CN1266943A - Fuel jet control device for single cylinder engine - Google Patents
Fuel jet control device for single cylinder engine Download PDFInfo
- Publication number
- CN1266943A CN1266943A CN00104145A CN00104145A CN1266943A CN 1266943 A CN1266943 A CN 1266943A CN 00104145 A CN00104145 A CN 00104145A CN 00104145 A CN00104145 A CN 00104145A CN 1266943 A CN1266943 A CN 1266943A
- Authority
- CN
- China
- Prior art keywords
- aforementioned
- injection
- stage
- cylinder engine
- single cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 58
- 239000007924 injection Substances 0.000 claims abstract description 58
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 claims 1
- 239000000295 fuel oil Substances 0.000 description 18
- 206010055001 Hypodontia Diseases 0.000 description 13
- 206010002583 anodontia Diseases 0.000 description 13
- 238000010304 firing Methods 0.000 description 13
- 230000005213 hypodontia Effects 0.000 description 13
- 201000006680 tooth agenesis Diseases 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 230000014509 gene expression Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009194 climbing Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
Images
Classifications
-
- 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
- Y02T10/40—Engine management systems
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
To provide a fuel injection control device for single cylinder engine performing excellent actuation as well as a multi-cylinder engine and reducing the cost. A pulse generator (2) generates a plurality of crank angle pulses at equal intervals and crank angle pulses at unequal intervals while a crankshaft of an engine makes one rotation. An ECU (3) performs a first injection by the pulse number generated within one rotation of the crankshaft or below according to the pulses and sets an injection control temporary stage and an injection control real stage. According to the injection control temporary stage and the injection control real stage, commands of second time and succeeding injections and ignitions are performed for each of an injector (4) and an ignition plug (5).
Description
The present invention relates to the Fuel Injection Control Device of single cylinder engine, particularly relate to the Fuel Injection Control Device of the single cylinder engine of the startability that has improved 4 stroke single cylinder engines.
Always, for example seen in the open special public clear 63-14174 communique of Japan Patent, 4 stroke multiple cylinder engines have been proposed to be used for improving, for example the fuel oil injection control method of the startability of 4 strokes, 4 cylinder engines.
4 strokes, 4 cylinder engines as the turn-sensitive device of motor, in general, have the indication bent axle to begin Time Pick-off Units regularly by the crankshaft angle sensor and the output fuel injection of the specific crank shaft angle of (720 ° of crank shaft angle) in 2 commentaries on classics.If with the fuel oil injection control method described in the aforementioned communique, for example as shown in Figure 9, be limited to the initial fuel injection that is right after after the engine start (constantly t0) regularly (t1 constantly), from all oil sprayers of 1～No. 4 (№ 1～4) to the necessary and sufficient amount of fuel of each cylinder injection, just spray simultaneously, then bent axle changeed 2 change after, just each cylinder all finishes once to light a fire (t2 constantly) after the blast stroke, carries out the transition to regular fuel injection order.
If use this method, even because be right after starting oil sprayer afterwards can't also carrying out fuel injection in the specific timing, so can improve startability.
In recent years, in two-wheeled motor vehicle, also adopt fuel-injected requirement height, on the car that multiple cylinder engine is installed, begun it and adopted.On the other hand, the practical two-wheel vehicle of little discharge capacity adopts single cylinder engine more, again 4 two-stroke engines that use in this single cylinder engine more.Therefore, though can think and the fuel-injected trend occurred from now on also on 4 stroke single cylinder engines, adopting, if control when planning on this 4 stroke single cylinder engine the aforesaid starting of utilization then exist following problem.
(1) in multiple cylinder engines such as 4 cylinder engines, exists the cylinder B that changes (360 °) for certain cylinder A phase shifting 1.Therefore, particularly rolling motor axle initial stage (starting working the initial stage of control system), cut apart bent axle 1 at interval by pulse and change the control stage of distributing, even estimated position to cylinder A distribution, be taken as the bent axle 1 that in fact staggers and change (360 °), can realize blast fully in cylinder B side by similarly carrying out fuel injection to cylinder A and cylinder B, the result can not cause the decline of startability yet.In addition, because in the beginning several commentaries on classics in back of exploding fully, the identification of cylinder A and cylinder B becomes possibility by means of the output of crankshaft angle sensor, so distribute in all stage that there is no need at that time to stagger at the crankshaft rotating angle, simply, re-recognizing into allocated phase is not from cylinder A but just passable from cylinder B.
