CN102434303B - For the method and apparatus controlling internal combustion engine - Google Patents
For the method and apparatus controlling internal combustion engine Download PDFInfo
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- CN102434303B CN102434303B CN201110293835.7A CN201110293835A CN102434303B CN 102434303 B CN102434303 B CN 102434303B CN 201110293835 A CN201110293835 A CN 201110293835A CN 102434303 B CN102434303 B CN 102434303B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 title claims description 88
- 239000000446 fuel Substances 0.000 claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 32
- 238000007906 compression Methods 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 20
- -1 wherein Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 description 22
- 239000007924 injection Substances 0.000 description 22
- 230000001914 calming effect Effects 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 230000000740 bleeding effect Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Abstract
The present invention relates to a kind of for starting the method being in the multi-cylinder engine among coasting, wherein fuel/air mixture lighted respectively by the acting cylinder in the compression cylinder in being in compression stroke and in being in expansion stroke.
Description
Technical field
The present invention relates to the method and apparatus for controlling internal combustion engine.
Background technology
For start-stop system, the situation being referred to as " unthinking " refers to, in these situations in the stopped process of internal combustion engine, driver such as triggers starting hope by manipulation accelerator pedal.These situations that " unthink " represent the situation of key for driving comfort, because while internal combustion engine still rotates but must be rapidly carried out resetting of internal combustion engine.
More generally known systems, attempt when the stopping process of IC engine again to internal-combustion engine ignition for these systems.Restart the course of injection of cut-out in the coasting of internal combustion engine in this case and to internal-combustion engine ignition.Control equipment Inspection to go out to be currently at the cylinder in compression stroke.Inject fuel in this cylinder and light.
If the most current engine speed is the lowest, then be probably in current ignition process produced torque and be not enough to for again making internal combustion engine accelerate, say, that internal combustion engine can stop and such as must carry out auxiliary starter by means of starter.This to take some time, thus allow driver feel and have interference.
Summary of the invention
The reliability reset that improve internal combustion engine is it is an advantage of the invention that relative to this.Therefore expand the range of speeds, in this range of speeds again can successfully starting inertia operating internal combustion engine.
Course of injection has been cut off, say, that the most there is not the fuel-air mixture that can light when combustion intensity slowly weakens.Direct-injection internal combustion engine can be able to constantly of unrestricted choice spray.The most especially need not spray in the case of Tong Bu with crank.Because internal combustion engine is also in operating, the intake valve being coupled by camshaft and air bleeding valve change the inflation in cylinder, say, that cylinder is filled with fresh air all the time.Therefore can carry out spraying and produce the fuel-air mixture that can light in the arbitrary cylinder of internal combustion engine when detecting start request, such that it is able to light a fire in these cylinders.
By the present invention, except lighting fuel/air mixture in the compression cylinder that the moment of start request is in compression stroke, also the acting cylinder in being in expansion stroke is lighted a fire.Although the efficiency of the burning in acting cylinder is high not as the efficiency of the burning in compression cylinder, because burning emphasis is the slowest.But despite of that described burning also has the advantage that, i.e. producing additional torque, this improves the probability successfully reset of internal combustion engine.
If with acting cylinder can the predetermined angle of ignition acting cylinder in light fuel/air mixture, that just can particularly effectively control acting cylinder in combustion case.If can light fuel/air mixture in compression cylinder by the predetermined angle of ignition with compression cylinder, that just can particularly effectively control the combustion case in compression cylinder.
If so select compression cylinder can the predetermined angle of ignition, the torque produced by the burning in compression cylinder is made to become maximum, so the method is reliable especially for resetting, because making the probability successfully gathering the rotating speed decline of the internal combustion engine of coasting maximize by maximized torque.If so select acting cylinder can the predetermined angle of ignition so that the torque maximum acting on crank produced by acting cylinder, then this has resulted in the extra high probability successfully reset of internal combustion engine.
