CN100587256C - Control method for continuous ignition of gas engine - Google Patents
Control method for continuous ignition of gas engine Download PDFInfo
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- CN100587256C CN100587256C CN200810055768A CN200810055768A CN100587256C CN 100587256 C CN100587256 C CN 100587256C CN 200810055768 A CN200810055768 A CN 200810055768A CN 200810055768 A CN200810055768 A CN 200810055768A CN 100587256 C CN100587256 C CN 100587256C
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- control unit
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Abstract
The present invention relates to a gasoline motor control technology. The present invention provides a gasoline motor continuous ignition control method which comprises the steps as follows: an electronic control unit receives a gasoline motor crank shaft angle inspection signal output by a transducer; the electronic control unit judges whether a pulse signal is output to an igniting winding according to the inspection signal, a standard datum stored inside the unit and a corresponding transducer inspection signal; the electronic control unit controls the igniting winding of the gasoline motorto ignite or not ignite. The present invention improves the success ratio for first ignition greatly when the gasoline motor is started, which ensures that an engine is easier to be started and obtain best starting power performance and also ensures that the tail gas achieves the appointed exhaust standard when an automobile is started.
Description
Technical field
The present invention relates to a kind of petrolic controlling method, specifically, relate to a kind of controlling method of lighting a fire continuously in the engine start stage.
Background technique
Gasoline engine is because the ignition point of fuel (gasoline), needs the igniting action than higher reason in the running of motor.In the gasoline cylinder, mixed gas is because environment temperature constantly changes, and best air fuel ratio also changes thereupon.So control firing time well, promptly firing angle can better be controlled engine operating state, and can control the exhaust emissions of automobile well, makes it reach the emission standard of appointment.Electronic control unit has become the vital task of electronic control unit according to the different firing angle of adjusting the control motor of surrounding environment.
In the prior art and since motor before startup in the cylinder temperature low excessively, be not easy to light mixed gas in the cylinder with normal air fuel ratio.Igniting first time during startup was lost efficacy easily or can not be reached the optimum state, made motor can't normally start or start slowly.
Summary of the invention
(1) technical problem that will solve
The objective of the invention is provides a kind of controlling method of continuous ignition of gas engine at above-mentioned the deficiencies in the prior art, and this method makes petrol engine start success rate height, effective.
(2) technological scheme
For achieving the above object, the present invention adopts following technological scheme:
The controlling method of a kind of continuous ignition of gas engine of the present invention, described controlling method may further comprise the steps:
S1: the crankshaft for gasoline engine angle testing signal of electronic control unit receiving sensor output;
S2: electronic control unit judges whether to the spark coil output pulse signal according to the normal data and the respective sensor testing signal of described testing signal, the storage of this element memory;
S3: the igniting of electronic control unit controls ignition coil for gasoline engine, or misfire;
Wherein, described crank shaft angle is divided into bent axle firing angle and the non-firing angle of bent axle, and the non-firing angle of described bent axle is divided into again, and bent axle post ignition angle and bent axle are ended firing angle;
Wherein, described S2 step further comprises, output pulse signal not when output pulse signal continuously when electronic control unit receives bent axle firing angle testing signal, electronic control unit receive the non-firing angle testing signal of bent axle;
Wherein, described S2 step further comprises, continuous output pulse signal when electronic control unit receives bent axle firing angle testing signal, when the gasoline engine ignition success, the starting state sensor output signal is to electronic control unit, electronic control unit stops to the spark coil output pulse signal after receiving above-mentioned signal, spark coil needs to continue for some time after being loaded above-mentioned pulse signal, this section endurance will be passed through this electronic control unit controls, described control is that the data by the electronic control unit stored decide, search the nominal data table that is deposited with in the electronic control unit according to coolant temperature and come assignment, this nominal data table is that the test according to reality obtains, as the standard scale of data assignment.
Wherein, described S2 step further comprises, electronic control unit is not success of gasoline engine ignition during receiving bent axle firing angle testing signal, electronic control unit is ended output pulse signal, and electronic control unit continues when receiving bent axle firing angle testing signal to the spark coil output pulse signal till lighting a fire successfully next time.