, in single cylinder engine, because cylinder B do not exist certainly, so 1 change (360 °) if the control stage staggers to the crankshaft rotating angle of reality, it is difficult then stably continuing to explode fully.Thereby the result comes the startability variation compared with multiple cylinder engine.In addition, detection-phase distribute stagger when, be necessary to revise rapidly all stage of being distributed before this.
(2) single cylinder engine, though constitute cheap this point important glamour is arranged because of it is simple, but owing on this single cylinder engine, be provided with and same crankshaft angle sensor and the Time Pick-off Units of multiple cylinder engine, the cost climbing that produces so follow the employing of fuel injection system, this side is bigger for single cylinder engine, exists the such problem of the original glamour of single cylinder engine that undermines.
The objective of the invention is to,, provide a kind of performance inferior unlike multiple cylinder engine, good startability in view of aforesaid prior art, and the Fuel Injection Control Device used of the single cylinder engine that can under low cost, realize.
In order to realize aforementioned purpose, the invention provides the Fuel Injection Control Device that a kind of single cylinder engine is used, have: between the crankshaft rotating 1 of motor is changeed, the impulse mechanism by the crank shaft angle pulse of equally spaced a plurality of crank shaft angle pulses and unequal interval takes place; According to the pulse signal that aforementioned impulse mechanism begins to take place from the rolling motor axle, the interim stage is controlled in the injection that distributes in each pulse spacing; Control the interim stage according to aforementioned injection and in 2 of aforementioned bent axle changes, repeatedly measure the sucking pipe internal pressure pH-value determination pH mechanism of the sucking pipe internal pressure of motor; And according to the measured load of this sucking pipe internal pressure repeatedly, control the injection of interim step transition from aforementioned injection and control the formal stage, and according to the aforementioned pulse signal that begins to take place from the rolling motor axle, spray for the first time below the umber of pulse that in bent axle 1 changes, takes place, control the interim stage according to aforementioned injection simultaneously and carry out the 2nd later injection and igniting with the injection formal stage of control.
If employing the present invention then can carry out the transition to normal control in bent axle 3 changes, can provide inferior unlike multiple cylinder engine, good startability.In addition, because that cam pulses generator that multiple cylinder engine had becomes is unnecessary, so can constitute at an easy rate.
Fig. 1 is the skeleton diagram of the formation of expression major component of the present invention.
Fig. 2 is the flow diagram of the action of explanation one embodiment of the present of invention.
Fig. 3 is the flow diagram of continuous Fig. 2.
Fig. 4 is the time diagram of the action of expression when piloting engine before compression top dead center.
The time diagram of the action that Fig. 5 is expression when exhaust or air-breathing before top dead center are piloted engine.
Fig. 6 is illustrated in the expansion stroke time diagram of the action when pilot engine in the position that toothless portion) stops midway.
Fig. 7 is the side view of utilization two-wheeled motor vehicle of the present invention.
Fig. 8 is the motor of the aforementioned two-wheeled motor vehicle of expression and the figure of formation on every side thereof.
Fig. 9 is the time diagram of the action usefulness of explanation 4 strokes 4 cylinder engines.
Describe the present invention with reference to the accompanying drawings in detail.Fig. 7 is the side view of dextrad outward appearance that the two-wheeled motor vehicle of Fuel Injection Control Device of the present invention has been installed in expression.In the figure, two-wheeled motor vehicle 10 has the main car frame 41 from the top covering body, and the leg retaining 13 of corresponding driver's foot position.
In the front portion of aforementioned main car frame 41, rotate and supporting handlebar column 15 freely, fixing front fork 16 in the bottom of this handlebar column 15.At the front end of front fork 16, supporting front-wheel 17 via axle 23.Above front-wheel 17, front mudguard 18 is being set.