If so predetermined acting cylinder can the predetermined angle of ignition so that it is more than the detected degree in crank angle of acting cylinder, then advantage of this is that, can directly spray in this acting cylinder.The method is the most extremely simple, because ensure there is the fuel/air mixture that can light in cylinder to be lighted a fire without going through additional measure.If compression cylinder can the predetermined angle of ignition more than the detected degree in crank angle of compression cylinder, then resetting of internal combustion engine is the fastest, because need not wait until that another cylinder enters in compression stroke and exceedes the angle of ignition of compression cylinder.
If can spray fuel in acting cylinder by predetermined jet angle with acting cylinder, that just can particularly effectively control mixture formation doing work in cylinder.
If with compression cylinder can predetermined jet angle towards compression cylinder sprays fuel, that just can control the combustion case in compression cylinder particularly well.
Accompanying drawing explanation
Accompanying drawing shows the particularly advantageous embodiment of one in the present inventive method.Wherein:
Fig. 1 is the schematic diagram of the structure of internal combustion engine；
Fig. 2 is the jet angle for different multi-cylinder engines and the angle of ignition；
Fig. 3 is the ignition order of four-cylinder internal combustion engine；
Fig. 4 is the ignition order of six-cylinder engine；
Fig. 5 is the ignition order of eight cylinder IC engines；
Fig. 6 is flow chart in the present inventive method.
Detailed description of the invention
Fig. 1 shows the cylinder 10 of internal combustion engine, and this cylinder 10 has combustor 20 and piston 30, and described piston 30 connecting rod 40 is connected with crank 50.Described piston 30 moves up and down in known manner.The turning point of motion is referred to as dead point.It is referred to as top dead-centre from the transformation moving upward to move downward, and is referred to as bottom dead centre from the transformation being moved downwardly to move upward.The angle position of crank 50, the most so-called crankangle, define relative to top dead-centre in the way of common.Crank sensor 220 detects the angle position of crank 50.
Air to be combusted will be had to be drawn in described combustor 20 when piston 30 moves downward in known manner by air inlet pipe 80.This is referred to as intake stroke induction stroke in other words.By exhaustor 90, burned air is squeezed out from combustor 20 when piston 30 moves upward.This is commonly referred to exhaust stroke.The amount of the air sucked by air inlet pipe 80 is by air dosing devices, and the most namely choke valve 100 regulates, and the position of this regulation valve 100 is determined by controlling equipment 70.
By arranging that direct injection valve 110 within the combustion chamber 20 injects fuel in the air sucked from air inlet pipe 80 and produces fuel-air mixture within the combustion chamber 20.Generally determined by the persistent period and/or intensity triggering signal by described control equipment 70 by the amount of the fuel of described direct injection valve 110 injection.Spark plug 120 produces pilot spark and so lights described fuel-air mixture.Igniting is generally carried out in compression stroke calms the anger stroke in other words, is compressed by moving upward of piston 30 at described compression stroke fuel-air mixture described in stroke of calming the anger in other words.If just not long ago lighting a fire at top dead-centre, then burning emphasis is in the beginning of the expansion stroke after compression stroke.When being ejected in cylinder, the angle position of crank is referred to as jet angle, and when igniting, the angle position of crank is referred to as the angle of ignition.
The intake valve 160 being arranged on the transfer pipeline towards combustor 20 of air inlet pipe 80 is driven by the cam 180 on camshaft 190.Equally, the air bleeding valve 170 being arranged on the transfer pipeline towards combustor 20 of exhaustor 90 can be driven by the cam 182 on camshaft 190.Described camshaft 190 is coupled with crank 50.Usual crank 50 often revolves described camshaft 190 rotation that takes two turns and turns around.It is so designed that described camshaft 190 so that air bleeding valve 170 is opened in exhaust stroke, and closedown near top dead-centre.Described intake valve 160 opens near described top dead-centre and cuts out in the intake stroke.
Cylinder thus in order through these four driving strokes of intake stroke, compression stroke, expansion stroke and exhaust stroke.For the internal combustion engine of multi-cylinder, generally it is arranged so as to described cylinder so that described expansion stroke is periodically assigned on described cylinder.
