CN101649801B - Method for controlling idling mode of engine - Google Patents
Method for controlling idling mode of engine Download PDFInfo
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- CN101649801B CN101649801B CN2008101297240A CN200810129724A CN101649801B CN 101649801 B CN101649801 B CN 101649801B CN 2008101297240 A CN2008101297240 A CN 2008101297240A CN 200810129724 A CN200810129724 A CN 200810129724A CN 101649801 B CN101649801 B CN 101649801B
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- engine
- bent axle
- controlling method
- idling mode
- projection
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Abstract
The invention provides a method for controlling an idling mode of an engine, which is suitable for the engine in the idling stop mode. The engine comprises a cylinder head, a cylinder, a piston and a crank. The ignition control method comprises the following steps: firstly, detecting the crank angle to judge the position of the piston; secondly, beginning to perform a delay ignition action when the crank is rotated positively to a first ignition angel behind an upper dead center to ensure that the positive rotation inertia force of the crank is weakened after the delayed first ignition angle each time; thirdly, opening a vent valve of the cylinder head when the positive rotation inertia force of the crank cannot overcome the upper dead center and the crank is rotated inversely; and fourthly, performing an ignition action when the crank is rotated reversely to a second ignition angle. Therefore, residual oil gas can be combusted again to meet the requirement of environmental protection.
Description
[technical field]
The invention relates to a kind of ignition control method of engine, particularly about a kind of ignition control method that is in the engine under idling flameout (idle stop) state.
[background technique]
Global warming now, atmospheric pollution and energy starved problem receive people's attention gradually; And in order to improve the problems referred to above; In the prior art, have " the engine of motor vehicle idle speed controller " that the people proposes to make the device of the engine auto extinguishing in the idling to be described below at present.
Fig. 1 is the Organization Chart of present existing engine of motor vehicle idle speed controller.See also Fig. 1, the idle speed controller shown in it is when being used for motorcycle and stopping waiting idle running, will cut the engine automatically, with the consumption that reduces gasoline and reduce the exhaust gas discharging amount.
" the engine of motor vehicle idle speed controller " that Fig. 1 disclosed IS Idle Switch tutorial light 113 and such as stops by the residual electric beacon of a storage battery 100, a main switch 101, a brake signal switch element 102, a relay 103, an enable switch 104, a starting motor 105, an engine 106, a spark plug 107, one 108, a capacitive discharge ignition (CDI) 109, a speed of a motor vehicle sensor 110, an accelerator open degree sensor 111, an engine speed sensor 112, and IS Idle Switch 114 such as stops and form.Main switch 101 electrically connects with brake signal switch element 102; Brake signal switch element 102 is electrically connected to relay 103 anodes; Relay 103 negative terminals electrically connect enable switch 104; Enable switch 104 is electrically connected to storage battery 100 negative terminals; And capacitive discharge ignition 109 is electrically connected at relay 103 positive and negative two ends, and the contact that capacitive discharge ignition 109 is electrically connected at relay 103 anodes is that the contact that capacitive discharge ignition 109 is electrically connected at relay 103 negative terminals is between relay 103 and enable switch 204 between brake signal switch element 102 and relay 103.Starting motor 105 anodes electrically connect relay 103 positive electricity outlet end, and connect engine 106 via a bent axle.
Above-mentioned existing technology can be judged the operating condition of motorcycle, the Control Engine auto extinguishing, and restart engine, so that motorcycle reduces oil consumption when stopping waiting idle running.Yet, after its engine shuts down, can residual oil gas in the cylinder of engine.This oil gas contains harmful materials such as hydrocarbon mixture and the sulphide of effumability, and oil gas can slowly be emitted to air from engine.So, will cause serious atmospheric pollution.
In addition, how much oil gas all can corrode the cylinder of engine.If the time that oil gas remains in the cylinder is too of a specified duration, will seriously corrodes cylinder, and then shorten the life-span of cylinder.In addition, the oil gas that remains in for a long time in the cylinder also can cause spark plug and cylinder head carbon distribution, so that engine is restarted difficulty, and then the power consumption of increase storage battery 100.