At the rear of aforementioned main car frame 41, disposing rear body 14, disposing seat 19 at an upper portion thereof.In the lower end of rear body 14 pivot 25 is set, swing arm 20 at this upper support.Posterior bumper 21 is being set on swing arm 20.At the central part of car body, disposing 4 stroke single cylinder engines 22.
Below with reference to Fig. 8, this motor 22 and formation on every side thereof are described.In the figure, in the downstream of the air stream of air-strainer 31, disposing throttle 32 and accelerator open degree sensor by wire rope 33 its apertures of control.In the downstream side of this throttle 32, disposing the sparger 35 that fuel injection is generated mixed gas in the sucking pipe 34.The direction that sparger 35 disperses to the intake valve 36 of motor towards mixed gas.In the present embodiment, use 4 stroke single cylinder engines 22, among the figure, spark plug 37, relief opening 38, engine oil temperature sensor 39 etc. are shown.The 40th, collecting company is connected to the crankshaft room of bent axle of the piston of motor, and this crankshaft room 40 supports by means of support 42 that is fixed in aforementioned main car frame 41 and hinge bracket 43.In this crankshaft room 40, disposing hypodontia magnetic resistance distributing head 46 and CRANK PULSES generator 47.Near crankshaft room 40, disposing actuating motor 45.
Below, the formation of the major component of one embodiment of the present of invention is described with reference to the skeleton diagram of Fig. 1.In the present embodiment, as shown in the figure, the hypodontia gear 1 that output comprises 9 pulses of hypodontia is transferred in rotation 1 when changeing with crankshaft rotating 1, pulse oscillator 2, carry out the ECU (electronic control unit) 3 of the starting control of single cylinder engine according to the pulse signal that obtains from this hypodontia pulse oscillator 2, aforementioned oil sprayer 4 (35) by this ECU3 control fuel-injected timing and emitted dose, spark plug 5 (37) in the control ignition firing chamber regularly, and the sucking pipe pressure sensor 6 of the air pressure of detection sucking pipe is a main composition.
Below, the function of starting control of the aforementioned ECU3 of one embodiment of the present of invention is described with reference to Fig. 2～Fig. 6.Here, Fig. 2, the 3rd represents the functional programs block diagram that this starting is controlled, Fig. 4 is the time diagram of expression starting action during 4 stroke single cylinder engines before compression top dead center, the time diagram of the action that the time diagram of the action that Fig. 5 is expression when exhaust or air-breathing before top dead center begin to start, Fig. 6 are expressions when expansion stroke begins to start midway.
At first, with reference to Fig. 2, Fig. 3 and Fig. 4, the action of present embodiment is described.If started at the moment of Fig. 4 t0 motor, then begin the processing of step S1～S3 of Fig. 2, the umber of pulse n of hypodontia gear 1 begins to be counted by ECU3.If the umber of pulse n that is counted for example becomes 3, then enter step S14, the instruction that ECU3 sprays the fuel oil of regulation trace to oil sprayer 4 outputs in step S2.This is the fuel injection of the moment t1 of Fig. 4.Moreover this first injection is not limited to n=3, as long as (first umber of pulse of spraying)≤(once the umber of pulse of changeing)/2 are passable.This is because if the undue timing of postponing first injection, then motor stops at exhaust stroke occasion midway, begin 180 ° of crankshaft rotating with the interior suction stroke that enters from the rotary engine axle, can not suck mixed gas and reduce the cause that starting improves effect in the firing chamber.In addition, this first jet width that sprays is an emitted dose, also can be taken as by the temperature of motor and determine.In addition, as can be seen from Figure 4, see from sense of rotation the pulse (Me1, Me10 etc.) of adjacent hypodontia pulse front to be decided to be the corresponding person of upper dead center (TDC) with piston.
If step S3 is judged as certainly, hypodontia gear rotation just 1 is changeed, and then ECU3 carries out the processing of step S4, detection hypodontia position (=N).This detection, when setting up, Me (n) is defined as hypodontia position N at Me (n)-Me (n+1)＞{ Me (n+1)-Me (n+2) } * S (in the formula, being any number that satisfies 1＜S＜4).In addition, though one handle according to this, recognizing that the upper dead center (TDC) of piston is in the interval of Me (n-1), is in compression stroke or in exhaust stroke owing to not understanding this upper dead center, so carry out following processing in order to detect this point.
