CN103867309A - Method and device for operating an internal combustion engine with reduced air charge - Google Patents
Method and device for operating an internal combustion engine with reduced air charge Download PDFInfo
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- CN103867309A CN103867309A CN201310668434.4A CN201310668434A CN103867309A CN 103867309 A CN103867309 A CN 103867309A CN 201310668434 A CN201310668434 A CN 201310668434A CN 103867309 A CN103867309 A CN 103867309A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N99/00—Subject matter not provided for in other groups of this subclass
- F02N99/002—Starting combustion engines by ignition means
- F02N99/006—Providing a combustible mixture inside the cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0203—Variable control of intake and exhaust valves
- F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
- F02D13/0219—Variable control of intake and exhaust valves changing the valve timing only by shifting the phase, i.e. the opening periods of the valves are constant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/004—Aiding engine start by using decompression means or variable valve actuation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention relates to a method for combustion engine with a plurality of cylinders. The method involves igniting the fuel-air mixture in combustion chamber of one cylinder (2) of internal combustion engine (1) when the cylinder is in combustion stroke. The compression of air in another cylinder of engine is performed when another cylinder is in compression stroke. An intake valve (3) and an exhaust valve (4) of cylinder in the compression stroke are actuated such that the valves are opened during a time period from the beginning of the compression stroke.
Description
Technical field
The present invention relates to combustion engine, relate in particular to for reducing the not measure of the trailing moment of the cylinder in combustion stroke.
Background technique
Conventionally so move multi-cylinder combustion engine, mutually stagger and be provided with the working stroke of each cylinder.That is to say, a cylinder in described cylinder is in combustion stroke and during part moment is provided, corresponding another cylinder in described cylinder, in compression stroke, compresses the air being inhaled in the firing chamber of corresponding cylinder in described compression stroke.In described compression stroke, relevant cylinder does work for the air in firing chamber is compressed and causes thus the moment contrary with the part moment of the cylinder in combustion stroke of described combustion engine.
In order to start conventional combustion engine at present, typically for example, by outside moment source, rotatablely moving by means of starting motor guiding bent axle.Simultaneously along with the starting of described bent axle starts to inject fuel in described cylinder.Correspondingly needing to be ejected into the fuel quantity in the cylinder in combustion stroke (working stroke) as the next one is obtained by the desired γ value of the fuel/air mixture ratio of the firing chamber for described cylinder according to the aeration quantity of the existence in relevant cylinder.
Described aeration quantity is obtained by the lifting curve (Erhebungskurve) of described intake valve and exhaust valve and or rather according to the position of the bent axle of described combustion engine, namely obtain according to crank shaft angle.Before the mode of just pulling in the moment source by by means of outside is started described combustion engine, described intake valve and exhaust valve are in corresponding position, and a cylinder or multiple cylinder in the cylinder in corresponding position in compression stroke had surrounded aeration quantity before described towing process starts.Thus, one or more cylinder in described relevant cylinder causes compression moment, and described compression moment requires higher starter motor moment.
Summary of the invention
According to the present invention, be provided with a kind of by claimed in claim 1, for the method for the aeration quantity operation combustion engine to reduce and by device, engine system and computer program described in independent claims arranged side by side.
Other favourable design proposal of the present invention is described in the dependent claims.
According to first aspect, be provided with a kind of for moving the method for the combustion engine with multiple cylinders, a cylinder in wherein said cylinder is in combustion stroke, in described combustion stroke, light the fuel/air mixture in the firing chamber of described the first cylinder, another cylinder in described cylinder is in compression stroke during this time, in described compression stroke, the air in described another cylinder is compressed, wherein so manipulate intake valve and/or the exhaust valve of described cylinder in compression stroke, make to open in its one period of endurance in the time that described compression stroke starts.