[summary of the invention]
In view of this, in order to solve above prior art problems, a purpose of the present invention mainly provides a kind of controlling method of idling mode of engine, and it can let engine when the idling flameout state, lights a fire, so that the residue oil gas in the cylinder can be burnt again.
Another object of the present invention provides a kind of controlling method of idling mode of engine, and it can increase the life-span of cylinder, improves the problem of spark plug and cylinder carbon distribution simultaneously.
The technological means that addresses the above problem proposed by the invention is: the present invention is the controlling method that proposes a kind of idling mode of engine, and it is to be applicable to an engine that is in the idling flameout state.This engine comprises the bent axle of a cylinder head, a cylinder, a piston and an interlock, and the controlling method of above-mentioned idling mode of engine is following: the position when detecting crankshaft angles with the judgement piston operation.Then,, engine lights a fire when being in the idling mode of starting a cold engine with a normal ignition angle; When the hot car idling of engine, the action of lighting a fire when bent axle is just going to after top dead center first ignition angle, the inertial force that bent axle is just being changeed successively decreases after igniting action one by one because of the delay of ignition location.When bent axle is just changeing that inertial force is not enough to overcome upper dead center and when reversing, uses a back-pressure compression apparatus and open the outlet valve in the cylinder head, and when bent axle reverses to second ignition angle, carry out an igniting to move, with the residue oil gas in the combustion cylinder.
Wherein, first ignition angle of above-mentioned bent axle is to be positioned at bent axle after top dead center 5 degree; Second ignition angle of above-mentioned bent axle is bent axle before top dead center 40 degree.
Wherein, In the one flywheel assembling of an above-mentioned engine and an alternator; The rotation of flywheel and the synchronized movement of bent axle, and flywheel has a projection, and the projection head end is corresponding to second ignition angle; The projection tail end is corresponding to first ignition angle, and the step of wherein detecting position of piston comprises: the position of detecting projection.
Wherein, the position of above-mentioned projection is that the mode that sees through electromagnetic induction is detected.
Wherein, the step of above-mentioned igniting action is following: see through the electromagnetic induction between a coil and the projection, produce a negative voltage pulse signal.Then, according to the negative voltage pulse signal, make a plug ignition.
Wherein, above-mentioned engine is Carburetor engine or jet ignition engine.
The present invention proposes a kind of controlling method of idling mode of engine in addition, and it is applicable to the above-mentioned engine that is in the idling flameout state, and comprises the steps: to detect crankshaft angles to judge position of piston.Then,, engine lights a fire when being in the idling mode of starting a cold engine with a normal ignition angle; The action of lighting a fire when the bent axle clockwise direction is just going between after top dead center 5 degree～10 degree when the hot car idling of engine, the inertial force that bent axle is just being changeed successively decreases after igniting is one by one moved because of the delay of ignition location.When bent axle is just changeing that inertial force is not enough to overcome upper dead center and when reversing, uses the outlet valve that a back-pressure compression apparatus is opened cylinder head.When bent axle reverses to upper dead center between 35 degree～45 degree, carry out an igniting action, with the residue oil gas in the combustion cylinder.
In the one flywheel assembling of an above-mentioned engine and an alternator; Its flywheel has a projection; The head end of projection is corresponding to before top dead center 45 degree of bent axle, and the tail end of projection is corresponding to after top dead center 5 degree of bent axle, and the step of wherein detecting crankshaft angles comprises: the position of detecting this projection.
The position of above-mentioned projection is that the mode that sees through electromagnetic induction is detected.
It is to be that the technological means of employing the invention described above obtains useful effect:
1. the present invention is the residue oil gas in the ability combustion cylinder, to improve existing air-polluting problem.
2. the present invention can shorten residue oil gas and remains in the time in the cylinder, is corroded by oil gas to prevent cylinder, and then increases the life-span of cylinder.
