CN104033265B - The engine rotational speed control apparatus of internal combustion engine - Google Patents
The engine rotational speed control apparatus of internal combustion engine Download PDFInfo
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- CN104033265B CN104033265B CN201410080871.9A CN201410080871A CN104033265B CN 104033265 B CN104033265 B CN 104033265B CN 201410080871 A CN201410080871 A CN 201410080871A CN 104033265 B CN104033265 B CN 104033265B
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Abstract
The present invention provides the engine rotational speed control apparatus of internal combustion engine, by simply controlling engine speed can just promptly stablized in rotating speed of target.The engine rotational speed control apparatus detection of the present invention is in the combustion control equipment of the control object as current stroke（12）CRANK PULSES signal time before will performing（T0）, based on the CRANK PULSES signal time value before combustion control equipment will perform（T0）With preset setting CRANK PULSES signal time value（T）Deviation, control as current stroke control object combustion control equipment execution.Using the structure, the unstable of the rotating speed of bent axle 5 just is being instantly obtained amendment later, and reflects into back to back rotary speed, therefore even if the engine speed of single-cylinder four-stroke engine has larger unstable, can also make its immediate stability in rotating speed of target.
Description
Technical field
The present invention relates to the engines for the internal combustion engine that the engine speed to single-cylinder four-stroke engine is controlled
Revolution speed control device.
Background technology
The single-cylinder four-stroke engine for being equipped on motor bike only carries out generating in a cylinder work done of shaft torque
Stroke and the compression travel for forming resistance, therefore, different from multicylinder engine, idling speed easily becomes unstable（Because make
The piston speed of work(stroke is fast, and the piston speed of compression travel is slow）.
Therefore, all the time, using the bent axle arteries and veins of the crankshaft sensor in the rotation position of defined angle detection bent axle
Signal is rushed, as disclosed in patent document 1, detects the deadline in previous turn of CRANK PULSES signal of current stroke
With the deadline of first two turns of CRANK PULSES signal, the time difference based on them, i.e. deviation, when correcting the igniting of spark plug
The fuel injection amount for either correcting injector or the inhaled air volume for correcting air throttle are carved, so that idling spin stabilization.
Prior art document
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2002-317741 bulletins
But for single-cylinder four-stroke engine, first two turns of CRANK PULSES signal deadline and previous turn of bent axle
Pulse signal deadline, there are larger unstable in itself.When with it is such unstable when, easily become difficult to reach reason
The time of ignition thought is difficult to realize ideal fuel injection quantities or inhaled air volume.Therefore, in single-cylinder four-stroke engine
In, it is difficult to make idling steady in the idling speed of rotating speed of target.Moreover, not only idling speed, it is also difficult to stablize in other mesh
Mark rotating speed.
Invention content
It is therefore an object of the present invention to provide a kind of engine rotational speed control apparatus of internal combustion engine, can pass through
Simple control makes engine speed immediate stability in rotating speed of target.
The present invention to reach above-mentioned purpose, provides a kind of engine rotational speed control apparatus of internal combustion engine, feature exists
In the engine rotational speed control apparatus has：Crank angle sensor is detected in defined angle and is started with single-cylinder four-stroke
The rotation position of the bent axle of the piston connection of machine simultaneously generates CRANK PULSES signal；And control unit, it is sensed based on the crank angle
The CRANK PULSES signal of device controls the combustion control equipment of the single-cylinder four-stroke engine, in the control unit, by described in
The terminal of CRANK PULSES signal plays one turn of region as a stroke, and will be according to a stroke combustion control equipment job
Stroke as current stroke, and with the rotating speed of target based on single-cylinder engine it is preset, as current stroke
Control object control device will perform before setting CRANK PULSES signal time value, detect as current stroke
The combustion control equipment of the control object will perform before with setting CRANK PULSES signal time value it is corresponding at the time of
CRANK PULSES signal time, based on the CRANK PULSES signal value before combustion control equipment will perform relative to presetting
Setting CRANK PULSES signal time value deviation, control as the control object of current stroke the combustion control equipment
It performs.
Preferably, combustion control equipment is spark plug, and the time of ignition of the spark plug is controlled.
Preferably, combustion control equipment is the injector for spraying fuel, and the fuel injection amount of the injector is controlled.
Preferably, combustion control equipment is to the air throttle that is controlled of sucking air, the sucking air of the air throttle
Amount is controlled.
