CN1081733C

CN1081733C - Improved time delay ignition circuit for an internal combustion engine

Info

Publication number: CN1081733C
Application number: CN97197204A
Authority: CN
Inventors: W·赫尔米赫; T·D·克拉夫特; G·J·宾韦尔西; P·J·拜尔斯马
Original assignee: Ficht GmbH and Co KG
Current assignee: Ficht GmbH and Co KG
Priority date: 1996-06-21
Filing date: 1997-06-20
Publication date: 2002-03-27
Anticipated expiration: 2017-06-20
Also published as: CA2258105A1; JPH11513098A; WO1997048903A3; EP0906497A2; HK1022341A1; EP0906497A4; AU706153B2; AU4228497A; CN1227620A; WO1997048903A2

Abstract

An internal combustion engine assembly including an internal combustion engine including an engine block having at least one cylinder, a piston mounted within the cylinder for reciprocal movement in the cylinder, a fuel injector for injecting fuel into the cylinder, the fuel injector initiating a fuel injection event at a predetermined time and a circuit for generating a spark in the cylinder a predetermined amount of time after the injection event to cause combustion of fuel in the cylinder.

Description

That internal-combustion engine is used and be modified delayed firing circuit

It is 60/020032 that the application requires to obtain application number, and the applying date is the interests of the U.S. Patent application on June 21st, 1996.

And to submit to application number be no.08/07664, and the applying date is the attention of the U.S. Patent application in July 25 nineteen ninety-five.

Background of the present invention

The present invention relates to an internal-combustion engine, specifically, relate to a kind of internal-combustion engine ignition timing circuit.

Spark-ignited internal combustion engine requires to produce spark so that the empty mixed gas of the combustion in the ignition engine cylinder at the spark plug place.During internal combustion engine operation, the timing controlled of combustion process is a particular importance.Especially, the timing controlled of combustion process is determining the efficient that the speed of internal-combustion engine and acceleration performance and fuel are burnt in cylinder combustion.Known have a different combustion process time control method of many kinds.Be in particular everybody and be well known that the timing that utilizes the various Operational Limitss of internal-combustion engine to control combustion process.These parameters can comprise crank angle, engine temperature and/or in-cylinder pressure.

General introduction of the present invention

In using the internal-combustion engine of fuel injector, the air/fuel mixture is atomized into the combustion/empty mixed gas aerosol of a kind of " layering ", and the fuel injector nozzle of this aerosol in the cylinder " floats " towards the spark gap of spark plug.If ignition spark produced arcing and crosses this spark gap before this combustion/empty mixed gas aerosol arrives spark gap, then being somebody's turn to do combustion/empty mixed gas aerosol can perfect combustion.For the combustion/empty mixed gas aerosol perfect combustion that guarantees this layering, thereby need fire at this/the accurately timing of control spark ignition when empty mixed gas aerosol arrives spark gap.

Therefore, the invention provides the absolute delayed firing circuit that a kind of internal-combustion engine is used.This delayed firing circuit makes ignition timing based on from oil sprayer commencement of fuel injection institute elapsed time.In other words, the ECU (Electrical Control Unit) of internal-combustion engine produces a signal that causes injected fuel by fuel injector also subsequently according to the absolute time section from the transit time that injection signal begins to record, and produces a signal that causes spark ignition.This ECU (Electrical Control Unit) can be according to fixing section correction time, one is stored in one based on the predetermined amount of time in the storage of tracing table, or be that basic generation time postpones with algorithmic approach that each parameter (for example temperature, pressure or the like) is estimated for the time period that the software on basis calculates with one.

In one embodiment, internal-combustion engine operate in low speed the time by being that IGNITION CONTROL is carried out on the basis with time, and when high speed by being that IGNITION CONTROL is carried out on the basis with the crank angle, promptly the IGNITION CONTROL that changes to based on crank angle from the IGNITION CONTROL based on the time only depends on internal-combustion engine rotational speed.In another embodiment, internal-combustion engine operate in low-load the time (when measuring) by throttle position by being that IGNITION CONTROL is carried out on the basis with time, and when high load by being that IGNITION CONTROL is carried out on the basis with the crank angle, promptly the IGNITION CONTROL that changes to based on crank angle from the IGNITION CONTROL based on the time only depends on engine load.In an embodiment again, internal-combustion engine operate in low-load and low speed the time by being that IGNITION CONTROL is carried out on the basis with time, and when high load or high speed by being that IGNITION CONTROL is carried out on the basis with the crank angle, promptly the IGNITION CONTROL that changes to based on crank angle from the IGNITION CONTROL based on the time not only depends on internal-combustion engine rotational speed, also depends on engine load.

