CN102465765B - It is configured to be fed to pressurized fuel method and the control equipment of the high-pressure fuel supply pump of internal combustion engine for control - Google Patents
It is configured to be fed to pressurized fuel method and the control equipment of the high-pressure fuel supply pump of internal combustion engine for control Download PDFInfo
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- CN102465765B CN102465765B CN201110357014.5A CN201110357014A CN102465765B CN 102465765 B CN102465765 B CN 102465765B CN 201110357014 A CN201110357014 A CN 201110357014A CN 102465765 B CN102465765 B CN 102465765B
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- electric current
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- 239000000446 fuel Substances 0.000 title claims abstract description 142
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 32
- 230000001276 controlling effect Effects 0.000 claims abstract description 58
- 230000003247 decreasing Effects 0.000 claims abstract 2
- 241000196435 Prunus domestica subsp. insititia Species 0.000 claims description 23
- 230000001808 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000000051 modifying Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims 1
- 210000001367 Arteries Anatomy 0.000 description 6
- 210000003462 Veins Anatomy 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000001351 cycling Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011031 large scale production Methods 0.000 description 3
- 230000001419 dependent Effects 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 206010039897 Sedation Diseases 0.000 description 1
- 230000003213 activating Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000486 side effect Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Abstract
The invention discloses a kind of method and apparatus for controlling to be configured to be fed to pressurized fuel the high-pressure fuel supply pump of internal combustion engine, solenoid-actuated intake valve (120) is configured to biased towards the first stop position of intake valve in a first direction by biasing force, and is configured to overcome this biasing force to move through described magnetic force towards the second stop position of intake valve in a second direction that is opposite the first direction by magnetic force and is maintained at the second stop position.Said method comprising the steps of: at first time period (Δ T0, Δ T1), control electric current is applied to solenoid-actuated intake valve (120), for making intake valve move to the second stop position in a second direction by magnetic force, and intake valve is maintained at the second stop position；And at first time period (Δ T0, Δ T1) after, move along the first direction period at solenoid-actuated intake valve (120) from the second stop position, in the second time period (Δ T2), control electric current is applied to solenoid-actuated intake valve (120).It is a feature of the present invention that, in period the second time period (Δ T2), the step that control electric current is applied to solenoid-actuated intake valve (120) is included being gradually reduced control electric current, specifically control electric current is gradually decreased to zero.
Description
Technical field
The present invention relates to a kind of high pressure for controlling to be configured to be fed to pressurized fuel internal combustion engine
The method of fuel injection pump and control equipment, particularly relate to a kind of common rail, and described common rail has
There are the multiple fuel injectors in the combustor for injecting pressurized fuel into internal combustion engine.Specifically,
The present invention relates to a kind of method for controlling high-pressure fuel supply pump and control equipment, described high compression ignition
Material transfer pump includes discharge chambe, for non-pressurized fuel is transported to the open type solenoid cause of discharge chambe
Dynamic intake valve, in discharge chambe at the first plunger position (such as, so-called lower dead point position) and second
Move back and forth the fuel in discharge chambe is entered between plunger position (such as, so-called upper dead center position)
Row pressurization removable plunger and for by pressurized fuel from discharge chambe discharge to be supplied to internal combustion engine
Dump valve.The solenoid-actuated intake valve of open type of high-pressure fuel supply pump is configured to pass through magnetic force
Close or remain turned-off.The invention still further relates to a kind of computer including and being configured to be suitable to control equipment
The computer program of program code devices.
Background technology
In recent years, the power (the vibrations trend owing to reducing) that gasoline in-cylinder direct-jet (GDI) increases due to it
And therefore there is the advantage of high fuel efficiency and become to become more and more popular.In gasoline directly sprays, low
Pressurized fuel is transported to high-pressure pump from fuel tank by low-pressure fuel pump.In the discharge chambe of high-pressure pump,
Low-pressure fuel is pressurized to high pressure, and is transported to include the common rail of multiple ejector, with at height
Pressure is directly injected in the combustor of internal combustion engine.
Generally, carry out Electronic Control by the solenoid-actuated intake valve of control high-pressure fuel supply pump to pass through
The amount of the fuel under high pressure of high-pressure fuel supply pump supply.Have been known a kind of closed type solenoid-actuated enter
Air valve, the solenoid-actuated intake valve of described closed type can be by one of solenoid-actuated intake valve
Or the energising of multiple solenoid is biased into spiral shell by one or more biasing members (such as, spring) simultaneously
Spool activates the closedown direction of intake valve and opens and/or stay open.Additionally, have been known a kind of normal
The solenoid-actuated intake valve of open form, the solenoid-actuated intake valve of described open type can be by solenoid
Activate one or more solenoids energising of intake valve such as by one or more biasing members (, simultaneously
Spring) it is biased into the opening direction of solenoid-actuated intake valve and closes and/or remain turned-off, this
Bright relate to the solenoid-actuated intake valve of described open type.
For including the high pressure fuel pump of the solenoid-actuated intake valve of open type, have been known two kinds for
Control the operating principle of the solenoid-actuated intake valve of open type.
According to the operating principle of the first kind as described in DE102008054512A1, high compression ignition
First the cycling service cycle of material transfer pump includes charging period, and in charging period, fuel passes through air inlet
Valve is inhaled in discharge chambe, may move plunger in discharge chambe from the second plunger position (commonly referred to as simultaneously
For lower dead point position) move to the first plunger position (commonly referred to upper dead center position), and solenoid causes
Dynamic intake valve is opened by biasing force (such as, pass through spring) or is stayed open during charging period, its
Secondary, the cycling service cycle of described high-pressure fuel supply pump includes the spilling phase, interim in described spilling,
Fuel is overflowed from discharge chambe by intake valve, may move plunger simultaneously and moves to the from the first plunger position
Two plunger positions, and solenoid-actuated intake valve is by biasing force or by biasing force and the liquid of fuel
Pressure stays open, and the 3rd, the cycling service cycle of described high-pressure fuel supply pump includes the conveying phase,
Interim in described conveying, fuel is pressurized and by the dump valve of high-pressure fuel supply pump in discharge chambe
It is discharged to be supplied to internal combustion engine, may move plunger simultaneously and move and move to from the first plunger position
Two plunger positions, and solenoid-actuated intake valve remained turned-off by magnetic force.
According to first kind operating principle, the solenoid-actuated intake valve of open type remains turned-off, until passing through
Control electric current is applied to solenoid-actuated intake valve (that is, by control voltage being applied to solenoid cause
Dynamic intake valve) and till making removable plunger arrive upper dead center position.Then, start at removable plunger
It is towards when being moved rearwards by after cutting-off controlling electric current of lower dead point position, and open type intake valve is owing to making
With in the direction of the opening biasing force (can with when removable plunger moves towards lower dead point position by
Volume in discharge chambe is increased and is produced by the low-pressure fuel being flow in discharge chambe by intake valve
Hydraulic coupling combines) and open.When open type intake valve reaches the fully open position of intake valve, produce
Impact noise, particularly with the low engine speed of such as idle condition, this impact noise even determines
The overall noise of electromotor.
For this reduction impact noise, when open type intake valve arrives fully open position, DE10
2008054512A1 proposes after cutting-off controlling electric current, another is controlled current impulse applying
To solenoid-actuated intake valve with intake valve open motion during reduce the speed of intake valve.
According to the optional first kind operating principle as described in DE10148218A1, fuel under high pressure supplies
First the cycling service circulation answering pump includes charging period, and in described charging period, fuel passes through air inlet
Valve (if intake valve stays open during charging period) or arranged by optional auxiliary valve (if
Intake valve is made to keep during charging period by control electric current is applied to solenoid-actuated intake valve
Close) it is inhaled into discharge chambe, may move plunger simultaneously and move to from the second plunger position in discharge chambe
First plunger position, secondly, the cycling service cycle of described high-pressure fuel supply pump includes the conveying phase,
In the described conveying phase, fuel is pressurized and in being discharged to be supplied to by dump valve in discharge chambe
Combustion engine, may move plunger simultaneously and moves and move to the second plunger position, and spiral shell from the first plunger position
Spool is activated intake valve and is remained turned-off by magnetic force, and the 3rd, the week of described high-pressure fuel supply pump
Phase property cycle of operation includes the spilling phase, interim in described spilling, and fuel is overflow from discharge chambe by intake valve
Go out, may move plunger simultaneously and move to the second plunger position from the first plunger position, and solenoid causes
Dynamic intake valve is opened by biasing force or stays open.
