CN106536909B - The starting control device of engine - Google Patents
The starting control device of engine Download PDFInfo
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- CN106536909B CN106536909B CN201580040311.3A CN201580040311A CN106536909B CN 106536909 B CN106536909 B CN 106536909B CN 201580040311 A CN201580040311 A CN 201580040311A CN 106536909 B CN106536909 B CN 106536909B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Target ignition period is determined in order to rear during the connection of measurement crank angle signal, magnetic resistance distribution head protrusion (7a) on flywheel (7) is set in advance side, on this basis, Ton during lighting a fire at the beginning of crank rotation starts for the first time is the connection based on crank angle signal(n‑2)Measured value determine target ignition period (=igniting object time Ttgt) (the 1st start-up mode), Toff during the 2nd later igniting is the shutdown in the swing circle before being enclosed based on rotation 2(n‑2)And Ton during connecting(n‑2)And Toff during the shutdown in this swing circle(n)Measured value, calculate Ton during the connection in this swing circle(n), and based on Ton during the connection(n), determine target ignition period (the 2nd start-up mode).
Description
Technical field
The present invention relates to a kind of starting control devices of engine, more particularly, to a kind of opening for engine as described below
Dynamic control device, based on the crank angle signal that the rotation with engine synchronously outputs, determines target when starting engine
Crankangle, and based on identified target crank angle, make the control equipment work such as spark plug and injector.
Background technique
For fuel consumption efficiency and the exhaust gas properties etc. for improving engine, it is desirable that the various controls for engine are realized
Optimization, for example, it is desired to which executing in the best opportunity makes plug ignition according to ignition timing control, or according to fuel injection control
Injector is set to spray fuel.Thus, for example being generated synchronous with the rotation of the crank axle of engine according to the technology of patent document 1
The crank angle signal that ground changes is based on the crank angle signal, determines target crank angle of the target ignition period as engine, into
The control of row ignition timing.
It is explained in more detail, according to the technology of patent document 1, on the periphery of engine flywheel, across special angle area
Domain forms magnetic resistance dispensing head (reluctor) protrusion and the flywheel configures crank angle sensor opposite to each other.From crank angle sensor
The crank angle signal of output is wavy in rectangle, and with 1 circle of engine rotation for 1 period, the advance side of compression top center is set
During connection for corresponding special angle region, during other angles region is set as shutdown, the two is alternately switched.Another party
Face, such as target ignition period is calculated based on engine rotary speed and throttle opening etc., specifically, calculating from crank angle signal
Connection during at the beginning of crankangle until (base position) to target ignition period.
In engine rotary course, during the shutdown in swing circle before being enclosed according to engine rotation 2 and then
During shutdown during connection and in this swing circle, during calculating the connection in this swing circle.Then, it is based on
During the connection of reckoning, time conversion is carried out to the crankangle until target ignition period, by the target in this swing circle
Ignition timing is determined as time (time needed for from base position to target ignition period), and is based on target ignition obtained
Period makes spark plug work.
The reason of calculating during the connection of this swing circle is that intrinsic motivation can reach target ignition during connection
Period, therefore, if according to measure connect during after determine the sequence in target ignition period again, spark plug can have little time work
Make.In addition, referring to rotation 2 enclose before connection during and shutdown during the reason of be, four-stroke engine with 720 DEG C of A repeatedly
Ground carries out burn cycle, and the rotation variation of 2 circle front engine of rotation can reproduce in this swing circle, therefore, Ke Yigen
During being connected according to these and the ratio between during shutdown and during this shutdown, during the connection for calculating this.
Existing technical literature
Patent document
Patent document 1: Japanese Patent Laid-Open 2002-317741 bulletin
Summary of the invention
The technical problems to be solved by the invention
The connection phase according to the technology of above patent document 1, in order to determine target ignition period, before needing 2 circle of rotation
Between and shutdown during information.There is no problem in conventional engine operation process for this, but when starting engine, if not
It is that just can not obtain the information during connecting and during shutdown after starting crank and having rotated 2 circles, naturally also can not just start
Ignition timing control.The delay that the delay for starting ignition timing control will lead to the delay of engine start or even vehicle sets out,
Therefore, being intended to one kind all the time can be with the essence countermeasure of quick start engine.