The present invention also provides a kind of combustion engine unit, and it comprises: an internal-combustion engine, this internal-combustion engine comprise an internal combustion (IC) engine airframe that has at least one cylinder; One is loaded on and is used at the reciprocating piston of this cylinder an oil sprayer that is used for fuel oil is sprayed into this cylinder in this cylinder; And be used for producing an injection control signal of representing injection process and be used for producing back one preset time section produces ignition spark at cylinder circuit arrangement in this injection control signal.

The present invention also provides a kind of combustion engine unit, and it comprises: an internal-combustion engine, this internal-combustion engine comprise an internal combustion (IC) engine airframe that has at least one cylinder; One is loaded on and is used at the reciprocating piston of this cylinder an oil sprayer that is used for fuel oil is sprayed into this cylinder in this cylinder; Reach one and be used to produce a circuit of representing the injection control signal of injection process, this circuit comprises that one has one and is used to produce the timer of the timing output of electrical signal regularly, and this timing signal has an expression and sprays the predetermined duration that control signal begins institute's elapsed-time standards from producing.

The present invention also provides a kind of method of controlling combustion engine intermediate fuel oil ignition timing, and this internal-combustion engine comprises an internal combustion (IC) engine airframe that has at least one cylinder; One is loaded on and is used in this cylinder at the reciprocating piston of this cylinder, an oil sprayer that is used for fuel oil is sprayed into this cylinder, and this method comprises the following steps: (A), produces a course of injection; (B), produced one fire signal according to institute's elapsed time since course of injection.

For purposes of the invention, its advantage provides an ignition system, the absolute time section that this system makes ignition timing record to begin from course of injection.

For purposes of the invention, its another advantage provides a kind of ignition timing system, and this system allows internal-combustion engine to move under less than 200 rev/mins idling speed.

For purposes of the invention, its another advantage provides a kind of ignition timing system, and this system carries out effectively the combustion/empty mixed gas aerosol in the cylinder and burning completely.

For purposes of the invention, its another advantage provides a kind of ignition timing system, and this system can hinder the fuctuation within a narrow range of internal-combustion engine rotational speed.

Further feature of the present invention and advantage be set forth in following detailed description and in.

Brief description of drawings

In conjunction with the accompanying drawings and after having considered following " DETAILED DESCRIPTION OF THE PREFERRED ", can carry out openly more completely to these or other feature of the present invention, in " optimizing embodiment's detailed description " part, identical label is represented components identical.Wherein:

Fig. 1 is the partial cross sectional view of a kind of internal-combustion engine of going out of concrete manifestation of the present invention;

Fig. 2 is the schematic representation of the delayed firing circuit used of a single-cylinder engine;

Fig. 3 is one, and to be illustrated in this delayed firing circuit between the different electrical signals with time be the plotted curve of the various relations that draw of basis;

Fig. 4 is a schematic representation that expression one delayed firing circuit uses with a six-cylinder engine;

Fig. 5 is the chart of the injection timing used of a presentation graphs 4 described internal-combustion engines, and this chart draws at before top dead center (DBTDC) function that record by angle and that can be used as internal-combustion engine rotational speed and throttle position;

Fig. 6 is the chart of the ignition timing used of a presentation graphs 4 described internal-combustion engines, and this chart draws at before top dead center (DBTDC) function that record by angle and that can be used as internal-combustion engine rotational speed and throttle position;

Fig. 7 is a chart of representing the relevant time of maximum point fire coil that internal-combustion engine shown in Figure 4 is used, and this chart draws with the function that millisecond (ms) measured and can be used as internal-combustion engine rotational speed;

Fig. 8 is a chart of representing the relevant time of spark coil that internal-combustion engine shown in Figure 4 is used, and this chart draws with the function that millisecond (ms) measured and can be used as internal-combustion engine rotational speed;

Fig. 9 is a chart of representing the injection pulse time that internal-combustion engine shown in Figure 4 is used, and this chart draws with the function that millisecond (ms) measured and can be used as internal-combustion engine rotational speed and throttle position;

Figure 10 is one and is illustrated in the internal-combustion engine shown in Figure 4 from the igniting based on the time and carries out the transition to plotted curve based on the igniting of crank angle.

