driven turbo-charger exhaust-gas turbo charger, the profit
Sliding system further includes second temperature sensor, for detecting exhaust gas that the engine is discharged into the exhaust-driven turbo-charger exhaust-gas turbo charger
Temperature；
The controller is additionally operable to after the engine reaches second preset rotation speed, is controlled the solenoid valve and is opened, root
According to the rotating speed of the water temperature and the engine of the water cooling system, the rotating speed of the driving motor of the electric oil pump is controlled, and
The aperture of the throttle valve is controlled according to the rotating speed of the temperature of the exhaust gas and the engine.
6. lubricating system according to claim 5, which is characterized in that the controller is additionally operable to shut down in the engine
It in the second preset time period afterwards, controls the solenoid valve and closes, control the throttle valve and open, and according to the temperature of the exhaust gas
Degree controls the rotating speed of the driving motor of the electric oil pump.
7. lubricating system according to claim 1, which is characterized in that further include oil filter, the oil filter
It is set between the access that the oil sump is connected to the electric oil pump, the oil filter is used in filtering lubricant oil
Impurity.
8. a kind of automobile, which is characterized in that including any lubricating system of engine and claim 1-7.
9. automobile according to claim 8, which is characterized in that further include motor, the engine and the motor are to be somebody's turn to do
Automobile provides hybrid power.
10. a kind of lubrication control method, which is characterized in that realized based on any lubricating systems of claim 1-7, the party
Method includes：
Controller controls the rotating speed of the driving motor of electric oil pump, and control throttle valve according to the operating status of engine
Aperture, to adjust the flow of the lubricating oil in the first greasing cycle circuit and the second greasing cycle circuit；
Wherein, the operating status of the engine includes following at least one：Before startup, start reach the second preset rotation speed process
In, reach after second preset rotation speed and after shutting down.
11. lubrication control method according to claim 10, which is characterized in that when the lubricating system further includes electromagnetism
When valve, the first temperature sensor, Rotating speed measring module and second temperature sensor, controller according to the operating status of engine,
The rotating speed of the driving motor of electric oil pump is controlled, and the aperture of control throttle valve includes：
In the first preset time period of the controller before an engine is started, controls the solenoid valve and the throttle valve is opened
The rotational speed regulation for opening, and controlling the driving motor of the electric oil pump is the first preset rotation speed；
The controller controls the solenoid valve and opens during the startup engine reaches the second preset rotation speed, according to
The rotating speed of the water temperature of the water cooling system and the engine controls the rotating speed of the driving motor of the electric oil pump, and root
The aperture of the throttle valve is controlled according to the rotating speed of the engine；
The controller controls the solenoid valve and opens, according to described after the engine reaches second preset rotation speed
The rotating speed of the water temperature of water cooling system and the engine controls the rotating speed of the driving motor of the electric oil pump, according to described
The rotating speed of the temperature of exhaust gas and the engine controls the aperture of the throttle valve；
The controller controls the solenoid valve and closes, control institute in the second preset time period after engine shutdown
Throttle valve unlatching is stated, and controls according to the temperature of the exhaust gas rotating speed of the driving motor of the electric oil pump.
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| CN201810278551.2A CN108547678A (en) | 2018-03-30 | 2018-03-30 | A kind of lubricating system, lubrication control method and automobile |
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| CN201810278551.2A CN108547678A (en) | 2018-03-30 | 2018-03-30 | A kind of lubricating system, lubrication control method and automobile |
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| CN110056462A (en) * | 2019-06-24 | 2019-07-26 | 潍柴动力股份有限公司 | A kind of hybrid power engine starting method and device |
| CN111691946A (en) * | 2020-06-29 | 2020-09-22 | 潍柴动力股份有限公司 | Lubricating system, oil pump control method, controller and vehicle |
| CN111734525A (en) * | 2020-04-14 | 2020-10-02 | 广西玉柴机器股份有限公司 | Normally open type cooling and lubricating system of supercharger |
| CN112664584A (en) * | 2019-10-16 | 2021-04-16 | 上海汽车集团股份有限公司 | Lubrication control method and device of wet clutch and vehicle |
| CN113847140A (en) * | 2021-09-08 | 2021-12-28 | 东风汽车集团股份有限公司 | Range extender lubricating and cooling system, hybrid electric vehicle and control method |
| CN116538291A (en) * | 2023-05-08 | 2023-08-04 | 蜂巢传动科技邳州有限公司 | Control method of gearbox electrohydraulic control system |
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