Wherein, the position of described crank shaft angle is corresponding with position of piston in the petrol engine, stores normal data in described electronic control unit, and setting piston in described normal data, to be positioned at the pairing crank shaft angle of dot location be zero degree.
Wherein, the bent axle firing angle testing signal that described electronic control unit is received, it is the bent axle angle of 0～18 degree along clockwise direction, add from the anticlockwise advance angle of 0 degree, when this 0 degree is arranged on piston and is positioned at the summit a point of corresponding crank shaft angle, electronic control unit is exportable pulse signal receiving above-mentioned bent axle firing angle testing signal.
Wherein, in described electronic control unit, store bent axle post ignition angular data, described bent axle post ignition angle is before the bent axle firing angle, in the counterclockwise direction less than the crank shaft angle of 180 degree, and electronic control unit output pulse signal not in described post ignition angle.
Wherein, described advance angle is after electronic control unit receives the testing signal of respective sensor, the degree of advance data that electronic control unit obtains after above-mentioned testing signal is handled.
Wherein, described crank shaft angle is corresponding with petrolic firing time, the crank shaft angle data of handling with needs of storing in electronic control unit comprise after being converted to time data: delay time data between premature ignition zero-time data, basic ignition time data, actual ignition time data, post ignition time data, twice igniting, end data firing time.
(3) beneficial effect
The advantage and the good effect of the controlling method of continuous ignition of gas engine of the present invention are that this method has improved the success rate of the first time igniting of gasoline engine when starting greatly.Make and the easier startup of motor obtain best startup power performance.And the exhaust emissions when making automobile starting reaches the emission standard of appointment.
Description of drawings
Fig. 1 is that the electronic control unit among the present invention judges whether the schematic representation of lighting a fire according to the crank shaft angle testing signal;
Fig. 2 is the flow chart that electronic control unit is carried out continuous IGNITION CONTROL.
Embodiment
Below in conjunction with accompanying drawing, further describe the controlling method particular content of a kind of continuous ignition of gas engine of the present invention, but be not used for limiting protection scope of the present invention.
The controlling method of continuous ignition of gas engine of the present invention, described controlling method may further comprise the steps:
S1: the crankshaft for gasoline engine angle testing signal of electronic control unit receiving sensor output;
S2: electronic control unit judges whether to the spark coil output pulse signal according to the normal data and the respective sensor testing signal of described testing signal, the storage of this element memory;
S3: the igniting of electronic control unit controls ignition coil for gasoline engine, or misfire.
Wherein, described crank shaft angle is divided into bent axle firing angle and the non-firing angle of bent axle, and the non-firing angle of described bent axle is divided into again, and bent axle post ignition angle and bent axle are ended firing angle.
Wherein, described S2 step further comprises, output pulse signal not when output pulse signal continuously when electronic control unit receives bent axle firing angle testing signal, electronic control unit receive the non-firing angle testing signal of bent axle.
Wherein, described S2 step further comprises, electronic control unit sends pulse signal continuously when receiving bent axle firing angle testing signal, when the gasoline engine ignition success, the starting state sensor output signal is to electronic control unit, and electronic control unit stops to the spark coil output pulse signal after receiving above-mentioned signal.
Wherein, described S2 step further comprises, electronic control unit is not success of gasoline engine ignition during receiving bent axle firing angle testing signal, electronic control unit is ended output pulse signal, and electronic control unit continues when receiving bent axle firing angle testing signal to the spark coil output pulse signal till lighting a fire successfully next time.
Wherein, the position of described crank shaft angle is corresponding with position of piston in the petrol engine, stores normal data in described electronic control unit, and setting piston in described normal data, to be positioned at the pairing crank shaft angle of dot location be zero degree.
Wherein, the bent axle firing angle testing signal that described electronic control unit is received, be the bent axle angle of 0～18 degree along clockwise direction, add that electronic control unit is exportable pulse signal receiving above-mentioned bent axle firing angle testing signal from the anticlockwise advance angle of 0 degree.