3. the present invention can improve the problem of flashing plug and cylinder carbon distribution, with extending plug and cylinder the two working life, and lets engine restart smoothly, to reduce the power consumption of storage battery.
4. the present invention can also improve the combustion efficiency of engine, with the fuel consumption of minimizing engine, and then the task performance of lifting engine.
[description of drawings]
Fig. 1 is the Organization Chart for the engine of motor vehicle idle speed controller of prior art;
Fig. 2 is the schematic flow sheet for the controlling method of idling mode of engine of the present invention;
Fig. 3 is the action schematic representation for the post ignition of the embodiment of the invention;
Fig. 4 is the action schematic representation for the bent axle reverse of the embodiment of the invention;
Fig. 5 is igniting action schematic representation after the reverse of the embodiment of the invention; And
Fig. 6 is the flywheel projection of the embodiment of the invention and the detection signal schematic representation of coil.Action schematic representation for the post ignition of the embodiment of the invention.
100 storage batteries, 240 spark plugs
101 main switches, 250 cylinder heads
102 brake signal switch elements, 300 alternators
1020 left brake lever brake signals are driven 310 flywheels
Close 312 projections
1021 right brake lever brake signals are opened 3121 head ends
Close 3122 tail ends
103 relays, 320 coils
104 enable switches, 400 back-pressure compression apparatus
105 starting motor A, first ignition angle
106 engine B, second ignition angle
107 spark plug D lower dead centres
108 residual electric beacon U upper dead centers
109 capacitive discharge ignition P1 positive voltage pulse signals
110 speed of a motor vehicle sensor P2 negative voltage pulse signals
111 accelerator open degree sensor R remain oil gas
112 engine speed sensors
113 stop waiting the IS Idle Switch tutorial light
114 stop waiting IS Idle Switch
200 engines
202 spark coils
204 igniters
210 pistons
2101 connecting rods
220 bent axles
230 cylinders
232 outlet valves
Position when step S100 detects crankshaft angles with the judgement piston operation
Step S110 lights a fire with a normal ignition angle when engine is in the idling mode of starting a cold engine
The step S120 action of lighting a fire when bent axle is just going to after top dead center one first ignition angle when the hot car idling of engine
When step S130 reverses when bent axle, use the outlet valve that a back-pressure compression apparatus is opened cylinder head
When step S140 reverses to one second ignition angle when bent axle, carry out an igniting action
[embodiment]
For making content and purpose that further understanding arranged, cooperate relevant most preferred embodiment and graphic detailed description following now to method of the present invention:
Fig. 2 is the schematic flow sheet of the controlling method of idling mode of engine of the present invention, and Fig. 3 is the action schematic representation of the post ignition of the embodiment of the invention.The controlling method of idling mode of engine of the present invention is applicable to the engine 200 with idling flameout function; A bent axle 220 and a spark plug 240 that it comprises a cylinder head 250, a cylinder 230, a piston 210, is connected by a connecting rod 2101 with piston 210; Wherein cylinder head 250 has an outlet valve 232, and engine 200 is Carburetor engine or jet ignition engine.
The controlling method of idling mode of engine of the present invention is when engine 200 is in the idling flameout state, to carry out, and promptly engine 200 is flame-out, but the gross vehicle power supply do not close as yet, carries out under the state that for example key is not extracted as yet.
The device that Control Engine 200 is carried out idling flameout is a spark coil 202 and an igniter (for example being CDI) 204; Wherein spark coil 202 is to be connected between igniter 204 and the spark plug 240; And can apply voltage, so that spark plug 240 igniting to spark plug 240.Be to have the controlling wafer module in the igniter 204, come control ignition coil 202 so igniter 204 can send Ignition signal, and then 240 igniting of control spark plug.
Secondly, whether igniter 204 also can be lower than the rotating speed predefined value by the rotating speed that engine speed sensor (not illustrating) detected engine 200, and it is 2400rpm for example, and then Control Engine 200 is carried out idling flameout.Moreover whether igniter 204 more can be lower than speed of a motor vehicle predefined value by the speed of a motor vehicle that speed of a motor vehicle sensor (not illustrating) detected vehicle, and it is 3 kilometers of speed per hours for example.So, igniter 204 can judge whether vehicle remains static, and then whether decision is dangerous to avoid that driving takes place with engine 200 idling flameouts.
