CN106481469A - Dual fuel engine fuel injection control method, control device, electromotor and vehicle - Google Patents
Dual fuel engine fuel injection control method, control device, electromotor and vehicle Download PDFInfo
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Abstract
The present invention relates to technical field of vehicle, provide a kind of dual fuel engine fuel injection control method, control device, electromotor and vehicle, described dual fuel engine fuel injection control method includes：Obtain the water temperature of described dual fuel engine, and determine the oil spout map corresponding with described water temperature；Obtain rotating speed and the moment of torsion of described dual fuel engine, and determine and described rotating speed and the corresponding jeting area of moment of torsion from described oil spout map；And oil spout is carried out according to described jeting area corresponding oil spout map；Wherein, described dual fuel engine comprises the multiple operation areas corresponding with multiple temperature ranges, and each operation area adopts different oil spout map, each oil spout map comprises the multiple jeting areas corresponding to different rotating speeds and moment of torsion, and each jeting area comprises the different injection modes for gasoline and/or diesel oil.Dual fuel engine fuel injection control method of the present invention makes vehicle run smooth-going under different engine water temperatures, and keeps relatively low oil consumption and discharge.
Description
Technical field
The present invention relates to technical field of vehicle, particularly to a kind of dual fuel engine fuel injection control method,
Control device, electromotor and vehicle.
Background technology
More and more severeer with environmental problem and energy problem, electromotor is main as the world oil energy
" consumer " stands in the breach of particular concern.Meanwhile, electromotor is that the current whole world is applied
For extensive dynamic power machine, it is irreplaceable at short notice, therefore how to reduce the oil consumption of electromotor,
So that its economy is become better and better, increasingly environmental protection, in recent years global Ge great automobile vendor lay siege to
Target.
Traditional electromotor is broadly divided into gasoline engine and diesel engine, and gasoline exhaust is preferable, but its side of lighting
Formula determines that its fuel economy is poor, and the compression and combustion mode of diesel engine ensure that fuel economy, but phase
The NO answeringXAnd other pollutant emission is higher.In this regard, the double fuel technology that begins one's study in prior art,
Develop dual fuel engine, described dual fuel engine refers to gasoline intake port injection, and diesel oil is in cylinder
With the gasoline that ignites, this spray regime is for oil consumption and NO for injectionXAnd Soot (i.e. soot is diesel oil
One of noxious emission of machine) emission performance have very big optimization.In the structure of dual fuel engine,
Vehicle torque through a series of calculate after, finally gasoline to be converted into, the pre- distributive value of diesel oil and diesel oil
Main jet oil mass etc..Therefore, in vehicle operation, the real-time running state according to vehicle and phase are needed
Close environment parameters revision dual-fuel distributive value, to ensure the abundant burning of fuel.
But, the combustion system of dual fuel engine belongs to quasi-Homogeneous combustion system, and which is for starting
Machine water temperature is very sensitive, can not solve dual fuel engine in different water temperatures simply by revising
The lower normal problem run.
Content of the invention
In view of this, it is contemplated that proposing a kind of dual fuel engine fuel injection control method, double to solve
The problem that engine fuel runs under different engine water temperatures.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
A kind of dual fuel engine fuel injection control method, described dual fuel engine fuel injection control method includes：
Obtain the water temperature of described dual fuel engine, and determine the oil spout map corresponding with described water temperature；Obtain
The rotating speed of described dual fuel engine and moment of torsion, and determine and described rotating speed and torsion from described oil spout map
The corresponding jeting area of square；And oil spout is carried out according to described jeting area corresponding oil spout map；Its
In, described dual fuel engine comprises the multiple operation areas corresponding with multiple temperature ranges, and each
Operation area adopts different oil spout map, each oil spout map to comprise corresponding to different rotating speeds and moment of torsion
Multiple jeting areas, each jeting area comprises the different injection modes for gasoline and/or diesel oil.
Further, the plurality of operation area includes：Cold operation region；Middle temperature operation area and
Hot operation region.
Further, the oil spout map that described cold operation region adopts comprises：Spray in advance including diesel oil, bavin
First jeting area of spray after oily main jet and diesel oil；And inclusion gasoline gas-duct jetting, diesel oil spray and bavin in advance
Second jeting area of oily main jet.
Further, the oil spout map that described middle temperature operation area adopts comprises：Including the pre- spray of diesel oil and bavin
3rd jeting area of oily main jet；And include gasoline gas-duct jetting, diesel oil spray in advance and diesel oil main jet the
Four jeting areas.
