CN106401829A - Method for determining a mounting angle of a high-pressure pump - Google Patents
Method for determining a mounting angle of a high-pressure pump Download PDFInfo
- Publication number
- CN106401829A CN106401829A CN201610604960.8A CN201610604960A CN106401829A CN 106401829 A CN106401829 A CN 106401829A CN 201610604960 A CN201610604960 A CN 201610604960A CN 106401829 A CN106401829 A CN 106401829A
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- pressure pump
- crank shaft
- shaft angle
- pressure
- angle
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000446 fuel Substances 0.000 claims abstract description 58
- 238000002485 combustion reaction Methods 0.000 claims abstract description 37
- 230000006835 compression Effects 0.000 claims abstract description 36
- 238000007906 compression Methods 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 68
- 230000002085 persistent effect Effects 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 description 20
- 238000012546 transfer Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000018199 S phase Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- 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
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- 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
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
- F02M59/368—Pump inlet valves being closed when actuated
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a method for determining an installation angle of a high-pressure pump (15) with an electrical suction valve (16) of a crankshaft of an internal combustion engine, in which the high-pressure pump (15) for conveying fuel from a low-pressure region to a high-pressure accumulator (18) via a delivery volume (26) of the high-pressure pump (15). At a suction valve (16), a travel limiter (33) used for a valve piston (30) can be adjusted between a first position and a second position by means of an electromagnet (32), so that the valve piston separates the low-pressure region from the delivery volume (26) of the high-pressure pump (15). In the first position, the valve piston (30) cannot be closed, and at the second position, the valve piston (30) can be closed. A value of a crankshaft angle is determined. In a situation of the value, a second position of the travel limiter (33) is set, fuel delivery to the high-pressure accumulator (18) is carried out in a complete compression stage of the high-pressure pump (15), and the installation angle of the high-pressure pump (15) can be deduced from the value of the crankshaft angle.
Description
Technical field
The present invention relates to for ask for high-pressure pump the method for installation position angle setting and for its execution computing unit and
Computer program.
Background technology
Can apply as high-pressure pump in conjunction with piston pump, will to fire with the suction valve being capable of free-moving valve piston
Material compression is until desired pressure value（So-called rail pressure）And continue to be transmitted to high-pressure accumulator（Common rail）In.Described
Inhale valve to open in stroke and make fuel outwardly and can in the compression travel of piston so in inhaling of piston
It is steered so that this suction valve closes, so as not to make fuel flow out in low pressure.
For example known suction valve from DE 10 2,013 201 974 A1, which use electricity control valve so as to open or
Close for the distance in transmission capacity from area of low pressure to high-pressure pump for the fuel.
Content of the invention
According to invention proposes being used for asking for the method for the installation position angle setting of high-pressure pump and the calculating for its execution
Unit and computer program, they have the feature according to the present invention.Favourable design is preferred embodiment and other is real
Apply example and the theme of ensuing explanation.
The method according to the invention is used for asking for the installation of the high-pressure pump with electric suction valve of the bent axle with regard to internal combustion engine
Position angle, wherein high-pressure pump are used for for fuel being sent to high-pressure accumulator from area of low pressure through the transmission capacity of high-pressure pump
In.Here, inhaling at valve, for the distance limited section of valve piston（This valve piston is by area of low pressure from the transmission capacity of high-pressure pump
Separate）Can adjust between first position and second position by electromagnet, in this first position, valve piston can not close
Close, in this second position, valve piston can close.Ask for such value of crank shaft angle, in the case of this value, when being provided with
During the second position of distance limited section, enter during the complete compression stage being transmitted in high-pressure pump of fuel to high-pressure accumulator
OK, and it is inferred to the installation position angle setting of high-pressure pump from the described value of crank shaft angle.
In the case of such suction valve, usually, there is not the mechanical connection between distance limited section and valve piston,
Described distance limited section can for example refer to magnetic pivot（Magnetanker）.Mechanical spring force can be applied by the spring of machinery
It is added on magnetic pivot and this magnetic pivot is maintained in base position.By being energized to electromagnet, magnetic pivot with respect to electromagnet
Position can change（Especially against the spring-force driven dual of mechanical spring）, thus described distance limited section changes from first position
To second position.It means that inhaling valve usually opening in currentless state, and completely close only in energising
Possible in state, as long as pressure applies to valve piston.Be capable of by this way is the absorption rank although in high-pressure pump
Duan Zhong, fuel is from the transmission capacity that area of low pressure is drawn onto high-pressure pump, but fuel then holds from transmission during compression stage
Amass and be sent in high-pressure accumulator, when inhaling valve and being of completely closed.Otherwise, during compression stage, fuel is back sent to low pressure
In region.
But, unfavorable in such high-pressure pump can be：Installation position angle setting namely the executor corresponding to high-pressure pump
（Such as piston）Top dead point（Transition part in from compression stage to suction phase）Crank shaft angle need not be in each internal combustion
Identical in machine.This can be, for example, due to component tolerance or manufacture or installation.But, in order to pointedly setting or adjusting
Pressure in high-pressure accumulator, can pointedly be set in the combustion during compression stage using the valve of inhaling of the electricity being previously mentioned
The transmission of material, method is：By described suction valve closure for example in specific crank shaft angle.But in this regard, with regard to accurate installation position
The understanding of angle setting is necessary, because otherwise comparing desired, less or more fuel are transmitted or compress.
Using proposed method now it is possible that being to ask for installation position angle setting with the electric high-pressure pump inhaling valve.
Here makes full use of, and there is such crank shaft angle, at this crank shaft angle, when inhaling valve closure or setting second position, combustion
Expect in high-pressure accumulator be transmitted in whole compression stage during carry out.Here, it refers to so-called full transmission.Work as electromagnetism
Body is so energized so that distance limited section is at the dead point alreading exceed bottom when high-pressure pump（From suction phase to compression stage
In transition part）When just return in first position, then carry out this full transmit all the time.Here, it is noted that energising end
Point need not be overlapped with the arrival of first position in time.For being the reason this, after the terminal of energising, distance limits
Portion is not yet immediately returned in first position, but cuts down magnetic force in electromagnet first and and then distance limited section is necessary
Fall in first position.Then, in the compression stage having existed at this moment, distance limited section is no longer possible to return to first
In position, because pressure is already applied on valve piston and is also applied on distance limited section.Therefore, exceed whole compression stage
Ground, delivers fuel in high-pressure accumulator.This can for example at the pressure foundation in high-pressure accumulator for example by pressure
The assessment of force transducer is identifying.Here, the persistent period of compression stage can be for example simply real-time by internal combustion engine
Rotating speed is asking for.Value from crank shaft angle（Carry out full transmission at this value）The top of the executor of high-pressure pump can be now inferred to
The crank shaft angle at dead point or installation position angle setting.This such as the depend on persistent period of rotating speed and distance with regard to suction phase limit
The persistent period that portion is spent after energising terminal in second position is feasible.The latter can be for example through electromagnet
The manipulation persistent period and empirical value or test measurement asking for.Now feasible using so striked installation position angle setting
It is pointedly to close the suction valve of electricity, to set up desired pressure in high-pressure accumulator.
Preferably, ask for the described value of crank shaft angle, method is：Crank shaft angle（At this crank shaft angle, set distance limited section
Second position）So change, until identifying the fuel during the complete compression stage of high-pressure pump to high pressure pressure accumulation long
Transmission in device.This can for example be carried out in the operation first of high-pressure pump.By this way can very simply and rapidly
Ask for installation position angle setting.
Pointedly, crank shaft angle（At described crank shaft angle, set the second position of distance limited section）From corresponding to height
Crank shaft angle before the crank shaft angle at the dead point on the top of the executor of press pump moves in one direction.This can be, for example, straight towards
The direction of the crank shaft angle at dead point on corresponding described top.This is especially at first unknown installation position angle setting or corresponding to high-pressure pump
It is favourable in the case of the crank shaft angle at the dead point on the top of executor, because can simply ask for very much described by this way
Installation position angle setting.
Advantageously, during the stall stage of internal combustion engine, temporarily, at least ask for the value of crank shaft angle（Situation in this value
In, when setting the second position of distance limited section, the complete compression being transmitted in high-pressure pump of fuel to high-pressure accumulator
Carry out during stage）.By this way it can be considered that, excite such full transmission perhaps can be problematic, when
When pressure in high-pressure accumulator has been positioned at allowing at boundary.Then, further pressure rise is no longer for example to be worth the phase
Hope.But, when now temporarily, at least during the stall stage of internal combustion engine（During this stall stage, towards internal combustion engine
Fuel supply stopped and the rotating speed of internal combustion engine is reduced）When exciting full transmission, it is to avoid in high-pressure accumulator
Undesirable pressure rise, because the pressure in high-pressure accumulator is not very due to the less rotating speed of internal combustion engine anyway
Height, but at least sufficient degree ground is with possible permission boundary apart.Here is targetedly, the value of crank shaft angle（In described value
In the case of, when setting the second position of distance limited section, carry out fuel during the complete compression stage of high-pressure pump
Transmission to high-pressure accumulator）Light from the stall stage and just asked for because now without problem excite described
Full transmission.But also it can be considered that, just have begun to exciting of full transmission before the starting point in stall stage, for example identification
After the stop signal of internal combustion engine.