Wherein, in described electronic control unit, store bent axle post ignition angular data, described bent axle post ignition angle is before the bent axle firing angle, in the counterclockwise direction less than 180 crank shaft angle of spending, when this 0 degree is arranged on piston and is positioned at the summit a point of corresponding crank shaft angle, electronic control unit output pulse signal not in described post ignition angle.
Wherein, described advance angle is after electronic control unit receives the testing signal of respective sensor, the degree of advance data that electronic control unit obtains after above-mentioned testing signal is handled.
Wherein, described crank shaft angle is corresponding with petrolic firing time, the crank shaft angle data of handling with needs of storing in electronic control unit comprise after being converted to time data: delay time data between premature ignition zero-time data, basic ignition time data, actual ignition time data, post ignition time data, twice igniting, end data firing time.
As shown in Figure 1, the epimere impulse line among the figure is the crank shaft angle position signal of sensor output, and the hypomere curve is the ignition pulse signal of electronic control unit output.
In the present invention, the controlling method of whole continuous ignition of gas engine comprises: crankshaft position sensor obtains the crank shaft angle testing signal, electronic control unit judges whether output pulse signal to spark coil according to the crank shaft angle testing signal, and electronic control unit is to three parts such as the control of ignition angle scope and controls firing time.The crank shaft angle testing signal basis of continuity point ignition technique scheme for this reason wherein, concrete implementation is the crank shaft angle position testing signal by the output of electronic control unit receiving sensor, data processing through electronic control unit inside, with be stored in searching of nominal data amount in the electronic control unit internal memory, send the IGNITION CONTROL pulse signal by electronic control unit.Electronic control unit is as follows to the control step of spark coil:
S1. obtain the crank shaft angle testing signal by the crankshaft for gasoline engine angle transducer, this testing signal can convert piston position signal to, i.e. the operating condition of gasoline engine, piston top dead center and piston B.D.C position shown among Fig. 11.
S2. electronic control unit is according to the data of crank shaft angle testing signal and storage, draw ignition delay time through data processing, and in electronic control unit, store this retard time, the described time be equivalent to crank shaft angle in the counterclockwise direction before ignition advance angle less than in 180 ° the crankshaft angles scope, concrete delay angle is shown among Fig. 12.
S3. electronic control unit of the present invention draws the premature ignition angular data in the independent cylinder after treatment according to the testing signal of respective sensor input and the nominal data of storing at electronic control unit.As 3 start angles that are depicted as premature ignition among Fig. 1, the scope of 9 degrees of ignition advance that to be electronic control units export after treatment according to corresponding detection signals among Fig. 1.
S4. electronic control unit begins output pulse signal, and this pulse signal is applied on the ignition coil for gasoline engine after drawing crank shaft angle unlatching igniting position data after the data processing.It shown among Fig. 14 the start position that electronic control unit begins output pulse signal.
S5. spark coil needs to continue for some time after being loaded above-mentioned pulse signal.This section endurance will be passed through this electronic control unit controls, and described control is that the data by the electronic control unit stored decide.Shown among Fig. 15, be the endurance of electronic control unit output pulse signal, the width of pulse just.
If S6. that spark coil is applied during the pulse signal in the rise time of pulse igniting is unsuccessful for electronic control unit, then begin to export behind Pulse Electric or the signal and again and end, will be through one period continuous retard time, the lower edge width time of pulse just, carry out igniting next time after this again.In retard time, continue oil spout in cylinder at this section, increase gasoline concentration in the cylinder.Easily light feasible next time.Shown among Fig. 16, be that electronic control unit sends the retard time between the pulse signal for twice, or the delay angle that misfires in the ignition range of bent axle.
S7. when reaching top dead center, the piston of motor begins to count firing angle.Because can not light a fire at any time in the cylinder, theoretic optimal ignition angle is about top dead center.So the time of implementation scope of this continuity point ignition technique scheme is the top dead center right side.Shown among Fig. 17, be the initial point position of bent axle firing angle.