Resolve before one embodiment of the present of invention in detail, should understand: the present invention is not limited in layouts that following specification is set forth or shown detailed structure of each accompanying drawing and component.The present invention can comprise other embodiment, and can implement or realize by different modes.In addition, should understand: phrase used herein and term are for the present invention is described but can not think limitation of the present invention.

Optimize embodiment's detailed description

The partial sectional view of one internal-combustion engine 10 has been shown among Fig. 1, has wherein shown a cylinder 14 of internal-combustion engine 10.This internal-combustion engine 10 comprises a crankcase 18, and this crankcase 18 limits a crankcase chamber 22 and bent axle 26 can rotate in this crankcase chamber.Internal combustion (IC) engine airframe 30 defines cylinder 14.This body 30 also limits one by means of the suction port 34 of a transmission passage 38 with connection between cylinder 14 and the crankcase chamber 22.This body 30 also limits a relief opening 42.A but piston 46 to-and-fro motion and can be connected to drivingly on the bent axle 26 in cylinder 14 by means of connecting rod crank assembly 50.The upper end of one cylinder head, 54 closed cylinders 14 is so that limit a firing chamber 58.This internal-combustion engine 10 comprises that also is contained in an oil sprayer 62 that is used for fuel oil is sprayed into firing chamber 58 on the cylinder head 54.One spark plug 66 is loaded on this cylinder head 54 and stretches in the firing chamber 58.

Internal-combustion engine 10 comprises that also (referring to Fig. 2) predetermined instant after fuel oil has sprayed in the firing chamber 58 produces the delayed firing circuit 70 of an igniting spark in cylinder 14.As shown in Figure 2, this delayed firing circuit 70 comprises that one has data output 78, sprays the microprocessor 74 that indicator output 82 and one produces ignition spark output 86.As described below, this microprocessor 74 produces an igniting spark signal at output 86 places.Yet should understand: this ignition spark signal also can be produced by other suitable component (for example ECU-internal-combustion engine electronic control unit).This circuit 70 also comprises a timer 90, and this timer has a data input 94 time signal and that have eight bit register that is used to receive from data output 78 outputs of microprocessor 74.This timer 90 also has in the injection indicator output 82 that is connected to microprocessor 74 so that receive the triggering input 98 of the signal that has been started by microprocessor 74 from an expression course of injection of microprocessor 74.This timer 90 also comprises pulse output 102 when certain.

This delayed firing circuit 70 also comprise one have two the

input

110 and 114 and one output 118 with (AND) door 106.Be connected in the output 102 of timer 90 with the input 110 of door 106.Be connected on the microprocessor 74 so that the sparks by spark generation output 86 outputs that receive from microprocessor 74 produce signals with the input 114 of door 106.Be connected to (schematic representation as shown in Figure 1 is described) on the spark coil 122 with the output 118 of door 106, so that in cylinder 14, produce an igniting spark and the fuel oil in the cylinder 14 is lighted.