For there is the internal combustion engine of four cylinders, described expansion stroke moves 720/4=180 ° of degree in crank angle, for there is the internal combustion engine of six cylinders, described expansion stroke moves 720 °/6=120 ° of degree in crank angle, for having the internal combustion engine of eight cylinders, described expansion stroke moves 720 °/8=90 ° of degree in crank angle.Spacing between the driving stroke of cylinder about described in can also implementing in the case of degree in crank angle Unequal distance in the present inventive method.
Fig. 2 a shows traditional injection and the ignition conditions of fuel for four-cylinder internal combustion engine.Fig. 2 a shows the first jet angle KWe1 and the first angle of ignition KWz1.Before described first jet angle KWe1 and the first angle of ignition KWz1 is in described top dead-centre OT.Before described first jet angle KWe1 is in the first angle of ignition KWz1.Fig. 2 a is also shown for the degree in crank angle being in the first cylinder Z1_4 calmed the anger in stroke of described four-cylinder internal combustion engine and the degree in crank angle of the 4th cylinder Z4_4 being in expansion stroke of described four-cylinder internal combustion engine.The inswept described angle position of degree in crank angle at cylinder described in the rotary movement of internal combustion engine.
If the degree in crank angle of the first cylinder Z1_4 of described four-cylinder internal combustion engine is inswept described first jet angle KWe1, the most described direct injection valve 110 just injects fuel in the combustor 20 of described first cylinder Z1_4, if the degree in crank angle of the first cylinder Z1_4 of described four-cylinder internal combustion engine is inswept described first angle of ignition KWz1, so spark plug 120 just produces pilot spark, say, that it lights fuel/air mixture in the combustor 20 of the first cylinder Z1_4 of described four-cylinder internal combustion engine.The rotary motion being made crank by the burning in the first cylinder Z1_4 of described four-cylinder internal combustion engine is accelerated, and the emphasis of described burning is in the region of top dead-centre OT.
Fig. 2 b shows the injection by the present invention and the ignition conditions of fuel for four-cylinder internal combustion engine.Here it is shown that the first jet angle KWe1 and the first angle of ignition KWz1 and the second jet angle KWe2 and the second angle of ignition KWz2.Fig. 2 b is also shown for the degree in crank angle being in 0. the first cylinder Z1_4 calmed the anger in stroke of described four-cylinder internal combustion engine and the degree in crank angle of the 4th cylinder Z4_4 being in expansion stroke of described four-cylinder internal combustion engine.Before described first jet angle KWe1 and the first angle of ignition KWz1 is in top dead-centre OT.Before described first jet angle KWe1 is just in the first angle of ignition KWz1.After described second jet angle KWe2 and the second angle of ignition KWz2 is in the degree in crank angle of the 4th cylinder Z4_4 of described four-cylinder internal combustion engine.Before described second jet angle KWe2 is in the second angle of ignition KWz2.
If the degree in crank angle of the first cylinder Z1_4 of described four-cylinder internal combustion engine is inswept described first jet angle KWe1, the most described direct injection valve 110 just injects fuel in the combustor 20 of the first cylinder Z1_4 of described four-cylinder internal combustion engine, if the degree in crank angle of the first cylinder Z1_4 of described four-cylinder internal combustion engine is inswept described first angle of ignition KWz1, then spark plug 120 just lights fuel/air mixture in the combustor 20 of the first cylinder of described four-cylinder internal combustion engine.If the degree in crank angle of the 4th cylinder Z4_4 of described four-cylinder internal combustion engine is inswept described second jet angle KWe2, the most described direct injection valve 110 just injects fuel in the combustor 20 of the 4th cylinder Z4_4 of described four-cylinder internal combustion engine, if the degree in crank angle of the 4th cylinder Z4_4 of described four-cylinder internal combustion engine is inswept described second angle of ignition KWz2, then spark plug 120 just lights fuel/air mixture in the combustor 20 of the 4th cylinder Z4_4 of described four-cylinder internal combustion engine.Burning in first cylinder Z1_4 of the most described four-cylinder internal combustion engine and the burning in the 4th cylinder Z4_4 of described four-cylinder internal combustion engine the most all makes torque be delivered on crank 50.The torque being delivered on crank 50 is more than the torque only transmitted during igniting in the first cylinder Z1_4 of described four-cylinder internal combustion engine.Therefore burning in 4th cylinder Z4_4 of described four-cylinder internal combustion engine improves, relative to the traditional injection illustrated in fig. 2 a and ignition method, the torque being delivered on crank 50.Depend on the rotating speed of such as internal combustion engine, can so select the first jet angle KWe1, the first angle of ignition KWz1, the second jet angle KWe2 and the second angle of ignition KWz2 so that the reliability reset of internal combustion engine maximizes.Especially can so select these parameters so that be delivered to the torque maximum on crank 50 by burning.