The present invention completes in order to solve the above problem, its purpose is to provide a kind of starting control device of engine,
When starting engine, since crank rotation at the beginning of just can be synchronized with the rotation of engine, control spark plug and injector etc.
Equipment work, so as to realize the quick start of engine.
Technical scheme applied to solve the technical problem
To achieve the goals above, the starting control device of engine of the invention is characterized in that having: signal output is single
Member, output crank angle signal, the crank angle signal are enclosed with engine rotation 1 for 1 period, so that being set in advance in compression
The 2nd of during 1st output level corresponding to the special angle region of the advance side of stop and corresponding other angles region
It is alternately switched during output level；Target crank angle setup unit, with rising during the 1st output level of crank angle signal
Point or terminal corresponding to edge be benchmark position, by the control equipment for being used to make engine be synchronized with engine rotation and work
The target crank angle of work is set as the angle between base position；1st object time determination unit, measurement engine
During the 1st output level in this swing circle, based on the measured value during the 1st output level, target crank angle is set
Target crank angle set by unit carries out time conversion, determines the object time in this swing circle, as from benchmark position
Set the time of beginning；2nd object time determination unit, the 2nd output in swing circle before measuring 2 circle of engine rotation are electric
During the 2nd output level during flat and during the 1st subsequent output level and in this swing circle, based on these outputs
Measured value during level, the 1st output level during calculating the 1st output level in this swing circle, and based on reckoning
Period carries out time conversion to target crank angle set by the setup unit of target crank angle, determines in this swing circle
Object time, as the time since base position；And control unit of engine, when starting engine, from opening
In a period of beginning crank turns to until 2 circle of engine rotation, when the target based on determined by the 1st object time determination unit
Between, so that the control equipment of engine is worked, in a period of after the circle of rotation 2, based on determined by the 2nd object time determination unit
Object time makes the control equipment of engine work.
According to the control device of engine as constructed as above, until turning to 2 circle of engine rotation from beginning crank
During, the object time based on determined by the 1st object time determination unit makes the control equipment of engine work, in rotation 2
In a period of after circle, the object time based on determined by the 2nd object time determination unit makes the control equipment of engine work.
Therefore, when starting engine, since crank rotation at the beginning of, just can be synchronized with engine rotation suitable opportunity, make
Control equipment work.
About other forms, the target ignition period that selected objective target crankangle setup unit sets the spark plug of engine is made
For target crank angle, the 1st and the 2nd object time determination unit carries out time conversion to target ignition period respectively, determines this
The object time of swing circle, it is true that control unit of engine is based on the 1st and the 2nd object time determination unit institute when starting engine
The fixed object time, spark plug is made to work.
Constituted according to as above, since crank rotation at the beginning of, just can start the ignition timing control of spark plug.
About other forms, the target injection timing that selected objective target crankangle setup unit sets the injector of engine is made
For target crank angle, the 1st and the 2nd object time determination unit carries out time conversion to target injection timing respectively, determines this
The object time of swing circle, it is true that control unit of engine is based on the 1st and the 2nd object time determination unit institute when starting engine
The fixed object time, injector is made to work.
Constituted according to as above, since crank rotation at the beginning of, just can start the fuel injection control of injector.
Invention effect
According to the present invention, when starting engine, since crank rotation at the beginning of just can be synchronized with the rotation of engine, make
Spark plug and injector etc. control equipment work, so as to realize the quick start of engine.
Detailed description of the invention
Fig. 1 is the system construction drawing for indicating the starting control device of the engine of embodiment.
Fig. 2 is to indicate that the crank angle signal of corresponding magnetic resistance distribution head protrusion is generated processing and determined based on crank angle signal
The timing diagram of the processing in target ignition period.
Fig. 3 is the flow chart for the start-up mode option program for indicating that ECU is executed.
Specific embodiment
Hereinafter, being embodied as being equipped on an embodiment party of the starting control device of the engine on cart to the present invention
Formula is illustrated.
Fig. 1 is the system construction drawing for indicating the starting control device of the engine of present embodiment.