S8. to begin in continuous 18 ° of crank shaft angle scopes from the initial angle position all be the firing angle of bent axle standard to bent axle, and 18 ° of angles of bent axle are the ignition suspension threshold value, and being the piston arrives atdc, to turn over 18 ° of crank shaft angle clockwise be boundary.If lighted a fire successfully before this boundary, then igniting finishes continuously, and motor enters normal state; If in the success of not lighting a fire yet of this limit positions, then continuity point ignition technique scheme terminates in this limit positions, waits to enter next circulation time, continue to carry out this continuity point ignition technique scheme, up to lighting a fire successfully.Shown among Fig. 18, be the scope at bent axle standard ignition angle.
Whole continuity point ignition method of the present invention all needs by the crankshaft angle sensor testing signal, obtain the position signal of crank shaft angle, just obtained the position signal of cylinder inner carrier in the motor indirectly, carried out each controlling unit in this technological scheme in regular turn according to this signal.
As shown in Figure 2, carry out the control flow chart of petrolic continuous ignition control method for the present invention.Begin to carry out the technical program, electronic control unit at first carries out engine operating status to be differentiated, and promptly motor is in starting state.Judge that then whether coolant temperature is less than the coolant temperature boundary of using present technique.Judge then whether extra voltage is 0.Electronic control unit begins to carry out the continuous IGNITION CONTROL technological scheme of the present invention after satisfying these three judgements, boolean's Data Identification amount assignment that the multiple spot fire is handled in electronic control unit is 1, expression multiple spot ignition method is activated, and promptly begins to carry out present technique this moment.With the cell voltage is foundation, comes assignment retard time for multiple ignition by the timer on the single-chip microcomputer.Endurance of handling twice spark coil load time searches the nominal data table that is deposited with on the single-chip microcomputer according to coolant temperature and comes assignment, and this nominal data table is that the test according to reality obtains, as the standard scale of data assignment.Endurance according to the multiple spot fire time-delay that obtains above and twice ignition ring loading obtains the pulse data value afterwards.Execution through above control and this technological scheme of correction back end.If three criterions in beginning all do not have to satisfy, boolean's Data Identification amount assignment of then the multiple spot fire being handled in electronic control unit is 0, expression fails to meet the requirements and opens the multiple spot ignition technique, finish the processing of present technique then, or when controlling motor, skip present technique at electronic control unit and handle.
If whole process mid-point pyrogene merit then finishes this continuous IGNITION CONTROL technological scheme; If, then re-execute this control technique scheme, up to lighting a fire successfully in the failure of whole process mid-point fire.
More than be preferred forms of the present invention, according to content disclosed by the invention, some identical, replacement schemes that those of ordinary skill in the art can expect apparently all should fall into the scope of protection of the invention.
Claims (8)
1, a kind of controlling method of continuous ignition of gas engine is characterized in that, described controlling method may further comprise the steps:
S1: the crankshaft for gasoline engine angle testing signal of electronic control unit receiving sensor output;
S2: electronic control unit judges whether to the spark coil output pulse signal according to the normal data and the respective sensor testing signal of described testing signal, the storage of this element memory;
S3: the igniting of electronic control unit controls ignition coil for gasoline engine, or misfire;
Described crank shaft angle is divided into bent axle firing angle and the non-firing angle of bent axle, and the non-firing angle of described bent axle is divided into bent axle post ignition angle again and bent axle is ended firing angle;
Described S2 step further comprises, when electronic control unit receives bent axle firing angle testing signal to the continuous output pulse signal of spark coil, output pulse signal not when electronic control unit receives the non-firing angle testing signal of bent axle, spark coil needs to continue for some time after being loaded above-mentioned pulse signal, this section endurance will be passed through this electronic control unit controls, described control is that the data by the electronic control unit stored decide, search the nominal data table that is deposited with in the electronic control unit according to coolant temperature and come assignment, this nominal data table is that the test according to reality obtains, as the standard scale of data assignment.