According to the present invention, always according to the CRANK PULSES signal time before combustion control equipment will perform with being based on
As the deviation of setting CRANK PULSES signal time that the rotating speed of target of target is set, control current stroke becomes control object
Combustion control equipment.
Therefore, even if the engine speed of single-cylinder four-stroke engine has larger unstable, its immediate stability can also be made
In rotating speed of target.Moreover, control is simple.
It, can be effectively particularly when control object is spark plug, injector, these combustion control equipment of air throttle
Stablize engine speed.
Description of the drawings
Fig. 1 is the internal combustion engine for showing to apply the engine rotational speed control apparatus of the 1st embodiment of the present invention
The structure chart of outline.
Fig. 2 is the block diagram for the structure for showing engine rotational speed control apparatus.
Fig. 3 is the flow chart for the control for illustrating the engine rotational speed control apparatus.
Fig. 4 is that the sequence diagram that the situation of rotating speed of target illustrates is controlled so as to the engine speed.
Fig. 5 is the structure of the engine rotational speed control apparatus for the pith for showing the 2nd embodiment as the present invention
Block diagram.
Fig. 6 is the flow chart for the control for illustrating the engine rotational speed control apparatus.
Fig. 7 is the structure of the engine rotational speed control apparatus for the pith for showing the 3rd embodiment as the present invention
Block diagram.
Fig. 8 is the flow chart for the control for illustrating the engine rotational speed control apparatus.
Label declaration
1：Single-cylinder four-stroke engine；
2：Piston；
5：Bent axle；
25：Control unit.
Specific embodiment
Hereinafter, based on the 1st embodiment shown in Fig. 1~Fig. 4, the present invention will be described.
Fig. 1 shows the structure of the outline for the single cylinder 4 Stroke Engine entirety for being equipped on motor bike, is shown in Fig. 1
Single-cylinder four-stroke engine as internal combustion engine（Hereinafter referred to as engine 1）.
The engine 1 has：Cylinder block 3, piston 2, which is accommodated, to be moved back and forth；Crankcase 7, storage is with living
The connected bent axle 5 of plug 2 and the flywheel 6 being connected with bent axle 5；And cylinder head 13, with air inlet 10a, exhaust outlet 10b, open
Close air inlet 10a, the inlet valve 11a of exhaust outlet 10b, exhaust valve 11b and spark plug 12（Igniter）.In air inlet
10a has been sequentially connected the air inlet pipe 16 for being equipped with injector 15, the air throttle 17 with idle speed control valve 17a, air flow meter
18 and air cleaner 19.
In addition, being for example equipped with crank angle sensor 22 on flywheel 6, the crank angle sensor 22 is for example by this
The protrusion tooth 20 of the part setting of the peripheral part of flywheel 6 and the protrusion detection sensor portion being arranged around the flywheel 6
21 are formed.20, protrusion tooth is for example lighted a fire here such as disposed in the defined position by advance side from the top dead centre of piston 2
Moment is set to from the top dead centre of piston 2 30 ° of position in advance.Utilize the bent axle sent out from the crank angle sensor 22
Pulse signal detects the rotation position of bent axle 5.Certainly, from crank angle sensor 22 generate CRANK PULSES pick-off signal and
Connect signal.
On the other hand, label 25 is the control unit being made of such as microcomputer.It is inputted to the control unit 25 not shown
Motor bike throttle control handle opening amount signal 8（Accelerator open degree）With the rotating speed of engine 1（Engine speed）Deng.Control
Portion 25 and spark plug 12, injector 15, air throttle 17 and crank angle sensor 22 etc. are connect, based on utilization motor bike
Throttle control handle（It is not shown）Aperture and the obtained operating condition of motor bike such as engine speed, to as Combustion System
Spark plug 12, injector 15 and air throttle 17 of equipment etc. are controlled.Namely based on the operating condition of motor bike, it is obtained
The inhaled air volume of the time of ignition of spark plug 12 required by the operating, the fuel injection amount of injector 15 and air throttle 17
Deng, and according to the value being obtained control spark plug 12, injector 15 and air throttle 17 etc..
In control unit 25, be in addition to this also added into form engine rotational speed control apparatus, when 1 idling of engine transport
Make the function of idling speed steady running of the engine 1 with rotating speed of target when turning.
As shown in the timing diagram of figure 4, which has following function first：It will be defeated by crank angle sensor 22
The terminal of CRANK PULSES signal gone out plays one turn of region as a stroke, and by the igniting including the spark plug 12, injection
Stroke including the fuel injection of device 15, the air inlet sucking of air throttle 17a is respectively as current stroke α.