Be in operation, when injection process takes place, timer 90 triggers input 98 places at it and receives an injection control signal (referring to the label Fig. 3 2) from output 82 outputs of microprocessor 74, and begins the clock pulse of coming from the microprocessor clock signal is counted according to this injection control signal.When the timer counting did not overflow, this timer 90 was exported 102 places at it and is produced a high-value signal or timing signal (referring to the label among Fig. 3 3).When microprocessor 74 produces spark signal at output 86 places (label 4 in referring to Fig. 3), and when this spark signal is received at input 114 places with door 106, should export 118 places at it with door 106 and produce an output or fire signal or electric current, this fire signal or electric current are fed to spark coil 122 (referring to label among Fig. 3 5).Also decline (label 6 in referring to Fig. 3) of (label 7 in referring to Fig. 3) output 118 when output 102 descends.When output 118 kept high value, the electric current that flows through spark coil rose.When timer overflows from the microprocessor count pick up, cause when output 118 descends that promptly when microprocessor 74 demonstrations had been experienced a period of time of requirement since course of injection, output 102 descended.Because electric current in indicator or spark coil can not change (V=L (di/dt)) immediately, the sudden change of therefore supplying with the electric current of coil can cause that the voltage in the spark coil rises rapidly, therefore produces a spark that makes the fuel ignition in the cylinder 14.In order to be adapted to have the different big or small internal-combustion engines of difference cylinder number, the described delayed firing circuit 70 of Fig. 2 can be repeated and the as many number of times of number of cylinders.

Though firing circuit 70 can use when any rotating speed, preferably when low speed or idling, use, promptly when the speed of crankshaft of 200-2000 rev/min (RPM), use, and demonstrated this firing circuit 70 and work well especially during to 200RPM in that rotating speed is low.At rotating speed is during greater than 2000RPM, and internal-combustion engine is preferably by the ignition system control based on crank angle of routine.Among both, spark produces the timing of signal only based on crank angle when this rotating speed at conventional internal-combustion engine and each internal-combustion engine shown in the drawings 10.Yet in the prior art, spark produces signal and is directly connected on the spark coil, and directly inspires ignition spark and without any need for other signal.Consequently the timing of the igniting process of prior art is the absolute time value that depends on crank angle rather than calculate from a fixed point on time.Compare ground, firing circuit 70 make igniting always occur in course of injection take place after on the preset time section, and this preset time section is not based on crank angle.Fuel injection processes starts from the fuel injection signal of the output 86 places generation of microprocessor 74.This injection signal or form when occurring in oil sprayer and being subjected to exciting or according to the actual fuel injections that spray in the cylinder 14.

Fig. 4 represents a delayed firing circuit 200 that is used for six-cylinder engine.Identical parts are represented with identical label.Rather than with circuit repetition shown in Figure 2 six times, various signal combination are got up (carrying out multiplex) embodiment illustrated in fig. 4, thereby but the economy of electron gain element use.

As shown in Figure 4, circuit 200 comprises timer 2 04, this timer 2 04 has 208, three of 8 bit data input registers and corresponds respectively to

cylinder

1 and 4,2 and 5,3 and 6 triggering input 212,216 and 220, one 224 and three of clock inputs correspond respectively to the output 228 that triggers input 212,216 and 220,232,236.Circuit 200 also comprise have respectively output 252,256 and 260 or (OR) door 240,244 and 248 they be connected respectively to and trigger in the input 212,216 and 220.This or door 240,244 and 248 also comprise the input 264 and 268,272 and 276 that is connected respectively on the

microprocessor

74, and 280 and 284, be illustrated in the injection output signal that course of injection has taken place in the given cylinder so that receive.In other words, microprocessor produces output signal at output 288,292,296,300,304 and 308 places, thereby is illustrated respectively in cylinder 1,2, injection has taken place in 5,3 and 6.

This delayed firing circuit 200 also comprise have paired respectively and be connected respectively in the timer output 228,232 and 236 input 324,328 and 332 with door 312,316 and 320.Should also have output 336,340 and 344 respectively with door 312,316 and 320.This delayed firing circuit 200 also comprise one have one be connected to door 312 output 336 on input 352, an input 356 and one output 360 with door 348; With door 364 have one be connected to door 316 output 340 on input 368, one inputs 372 and one output 378; Has input 384, one inputs 388 and one output 392 that is connected to the output 344 of door on 320 with door 380; With door 396 have one be connected to door 320 output 344 on input 400, one inputs 404 and one output 408.Be connected respectively on the microprocessor 74 with the input 356 and 372 of door 348 and 364, so that the fire signal that reception comes from the output 412 and 416 of microprocessor 74 respectively.In delayed firing circuit 200, the fire signal that is used for cylinder 1 and 4 that comes from microprocessor carries out multiplex in output 412, i.e. combination, and the fire signal of cylinder 2 and 5 usefulness carries out multiplex in output 416.Be connected respectively on the microprocessor 74 with the output 388 and 404 of door 380 and 396, so that receive respectively from the output 420 of microprocessor 74 and 424 fire signal.Output 420 produces the fire signal of cylinder 3 usefulness, and exports the fire signal of 424 generation cylinders, 6 usefulness.The ignition control signal that provides the spark coil of cylinder 3 and 6 to use respectively with the output 392 and 408 of door 380 and 396.Alternatively, the ignition control signal of cylinder 3 and 6 usefulness can be produced with the multiplex form by microprocessor 74, and is combined into timing output signal at 344 places, and by a circuit shunt that is similar to shunt (DMUX) 428.Be respectively cylinder 1 and 4 with the output 360 and 376 of door 348 and 364, cylinder 2 and 5 spark coil provide the multichannel ignition control signal.