Fig. 2 c and Fig. 2 b analogously shows the injection by the present invention and the ignition conditions of fuel for six-cylinder engine.Here it is shown that described first jet angle KWe1 and the first angle of ignition KWz1, the 3rd jet angle KWe3 and thirdly fire angle KWz3, the 4th jet angle KWe4 and the 4th angle of ignition KWz4.Fig. 2 c is also shown for the degree in crank angle of the 5th cylinder Z5_6 being in expansion stroke being in the degree in crank angle of the first cylinder Z1_6 calmed the anger in stroke, described six-cylinder engine of described six-cylinder engine and the degree in crank angle of the 6th cylinder Z6_6 being in expansion stroke of described six-cylinder engine.Described first jet angle KWe1 and the first angle of ignition KWz1 is just before top dead-centre OT.Before described first jet angle KWe1 is in the first angle of ignition KWz1.After described 3rd jet angle KWe3 and the degree in crank angle of the 6th cylinder Z6_6 that thirdly fire angle KWz3 is in described six-cylinder engine.Described 3rd jet angle KWe3 be in thirdly fire angle KWz3 before.After described 4th jet angle KWe4 and the 4th angle of ignition KWz4 is in the degree in crank angle of the 5th cylinder Z5_6 of described six-cylinder engine.Before described 4th jet angle KWe4 is in the 4th angle of ignition KWz4.
If the degree in crank angle of the first cylinder Z1_6 of described six-cylinder engine is inswept described first jet angle KWe1, the most described direct injection valve 110 just injects fuel in the combustor 20 of the first cylinder Z1_6 of described six-cylinder engine, if the degree in crank angle of the first cylinder Z1_6 of described six-cylinder engine is inswept described first angle of ignition KWz1, then spark plug 120 just lights fuel/air mixture in the combustor 20 of the first cylinder Z1_6 of described six-cylinder engine.If the degree in crank angle of the 6th cylinder Z6_6 of described six-cylinder engine is inswept described 3rd jet angle KWe3, the most described direct injection valve 110 just injects fuel in the combustor 20 of the 6th cylinder Z6_6 of described six-cylinder engine, if the degree in crank angle of the 5th cylinder Z5_6 of described six-cylinder engine is inswept described 4th angle of ignition KWz4, then spark plug 120 just lights fuel/air mixture in the combustor 20 of the 5th cylinder Z5_6 of described six-cylinder engine.Burning in 5th cylinder Z5_6 of described six-cylinder engine and the burning in the 6th cylinder Z6_6 of described six-cylinder engine all improve the torque being delivered on crank 50.Can only burn in the first cylinder Z1_6 of described six-cylinder engine and in the 6th cylinder Z6_6 of described six-cylinder engine now.Same it is also possible that only burn in the first cylinder Z1_6 of described six-cylinder engine and in the 5th cylinder Z5_6 of described six-cylinder engine.Depend on the rotating speed of such as internal combustion engine, can so select the first jet angle KWe1, the first angle of ignition KWz1, the 3rd jet angle KWe3 and thirdly fire angle KWz3,4th jet angle KWe4 and the 4th angle of ignition KWz4 so that the reliability reset of internal combustion engine maximizes.Especially can so select these parameters so that be delivered to the torque maximum on crank 50 by burning.