On this basis, following function is set in control unit：Detect the combustion of the control object as current stroke
Burn control device will perform before CRANK PULSES signal time function, here the CRANK PULSES signal time be, for example, scheme
The spark plug 13 of current stroke α shown in 4 will work（It performs）CRANK PULSES signal pick-off signal time T0 before；It deposits
The function based on the preset setting CRANK PULSES signal time value of rotating speed of target is stored up, the CRANK PULSES signal time value is for example
It is that spark plug 13 corresponding with above-mentioned CRANK PULSES signal pick-off signal time T0, above-mentioned will work（It performs）At the time of before
Setting CRANK PULSES signal expiration time value T（It is set based on rotating speed of target）；To setting CRANK PULSES signal deadline
The value T and above-mentioned CRANK PULSES signal expiration time value T0 detected is compared to calculate the function of deviation；According to calculating
Drift correction spark plug 13 time of ignition function；And make spark plug 13 in current stroke α above-mentioned revised
Time of ignition（It performs）The function of igniting.Therefore, control unit 25 for example has comparison means 30 as shown in Figure 2（Calculate deviation
Function）Component 31 is corrected with time of ignition（Debugging functions）, so as to constitute engine rotational speed control apparatus.
That is, the control of the time of ignition of spark plug 13 carried out by using the engine rotational speed control apparatus, makes idling
Spin stabilization.In fig. 3 it is shown that the flow of the control for making idling spin stabilization of the engine rotational speed control apparatus
Figure.
Next, with reference to the flow chart and sequence diagram shown in Fig. 4, to making idling spin stabilization using time of ignition control
Change illustrates.
Currently, the throttle control handle of motor bike（It is not shown）Initial position is reset to, engine 1 carries out idle running.
Then, step S3 is entered from step S1, as shown in figure 4, according to the bent axle exported from crank angle sensor 22
The spark plug 12 that pulse signal detection goes out in current stroke α will light a fire before CRANK PULSES deadline T0.By the way
Once, when not being idle running, step S2 is entered, time of ignition control is carried out according to operating condition, specifically, according to
The aperture of throttle control handle（Accelerator open degree）Time of ignition control is carried out with engine speed.
Next in step s 4, compare the CRANK PULSES signal deadline T0 before the igniting will start and be based on
Setting CRANK PULSES signal expiration time value T in the current stroke α of preset rotating speed of target setting, calculates deviation（When
Between it is poor）.
Next in step s 5, the time of ignition in the current stroke α of drift correction based on calculating.That is, will point
In the case that CRANK PULSES signal deadline T0 before fire is shorter than setting CRANK PULSES signal expiration time value T, it is estimated as
The engine speed tendency lower than rotating speed of target, therefore and deviation be performed in accordance with the amendment at advanced ignition moment, increase burning
Output.On the contrary, the CRANK PULSES signal deadline T0 ratios setting CRANK PULSES signal deadline before it will light a fire
In the case of value T long, the engine speed tendency higher than rotating speed of target is estimated as, therefore be performed in accordance with postponement with deviation and light a fire
The amendment at moment reduces burning output.
By the control of the time of ignition to the spark plug 12, burning output is corrected（Step S6）.That is, before will lighting a fire
The unstable of rotating speed of bent axle 5 be instantly obtained amendment after ignition, and reflect into back to back rotary speed, therefore press down
It has made the unstable of idling rotation and idling is rotatably retained at rotating speed of target.
Therefore, always according to the CRANK PULSES signal deadline T0 before will lighting a fire（CRANK PULSES signal time）With
Setting CRANK PULSES signal expiration time value T based on the rotating speed of target setting as target（Set CRANK PULSES signal time
Value）Deviation, control the time of ignition of the spark plug 12 of control object in current stroke α, thus having corrected rapidly will point
The rotating speed of bent axle 5 before fire it is unstable.
Therefore, even if the engine speed of single-cylinder four-stroke engine has larger unstable, its immediate stability can also be made
In rotating speed of target.Moreover, stabilized control is only by using the CRANK PULSES signal time just detected and based on target
The simple control of the deviation of the setting CRANK PULSES signal time value of rotating speed setting can just be completed.Particularly in control spark plug
When 12 time of ignition, it can effectively stablize engine speed.
Fig. 5 and Fig. 6 shows the 2nd embodiment of the present invention.Present embodiment is not the time of ignition progress to spark plug
Control, but utilize makes engine peed stable in rotating speed of target to the control of injector.
