CN1796732A - Detection device and method for engine misfiring, cross-ride vehicle - Google Patents
Detection device and method for engine misfiring, cross-ride vehicle Download PDFInfo
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- CN1796732A CN1796732A CNA2005101356391A CN200510135639A CN1796732A CN 1796732 A CN1796732 A CN 1796732A CN A2005101356391 A CNA2005101356391 A CN A2005101356391A CN 200510135639 A CN200510135639 A CN 200510135639A CN 1796732 A CN1796732 A CN 1796732A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The present invention provides a spark failure detection device of the engine and the vehicle provided with the spark failure detection device, reasonalize the output of the spark failure detection according to the engine considering the air fuel ratio of the air-exhausting system. The spark failure detection device of the invention, is characterized in that it has the following components: a spark failure detection mechanism which is used to detect the spark failure of the engine (12); a MIL (44) which lights the lamp corresponding to the spark failure detection result of the spark failure detection mechanism; a digital data of the air fuel ratio obtaining mechanism, which obtains the pressure of the breathing pipe, the rotating speed of the engine (12) and the opening-and-closing state of the secondary air quantity control valve (34), as the air fuel ratio digital data relative to the air fuel ratio of the air-exhausting system which is used to circulate the exhausted air of the engine; and a ECU (42) which restrains the lighting of the MIL (44) corresponding to the relative digital data of the air fuel ratio which is obtained by the relative digital data obtaining mechanism.
Description
Technical field
The present invention relates to misfire detection device and the method and the bestride type vehicle of motor, particularly make the technical field of output (for example bright lamp of emergency warning lamp or the flash of light etc.) rationalization that detects corresponding to misfiring of motor.
Background technique
For two-wheeled vehicle such as bestride type such as grade, be badly in need of the environmental protection scheme equally.Particularly, because the exhaust that causes motor of misfiring of motor worsens, misfire and export so need detect as far as possible exactly.
On the other hand, in motor, exist to import the device of secondary air in its vent systems, the HC (hydrocarbon) and CO (carbon monoxide) oxidation that thus can be in relief opening or outlet pipe be contained in waste gas are transformed into water vapour and carbon dioxide.And, when being provided with catalyzer in the vent systems, also can utilize the NOx (nitrogen oxide) that is contained in this catalyst reduction waste gas.Therefore, the inclusion of the waste gas of final motor, the difference along with the exhaust gas purification effect of these vent systems, thereby should consider that the size of the exhaust gas purification effect of vent systems judges whether implement to detect corresponding output with misfiring of motor.
For this point, the diagnosis apparatus of misfiring of the motor that following patent document 1 is put down in writing, calculate discharge amount of exhaust gas according to catalyst temperature and the igniting number of times after the last time misfires, consider that the size of the exhaust gas purification effect of vent systems improves the precision of the diagnosis of misfiring.
Patent document 1: the spy opens the 2000-170524 communique
But what above-mentioned patent document 1 was put down in writing is, with the pass of the purifying rate of catalyst temperature and HC Chart is made by system, and with the igniting number of times after the last time misfires and the recovery rate of catalyst performance Relation also make chart, with reference to above-mentioned schematic calculation discharge amount of exhaust gas, and do not consider to import exhaust system The air-fuel ratio (air is with respect to the ratio of fuel) of the gas of system. Owing to import the gas of gas extraction system Air-fuel ratio bigger to the exhaust gas purification function influence of gas extraction system, the reality so preferably consider its impact Grant misfiring of engine and detect corresponding output.
Summary of the invention
The present invention proposes just in view of the above problems, its purpose is to provide a kind of misfire detection device and method and bestride type vehicle of motor, and it can be considered the air fuel ratio of vent systems and the output corresponding with the detection of misfiring of motor is rationalized.
In order to address the above problem, the detection device of misfiring of the motor that the present invention relates to is characterized in that having: the feeler mechanism of misfiring of misfiring that is used for detection of engine; The output mechanism that the testing result of misfiring of the corresponding described feeler mechanism of misfiring is exported; The air fuel ratio related data obtains mechanism, and it obtains the relevant air fuel ratio related data of air fuel ratio of the vent systems that circulates with the waste gas that is used to make described motor; And export-restriction mechanism, its correspondence obtains the obtained air fuel ratio related data of mechanism by described air fuel ratio related data and limits the output of described output mechanism.