What deserves to be mentioned is; The igniter 204 accelerator open degree sensor (not illustrating) of can also arranging in pairs or groups, it for example is the throttle valve opening sensor on the Carburetor, or the rotation aperture of the nozzle of motorcycle; Whether be lower than aperture voltage predefined value, its for example 1 volt to detect accelerator open degree.Can make igniter 204 can judge whether the accelerator open degree of motorcycle is in upset condition like this, whether carry out idling flameout, or the engine 200 behind the idling flameout can be restarted with decision.
When engine 200 is in the idling flameout state; Carry out the controlling method of idling mode of engine of the present invention immediately; It may further comprise the steps: at first; Detecting bent axle 220 angles present position (step S100) when judging piston 210 runnings, the position of piston 210 can see through the angle of swing of bent axle 220 and detect, and then confirms whether to be positioned in piston 210 strokes a suitable ignition location.
Wherein the time just transferring example in a clockwise direction to just when running when bent axle 220, when engine is in the idling mode of starting a cold engine with a normal ignition angle light a fire (step S110); When the hot car idling of engine; When bent axle 220 was just going to one first ignition angle A, this moment, the angle of bent axle was that bent axle drives piston to back about 5 degree～10 degree through upper dead center, was preferably 5 degree; Piston 210 is the positions after just passing through a upper dead center U; And still can temporarily continue to carry out the supply of oil gas R in the cylinder head 250 of this moment, and carry out some fire action (step S120), promptly spark plug 240 is lighted a fire.
Hold above-mentioned; Because ignition angle is through being deferred to bent axle 220 through after the upper dead center U; So also can't provide bent axle 220 to come continuous service in this igniting position; But,, do blast and promote piston 210 although this bent axle 220 still continues fuel feeding, igniting through the first ignition angle A time because of the rotation inertia force of bent axle 220 still can make this bent axle 220 positive revolution circle that continues again; But continue at inertial force under the situation of forfeiture, the inertial force that is just changeing because of bent axle 220 at last at last is not enough to overcome upper dead center U and produces reverse.
Afterwards; When detecting bent axle 220 generation reverses; Back-pressure compression apparatus 400 on the application cylinder head is opened the outlet valve 232 (step S130) of cylinder head 250; Therefore the outlet valve 232 after opening can let cylinder 230 interior pressure equate with external atmospheric pressure, makes that the running of piston 210 is smooth.
And when bent axle 220 continues to reverse one second ignition angle; Be about bent axle and drive piston 35 degree～45 degree to the upper dead center U, be preferably 40 degree, carry out an igniting action; With the residue of one in this cylinder that burns oil gas, and by the outlet valve of opening 232 discharges (step S140).
The action schematic representation that please reverses with reference to the bent axle of the embodiment of the invention that Fig. 4 illustrated.In detail, the pairing ignition angle of upper dead center U is 0 degree, and the pairing ignition angle of lower dead centre D is 180 degree, so 210 positions that can move of piston are between 0 degree to 180 degree.Because the ignition angle of piston 210 when running well is before upper dead center U between 15 to 30 degree, therefore, when the igniting action is when 5 degree carry out behind upper dead center U, the thrust that the igniting action is produced piston 210 can be less than its thrust when running well.
And the thrust that piston 210 moves up is the rotation that comes from bent axle 220 inertia; Though and among above-mentioned igniting action continues to carry out, part thrust can be provided still; But, after just changeing, promptly can't make piston 210 arrive upper dead center U through several bent axle 220 because of the strength of thrust maybe be not enough.