It is controlled as follows：Detect the CRANK PULSES letter before the injector 15 of current stroke α will perform
Number time, which is, for example, the song before suction stroke will start shown in single dotted broken line in Fig. 4
Axis pulse signal deadline T1, as shown in the block diagram of Fig. 5 and the flow chart of Fig. 6, comparison is as advance based on rotating speed of target
The setting pulse signal expiration time value T of the setting CRANK PULSES signal time value of setting simultaneously calculates deviation, based on the inclined of calculating
Difference come correct injector 15 injection fuel injection amount, reach rotating speed of target so as to control into.
That is, the CRANK PULSES signal deadline T1 ratios setting CRANK PULSES signal expiration time value before it will spray
In the case that T is short, the engine speed tendency lower than rotating speed of target is estimated as, therefore, and deviation accordingly increases injector 15
Amount of fuel injected, increase burning output.On the contrary, the CRANK PULSES signal deadline T1 ratios setting before it will spray
In the case of CRANK PULSES signal expiration time value T long, the engine speed tendency higher than rotating speed of target is estimated as, therefore, with
Deviation accordingly reduces the amount of fuel injected of injector 15, reduces burning output.
In this way, identically with the 1st embodiment, engine peed stable can be made in rotating speed of target.
Fig. 7 and Fig. 8 shows the 3rd embodiment of the present invention.Present embodiment is not the time of ignition or spray to spark plug
The fuel injection amount of emitter is controlled, but utilizing makes the control of inhaled air volume engine peed stable to turn in target
Speed.
It is controlled as follows：CRANK PULSES signal before detecting that the suction stroke of current stroke α will be performed
Time, the CRANK PULSES signal time are, for example, the bent axle before suction stroke will start shown in single dotted broken line in Fig. 4
Pulse signal deadline T1, as shown in the block diagram of Fig. 7 and the flow chart of Fig. 8, comparison is used as and is set in advance based on rotating speed of target
The setting pulse signal expiration time value T of fixed setting CRANK PULSES signal time value simultaneously calculates deviation, the deviation based on calculating
Control the aperture of the idle controller valve 17a of air throttle 17, correct through the inhaled air volume of valve 17a, so as to control into up to
To rotating speed of target.
That is, the CRANK PULSES signal deadline T1 ratios before air inlet are set CRANK PULSES signal expiration time value
In the case that T is short, the engine speed tendency lower than rotating speed of target is estimated as, therefore, and deviation accordingly increases idle speed control
The aperture of valve 17a increases burning output.On the contrary, the CRANK PULSES signal deadline T1 ratios before air inlet are set
In the case of CRANK PULSES signal expiration time value T long, the engine speed tendency higher than rotating speed of target is estimated as, therefore, with
Deviation accordingly reduces the aperture of idle speed control valve 17a, reduces burning output.
In this way, identically with the 1st, 2 embodiments, it can also make engine peed stable in rotating speed of target.It can also fit
When the 1st~3 embodiment of combination.
But in Fig. 5~Fig. 8, pair part identical with the 1st embodiment marks identical label, and omits its and say
It is bright.
In addition, in above-mentioned 1st~3 embodiment, the CRANK PULSES signal cut-off for the tight front that contrasting detection goes out is enumerated
Time and setting CRANK PULSES signal expiration time value（It is set based on rotating speed of target）Example, but not limited to this, as single in Fig. 4
Shown in chain-dotted line like that, it detects that the igniting of current stroke, fuel injection, air inlet sucking will be carried out（Control object）Before
CRANK PULSES signal turn-on time T3 or CRANK PULSES signal turn-on time T4（It is CRANK PULSES signal time）, according to base
In the setting CRANK PULSES signal on-time value of rotating speed of target setting（Set CRANK PULSES signal time value）Deviation to control
Object-based device processed（Time of ignition, fuel injection amount, inhaled air volume etc.）It is controlled, is played and above-mentioned 1st~3 embodiment
Identical effect.
In addition, the present invention is not limited to the above embodiment, it can also be without departing from the spirit and scope of the invention
Various changes are carried out to implement.For example, in the present embodiment, as rotating speed of target as an example of idling speed into ranks, but
As long as the rotating speed of target set in engine operating, however it is not limited to this.