Advantageously, if before the terminal in the stall stage of internal combustion engine, in the complete compression stage phase of high-pressure pump
Between the transmission in high-pressure accumulator for the unidentified fuel, then crank shaft angle（In the case of this crank shaft angle, the second of distance limited section
Position is set）In the stall stage of at least one ensuing internal combustion engine, considering in the accordingly previous stall stage
So change in the case of the intermediate value of this crank shaft angle being reached at terminal long, complete in high-pressure pump until identifying
Compression stage during the transmission in high-pressure accumulator for the fuel.Can occur that, crank shaft angle with step as mode
Adjust（In this crank shaft angle（Namely transmission initial angle）When, set the second position of distance limited section）Due to little step-length thus
Until the terminal in stall stage just reaches full transmission.If the intermediate value of the now described crank shaft angle just reaching till that time for example by
Preserve and used again in one of follow-up stall stage, then need not just using crank shaft angle with step be from the beginning
The change of mode is starting and can more rapidly reach full transmission.Here, it is also possible to occur that, needs two altogether
The above stall stage, until reaching full transmission.
Advantageously, ask for the value of crank shaft angle in the case of the rotating speed considering internal combustion engine.In this way it is possible to also will
More accurately ask for installation position angle setting, because the persistent period of suction phase and compression stage depends on rotating speed.
Preferably, ask for the described value of crank shaft angle, method is：Ask for such rotating speed of internal combustion engine, from this rotating speed,
Carry out fuel during the complete compression stage of high-pressure pump to transmit in high-pressure accumulator, when setting the second of distance limited section
During position.Because described rotating speed determines the persistent period of suction phase and compression stage, can be then：Feelings in little rotating speed
In condition, suction phase so continues so that distance limited section all returns in first position in any situation long.If this
When for example initiate to ask for rotating speed from little rotating speed（Full transmission is produced from this rotating speed）, then the striked value of crank shaft angle is very accurate
Really the crank shaft angle at the dead point on corresponding top.
Advantageously, the described value of crank shaft angle, that is, in this rotating speed, the suction of high-pressure pump are asked in the case of such rotating speed
The persistent period taking the stage corresponds to from setting second position until returning to the persistent period of first position.If from setting the
The persistent period energy that two positions are spent in the persistent period or distance limited section that return to first position set second
Enough asked for or be identified, then can pointedly be set corresponding rotating speed.Here, the striked value of crank shaft angle is very accurate
The crank shaft angle at the dead point on the corresponding top in ground.
Preferably, identifying the fuel during the complete compression stage of high-pressure pump in high-pressure accumulator
After transmission, crank shaft angle unceasingly so changes long, in the case of the other value in crank shaft angle, identifies fuel extremely
In high-pressure accumulator with the transmission than the less amount in the transmission during complete compression stage, wherein, from song
It is inferred to the installation position angle setting of high-pressure pump in the described other value of shaft angle.In other words, after reaching full transmission, bent axle
Angle（In the case of this crank shaft angle, set the second position of distance limited section）It is thus able to so continue to adjust, directly long
Reduce again to the fuel quantity being transmitted.
Here, thus this crank shaft angle moves through whole suction phase, until exceeding the dead point of follow-up bottom.Therefore
In this case, conveying capacity reduces again, because at this moment, transmission initial angle is only just deposited after the dead point exceeding bottom
?.Thus, it is inferred to installation position angle setting thus, it is possible to the dead point through bottom.
Advantageously, the desired feelings being transmitted in the installation position angle setting striked by considering to high-pressure accumulator for the fuel
Pass through predetermined set crank angle under condition（At this crank shaft angle, set the second position of described distance limited section）Come to carry out.With this side
Formula, can carry out accurately setting very much or adjusting of the desired pressure in high-pressure accumulator.
According to the computing unit of the present invention, such as controller, especially the motor controller of motor vehicles or pump controller be especially
It is arranged for executing the method according to the invention in terms of program technic.
Implement this method in the form of a computer program to be also advantageous, because this can produce especially low cost, especially
It is when the controller of execution this method can be additionally used in other tasks, and when therefore natively arranging.Calculate for providing
Suitable data medium especially magnetic, light and electricity the memorizer of machine program, such as hard disk, flash memory, EEPROM, DVD etc..
Via computer network（Internet, Ethernet etc.）Download to program is also feasible.
The further advantage of the present invention and design draw from description and appended accompanying drawing.
The present invention is schematically depicted in the drawings by embodiment and is illustrated hereinafter with reference to accompanying drawing.
Brief description
Fig. 1 schematically illustrates with the fuel injection system with the internal combustion engine of high-pressure pump inhaling valve, is wherein able to carry out
The method according to the invention.
Fig. 2 diagrammatically illustrates with the high-pressure pump inhaling valve, can execute in the present inventive method at this high-pressure pump.
Fig. 3 schematically illustrates the stroke tendency of high-pressure pump.
Fig. 4 schematically illustrates the stroke tendency of preferable and actual high-pressure pump and the position tendency inhaling valve.
Fig. 5 schematically illustrates the tendency of suction pipe pressure in the stall stage of internal combustion engine and rotating speed.
Specific embodiment
Schematically illustrate the fuel injection system 10 of internal combustion engine 40 in FIG.This fuel injection system for example includes electricity
Petrolift 14, take fuel from fuel tank 12 by this petrolift and this fuel can pass through fuel filter 13
Deliver to high-pressure pump 15.Thus, the region before high-pressure pump 15 shows as area of low pressure.High-pressure pump 15 usually with internal combustion engine 40 or
The camshaft of this internal combustion engine is connected and can thus be driven.
High-pressure pump 15 has the suction valve 16 of electricity, explains this suction valve in further detail with reference to Fig. 2.The output section of high-pressure pump 15 with
High-pressure accumulator 18, so-called rail are connected, and multiple fuel injectors 19 are connected at this high-pressure accumulator.Furthermore, through described
Fuel injector 19 can be inserted fuel in internal combustion engine 40.Additionally, pressure transducer 20 is arranged at high-pressure accumulator 18, should
Pressure transducer sets and is used for：Pressure in high-pressure accumulator 18 for the collection.
Further there is illustrated the computing unit 80 being configured to controller, this computing unit for example sets and is used for：Manipulation internal combustion engine
40 or fuel injector 19 and with electricity suction valve 16 high-pressure pump 15.Additionally, controller 80 can read in pressure transducer
20 signal and thus pressure in high-pressure accumulator 18 for the collection.
Illustrate the high-pressure pump 15 from Fig. 1 and electric suction valve 16 in fig. 2 in further detail.High-pressure pump 15 has conduct
The piston 23 of executor, this piston is actuated by cam 24.Cam can be arranged in the pump case of high-pressure pump 15 in pump side.Especially,
Cam motion is by targetedly connecting portion（For example through camshaft）Connect to internal combustion engine.In position shown here,
The superposed dead point of piston 23, namely be located at suction phase to the transition part of compression stage.
Additionally, high-pressure pump 15 has dump valve 25, connecting through this dump valve of the transmission capacity 26 of high-pressure pump 15 is paramount
Pressure accumulator.Dump valve 25 for example can be configured to check-valves by spring, thus only when in transmission capacity 26 domination have foot
When reaching high pressure, fuel can be sent to high-pressure accumulator from transmission capacity 26.
The suction valve 16 of electricity has valve piston 30, and area of low pressure is separated by this valve piston from the transmission capacity 26 of high-pressure pump 15.
Here, the fuel flowing of area of low pressure to illustrate by arrow.
Additionally, the valve 16 of inhaling of electricity has the electromagnet 32 with coil 31.Coil 31 can for example connect to controller, from
And coil 31 or electromagnet 32 can be energized.Additionally, being provided with distance limited section 33, this distance limited section in present construction is
Armature for electromagnet.
In the state being not powered on of electromagnet 32, described armature 33 can be for example by one or more springs from electromagnetism
Body 32 is extruded towards the direction of valve piston 30 with leaving.In this currentless state, the suction valve 16 of electricity or distance limit
Determine portion 33（As example illustrates here）Positioned at first position S1In.
In first position S1In, valve piston 30 can not fully close or can not by area of low pressure fully with transmission
Volume 26 is isolated, because armature 33 defines the stroke of valve piston 25.
If coil 31 or electromagnet 32 are energized, armature 33 moves and thus from valve towards the direction of electromagnet 32
Piston 30 moves with leaving.In the state of this energising, the suction valve 16 of electricity or distance limited section 33 are located at second position S2In.
In second position S2In, valve piston 30 can fully close or can by area of low pressure fully with transmission capacity
26 isolation, because armature 33 no longer limits the stroke of valve piston 25.In the state of closure, valve piston 30 defines valve seat 35.
Hereinafter, the working method together with electric suction valve 16 of high-pressure pump 15 should now be explained briefly.In initial shape
In state, inhale valve 16 and especially valve piston 30 is opened in currentless state and dump valve 25 closes.
In the suction stroke of high-pressure pump 15 or suction phase, cam 24 moves during rotational motion（As this is logical
Cross as arrow shows）, and piston 23 moves downward, namely the direction motion towards cam 24.Open due to inhaling valve 16,
It is drawn in transmission capacity 26 by this fuel.
In the compression stage or transmission stroke of high-pressure pump 15, at first electromagnet 32 is also not powered on, namely armature 33 is located at
First position S1In.Piston 23 moves upwards, and opens due to inhaling valve 16, electric toward backing towards from transfer chamber 26 from this fuel
The direction transmission of petrolift 11.Here, it is noted that valve piston 30 pressure produced in transmission capacity 26 or towards
Still close by halves in the case of the fuel flowing in the direction of area of low pressure, because armature 33 defines the row of valve piston 30
Journey.
If now for example also during compression stage, coil 31 or electromagnet 32 are energized, then armature 33 moves to second
Position S2In.Valve piston 30 being capable of direction from there through the pressure of the fuel in transmission capacity 26 or towards area of low pressure
Fuel flowing and be expressed in valve seat 32.Thus, inhale valve 16 to close.By the other stroke motion of piston 23, now passing
Send and in volume 26, set up pressure further.With reaching sufficiently high pressure, dump valve 25 is opened and is delivered fuel to height
In pressure accumulator.
Schematically illustrate tendency h of the stroke of preferable high-pressure pump with regard to crank shaft angle KW in figure 3.Here should be by
Preferably high-pressure pump is interpreted as：The angle φ at the dead point on installation position angle setting or topOTCorresponding rated value.
The angle φ at the extra dead point in topOT, show the dead point of the bottom at the dead point prior to top of high-pressure pump
Angle φ *UTTransmission initial angle φ with preferable high-pressure pumpF.Here, transmission initial angle should be interpreted as such angle,
At this angle, electric suction valve is closed, thus fuel is sent in high-pressure accumulator.As be as previously mentioned, at this
In, transmit initial angle φFDead point φ * positioned at bottomUTDead point φ with topOTBetween.Here, institute's phase is passed through in accurate position
That hopes has fuel quantity to be sent to preset and by controller（Namely the suitable energising of electromagnet）To set.By
This, being transmitted in of fuel is transmitting initial angle φFAngle φ with the dead point on the top closelyed followOTBetween angle range in carry out.
Because（As Kai Wen it has been mentioned that as）The angle at the dead point on top of actual installation position angle setting or high-pressure pump
Spend the value of not corresponding ideal all the time, then the angle of the reality at described dead point can elapse forward or backward.Usually, top is dead
The angle of the reality of point is located in φOT- ΔφTAnd φOT+ ΔφTBetween scope in, wherein, Δ φTIllustrate tolerance
Angle, as this tolerance angle can produce when mounted.
In addition show for high-pressure pump in figure 3（Here, and then this is related to preferable high-pressure pump）Top dead point
Two possible reality angle.Angle φ 'OTShow the passage backward at the dead point on top, namely the dead point on this top
More behindhand exist than in the case of ideal.Angle φ ' 'OTShow the passage forward at the dead point on top, namely this top
Dead point exists earlier than in the case of ideal.
Using φ 'FOr φ ' 'FShow the subordinate with respect to the angle shown in the dead point on the top of actual high-pressure pump
Transmission initial angle.If the angle of the reality at the dead point on the top of high-pressure pump is unknown, usually can be only using preferable
Angle is as transmission starting point.It means that, for example transmit very few or excessive fuel.
Thus in the example shown, described transmission is substituted in φ 'FWith φ 'OTBetween and in φFWith φ 'OTBetween
Carry out in angle range, that is, transmitting excessive fuel, or described transmission is substituted in φ ' 'FWith φ ' 'OTBetween and in φF
With φ ' 'OTBetween angle range in carry out, namely the very few fuel of transmission.
Show the tendency of stroke h of preferable high-pressure pump and the row of actual high-pressure pump in the diagram with regard to crank shaft angle KW
The tendency of journey h'', the installation site angularly front passage of this actual high-pressure pump.Here, described angle correspondence is shown in figure 3
Situation with the installation position angle setting elapsing forward, wherein here is shown the dead point of the bottom at the dead point following described top
Angle φUT.
Extraly, now, the position S of the suction valve of electricity is shown with regard to time t.Described position S is in moment t0Place is from first
Position S1It is converted to second position S2In, namely the suction valve closure of electricity.Here, moment t0Transmission corresponding to preferable high-pressure pump
Initial angle φF.In order to change described position, can suitably manipulate electromagnet.Because generally herein, at first must be set up
Magnetic field, then in moment t0Before be necessary for be energized start.
Now, the tendency at described position is in duration of Δ t1Period（Namely in t0And t1Between）Show the holding stage,
Namely the stage of energising.In moment t1Place, terminates energising, but the suction valve of electricity is also retained in second position S2In, and concrete and
Speech is for duration of Δ t2Namely opening stage is retained, this opening stage is for example cut down described magnetic field.In the moment
t2, can then close the suction valve of electricity.
When preferable reciprocating piston pump, it is for tendency h, the shown tendency of position S represents：The suction of electricity
Valve is reaching with angle φUTThe dead point of bottom before can be closed by high-pressure pump.Because position gone back here by high-pressure pump
In suction phase, then the suction valve of electricity also can actually close.
In the case of actual high-pressure pump, namely in the case of tendency h'', differently, in electric suction valve energy
Before enough closures, namely in moment t2Before, high-pressure pump just reach the dead point of bottom namely angle φ ' 'UT.Here is to be considered, electricity
The manipulation of magnet in the case of for preferable high-pressure pump carrying out because the transmission initial angle φ ' ' of realityFUnknown.
In this case, high-pressure pump is in moment t2Have been positioned in compression stage, this expression：Valve piston 30 is towards armature 33
Extruding.Thus, armature 33 still can not return to first position S in the case of currentless electromagnet1In, and electricity
Inhale valve to remain closed in the length of whole compression stage.It means that there is so-called full transmission, that is, compress whole
In the length in stage, fuel is sent in high-pressure accumulator.
Schematically illustrate the tendency of suction pipe pressure in the stall stage of internal combustion engine and rotating speed in Figure 5.Here, upper
In the chart in portion respectively about with ° crank shaft angle KW show with the rotating speed n of 1/min and the pressure with mbar.
About in initial period P1Destination county, start internal combustion engine stopping, namely suction pipe pressure P raise and in stall
Stage PAPeriod rotating speed n reduces（With the idler revolutions of about 750/min here as starting point）.Stall stage PAIt is furthermore possible to
It is divided into pass to turn stage P2With go out the pendulum stage（Auspendelphase）P3.As can be seen that from chart, internal combustion engine also can
Enough going out to put stage P3Middle backswing.
In the chart of bottom（This chart depicts with regard to ° crank shaft angle KW the rotating speed n with 1/min）, more
Plus the stall stage P of chart from top has been shown in detailAIntercepting part.Except corresponding to when the trap that throttles is opened
Tendency n of rotating speed, illustrates tendency n' when the trap that throttles closes and in addition in the position of the optimization of the trap that throttles
Tendency n''.Accurate rotating speed tendency in the stall stage is thus, it is possible to pointedly be affected.
Full transmission（For example illustrate this full transmission by Fig. 4）Can be used at this point for for the present invention.In addition, this
When being capable of transmission initial angle or moment t0Initiate from left side（For example in φΑPlace）So long towards the direction at the dead point on top
（Namely in the diagram to the right）Passage, until producing full transmission.Described full transmission can be for example with regard to the pressure in high-pressure accumulator
Power raise persistent period and to ask for by pressure transducer.
Moment（At this moment, thus start passage transmission initial angle or moment t0）Here can for example be located at stall rank
Section PAStarting point.But also it can be considered that, this moment somewhat exists earlier because（Respectively according to situation）
For example can therefrom obtain, not immediately enter full transmission, thus the thus too high pressure in high-pressure accumulator
Risk less.
From value φ of crank shaft angle ' ' 'FIn（In this value, when second position S of the suction valve setting electricity2When, can produce full
Transmission）Can now be inferred to the reality at the dead point on top of high-pressure pump angle φ ' 'OT.
Here, persistent period namely Δ t can for example be asked for first1+Δt2, in this persistent period, the suction valve of electricity is located at
In second position.This measured value for example with regard to power on duration with for closing period or empirical value and feasible.This
Plant duration of Δ t1+Δt2Bent axle angular difference φ can be now scaled with regard to the rotating speed of internal combustion engine（Δt1+Δt2）.
Because the angle φ at the dead point on topOTDead point φ with bottomUTAngle between difference known to（For example as
In Fig. 2 visible as be 90 °）, and because moment t2At least substantially fall bottom in the generation first of full transmission
The angle φ at dead pointUT, then can thus simply ask for very much the reality at the dead point on top angle φ ' 'OT.This for example obtain for
φ''OT= φ'''F- （φ（Δt1+Δt2）-（φUT-φOT））.
Now also can produce, if should be excited during being completely transmitted in the stall stage, logical during the stall stage
Cross passage described transmission initial angle or the moment t with step as mode0Then full transmission will not be obtained because internal combustion engine and thus with
And high-pressure pump is not rotated further by.As can be seen from Fig. 5, the stall stage only continues the length of several revolutions.
Crank shaft angle（In the case of being previously mentioned, for example the terminal in the stall stage has reached this crank shaft angle）Use here
Intermediate value φZRefer to.In the follow-up stall stage, such as, in the stall stage later or more later, can now weigh
Newly start transmission initial angle or moment t0Elapsed.Here, can be now in intermediate value φZPlace starts and need not weigh
Newly in angle φAPlace starts.By this way, in little step-length and in the case of short stall stage, in the phase in stall stage
Between still also can ask for installation position angle setting very accurately.
Additionally, now（Do not rely on：Usual run duration during whether being completely transmitted in the stall stage or in internal combustion engine
It is excited）It is possible that initial angle or moment t will be transmitted0Also elapse further after reaching full transmission, until transferring ratio
Less fuel quantity in full transmission.In moment t2Through whole transfer phase until being pushed in follow-up suction phase
Afterwards, then realize this point, wherein, described transfer phase is in the diagram in angle φUTOr φ ' 'UTStart afterwards.Then, institute
Even if state also staying open in the case of inhaling the transfer phase that valve can continue upon start.
Claims (13)
1. it is used for asking for regard to internal combustion engine（40）Bent axle with electric suction valve（16）High-pressure pump（15）Installation position angle setting
（φ''OT）Method, in this internal combustion engine, high-pressure pump（15）It is used for fuel from area of low pressure through high-pressure pump（15）Biography
Send volume（26）It is sent to high-pressure accumulator（18）In,
Wherein, inhaling valve（16）Place, for valve piston（30）Distance limited section（33）By electromagnet（32）Can be first
Position（S1）And second position（S2）Between adjust, described valve piston is by area of low pressure and high-pressure pump（15）Transmission capacity（26）
Separate, in this first position, valve piston（30）Can not close, in this second position, valve piston（30）Can close,
Wherein, ask for such value of crank shaft angle（φ'''F）, in the case of this value, when the described distance limited section of setting（33）
Second position（S2）When, fuel is to high-pressure accumulator（18）In be transmitted in high-pressure pump（15）Complete compression stage during
Carry out, and wherein, from the described value of crank shaft angle（φ'''F）In be inferred to high-pressure pump（15）Installation position angle setting（φ''OT）.
2. in accordance with the method for claim 1, wherein, ask for the described value of crank shaft angle（φ'''F）, method is：Crank shaft angle is such as
This changes long, until identifying in high-pressure pump（15）Complete compression stage during fuel to high-pressure accumulator（18）In
Transmission, wherein, in the case of this crank shaft angle, set distance limited section（33）Second position（S2）.
3. in accordance with the method for claim 2, wherein, described crank shaft angle, sets distance limit in the case of this crank shaft angle
Determine portion（33）Second position（S2）, from corresponding to high-pressure pump（15）Executor（23）The crank shaft angle at the dead point on top before
Crank shaft angle（φΑ）Move in one direction.
4. press method in any one of the preceding claims wherein, wherein, temporarily, at least in internal combustion engine（40）The stall stage
（PA）Period asks for the value of crank shaft angle（φ'''F）, in the case of this value, when setting distance limited section（33）Second position
（S2）When, in high-pressure pump（15）Complete compression stage during carry out fuel to high-pressure accumulator（18）In transmission.
5. at least quote Claims 2 or 3, in accordance with the method for claim 4, wherein, if until internal combustion engine（40）'s
The stall stage（PA）Terminal, in high-pressure pump（15）Complete compression stage during unidentified fuel to high-pressure accumulator（18）
In transmission, then described crank shaft angle is in internal combustion engine（40）At least one ensuing stall stage in, considering accordingly first
The intermediate value of this crank shaft angle being reached at the front terminal in stall stage（φZ）In the case of so change long, until
Identify in high-pressure pump（15）Complete compression stage during fuel to high-pressure accumulator（18）In transmission, wherein,
Distance limited section is set in the case of described crank shaft angle（33）Second position（S2）.
6. press method in any one of the preceding claims wherein, wherein, consider internal combustion engine（40）Rotating speed in the case of ask
Take the value of crank shaft angle（φ'''F）.
7. press method in any one of the preceding claims wherein, wherein, ask for the described value of crank shaft angle（φ'''F）, method is：
Ask for internal combustion engine（40）Such rotating speed, from this rotating speed, in high-pressure pump（18）Complete compression stage during fired
Expect high-pressure accumulator（15）In transmission, when setting distance limited section（33）Second position（S2）When.
8. press method in any one of the preceding claims wherein, wherein, in the case of such rotating speed, ask for crank shaft angle
Described value（φ'''F）, that is, in this rotating speed, the persistent period of the suction phase of high-pressure pump corresponds to from setting second position（S2）
Until returning to first position（S1）Persistent period（Δt1+Δt2）.
9. press method in any one of the preceding claims wherein, wherein, identifying in high-pressure pump（15）Complete
Fuel during compression stage is to high-pressure accumulator（18）In transmission after, crank shaft angle unceasingly so changes long, until
In the case of the other value of crank shaft angle, identify fuel to high-pressure accumulator（18）In with than in complete compression
The transmission of the less amount in the transmission during the stage, and wherein, from the described other value of crank shaft angle, it is inferred to high pressure
Pump（15）Installation position angle setting（φ''OT）.
10. press method in any one of the preceding claims wherein, wherein, fuel is to high-pressure accumulator（18）In desired
It is transmitted in and consider striked installation position angle setting（φ''OT）In the case of carried out by predetermined set crank angle, in this crank shaft angle
Distance limited section is set in situation（33）Second position（S2）.
11. computing units（80）, it is arranged for, and to execute the method as any one of aforementioned claim.
12. computer programs, described computer program causes computing unit（80）Appoint according in claim 1 to 10 for execution
Method described in one, if this computer program is in computing unit（80）Upper enforcement.
13. storage mediums that can be read by machine, described storage medium is with stored thereon according to claim 12 institute
The computer program stated.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015214320.1 | 2015-07-29 | ||
| DE102015214320 | 2015-07-29 | ||
| DE102016206762.1 | 2016-04-21 | ||
| DE102016206762.1A DE102016206762A1 (en) | 2015-07-29 | 2016-04-21 | Method for determining a mounting position angle of a high-pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401829A true CN106401829A (en) | 2017-02-15 |
| CN106401829B CN106401829B (en) | 2021-03-23 |
Family
ID=57795846
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610604960.8A Expired - Fee Related CN106401829B (en) | 2015-07-29 | 2016-07-28 | Method for determining an installation position angle of a high-pressure pump |
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| Country | Link |
|---|---|
| CN (1) | CN106401829B (en) |
| DE (1) | DE102016206762A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035540A (en) * | 2015-11-09 | 2017-08-11 | 罗伯特·博世有限公司 | For the method for the installation site angle for obtaining high-pressure pump |
| CN109751171A (en) * | 2017-11-03 | 2019-05-14 | 罗伯特·博世有限公司 | Knowledge method for distinguishing is carried out for zero conveying to high-pressure pump |
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| JPS59108865A (en) * | 1982-12-13 | 1984-06-23 | Toyota Motor Corp | Detection of fuel injection timing in diesel engine |
| WO2001086131A1 (en) * | 2000-05-12 | 2001-11-15 | Robert Bosch Gmbh | Method for determining the position of a piston of a 1-cylinder high pressure pump of a fuel metering system of a direct injection internal combustion engine |
| CN102182602A (en) * | 2011-02-01 | 2011-09-14 | 潍柴动力股份有限公司 | Method and device for measuring rail voltage based on crank angle in high-voltage co-rail system |
| JP2013167187A (en) * | 2012-02-15 | 2013-08-29 | Bosch Corp | Method of detecting high pressure fuel pump reference point, and common rail type fuel injection control device |
| DE102012105818A1 (en) * | 2012-07-02 | 2014-01-02 | Denso Corporation | Method for operating high pressure pump for pressurization of e.g. diesel fuel in internal combustion engine of vehicle, involves determining reference angle position of shaft depending on change of feed capacity during control of valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013201974A1 (en) | 2013-02-07 | 2014-08-07 | Robert Bosch Gmbh | Method for operating a fuel injection system of an internal combustion engine |
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2016
- 2016-04-21 DE DE102016206762.1A patent/DE102016206762A1/en not_active Withdrawn
- 2016-07-28 CN CN201610604960.8A patent/CN106401829B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59108865A (en) * | 1982-12-13 | 1984-06-23 | Toyota Motor Corp | Detection of fuel injection timing in diesel engine |
| WO2001086131A1 (en) * | 2000-05-12 | 2001-11-15 | Robert Bosch Gmbh | Method for determining the position of a piston of a 1-cylinder high pressure pump of a fuel metering system of a direct injection internal combustion engine |
| CN102182602A (en) * | 2011-02-01 | 2011-09-14 | 潍柴动力股份有限公司 | Method and device for measuring rail voltage based on crank angle in high-voltage co-rail system |
| JP2013167187A (en) * | 2012-02-15 | 2013-08-29 | Bosch Corp | Method of detecting high pressure fuel pump reference point, and common rail type fuel injection control device |
| DE102012105818A1 (en) * | 2012-07-02 | 2014-01-02 | Denso Corporation | Method for operating high pressure pump for pressurization of e.g. diesel fuel in internal combustion engine of vehicle, involves determining reference angle position of shaft depending on change of feed capacity during control of valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035540A (en) * | 2015-11-09 | 2017-08-11 | 罗伯特·博世有限公司 | For the method for the installation site angle for obtaining high-pressure pump |
| CN107035540B (en) * | 2015-11-09 | 2021-10-29 | 罗伯特·博世有限公司 | Method for determining the installation position angle of a high-pressure pump |
| CN109751171A (en) * | 2017-11-03 | 2019-05-14 | 罗伯特·博世有限公司 | Knowledge method for distinguishing is carried out for zero conveying to high-pressure pump |
| CN109751171B (en) * | 2017-11-03 | 2022-04-29 | 罗伯特·博世有限公司 | Method for detecting a zero delivery of a high-pressure pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106401829B (en) | 2021-03-23 |
| DE102016206762A1 (en) | 2017-02-02 |
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