On the conception principle of said method, be, especially reduce the aeration quantity in cylinder by intake valve described in late release after suction stroke, with the compression moment being especially reduced in compression stroke.This for example, in definite operation phase of combustion engine, be conducive to reduce in when starting the moment that reacts on driving moment.Especially open the feasible program of moment and valve close moment and can not select by demand, especially can not reduce for needing the aeration quantity of the first cylinder of igniting owing to conventionally lacking the valve of impact described intake valve and exhaust valve during engine start.
By surrounded air quantity, obtain compressing moment by acting on the compression pressure of the piston in cylinder, described compression moment must be provided by outside moment source as minimum moment.This has prevented, in general makes every effort to reduce outside moment essential for the starting of described combustion engine.The scheme of the reduction compression moment proposing for example has advantages of such for hybrid drive system, can be by the obviously higher share of the operational moment that can be provided by motor for described electronic running process in the time that electricity consumption is travelled, because owing to having compression moment to be overcome and can be reduced to the possible starting of described combustion engine and the deposit moment that temporarily provides compared with low.
In addition,, when when starting the starter motor moment that described combustion engine only needed to reduce, can design the starting motor with smaller power.
In addition, also can realize the starting without starter motor of described combustion engine by reducing described compression moment, because the igniting first in a cylinder in described cylinder just can provide enough part moment, overcoming the compression moment of another cylinder, in described another cylinder, the air quantity having reduced is before this compressed.
Especially can specify, the intake valve of described cylinder in compression stroke and/or the exhaust valve endurance in open mode is determined according to the stop position of described cylinder in combustion stroke.The stop position of described cylinder in combustion stroke has been determined the air quantity being present in wherein, thereby can determine the part moment that can realize while burning in relevant cylinder.In order to compress the cylinder in combustion stroke between main combustion period and to drive the cylinder in compression stroke and make its piston correspondingly move to upper dead center always, the endurance of opening the valve of described relevant cylinder must correspondingly can regulate.In this way, can regulate the described endurance to be adapted to the air quantity of described cylinder in combustion stroke.
Have best stop position, the piston in described cylinder in combustion stroke should reach the stop position of described the best in closing process before this.Due to used stopping method, may occur, accurately do not reach described stop position or exceed described stop position.The part moment producing while burning in described cylinder is all less than the part moment that can realize in best stop position in both of these case.Must specify for this reason, extend the relevant intake valve of described cylinder in compression stroke or the endurance that exhaust valve stays open at this, to reduce the mechanical energy needing for the air in relevant cylinder is compressed.Also can in stopped process before this, accurately not arrive in this way the starting without starter motor that realizes described combustion engine in the situation of described stop position.
In service sliding of the Motor Vehicle with combustion engine operation, can in the situation that declutching, inertia outage cut off combustion engine.If slide operation described in leaving and want demanded drive torque, that just can be by closed clutch by the kinetic energy of Motor Vehicle for starting described combustion engine.Reduce necessary starter motor moment and even in the time that speed is lower, also can realize such clutch start in comfortable mode, wherein in the time engaging by driver, can reduce the degree of ballistic kick (Ruckeln).
In addition, the described endurance can be so set, and the part moment that makes to provide by the cylinder in combustion stroke is enough to be used in compressing closing the air quantity that described intake valve stays in described cylinder in compression stroke after exhaust valve in other words.
In one embodiment, described intake valve in other words exhaust valve can manipulate according to lifting curve according to the crank shaft angle of the bent axle of described combustion engine, wherein said lifting curve can move about described crank shaft angle, the manipulation of wherein so opening intake valve by the lifting curve of mobile described intake valve in the endurance in the time that described compression stroke starts, makes the close moment of described intake valve be equivalent to the end of described endurance.
Can specify, so manipulate correspondingly intake valve and/or the exhaust valve of the cylinder in compression stroke in order to start described combustion engine, make to open in its endurance in the time that described compression stroke starts, the wherein said endurance is correspondingly depended on by the part moment that meanwhile cylinder in combustion stroke causes.