Fig. 2 d and Fig. 2 c and Fig. 2 b analogously shows the injection by the present invention and the ignition conditions of fuel for eight cylinder IC engines.Here it is shown that described first jet angle KWe1 and the first angle of ignition KWz1, the 5th jet angle KWe5 and the 5th angle of ignition KWz5, the 6th jet angle KWe6 and the 6th angle of ignition KWz6.Fig. 2 d is also shown for degree in crank angle and the degree in crank angle being in the 6th cylinder Z6_8 calmed the anger in stroke of described eight cylinder IC engines of the 7th cylinder Z7_8 being in expansion stroke being in the degree in crank angle of the first cylinder Z1_8 calmed the anger in stroke, the degree in crank angle of the 8th cylinder Z8_8 being in expansion stroke of described eight cylinder IC engines, described eight cylinder IC engines of described eight cylinder IC engines.Before described first jet angle KWe1 and the first angle of ignition KWz1 is in top dead-centre OT.Before described first jet angle KWe1 is in the first angle of ignition KWz1.After the degree in crank angle of the 8th cylinder Z8_8 that described 5th jet angle KWe5 and the 5th angle of ignition KWz5 is in described eight cylinder IC engines.Before described 5th jet angle KWe5 is in the 5th angle of ignition KWz5.After the degree in crank angle of the 7th cylinder Z7_8 that described 6th jet angle KWe6 and the 6th angle of ignition KWz6 is in described eight cylinder IC engines.Before described 6th jet angle KWe6 is in the 6th angle of ignition KWz6.
If the degree in crank angle of the first cylinder Z1_8 of described eight cylinder IC engines is inswept described first jet angle KWe1, the most described direct injection valve 110 just injects fuel in the combustor 20 of the first cylinder Z1_8 of described eight cylinder IC engines, if the degree in crank angle of the first cylinder Z1_8 of described eight cylinder IC engines is inswept described first angle of ignition KWz1, then spark plug 120 just lights fuel/air mixture in the combustor 20 of the first cylinder Z1_8 of described eight cylinder IC engines.If the degree in crank angle of the 8th cylinder Z8_8 of described eight cylinder IC engines is inswept described 5th jet angle KWe5, in the combustor 20 of the 8th cylinder Z8_8 that the most described direct injection valve 110 just injects fuel into described eight cylinder IC engines, if the degree in crank angle of the 7th cylinder Z7_8 of described eight cylinder IC engines is inswept described 6th angle of ignition KWz6, then spark plug 120 just lights fuel/air mixture in the combustor 20 of the 7th cylinder Z7_8 of described eight cylinder IC engines.Burning in 8th cylinder Z8_8 of described eight cylinder IC engines and the burning in the 7th cylinder Z7_8 of described eight cylinder IC engines all improve the torque being delivered on crank 50.Can only burn in the first cylinder Z1_8 of described eight cylinder IC engines and in the 8th cylinder Z8_8 of described eight cylinder IC engines now.Same it is also possible that only burn in the first cylinder Z1_8 of described eight cylinder IC engines and in the 7th cylinder Z7_8 of described eight cylinder IC engines.Depend on the rotating speed of such as internal combustion engine, can so select the first jet angle KWe1, the first angle of ignition KWz1, the 6th jet angle KWe6 and the second angle of ignition KWz6,7th jet angle KWe7 and the 7th angle of ignition KWz7 so that the reliability reset of internal combustion engine maximizes.Especially can so select these parameters so that be delivered to the torque maximum on crank 50 by burning.
Fig. 3 shows the ignition order when resetting four-cylinder internal combustion engine.Fig. 3 a shows the ignition order in the case of as shown in Figure 2 a the same only defines described first jet angle KWe1 and the first angle of ignition KWz1.Fig. 3 a shows the degree in crank angle of the 4th cylinder Z4_4 being in expansion stroke being in the degree in crank angle of the first cylinder Z1_4 calmed the anger in stroke, the degree in crank angle of the second cylinder Z2_4 being in intake stroke of described four-cylinder internal combustion engine, the degree in crank angle being in the 3rd cylinder Z3_4 calmed the anger in stroke of described four-cylinder internal combustion engine and described four-cylinder internal combustion engine of described four-cylinder internal combustion engine.Correspondingly inject fuel in corresponding cylinder when corresponding degree in crank angle inswept first jet angle KWe1 in stroke of calming the anger, correspondingly light a fire when inswept first angle of ignition KWz1 in stroke of calming the anger.Direction of rotation according to internal combustion engine, first light a fire in the first cylinder Z1_4 of described four-cylinder internal combustion engine, then light a fire in the second cylinder Z2_4 of described four-cylinder internal combustion engine, light a fire followed by the 3rd cylinder Z3_4 of described four-cylinder internal combustion engine, then light a fire in the 4th cylinder Z4_4 of described four-cylinder internal combustion engine, igniting etc. in described first cylinder Z1_4 the most again.