In step S5, ECU3 with aforementioned hypodontia position (=N), determine interim stage NO. (=m).This interim stage NO. (=m), can determine according to m=(15-N).In the occasion of Fig. 4, because N=2, so m=13.
Then, carry out the judgement of step S6～S11.That is to say, carry out this interim stage NO.m and whether be any one judgement in 3,4,10,12,13 and 18.This be because, be above-mentioned when several at interim stage NO.m, can pre-determine each cause of handling that implementation is hereinafter addressed.
Here, with reference to Fig. 4, the interim stage NO.m during owing to starting is 13, so being judged as certainly of step S10 enters step S12, carries out the judgement whether suction tude internal pressure Pb1 and Pb2 are read into.One be judged as when negating and enter step S13 at this, carry out the fuel injection of the amount determined according to accelerator open degree and engine speed Ne.This is because pre-determined during interim stage NO.m=13 and carried out the fuel-injected cause.Then, enter step S11.
In step S11, carry out the judgement whether interim stage NO.m=18 sets up, if this one is judged as and negates then enter step S15, carry out the add-one operation of interim stage NO.m, return the step S6 of Fig. 2.
Carry out the processing of step S6～S11, S15 repeatedly, the value of interim stage NO.m is by add-one operation, if become interim stage NO.m=18, step S11 is judged as certainly, then enter step S16 and interim stage NO.m is changed to 0 again, enter step S17, read in the 1st time sucking pipe internal pressure Pb1.Moreover, be decided to be the minimum value that till this reads in end, keeps suction pipe internal pressure Pb.The value of this sucking pipe internal pressure Pb becomes the timing of minimum value, and the suction stroke this point of corresponding motor is tangible.Then, enter step S15, carry out the add-one operation of interim stage NO.m.
And then the processing of aforesaid repeatedly step S6～S11, S15 if (m=3) affirmed in being judged as of step S6, then enters step S18 and sends the 1st firing command to spark plug 5.At this moment, because fuel oil supplies to and is full of in the firing chamber, so blast fully.Then, if (m=4) affirmed in being judged as of step S7, then carry out the judgement of step S19.That is to say whether read in the Pb1 of sucking pipe internal pressure Pb and the judgement of Pb2.Become the judgement of whether reading in Pb2 at current time.Then,, then enter step S20, read in the 2nd time sucking pipe internal pressure Pb2 if (m=10) affirmed in being judged as of step S8.Then, if being judged as of step S9 certainly (m=12) then enters step S21, instruct the 2nd igniting.At this moment, fuel oil does not supply in the firing chamber owing to be actually exhaust stroke, so the blast of fuel oil does not take place.
Then,, then enter step S12, whether read in the 1st and the 2nd time sucking pipe internal pressure Pb1 and the judgement of Pb2 if (m=13) affirmed in being judged as of step S10.If this one is judged as certainly, then enter step S22, carry out the judgement whether Pb1＞Pb2 sets up.In this object lesson, this is because this one is judged as negatively, so enter step S23, interim stage NO.m=13 is defined as formal stage NO.13.This is because according to this processing, distinguishes the cause of the upper dead center (TDC) of interim stage NO.m=13 for the upper dead center in the exhaust stroke.
In step S25,, carry out and the rotational speed N e of motor and the fuel injection of the corresponding amount of other parameters because be after just determining formal stage NO.13.Moreover, after this step S25, enter step S26, carry out the processing in formal stage, according to the stage computing, carry out fuel injection by discharge time of reading from MAP and emitted dose.This fuel injection substantially, is carried out between stage NO.4～11.This is because the two-wheel vehicle used engine of little air displacement is owing to using under high rotating speed, so from spraying the cause that necessitates in early days.In addition, according to the stage computing, light a fire by the ignition timing of reading from MAP.This igniting substantially, is carried out between stage NO.1～3.
As above, in the object lesson of Fig. 4, because from piloting engine, fuel oil exploded fully and begins normal operation when crankshaft rotating 2 was changeed (720 °), so compared with multiple cylinder engine, can provide not inferior substantially startability.