The described endurance can be determined the air quantity in the cylinder in compression stroke, and wherein said air quantity causes compression moment, and described compression moment is less than the part moment causing by the cylinder in combustion stroke.
Can specify, the described endurance regulates according to the actual stop position of the piston in the cylinder in combustion stroke before the described combustion engine of starting.
According to a further aspect, be provided with the device for moving the combustion engine with multiple cylinders, especially control unit, a cylinder in wherein said cylinder is in combustion stroke, in described combustion stroke, light the fuel/air mixture in the firing chamber of relevant cylinder, another cylinder in described cylinder is in compression stroke during this time, in described compression stroke, the air in relevant cylinder is compressed, wherein said device is configured to so intake valve and/or the exhaust valve of the described cylinder in compression stroke of manipulation, make to open in its one period of endurance in the time that described compression stroke starts.
According to a further aspect, be provided with engine system, described engine system comprises:
-combustion engine, has cylinder, and described cylinder has respectively at least one intake valve (3) and at least one exhaust valve;
-inlet camshaft, for manipulating described intake valve;
-intake valve phase regulator, for regulating the phase place of the lifting curve of described intake valve about crank shaft angle;
-exhaust camshaft, for handling described exhaust valve;
-exhaust valve phase regulator, for regulating the phase place of the lifting curve of described exhaust valve about crank shaft angle; And
-said apparatus.
In addition, described engine system can comprise the control device described intake valve phase regulator and described exhaust valve phase regulator being regulated for independently.
Described control device can comprise oil hydraulic pump, to be provided for regulating the hydraulic pressure of the intake valve phase regulator moving in the mode of hydraulic pressure and/or the exhaust valve phase regulator moving in the mode of hydraulic pressure.
According to a further aspect, be provided with the computer program with program code segments, implement the institute of said method for carry out described computer program on computer or said apparatus time in steps.
Brief description of the drawings
Preferred embodiment be explained in detail of the present invention by means of accompanying drawing below.Accompanying drawing illustrates as follows:
Fig. 1 is the schematic diagram with the combustion engine of multiple cylinders; And
Fig. 2 is the flow chart of the method for the combustion engine for starting Fig. 1 is described.
Embodiment
Fig. 1 shows the schematic diagram of the combustion engine 1 with multiple (being four in shown embodiment) cylinder 2.Next described combustion engine 1 is to inject fuel directly into petrol engine in the firing chamber of described cylinder 2, four-stroke operation.
Described cylinder 2 is respectively equipped with an intake valve 3 and an exhaust valve 4, and described intake valve and exhaust valve manipulate by corresponding suitable inlet camshaft 5 and exhaust camshaft 6 respectively.But described cylinder 2 also can be provided with more than one intake valve 3 and more than one exhaust valve 4.Described inlet camshaft 5 and described exhaust camshaft 6 are coupled with bent axle 7.
Not only can intake valve phase regulator 8 be set for described inlet camshaft 5, and can exhaust valve phase regulator 9 be set for described exhaust camshaft 6, for the crank shaft angle about described bent axle 7, the lifting curve of each intake valve and exhaust valve 3,4 is being regulated aspect its phase place.Described intake valve phase regulator 8 and described exhaust valve phase regulator 9 regulate in the mode of hydraulic pressure conventionally, but also can regulate by means of other mechanism.
Described intake valve 3 is connected with the suction tude section 10 of air supply system 11, and described exhaust valve 4 is connected with the exhaust section 12 of vent systems 13.
The piston that the cylinder 2 of described combustion engine 1 has firing chamber and arranges actively therein.Described cylinder 2 generally moves in the mode of phase shifting, thereby conventionally correspondingly makes a cylinder in described cylinder 2 another cylinder in combustion stroke and in described cylinder 2 in compression stroke.
Described intake valve phase regulator and exhaust valve phase regulator 8,9 can not regulate conventionally in the halted state of described combustion engine 1 because for example do not exist for this reason required, for the oil pressure of hydraulic regulation.When the lifting curve of described intake valve and exhaust valve 3,4 is initial, so locate, the lower dead centre of the piston movement in described cylinder in other words top dead center open and close.