Claims (4)
1. a kind of engine rotational speed control apparatus of internal combustion engine, which is characterized in that
The engine rotational speed control apparatus has：
Crank angle sensor, in the rotation of bent axle that the piston of the detection of defined angle and single-cylinder four-stroke engine links
Position simultaneously generates CRANK PULSES signal；With
Control unit, the CRANK PULSES signal based on the crank angle sensor control the burning of the single-cylinder four-stroke engine
Control device,
In the control unit,
The terminal of the CRANK PULSES signal is played into one turn of region as a stroke, and will be according to described in a stroke
The stroke of combustion control equipment work as current stroke,
And with based on idling speed of the single-cylinder engine under idle running it is preset, as current stroke
Control object combustion control equipment will perform before setting CRANK PULSES signal time value,
The control unit is configured to：
In the single-cylinder engine idle running, the Combustion System in the control object as the current stroke is detected
Equipment will perform before with it is described setting CRANK PULSES signal time value it is corresponding at the time of CRANK PULSES signal time,
Based on the CRANK PULSES signal time value before the combustion control equipment will perform detected relative to
The deviation of the preset setting CRANK PULSES signal time value, controlling becomes in the single-cylinder engine idle running
The execution of the combustion control equipment of the control object of the current stroke.
2. the engine rotational speed control apparatus of internal combustion engine according to claim 1, which is characterized in that
The combustion control equipment is spark plug, and the time of ignition of the spark plug is controlled.
3. the engine rotational speed control apparatus of internal combustion engine according to claim 1, which is characterized in that
The combustion control equipment is the injector for spraying fuel, and the fuel injection amount of the injector is controlled.
4. the engine rotational speed control apparatus of internal combustion engine according to claim 1, which is characterized in that
The combustion control equipment is the air throttle controlled sucking air, and the inhaled air volume of the air throttle is controlled
System.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-045694 | 2013-03-07 | ||
| JPJP2013-045694 | 2013-03-07 | ||
| JP2013045694A JP6157882B2 (en) | 2013-03-07 | 2013-03-07 | Engine speed control device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033265A CN104033265A (en) | 2014-09-10 |
| CN104033265B true CN104033265B (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410080871.9A Active CN104033265B (en) | 2013-03-07 | 2014-03-06 | The engine rotational speed control apparatus of internal combustion engine |
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| JP (1) | JP6157882B2 (en) |
| CN (1) | CN104033265B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001254646A (en) * | 2000-03-09 | 2001-09-21 | Toyota Motor Corp | Idling stop control device of internal combustion engine and vehicle furnished with it |
| JP2005256616A (en) * | 2004-03-09 | 2005-09-22 | Honda Motor Co Ltd | Method for angle correction of rotation angle detector |
| CN101498250A (en) * | 2008-01-31 | 2009-08-05 | 本田技研工业株式会社 | Operation control apparatus of internal combustion engine |
| CN102418644A (en) * | 2010-09-28 | 2012-04-18 | 本田技研工业株式会社 | Engine control device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718341B2 (en) * | 1986-06-26 | 1995-03-01 | 本田技研工業株式会社 | Exhaust timing control device for 2-cycle engine |
| JP2627153B2 (en) * | 1987-08-28 | 1997-07-02 | 富士重工業株式会社 | Ignition timing control device |
| JP2002317741A (en) * | 2001-04-24 | 2002-10-31 | Mikuni Corp | Ignition timing control device for single cylinder four- cycle engine |
| JP5283446B2 (en) * | 2008-08-04 | 2013-09-04 | ヤマハ発動機株式会社 | FUEL INJECTION CONTROL DEVICE AND VEHICLE HAVING THE SAME |
-
2013
- 2013-03-07 JP JP2013045694A patent/JP6157882B2/en active Active
-
2014
- 2014-03-06 CN CN201410080871.9A patent/CN104033265B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001254646A (en) * | 2000-03-09 | 2001-09-21 | Toyota Motor Corp | Idling stop control device of internal combustion engine and vehicle furnished with it |
| JP2005256616A (en) * | 2004-03-09 | 2005-09-22 | Honda Motor Co Ltd | Method for angle correction of rotation angle detector |
| CN101498250A (en) * | 2008-01-31 | 2009-08-05 | 本田技研工业株式会社 | Operation control apparatus of internal combustion engine |
| CN102418644A (en) * | 2010-09-28 | 2012-04-18 | 本田技研工业株式会社 | Engine control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033265A (en) | 2014-09-10 |
| JP2014173470A (en) | 2014-09-22 |
| JP6157882B2 (en) | 2017-07-05 |
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