Fig. 3 b and Fig. 3 a analogously show in Fig. 2 b as the ignition order in the case of the second jet angle KWe2 and the second angle of ignition KWz2 as described in the complementary definition of the first jet angle KWe1 and the first angle of ignition KWz1.First light a fire in the first cylinder Z1_4 of described four-cylinder internal combustion engine, and light a fire in the 4th cylinder Z4_4 of described four-cylinder internal combustion engine subsequently.Depending on the angle position that described jet angle is relative with the angle of ignition, it is also possible to so arrange, fights and lights a fire in the first cylinder Z1_4 of described four-cylinder internal combustion engine subsequently in first the 4th cylinder Z4_4 midpoint at described four-cylinder internal combustion engine.Can also light a fire in the two cylinder simultaneously.In the 4th cylinder Z4_4 of described four-cylinder internal combustion engine after igniting, described second jet angle KWe2 and the first angle of ignition KWz2 suspend need not (inaktiv), if that is other cylinder exceedes these angle positions in expansion stroke, the most do not carry out spraying or lighting a fire.Ignition order thus continue in usual manner.In cylinder after igniting first and the 4th, give the second cylinder Z2_4 igniting of described four-cylinder internal combustion engine as next cylinder, then light a fire in the 3rd cylinder Z3_4 of described four-cylinder internal combustion engine, then igniting etc. in described 4th cylinder Z4_4.
Fig. 4 Yu Fig. 3 analogously shows the ignition order when resetting six-cylinder engine.Fig. 4 a shows the ignition order in the case of only defining described first jet angle KWe1 and the first angle of ignition KWz1.A kind of ignition order of generation similar with Fig. 3 a, first lights a fire in the first cylinder Z1_6 in this ignition order, then lights a fire in the second cylinder Z2_6, then igniting etc. in the 3rd cylinder Z3_6.If additionally defining described 3rd jet angle KWe3 and thirdly fire angle KWz3 and described 4th jet angle KWe4 and the 4th angle of ignition KWz4, that just produces defined ignition order in fig. 4b.Similar with the embodiment of described six-cylinder engine, to illustrate at this, if having carried out injection at a cylinder when the inswept described third and fourth jet angle angle of ignition in other words to light a fire in other words, then the described third and fourth jet angle angle of ignition in other words just suspends need not.Then as ignition order, the first cylinder Z1_6, the 5th cylinder Z5_6, the 6th cylinder Z6_6, the second cylinder Z2_6, the 3rd cylinder Z3_6 etc. occur.As the first cylinder Z1_6, the 5th cylinder Z5_6 and the ignition order of the 6th cylinder Z6_6, can depend on that these three cylinder is arbitrarily exchanged in the angle position of jet angle and the angle of ignition.
Fig. 4 c show for also only define in addition to described first jet angle KWe1 and the first angle of ignition KWz1 described 3rd jet angle KWe3 and thirdly fire this situation of angle KWz3 ignition order.Then as ignition order, the first cylinder Z1_6, the 6th cylinder Z6_6, the second cylinder Z2_6, the 3rd cylinder Z3_6 etc. occur.The ignition order of described first cylinder Z1_6 and the 6th cylinder Z5_6 can depend on that the angle position of described jet angle and the angle of ignition exchanges.