Therefore, especially in the time of starting, there is the starter motor moment of raising, because must apply the compression moment for the air in described cylinder 2 under external pressure.In addition because exist equally external pressure in the suction stroke of described air supply system 11, so the air quantity in the firing chamber that is inhaled in advance relevant cylinder 2 in the suction stroke of compression stroke is higher.Require corresponding high compression moment for the compression of this air quantity, during the described combustion engine 1 of starting, must overcome described corresponding high compression moment.
In order to reduce described compression moment, regulation now, in the time that compression stroke starts, the intake valve 3 of described relevant cylinder 2 and/or exhaust valve 4 are stayed open, thereby intake valve 3 and/or exhaust valve 4 in the cylinder 2 in compression stroke are stayed open within the definite endurance from described compression stroke starts.The variation from the lower dead centre of described piston corresponding to crank shaft angle of described definite endurance, the lower dead centre of described piston shows the beginning of described compression stroke.The corresponding variation of described crank shaft angle is carried out for definite rotating speed within the definite endurance from compression stroke starts.Because described intake valve 3 and/or exhaust valve 4 stay open, the motion by the piston in described cylinder 2 again by a part for the air quantity sucking in suction stroke before this by described intake valve 3 in other words described exhaust valve 4 from the firing chamber of described relevant cylinder 2, discharge.
Described relevant intake valve 3 in other words the moment of closing of exhaust valve 4 (reaching relevant crank shaft angle after lower dead centre) determined the air quantity in described cylinder 2 in this moment, in the next process of the compression process of described compression stroke, described air quantity is compressed.Close lateer at intake valve 3 described in the process of described compression stroke, in described relevant cylinder 2, have air quantity to be compressed with regard to less and just less for compressing needed compression moment.In this way, can by during compression stroke, determine described intake valve 3 in other words the close moment of exhaust valve 4 accurately regulate the aeration quantity of relevant cylinder 2 and accurately regulate and have compression moment to be applied thus.
Especially the lower dead centre that advantageously, make described intake valve 3 exceed the end of described suction stroke, namely to exceed the piston movement in relevant cylinder 2 stays open and lingeringly closes.This can realize by delay mobile (the Sp tverschiebung) of the lifting curve of described intake valve 3.Because either way will reduce the air quantity in relevant cylinder 2, so postpone and open described intake valve 3 and there is no impact during suction stroke thus.
While starting without starter motor in the situation that, the mobile maintenance of delaying of the lifting curve of described intake valve, does not act on, because conventionally arrive the moment of suction stroke at initial cylinder in compression stroke, substantially stop engine start process and can carry out corresponding phase adjusted to the moment of IC Intake Valve Closes towards the direction of close moment more early with combustion stroke, wherein in described combustion stroke, in the cylinder in compression stroke, be provided with reduced, have an air quantity to be compressed.Especially described combustion engine has enough kinetic energy after two to three combustion strokes, can the air quantity of the moment of the lower dead centre at described piston in cylinder being compressed completely during described compression stroke.The close moment of described intake valve delay mobile no longer include necessity and can make can reset until the next suction stroke of relevant cylinder to the corresponding phase adjusted of described intake valve phase regulator.
For traditional combustion engine 1, manipulate described intake valve phase regulator 8 in the mode of hydraulic pressure, wherein in the starting process of described combustion engine 1, be not provided for preparing the oil pressure of hydraulic control.Therefore can specify, be provided with extra oil pump 15 in order to realize the reduction of compression moment, this oil pump provides in order to manipulate the needed oil pressure of described intake valve phase regulator 8.If be ready to essential oil pressure, that just can so regulate described intake valve phase regulator 8, thereby postpones the lifting curve of described intake valve 3, so that the close moment of described intake valve 3 is obviously after the lower dead centre of the piston movement in relevant cylinder 2.The close moment of especially described intake valve 3 can be in compression stroke after the lower dead centre in piston movement 20 ° locate to 150 °.
The reduction of the compression moment in described cylinder 2 can be used in starts described combustion engine 1 without starter motor in the situation that.Flow chart below in conjunction with Fig. 2 is explained in detail the process of the starting without in starter motor situation.
In the time that bent axle 7 is static, in step S1, inject fuel in the first cylinder 2, this first cylinder is in its combustion stroke.Essential fuel quantity can be determined according to the crank shaft angle of described bent axle 7 for this reason, produces the accurate air quantity in relevant cylinder 2 by described crank shaft angle.If without starter motor start described combustion engine, that just obtains stop position in advance by means of suitable method, in described stop position, can realize the best part moment by the burning in the cylinder in combustion stroke.After the upper dead center of the stop position of this best piston movement in described cylinder for four cylinder engine, locate for about 90 °.If do not reach best stop position, will cause so, the part moment providing by the burning in the cylinder in combustion stroke reduces and must reduce thus the air quantity in the cylinder in compression stroke, and this can realize by delaying of the close moment of described intake valve is mobile.
After lighting by means of the ignition mechanism of described cylinder 2 fuel/air mixture being provided by the air quantity of the cylinder in combustion stroke, provide part moment, among described part moment is placed in described bent axle to rotatablely move.
The compression moment of the second cylinder 2 reacts on described part moment, wherein said the second cylinder 2 meanwhile in compression stroke and in this second cylinder by rotatablely moving to compressing in aeration quantity wherein.The kinetic energy being produced by the burning in described the first cylinder 2 can provide the maximum compression moment being restricted.The compression moment of described maximum is corresponding to the maximum aeration quantity in described the second cylinder 2.Therefore must ensure the maximum air quantity that still can compress by the kinetic energy being caused by the burning in described the first cylinder 2 described in the air quantity in described the second cylinder 2 is less than.Air quantity in described the second cylinder 2 can correspondingly reduce by the adjusting of closing angle of the intake valve 3 for described the second cylinder 2.
If the piston arrives upper dead center in described the second cylinder 2, is just farthest compressed in air wherein so.The combustion stroke in described the first cylinder 2 of being simultaneously through with and no longer provide part moment by described the first cylinder.
In step S2, carry out fuel injection according to compressed air quantity in described the second cylinder 2.Fuel/air mixture in described the second cylinder 2 is lighted and generating portion moment, and described part moment causes definite kinetic energy of motor motion at the lower dead centre place of the piston of described the second cylinder 2.
The kinetic energy being produced by the burning in described the second cylinder 2 can provide the maximum compression moment being restricted.The compression moment of described maximum is corresponding to the maximum aeration quantity in described the 3rd cylinder 2.Therefore equally must ensure the maximum air quantity that still can compress by the kinetic energy being caused by the burning in described the second cylinder 2 described in the air quantity in described the 3rd cylinder 2 is less than before so.Air quantity in described the 3rd cylinder 2 can correspondingly reduce by the adjusting of closing angle of the intake valve 3 to described the 3rd cylinder 2.
The size of the kinetic energy that the air quantity that described maximum can be compressed produces by the burning by above obtains, and has determined thus and in the compression stroke of described the 3rd cylinder 2, has had air quantity to be compressed.Therefore the air quantity that, the close moment of described intake valve 3 can be compressed by the maximum in the compression stroke of described the 3rd cylinder 2 obtains.
In step S3, check, whether the kinetic energy obtaining by the cylinder 2 in combustion stroke is enough to be used in compressing the maximum aeration quantity of the cylinder 2 in compression stroke meanwhile.(alternative: be) if this is the case, that just continues to carry out described method with step S4.Otherwise (alternative: no), that just utilizes the cylinder 2 repeating step S2 in combustion stroke now.