Fig. 5 is an igniting action schematic representation after the reverse of the embodiment of the invention.Please consult Fig. 3 and Fig. 5 simultaneously; In the present embodiment; One flywheel 310 assembling of an engine 200 and an alternator (ACG) 300, the synchronized movement of the rotation of flywheel 310 and piston 210 wherein, promptly piston 210 is when mobile; Flywheel 310 also can and then rotate, and the number of turns that flywheel 310 is rotated can correspond to the position of piston 210.
Hold above-mentionedly, flywheel 310 has a projection 312, and the head end 3121 of projection 312 is corresponding to the second ignition angle B, and the tail end 3122 of projection 312 is corresponding to the first ignition angle A, and when flywheel 310 forward rotation, projection 312 also can and then move.When projection 312 during through a coil 320, projection 312 can produce electromagnetic induction with coil 320, and is the head end of induction projection 312 earlier, responds to its tail end again.Therefore, the step of the position of detecting piston 210 can be that the mode that sees through electromagnetic induction is detected.
Fig. 6 is the flywheel projection of the embodiment of the invention and the detection signal schematic representation of coil.Please consult Fig. 3 and Fig. 5 simultaneously; When projection 312 process coils 320; Electromagnetic induction between coil 320 and the projection 312 can produce a positive voltage pulse signal P1 and a negative voltage pulse signal P2, and igniter 204 can receive positive voltage pulse signal P1 and negative voltage pulse signal P2.
In sum, the present invention can be to the action of lighting a fire of the engine under the idling flameout, with the residue oil gas in the combustion cylinder.So, the present invention can let residue oil gas burn again, reducing the discharge amount of harmful material, and then improves the air-polluting problem.
Secondly, because the present invention can let residue oil gas burn again, therefore remain the time that oil gas remains in the cylinder to be able to shorten.So, the present invention can prevent that cylinder from being corroded by oil gas, and then can increase the life-span of cylinder.
Moreover oil gas remains in the time in the cylinder because the present invention can shorten residue, so the present invention can improve the problem of spark plug and cylinder carbon distribution.Therefore, the present invention can extending plug and cylinder the two working life, and lets engine restart smoothly, with the power consumption of reduction storage battery.
In addition,, and engine is restarted smoothly, so the present invention can improve the combustion efficiency of engine because the present invention can let residue oil gas burn again, reducing the fuel consumption of engine, and the task performance of lifting engine.
Though the present invention discloses as above with preferred embodiment, so it is not in order to limiting the present invention, anyly has the knack of alike art, is not breaking away from the spirit and scope of the present invention, and institute does to change with the equivalence of retouching and replaces, and still is in the scope of patent protection of the present invention.
Claims (13)
1. the controlling method of an idling mode of engine; Be to be applicable to an engine that is in the idling flameout state; This engine comprises a cylinder head, a cylinder, a piston and one and the bent axle of this piston interlock, wherein this bent axle drive one with the alternator flywheel of rotation synchronously, this flywheel has a projection; This projection has head end and tail end, it is characterized in that: the controlling method of this idling mode of engine may further comprise the steps:
Detect the position of this crankshaft angles when judging this piston operation;
, engine lights a fire when being in the idling mode of starting a cold engine with a normal ignition angle;
When the hot car idling of engine, the action of lighting a fire when this bent axle is just going to after top dead center one first ignition angle, the inertial force that this bent axle is just being changeed successively decreases under this igniting action one by one because of the delay of ignition location;
When this bent axle is just changeing that inertial force is not enough to overcome upper dead center and when reversing, uses the outlet valve that a back-pressure compression apparatus is opened this cylinder head; And
When this bent axle reverses to one second ignition angle, carry out the igniting action that ignition location shifts to an earlier date, with the residue of one in this cylinder head that burns oil gas.
2. the controlling method of idling mode of engine as claimed in claim 1 is characterized in that: this normal ignition angle drives before piston to upper dead center between 15 degree to 30 degree for this bent axle.
3. the controlling method of idling mode of engine as claimed in claim 1 is characterized in that: this first ignition angle drives 5 degree behind piston to upper dead center for this bent axle.
4. the controlling method of idling mode of engine as claimed in claim 1 is characterized in that: this second ignition angle drives 40 degree before piston to upper dead center for this bent axle.