Below, with reference to Fig. 2, Fig. 3 and Fig. 5 action when the before top dead center of exhaust or suction stroke begins to start is described.This object lesson is equivalent to and the occasion of earlier figures 4 occasion of 360 ° of phase differences mutually.
The action of the step S1 of Fig. 2～S5 is identical with the occasion of Fig. 4, and interim stage NO.m is that 13 the also occasion with Fig. 4 is identical in step S5.Because interim stage NO.m is 13, so being judged as certainly of step S10 at first enters step S12, this one is judged as negatively, carries out the fuel injection of step S13.At this moment, because motor is in the upper dead center (TDC) of compression stroke, so fuel oil does not supply in the firing chamber.Then, step S11 is judged as certainly, carries out the processing of step S17, just reads in the 1st time sucking pipe internal pressure Pb1.At this moment, because do not pass through suction stroke as yet, so sucking pipe internal pressure Pb1 almost illustrates the value about barometric pressure.Moreover, though suction stroke arrives after motor just starts, because the rotating speed of motor raises as yet at this moment, so sucking pipe internal pressure Pb does not descend.
Then, the judgement of step S6 becomes certainly, lights a fire in step S18., because this moment, fuel oil did not supply in the firing chamber as yet, so fuel oil does not explode because of aforementioned igniting.Then, if being judged as certainly of step S7, though carry out the judgement of step S19, owing to the sucking pipe internal pressure Pb2 that does not read in the 2nd time as yet, thus this one be judged as negative.Then, if being judged as certainly of step S8 then enters step S20, read in the 2nd time sucking pipe internal pressure Pb2.Because the sucking pipe internal pressure Pb of suction stroke, just minimum value is held, so the 2nd time sucking pipe internal pressure Pb2 becomes less than Pb1.If step S9 then enters step S21 for certainly, send firing command.At this moment, owing to be inhaled in the firing chamber in the later suction stroke of interim stage NO.m=4 at the fuel oil that aforementioned moment t2 is sprayed, motor is started working so fuel oil explodes fully.That is to say that beginning is operation normally.
Then, if being judged as certainly of step S10 then enters step S12, judge whether to read in the 1st, the 2nd time sucking pipe internal pressure Pb1, Pb2.If this one is judged as certainly then enters step S22 and carry out the judgement whether Pb1＞Pb2 sets up.In this object lesson,,, stage NO.m=13 temporarily is defined as formal stage NO.4 so enter step S24 because this one is judged as certainly.This is because according to the judgement of step S22, distinguish that the upper dead center (TDC) of interim stage NO.m=13 is the cause of the upper dead center in the compression stroke.
Then, enter step S26,,, carry out fuel injection by discharge time of reading from MAP and emitted dose according to the computing in formal stage with aforementioned same.Substantially, between stage NO.4～11, carry out.This is because the two-wheel vehicle used engine of little air displacement is owing to using under high rotating speed, so from spraying the cause that necessitates in early days.In addition, according to formal stage computing, light a fire by the firing time of reading from MAP.Substantially, between stage NO.1～3, carry out.
If with this object lesson, then the igniting by interim stage NO.m=12 can begin normal operation.That is to say, become that fuel oil can explode fully and begin normal operation when (720 °+360 °) are changeed in bent axle 3 rotation 3.
Below, with reference to Fig. 2, Fig. 3 and Fig. 6 action when expansion stroke toothless portion) piston midway stops is described.Moreover in two-wheel vehicle etc., though the piston during shutting engine down continues motion because of inertia, owing to the frictional force compression stroke maximum of bent axle, so piston stops in expansion stroke, the starting of motor next time mostly from expansion stroke midway.
Now, if make motor begin starting at the moment of Fig. 6 t0, the then action of the step S1 of Fig. 2～S3 and aforementionedly similarly carry out is if the umber of pulse n that is counted in step S2 for example is 3, then enter step S14, the instruction that ECU3 sprays the fuel oil of regulation trace to oil sprayer 4 outputs.As a result, the fuel oil of regulation trace is injected at moment t1.If step S3 is judged as certainly, enter step S4, then to be detected as be 9 position to hypodontia position N, in step S5, interim stage NO.m is confirmed as 6.Thereby, from interim stage NO.6 starting.