According to Equations of The Second Kind operating principle, the solenoid-actuated intake valve of open type remains turned-off, until passing through
Control electric current is applied to solenoid-actuated intake valve, such as, by control voltage is applied to helical
But pipe activate intake valve and make removable plunger move towards upper dead center position the most do not arrive upper extremely
The moment of some position.Then, the cutting-off controlling when removable plunger still moves towards upper dead center position
After electric current, open type intake valve due to effect biasing force in the direction of the opening (can with removable
Plunger towards upper dead center position move time due to discharge chambe volume reduce and by the pressurization in discharge chambe
The hydraulic coupling that fuel produces combines) and open.Position is fully opened when what open type intake valve reached intake valve
When putting, produce impact noise, particularly with the low engine speed of such as idle condition, this impulse noise
Sound even determines the overall noise of electromotor.
In order to reduce this impact noise, when open type intake valve arrives fully open position, DE101
48218A1 proposes and after cutting-off controlling electric current, another control current impulse is applied to spiral shell
Spool activate intake valve with intake valve open motion during reduce the speed of intake valve.
But, in DE102008054512A1 and DE10148218A1 teaching at cutting-off controlling
After electric current, another control current impulse is applied to solenoid-actuated intake valve create the problem that
Timing and control current value for reducing the pulse of the speed opening motion must be by highly precisely
Regulate to actually contribute to reduce the noise of the operation of high-pressure fuel supply pump.Specifically, if arteries and veins
The timing of punching is too late or to control current value the lowest, then pulse will too late or the most weak and can not reduce and open fortune
Dynamic speed, so that intake valve is still to reach fully open position and to produce big impact at a high speed
Noise.
On the other hand, if too early or control current value is the highest in the timing of pulse, then pulse may have
The side effect having the speed opening motion making intake valve not only to reduce but also to stop.Possibly even
, intake valve is again switched off owing to controlling the pulse of electric current, in some instances it may even be possible to reach to completely close position
Put (therefore may produce the noise when arriving fully closed position), and at cutting-off controlling electric current arteries and veins
After punching, intake valve will start again at move along opening direction due to biasing force (and/or hydraulic coupling),
Until described intake valve arrives fully open position, and speed does not have any reduction, thus again has
There is high impact speed, and produce big noise.Additionally, described valve will can move in such a situa-tion
The arrival of moment after a while that dynamic plunger has had higher translational speed based on cam contour fully opens
Position.So, described valve even can be higher than the speed not applied in the case of deceleration pulse
Impact velocity arrive fully open position, and produce the biggest impact noise.
In view of this problem, it is required for the temperature of such as engine speed, fuel and intake valve
The operating condition of special characteristics accurately regulates pulse, and wherein said operating condition is due to large-scale production
Deviation may change to another high-pressure fuel supply pump from a high pressure fuel pump.Such as,
In DE102008054512A1, teach the troublesome closed loop control of use, described closed loop control
Use pressure transducer with can be according to the operating condition of such as engine speed and according to intake valve
Peculiar property regulate the control of pulse individually.
Summary of the invention
In view of the problems referred to above of prior art, it is an object of the invention to provide a kind of for particularly existing
Reducing while being less dependent on the timing of deceleration pulse and the accurately regulation of amplitude and accurately calculating
The high-pressure fuel supply including the solenoid-actuated intake valve of open type is efficiently controlled in the case of noise
The method of pump and control equipment.
For realizing above-mentioned purpose, it is proposed that one is configured to be fed to pressurized fuel for control
The method of the high-pressure fuel supply pump of internal combustion engine, one are configured to pressurized fuel supply for control
The control equipment of high-pressure fuel supply pump and a kind of computer program to internal combustion engine.
According to the first aspect of the invention, it is provided that a kind of side for controlling high-pressure fuel supply pump
Method, described high-pressure fuel supply pump is configured to pressurized fuel is fed to internal combustion engine, particularly supplies
Being total to of multiple fuel injectors in the combustor having for injecting pressurized fuel into internal combustion engine
Use track.High-pressure fuel supply pump includes: discharge chambe；Solenoid-actuated intake valve, described solenoid
Activate intake valve for non-pressurized fuel is transported to discharge chambe；Removable plunger, described removable post
Plug moves back and forth in discharge chambe between the first plunger position BTC and the second plunger position TDC, uses
In the fuel in discharge chambe is pressurizeed；And dump valve, described dump valve for by pressurized fuel from
Discharge chambe is discharged to be supplied to internal combustion engine, and solenoid-actuated intake valve is configured to be existed by biasing force
First party is biased upwardly toward the first stop position of intake valve, and is configured to be overcome by magnetic force
Biasing force moves towards the second stop position of intake valve in a second direction that is opposite the first direction
And it is maintained at the second stop position by magnetic force.
According to first aspect, said method comprising the steps of: during first time period, pass through magnetic
Control electric current is applied to solenoid-actuated intake valve by power, is used for making intake valve move in a second direction
To the second stop position and intake valve is maintained at the second position；And
In the second time period after described first time period, at solenoid-actuated intake valve from described
During second stop position moves in a first direction, control electric current is applied to solenoid-actuated air inlet
Valve.A first aspect of the present invention is characterised by: be applied to by control electric current during the second time period
Solenoid-actuated intake valve includes: is gradually reduced control electric current, is particularly gradually reduced by control electric current
To zero.
Present invention could apply to the solenoid-actuated intake valve of closed type and open type solenoid-actuated enter
Air valve.Particularly, it is configured for being closed by magnetic force and/or keeping at solenoid-actuated intake valve
In the case of the solenoid-actuated intake valve of open type closed, the first stop position is described open type spiral shell
Spool activates the fully open position of intake valve, and first direction is the solenoid-actuated air inlet of described open type
The opening direction of valve, the second stop position is completely closing of the solenoid-actuated intake valve of described open type
Position, and second direction is the closedown direction of the solenoid-actuated intake valve of described open type.On the other hand,
The closed type being opened by magnetic force and/or staying open it is configured at solenoid-actuated intake valve
In the case of solenoid-actuated intake valve, the first stop position is the solenoid-actuated air inlet of described closed type
The fully closed position of valve, first direction is the closedown side of the solenoid-actuated intake valve of described closed type
To, the second stop position is the fully open position of the solenoid-actuated intake valve of described closed type, and the
Two directions are the opening direction of the solenoid-actuated intake valve of described closed type.
Hereinafter, in conjunction with being configured to the open type helical that is closed by magnetic force and/or remains turned-off
Pipe activates intake valve and the preferred aspect of the present invention is explained in more detail.But, described preferred aspect is also
Can apply to the control of the solenoid-actuated intake valve of closed type.
In the case of the solenoid-actuated intake valve of open type, according to the first aspect of the invention, it is provided that
A kind of method for controlling high-pressure fuel supply pump, described high-pressure fuel supply pump be configured to by
Pressurized fuel is fed to internal combustion engine, is particularly fed to have for injecting pressurized fuel into internal combustion engine
Combustor in the common rail of multiple fuel injectors.High-pressure fuel supply pump includes: discharge chambe；
The solenoid-actuated intake valve of open type, the solenoid-actuated intake valve of described open type will not be for adding compression ignition
Material is transported to discharge chambe；Removable plunger, described removable plunger in discharge chambe in the first plunger position
Put (such as, so-called lower dead point position) and the second plunger position TDC (such as, so-called top dead-centre position
Put) between move back and forth, for the fuel in discharge chambe is pressurizeed；And dump valve, described discharge
Valve is for discharging pressurized fuel to be supplied to internal combustion engine from discharge chambe.High-pressure fuel supply pump normal
The solenoid-actuated intake valve of open form is configured to cut out by magnetic force or remain turned-off.
According to the present invention, comprise the following steps for controlling the method for high-pressure fuel supply pump: particularly
Control electric current being applied to solenoid-actuated intake valve to be closed after intake valve by magnetic force, the
During one time period, control electric current is applied to solenoid-actuated intake valve to keep air inlet by magnetic force
Valve cuts out, and may move plunger simultaneously and moves to second from the first plunger position (particularly lower dead point position)
Plunger position (particularly upper dead center position).Here, pressurized fuel is arranged by dump valve from discharge chambe
Go out to be supplied to internal combustion engine, may move plunger simultaneously and move to the second plunger position from the first plunger position
Put, and solenoid-actuated intake valve is remained turned-off by magnetic force and/or hydraulic coupling.Then, the method
Comprise the following steps: the second time period after the first period of time, at solenoid-actuated intake valve
During opening motion or even described open motion before and during, control electric current is applied to helical
Pipe activates intake valve, especially for making opening deceleration of motion or at least preventing solenoid from causing of intake valve
The acceleration opening motion of dynamic intake valve.According to the present invention, electric current will be controlled during the second time period
It is applied to solenoid-actuated intake valve include: gradually (continuously or repeatedly/stepwise) reduce control electricity
Stream, and the most gradually (continuously or repeatedly/stepwise) control electric current is reduced to zero.