This delayed firing control circuit 200 also comprises a shunt (DMUX) 428.This shunt 428 comprises and door 432 and 436 and and door 440,444,448 and 452.Shunt receive respectively with

door

348 and 364

output

360 and 376 and the

control output

456 and 460 of microprocessor 74 as input, so that to

cylinder

1 and 4,2 and 5 usefulness, and the multichannel ignition control signal that produces at

output

360 and 376 places respectively carries out the shunt processing.Shunt produces at output 464,468,472 and 476 places respectively and is used for

control cylinder

1,4,2 and 5 shunt ignition control signal.

When operation, when delayed firing circuit 200 is used for low speed, when promptly speed of crankshaft is 200-2000RPM, and has demonstrated when rotating speed hangs down to 200RPM and can work particularly well.At rotating speed is during greater than 2000RPM, the timing system control based on crank angle of the most handy routine of this igniting.This microprocessor or door 240 input 264 places provide an injection signal for cylinder 1, or input 268 places of door 240 provide an injection signal for cylinder 4.Therefore cylinder 1 and 4 injection signal or output 252 places of door 240 mutually combine.Similarly, cylinder 2 and 5 injection signal or the output 256 of door 244 combine cylinder 3 and 6 injection signal then or output 260 places of door 248 combine.Injection signal is input to the triggering input 212,216 and 220 of timer respectively.According to the multicircuit time data that receive from microprocessor through data input 208, can produce a timing signal that combines, this timing signal is used for cylinder 1 and 4 at output 228 places, and 232 places can be used for cylinder 2 and 5 in output, and 236 places can be used for cylinder 3 and 6 in output.This timing signal that combines respectively be used for cylinder 1 and 4 and ignition control signal cylinder 2 and 5 and that combine combine, thereby form a pair of fire signal that combines of cylinder 1 and 4 and 2 and 5 usefulness.Shunt 428 makes this fire signal that combines carry out shunt, thereby produces the fire signal based on absolute time of cylinder 1,4,2 and 5 usefulness.

This microprocessor also produces the single spark control signal that is respectively applied for cylinder 3 and 6 at its

output

420 and 424 places.This spark control signal is imported into and

door

380 and 396, is used for producing at

output

392 and 408 places respectively the fire signal based on absolute time of cylinder 3 and 6 usefulness.

Though only depending on internal-combustion engine rotational speed based on the igniting of time with based on the variation between the igniting of crank angle shown in the foregoing description, but also can be separately or combine one or more in many other parameters of using internal-combustion engine, thereby determine when between and change based on the igniting of time and igniting based on crank angle.The example of other suitable parameters of internal-combustion engine comprises engine load, throttle position or some other suitable parameters.

Fig. 5-9 shows injection timing with the form of chart, ignition timing, absolute maximum point fire coil operating time, the injection pulse time of the spark coil operating time of relevant the best and the controlling schemes of firing circuit 200 usefulness.Shown in Fig. 5-9, internal-combustion engine throttle opening during for lower percentage (about aperture 15% or lower) by ignition operation based on the time, but when throttle opening is higher percentage (be higher than aperture 15%) by ignition operation based on crank angle.In other words, from based on the igniting of time to the position that only relies on closure based on the igniting of crank angle, this position is to measure with the percentage of the aperture of closure.