And the detecting method of misfiring of the motor that the present invention relates to is characterized in that, may further comprise the steps: the detection step of misfiring of misfiring of detection of engine; The output step that the corresponding testing result of misfiring that draws in the described detection step of misfiring is exported; The air fuel ratio related data that obtains the relevant air fuel ratio related data of the air fuel ratio of the vent systems that circulates with the waste gas that is used to make described motor obtains step; And corresponding obtain the air fuel ratio related data that obtains in the step in described air fuel ratio related data, limit the export-restriction step of the output in the described output step.
In the present invention,, detect corresponding output rationalization, for example, limit output etc. if the air fuel ratio of vent systems improves so can make with misfiring of motor owing to limit the output corresponding with the testing result of misfiring according to the air fuel ratio of vent systems.At this, the restriction of the output corresponding with the testing result of misfiring, the detection itself of both can having forbidden or suppress to misfire also can detect when misfiring, and forbids or suppress corresponding output.
In a scheme of the present invention, be provided with catalyzer in the described vent systems.Because the size of the effect of catalyzer is also along with the air fuel ratio of vent systems changes, so adopt this scheme that the output corresponding with the detection of misfiring of motor is rationalized.
In a scheme of the present invention, described air fuel ratio related data is the data of the rotating speed of the described motor of expression.When the rotating speed of motor improved, owing to fluctuation makes the quantitative change of the oxygen that imports to vent systems few, the air fuel ratio of vent systems descended.On the contrary, when the rotating speed of motor descended, owing to fluctuation makes the quantitative change of the oxygen that imports to vent systems many, the air fuel ratio of vent systems improved.Therefore, adopt this scheme also can judge the height of the air fuel ratio of vent systems.
In a scheme of the present invention, described motor has the secondary air introducing mechanism that is used for secondary air is imported to described vent systems; Described air fuel ratio related data is to represent to have or not to utilize described secondary air introducing mechanism to import the data of the import volume of described secondary air or described secondary air.Also can suitably judge the height of the air fuel ratio of vent systems according to this scheme.
In a scheme of the present invention, described air fuel ratio related data is to represent the data of the interior pressure of outlet pipe included in the described vent systems.When the negative pressure after utilizing combustion gas imports vent systems with oxygen (air),, then be difficult for importing oxygen if the interior pressure of outlet pipe is high.Therefore, also can judge the height of the air fuel ratio of vent systems according to this scheme.
In a scheme of the present invention, described motor has and is used for air is imported suction tude in the firing chamber of described motor; Described air fuel ratio related data is the data of the interior pressure of the described suction tude of expression.The interior pressure of suction tude is relevant with the interior pressure of outlet pipe.And, generally speaking, when the interior pressure of suction tude is higher, a large amount of fuel can be ejected in the suction tude.Therefore, also can judge the height of the air fuel ratio of vent systems according to this scheme.
In a scheme of the present invention, described output is the bright lamp or the flash of light of emergency warning lamp.So, can report the detection of misfiring to the user.
In a scheme of the present invention, described output is the motion limits of described motor.Motion limits, for example be meant speed setting upper limit to motor and so on to qualification of operating space etc.So, can corresponding misfire and detect the unsuitable action of limiting engine.
The bestride type vehicle that the present invention relates to is the bestride type vehicle with the detection device of misfiring of above-mentioned any motor.The bestride type vehicle for example is meant two-wheeled (containing scooter), wagon (all-terrain vehicle), snowmobile etc.According to the present invention, can realize a kind of correspondence is misfired bestride type vehicle that the output of testing result rationalizes.
Description of drawings
Fig. 1 is the outward appearance side view of the automatic two-wheeled cycle that relates to of embodiments of the present invention.
Fig. 2 is the overall structure figure that expression comprises the engine control system of the detection device of misfiring that embodiments of the present invention relate to.
Fig. 3 is when representing normal combustion and the figure of the rotating speed change of the motor in when misfiring.
Fig. 4 is the functional block diagram of expression by the function that ECU realized.