5. the controlling method of idling mode of engine as claimed in claim 1, it is characterized in that: the head end of this projection is corresponding to this second ignition angle, and the tail end of this projection is corresponding to this first ignition angle.
6. the controlling method of idling mode of engine as claimed in claim 5, it is characterized in that: the step of detecting this crankshaft angles comprises: the position of detecting this projection.
7. the controlling method of idling mode of engine as claimed in claim 6 is characterized in that: the position of this projection is that the mode that sees through electromagnetic induction is detected.
8. the controlling method of idling mode of engine as claimed in claim 5 is characterized in that: the step of this igniting action comprises:
See through the electromagnetic induction between a coil and this projection, produce a negative voltage pulse signal; And
According to this negative voltage pulse signal, make a plug ignition.
9. the controlling method of idling mode of engine as claimed in claim 1, it is characterized in that: this engine is Carburetor engine or jet ignition engine.
10. the controlling method of idling mode of engine as claimed in claim 1; It is characterized in that; Saidly just transferring clockwise rotation to, said first ignition angle is between after top dead center 5 degree～10 degree, and said second ignition angle is between before top dead center 35 degree～45 degree.
11. the controlling method of idling mode of engine as claimed in claim 10 is characterized in that: the head end of this projection is corresponding to before top dead center 45 degree of this bent axle, and the tail end of this projection is corresponding to after top dead center 5 degree of this bent axle.
12. the controlling method of idling mode of engine as claimed in claim 11 is characterized in that: the step of detecting this crankshaft angles comprises: the position of detecting this projection.
13. the controlling method of idling mode of engine as claimed in claim 12 is characterized in that: the position of this projection is that the mode that sees through electromagnetic induction is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101297240A CN101649801B (en) | 2008-08-11 | 2008-08-11 | Method for controlling idling mode of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101297240A CN101649801B (en) | 2008-08-11 | 2008-08-11 | Method for controlling idling mode of engine |
Publications (2)
| Publication Number | Publication Date |
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| CN101649801A CN101649801A (en) | 2010-02-17 |
| CN101649801B true CN101649801B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101297240A Expired - Fee Related CN101649801B (en) | 2008-08-11 | 2008-08-11 | Method for controlling idling mode of engine |
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| Country | Link |
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| CN (1) | CN101649801B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103612633B (en) * | 2013-11-26 | 2016-03-16 | 奇瑞汽车股份有限公司 | A kind of method and apparatus controlling engine idle rotational |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001152891A (en) * | 1999-11-29 | 2001-06-05 | Hitachi Ltd | Fuel cut method of engine and fuel control device provided with the method |
| EP1384878A1 (en) * | 2002-07-22 | 2004-01-28 | Hitachi Unisia Automotive Ltd. | Control apparatus and control method of engine |
| CN1834434A (en) * | 2005-03-17 | 2006-09-20 | 株式会社日立制作所 | Control apparatus of direct injection internal combustion engine |
| CN101072938A (en) * | 2004-12-08 | 2007-11-14 | 丰田自动车株式会社 | Internal combustion engine system and internal combustion engine control method |
-
2008
- 2008-08-11 CN CN2008101297240A patent/CN101649801B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001152891A (en) * | 1999-11-29 | 2001-06-05 | Hitachi Ltd | Fuel cut method of engine and fuel control device provided with the method |
| EP1384878A1 (en) * | 2002-07-22 | 2004-01-28 | Hitachi Unisia Automotive Ltd. | Control apparatus and control method of engine |
| CN101072938A (en) * | 2004-12-08 | 2007-11-14 | 丰田自动车株式会社 | Internal combustion engine system and internal combustion engine control method |
| CN1834434A (en) * | 2005-03-17 | 2006-09-20 | 株式会社日立制作所 | Control apparatus of direct injection internal combustion engine |
Non-Patent Citations (1)
| Title |
|---|
| CNF02D41/04A 2007.11.21 |
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| CN101649801A (en) | 2010-02-17 |
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