As a result, at first,, then enter step S20, read in the 1st time sucking pipe internal pressure Pb1 if (m=10) affirmed in being judged as of step S8.At this moment, the value of the suction stroke that is kept becomes little value owing to being read into.Then,, then enter step S21, form firing command if (m=12) affirmed in being judged as of step S9.At this moment, so because the fuel oil that sprays at aforementioned moment t1 is inhaled into blast fully in the firing chamber in suction stroke thereafter, motor is started working.
Then, proceed and interim stage NO.m is added 1, to become m=13 and being judged as certainly of step S10, then to enter step S12, to judge whether to read in the 1st and the 2nd time sucking pipe internal pressure Pb1 and Pb2 if handle.Owing at current time, do not read in the 2nd time sucking pipe internal pressure Pb2 as yet,, carry out fuel injection according to the definite amount of the rotational speed N e of motor so enter step S13.
If interim stage NO.m is added 1, being judged as of step S11 (m=18) certainly then enters step S16, and m is entered step S17 simultaneously by clear 0, reads in the 2nd time sucking pipe internal pressure Pb2.This sucking pipe internal pressure Pb2 of one the 2nd time is for almost being both conspicuous with barometric pressure etc. greater than the 1st time sucking pipe internal pressure Pb1.
Then, if (m=3) affirmed in being judged as of step S6, then enter step S18 and light a fire., at this moment, owing to fuel oil does not enter in the firing chamber, so do not explode.Then, if being judged as of step S7 certainly (m=4) then enters step S19, judge whether to read in the 1st and the 2nd time sucking pipe internal pressure Pb1 and Pb2.Specifically, this judgement becomes certainly, enters step S27.In this step S27, carry out the judgement whether Pb1＞Pb2 sets up, in this object lesson and since this one be judged as negative, so enter step S28.In step S28, interim stage NO.m=4 is defined as formal stage NO.13.This is because according to the judgement of step S27, distinguish that the upper dead center (TDC) of interim stage NO.m=4 is the cause of the upper dead center in the exhaust stroke.Moreover, for certainly the time, enter step S29 at step S27, stage NO.m=4 temporarily is defined as formal stage NO.4.
Then, enter abovementioned steps S26,,, carry out fuel injection by discharge time of reading from MAP and emitted dose according to the computing in formal stage with aforementioned same.Substantially, between stage NO.4～11, carry out.This is because the two-wheel vehicle used engine of little air displacement is owing to using under high rotating speed, so from spraying the cause that necessitates in early days.In addition, according to formal stage computing, light a fire by the ignition timing of reading from MAP.Substantially, between stage NO.1～3, carry out.
If with this object lesson, then same with the 1st object lesson, can explode fully and begin normal operation at bent axle fuel oil when (720 °) are changeed in the axle rotation 2 of piloting engine.
Moreover though in aforesaid explanation, be taken as 9 pulses that hypodontia gear 1 output when crankshaft rotating 1 is changeed contains the hypodontia pulse, the present invention is not limited to this, also can more than or be less than 9.
Can understand that according to above explanation if adopt the present invention, then at least once exploding fully becomes possibility, and can carry out the transition to normal control in this bent axle 3 changes between bent axle 3 changes.Therefore, can provide inferior unlike multiple cylinder engine, good startability.In addition, because that cam pulses generator that multiple cylinder engine had becomes is unnecessary, so can constitute at an easy rate.In addition, owing to adopt along with bent axle 1 is transmitted the form of giving birth to a plurality of pulses, careful control is carried out in the rotation change in can changeing the serious more bent axle 1 of the motor that cylinder number is few.