The engine 1 of present embodiment is configured to the four-cycle, single-cylinder petrol engine of capacity 50cc, is equipped on two wheels
Traveling power source is used as on vehicle.But it's not limited to that for the specification of engine 1, can arbitrarily change.
In the cylinder 3 in the cylinder block 2 for being formed in engine 1, it is slideably equipped with piston 4, piston 4 is via connecting rod
5 are connected to crank 6, and the reciprocating motion with piston 4 links, and crank 6 rotates with.In the rear end (speed changer (not shown) of crank 6
Side) flywheel 7 is installed, magnetic resistance distribution head protrusion 7a, the magnetic resistance point are formed in the predetermined angular region on the periphery of flywheel 7
It is made of with head protrusion 7a magnet, for detecting crankangle.
It is formed with air inlet 9a and exhaust outlet 9b in the cylinder head 9 being fixed in cylinder block 2, and with front end towards gas
Posture in cylinder is equipped with spark plug 10.On the inlet channel 11 for being connected to air inlet 9a, set gradually from the upstream side
There is air cleaner 12, the throttle valve 13 being opened and closed according to the throttle operation of driver, have ISCV's (idle speed control valve) 14
Bypass channel 15 and the injector 16 that fuel is sprayed towards air inlet 9a.In addition, in the exhaust passage for being connected to exhaust outlet 9b
On 17, it is provided with the three-way catalyst 18 and muffler (not shown) for purifying exhaust gas.
It is equipped intake valve 20 on air inlet 9a, exhaust valve 21 is equipped on exhaust outlet 9b.It is right by valve spring 22
These air-intaking exhaust valves 20,21 exert a force to closed side, and utilize and be synchronized with crank axle 6 in cylinder head 9 and be driven in rotation
Admission cam shaft 23 and exhaust cam shaft 24, make these air-intaking exhaust valves 20,21 open.It is being synchronized with the past of piston 4 as a result,
The regulation moment moved again, intake valve 20 and exhaust valve 21 are opened and closed, and by air inlet, compression, expansion, are vented what this 4 strokes were constituted
The burn cycle of engine 1 is worked repeatedly with the crankangle of 720 DEG C of A.
Using petrolift 26, Xiang Shangshu injector 16 supplies the fuel (gasoline) being stored in fuel tank 25.Petrolift 26
It is formed as one with injector 16, via supply hose 27 and return hose 28, is connected respectively to fuel tank 25.
If petrolift 26 works, the fuel in fuel tank 25 can be guided to petrolift 26 via supply hose 27
It is interior, and it is forced into authorized pressure, the fuel after pressurization is supplied to injector 16, and residual fuel is returned via return hose 28
It receives in fuel tank 25.It, can opening according to injector 16 thereby, it is possible to supply the fuel of authorized pressure to injector 16 always
It opens, fuel is sprayed to air inlet 9a with defined injection timing and the amount of injection.
In 1 operational process of engine, using the negative pressure generated in suction stroke with the decline of piston 4, via sky
Extraneous gas is drawn into inlet channel 11 by air cleaner 12, and according to the aperture of throttle valve 13, adjustment sucks the flow of air,
Then it is mixed with the fuel sprayed from injector 16, while during intake valve 20 is opened in the cylinder of inflow engine 1.It is connecing
It is compressed, is then lighted a fire using spark plug 10 to mixed gas near, swollen in the compression travel got off
It burns in swollen stroke, and via piston 4, rotary force is applied to crank axle 6.In next instroke, it is being vented
During valve 21 is opened, the exhaust gas after burning is discharged out of cylinder, flows through exhaust passage 17 and passes through three-way catalyst 18 and disappear
Sound device, is discharged to the outside.
Based on the control of ECU31 (control unit of engine), the burn cycle of the above engine 1 is executed.Therefore, exist
The input side of ECU31 is connected with electromagnetic pick-up (pick-up) 32 (signal output unit), throttle opening sensor 33, O2It passes
The various sensor classes such as sensor 34 and water temperature sensor 35, electromagnetic pick-up 32 and above-mentioned flywheel 7 configure opposite to each other, and output is same
It walks in the detection signal of magnetic resistance distribution head protrusion 7a, throttle opening sensor 33 is used to detect the aperture of throttle valve 13, O2Sensing
Device 34 is disposed in exhaust passage 17, according to the exhaust centered on stoichiometry (stoichiometry) (chemically correct fuel)
The variation of air-fuel ratio, makes to export and changes steppedly, and water temperature sensor 35 is used to detect the coolant water temperature Tw of engine 1.This
Outside, above-mentioned ISCV14, injector 16 (control equipment), petrolift 26 and for driving fire are connected in the outlet side of ECU31
The various equipment classes such as the igniter 36 of flower plug 10 (control equipment).