That is, it is used for making solenoid-actuated air inlet valve position in fully closed position can applying to control electric current
After selectively keeping the first time period that solenoid-actuated intake valve cuts out, in another second time
Section, is applied to solenoid-actuated intake valve, for reducing intake valve by another control current impulse
Open acceleration and/or the speed of motion.But, according to the present invention, will control during the second time period
Electric current processed is applied to solenoid-actuated intake valve and includes being gradually reduced control electric current, particularly will control electricity
Stream gradually decreases to zero.
Such advantage is: the control electric current during the second time period initially can control electricity with height
Stream applies, but the most described control electric current is controlled to be gradually reduced, thus is reduced slowly effect
The magnetic force closed on direction at intake valve.Therefore, it can be reduced slowly magnetic force so that magnetic force will
With the biasing force autobalance in the opening direction acting on intake valve so that intake valve slowly and
Smoothly it is directed to fully open position by the biasing force slowly overcoming the slowly magnetic force of reduction, without
Produce impact noise, and substantially unrelated with the concrete operations condition of such as engine speed, Yi Jiji
Such as unrelated due to the independent characteristic of the deviation of large-scale production with intake valve in basis.Therefore, advantage
It is to need not provide accurately regulation with accurate about the independent characteristic of concrete operations condition or intake valve
Calculate.
Term " the opening motion of solenoid-actuated intake valve " or " the opening motion of intake valve " represent helical
Pipe activates at least some of opening direction at intake valve of intake valve (i.e., it is possible in fully closed position
Contact with valve seat to close the direction of motion of valve member of valve closing) on motion.There is separate type and integral type
Solenoid-actuated intake valve.Intake valve solenoid-actuated for integral type, term " solenoid-actuated enter
Air valve open motion " or " the opening motion of intake valve " represent be typically secured to valve rod or and valve rod
Integral part of valve member open motion, wherein said valve rod itself is fixed to anchor portion or and grappling
Portion is integrally formed, and described anchor portion can attracted to energization solenoid or be arranged from energization solenoid
Scold.That is, intake valve solenoid-actuated for integral type, term " opening of solenoid-actuated intake valve
Motion " or " the opening motion of intake valve " can represent valve member, valve rod and anchor portion open motion.
But, intake valve solenoid-actuated for separate type, term " solenoid-actuated intake valve open fortune
Dynamic " or " the opening motion of intake valve " preferably represent that anchor portion maybe can attracted to energization solenoid
Or the other movable member being ostracised from energization solenoid open motion.Anchor portion is the most solid
Surely arrive valve rod or formed with valve-stem integrated so that term " the opening motion of intake valve " can represent grappling
Portion and valve rod open motion.
According to a preferred embodiment of the invention, can be applicable to the solenoid-actuated intake valve of open type and normally closed
The solenoid-actuated intake valve of type, by being applied to solenoid-actuated air inlet by pwm voltage signal
Valve, controls control electric current is applied to solenoid-actuated air inlet by means of pulsewidth modulation (PWM)
Valve, and be gradually reduced control current value include: such as according to step by step decline pulse width modulation controlled step
Ground (repeatedly) reduces the dutycycle of the pwm voltage signal applied.Therefore, in the second time
During Duan, can be by reducing (repeatedly) the accounting for of pwm voltage applied in a stepped manner
Empty than (such as, by controlling the dutycycle of pwm voltage applied so that dutycycle according to
Reduce jump function to reduce) effectively it is gradually reduced control electric current.
Alternatively, according to a further advantageous embodiment of the invention, can be applicable to open type solenoid cause
Dynamic intake valve and the solenoid-actuated intake valve of closed type, by being applied to spiral shell by pwm voltage signal
Spool activates intake valve, controls to be applied to solenoid-actuated by control electric current by means of pulse width modulation controlled
Intake valve, and be gradually reduced control current value include: such as according to linear decline pulse width modulation controlled
It is continuously reduced the dutycycle of applied pwm voltage signal.Therefore, during the second time period,
(such as, can be executed by control by the dutycycle being continuously reduced applied pwm voltage
The dutycycle of the pwm voltage added so that dutycycle is according to the dullness the most linearly reducing function
Reduce function to reduce) effectively it is gradually reduced control electric current.
According to the first kind operating principle of the solenoid-actuated intake valve of open type, high-pressure fuel supply pump
Operation preferably includes: charging period, and in described charging period, fuel is inhaled into compression by intake valve
In room, may move plunger simultaneously and move to the first plunger position, and solenoid from the second plunger position
Activate intake valve during charging period by biasing force or opened by biasing force and hydraulic coupling or keep
Open；The spilling phase, interim in described spilling, fuel is overflowed from discharge chambe by intake valve, simultaneously can
Mobile plunger moves to the second plunger position from the first plunger position, and solenoid-actuated intake valve leads to
Overbias power stays open；With conveying the phase, interim in described conveying, fuel is pressurized in discharge chambe
And be discharged to be supplied to internal combustion engine by dump valve, may move plunger from the first plunger position simultaneously
Move to the second plunger position, and solenoid-actuated intake valve is remained turned-off by magnetic force.
That is, according to first kind operating principle, the phase of overflowing is after charging period, and the phase that carries is in the spilling phase
Afterwards, until circulation continues from charging period again.Specifically, at removable plunger from the first post
During the time that plug position moves to the second plunger position, overflow the phase substantially at removable plunger the
One plunger position start time, intake valve at removable plunger from the first plunger position to the second plunger
The mobile period of position closes, and once intake valve cuts out, the conveying phase, and fuel passes through
Dump valve is carried, substantially arriving the second plunger position to removable plunger.
When controlling high-pressure fuel supply pump according to first kind operating principle, the second time period preferably wrapped
Include in charging period.
According to the optional Equations of The Second Kind operating principle of the solenoid-actuated intake valve of open type, fuel under high pressure supplies
The operation answering pump includes: charging period, in described charging period, fuel at intake valve during charging period
It is inhaled in described discharge chambe by intake valve in the case of staying open, or fuel is at intake valve
The feelings remained turned-off by control electric current is applied to solenoid-actuated intake valve during charging period
The auxiliary valve arranged by selection under condition is inhaled in described discharge chambe, the most described removable plunger
The first plunger position is moved to from the second plunger position；The conveying phase, interim in described conveying, fuel exists
In discharge chambe pressurized and be discharged to be supplied to internal combustion engine by dump valve, may move plunger simultaneously
Move to the second plunger position from the first plunger position, and solenoid-actuated intake valve is protected by magnetic force
Hold closedown；And the phase of spilling, interim in described spilling, fuel is overflowed from discharge chambe by intake valve,
May move plunger simultaneously and move to described second plunger position from the first plunger position, and solenoid causes
Dynamic intake valve is opened by biasing force or by biasing force and hydraulic coupling or is stayed open.
That is, according to Equations of The Second Kind operating principle, the conveying phase is after charging period, and the phase of overflowing is in the conveying phase
Afterwards, until circulation continues from charging period again.Specifically, at removable plunger from the first post
During the time that plug position moves to the second plunger position, when removable plunger opens at the first plunger position
Time dynamic (or at least after starting towards the motion of the second plunger position soon), the spilling phase substantially opens
Beginning, intake valve is initial from the mobile period of the first plunger position to the second plunger position at removable plunger
Close, and once INO, spilling phase, fuel is overflowed by intake valve, substantially
Until removable plunger arrives the second plunger position.
When controlling high-pressure fuel supply pump according to Equations of The Second Kind operating principle, the second time period preferably wrapped
Include in spilling interim.
According to preferred embodiment, can be applicable to the solenoid-actuated intake valve of open type and closed type helical
Pipe activates intake valve, controls electric current and is applied to solenoid-actuated intake valve during the second time period,
Make before intake valve arrives the time of the first stop position, to be particularly prevented from intake valve
The acceleration of the movement on one direction.
According to another preferred embodiment, can be applicable to the solenoid-actuated intake valve of open type and normally closed
The solenoid-actuated intake valve of type, control electric current be applied to during the second time period solenoid-actuated enter
Air valve so that made intake valve first particularly arrive the time of the first stop position at intake valve before
Mobile deceleration on direction.
Preferably, can be applicable to the solenoid-actuated intake valve of open type and the solenoid-actuated air inlet of closed type
Valve, controls electric current and is applied to solenoid-actuated intake valve during the second time period, at least up to entering
Till air valve arrives the first stop position.Particularly, control electric current to be preferably gradually reduced so that should
Control electric current and reach zero after intake valve arrives the first stop position.
According to preferred embodiment, can be applicable to the solenoid-actuated intake valve of open type and closed type helical
Pipe activates intake valve, especially for above-mentioned first kind operating principle, has arrived at removable plunger
After second plunger position, control electric current and be applied to solenoid-actuated intake valve in the second time period.
Or alternatively, substantially can be when removable plunger arrives the second plunger position in the second time period
Control electric current is applied to solenoid-actuated intake valve.
Preferably, can be applicable to the solenoid-actuated intake valve of open type and the solenoid-actuated air inlet of closed type
Valve, first time period and the second time period are applied to solenoid-actuated intake valve by not controlling electric current
3rd time period is spaced apart.Preferably, can be applicable to the solenoid-actuated intake valve of open type and closed type
Solenoid-actuated intake valve, especially for above-mentioned first kind operating principle, the 3rd time period included can
Mobile plunger arrives the time of the second plunger position.Such advantage is: because in first time period
And control electric current is not applied to solenoid-actuated during the 3rd time period between the second time period
Intake valve, therefore can reduce the energy expenditure of high-pressure fuel supply pump, and can avoid thermal overload.
For above-mentioned first kind operating principle, it means that controlling electric current the most even can be at removable plunger
Have been cut off before arriving the second plunger position.Then, the hydraulic pressure of the increase in discharge chambe can be used
In keeping intake valve to close, until removable plunger arrives the second plunger position.
According to another preferred embodiment, can be applicable to the solenoid-actuated intake valve of open type and normally closed
The solenoid-actuated intake valve of type, applies from first time period to the second time period to control electric current continuously.So
After, first time period and the second time period preferably control electric current can be applied to solenoid-actuated enter
3rd time period of air valve is spaced apart, and the control electric current applied in the 3rd time period is preferably less than the
The control electric current that one time period applied, is used for keeping intake valve to close.Equally, such advantage is:
Because low control electric current being executed during the 3rd time period between first time period and the second time period
It is added to solenoid-actuated intake valve, therefore can reduce the energy expenditure of high-pressure fuel supply pump, and
Thermal overload can be avoided.For above-mentioned first kind operating principle, can be applicable to open type solenoid-actuated
Intake valve, it means that controlling electric current such as can be before removable plunger arrives the second plunger position
It is reduced.Then, the hydraulic pressure of the increase in discharge chambe may be used for keeping intake valve to close, until can
Till mobile plunger arrives the second plunger position.
Preferably, apply during first time period controls electric current more than in the applying of the second time period
Control electric current.Preferably, in the case of the solenoid-actuated intake valve of open type, in first time period
What period applied is used for making air inlet valve position in fully closed position and optionally keep intake valve to close
Control the control electric current that electric current applies more than the second time period.
Preferably, can be applicable to the solenoid-actuated intake valve of open type and the solenoid-actuated air inlet of closed type
Valve, in the second time period only during the low load operation of internal combustion engine, particularly in the idle running of internal combustion engine
Run duration, is applied to solenoid-actuated intake valve by control electric current and is performed.In high engine speed
Under, high-pressure fuel supply pump can apply electric current for keep first time period that intake valve cuts out it
After control to run in the case of electric current not applying.This is because for high engine speed, such as
Other noise source of engine noise determines overall noise, and produces when intake valve arrives fully open position
Impact noise will not significantly overall noise be made contributions.
Preferably, can be applicable to the solenoid-actuated intake valve of open type and the solenoid-actuated air inlet of closed type
Valve, particularly during the second time period, reduces according to as described above by phase step type (repeatedly)
The phase step type of dutycycle declines PWM and controls or control by being continuously reduced the linear decline PWM of dutycycle
System, the pulse width modulation controlled by means of the voltage signal applied controls to be applied to solenoid-actuated air inlet
The control electric current of valve, or, according to another preferred embodiment of the present invention, such as by using
Current threshold from the feedback of solenoid current sensing controls, and controls by means of closed loop current
It is applied to the control electric current of solenoid-actuated intake valve.This electric current controls can include passing through Current amplifier
Device controls the control current value of solenoid-actuated intake valve, and determines that solenoid causes by current sensor
The control current value of dynamic intake valve.Especially it is possible to use the control controlling solenoid-actuated intake valve
Any means of electric current, as long as the step applying to control electric current during the second time period includes gradually subtracting
The step of little control electric current.
Preferably, can be applicable to the solenoid-actuated intake valve of open type and the solenoid-actuated air inlet of closed type
Valve, intake valve is integral type intake valve, including valve member and valve rod, valve member and valve rod by integrally becoming
Shape part is formed, or valve member and valve rod interfix.Or alternatively, it is adaptable to open type solenoid
Activating intake valve and the solenoid-actuated intake valve of closed type, intake valve can be separate type intake valve, institute
State valve member and valve rod that separate type intake valve includes independently forming.
According to the second aspect of the invention, it is provided that a kind of control for controlling high-pressure fuel supply pump
Equipment, described high-pressure fuel supply pump is configured to be fed to pressurized fuel internal combustion engine, described control
Equipment is suitable to be preferable to carry out according to such as the said method of a first aspect of the present invention or the above-mentioned of the present invention
What at least one in example was described controls to be applied to spiral shell for the method controlling high-pressure fuel supply pump
Spool activates the control electric current of intake valve.
According to the third aspect of the invention we, it is provided that a kind of calculating including computer program code means
Machine program product, described computer program code means is configured to be suitable to control equipment, the suitableeest
In control unit of engine so that described control equipment is suitable to the upper of basis such as a first aspect of the present invention
State at least one in the above preferred embodiment of method or the present invention described for controlling high compression ignition
The method of material transfer pump controls to be applied to the control electric current of solenoid-actuated intake valve.
Accompanying drawing explanation
Fig. 1 show include according to Equations of The Second Kind operation can be solenoid-actuated with controlled integral type open type
The example (according to Fig. 4 of DE10148218A1) of the high pressure fuel pump of intake valve；
Fig. 2 show include can according to the first kind operate controlled integral type open type solenoid-actuated
The example of the high-pressure fuel supply pump of intake valve；
Fig. 3 show include can according to the first kind operate controlled separate type open type solenoid-actuated
The example of the high-pressure fuel supply pump of intake valve；
Fig. 4 schematically illustrates the integral type helical of the first kind operation according to high-pressure fuel supply pump
Pipe activates the control of intake valve；
Fig. 5 schematically illustrates the integral type helical of the Equations of The Second Kind operation according to high-pressure fuel supply pump
Pipe activates the control of intake valve；
Fig. 6 schematically illustrate the integral type according to the first embodiment of the present invention solenoid-actuated enter
The control of air valve；
Fig. 7 schematically illustrate integral type according to the second embodiment of the present invention solenoid-actuated enter
The control of air valve；
Fig. 8 schematically illustrate integral type according to the third embodiment of the invention solenoid-actuated enter
The control of air valve；
Fig. 9 schematically illustrate integral type according to the fourth embodiment of the invention solenoid-actuated enter
The control of air valve；
The integral type that Figure 10 schematically illustrates according to the fifth embodiment of the invention is solenoid-actuated
The control of intake valve；
The integral type that Figure 11 schematically illustrates according to the sixth embodiment of the invention is solenoid-actuated
The control of intake valve；
The integral type that Figure 12 schematically illustrates according to the seventh embodiment of the invention is solenoid-actuated
The control of intake valve；
The integral type that Figure 13 schematically illustrates according to the eighth embodiment of the present invention is solenoid-actuated
The control of intake valve；
The integral type that Figure 14 schematically illustrates according to the ninth embodiment of the present invention is solenoid-actuated
The control of intake valve；
The integral type that Figure 15 schematically illustrates according to the tenth embodiment of the present invention is solenoid-actuated
The control of intake valve；
Figure 16 A and 16B schematically illustrates not to be had during the second time period according to first kind operation
Reduce the control of the solenoid-actuated intake valve controlling electric current, operate in the second time period according to the first kind
Period reduces the control of the solenoid-actuated intake valve controlling electric current and according to the reality of the present invention
Execute the comparison of the control of the solenoid-actuated intake valve of example；And
Figure 17 A schematically illustrates the PWM of linear decline according to an embodiment of the invention
Control, and Figure 17 B schematically illustrates what phase step type according to an embodiment of the invention declined
PWM controls.
Detailed description of the invention
The preferred embodiments of the present invention are described referring to the drawings.Should be noted that the described of embodiment
Feature and many aspects can be modified or merge to be formed the further embodiment of the present invention.At this
In description, two kinds of current control methods (use the Direct Current of the feedback sensed from solenoid current
Threshold value control or PWM control) in any one to shall illustrate the thought that the present invention comprised (that is, logical
Cross the electric current that display expectation produces or the pwm signal that this electric current can be produced by display).But,
It should be noted that use for controlling any embodiment that electric current controls.It further be noted that
Be that actual current scattergram can show further feature, such as, pulsation of current is (especially at PWM
In the case of control) or the decline of electric current when intake valve clashes into mechanical stop.For the sake of simplicity, exist
Accompanying drawing omits these features, and only shows local average electric current (as smooth track).
Fig. 1 shows the high-pressure fuel supply including the solenoid-actuated intake valve of integral type open type 120
The example of pump 100, the wherein said solenoid-actuated intake valve of integral type open type 120 can be according to second
Generic operation is controlled.High-pressure fuel supply pump 100 includes discharge chambe 110 and removable plunger 130, institute
State removable plunger to be driven by cam 180, and in lower dead point position and top dead-centre position in discharge chambe 110
Move back and forth between putting.In addition to solenoid-actuated intake valve 120, high-pressure fuel supply pump 100 is also
Including for low-pressure fuel being transported to the auxiliary valve 150 of discharge chambe 110 from inlet channel 160 and being used for
From discharge chambe 110, fuel under high pressure is transported to the discharge that the common rail (not shown) with internal combustion engine is connected
The dump valve 140 of passage 170.
Solenoid-actuated intake valve 120 is that the integral type of the valve member 121 including being fixed to valve rod 122 is entered
Air valve.Valve rod 122 is biased towards the opening direction of valve 121 by spring 123.Solenoid-actuated enter
Air valve 120 also includes anchor portion 124 and the solenoid coil 125 being fixed to valve rod 122, wherein anchor portion
124 can contact with limiting member 126 in the fully open position of intake valve.Apply when electric current will be controlled
During to solenoid coil 125, produce magnetic bias force, thus act on the closedown direction of intake valve
In anchor portion 124 so that can be by applying to control electric current until valve member 121 and valve seat 127 exist
Intake valve is closed till the fully closed position contact of intake valve.
When cam 180 rotates, the operation of high-pressure fuel supply pump 100 includes: charging period, described
In charging period, fuel during charging period by control electric current is applied to solenoid-actuated intake valve
120 and be inhaled into pressure by auxiliary valve 150 by intake valve 120 when making intake valve 120 remain turned-off
In contracting room 110, may move plunger 130 simultaneously and move lower dead point position BDC from upper dead center position TDC；
The conveying phase, in the described conveying phase, fuel is pressurized and arranged by dump valve 140 in discharge chambe 110
Go out to be supplied to internal combustion engine, may move simultaneously plunger 130 from lower dead point position BDC move to upper extremely
Put position TDC, and solenoid-actuated intake valve 120 is remained turned-off by magnetic force；With overflow the phase,
Interim in described spilling, fuel is overflowed from discharge chambe 110 by intake valve 120, may move plunger simultaneously
130 move to upper dead center position TDC, and solenoid-actuated intake valve 120 from lower dead point position BDC
By spring 123 by means of biasing force and the hydraulic coupling of the fuel possibly by intake valve 120 spilling
Open or stay open (Equations of The Second Kind operates, referring to Fig. 5).In aforesaid operations, intake valve exists
Remain turned-off during charging period, and low-pressure fuel is only fed to discharge chambe by auxiliary valve 150
110.But, intake valve 120 can also be controlled such that at least in the portion of time of charging period,
Low-pressure fuel is by intake valve 120 and auxiliary valve 150 or in the situation being not provided with any auxiliary valve 150
Under be only fed to discharge chambe 110 by intake valve 120.Intake valve 120 is controlled such that in air inlet
Last moment at the end of phase is closed.
Fig. 2 shows and includes that can operate controlled integral type open type solenoid according to the first kind causes
The example of the high-pressure fuel supply pump 100 of dynamic intake valve.This high-pressure fuel supply pump 100 includes discharge chambe
110 and removable plunger 130, described removable plunger is driven by cam 180, and in discharge chambe 110
Move back and forth between lower dead point position and upper dead center position.Except solenoid-actuated intake valve 120 it
Outward, high-pressure fuel supply pump 100 also includes dump valve 140, and described dump valve 140 is for by high compression ignition
Material is transported to, from discharge chambe 110, the passing away 170 that the common rail (not shown) with internal combustion engine is connected.
Solenoid-actuated intake valve 120 is that the integral type of the valve member 121 including being fixed to valve rod 122 is entered
Air valve.Valve rod 122 is biased towards the opening direction of valve 121 by spring 123.Solenoid-actuated enter
Air valve 120 also includes anchor portion 124 and the solenoid coil 125 being fixed to valve rod 122.When controlling electricity
When stream is applied to solenoid coil 125, magnetic bias force produces, thus in the closedown direction of intake valve
On act in anchor portion 124 so that can by apply control electric current until valve member 121 in air inlet
Intake valve is made to close till the fully closed position of valve contacts with valve seat 127.
When cam 180 rotates, the operation of high-pressure fuel supply pump 100 includes: charging period, described
In charging period, fuel is inhaled in discharge chambe 110 by intake valve 120, may move plunger 130 simultaneously
Move lower dead point position BDC from upper dead center position TDC, and solenoid-actuated intake valve 120 passes through
The biasing force of spring 123 is opened or is stayed open；The spilling phase, interim in described spilling, fuel passes through
Intake valve 120 overflows from discharge chambe 110, may move plunger 130 simultaneously and moves from lower dead point position BDC
To upper dead center position TDC, and solenoid-actuated intake valve 120 is stayed open by biasing force；With
The conveying phase, in the described conveying phase, fuel is pressurized and arranged by dump valve 140 in discharge chambe 110
Go out to be supplied to internal combustion engine, may move simultaneously plunger 130 from lower dead point position BDC move to upper extremely
Point position TDC, and solenoid-actuated intake valve 120 by magnetic force remain turned-off (first kind operation,
Referring to Fig. 4).
Fig. 3 shows and includes that can operate controlled separate type open type solenoid according to the first kind causes
The example of the high-pressure fuel supply pump 100 of dynamic intake valve.It is different from the high-pressure fuel supply shown in Fig. 2
Pump 100, valve rod 122 and valve member 121 are to separate main body.Valve member 121 passes through spring 123b towards entering
The closedown direction of air valve 120 is biased, and valve rod 122 passes through spring 123a towards intake valve 120
Opening direction is biased.The biasing force of the spring 123a biasing force more than spring 123b so that when not having
Valve rod 122 is passed through towards intake valve by controlling valve member 121 when electric current is applied to solenoid coil 125
Opening direction is biased.By control electric current is applied to solenoid coil 125, act on anchor portion
Magnetic force on 124 produces, thus together with anchor portion 124 is attracted with valve rod 122 so that valve member
121 can contact with valve seat 127 in the fully closed position of intake valve 120.Separate type shown in Fig. 3
The operation of the solenoid-actuated intake valve of open type 120 is substantially similar to the solenoid shown in Fig. 2 and causes
The operation of dynamic intake valve 120, be the spilling phase after charging period, the conveying phase is then in the described spilling phase
Afterwards (first kind operation).
Fig. 4 schematically illustrates the solenoid-actuated of the first kind operation according to high-pressure fuel supply pump
The control of intake valve.Upper skidding in Fig. 4 shows at lower dead point position BDC and upper dead center position
The plunger motion of reciprocating removable plunger 130 between TDC.Center row in Fig. 4 shows to be executed
It is added to the control electric current of solenoid coil 125, and the lower skidding in Fig. 4 shows the fortune of intake valve 120
Dynamic, the specially valve member 121 motion between fully open position and fully closed position.
When removable plunger 130 moves towards upper dead center position TDC from lower dead point position BDC,
It is applied to solenoid 125 with to solenoid 125 by height being controlled current impulse during time period △ T0
It is energized and closes intake valve 120 and make intake valve 120 close.Then, it is positioned at completely when intake valve 120
During closed position, apply to control electric current to keep intake valve 120 to close during first time period △ T1.
Afterwards, being cut off owing to the reason of energy expenditure controls electric current, wherein intake valve 120 passes through discharge chambe
Pressure in 110 increases the hydraulic coupling produced and remains turned-off.When removable plunger 130 arrives top dead-centre
During position, intake valve 120 by spring (Fig. 2 spring 123 or Fig. 3 in spring 123a) bias
Power and the low-pressure fuel generation may flowed in discharge chambe 110 by the intake valve 120 through opening
Hydraulic coupling and open.When intake valve 120 arrives fully open position, produce big impact noise.
Fig. 5 schematically illustrates the solenoid-actuated of the Equations of The Second Kind operation according to high-pressure fuel supply pump
The control of intake valve.Upper skidding in Fig. 5 shows at lower dead point position BDC and upper dead center position
The plunger motion of reciprocating removable plunger 130 between TDC.Center row in Fig. 5 shows to be executed
It is added to the control electric current of solenoid coil 125, and the lower skidding in Fig. 5 shows the fortune of intake valve 120
Dynamic, the specifically valve member 121 motion between fully open position and fully closed position.
When removable plunger 130 moves towards upper dead center position TDC from lower dead point position BDC,
During first time period △ T1, first pass through applying less than (△ T0 can also be set at time period △ T0
That determines into than shown in Fig. 5 is late；Then, low-pressure fuel (can be entered by two valves in the beginning charging stage
Air valve 120 and auxiliary valve 150) be transported to discharge chambe 150) period apply inceptive impulse be used for make
The control electric current that intake valve 120 cuts out, so that intake valve 120 remains turned-off.Afterwards, cutting-off controlling
Electric current, and pass through the biasing force of spring (spring 123 in Fig. 1) and may pass through by from discharge chambe
The hydraulic coupling of the 110 fuel generations flowed out by the intake valve 120 opened makes intake valve 120 open.