If determined in step S4, in the time that compression stroke starts, no longer need to postpone and close described intake valve 3 to reduce air quantity, that just can specify, as as described in regulate combustion engine 1 traditional in service as described in the phase place of lifting curve of intake valve 3, that is to say described intake valve 3 is closed in the time that suction stroke finishes.This for example can be by regulating and realizing described inlet camshaft 5 ahead of time.Stop thus the starting of described combustion engine 1.
Can specify, in the time of engine start to have the first cylinder to be compressed with for example close moment Demand-Oriented of 120 ° to 150 ° after lower dead centre (bedarfsorientiert) reduce aeration quantity, to having the second cylinder to be compressed with more early, after lower dead centre, for example reduce aeration quantity the close moment Demand-Oriented of 90 ° to 120 °, to having the 3rd cylinder to be compressed for example to reduce aeration quantity after lower dead centre the close moment Demand-Oriented of 60 ° to 90 °, and to having four-cylinder to be compressed for example to reduce aeration quantity after lower dead centre the close moment Demand-Oriented of 30 ° to 60 °.
As an alternative, in compression stroke, also can realize by described exhaust valve 4 reduction of air quantity.The exhaust valve 4 of closing can be opened and closed extraly in the compression stroke of described cylinder 2 at this in suction stroke, can regulate needed aeration quantity.
For the intake valve close moment of the postponement of exhaust valve in other words for also ensure to be used for the cylinder in compression stroke without the starting of starter motor, correspondingly be provided with described air inlet and exhaust valve phase regulator 8,9, with for example by provide the mode of inflation pressure to carry out just can having realized between main combustion period first the close moment of the postponement of relevant valve 3,4 in the cylinder in combustion stroke by means of electric pump or similar device.
Adjusting for opening and closing moment of described intake valve and exhaust valve 3,4 for example also can be undertaken by the extra device on described intake valve and exhaust valve 3,4.Described adjusting can or realize by the cam profile mechanically obtaining in advance in mode electronic, electric liquid.
Claims (13)
1. there is the method for the combustion engine (1) of multiple cylinders (2) for operation, a cylinder in wherein said cylinder (2) is in combustion stroke, in described combustion stroke, light the fuel/air mixture in the firing chamber of described the first cylinder (2), another cylinder in described cylinder (2) is in compression stroke during this time, in described compression stroke, the air in described another cylinder (2) is compressed, wherein so manipulate intake valve (3) and/or the exhaust valve (4) of described cylinder (2) in compression stroke, it is opened within the endurance from described compression stroke starts.
2. by method claimed in claim 1, the described endurance is wherein so set, and the part moment that makes to provide by described cylinder (2) in combustion stroke is enough to be used in compressing closing the air quantity that described intake valve (3) or exhaust valve (4) stay in described cylinder (2) in compression stroke afterwards.
3. by the method described in claim 1 or 2, wherein said intake valve (3) or described exhaust valve (4) can manipulate according to lifting curve according to the crank shaft angle of the bent axle of described combustion engine (1) (7), wherein said lifting curve can move about described crank shaft angle, the manipulation of wherein so implementing to be used for opening described intake valve (3) in the endurance in the time that described compression stroke starts by the lifting curve of mobile described intake valve (3), makes the close moment of described intake valve (3) be equivalent to the end of described endurance.
4. by the method described in any one in claim 1 to 3, wherein in order to start so correspondingly intake valve (3) and/or exhaust valve (4) of the cylinder in compression stroke (2) of manipulation of described combustion engine (1), make to open in its endurance in the time that described compression stroke starts, the wherein said endurance is correspondingly depended on the part moment causing by the described meanwhile cylinder in combustion stroke (2).
5. by method claimed in claim 4, the wherein said endurance is determined the air quantity in described cylinder (2) in compression stroke, wherein said air quantity causes compression moment, and described compression moment is less than the part moment causing by described cylinder (2) in combustion stroke.
6. by the method described in any one in claim 4 to 5, the wherein said endurance according to the described combustion engine of starting (1) before the actual stop position of the piston of the cylinder in combustion stroke (2) regulate.
7. there is device, the control unit especially of the combustion engine (1) of multiple cylinders (2) for operation, a cylinder in wherein said cylinder (2) is in combustion stroke, in described combustion stroke, light the fuel/air mixture in the firing chamber of associated cylinder (2), another cylinder in described cylinder (2) is in compression stroke during this time, in described compression stroke, the air in described associated cylinder (2) is compressed
Wherein said device is configured to so intake valve (3) and/or the exhaust valve (4) of the described cylinder (2) in compression stroke of manipulation, makes to open in its endurance in the time that described compression stroke starts.
8. engine system, comprising:
-combustion engine (1), has cylinder (2), and described cylinder has respectively at least one intake valve (3) and at least one exhaust valve (4);
-inlet camshaft (5), for manipulating described intake valve (3);
-intake valve phase regulator (8), for regulating the phase place of lifting curve of described intake valve (3) about crank shaft angle;
-exhaust camshaft (6), for handling described exhaust valve (4);
-exhaust valve phase regulator (9), for regulating the phase place of lifting curve of described exhaust valve (4) about crank shaft angle; And
-by device claimed in claim 6.
9. by engine system claimed in claim 8, have control device (15), described control device is for independently regulating described intake valve phase regulator (8) and described exhaust valve phase regulator (9).
10. by engine system claimed in claim 9, wherein said control device (15) comprises oil hydraulic pump, to be provided for regulating the hydraulic pressure of the intake valve phase regulator (8) moving in the mode of hydraulic pressure and/or the exhaust valve phase regulator (9) moving in the mode of hydraulic pressure.
11. computer programs, described computer program is provided for implementing by the institute of the method described in any one in claim 1 to 7 in steps.
12. electronic storage mediums have been preserved by the computer program described in claim 11 on described electronic storage medium.
13. electronic controllers, described electronic controller has by the electronic storage medium described in claim 12.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012222942.6 | 2012-12-12 | ||
| DE102012222942 | 2012-12-12 | ||
| DE201310217724 DE102013217724A1 (en) | 2012-12-12 | 2013-09-05 | Method for operating internal combustion engine in vehicle, involves actuating intake and exhaust valves of cylinder in compression stroke such that valves are opened during time period from beginning of compression stroke |
| DE102013217724.0 | 2013-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103867309A true CN103867309A (en) | 2014-06-18 |
| CN103867309B CN103867309B (en) | 2018-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310668434.4A Active CN103867309B (en) | 2012-12-12 | 2013-12-11 | Method and apparatus for running combustion engine with the aeration quantity of reduction |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102059029B1 (en) |
| CN (1) | CN103867309B (en) |
| DE (1) | DE102013217724A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894931A (en) * | 2015-12-17 | 2017-06-27 | 罗伯特·博世有限公司 | Method for resetting the multi-cylinder combustion motors with intake manifold injection mechanism in the case of the torque not conveyed from outside |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015225446A1 (en) | 2015-12-16 | 2017-06-22 | Robert Bosch Gmbh | Method for starting a combustion engine without starting |
| DE102017204008A1 (en) | 2016-03-17 | 2017-09-21 | Ford Global Technologies, Llc | Operating method for a motor vehicle and motor vehicle |
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- 2013-12-09 KR KR1020130152233A patent/KR102059029B1/en active IP Right Grant
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| JP2004100616A (en) * | 2002-09-11 | 2004-04-02 | Toyota Motor Corp | Starting control device for internal combustion engine |
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| CN106894931B (en) * | 2015-12-17 | 2020-08-11 | 罗伯特·博世有限公司 | Method for restarting a multi-cylinder combustion motor having an intake pipe injection mechanism without externally supplied torque |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103867309B (en) | 2018-11-09 |
| KR20140076499A (en) | 2014-06-20 |
| DE102013217724A1 (en) | 2014-06-12 |
| KR102059029B1 (en) | 2019-12-24 |
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