ECU31 is based on these sensor informations, executes for driving the fuel injection control of injector 16, for driving fire
The various controls such as the ignition timing control of flower plug 10, run engine 1.
For example, as fuel injection control, ECU31 starts based on the detection signal according to electromagnetic pick-up 32 is calculated
The machine rotation speed Ne and throttle opening θ th etc. detected by throttling sensor 33, determine target fuel injection amount, and into
The regulation moment of gas stroke drives injector 16, executes fuel injection.
In addition, controlling as ignition timing, ECU31 is based on engine rotary speed Ne and throttle opening θ th etc., determines mesh
Mark ignition timing, while the wavy crank angle signal of rectangle generated based on the detection signal according to electromagnetic pick-up 32, determining pair
Should be at the time of target ignition period, drive ignition device 36 makes spark plug 10 light a fire (control unit of engine).
Hereinafter, be described in detail it is this by ECU31 execute, from generate crank angle signal to spark plug 10 ignition timing control
It is made as processing only.
Fig. 2 is to indicate the generation processing of the crank angle signal of corresponding magnetic resistance distribution head protrusion 7a and based on crank angle signal
Determine the timing diagram of the processing in target ignition period.
On flywheel 7, the magnetic resistance for being formed with present embodiment across the special angle region of 60 DEG C of A distributes head protrusion 7a.
If the end of the magnetic resistance distribution head protrusion 7a on the direction of rotation of flywheel 7 is set as starting point, the magnetic on direction will be reversely rotated
The end of resistance distribution head protrusion 7a is set as terminal, then the starting point shifts to an earlier date the crankangle of 80 DEG C of sides A in the top dead centre than engine 1
Place corresponds to electromagnetic pick-up 32, and terminal corresponds to electromagnetic pick-up 32 at the crankangle for shifting to an earlier date 20 DEG C of sides A than top dead centre.
Electromagnetic pick-up 32 has the property that, i.e., the contact by between magnet, separate and cause flux change, from
And output is made to change.Therefore, from electromagnetic pick-up 32 when the starting point and terminal for distributing head protrusion 7a with magnetic resistance are to correspondence
The detection signal of output will be changed in needle pattern.It is more specifically illustrated as, is corresponding to the starting point of magnetic resistance distribution head protrusion 7a
The BTDC20 DEG C of A of 80 DEG C of A of BTDC (Before Top Dead Center, top dead centre before) and corresponding subsequent terminal, detection
Signal changes respectively, and the variation of these detection signals is repeated every 360 DEG C of A.
As described above, the detection signal that electromagnetic pick-up 32 exports is input in ECU31, the lock built in ECU31 use
It deposits circuit 31a (signal output unit), generates crank angle signal.That is, latch cicuit 31a is corresponding to magnetic resistance dispensing head
At the variation moment of the detection signal of the starting point of protrusion 7a, increase crank angle signal and remain on-state (of the invention the 1st
During output level, during hereinafter referred to as connecting), when corresponding to the variation of terminal of subsequent magnetic resistance distribution head protrusion 7a
Carve, decline crank angle signal and remain off state (during the 2nd output level of the invention, hereinafter referred to as turn off the phase
Between).The processing is executed by latch cicuit 31a repeatedly, is 1 period (during shutdown+connect during) with 360 DEG C of A, is generated and hair
The wavy crank angle signal of the rectangle that the crankangle of motivation 1 synchronously changes.
Then, ignition timing control is executed as the technology of patent document 1 based on crank angle signal, if in order to push away
During connection before being enclosed during calculating the connection of this swing circle and referring to rotation 2 and during turning off, it may appear that engine start
The problem of delay.
In view of this problem, present inventor will fly the study found that if compared to regular situation (such as patent document 1)
Magnetic resistance distribution head protrusion 7a on wheel 7 is set to more by advance side, is made during the connection of crank angle signal to advance angle lateral deviation
It moves, then may insure to have ample time after during measuring connection for determining target ignition period.The magnetic resistance of above-mentioned formation
The special angle region of distribution head protrusion 7a is namely based on the cognition and obtains.But this method is according only to during connection
Measurement result carries out time conversion to target ignition period, and therefore, (measurement closing position and igniting are powered and close when delay angle is lighted a fire
It is disconnected mutually to separate) it is compared with the method during connection and during shutdown before existing 2 circle of reflection rotation, it is difficult to it carries out accurate
Ignition timing control.
Therefore, only in a period of at the beginning of since crank rotation until 2 circle of the rotation of engine 1 (corresponding to light a fire for the first time)
Execute ignition timing control (the 1st object time determination unit of the invention, hereinafter referred to as the 1st start-up mode), Zhi Houzhuan
To execute ignition timing control (the 2nd object time determination unit of the invention, the hereinafter referred to as the 2nd starting based on existing method
Mode).
In addition, the best special angle region of magnetic resistance distribution head protrusion 7a is from 80 DEG C of above-mentioned BTDC, 20 DEG C of A to BTDC
A, but not limited to this, as long as in the range of the starting point of magnetic resistance distribution head protrusion 7a is set in 90~60 DEG C of A of BTDC, it will
The terminal of magnetic resistance distribution head protrusion 7a is set in the range of 20~15 DEG C of A of BTDC.
Hereinafter, based on the above cognition, control when for the engine start executed by ECU31 is illustrated.
Fig. 3 be indicate ECU31 execute start-up mode option program flow chart, ECU31 vehicle ignition switch into
Gone connection operation when, with it is defined control be spaced apart begin the program.
Firstly, if it is No (no), temporarily terminating journey in the crank rotation whether that step S2 judges engine 1
Sequence.If crank rotation starts, so that being judged as Yes (YES) in step s 2, then S4 is entered step, whether judge engine 1
2 circles are rotated.If 2 circle of rotation not yet, is judged as No, and selects the 1st start-up mode in step s 6, then terminate journey
Sequence；If engine 1 has rotated 2 circles, the judgement of step S4 is Yes, then enters step S8, select the 2nd start-up mode, then
Terminate program.
About selecting start-up mode by ECU31 above, and holding for ignition timing control is executed when starting engine accordingly
Row situation, the timing diagram based on Fig. 2, is further illustrated.
Shown in Fig. 2 is the case where crank rotation of the engine 1 between expansion stroke and instroke starts, in the song
At the beginning of handle rotation starts, according to the program of Fig. 3, the 1st start-up mode is selected.
As described above, crank angle signal is to change in 1 period with 360 DEG C of A, firstly, measurement stops from exhaust
Start during shutdown before point to end during the shutdown being located in compression travel (to start during=connection), as the rotation
Swing circle in shutdown during Toff(n-2).Then, connecing to before being located at compression top center measurement is during connection
Logical period terminates, as Ton during the connection in the swing circle of the rotation(n-2).In addition, during these measured values indicate shutdown
Toff(n-2)And Ton during connecting(n-2)Duration (Ton during aftermentioned shutdown during this(n)And Ton during connecting(n)
It is identical).
At the same time, the Ton during connection(n-2)While beginning, start to be powered to ignition coil using igniter 36, base
In preset starting Ton during target ignition period and connection(n-2), determine target ignition period, be based on the target
Ignition timing, ignition coil energization terminate, and spark plug 10 is ignited.At the regulation moment of the suction stroke prior to the igniting, from
Injector 16 sprays fuel, is pressed in cylinder together in subsequent compression travel the air of the fuel of injection and sucking
Contracting, therefore, igniting can make to burn in expansion stroke.
At this point, executing the processing for determining target ignition period using the 1st start-up mode according to the following steps.Firstly, for
Target ignition period, with Ton during connecting(n-2)At the beginning of on the basis of (rising edge), calculate from the base position to target
(target crank angle is set the crankangle (target crank angle of the invention, hereinafter referred to as igniting target crank angle Dtgt) of ignition timing
Order member).In addition, in the present embodiment, igniting target crank angle Dtgt when in advance in ECU31 by engine start is deposited
Storage is used as fixed value, it is not limited to this, such as can also be can be changed based on the coolant water temperature Tw or cell voltage of engine 1
Ground setting igniting target crank angle Dtgt (target crank angle setup unit).
Ton during the connection measured in the manner described above(n-2)It is equivalent to (60 DEG C of angular regions of magnetic resistance distribution head protrusion 7a
A crankangle) makes crank 6 rotate Ton during the crankangle needs to connect(n-2).Therefore, head protrusion 7a is distributed with these magnetic resistance
Special angle region and connect during Ton(n-2)Relationship be index, to igniting target crank angle Dtgt carry out the time change
It calculates, time needed for from base position to target ignition period (object time of the invention, hereinafter referred to as point can be calculated
Fiery object time Ttgt).Then, at the time of from target ignition period of the base position after the object time Ttgt that lights a fire,
The energization for terminating ignition coil, to light a fire.
In addition, base position be not necessarily to for connect during at the beginning of, can also with connect during at the end of
Carving (failing edge) is benchmark position.
As described above, executing the igniting for the first time at the beginning of crank rotation starts, the 2nd igniting is after 2 circle of the rotation of engine 1
It is executed before compression top center in the swing circle of (after 720 DEG C of A).
At this point, according to the 2nd start-up mode of procedure selection of Fig. 3, and execute utilize the 2nd start-up mode according to the following steps
Determine the processing in target ignition period.
Firstly, except Toff during the shutdown measured in the swing circle before the circle of rotation 2(n-2)And during connecting
Ton(n-2), also to measure Toff during the shutdown in this swing circle(n).Based on these measured values (Toff(n-2)、Ton(n-2)、
Toff(n)), and (1) calculates Ton during the connection in this swing circle according to the following formula(n)。
Ton(n)=Toff(n)·Ton(n-2)/Toff(n-2)……(1)
Then it as above-mentioned 1st start-up mode, with the special angle region of magnetic resistance distribution head protrusion 7a and connects the phase
Between Ton(n)Relationship be index, to igniting target crank angle Dtgt carry out time conversion, can calculate from base position to mesh
Time needed for marking ignition timing (igniting object time Ttgt).It is not absolutely required to adopt by igniting target crank angle Dtgt at this time
With value identical with the 1st start-up mode, other preset fixed values or the cooling water based on engine 1 can also be used
The value that warm Tw or cell voltage calculate is as igniting target crank angle Dtgt (target crank angle setup unit).In addition, about
The detailed processing that igniting object time Ttgt is calculated above according to the 2nd start-up mode, please refers to patent document 1.
Later, continue as the crank of engine 1 rotates, being executed repeatedly with the interval of 720 DEG C of A makes the injection combustion of injector 16
Material and the target ignition period based on determined by the 2nd start-up mode of spark plug 10 (=igniting object time Ttgt) carry out a little
Fire.
Then, it if engine rotary speed Ne is more than preset complete explosion judgment value, is regarded as engine 1 and opens
Dynamic to be completed, in order to continue to run, ECU31 is transferred to operational mode.Feelings when in this operating mode, different from starting engine
Condition is that the operating status (for example, engine rotary speed Ne, throttle opening θ th) based on engine 1 calculates igniting target crank
Angle Dtgt is as target ignition period, and still, carrying out time conversion about the target crank angle Dtgt that will light a fire is when lighting a fire target
Between Ttgt processing, executed according to the step identical with above-mentioned 2nd start-up mode.
As described above, the starting control device of engine 1 according to the present embodiment, in order in measurement crankangle letter
Number connection during after determine target ignition period, by flywheel 7 magnetic resistance distribution head protrusion 7a be set in advance side, herein
On the basis of, crank rotates Ton during lighting a fire at the beginning of starting for the first time is the connection based on crank angle signal(n-2)Measured value determine
Target ignition period (the 1st start-up mode), the 2nd later igniting are the shutdown phases in the swing circle before being enclosed based on rotation 2
Between Toff(n-2)And Ton during connecting(n-2)And Toff during the shutdown in this swing circle(n)Each measured value, calculate this
Ton during connection in secondary swing circle(n), and Ton during the connection based on reckoning(n), determine that target ignition period, (the 2nd opened
Dynamic model formula).
Therefore, when starting engine 1, since crank rotation at the beginning of, just can be in the conjunction for the rotation for being synchronized with engine 1
On suitable opportunity, start the ignition timing control of spark plug 10, and then can be realized the quick start of engine.
In addition, be embodied as in present embodiment when starting engine for determining the processing in target ignition period, but
It is that application is not limited in ignition timing control, such as also can be applied to fuel injection control.Moreover, being rotated in crank
It, can also Ton during the connection based on crank angle signal in fuel injection for the first time (suction stroke) at the beginning of beginning(n-2)Measurement
It is worth and determines target injection timing (=injection target time Ttgt) (the 1st object time determination unit), may then based on the mesh
Injection timing is marked, fuel (control unit of engine) is sprayed using injector 16 for the first time, does not do repeated explanation and embodiment party herein
Formula is the same, can rapidly start fuel injection control, starts engine 1 as early as possible.
The explanation of embodiment ends here, but form of the invention is not limited in the embodiment.For example, above-mentioned reality
The mode of applying is embodied as being equipped on the starting control device of the engine 1 on cart, but the carrying object of engine 1 and not only
It is limited to this.Such as it can also be embodied as being equipped on the starting control device of tricycle, engine 1 on generator.On in addition,
Stating embodiment is that the case where being applied to singlecylinderengine 1, also can be applied to multiple cylinder engine.
In addition, above embodiment uses the latch cicuit 31a of ECU31 and electromagnetic pick-up 32 single as signal output
It is not limited to this, can arbitrarily change, such as well-known Photo Interrupter (photo also can be used in member
interrupter)。
Label declaration
1 engine
10 spark plugs (control equipment)
16 injectors 16 (control equipment)
31 ECU (target crank angle setup unit, the 1st object time determination unit, the 2nd object time determination unit, hair
Motivation control unit)
31a latch cicuit (signal output unit)
32 electromagnetic pick-ups (signal output unit)
Claims (3)
1. a kind of starting control device of engine, which is characterized in that have:
Signal output unit, output crank angle signal, the crank angle signal are enclosed with engine rotation 1 for 1 period, so that in advance
During being first set in the 1st output level corresponding to the special angle region of the advance side of compression top center and correspond to other
It is alternately switched during 2nd output level of angular regions；
Target crank angle setup unit, with the beginning or end institute during the 1st output level of the crank angle signal
Corresponding edge is benchmark position, and the control equipment for being used to make the engine is synchronized with the rotation of the engine and is worked
Target crank angle is set as the angle between the base position；
1st object time determination unit measures the 1st output level phase in this swing circle of the engine
Between, based on the measured value during the 1st output level, to target crank angle set by the setup unit of the target crank angle into
Row time conversion determines the object time in this swing circle, as the time since the base position；
2nd object time determination unit, the 2nd output electricity in swing circle before measuring 2 circle of engine rotation
During the 2nd output level during flat and during the 1st subsequent output level and in this swing circle, based on these outputs
Measured value during level, the 1st output electricity during calculating the 1st output level in this swing circle, and based on reckoning
During flat, time conversion is carried out to target crank angle set by the setup unit of the target crank angle, determines this revolution
The interim object time, as the time since the base position；And
Control unit of engine, when starting the engine, until turning to 2 circle of engine rotation from beginning crank
In a period of, the object time based on determined by the 1st object time determination unit makes the control equipment work of the engine
Make, in a period of after the circle of rotation 2, the object time based on determined by the 2nd object time determination unit makes described start
The control equipment of machine works.
2. the starting control device of engine as described in claim 1, which is characterized in that target crank angle setup unit
Target ignition period of the spark plug of the engine is set as the target crank angle,
When the 1st object time determination unit and the 2nd object time determination unit respectively carry out the target ignition period
Between convert, determine the object time of this swing circle,
When the 1st object time determination unit described in when the control unit of engine is based on the starting engine and 2 target
Between the object time determined by determination unit, so that the spark plug is worked.
3. the starting control device of engine as claimed in claim 1 or 2, which is characterized in that the target crank angle setting
Unit sets the target injection timing of the injector of the engine as the target crank angle,
When the 1st object time determination unit and the 2nd object time determination unit respectively carry out the target injection timing
Between convert, determine the object time of this swing circle,
When the 1st object time determination unit described in when the control unit of engine is based on the starting engine and 2 target
Between the object time determined by determination unit, so that the injector is worked.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-114903 | 2014-06-03 | ||
| JP2014114903A JP6301204B2 (en) | 2014-06-03 | 2014-06-03 | Engine start control device |
| PCT/JP2015/066104 WO2015186761A1 (en) | 2014-06-03 | 2015-06-03 | Starting control device for engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106536909A CN106536909A (en) | 2017-03-22 |
| CN106536909B true CN106536909B (en) | 2019-09-20 |
Family
ID=54766829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580040311.3A Active CN106536909B (en) | 2014-06-03 | 2015-06-03 | The starting control device of engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6301204B2 (en) |
| CN (1) | CN106536909B (en) |
| WO (1) | WO2015186761A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6200481B2 (en) | 2015-11-25 | 2017-09-20 | 株式会社Ｓｕｂａｒｕ | Outside environment recognition device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05288137A (en) * | 1992-04-03 | 1993-11-02 | Fuji Heavy Ind Ltd | Method for controlling ignition timing of sequential turbo engine |
| JPH10213055A (en) * | 1997-01-30 | 1998-08-11 | Fuji Heavy Ind Ltd | Engine ignition timing controller |
| JP2002317741A (en) * | 2001-04-24 | 2002-10-31 | Mikuni Corp | Ignition timing control device for single cylinder four- cycle engine |
| CN101070793A (en) * | 2007-06-15 | 2007-11-14 | 清华大学 | Engine jet based on crankshaft absolute corner sensor and ignition control device |
| CN102410095A (en) * | 2010-09-21 | 2012-04-11 | 日立汽车系统株式会社 | Apparatus for and method of controlling variable valve timing mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58185956A (en) * | 1982-04-23 | 1983-10-29 | Yamaha Motor Co Ltd | Electronic speed controller for engine |
| JPH0252968U (en) * | 1988-10-12 | 1990-04-17 | ||
| JP3195479B2 (en) * | 1993-11-16 | 2001-08-06 | トヨタ自動車株式会社 | Fuel injection control system for diesel engine |
| JPH08326552A (en) * | 1995-05-31 | 1996-12-10 | Matsushita Electric Ind Co Ltd | Ignition timing control device for internal combustion engine |
| JPH11351113A (en) * | 1998-06-05 | 1999-12-21 | Yamaha Motor Co Ltd | Ignition timing controller for internal combustion engine |
-
2014
- 2014-06-03 JP JP2014114903A patent/JP6301204B2/en active Active
-
2015
- 2015-06-03 WO PCT/JP2015/066104 patent/WO2015186761A1/en active Application Filing
- 2015-06-03 CN CN201580040311.3A patent/CN106536909B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05288137A (en) * | 1992-04-03 | 1993-11-02 | Fuji Heavy Ind Ltd | Method for controlling ignition timing of sequential turbo engine |
| JPH10213055A (en) * | 1997-01-30 | 1998-08-11 | Fuji Heavy Ind Ltd | Engine ignition timing controller |
| JP2002317741A (en) * | 2001-04-24 | 2002-10-31 | Mikuni Corp | Ignition timing control device for single cylinder four- cycle engine |
| CN101070793A (en) * | 2007-06-15 | 2007-11-14 | 清华大学 | Engine jet based on crankshaft absolute corner sensor and ignition control device |
| CN102410095A (en) * | 2010-09-21 | 2012-04-11 | 日立汽车系统株式会社 | Apparatus for and method of controlling variable valve timing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015229929A (en) | 2015-12-21 |
| WO2015186761A1 (en) | 2015-12-10 |
| JP6301204B2 (en) | 2018-03-28 |
| CN106536909A (en) | 2017-03-22 |
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