When intake valve 120 arrives fully open position, produce large impact noise.
Fig. 6 schematically illustrates the solenoid-actuated intake valve according to the first embodiment of the present invention
Control.Upper skidding in Fig. 6 shows between lower dead point position BDC and upper dead center position TDC past
The plunger motion of the removable plunger 130 of multiple motion.Center row in Fig. 6 shows and is applied to solenoid
The control electric current of coil 125, and the lower skidding in Fig. 6 shows the motion of intake valve 120, is specially
The valve member 121 motion between fully open position and fully closed position.
Basic control principle in Fig. 6 is similar to reference to the control principle described in Fig. 4, but, according to this
The first embodiment of invention, has arrived at upper dead center position TDC court again at removable plunger 130
After lower dead point position BDC moves, during the second time period △ T2, control electric current and again executed
It is added to solenoid 125.The 3rd time period between first time period △ T1 and the second time period △ T2
During △ T3, do not apply to control electric current.Specifically, during the second time period △ T2, by inciting somebody to action
Control electric current and increase to maximum deceleration pulse current controlling value the most quickly to come to solenoid 125 energising
Deceleration current impulse is applied to solenoid 125, and wherein said maximum deceleration pulse current controlling value can
And have substantially with during first time period △ T1 apply control identical or different the shaking of electric current
Width (as shown in Figure 6).Control electric current its gradually decrease to zero (particularly substantial linear is reduced to zero) it
Front short time period is kept substantially and is in maximum deceleration pulse current controlling value.Therefore, it can entering
The motion of opening of air valve is slowed down, and owing to being gradually reduced control current value, therefore intake valve 120
Smoothly arrive fully open position, and do not produce obvious impact noise.
Fig. 7 schematically illustrates solenoid-actuated intake valve according to the second embodiment of the present invention
Control.Upper skidding in Fig. 7 shows between lower dead point position BDC and upper dead center position TDC past
The plunger motion of the removable plunger 130 of multiple motion.Center row in Fig. 7 shows and is applied to solenoid
The control electric current of coil 125, and the lower skidding in Fig. 7 shows intake valve 120, particularly valve member
121 motions between fully open position and fully closed position.
Basic control principle in Fig. 7 is similar to reference to the control principle described in Fig. 4, but, according to this
Second embodiment of invention, has arrived at upper dead center position TDC court again at removable plunger 130
After lower dead point position BDC moves, during the second time period △ T2, control electric current and again executed
It is added to solenoid 125.Specifically, during the second time period △ T2, increase by electric current will be controlled
To maximum deceleration pulse current controlling value be energized deceleration electric current arteries and veins the most quickly to solenoid 125
Punching is applied to solenoid 125, and wherein said maximum deceleration pulse current controlling value can have substantially
The amplitude (as shown in Figure 7) identical or different with the control electric current applied during first time period △ T1.
Control electric current and be then progressively decrease to zero (particularly substantial linear is reduced to zero).Therefore, it can entering
The motion of opening of air valve is slowed down, and owing to being gradually reduced control current value, therefore intake valve 120
Smoothly arrive fully open position, and do not produce obvious impact noise.
Fig. 8 schematically illustrates solenoid-actuated intake valve according to the third embodiment of the invention
Control.Upper skidding in Fig. 8 shows between lower dead point position BDC and upper dead center position TDC past
The plunger motion of the removable plunger 130 of multiple motion.Center row in Fig. 8 shows and is applied to solenoid
The control electric current of coil 125, and the lower skidding in Fig. 8 shows intake valve 120, specially valve member
121 motions between fully open position and fully closed position.
Basic control principle in Fig. 8 is similar to reference to the control principle described in Fig. 4, but, according to this
3rd embodiment of invention, has arrived at upper dead center position TDC court again at removable plunger 130
After lower dead point position BDC moves, during the second time period △ T2, control electric current and again executed
It is added to solenoid 125.Specifically, during the second time period △ T2, increase by electric current will be controlled
To maximum deceleration pulse current controlling value be energized deceleration electric current arteries and veins the most quickly to solenoid 125
Punching is applied to solenoid 125, and wherein said maximum deceleration pulse current controlling value can have substantially
The amplitude (as shown in Figure 8) identical or different with the control electric current applied during first time period △ T1.
Control electric current and be then progressively decrease to zero.Therefore, it can that intake valve is opened motion slow down,
And owing to being gradually reduced control current value, therefore intake valve 120 smoothly arrives fully open position,
And do not produce obvious impact noise.
Fig. 9 schematically illustrates solenoid-actuated intake valve according to the fourth embodiment of the invention
Control.Upper skidding in Fig. 9 shows between lower dead point position BDC and upper dead center position TDC past
The plunger motion of the removable plunger 130 of multiple motion.Center row in Fig. 9 shows and is applied to solenoid
The control electric current of coil 125, and the lower skidding in Fig. 9 shows intake valve 120, specially valve member
121 motions between fully open position and fully closed position.
Basic control principle in Fig. 9 is similar to reference to the control principle described in Fig. 4, but, according to this
4th embodiment of invention, has arrived at upper dead center position TDC court again at removable plunger 130
After lower dead point position BDC moves, during the second time period △ T2, control electric current and again executed
It is added to solenoid 125.Specifically, during the second time period △ T2, increase by electric current will be controlled
To maximum deceleration pulse current controlling value be energized deceleration electric current arteries and veins the most quickly to solenoid 125
Punching is applied to solenoid 125, and wherein said maximum deceleration pulse current controlling value can have substantially
The amplitude (as shown in Figure 9) identical or different with the control electric current applied during first time period △ T1.
Control electric current was kept substantially in short time period before it gradually decreases to zero and is in maximum deceleration
Pulse current controlling value.Therefore, it can that intake valve is opened motion slow down, and due to by
The least control current value, therefore intake valve 120 smoothly arrives fully open position, and does not produce
Raw obvious impact noise.
Figure 10 schematically illustrates solenoid-actuated intake valve according to the fifth embodiment of the invention
Control.Upper skidding in Figure 10 shows between lower dead point position BDC and upper dead center position TDC
The plunger motion of reciprocating removable plunger 130.Center row in Figure 10 shows and is applied to spiral shell
The control electric current of spool coil 125, and the lower skidding in Figure 10 shows intake valve 120, specially valve
The component 121 motion between fully open position and fully closed position.
Basic control principle in Figure 10 is similar to reference to the control principle described in Fig. 6, but, according to
The fifth embodiment of the present invention, controls electric current continuous from first time period △ T1 with constant current value
It is applied to the second time period △ T2.During the second time period △ T2, control electric current and be gradually reduced at it
It is in maximum subtracts to being kept substantially in short time period before zero (particularly substantial linear is reduced to zero)
Speed pulse current controlling value.Therefore, it can that intake valve is opened motion slow down, and due to
Being gradually reduced control current value, therefore intake valve 120 smoothly arrives fully open position, and does not has
Produce obvious impact noise.
Figure 11 schematically illustrates solenoid-actuated intake valve according to the sixth embodiment of the invention
Control.Upper skidding in Figure 11 shows between lower dead point position BDC and upper dead center position TDC
The plunger motion of reciprocating removable plunger 130.Center row in Figure 11 shows and is applied to spiral shell
The control electric current of spool coil 125, and the lower skidding in Figure 11 shows intake valve 120, specially valve
The component 121 motion between fully open position and fully closed position.
Basic control principle in Figure 11 is similar to reference to the control principle described in Fig. 7, but, according to
The sixth embodiment of the present invention, controls electric current continuous from first time period △ T1 with constant current value
It is applied to the second time period △ T2.During the second time period △ T2, substantially from removable plunger 130
Arriving the time of top dead-centre, control electric current gradually decreases to zero, and (controlling electric current can also be from even existing
The time that removable plunger 130 reaches before or after top dead-centre starts to be gradually reduced), the most substantially
Linearly it is reduced to zero.Therefore, it can that intake valve is opened motion slow down, and due to gradually
Reducing and control current value, therefore intake valve 120 smoothly arrives fully open position, and does not produce
Significantly impact noise.
Figure 12 schematically illustrates solenoid-actuated intake valve according to the seventh embodiment of the invention
Control.Upper skidding in Figure 12 shows between lower dead point position BDC and upper dead center position TDC
The plunger motion of reciprocating removable plunger 130.Center row in Figure 12 shows and is applied to spiral shell
The control electric current of spool coil 125, and the lower skidding in Figure 12 shows intake valve 120, specially valve
The component 121 motion between fully open position and fully closed position.