Further, the oil spout map that described hot operation region adopts comprises：Spray in advance including diesel oil, bavin
5th jeting area of spray after oily main jet and diesel oil；The 6th spray including the pre- spray of diesel oil and gasoline gas-duct jetting
Penetrate region；And include diesel oil spray in advance, the 7th jeting area of diesel oil main jet and gasoline gas-duct jetting.
With respect to prior art, dual fuel engine fuel injection control method of the present invention has following excellent
Gesture：
Dual fuel engine fuel injection control method of the present invention solves the low water temperature of dual fuel engine
The problem of oil consumption and deterioration of emission is so that vehicle runs smooth-going under different engine water temperatures, and protects
Hold relatively low oil consumption and discharge, improve customer experience, be conducive to client to pass through NEDC (the New
European Driving Cycle, i.e. new European driving pattern) emission test.
Another object of the present invention is directed to a kind of dual fuel engine Injection Control device, double to solve
The problem that engine fuel runs under different engine water temperatures.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
A kind of dual fuel engine Injection Control device, described dual fuel engine Injection Control device includes：
Signal acquiring unit, for obtaining water temperature, rotating speed and the moment of torsion of described dual fuel engine；And master control
Unit, for determining the oil spout map corresponding with described water temperature, and determine from described oil spout map and
Described rotating speed and the corresponding jeting area of moment of torsion, and according to described jeting area corresponding oil spout map
Carry out oil spout；Wherein, described dual fuel engine comprises the multiple operations corresponding with multiple temperature ranges
Region, and each operation area adopts different oil spout map, each oil spout map to comprise corresponding to difference
Rotating speed and multiple jeting areas of moment of torsion, each jeting area comprises the different sprays for gasoline and/or diesel oil
Oily mode.
Further, described operation area includes：Cold operation region, middle temperature operation area and high temperature
Operation area.
Further, the oil spout map that described cold operation region adopts comprises：Spray in advance including diesel oil, bavin
After oily main jet and diesel oil, the first jeting area of spray and inclusion gasoline gas-duct jetting, diesel oil spray and diesel oil in advance
Second jeting area of main jet.The oil spout map that described middle temperature operation area adopts comprises：Pre- including diesel oil
3rd jeting area of spray and diesel oil main jet and inclusion gasoline gas-duct jetting, diesel oil spray and diesel oil main jet in advance
The 4th jeting area.The oil spout map that described hot operation region adopts comprises：Spray in advance including diesel oil,
The 6th of 5th jeting area of spray, the pre- spray of inclusion diesel oil and gasoline gas-duct jetting after diesel oil main jet and diesel oil
Jeting area and include diesel oil spray in advance, the 7th jeting area of diesel oil main jet and gasoline gas-duct jetting.
Described dual fuel engine Injection Control device and above-mentioned dual fuel engine fuel injection control method phase
Prior art is had the advantage that identical, be will not be described here.
A further object of the present invention is directed to a kind of electromotor, to solve dual fuel engine different
The problem run under engine water temperature.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
A kind of electromotor, is provided with above-mentioned dual fuel engine Injection Control device.
Described electromotor, is had with respect to prior art with above-mentioned dual fuel engine fuel injection control method
Dominant Facies with, will not be described here.
Another object of the present invention is directed to a kind of vehicle, is sent out in different with solving dual fuel engine
The problem run under motivation water temperature.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
A kind of vehicle, is provided with above-mentioned electromotor.
Described vehicle, is had with respect to prior art with above-mentioned dual fuel engine fuel injection control method
Dominant Facies are same, will not be described here.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, the present invention's
Schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.?
In accompanying drawing：
Fig. 1 is the schematic flow sheet of the dual fuel engine fuel injection control method described in the embodiment of the present invention；
Fig. 2 carries out jeting area for the oil spout map to cold operation region described in the embodiment of the present invention and draws
The schematic diagram dividing；
Fig. 3 is that the oil spout map of the centering temperature operation area described in the embodiment of the present invention carries out jeting area and draws
The schematic diagram dividing；
Fig. 4 carries out jeting area for the oil spout map to hot operation region described in the embodiment of the present invention and draws
The schematic diagram dividing；
Fig. 5 is the structural representation of the dual fuel engine Injection Control device described in the embodiment of the present invention.
Description of reference numerals：
1- first jeting area, 2- second jeting area, 3- the 3rd jeting area, 4- the 4th jeting area,
5- the 5th jeting area, 6- the 6th jeting area, 7- the 7th jeting area, 8- signal acquiring unit, 9-
Main control unit.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the present invention and the spy in embodiment
Levy and can be mutually combined.