Fig. 5 represent to misfire example of chart of relation of threshold value, engine speed and the suction press of judging the engine speed difference that is adopted.
An example of the chart of the relation of vent systems air fuel ratio, engine speed and suction press when Fig. 6 represents the opening of secondary air control valve.
An example of the chart of the relation of vent systems air fuel ratio, engine speed and suction press when Fig. 7 represents that the secondary air control valve is closed.
Fig. 8 represents the example of chart of the relation of coefficient of purification and vent systems air fuel ratio.
Fig. 9 is the misfire example of chart of relation of the basic threshold value of a period and fuel injection amount of expression.
Figure 10 represents the example of chart of the relation of water temperature correction factor and engine cooling water temperature.
Figure 11 is the flow chart that expression is misfired and detect to be handled.
Figure 12 is that the expression load change detects the flow chart of handling.
Figure 13 is the flow chart that the expression exhaust worsens judgment processing.
Figure 14 is the flow chart that the expression exhaust worsens judgment processing.
Figure 15 is the flow chart that the expression exhaust worsens judgment processing.
Figure 16 is the misfire flow chart of frequency threshold computing of expression.
Symbol description
10 engine control systems, 12 motors, 14 cranks, 16 firing chambers, 17 spark plugs, 18 outlet pipes (vent systems), 20 suction tude (gas handling system), 21 fuel injection systems, 22 closures, 23 air inlet side cams, 24 throttle sensors, 25 suction valves, 26 air-strainer, 27 exhaust side camshafts, 28 catalyzer, 29 outlet valves, 30 catalyst-temperature pickups, 32 secondary airs import road, 34 secondary air control valves, 36 crank pulse sensors, 37 trailing wheels, 38 cooling-water temperature sensors, 39 postbrachiums, 40 intake manifold pressure sensors, 41 suspensions, 42ECU, 42a experiences memory section, 42b load change detection unit, the 42c detection unit of misfiring, 42d load sign memory section, 42e are misfired and are indicated buffer-stored portion, 42f vehicle control section, the 42g exhaust worsens judging part, the 42h frequency threshold calculations portion of misfiring, 42i chart memory section, 43 radiators, 44MIL (emergency warning lamp), 45 seats, 47 handles, 48 driver elements, 49 body frames, 50 base plate parts, 51 front-wheels, 53 front forks
Embodiment
Below, describe embodiments of the present invention with reference to the accompanying drawings in detail.
Fig. 1 is the two-wheeled overall structure figure that expression an embodiment of the invention relate to.Two-wheeled shown in this figure is a kind of form of the bestride type vehicle that the present invention relates to, and it has the misfiring detection device of motor that relates to as an embodiment of the invention and the engine control system that plays a role.Vehicle body is made of body forward structure A and body tail B, and body forward structure A and body tail B link to each other with base plate part 50 by body frame 49, and wherein this body frame 49 constitutes the skeleton of this vehicle body.
Body forward structure A comprises: front fork 53, the axle that can be installed on the front end of this body frame 49 are supported in the front-wheel 51 of underpart of this front fork 53 and the handle that turns to usefulness 47 that is supported in the upper end portion of front fork 53 with turning to.Above handle 47, dispose meters, MIL (emergency warning lamp) 44 particularly is installed on this automatic two-wheeled cycle.
Body tail B comprises: postbrachium 39, and it extends along fore-and-aft direction of vehicle body, and its anterior side shaft is supported in the part midway of the fore-and-aft direction of body frame 49, and its rear portion side can be swung up and down; Be installed in the trailing wheel 37 of the rearward end of swinging of this postbrachium 39; Built is arranged on the suspension 41 on the rearward end of swinging of the rearward end of body frame 49 and postbrachium 39; And be arranged on the below of seat 45 and be supported on postbrachium 39 and body frame 49 on driver element 48.
Driver element 48 comprises: be arranged on the lower front of seat 45 four-stroke single cylinder engine 12, by automatic clutch the driving force of motor is delivered to the automatic transmission of trailing wheel, the radiator 43 of central part below that is arranged on seat 45 and the generator various Denso devices such as (not shown) that are arranged on the central part below of seat 45 equally.Below seat 45, also be provided with ECU (control unit of engine) 42.