Basic control principle in Figure 12 is similar to reference to the control principle described in Fig. 9, but, according to
The seventh embodiment of the present invention, controls electric current continuous from first time period △ T1 with constant current value
It is applied to the second time period △ T2.During the second time period △ T2, control electric current and be gradually reduced at it
It was kept substantially in short time period before zero and is in maximum deceleration pulse current controlling value.Therefore,
Intake valve can be opened motion to slow down, and owing to being gradually reduced control current value, therefore
Intake valve 120 smoothly arrives fully open position, and does not produce obvious impact noise.
Figure 13 schematically illustrates the solenoid-actuated intake valve according to the eighth embodiment of the present invention
Control.Upper skidding in Figure 13 shows between lower dead point position BDC and upper dead center position TDC
The plunger motion of reciprocating removable plunger 130.Center row in Figure 13 shows and is applied to spiral shell
The control electric current of spool coil 125, and the lower skidding in Figure 13 shows intake valve 120, specially valve
The component 121 motion between fully open position and fully closed position.
Basic control principle in Figure 13 is similar to reference to the control principle described in Fig. 8, but, according to
The eighth embodiment of the present invention, controls electric current continuous from first time period △ T1 with constant current value
It is applied to the second time period △ T2.During the second time period △ T2, substantially from removable plunger 130
Arriving the time of top dead-centre, control electric current gradually decreases to zero, and (controlling electric current can also be from even existing
The time that removable plunger 130 reaches before or after top dead-centre starts to be gradually reduced).Therefore, it can
Intake valve is opened motion slow down, and owing to being gradually reduced control current value, therefore air inlet
Valve 120 smoothly arrives fully open position, and does not produce obvious impact noise.
Figure 14 schematically illustrates the solenoid-actuated intake valve according to the ninth embodiment of the present invention
Control.Upper skidding in Figure 14 shows between lower dead point position BDC and upper dead center position TDC
The plunger motion of reciprocating removable plunger 130.Center row in Figure 14 shows and is applied to spiral shell
The control electric current of spool coil 125, and the lower skidding in Figure 14 shows intake valve 120, specially valve
The component 121 motion between fully open position and fully closed position.
Basic control principle in Figure 14 is similar to reference to the control principle described in Figure 10, but, according to
The ninth embodiment of the present invention, although control electric current when first time period △ T1 is continuously applied to second
Between section △ T2, but in order to reduce energy expenditure and avoid thermal overload, at first time period △ T1
Period controls electric current at the end of the conveying phase and is reduced to less current value.At the second time period △ T2
Period, controlling electric current increases again, then controls electric current and gradually decreases to zero (particularly substantial line at it
Property be reduced to zero) before be kept substantially in short time period and be in maximum deceleration pulse current controlling value.
Therefore, it can that intake valve is opened motion slow down, and owing to being gradually reduced control current value,
Therefore intake valve 120 smoothly arrives fully open position, and does not produce obvious impact noise.
Figure 15 schematically illustrates the solenoid-actuated intake valve according to the tenth embodiment of the present invention
Control.Upper skidding in Figure 15 shows between lower dead point position BDC and upper dead center position TDC
The plunger motion of reciprocating removable plunger 130.Center row in Figure 15 shows and is applied to spiral shell
The control electric current of spool coil 125, and the lower skidding in Figure 15 shows intake valve 120, specially valve
The component 121 motion between fully open position and fully closed position.
Basic control principle in Figure 15 is similar to reference to the control principle described in Fig. 6.In the very first time
During the 3rd time period △ T3 between section △ T1 and the second time period △ T2, do not apply to control electricity
Stream.Specifically, during the second time period △ T2, by control electric current is increased to maximum deceleration arteries and veins
Rush electric current controlling value the most quickly deceleration current impulse is applied to helical to solenoid 125 energising
Pipe 125, wherein said maximum deceleration pulse current controlling value can have substantially with in the very first time
Apply during section △ T1 controls the amplitude (as shown in figure 15) that electric current is identical or different.It is different from Fig. 6,
Deceleration pulse has been applied during the second time period △ T2, and on removable plunger 130 arrives
Control electric current before the TDC of dead point the most again to increase.Control electric current and gradually decrease to zero (particularly at it
Continuously and substantial linear is reduced to zero) before be kept substantially in short time period and be in maximum deceleration
Pulse current controlling value.Therefore, it can that intake valve is opened motion slow down, and due to by
The least control current value, therefore intake valve 120 smoothly arrives fully open position, and does not produce
Raw obvious impact noise.
Figure 16 A with 16B shows compared with being gradually reduced deceleration pulse with not according to the present invention
The effect of the present invention, wherein Figure 16 A and 16B schematically illustrates and operates second according to the first kind
Be not gradually reduced during time period control electric current solenoid-actuated intake valve control (Figure 16 A's
Cf) during the second time period, the solenoid-actuated intake valve of control electric current, is reduced according to first kind operation
Control and solenoid-actuated intake valve according to an embodiment of the invention control (Figure 16 B,
Be similar to Fig. 6) comparison.Although the embodiments of the invention shown in Figure 16 B can make intake valve 120
Smoothly arrival fully open position is without producing obvious impact noise, but if magnetic force becomes
More than biasing force, then the motion of opening of the intake valve 120 of Figure 16 A not only stops, and intake valve 120
Actually can again move up, unless deceleration pulse is by the most accurate and smart in the side closing intake valve
Really it is adjusted to the operation bar of the independent characteristic of such as engine speed and fuel temperature and intake valve
Part, wherein said operating condition can be from a high pressure fuel pump to another due to large-scale production deviation
Individual high-pressure fuel supply pump and change.So, when controlling failure of current, intake valve is opened rapidly also
Produce big impact noise, although deceleration pulse is intended to reduce impact noise.
Figure 17 A schematically illustrates linear decline PWM according to an embodiment of the invention control
System.The upper skidding of Figure 17 A show can put on solenoid-actuated intake valve solenoidal linearly
Decline PWM voltage signal, for controlling electric current during the second time period △ T2, make control
Electric current declines continuously.
The linear decline PWM voltage signal applied is at certain predetermined maximum duty cycle (such as, 85%,
90%, 95% or higher) place starts, and is continuously reduced the most in time less than predetermined maximum duty cycle
Predetermined minimum duty cycle (this minimum duty cycle can be even zero).The lower skidding of Figure 17 A is exemplarily
Showing the control electric current of generation, the control electric current of described generation is primarily due to PWM voltage signal and increases
Add, then due to the dutycycle of the PWM voltage signal declined continuously and be continuously reduced.
Figure 17 B schematically illustrates phase step type according to an embodiment of the invention and declines PWM
Control.The upper skidding of Figure 17 A shows the solenoidal rank that can put on solenoid-actuated intake valve
The formula that jumps declines PWM voltage signal, for controlling electric current during the second time period △ T2, makes
Control electric current to be gradually reduced.The phase step type applied declines PWM voltage signal in certain predetermined maximum
Dutycycle (such as, 85%, 90%, 95% or higher) place starts, the most in time from maximum duty cycle
Gradually decrease to less than the one or more middle dutycycle of predetermined maximum duty cycle and reach predetermined
Little dutycycle (this minimum duty cycle can be even zero).The lower skidding of Figure 17 B schematically illustrates product
Raw control electric current, the control electric current of described generation is primarily due to PWM voltage signal to be increased, then
The dutycycle of PWM voltage signal that declines due to phase step type and be gradually reduced.
In a word, the present invention allows to provide a kind of and is especially being less dependent on timing and the amplitude of deceleration pulse
Accurately regulation and efficiently controlling in the case of reducing noise while accurately calculating include normally opened
The method of the high-pressure fuel supply pump of the solenoid-actuated intake valve of type and control equipment.
Claims (14)
1., for the method controlling high-pressure fuel supply pump, described high-pressure fuel supply pump is by structure
Cause and pressurized fuel be fed to internal combustion engine,
Described high-pressure fuel supply pump (100) including: discharge chambe (110)；Solenoid-actuated intake valve
(120), described solenoid-actuated intake valve is for being transported to described discharge chambe by non-pressurized fuel
(110)；Removable plunger (130), described removable plunger in described discharge chambe (110) first
Move back and forth between plunger position (BTC) and the second plunger position (TDC), for described discharge chambe
(110) fuel in pressurizes；With dump valve (140), described dump valve for by pressurized fuel from
Described discharge chambe (110) is discharged to be supplied to described internal combustion engine,
Described solenoid-actuated intake valve (120) is configured to by biasing force court in a first direction
Biased to the first stop position of described intake valve, and be configured to overcome described bias by magnetic force
Power in second party opposite to the first direction upwardly toward the second stop position of described intake valve
Mobile, and it is maintained at described second stop position by magnetic force, and
Said method comprising the steps of:
In first time period (△ T0, △ T1) period, by magnetic force, control electric current is applied to institute
State solenoid-actuated intake valve (120), be used for making described intake valve move in this second direction
Described intake valve is also maintained at described second stop position by described second stop position；And
Period the second time period (△ T2) after described first time period (△ T0, △ T1),
Move in said first direction from described second stop position described solenoid-actuated intake valve (120)
Dynamic period, control electric current is applied to described solenoid-actuated intake valve (120),
It is characterized in that: control electric current is applied to described in period described second time period (△ T2)
Solenoid-actuated intake valve (120) including: described control electric current is gradually decreased to zero；
Wherein, arrive after removable plunger has arrived at the second plunger position or at removable plunger
During the second plunger position, control electric current and be applied to solenoid-actuated intake valve in the second time period.