Injection timing shown in Figure 5 is to measure with the angle of before top dead center.When firing circuit 200 is worked by the mode based on the time, promptly throttle position is 150 or more hour, the injection timing numeric representation before top dead center electric current in Fig. 5 begins at the moving angle value of oil sprayer coil midstream.When firing circuit 200 is worked by the mode based on crank angle, promptly throttle position was greater than 150 o'clock, and the injection timing numeric representation before top dead center fuel oil among Fig. 5 begins to spray into the angle value in the firing chamber.

Figure 10 represent firing circuit 200 another replace that controlling schemes uses based on the igniting of time to plotted curve based on the conversion between the igniting of crank angle.As shown in figure 10, internal-combustion engine closure during for the position of low percentage and low speed by ignition operation based on the time, and when closure is in the position of high percentage or high speed by ignition operation based on crank angle.As shown in figure 10, if internal-combustion engine rotational speed is lower than 1000RPM, and the closure of controller requires less than 20% (be the detected throttle position of throttle sensor less than peaked 20%--shown in " 200T.P.S " among Figure 10), and then igniting is based on the time.If internal-combustion engine rotational speed is higher than 1000RPM or the requirement of controller closure greater than 20%, then igniting is based on crank angle.As mentioned above, this point is controlled by ECU (internal-combustion engine electronic control unit).Have been found that: this being transformed into from the igniting based on the time adorned the internal-combustion engine exchange by engine speed based on " the dual strategy " of the igniting of crank angle and good roadability can be provided and can provide good accelerating performance by means of the exchange of throttle position outside one.It is NO.60/020033 that the ignition system of optimizing is disclosed in application number, and the applying date is on June 21st, 1996, and name is called in the U.S. Patent application of " many sparks capacitor discharge ignition system that internal-combustion engine is used ", and this patent application is incorporated herein by reference.

Each feature of the present invention and advantage are set forth in following each claim.

In following each claim, all devices or step add the corresponding construction of functional element, material, effect and equivalent all should be believed to comprise: when concrete right being required described content and the described combination of elements of other claim, be used to implement any structure of described function, material or effect.

Claims

1, a kind of combustion engine unit, it comprises: an internal-combustion engine, this internal-combustion engine comprise a body with at least one cylinder; One is loaded on and is used in the described cylinder at the reciprocating piston of described cylinder; One sprays into oil sprayer in the described cylinder with fuel oil; And be used to produce a circuit arrangement of representing the injection control signal of fuel injection processes; One by means of producing a timer of institute's elapsed-time standards after producing in described injection control signal being measured corresponding to the timing signal of described elapsed-time standards; And only according to described elapsed-time standards, to be used in described cylinder, producing the device of an igniting spark.

2, combustion engine unit according to claim 1, it is characterized in that: described circuit arrangement comprises: one has a microprocessor that is used to produce the injection output of described injection control signal, and described injection output is connected on the described timer, is used to inspire described timing signal.

3, as combustion engine unit as described in the claim 2, it is characterized in that: described circuit arrangement also comprises: be used to produce the device of an igniting signal, and that receive described timing signal and described fire signal and a door.

4, as combustion engine unit as described in the claim 3, it is characterized in that: describedly produce some thermoelectricity stream according to received described timing signal and described fire signal with door.

5, as combustion engine unit as described in the claim 4, it is characterized in that: described ignition spark produces when stopping to produce described initial firing current with door.

6, as combustion engine unit as described in the claim 5, it is characterized in that: describedly when described timer stops to produce described timing signal, stop to produce described initial firing current with door.

7, a kind of combustion engine unit, it comprises: an internal-combustion engine, this internal-combustion engine comprise a body with at least one cylinder; One is loaded on and is used in the described cylinder at the reciprocating piston of described cylinder; One sprays into oil sprayer in the described cylinder with fuel oil, reach one and be used to produce a circuit of representing the injection control signal of fuel injection processes, described circuit comprises that is used to produce the regularly timer output of electrical signal, and described timing signal has an expression produces back institute elapsed-time standards section from described injection control signal the predetermined duration.