Fig. 2 is the integrally-built figure of engine control system that expression comprises the detection device of misfiring of embodiment of the present invention.As shown in Figure 2, this engine control system 10 comprises motor 12, ECU42 and MIL44.And, motor 12 be loaded in two-wheeled on.And closure 22 is connected on the closure handle that is installed on the two-wheeled handle 47, and the person of taking of bestride type vehicle can adjust the aperture of closure 22 by rotating this closure handle.
In this engine control system 10, by the change of ECU42 according to the rotating speed (rotational speed) before and after the change of the rotating speed of motor 12, the especially explosion stroke, the detection of misfiring.Fig. 3 expresses the example of change of the rotating speed of motor 12, laterally represents the crank angle, vertically represents engine speed.Motor 12 is four stroke engine, the corresponding engine cycles of crank angle 0～720 degree.And, the corresponding compression top center of crank angle 0 degree.And laterally a plurality of scales shown in represent that respectively crank pulse regularly.As shown in Figure 3, during normal combustion, in the front and back of explosion stroke (for example the crank angle is 0 degree and 180 degree), engine speed is increased sharply.On the other hand, when misfiring, reduce in the front and back of explosion stroke engine speed.In engine control system 10, obtain engine speed by two crank angles that are set in the engine cycles, the situation that is no more than predetermined threshold in its difference judges and misfires for motor 12.And, detect when continuing when misfiring, make the bright lamp of MIL44.
But, adopt this method of misfiring and detecting, under situation such as travel on the bad road surface, testing precision reduces.That is, as mentioned above, closure 22 is connected on the closure handle, when the bestride type vehicle travels on bad road surface, by the person's of taking rotating operation closure handle fine, the aperture of closure 22 is fine changed.But, ECU42, according to engine speed, utilize known controlling method for example feedforward control control solenoid fuel injection device 21, and adjust its fuel injection amount, wherein said engine speed is according to by the detected throttle opening of throttle sensor 24, by the detected suction press of intake manifold pressure sensor 40, calculated by crank pulse sensor 36 detected crank pulses.Therefore, when the aperture of closure 22 as mentioned above during change fine, then control sometimes can produce and postpone, supply to motor 12 firing chamber 16 air and fuel ratio, be the adjustment precision reduction of air fuel ratio.The reduction of the adjustment precision of this air fuel ratio also can have influence on the change of the rotating speed of motor 12.Consequently, when travelling on bad road surface etc., under the situation of the trickle rotation closure of the person of taking handle, the precision that detects based on misfiring of the rotating speed of motor 12 reduces.Therefore, in the present embodiment, detect the state of closure 22 trickle changes as mentioned above, at this moment limit the bright lamp of MIL44.
The structure of engine control system 10 here, is described according to Fig. 2.As shown in Figure 2, on the suction port of motor 12, be connected with suction tude 20 (gas handling system), on relief opening, be connected with outlet pipe 18 (vent systems).Suction port opens and closes by the suction valve 25 with intake-side camshaft 23 interlocks, and relief opening opens and closes by the outlet valve 29 with exhaust side camshaft 27 interlocks.Suction tude 20 is provided with the closure 22 that is connected with the closure handle, and is provided with the fuel injection system 21 of electronic control type.And, be attached with throttle sensor 24 at closure 22, detect the aperture of closure 22, and the throttle opening data are offered ECU42.And, intake manifold pressure sensor 40 also is installed on suction tude 20, detect the internal pressure (interior pressure) of suction tude 20, and it is inputed to ECU42.Middle part branch in suction tude 20 is provided with air-strainer (air filter) 26, and the extraneous gas after being purified by this air-strainer 26 is via closure inflow engine 12 1 sides.And, the control of corresponding ECU42, the fuel mix of being sprayed with fuel injection system 21 and form mixed gas flows into firing chamber 16.The mixed gas that flows into firing chamber 16 is lighted a fire by spark plug 17, and mixed gas carries out explosive combustion in firing chamber 16.Afterwards, waste gas after burning flows out to outlet pipe 18.Be provided with catalyzer 28 in outlet pipe 18, the waste gas of circulation is purified by this catalyzer 28 