Claims (6)
1. the Fuel Injection Control Device of a single cylinder engine is characterized in that, has:
Between the crankshaft rotating 1 of motor is changeed, the impulse mechanism of the pulse sequence be made up of uniformly-spaced portion and unequal interval portion takes place,
According to the pulse signal that aforementioned impulse mechanism begins to take place from the rolling motor axle, the interim stage is controlled in the injection that distributes in each pulse spacing,
Control the interim stage according to aforementioned injection and in 2 of aforementioned bent axle changes, repeatedly measure the sucking pipe internal pressure pH-value determination pH mechanism of the sucking pipe internal pressure of motor, and
According to the measured load of this sucking pipe internal pressure repeatedly, control the injection of interim step transition from aforementioned injection and control the formal stage,
According to the aforementioned pulse signal that begins to take place from the rolling motor axle, spray for the first time below the umber of pulse that in bent axle 1 changes, takes place, control the interim stage according to aforementioned injection simultaneously and carry out the 2nd later injection and igniting with the injection formal stage of control.
2. the Fuel Injection Control Device of the single cylinder engine described in the claim 1 is characterized in that,
Temperature according to motor is determined aforementioned first injection.
3. the Fuel Injection Control Device of the single cylinder engine described in the claim 1 or 2 is characterized in that,
The timing of carrying out aforementioned first injection, be taken as from beginning rolling motor axle, the aforementioned umber of pulse in the middle of changeing to bent axle 1 1/2 between.
4. the Fuel Injection Control Device of the single cylinder engine described in the claim 1 is characterized in that,
When aforementioned crankshaft rotating 1 is changeed, according to determining that by the crank shaft angle pulse of the unequal interval that aforementioned impulse mechanism took place aforementioned injection controls the start sequence number in interim stage.
5. the Fuel Injection Control Device of the single cylinder engine described in the claim 1 is characterized in that,
The minimum value of the sucking pipe internal pressure of aforementioned motor, be held this sucking pipe internal pressure determined till.
6. the Fuel Injection Control Device of the single cylinder engine described in the claim 1 is characterized in that,
According to the magnitude relationship of the measured load of aforementioned sucking pipe internal pressure repeatedly, determine aforementioned injection to control each stroke corresponding of formal stage and motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP067938/1999 | 1999-03-15 | ||
| JP06793899A JP4159006B2 (en) | 1999-03-15 | 1999-03-15 | Fuel injection control device for single cylinder engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1266943A true CN1266943A (en) | 2000-09-20 |
| CN1119519C CN1119519C (en) | 2003-08-27 |
Family
ID=13359385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00104145A Expired - Fee Related CN1119519C (en) | 1999-03-15 | 2000-03-15 | Fuel jet control device for single cylinder engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4159006B2 (en) |
| CN (1) | CN1119519C (en) |
| IT (1) | IT1319960B1 (en) |
| TW (1) | TW487780B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398801C (en) * | 2004-11-29 | 2008-07-02 | 本田技研工业株式会社 | Fuel jet controller |
| CN100398803C (en) * | 2004-11-29 | 2008-07-02 | 本田技研工业株式会社 | Position correction controller of rotary body |
| CN102472195A (en) * | 2009-07-22 | 2012-05-23 | 株式会社京浜 | Control apparatus for internal combustion engine |
| CN102644516A (en) * | 2011-02-18 | 2012-08-22 | 光阳工业股份有限公司 | Starting method of single-cylinder four-stroke engine |
| CN104343565A (en) * | 2014-08-26 | 2015-02-11 | 力帆实业(集团)股份有限公司 | Start control method and system of electronic injection motorcycle engine |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4020185B2 (en) | 2001-07-10 | 2007-12-12 | 三菱電機株式会社 | Fuel injection control device for internal combustion engine |
| TWI221880B (en) | 2001-10-24 | 2004-10-11 | Yamaha Motor Co Ltd | Engine control device |
| TWI224651B (en) * | 2001-11-30 | 2004-12-01 | Yamaha Motor Co Ltd | Engine controller |