Method the most according to claim 1, it is characterised in that:
Described solenoid-actuated intake valve (120) is configured for being closed by magnetic force and/or keeping
The solenoid-actuated intake valve of the open type (120) closed, wherein said first stop position is described spiral shell
Spool activates the fully open position of intake valve (120), and described first direction is described solenoid-actuated
The opening direction of intake valve (120), described second stop position is described solenoid-actuated intake valve
(120) fully closed position, and described second direction is described solenoid-actuated intake valve (120)
Closedown direction；Or
Described solenoid-actuated intake valve (120) is configured for being opened by magnetic force and/or keeping
The solenoid-actuated intake valve of the closed type (120) opened, wherein said first stop position is described spiral shell
Spool activates the fully closed position of intake valve (120), and described first direction is described solenoid-actuated
The closedown direction of intake valve (120), described second stop position is described solenoid-actuated intake valve
(120) fully open position, and described second direction is described solenoid-actuated intake valve (120)
Opening direction；
Control electric current during described first time period and the control electric current during described second time period
For the different current value across the moment corresponding with the top dead-centre of the second plunger position；And
The second maximum controlling electric current during described second time period is than the described first time period phase
Between control electric current the first maximum little.
Method the most according to claim 1, it is characterised in that:
By pwm voltage signal being applied to described solenoid-actuated intake valve (120), by
Control control electric current is applied to described solenoid-actuated intake valve (120) in pulse width modulation controlled；
And
It is gradually reduced control current value to include: phase step type ground reduces the pwm voltage signal applied
Dutycycle；Or
It is gradually reduced and controls current value and include: be continuously reduced the accounting for of pwm voltage signal of applying
Empty ratio.
4. according to the method described in any one of claim 1-3, wherein, described solenoid-actuated enter
Air valve (120) be configured for the open type that is closed by magnetic force or remains turned-off solenoid-actuated enter
Air valve (120), and
The operation of described high-pressure fuel supply pump (100) including:
Charging period, in described charging period, fuel is inhaled into described by described intake valve (120)
In discharge chambe (110), the most described removable plunger (130) is moved from described second plunger position (TDC)
Move described first plunger position (BDC), and described solenoid-actuated intake valve (120) is by bias
Power or open by biasing force and hydraulic coupling or stay open；
The spilling phase, interim in described spilling, fuel passes through described intake valve (120) from described discharge chambe
(110) overflowing, the most described removable plunger (130) moves to from described first plunger position (BDC)
Described second plunger position (TDC), and described solenoid-actuated intake valve (120) tried hard to keep by bias
Hold and open；With
The conveying phase, interim in described conveying, fuel is pressurized and pass through in described discharge chambe (110)
Described dump valve (140) is discharged to be supplied to described internal combustion engine, the most described removable plunger
(130) described second plunger position (TDC), and institute are moved to from described first plunger position (BDC)
State solenoid-actuated intake valve (120) to be remained turned-off by magnetic force,
Wherein said second time period, (△ T2) was included in described charging period.
5. according to the method described in any one of claim 1-3, wherein, described solenoid-actuated enter
Air valve (120) be configured for the open type that is closed by magnetic force or remains turned-off solenoid-actuated enter
Air valve (120)；And
The operation of described high-pressure fuel supply pump (100) including:
Charging period, in described charging period, fuel at described intake valve (120) in the described charging period phase
Between stay open in the case of be inhaled in described discharge chambe (110) by described intake valve (120),
Or fuel described intake valve (120) during described charging period by control electric current is applied to institute
State solenoid-actuated intake valve (120) and be inhaled into by auxiliary valve (150) in the case of remaining turned-off
In described discharge chambe (110), the most described removable plunger (130) is from described second plunger position
(TDC) described first plunger position (BDC) is moved to；
The conveying phase, interim in described conveying, fuel is pressurized and pass through in described discharge chambe (110)
Described dump valve (140) is discharged to be supplied to described internal combustion engine, the most described removable plunger
(130) described second plunger position (TDC), and institute are moved to from described first plunger position (BDC)
State solenoid-actuated intake valve (120) to be remained turned-off by magnetic force；And
The spilling phase, interim in described spilling, fuel passes through described intake valve (120) from described discharge chambe
(110) overflowing, the most described removable plunger (130) moves to from described first plunger position (BDC)
Described second plunger position (TDC), and described solenoid-actuated intake valve (120) by biasing force or
Open by biasing force and hydraulic coupling or stay open,
It is interim that wherein said second time period (△ T2) is included in described spilling.
6. according to the method described in any one of claim 1-3, it is characterised in that: control electric current and exist
Period described second time period (△ T2) is applied to described solenoid-actuated intake valve (120) so that
Before described intake valve (120) arrives the time of described first stop position, prevent described intake valve
(120) acceleration of movement in said first direction, or make to arrive at described intake valve (120)
Described intake valve (120) shifting in said first direction was made before the time of described first stop position
Dynamic deceleration；
During described second time period, described control electric current is applied to described solenoid-actuated air inlet
The period of valve, when described solenoid-actuated intake valve is closed type solenoid-actuated intake valve, described
Before solenoid-actuated intake valve arrives the first stop position, the current value that electric current rises to specify will be controlled
After gradually decrease.
7. according to the method described in any one of claim 1-3, it is characterised in that:
Apply to control electric current, at least up to described intake valve (120) in described second time period (△ T2)
Till arriving described first stop position.
8. according to the method described in any one of claim 1-3, it is characterised in that:
When described solenoid-actuated intake valve (120) is configured for being closed by magnetic force or keep to close
During open type solenoid-actuated intake valve (120) closed:
The second plunger is arrived described removable plunger (130) in described second time period (△ T2)
Apply before position (TDC) to control electric current；
The second plunger is arrived described removable plunger (130) in described second time period (△ T2)
The after-applied control electric current of position (TDC)；Or
Substantially the is arrived described removable plunger (130) in described second time period (△ T2)
The time of two plunger positions (TDC) applies to control electric current.
9. according to the method described in any one of claim 1-3, it is characterised in that:
Described first time period (△ T1) and described second time period (△ T2) are by not controlling electric current quilt
The 3rd time period being applied to described solenoid-actuated intake valve (120) is spaced apart.
Method the most according to claim 9, it is characterised in that:
When described solenoid-actuated intake valve (120) is configured for being closed by magnetic force or keep to close
During open type solenoid-actuated intake valve (120) closed, described 3rd time period includes described removable
Plunger (130) arrives the time of described second plunger position (TDC).
11. according to the method described in any one of claim 1-3, it is characterised in that:
Apply continuously from described first time period (△ T1) to described second time period (△ T2) to control electricity
Stream.
12. methods according to claim 11, wherein, described first time period (△ T1) and
Described second time period (△ T2) is applied to the of described solenoid-actuated intake valve by controlling electric current
Three time periods are spaced apart, and the control electric current applied during described 3rd time period is less than described the
Control electric current applied in one time period.
13. according to the method described in any one of claim 1-3, it is characterised in that:
By the pulse width modulation controlled of voltage signal applied or control to execute by closed loop current
It is added to the control electric current of described solenoid-actuated intake valve.
14. 1 kinds for controlling the control equipment of high-pressure fuel supply pump, described high-pressure fuel supply
Pump is configured to pressurized fuel is fed to internal combustion engine, it is characterised in that:
Described control equipment be suitable to according to as according to any one of claim 1-13 for controlling height
The method of pressurized fuel transfer pump controls to be applied to the control electric current of described solenoid-actuated intake valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10191097.4 | 2010-11-12 | ||
| EP10191097.4A EP2453122B1 (en) | 2010-11-12 | 2010-11-12 | Method and control apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102465765A CN102465765A (en) | 2012-05-23 |
| CN102465765B true CN102465765B (en) | 2016-12-14 |
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ID=
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1014218B (en) * | 1953-09-14 | 1957-08-22 | Licentia Gmbh | Arrangement for compounding alternating current or three-phase generators |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1014218B (en) * | 1953-09-14 | 1957-08-22 | Licentia Gmbh | Arrangement for compounding alternating current or three-phase generators |
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