In addition, the term " first " being previously mentioned in an embodiment of the present invention, " second " etc. are only used for retouching
State purpose it is impossible to being interpreted as indicating or implying relative importance.
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in figure 1, one embodiment of the invention proposes a kind of dual fuel engine fuel injection control method,
Specifically include following steps：
Step 100, obtains the water temperature of described dual fuel engine, and determines corresponding with described water temperature
Oil spout map.
Wherein, described dual fuel engine comprises the multiple operation areas corresponding with multiple temperature ranges,
And each operation area adopts different oil spout map.
In this step, the water temperature of dual fuel engine can be by temperature sensor of being placed in engine cylinder etc.
Obtain.Oil spout map can be obtained by test, which illustrates engine speed, engine torque and oil spout
The corresponding relation of amount, can be according to the engine speed of vehicle that is to say, that passing through to inquire about oil spout map
Determine oil mass and Injection strategy with engine torque.The related data of oil spout map is all normal by this area
Rule test obtains, and therefore the present embodiment here is not described to the concrete acquisition process of oil spout map.
According to the ruuning situation of dual fuel engine, the present embodiment is preferably drawn according to different engine water temperatures
Divide three operation areas, including：Cold operation region, middle temperature operation area and hot operation region.Its
In, low, medium and high temperature represents three temperature ranges, and the corresponding temperature of these three temperature ranges is
Low temperature<Middle temperature<High temperature.
Preferably, the corresponding temperature range in described cold operation region is less than 10 DEG C, and described middle temperature is run
The corresponding temperature range in region is 10 DEG C to 60 DEG C, the corresponding temperature Operational Zone in described hot operation region
Between be more than 60 DEG C.
In other embodiments of the invention, it would however also be possible to employ other temperature ranges dividing operation area,
The quantity of operation area dividing and the selection of temperature range are not restricted to this.
Therefore, in step 100, adopted by making each have the operation area of different engine water temperatures
Different oil spout map it is achieved that under different engine water temperatures using different fuel injection control strategy.
Step 200, obtains rotating speed and the moment of torsion of described dual fuel engine, and from described oil spout map
Determine and described rotating speed and the corresponding jeting area of moment of torsion.
Wherein, each operation area of described dual fuel engine adopts different oil spout map, and each
Oil spout map comprises the multiple jeting areas corresponding to different rotating speeds and moment of torsion, and each jeting area comprises pin
Different injection modes to gasoline and/or diesel oil.
In step 100 although the Injection strategy adopting under different engine water temperature is different, but same
Under one engine water temperature, distributive value also can be affected by engine speed and engine torque, therefore more than
As a example cold operation region, middle temperature operation area and the hot operation region stated, enter one by step 200
The oil spout map that these three operation areas adopt is divided into multiple jeting areas, specific division methods by step
As follows.
First, cold operation region
As shown in Fig. 2 the present embodiment according to engine speed and engine torque by cold operation region
Oil spout map is divided into two jeting areas, is the first jeting area 1 and the second jeting area 2.
First jeting area 1 adopts pure diesel injection mode, sprays in advance including diesel oil, diesel oil main jet and diesel oil
After spray.Wherein, it is sprayed with after diesel oil beneficial to improving row's temperature, make DOC Fast light-off.In this jeting area,
Because engine water temperature is relatively low, gasoline can not burn after spraying into, therefore only carries out diesel injection.
Second jeting area 2 adopts dual fuel injection mode, spray in advance including gasoline gas-duct jetting, diesel oil and
Diesel oil main jet.Understand, in this jeting area, engine speed has reached a high value in conjunction with Fig. 2, because
This speed load is higher, belongs to the region suddenly accelerating at low temperature in vehicle, in this jeting area, starts
Machine cylinder interior-heat atmosphere is higher, can burn during gasoline intervention, so adopting dual fuel injection mode, favorably
Discharge and NO in reducing PM (Particulate Matter, particulate matter)xDischarge.
2nd, middle temperature operation area
As shown in figure 3, the present embodiment according to engine speed and engine torque by middle temperature operation area
Oil spout map is divided into two jeting areas, is the 3rd jeting area 3 and the 4th jeting area 4.
3rd jeting area 3 adopts pure diesel injection mode, including the pre- spray of diesel oil and diesel oil main jet.In
Under the corresponding engine water temperature in warm operation area, can not burn well after the intervention of Smaller load gasoline, discharge
Deteriorate on the contrary, the therefore the 3rd jeting area 3 adopts substantial amounts of diesel oil main jet, to improve the acceleration of vehicle
Can, rapidly improve hot atmosphere, thus spray after diesel oil can be removed with respect to the first jeting area 1, with
Save fuel oil.
4th jeting area 4 adopts dual fuel injection mode, spray in advance including gasoline gas-duct jetting, diesel oil and
Diesel oil main jet.When engine speed is identical with engine torque, the oil spout map of the 4th jeting area
Big with respect to the oil spout map of the second jeting area, and engine water temperature is higher, therefore engine cylinder interior-heat
Atmosphere easily improves, so gasoline can be intervened in relatively low engine speed and relatively underload, reduces
PM and NOXDischarge.
3rd, hot operation region
As shown in figure 4, the present embodiment according to engine speed and engine torque by hot operation region
Oil spout map is divided into three jeting areas, is the 5th jeting area 5, the 6th jeting area 6 and
Seven jeting areas 7.
5th jeting area 5 adopts pure diesel injection mode, sprays in advance including diesel oil, diesel oil main jet and diesel oil
After spray.This jeting area adopts three injections, makes the rate of pressure rise, noise, oil consumption and discharge be in one
The individual state comparing compromise.Illustrate, for some type of vehicle, this jeting area requires electromotor
, in below 20Nm, in below 900rpm, now engine cylinder interior-heat atmosphere is low for engine speed for moment of torsion,
Gasoline is difficult compression ignition, thus ensure that the pure diesel injection mode of this jeting area.
6th jeting area 6 adopts dual fuel injection mode, including the pre- spray of diesel oil and gasoline gas-duct jetting.
This jeting area is the optimal region of dual fuel injection, and diesel oil only serves the effect of igniting, and gasoline homogenizing fires
Burn, PM discharges almost nil, NOXControl in a very low degree.But, as shown in figure 4,
The maximum engine torque of this jeting area is restricted.
7th jeting area 7 adopts dual fuel injection mode, sprays in advance including diesel oil, diesel oil main jet and gasoline
Gas-duct jetting.For the restricted problem of maximum engine torque of the 6th jeting area 6, this inlet zone
Domain is increase diesel oil main jet on the basis of the 6th jeting area 6, has expanded maximum engine torque, and
Keep relatively low discharge and relatively low oil consumption.
Step 300, carries out oil spout according to described jeting area corresponding oil spout map.
By step 200, divide the oil spout map of each jeting area, step 300 then starts by correspondence
Oil spout map carry out oil spout.
As shown in Fig. 2 for cold operation region, when vehicle just starts to start, increasing with engine speed
Plus, carry out pure diesel injection by the oil spout map of the first jeting area 1, when engine speed arrival one is pre-
After definite value, further according to engine torque value select the first jeting area 1 oil spout map proceed pure
The oil spout map of diesel injection or the second jeting area 2 carries out dual fuel injection.
As shown in figure 3, for middle temperature operation area, when vehicle just starts to start, increasing with engine speed
Plus, carry out pure diesel injection by the oil spout map of the 3rd jeting area 3, when engine speed arrival one is pre-
After definite value, further according to engine torque value select the first jeting area 3 oil spout map proceed pure
The oil spout map of diesel oil or the 4th jeting area 4 carries out dual fuel injection.Contrast Fig. 2 and Fig. 3 it is known that
The predetermined value being changed into the engine speed of the 4th jeting area 4 from the 3rd jeting area 3 is less than from first
Jeting area 1 is changed into the predetermined value of the engine speed of the second jeting area 2, that is, indicate middle Wen Yun
In row region, just can adopt dual fuel injection when engine speed is relatively low, advantageously reduce PM and
NOXDischarge.
As shown in figure 4, for hot operation region, when vehicle just starts to start, increasing with engine speed
Plus, carry out pure diesel injection by the oil spout map of the 5th jeting area 5, when engine speed arrival one is pre-
After definite value, further according to engine torque value select the 5th jeting area 5 oil spout map proceed pure
The oil spout map of diesel injection or the 6th jeting area 6 carries out dual fuel injection, and works as engine speed and continue
Continuous when increasing to another predetermined value, need the value according to engine torque to select the 5th jeting area 5 again
Oil spout map proceeds pure diesel injection or the oil spout map of the 6th jeting area 6 proceeds double combustions
The oil spout map of material injection or the 7th jeting area 7 carries out dual fuel injection.It is apparent that the 6th inlet zone
Domain is dual fuel injection optimal region, but is limited by maximum engine torque, and the 7th jeting area
Interior corresponding engine torque is more than the 5th jeting area and the 6th jeting area, extends engine torque
Scope.Corresponding Fig. 2 and Fig. 3 it is known that in hot operation region, be changed into double from pure diesel injection
During fuel injection, corresponding engine speed is little compared to cold operation region and middle temperature operation area, that is,
In hot operation region, after starting vehicle, engine water temperature will soon rise to needed for vehicle runs
Ideal temperature (as 80 DEG C), thus not only improve guarantee vehicle smooth-going run, also by dual fuel injection
Mode ensure that low oil consumption and low emission.
For Fig. 2 to Fig. 4, it illustrates the division of jeting area in the present embodiment, but is not given
The corresponding engine speed of each jeting area and the concrete numerical value of engine torque, those skilled in the art
Grasping the present embodiment, jeting area is divided according to engine water temperature, engine speed and engine torque
After invention thinking, according to the vehicle of each vehicle, can inquire about this vehicle oil spout map obtain engine speed,
The isoparametric concrete numerical value of engine torque.
Based on the same invention thinking with above-mentioned dual fuel engine fuel injection control method, the present invention's is another
Embodiment proposes a kind of dual fuel engine Injection Control device, as shown in figure 5, including：Signal obtains
Take unit 8, for obtaining water temperature, rotating speed and the moment of torsion of described dual fuel engine；And main control unit
9, for determining the oil spout map corresponding with described water temperature, and determine and institute from described oil spout map
State rotating speed and the corresponding jeting area of moment of torsion, and according to described jeting area corresponding oil spout map
Carry out oil spout；Wherein, described dual fuel engine comprises the multiple operations corresponding with multiple temperature ranges
Region, and each operation area adopts different oil spout map, each oil spout map to comprise corresponding to difference
Rotating speed and multiple jeting areas of moment of torsion, each jeting area comprises the different sprays for gasoline and/or diesel oil
Oily mode.
For signal acquiring unit 8, it mainly obtains starting of dual fuel engine by sensor
Machine water temperature, engine speed and engine torque, than such as by the temperature sensing being placed in engine cylinder
Device obtains the engine water temperature under current vehicle operating status.
For main control unit 9, it carries out the spray that Injection Control is finally mainly by controlling vehicle itself
Oily device is realizing, and fuel injector structure and its annexation with main control unit 9, all can adopt existing
The routine techniquess of vehicle.In addition, in the present embodiment by operation area it is also preferred that being divided into engine water temperature
Cold operation region less than 10 DEG C, engine water temperature scope are 10 DEG C to 60 DEG C of middle temperature operation area
And engine water temperature is more than 60 DEG C of hot operation region.
Further, for the oil spout in cold operation region, middle temperature operation area and hot operation region
Block the division of the jeting area of map, and main control unit 9 enters according to the oil spout map of each jeting area
The process of row oil spout, identical with the embodiment of the dual fuel engine fuel injection control method corresponding to Fig. 1 or
Similar, thus the present embodiment here is not repeated.
Based on the same invention thinking of dual fuel engine fuel injection control method, the other embodiment of the present invention
Also proposed a kind of electromotor, this electromotor is provided with above-mentioned dual fuel engine Injection Control device,
And also proposed a kind of vehicle, this vehicle is provided with above-mentioned electromotor.The embodiment of the present invention proposes
The inventive principle of electromotor and vehicle and above-mentioned dual fuel engine fuel injection control method and device and specifically
Implementation process is same or similar, will not be described here.
Dual fuel engine fuel injection control method, control device, electromotor according to an embodiment of the invention
And vehicle, the present invention solves the problems, such as dual fuel engine low water temperature oil consumption and deterioration of emission so that car
Run smooth-going under different engine water temperatures, and keep relatively low oil consumption and discharge, improve visitor
Family is experienced, and is conducive to client to test by NEDC cycle bleeder.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement made etc., should be included in
Within protection scope of the present invention.