| JP2009121304A (en) * | 2007-11-14 | 2009-06-04 | Nikki Co Ltd | Fuel injection control method of engine and fuel injection control device for the same |
| JP5372728B2 (en) * | 2009-12-25 | 2013-12-18 | 日立オートモティブシステムズ株式会社 | In-cylinder injection internal combustion engine control device |
| JP2014077405A (en) * | 2012-10-11 | 2014-05-01 | Yamaha Motor Co Ltd | Engine system and saddle riding vehicle |
| EP3309375A4 (en) * | 2015-06-15 | 2018-07-04 | Yamaha Hatsudoki Kabushiki Kaisha | Engine system and saddle ride-type vehicle |
-
1999
- 1999-03-15 JP JP06793899A patent/JP4159006B2/en not_active Expired - Fee Related
-
2000
- 2000-02-23 TW TW089103177A patent/TW487780B/en not_active IP Right Cessation
- 2000-03-14 IT IT2000TO000238A patent/IT1319960B1/en active
- 2000-03-15 CN CN00104145A patent/CN1119519C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398801C (en) * | 2004-11-29 | 2008-07-02 | 本田技研工业株式会社 | Fuel jet controller |
| CN100398803C (en) * | 2004-11-29 | 2008-07-02 | 本田技研工业株式会社 | Position correction controller of rotary body |
| CN102472195A (en) * | 2009-07-22 | 2012-05-23 | 株式会社京浜 | Control apparatus for internal combustion engine |
| CN102472195B (en) * | 2009-07-22 | 2014-07-30 | 株式会社京浜 | Control apparatus for internal combustion engine |
| CN102644516A (en) * | 2011-02-18 | 2012-08-22 | 光阳工业股份有限公司 | Starting method of single-cylinder four-stroke engine |
| CN102644516B (en) * | 2011-02-18 | 2016-04-27 | 光阳工业股份有限公司 | The starting method of single-cylinder four-stroke engine |
| CN104343565A (en) * | 2014-08-26 | 2015-02-11 | 力帆实业(集团)股份有限公司 | Start control method and system of electronic injection motorcycle engine |
| CN104343565B (en) * | 2014-08-26 | 2017-02-15 | 力帆实业(集团)股份有限公司 | Start control method and system of electronic injection motorcycle engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000265894A (en) | 2000-09-26 |
| ITTO20000238A1 (en) | 2001-09-14 |
| IT1319960B1 (en) | 2003-11-12 |
| TW487780B (en) | 2002-05-21 |
| CN1119519C (en) | 2003-08-27 |
| JP4159006B2 (en) | 2008-10-01 |
| ITTO20000238A0 (en) | 2000-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1119519C (en) | Fuel jet control device for single cylinder engine | |
| CN100404828C (en) | Apparatus and method for controlling fuel injection in internal combustion engine | |
| CN100572781C (en) | Engine controlling unit | |
| EP0806559B1 (en) | Method of controlling the operation of an internal combustion engine of the two-stroke cycle and direct fuel injection type and internal combustion engine | |
| CN1292157C (en) | Method for increasing exhaust gas temperature of spark-ignition, direct-injection internal combustion engine | |
| CN1667255A (en) | Direct fuel injection/spark ignition engine control device | |
| CN1179119C (en) | Method for operation of combustion engine | |
| CN101576016A (en) | Cylinder fueling coordination for torque estimation and control | |
| CN102733962A (en) | Variable compression ratio engine control apparatus | |
| EP0684374A3 (en) | Fuel injection control system for internal combustion engines | |
| CN100337019C (en) | Start-up control of in-cylinder fuel injection spark ignition internal combustion engine | |
| CN1616808A (en) | Fuel injection control apparatus and fuel injection control method for internal combustion engine | |
| CN101061300A (en) | Start control apparatus for internal combustion engine | |
| CN1324230C (en) | Engine control device | |
| CN100357581C (en) | Four-stroked engine control device and control method | |
| CN101091047A (en) | Engine start control apparatus, engine start control method, and motor vehicle equipped with engine start control apparatus | |
| CN101061299A (en) | Internal combustion engine stop method | |
| CN1214185C (en) | Igniting correct timing controller for I.C. engine | |
| JPH08312438A (en) | Fuel injection method and fuel injection control device in two-cycle engine | |
| CN1541303A (en) | Engine control device | |
| US4875452A (en) | Fuel control apparatus for an internal combustion engine | |
| CN108331673A (en) | Variable second injection control for combustion engine unit | |
| CN104981597A (en) | Control device and control method for internal combustion engine | |
| US9309827B2 (en) | Fuel injection control device for saddle-ride type vehicle | |
| CN101397945B (en) | System and method for injecting fuel into a direct injection engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030827 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |