CN105986917A - Control method and device for oil injection amount of engine - Google Patents
Control method and device for oil injection amount of engine Download PDFInfo
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- CN105986917A CN105986917A CN201610513986.1A CN201610513986A CN105986917A CN 105986917 A CN105986917 A CN 105986917A CN 201610513986 A CN201610513986 A CN 201610513986A CN 105986917 A CN105986917 A CN 105986917A
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- distributive value
- electromotor
- upper limit
- theoretical
- engine
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- 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
- F02D41/30—Controlling fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses a control method for an oil injection amount of an engine. The method comprises the following process steps of acquiring the theoretical oil injection amount of the engine of a vehicle based on the gas inlet amount detected by a gas inlet sensor; acquiring the actual gas inlet amount of the engine according to the work condition information of the engine, and acquiring the upper limit oil injection amount of the engine according to the actual gas inlet amount; controlling oil injection of the engine according to the upper limit oil injection amount if the theoretical oil injection amount is larger than or equal to the upper limit oil injection amount; and revising the theoretical oil injection amount according to the pressure of an intake manifold of the vehicle and the pressure of fuel if the theoretical oil injection amount is smaller than the upper limit oil injection amount, and controlling oil injection of the engine according to the revised theoretical oil injection amount. The invention also provides a control device for the oil injection amount of the engine. The control method and device solve the technical problem of unreasonable control in the oil injection amount of the engine.
Description
Technical field
The present invention relates to technical field of engines, particularly relate to a kind of Engine Injection Mass control method and
Device.
Background technology
Existing electromotor, is typically all by arranging inlet sensor module measurement air inlet amount, then root
According to the air inflow recorded, the distributive value of electromotor is controlled, but, for some electromotors,
Particularly Diesel engine, in order to ensure the sensitivity of inlet sensor module, its inlet sensor module is arranged at
Between air filter and supercharger, if the component malfunction such as plenum pipeline or supercharger,
Actual air inflow can be caused to reduce, and so, the air inflow that inlet sensor module records is more than actual air inflow,
But, the distributive value of electromotor is controlled by the air inflow now recorded still according to sensor, can make
Become distributive value excessive, cause the distributive value of electromotor to control unreasonable.
Summary of the invention
The present invention provides control method and the device of a kind of Engine Injection Mass, and its main purpose is to solve
The distributive value of electromotor controls irrational technical problem.
For achieving the above object, the present invention provides the control method of a kind of Engine Injection Mass, this electromotor
The control method of distributive value includes:
Air inflow based on inlet sensor module detection obtains the theoretical distributive value of the electromotor of vehicle；
Work information according to described electromotor obtains the actual air inflow of described electromotor, and according to described
Actual air inflow obtains the upper limit distributive value of described electromotor；
If described theoretical distributive value is more than or equal to described upper limit distributive value, then according to described upper limit distributive value
Described electromotor is carried out Injection Control；
If described theoretical distributive value is less than described upper limit distributive value, then according to the inlet manifold pressure of described vehicle
Described theoretical distributive value is modified by power and fuel pressure, and according to revised described theoretical distributive value
Described electromotor is carried out Injection Control.
Alternatively, the step of the described upper limit distributive value obtaining described electromotor according to described actual air inflow
Including:
Obtain gear information and the rotary speed information of described electromotor；
Determine electromotor under described gear information and described rotary speed information, described actual air inflow is corresponding
Distributive value, and using the described distributive value that gets as described upper limit distributive value.
Alternatively, the described air-distributor pressure according to described vehicle and fuel pressure are to described theoretical oil spout
Amount is modified, and according to revised described theoretical distributive value, described electromotor is carried out Injection Control
Step includes:
Obtain air-distributor pressure and the fuel pressure of vehicle, determine described air-distributor pressure and described combustion
The correction factor that the difference of oil pressure is corresponding；
Revised distributive value is obtained according to described theoretical distributive value and described correction factor, and according to described
Revised distributive value carries out Injection Control to described electromotor.
Alternatively, the described work information according to described electromotor obtains the actual air inflow of described electromotor
Step include:
Institute is obtained according to engine displacement, engine cylinder number, electromotor charging efficiency and engine speed
State the actual air inflow of electromotor.
Alternatively, if described theoretical distributive value is more than or equal to described upper limit distributive value, then according to institute
After stating the step that upper limit distributive value carries out Injection Control to described electromotor, described Engine Injection Mass
Control method further comprises the steps of:
Output information, has reached upper limit distributive value with the distributive value pointing out electromotor described in user current.
Additionally, for achieving the above object, the present invention also provides for the control device of a kind of Engine Injection Mass,
The control device of this Engine Injection Mass includes:
Acquisition module, obtains the theory of the electromotor of vehicle for air inflow based on inlet sensor module detection
Distributive value；
And, according to the actual air inflow of the work information described electromotor of acquisition of described electromotor, and according to
Described actual air inflow obtains the upper limit distributive value of described electromotor；
Control module, if for described theoretical distributive value more than or equal to described upper limit distributive value, then according to
Described upper limit distributive value carries out Injection Control to described electromotor；
Correcting module, if for described theoretical distributive value less than described upper limit distributive value, then according to described car
Air-distributor pressure and fuel pressure described theoretical distributive value is modified；
Described control module, is additionally operable to carry out described electromotor according to revised described theoretical distributive value
Injection Control.
Alternatively, described acquisition module, it is additionally operable to obtain gear information and the rotary speed information of described electromotor；
And, determine electromotor under described gear information and described rotary speed information, described actual air inflow
Corresponding distributive value, and using the described distributive value that gets as described upper limit distributive value.
Alternatively, described acquisition module, it is additionally operable to obtain air-distributor pressure and the fuel pressure of vehicle,
Determine the correction factor that described air-distributor pressure is corresponding with the difference of described fuel pressure；
Described correcting module, after being additionally operable to obtain correction according to described theoretical distributive value and described correction factor
Distributive value；
Described control module, is additionally operable to, according to described revised distributive value, described electromotor is carried out oil spout
Control.
Alternatively, described acquisition module, it is additionally operable to according to engine displacement, engine cylinder number, electromotor
Charging efficiency and engine speed obtain the actual air inflow of described electromotor.
Alternatively, the control device of described Engine Injection Mass also includes output module, is used for exporting prompting
Information, has reached upper limit distributive value with the distributive value pointing out electromotor described in user current.
The control method of the Engine Injection Mass that the present invention proposes and device, carrying out oil spout control to electromotor
Time processed, the air inflow measured according to inlet sensor module obtains the theoretical distributive value of vehicle motor, root simultaneously
Transmitter actual air inflow now is obtained, according to the actual air inlet of electromotor according to the work information of electromotor
Amount obtains the upper limit distributive value of electromotor, is contrasted with the distributive value upper limit by theory distributive value, if theoretical
Distributive value is more than upper limit distributive value, in order to avoid distributive value is excessive, now sends out according to upper limit distributive value Confucius
Motivation carries out oil spout, if theoretical distributive value is less than upper limit distributive value, then obtains the air-distributor pressure of vehicle,
Theoretical distributive value is modified, and according to revised theoretical distributive value, electromotor is carried out Injection Control,
The fuel injection control method of the present invention, on the basis of obtaining theoretical distributive value according to inlet sensor module, it is considered to
The operating mode of electromotor is for the impact of actual air inflow, and the force value of inlet manifold is sprayed for reality
The impact of oil mass, carries out Injection Control to electromotor, it is to avoid the situation that distributive value is excessive occur, it is achieved send out
The conservative control of motivation distributive value.
Accompanying drawing explanation
Fig. 1 is the flow chart of the control method first embodiment of inventive engine distributive value；
Fig. 2 is the flow chart of control method second embodiment of inventive engine distributive value；
Fig. 3 is the high-level schematic functional block diagram controlling device first embodiment of inventive engine distributive value.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
Determine the present invention.
The present invention provides the control method of a kind of Engine Injection Mass.With reference to shown in Fig. 1, send out for the present invention
The flow chart of the control method first embodiment of motivation distributive value.
In the present embodiment, the control method of this Engine Injection Mass includes:
Step S10, air inflow based on inlet sensor module detection obtains the theoretical oil spout of the electromotor of vehicle
Amount；
ECU (Electronic Control Unit, electronic control unit) it is typically provided with on vehicle, or
Vehicle dedicated microcomputer controller etc., its have computing and control function, operationally, ECU adopts electromotor
Collect the signal of each sensor, carry out computing, and the result of computing is changed into control signal, control controlled
The work of object, such as, controls the igniting of electromotor, distributive value control, air-fuel ratio, waste gas recirculation
Deng the control of multiple parameters, the method that the present embodiment proposes is mainly used for the control to Engine Injection Mass.
The admission line of the electromotor of vehicle is provided with inlet sensor module, for detecting the sky sucking air inlet pipe
Throughput, is adjusted controlling to the distributive value of electromotor according to the air inflow that inlet sensor module detects,
When air inflow is the highest, its distributive value needs to raise, and therefore, for same electromotor, is starting
Machine is under desired operation, keeps certain linear relationship between general distributive value and air inflow,
When getting the air inflow that sensor detects, it is possible to according to the acquisition vehicle theory oil spout that air inflow is corresponding
Amount, the fuel oil quality needing injection in theory that according to described theoretical distributive value, described linear relationship determines.
Step S20, obtains the actual air inflow of described electromotor according to the work information of described electromotor, and
The upper limit distributive value of described electromotor is obtained according to described actual air inflow；
Owing to the actual operating state of electromotor is relative to desired operation, its operating mode also differs, very
To owing to using the factor such as environment or component failure to cause the actual air inflow of electromotor relative to sensing
The air inflow difference that device detects is relatively big, such as, owing to the parts such as plenum pipeline or supercharger are sent out
Raw fault, the air inflow that actual air inflow detects much smaller than inlet sensor module, therefore the oil spout being actually needed
Amount also can be smaller；Or owing under inlet sensor module sensitivity, degradation reason causes detecting the air inlet obtained
Amount is less than actual air inflow, and then causes the distributive value being actually needed can be bigger.
Wherein, in one embodiment, described work information at least includes following information, engine displacement,
Engine cylinder number, electromotor charging efficiency, engine speed information, intake air temperature information and pressure charging system
In the actual admission pressure etc. measured by boost-pressure sensor, in other embodiments, it is also possible to enter
Other operational factors including electromotor of one step.Step S20 includes: according to engine displacement, start
Machine cylinder number, electromotor charging efficiency and engine speed obtain the actual air inflow of described electromotor.
Specifically, when calculating actual air inflow according to each work information above-mentioned, electromotor can be arranged
Amount, engine cylinder number, electromotor charging efficiency, engine speed are multiplied, and are calculated actual air inflow.
About the mode of the upper limit distributive value obtaining electromotor according to actual air inflow, in one embodiment,
Can include following refinement step:
Obtain gear information and the rotary speed information of described electromotor；
Determine electromotor under described gear information and described rotary speed information, described actual air inflow is corresponding
Distributive value, and using the described distributive value that gets as described upper limit distributive value.
For electromotor, when electromotor dispatches from the factory, the electromotor that can be drawn by pre-trial is spy
Determine to send under gear and speed conditions peak torque and tail gas up to standard time the ratio of air inflow and distributive value,
According to this ratio, under specific gear information and described rotary speed information, actual air inflow all has correspondence
Distributive value, the distributive value of this correspondence is the upper limit distributive value of electromotor, the maximum that i.e. distributive value can reach
Value, electromotor is in running, and the value of distributive value not can exceed that this upper limit distributive value.Therefore, one
In embodiment, can prestore under gear information, rotary speed information, each air inflow arranges correspondence
Distributive value, or, by air inflow demarcation interval, each interval air inflow interval arranges the upper limit spray of correspondence
Oil mass, wherein, air inflow and distributive value all can be with round numbers, after getting actual air inflow, can
With the data of inquiry storage, obtain the upper limit distributive value that this actual air inflow is corresponding.Or the reality at other
Execute in mode, actual air inflow under specific gear information, rotary speed information can be prestored and spray with the upper limit
Proportionate relationship between oil mass, after getting actual air inflow, according to actual air inflow and storage
Described proportionate relationship calculating upper limit distributive value.
Step S30, if described theoretical distributive value is more than or equal to described upper limit distributive value, then according on described
Limit distributive value carries out Injection Control to described electromotor；
Compare after obtaining theoretical amount of fuel and upper limit distributive value, if theoretical distributive value more than or
Person is equal to upper limit distributive value, owing to upper limit distributive value has been the maximum spout oil mass that this electromotor is allowed,
At this point it is possible to electromotor is carried out Injection Control according to upper limit distributive value.
Specifically, about the Injection Control of electromotor, after determining distributive value, owing to electromotor sprays
The size in hole is changeless, can be by making distributive value reach the upper limit oil spout control of injection time
Amount.
Step S40, if described theoretical distributive value is less than described upper limit distributive value, then entering according to described vehicle
Described theoretical distributive value is modified by gas manifold pressure and fuel pressure, and according to revised described reason
Opinion distributive value carries out Injection Control to described electromotor.
If theoretical distributive value is less than upper limit distributive value, then the theoretical distributive value obtained is modified, by
Pressure differential between air-distributor pressure and fuel pressure is relatively big on the impact of distributive value, therefore, according to
Theoretical distributive value is corrected, such as, according to air-distributor pressure by air-distributor pressure and fuel pressure
With fuel pressure value, increase or reduce theoretical distributive value.
Further, in other embodiments, step S40 includes:
If described theoretical distributive value is less than described upper limit distributive value, then according to the inlet manifold pressure of described vehicle
Described theoretical distributive value is modified by power and fuel pressure and current intake air temperature, and according to repairing
Described theoretical distributive value after just carries out distributive value control to electromotor.
When ambient temperature difference, intake air temperature also can be different, and then distributive value also can produce shadow
Ring, therefore, when theoretical distributive value is modified, in the air-distributor pressure according to vehicle and combustion
On the basis of oil pressure revised theory distributive value, according to intake air temperature, theoretical distributive value is modified, with
Further enhance the precision of Injection Control.
The control method of the Engine Injection Mass that the present embodiment proposes, when electromotor is carried out Injection Control,
The air inflow measured according to inlet sensor module obtains the theoretical distributive value of vehicle motor, simultaneously according to starting
The work information of machine obtains transmitter actual air inflow now, obtains according to the actual air inflow of electromotor
The upper limit distributive value of electromotor, contrasts theory distributive value with the distributive value upper limit, if theoretical distributive value
More than upper limit distributive value, in order to avoid distributive value is excessive, now enter according to upper limit distributive value Confucius's electromotor
Row oil spout, if theoretical distributive value is less than upper limit distributive value, then obtains the air-distributor pressure of vehicle, to reason
Opinion distributive value is modified, and according to revised theoretical distributive value, electromotor is carried out Injection Control, this
The fuel injection control method of invention, on the basis of obtaining theoretical distributive value according to inlet sensor module, it is contemplated that
The operating mode of electromotor is for the impact of actual air inflow, and the force value of inlet manifold is for actual fuel injection
The impact of amount, carries out Injection Control to electromotor, it is to avoid the situation that distributive value is excessive occur, it is achieved start
The conservative control of machine distributive value.
Further, the first embodiment of control method based on inventive engine distributive value proposes this
Second embodiment of the control method of bright Engine Injection Mass.Shown in reference Fig. 2, in the present embodiment,
Step S40 can include following refinement step:
Step S41, obtains air-distributor pressure and the fuel pressure of vehicle, determines described air-distributor pressure
The correction factor corresponding with the difference of described fuel pressure；
Step S42, obtains revised distributive value according to described theoretical distributive value and described correction factor, and
According to described revised distributive value, described electromotor is carried out Injection Control.
When air-distributor pressure keeps balance with fuel pressure, i.e. air-distributor pressure and fuel pressure
When difference is zero, it is not necessary to theoretical distributive value is modified；If difference is not zero, need to revise.In advance
First pass through experiment and obtain the correction factor of air-distributor pressure and the difference of fuel pressure, when inlet manifold pressure
When power is more than fuel pressure, needing to increase distributive value, correction factor is less than 1, when air-distributor pressure is less than
During fuel pressure, needing to reduce distributive value, correction factor is more than 1.At the air-distributor pressure obtaining vehicle
After fuel pressure, according to the data of storage, determine that air-distributor pressure is corresponding with the difference of fuel pressure
Correction factor, and calculate revised distributive value, according to revised distributive value, electromotor sprayed
Oil controls.
Further, after step S30, the control method of this Engine Injection Mass also includes:
Output information, has reached upper limit distributive value with the distributive value pointing out electromotor described in user current.
User is reminded to check electromotor, to get rid of engine failure as early as possible.
The present invention also proposes the control device of a kind of Engine Injection Mass.
With reference to shown in Fig. 3, for the function mould controlling device first embodiment of inventive engine distributive value
Block schematic diagram.
In this embodiment, the control device of this Engine Injection Mass includes:
Acquisition module 10, obtains the reason of the electromotor of vehicle for air inflow based on inlet sensor module detection
Opinion distributive value；
ECU (Electronic Control Unit, electronic control unit) it is typically provided with on vehicle, or
Vehicle dedicated microcomputer controller etc., its have computing and control function, operationally, ECU adopts electromotor
Collect the signal of each sensor, carry out computing, and the result of computing is changed into control signal, control controlled
The work of object, such as, controls the igniting of electromotor, distributive value control, air-fuel ratio, waste gas recirculation
Deng the control of multiple parameters, the device that the present embodiment proposes may be used for the control to Engine Injection Mass.
The admission line of the electromotor of vehicle is provided with inlet sensor module, for detecting the sky sucking air inlet pipe
Throughput, is adjusted controlling to the distributive value of electromotor according to the air inflow that inlet sensor module detects,
When air inflow is the highest, its distributive value needs to raise, and therefore, for same electromotor, is starting
Machine is under desired operation, keeps certain linear relationship between general distributive value and air inflow,
When getting the air inflow that sensor detects, acquisition module 10 can be according to acquisition car corresponding to air inflow
Theoretical distributive value, what according to described theoretical distributive value, described linear relationship determined needs injection in theory
Fuel oil quality.
Acquisition module 10, is additionally operable to the work information according to described electromotor and obtains the reality of described electromotor
Air inflow, and the upper limit distributive value of described electromotor is obtained according to described actual air inflow；
Owing to the actual operating state of electromotor is relative to desired operation, its operating mode also differs, very
To owing to using the factor such as environment or component failure to cause the actual air inflow of electromotor relative to sensing
The air inflow difference that device detects is relatively big, such as, owing to the parts such as plenum pipeline or supercharger are sent out
Raw fault, the air inflow that actual air inflow detects much smaller than inlet sensor module, therefore the oil spout being actually needed
Amount also can be smaller；Or owing under inlet sensor module sensitivity, degradation reason causes detecting the air inlet obtained
Amount is less than actual air inflow, and then causes the distributive value being actually needed can be bigger.
Wherein, in one embodiment, described work information at least includes following information, engine displacement,
Engine cylinder number, electromotor charging efficiency, engine speed information, intake air temperature information and pressure charging system
In the actual admission pressure etc. measured by boost-pressure sensor, in other embodiments, it is also possible to enter
Other operational factors including electromotor of one step.Acquisition module 10 is additionally operable to according to engine displacement, sends out
Engine cylinder number, electromotor charging efficiency and engine speed obtain the actual air inflow of described electromotor.
Specifically, when calculating actual air inflow according to each work information above-mentioned, electromotor can be arranged
Amount, engine cylinder number, electromotor charging efficiency, engine speed are multiplied, and are calculated actual air inflow.
About the mode of the upper limit distributive value obtaining electromotor according to actual air inflow, in one embodiment,
Acquisition module 10 is additionally operable to obtain gear information and the rotary speed information of described electromotor；And, determine and start
Machine under described gear information and described rotary speed information, the distributive value that described actual air inflow is corresponding, and will
The described distributive value got is as described upper limit distributive value.
For electromotor, when electromotor dispatches from the factory, the electromotor that can be drawn by pre-trial is spy
Determine to send under gear and speed conditions peak torque and tail gas up to standard time the ratio of air inflow and distributive value,
According to this ratio, under specific gear information and described rotary speed information, actual air inflow all has correspondence
Distributive value, the distributive value of this correspondence is the upper limit distributive value of electromotor, the maximum that i.e. distributive value can reach
Value, electromotor is in running, and the value of distributive value not can exceed that this upper limit distributive value.Therefore, one
In embodiment, can prestore under gear information, rotary speed information, each air inflow arranges correspondence
Distributive value, or, by air inflow demarcation interval, each interval air inflow interval arranges the upper limit spray of correspondence
Oil mass, wherein, air inflow and distributive value all can be with round numbers, after getting actual air inflow, can
With the data of inquiry storage, obtain the upper limit distributive value that this actual air inflow is corresponding；Or, other
In embodiment, actual air inflow and the upper limit under specific gear information, rotary speed information can be prestored
Proportionate relationship between distributive value, acquisition module 10 after getting actual air inflow, according to actual enter
Tolerance and the described proportionate relationship calculating upper limit distributive value of storage.
Control module 20, if for described theoretical distributive value more than or equal to described upper limit distributive value, then pressing
According to described upper limit distributive value, described electromotor is carried out Injection Control；
Compare after obtaining theoretical amount of fuel and upper limit distributive value, if theoretical distributive value more than or
Person is equal to upper limit distributive value, owing to upper limit distributive value has been the maximum spout oil mass that this electromotor is allowed,
Now, control module 20 can carry out Injection Control according to upper limit distributive value to electromotor.
Specifically, about the Injection Control of electromotor, after determining distributive value, owing to electromotor sprays
The size in hole is changeless, can be by making distributive value reach the upper limit oil spout control of injection time
Amount.
Correcting module 30, if for described theoretical distributive value less than described upper limit distributive value, then according to described
Described theoretical distributive value is modified by air-distributor pressure and the fuel pressure of vehicle；
Control module 20, is additionally operable to spray described electromotor according to revised described theoretical distributive value
Oil controls.
If theoretical distributive value is less than upper limit distributive value, then the theoretical distributive value obtained is modified, by
Pressure differential between air-distributor pressure and fuel pressure is relatively big on the impact of distributive value, therefore, according to
Theoretical distributive value is corrected, such as, according to air-distributor pressure by air-distributor pressure and fuel pressure
With fuel pressure value, increase or reduce theoretical distributive value.
Further, in other embodiments, correcting module 30, if it is little to be additionally operable to described theoretical distributive value
In described upper limit distributive value, then according to the air-distributor pressure of described vehicle and fuel pressure and current
Intake air temperature described theoretical distributive value is modified；
Control module 20, is additionally operable to, according to revised described theoretical distributive value, electromotor is carried out distributive value
Control.
When ambient temperature difference, intake air temperature also can be different, and then distributive value also can produce shadow
Ring, therefore, when theoretical distributive value is modified, in the air-distributor pressure according to vehicle and combustion
On the basis of oil pressure revised theory distributive value, theoretical distributive value is entered by correcting module 30 according to intake air temperature
Row is revised, to further enhance the precision of Injection Control.
The control device of the Engine Injection Mass that the present embodiment proposes, when electromotor is carried out Injection Control,
The air inflow measured according to inlet sensor module obtains the theoretical distributive value of vehicle motor, simultaneously according to starting
The work information of machine obtains transmitter actual air inflow now, obtains according to the actual air inflow of electromotor
The upper limit distributive value of electromotor, contrasts theory distributive value with the distributive value upper limit, if theoretical distributive value
More than upper limit distributive value, in order to avoid distributive value is excessive, now enter according to upper limit distributive value Confucius's electromotor
Row oil spout, if theoretical distributive value is less than upper limit distributive value, then obtains the air-distributor pressure of vehicle, to reason
Opinion distributive value is modified, and according to revised theoretical distributive value, electromotor is carried out Injection Control, this
The Injection Control device of invention, on the basis of obtaining theoretical distributive value according to inlet sensor module, it is contemplated that
The operating mode of electromotor is for the impact of actual air inflow, and the force value of inlet manifold is for actual fuel injection
The impact of amount, carries out Injection Control to electromotor, it is to avoid the situation that distributive value is excessive occur, it is achieved start
The conservative control of machine distributive value.
Further, the first embodiment controlling device based on inventive engine distributive value proposes this
Second embodiment controlling device of bright Engine Injection Mass.In the present embodiment, acquisition module 10, also
For obtaining air-distributor pressure and the fuel pressure of vehicle, determine described air-distributor pressure and described combustion
The correction factor that the difference of oil pressure is corresponding；
Correcting module 30, is additionally operable to obtain revised according to described theoretical distributive value and described correction factor
Distributive value；
Control module 20, is additionally operable to, according to described revised distributive value, described electromotor is carried out oil spout control
System.
When air-distributor pressure keeps balance with fuel pressure, i.e. air-distributor pressure and fuel pressure
When difference is zero, it is not necessary to theoretical distributive value is modified；If difference is not zero, need to revise.In advance
First pass through experiment and obtain the correction factor of air-distributor pressure and the difference of fuel pressure, when inlet manifold pressure
When power is more than fuel pressure, needing to increase distributive value, correction factor is less than 1, when air-distributor pressure is less than
During fuel pressure, needing to reduce distributive value, correction factor is more than 1.At the air-distributor pressure obtaining vehicle
After fuel pressure, acquisition module 10, according to the data of storage, determines air-distributor pressure and fuel pressure
Correction factor corresponding to difference, correcting module 30 calculates revised distributive value, and control module 20 is pressed
According to revised distributive value, electromotor is carried out Injection Control.
Further, the control device of this Engine Injection Mass also includes:
Output module, is used for exporting information, to have pointed out the current distributive value of electromotor described in user
Reach upper limit distributive value.User is reminded to check electromotor, to get rid of engine failure as early as possible.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every
Utilize equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, or directly or
Connect and be used in other relevant technical fields, be the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. the control method of an Engine Injection Mass, it is characterised in that the control of described Engine Injection Mass
Method processed includes:
Air inflow based on inlet sensor module detection obtains the theoretical distributive value of the electromotor of vehicle；
Work information according to described electromotor obtains the actual air inflow of described electromotor, and according to described
Actual air inflow obtains the upper limit distributive value of described electromotor；
If described theoretical distributive value is more than or equal to described upper limit distributive value, then according to described upper limit distributive value
Described electromotor is carried out Injection Control；
If described theoretical distributive value is less than described upper limit distributive value, then according to the inlet manifold pressure of described vehicle
Described theoretical distributive value is modified by power and fuel pressure, and according to revised described theoretical distributive value
Described electromotor is carried out Injection Control.
The control method of Engine Injection Mass the most according to claim 1, it is characterised in that described
The step of the upper limit distributive value according to the described actual air inflow described electromotor of acquisition includes:
Obtain gear information and the rotary speed information of described electromotor；
Determine electromotor under described gear information and described rotary speed information, described actual air inflow is corresponding
Distributive value, and using the described distributive value that gets as described upper limit distributive value.
The control method of Engine Injection Mass the most according to claim 1, it is characterised in that described
Described theoretical distributive value is modified by air-distributor pressure and fuel pressure according to described vehicle, and presses
The step described electromotor being carried out Injection Control according to revised described theoretical distributive value includes:
Obtain air-distributor pressure and the fuel pressure of vehicle, determine described air-distributor pressure and described combustion
The correction factor that the difference of oil pressure is corresponding；
Revised distributive value is obtained according to described theoretical distributive value and described correction factor, and according to described
Revised distributive value carries out Injection Control to described electromotor.
The control method of Engine Injection Mass the most according to any one of claim 1 to 3, it is special
Levying and be, the described work information according to described electromotor obtains the step of the actual air inflow of described electromotor
Suddenly include:
Institute is obtained according to engine displacement, engine cylinder number, electromotor charging efficiency and engine speed
State the actual air inflow of electromotor.
The control method of Engine Injection Mass the most according to claim 4, it is characterised in that described
If described theoretical distributive value is more than or equal to described upper limit distributive value, then according to described upper limit distributive value to institute
After stating the step that electromotor carries out Injection Control, the control method of described Engine Injection Mass also includes step
Rapid:
Output information, has reached upper limit distributive value with the distributive value pointing out electromotor described in user current.
6. the control device of an Engine Injection Mass, it is characterised in that the control of described Engine Injection Mass
Device processed includes:
Acquisition module, obtains the theory of the electromotor of vehicle for air inflow based on inlet sensor module detection
Distributive value；
And, according to the actual air inflow of the work information described electromotor of acquisition of described electromotor, and according to
Described actual air inflow obtains the upper limit distributive value of described electromotor；
Control module, if for described theoretical distributive value more than or equal to described upper limit distributive value, then according to
Described upper limit distributive value carries out Injection Control to described electromotor；
Correcting module, if for described theoretical distributive value less than described upper limit distributive value, then according to described car
Air-distributor pressure and fuel pressure described theoretical distributive value is modified；
Described control module, is additionally operable to carry out described electromotor according to revised described theoretical distributive value
Injection Control.
The control device of Engine Injection Mass the most according to claim 6, it is characterised in that described
Acquisition module, is additionally operable to obtain gear information and the rotary speed information of described electromotor；
And, determine electromotor under described gear information and described rotary speed information, described actual air inflow
Corresponding distributive value, and using the described distributive value that gets as described upper limit distributive value.
The control device of Engine Injection Mass the most according to claim 6, it is characterised in that described
Acquisition module, is additionally operable to obtain air-distributor pressure and the fuel pressure of vehicle, determines described inlet manifold
The correction factor that pressure is corresponding with the difference of described fuel pressure；
Described correcting module, after being additionally operable to obtain correction according to described theoretical distributive value and described correction factor
Distributive value；
Described control module, is additionally operable to, according to described revised distributive value, described electromotor is carried out oil spout
Control.
9., according to the control device of the Engine Injection Mass according to any one of claim 6 to 8, it is special
Levy and be, described acquisition module, it is additionally operable to according to engine displacement, engine cylinder number, electromotor inflation
Efficiency and engine speed obtain the actual air inflow of described electromotor.
The control device of Engine Injection Mass the most according to claim 9, it is characterised in that institute
The control device stating Engine Injection Mass also includes output module, is used for exporting information, to point out use
The current distributive value of electromotor described in family has reached upper limit distributive value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513986.1A CN105986917A (en) | 2016-06-30 | 2016-06-30 | Control method and device for oil injection amount of engine |
| PCT/CN2016/109498 WO2018000741A1 (en) | 2016-06-30 | 2016-12-12 | Control method and device for oil injection amount of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513986.1A CN105986917A (en) | 2016-06-30 | 2016-06-30 | Control method and device for oil injection amount of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105986917A true CN105986917A (en) | 2016-10-05 |
Family
ID=57044433
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610513986.1A Pending CN105986917A (en) | 2016-06-30 | 2016-06-30 | Control method and device for oil injection amount of engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105986917A (en) |
| WO (1) | WO2018000741A1 (en) |
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| WO2018000741A1 (en) * | 2016-06-30 | 2018-01-04 | 深圳市元征科技股份有限公司 | Control method and device for oil injection amount of engine |
| CN110469416A (en) * | 2019-09-29 | 2019-11-19 | 潍柴动力股份有限公司 | A kind of engine control, control device and engine |
| CN110905676A (en) * | 2019-12-04 | 2020-03-24 | 潍柴动力股份有限公司 | Engine performance optimization method and device and electronic control unit |
| CN112648097A (en) * | 2020-12-29 | 2021-04-13 | 东台市建东机械制造有限公司 | Oil injection control method of diesel engine |
| CN113062812A (en) * | 2021-04-26 | 2021-07-02 | 中国第一汽车股份有限公司 | Engine safety monitoring and detecting method, device, medium and electronic equipment |
| CN114673603A (en) * | 2022-04-12 | 2022-06-28 | 中国第一汽车股份有限公司 | Safety monitoring method and device for engine control system, computer equipment and medium |
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| CN110388281B (en) * | 2019-05-23 | 2023-05-12 | 上海齐耀动力技术有限公司 | Fuel oil supply system and method for hot air engine |
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| CN110469416A (en) * | 2019-09-29 | 2019-11-19 | 潍柴动力股份有限公司 | A kind of engine control, control device and engine |
| CN110905676A (en) * | 2019-12-04 | 2020-03-24 | 潍柴动力股份有限公司 | Engine performance optimization method and device and electronic control unit |
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| CN114673603A (en) * | 2022-04-12 | 2022-06-28 | 中国第一汽车股份有限公司 | Safety monitoring method and device for engine control system, computer equipment and medium |
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