8, as combustion engine unit as described in the claim 7, it is characterized in that: described timer comprises that one triggers input, and described circuit comprises that one is connected in the described triggering input and is used to excite the microprocessor that produces described timing signal.

9, as combustion engine unit as described in the claim 8, it is characterized in that: described circuit comprise one be connected in the described timer output with door, describedly produce an output signal that is used in described cylinder, inspiring an igniting spark with door.

10, as combustion engine unit as described in the claim 9, it is characterized in that: described circuit comprises: have a device that is used to produce the igniting output of an igniting signal, and describedly also be connected to described igniting with door and export.

11, as combustion engine unit as described in the claim 10, it is characterized in that: describedly produce some thermoelectricity stream according to described timing signal that receives and described fire signal with door.

12, as combustion engine unit as described in the claim 11, it is characterized in that: described spark produces when stopping to produce described initial firing current with door described.

13, as combustion engine unit as described in the claim 12, it is characterized in that: describedly when described timer stops to produce described timing signal, stop to produce described initial firing current with door.

14, a kind of method of in internal-combustion engine, fuel ignition being carried out timing, described internal-combustion engine comprises: the body with at least one cylinder; One is loaded on and is used in the described cylinder at the reciprocating piston of described cylinder, one be connected on the described piston and install the bent axle that can be rotated according to the to-and-fro motion of described piston, and one spray into oil sprayer in the described cylinder with fuel oil, and described method comprises the following steps:

Produce a course of injection;

Produce an injection control signal corresponding to course of injection;

Measure by means of producing a time of being experienced after corresponding to the timing signal of described elapsed-time standards the described IGNITION CONTROL in described injection control signal being produced;

Produce fire signal; And

When initial firing current is only determined by the existence of described timing signal and described fire signal, in described cylinder, produce some thermoelectricity stream.

15, as method as described in the claim 14, it is characterized in that: the step that produces described initial firing current also comprises: the step that described initial firing current only takes place to produce according to described timing signal and described fire signal simultaneously.

16, as method as described in the claim 14, it is characterized in that: comprise that also the crank position when being higher than predetermined threshold value according to internal-combustion engine rotational speed produces the step of described initial firing current.

17, as method as described in the claim 14, it is characterized in that: comprise that also the crank position when surpassing a given range according to engine conditions produces the step of described initial firing current.

18, as method as described in the claim 17, it is characterized in that: described engine conditions is the rotating speed of internal-combustion engine.

19, as method as described in the claim 17, it is characterized in that: described engine conditions is a throttle position.

20, as method as described in the claim 14, it is characterized in that: also comprise according to the step that produces described initial firing current when one in two engine conditions crank position during above a given range.

21, as method as described in the claim 20, it is characterized in that: two operating modes of described internal-combustion engine are internal-combustion engine rotational speed and throttle position.

22, a kind of method that makes an internal combustion engine operation, described method make this internal-combustion engine by the igniting operation based on the time when comprising the following steps: in engine conditions is in given range; When engine conditions is not in given range, make this internal-combustion engine by igniting operation based on crank angle.

23, as method as described in the claim 22, it is characterized in that: described given range is under the predetermined value.

24, as method as described in the claim 22, it is characterized in that: described engine conditions is an internal-combustion engine rotational speed, in throttle position and the engine load one.

25, a kind of method that makes an internal combustion engine operation, described method comprise the following steps: to make when all operating modes in the some operating modes of internal-combustion engine are in the corresponding given range this internal-combustion engine by the igniting operation based on the time; When the arbitrary operating mode in each operating mode of internal-combustion engine is not in corresponding given range, make this internal-combustion engine by igniting operation based on crank angle.

26, as method as described in the claim 25, it is characterized in that: each given range all is under the corresponding predetermined value.

27, as method as described in the claim 26, it is characterized in that: each operating mode of internal-combustion engine is an internal-combustion engine rotational speed, in throttle position and the engine load one.

28, a kind of method that makes an internal combustion engine operation, described method comprises the following steps:

Internal-combustion engine is moved by the igniting based on the time when low speed and low-load;

Internal-combustion engine is moved by the igniting based on crank angle when high load or high speed.