Fig. 4 d shows for also only defining described 4th jet angle KWe4 and the ignition order of the 4th this situation of angle of ignition KWz4 in addition to described first jet angle KWe1 and the first angle of ignition KWz1.Then as ignition order, the first cylinder Z1_6, the 5th cylinder Z5_6, the second cylinder Z2_6, the 3rd cylinder Z3_6 etc. occur.The ignition order of described first cylinder Z1_6 and the 5th cylinder Z5_6 can depend on that the angle position of described jet angle and the angle of ignition exchanges.
Fig. 5 Yu Fig. 3 and Fig. 4 analogously shows the ignition order when resetting eight cylinder IC engines.Fig. 5 a shows the ignition order in the case of only defining described first jet angle KWe1 and the first angle of ignition KWz1.Analogously produce a kind of ignition order with Fig. 3 a and Fig. 4 a, first light a fire in the first cylinder Z1_8 in this ignition order, then light a fire in the second cylinder Z2_8, then igniting etc. in the 3rd cylinder Z3_8.If additionally defining described 5th jet angle KWe5 and the 5th angle of ignition KWz5 and described 6th jet angle KWe6 and the 6th angle of ignition KWz6, that just produces defined ignition order in figure 5b.Similar with the embodiment of described six cylinders eight cylinder IC engines in other words, to illustrate at this, if having carried out injection in a cylinder to light a fire in other words when the inswept described 5th and the 6th jet angle angle of ignition in other words, then described 5th and the 6th jet angle angle of ignition in other words just suspends need not.Then as ignition order, the first cylinder Z1_8, the 7th cylinder Z7_8, the 8th cylinder Z8_8, the second cylinder Z2_8, the 3rd cylinder Z3_8 etc. occur.As the first cylinder Z1_8, the 7th cylinder Z7_8 and the ignition order of the 8th cylinder Z8_8, can depend on that these three cylinder is arbitrarily exchanged in the angle position of jet angle and the angle of ignition.
Fig. 5 c shows for only defining described 5th jet angle KWe5 and the ignition order of the 5th this situation of angle of ignition KWz5 in addition to described first jet angle KWe1 and the first angle of ignition KWz1.Then as ignition order, the first cylinder Z1_8, the 8th cylinder Z8_8, the second cylinder Z2_8, the 3rd cylinder Z3_8 etc. occur.The ignition order of described first cylinder Z1_8 and the 6th cylinder Z6_8 can depend on that the angle position of described jet angle and the angle of ignition exchanges.
Fig. 5 d shows for only defining described 6th jet angle KWe6 and the ignition order of the 6th this situation of angle of ignition KWz6 in addition to described first jet angle KWe1 and the first angle of ignition KWz1.Then as ignition order, the first cylinder Z1_8, the 7th cylinder Z7_8, the second cylinder Z2_8, the 3rd cylinder Z3_8 etc. occur.The ignition order of described first cylinder Z1_8 and the 7th cylinder Z7_8 can depend on that the angle position of described jet angle and the angle of ignition exchanges.
Fig. 6 shows the flow chart by the method for resetting internal combustion engine of the present invention.Stopping requirement being detected, such as because Time transfer receiver predefined persistent period for idler revolutions of motor vehicles stopping is long in step 1000.The measure for turning off internal combustion engine is taked in following step 1010.Especially disconnect the injection in cylinder and igniting.The rotating speed of internal combustion engine now begins to decline.Followed by step 1020.The most before the stop of the internal combustion engine, namely start request detected when internal combustion engine rotates, such as because detecting that driver has handled accelerator pedal.
Followed by step 1030, detect the angle position of each cylinder in this step.Especially detecting, which cylinder ZK is in stroke of calming the anger and which cylinder ZA is in expansion stroke.For the embodiment of four-cylinder internal combustion engine, the first cylinder Z1_4 is in stroke of calming the anger and the 4th cylinder Z4_4 is in expansion stroke.For the embodiment of six-cylinder engine, the first cylinder Z1_6 is in stroke of calming the anger and the 5th cylinder Z5_6 and the 6th cylinder Z6_6 is in expansion stroke.For the embodiment of eight cylinder IC engines, the first cylinder Z1_8 is in stroke of calming the anger and the 7th cylinder Z7_8 and the 8th cylinder Z8_8 is in expansion stroke.May also detect that cylinder ZK, ZA, these cylinders ZK, ZA can calm the anger in stroke expansion stroke in other words can be in after interval of the predetermined very first time in other words after the predetermined anglec of rotation at described crank 50.Followed by step 1040.
Detect and predefine jet angle KWe and angle of ignition KWz in step 1040.At this, definition is in the first jet angle KWe1 and the first angle of ignition KWz1 of the cylinder calmed the anger in stroke.Same definition jet angle KWe and angle of ignition KWz, should carry out spraying lighting a fire in other words for described jet angle KWe and angle of ignition KWz in the cylinder during those are in expansion stroke.These angle positions of the described jet angle angle of ignition in other words can be predefined regularly.Such as can so select the first jet angle KWe1 and the first angle of ignition KWz1 so that the igniting in the first cylinder Z1 produces maximum torque or the power of maximum.Then can so select the injection in expansion stroke and the angle position of igniting so that light a fire in the cylinder being in expansion stroke and calm the anger in stroke simultaneously.But can also so select described angle position, thus reach to carry out the burning emphasis of the cylinder lighted a fire simultaneously.But can also be relative to the angle position being in detected by the cylinder calmed the anger in stroke expansion stroke in other words to select described angle position.Can also corresponding cylinder in step 1030 in the angle position that detects rise until stroke residing for this cylinder end interval defined in spray KWe and the angle position of igniting KWz.The most so select angle of ignition KWz so that only just the cylinder in being in expansion stroke is lighted a fire when the intake valve 160 of cylinder and air bleeding valve 170 are closed.Followed by step 1050.
In step 1050, carry out spraying lighting a fire in other words with the most predetermined angle position.Followed by step 1090, implement other the measure for starting internal combustion engine in this step, further sprayed in particular according to normal ignition order and light a fire, then method ends.
Claims (8)
1. for starting the method being in the multi-cylinder engine among coasting, wherein the compression cylinder in being in compression stroke lights fuel/air mixture, wherein, fuel/air mixture lighted by acting cylinder in being in expansion stroke, it is characterized in that, can light a fire by the predetermined angle of ignition (KWz) with described compression cylinder in compression cylinder, wherein, so select described compression cylinder can the predetermined angle of ignition (KWz) so that the torque maximum acting on crank (50) produced by described compression cylinder.
2. the method as described in claim 1, it is characterised in that can light a fire by the predetermined angle of ignition (KWz) with described acting cylinder in acting cylinder.
3. the method as described in claim 2, it is characterised in that so select described acting cylinder can the predetermined angle of ignition (KWz) so that the torque maximum acting on crank (50) produced by described acting cylinder.
4. the method as described in claim 2, it is characterised in that described acting cylinder can the predetermined angle of ignition (KWz) more than the detected crankangle of described acting cylinder.
5. the method as described in claim 1, it is characterised in that described compression cylinder can the predetermined angle of ignition (KWz) more than the detected crankangle of described compression cylinder.
6. the method as described in claim 1, it is characterised in that fuel can be sprayed in this acting cylinder by predetermined jet angle (KWe) with described acting cylinder.
7. the method as described in claim 1, it is characterised in that fuel can be sprayed in this compression cylinder by predetermined jet angle (KWe) with described compression cylinder.
8. the control of internal combustion engine and/or adjusting means (70), it is characterised in that in the method as according to any one of claim 1 to 7, it is programmed to be used in.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010041504.9 | 2010-09-28 | ||
| DE102010041504A DE102010041504B4 (en) | 2010-09-28 | 2010-09-28 | Method and computer program, electronic storage medium and control and / or regulating device for controlling an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434303A CN102434303A (en) | 2012-05-02 |
| CN102434303B true CN102434303B (en) | 2016-12-14 |
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| CN1678824A (en) * | 2002-10-22 | 2005-10-05 | 丰田自动车株式会社 | Start control system for internal combustion engine |
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| JP2004332598A (en) * | 2003-05-06 | 2004-11-25 | Denso Corp | Start control device for internal combustion engine |
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