2, the controlling method of continuous ignition of gas engine as claimed in claim 1, it is characterized in that, described S2 step further comprises, continuous output pulse signal when electronic control unit receives bent axle firing angle testing signal, when the gasoline engine ignition success, the starting state sensor output signal is to electronic control unit, and electronic control unit stops to the spark coil output pulse signal after receiving above-mentioned signal.
3, the controlling method of continuous ignition of gas engine as claimed in claim 1, it is characterized in that, described S2 step further comprises, electronic control unit is success of gasoline engine ignition during continuous output pulse signal, electronic control unit is ended output pulse signal, and electronic control unit continues when receiving bent axle firing angle testing signal to the spark coil output pulse signal till lighting a fire successfully next time.
4, the controlling method of continuous ignition of gas engine as claimed in claim 1, it is characterized in that, the position of described crank shaft angle is corresponding with position of piston in the petrol engine, store normal data in described electronic control unit, setting piston in described normal data, to be positioned at the pairing crank shaft angle of dot location be zero degree.
5, the controlling method of continuous ignition of gas engine as claimed in claim 4, it is characterized in that, the bent axle firing angle testing signal that described electronic control unit is received, it is the bent axle angle of 0～18 degree along clockwise direction, add since 0 degree along an anticlockwise advance angle, when this 0 degree is arranged on piston and is positioned at the summit a point of corresponding crank shaft angle, electronic control unit is exportable pulse signal receiving above-mentioned bent axle firing angle testing signal.
6, the controlling method of continuous ignition of gas engine as claimed in claim 1, it is characterized in that, in described electronic control unit, store bent axle post ignition angular data, described bent axle post ignition angle is before the bent axle firing angle, in the counterclockwise direction less than the crank shaft angle of 180 degree, electronic control unit output pulse signal not in described post ignition angle.
7, the controlling method of continuous ignition of gas engine as claimed in claim 5, it is characterized in that, described advance angle is after electronic control unit receives the testing signal of respective sensor, the degree of advance data that electronic control unit obtains after above-mentioned testing signal is handled.
8, as the controlling method of the described continuous ignition of gas engine of arbitrary claim in the claim 2 to 7, it is characterized in that, described crank shaft angle is corresponding with petrolic firing time, the crank shaft angle data of handling with needs of storing in electronic control unit comprise after being converted to time data: delay time data between premature ignition zero-time data, basic ignition time data, actual ignition time data, post ignition time data, twice igniting, end data firing time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810055768A CN100587256C (en) | 2008-01-08 | 2008-01-08 | Control method for continuous ignition of gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810055768A CN100587256C (en) | 2008-01-08 | 2008-01-08 | Control method for continuous ignition of gas engine |
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| Publication Number | Publication Date |
|---|---|
| CN101270718A CN101270718A (en) | 2008-09-24 |
| CN100587256C true CN100587256C (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810055768A Expired - Fee Related CN100587256C (en) | 2008-01-08 | 2008-01-08 | Control method for continuous ignition of gas engine |
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| CN107340382A (en) * | 2017-08-16 | 2017-11-10 | 叶明� | Gasoline octane number tester ignition angle detection control apparatus and detection control method |
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Non-Patent Citations (2)
| Title |
|---|
| 微机控制点火系统在现代汽车发动机上的应用. 仲子平.现代机械，第4期. 2003 |
| 微机控制点火系统在现代汽车发动机上的应用. 仲子平.现代机械，第4期. 2003 * |
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Owner name: CHINA VAGON (BEIJING) CARTRONICS HOLDING CO., LTD. Free format text: FORMER NAME: HUAXIA LONGHUI (BEIJING) AUTOMOBILE ELECTRONIC TECHNOLOGY CO., LTD. |
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Address after: 102206 No. 97, Changping Road, Shahe Town, Beijing, Changping District Patentee after: Huaxia Long Hui (Beijing) automotive electronic Polytron Technologies Inc Address before: 102206 8 building, No. 202, Changping Road, Shahe Town, Beijing, Changping District Patentee before: China Vagon (Beijing) Automobile Electronic Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20100203 Termination date: 20180108 |