Claims (10)
1. a kind of dual fuel engine fuel injection control method is it is characterised in that described dual fuel engine
Fuel injection control method includes：
Obtain the water temperature of described dual fuel engine, and determine the oil spout map corresponding with described water temperature；
Obtain rotating speed and the moment of torsion of described dual fuel engine, and from described oil spout map determine with described
Rotating speed and the corresponding jeting area of moment of torsion；And
Oil spout is carried out according to described jeting area corresponding oil spout map；
Wherein, described dual fuel engine comprises the multiple operation areas corresponding with multiple temperature ranges,
And each operation area adopt different oil spout map, each oil spout map to comprise corresponding to different rotating speeds and
Multiple jeting areas of moment of torsion, each jeting area comprises the different injection modes for gasoline and/or diesel oil.
2. a kind of dual fuel engine fuel injection control method according to claim 1, its feature exists
In the plurality of operation area includes：Cold operation region, middle temperature operation area and hot operation area
Domain.
3. a kind of dual fuel engine fuel injection control method according to claim 2, its feature exists
In the oil spout map that described cold operation region adopts comprises：
Spray in advance including diesel oil, after diesel oil main jet and diesel oil spray the first jeting area (1)；And
Spray in advance including gasoline gas-duct jetting, diesel oil and diesel oil main jet the second jeting area (2).
4. a kind of dual fuel engine fuel injection control method according to claim 2, its feature exists
In the oil spout map that described middle temperature operation area adopts comprises：
The 3rd jeting area (3) including the pre- spray of diesel oil and diesel oil main jet；And
Spray in advance including gasoline gas-duct jetting, diesel oil and diesel oil main jet the 4th jeting area (4).
5. a kind of dual fuel engine fuel injection control method according to claim 2, its feature exists
In the oil spout map that described hot operation region adopts comprises：
Spray in advance including diesel oil, after diesel oil main jet and diesel oil spray the 5th jeting area (5)；
The 6th jeting area (6) including the pre- spray of diesel oil and gasoline gas-duct jetting；And
Spray in advance including diesel oil, the 7th jeting area (7) of diesel oil main jet and gasoline gas-duct jetting.
6. a kind of dual fuel engine Injection Control device is it is characterised in that described dual fuel engine
Injection Control device includes：
Signal acquiring unit (8), for obtaining water temperature, rotating speed and the moment of torsion of described dual fuel engine；
And
Main control unit (9), for determining the oil spout map corresponding with described water temperature, and from described oil spout
Determine and described rotating speed and the corresponding jeting area of moment of torsion in map, and according to described jeting area pair
The oil spout map answering carries out oil spout；
Wherein, described dual fuel engine comprises the multiple operation areas corresponding with multiple temperature ranges,
And each operation area adopt different oil spout map, each oil spout map to comprise corresponding to different rotating speeds and
Multiple jeting areas of moment of torsion, each jeting area comprises the different injection modes for gasoline and/or diesel oil.
7. a kind of dual fuel engine Injection Control device according to claim 6, its feature exists
In the plurality of operation area includes：Cold operation region, middle temperature operation area and hot operation area
Domain.
8. a kind of dual fuel engine Injection Control device according to claim 7, its feature exists
In the oil spout map that described cold operation region adopts comprises：Spray in advance including diesel oil, diesel oil main jet and bavin
First jeting area (1) of spray after oil；And inclusion gasoline gas-duct jetting, diesel oil spray and diesel oil main jet in advance
The second jeting area (2)；
The oil spout map that described middle temperature operation area adopts comprises：Including the pre- spray of diesel oil and diesel oil main jet the
Three jeting areas (3)；And include gasoline gas-duct jetting, diesel oil spray in advance and diesel oil main jet the 4th injection
Region (4)；
The oil spout map that described hot operation region adopts comprises：Spray in advance including diesel oil, diesel oil main jet and bavin
5th jeting area (5) of spray after oil；The 6th jeting area including the pre- spray of diesel oil and gasoline gas-duct jetting
(6)；And include diesel oil spray in advance, the 7th jeting area (7) of diesel oil main jet and gasoline gas-duct jetting.
9. a kind of electromotor is it is characterised in that be provided with according to any one of claim 6-8
A kind of dual fuel engine Injection Control device.
10. a kind of vehicle is it is characterised in that be provided with electromotor according to claim 9.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708795A (en) * | 2018-05-15 | 2018-10-26 | 北汽福田汽车股份有限公司 | Control the method, apparatus and vehicle of gasoline engine |
| CN110244565A (en) * | 2019-06-21 | 2019-09-17 | 清华大学 | A kind of SCR system partition control method and device |
| CN112177785A (en) * | 2020-09-30 | 2021-01-05 | 东风汽车集团有限公司 | Method and system for reducing particulate matter emission in low-temperature warm-up stage of gasoline direct injection engine |
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