in outlet pipe 18.That is, HC that is contained in the waste gas (hydrocarbon) and CO (carbon monoxide) are transformed into carbon dioxide and water vapour by catalyzer 28 oxidations.And the NOx that is contained in the waste gas (nitrogen oxide) is reduced by catalyzer 28.In order efficiently to utilize the catharsis of this catalyzer 28, relief opening one side of the motor 12 in outlet pipe 18 connects an end that is used for secondary air is imported the secondary air importing road 32 of outlet pipe 18.The other end that secondary air imports road 32 is connected on the air-strainer 26, and the extraneous gas after being purified by this air-strainer 26 imports the upstream side that road 32 flow into the catalyzer 28 of outlet pipe 18 by secondary air.So the oxygen amount of outlet pipe 18 increases, the air fuel ratio of exhaust raises.Consequently, the catharsis of catalyzer 28 can effectively carry out.In addition, the part midway on secondary air importing road 32 is equipped with the secondary air control valve 34 of electromagnetic type, can make this secondary air control valve 34 form open states according to the control of ECU42, or form closed condition on the contrary.And, the state (open state or closed condition etc.) of secondary air control valve 34 is inputed to ECU42.And, catalyst-temperature pickup 30 is installed, on the catalyzer 28 so that detect the temperature of catalyzer 28.This catalyst temperature inputs to ECU42.
In addition, this motor 12 is a water-cooled, also is provided with the cooling-water temperature sensor 38 that is used to measure cooling water temperature.Also input to ECU42 by cooling-water temperature sensor 38 obtained cooling water temperatures.In addition, be fixed with crank pulse sensor 36 in crank 14 sides of motor 12.On crank 14, on the periphery of 30 degree (as shown in Figure 3, only lacking 150 ° position), be formed with jut along sense of rotation, comprise coil etc. and the crank pulse sensor 36 that constitutes detects the arrival of this jut, detect the crank angle thus.Also input to ECU42 by crank pulse sensor 36 detected crank pulses.
ECU42 is the known control computer that comprises that CPU, ROM, RAM etc. form, as mentioned above, control the fuel injection amount of fuel injection system 21 according to the information of importing by each several part, and the crank pulse of exporting according to crank pulse sensor 36 and calculate the rotating speed of motor is misfired thereby detect motor 12 according to its variable quantity.And the testing result of misfiring of corresponding motor 12 makes the bright lamp of MIL44.And, utilize ECU42, according to judging whether closure 22 is operated continually by intake manifold pressure sensor 40 detected suction presss.And, when judging when having carried out operation continually, suppress the bright lamp of the corresponding MIL44 that detects of misfiring.
And, when judging whether to make the bright lamp of MIL44, when judging the exhaust deterioration, be that open state or closed condition change judgment standard according to secondary air control valve 34.Therefore, can consider to import outlet pipe 18 (especially arriving catalyzer 28) gas air fuel ratio and accurately judge the deterioration of exhaust.And as described later, the air fuel ratio that imports the gas of outlet pipe 18 also can change along with rotating speed, the suction press of motor 12.Therefore, in the present embodiment, also change judgment standard when judging that exhaust worsens according to rotating speed, the suction press of motor 12.In addition, MIL44 is made of electric light bulb or LED, under the control of ECU42 bright lamp, glisten or extinguish.
Here, the various functions of utilizing ECU42 to realize are described.Fig. 4 is the functional block diagram that expression utilizes the various function relationship that ECU42 realizes.In Fig. 4, the function involved in the present invention in the multiple function that ECU42 had is represented.These functions are to read and carry out the control program of being stored among the ROM (storage medium) that is built among this ECU42 by ECU42 to realize.
As shown in Figure 4, from functional perspective, ECU42 comprises: experience memory section 42a, load change detection unit 42b, the detection unit 42c that misfires, load sign memory section 42d, the sign buffer-stored of the misfiring 42e of portion, vehicle control section 42f, exhaust worsen judging part 42g, the frequency threshold calculations of the misfiring 42h of portion and chart memory section 42i.
The detection unit 42c that misfires at each engine cycles, detects misfiring of motor 12 according to the variation of the rotating speed (rotational speed) of motor 12.Particularly, calculate rotating speed poor of rotating speed and the motor 12 at predetermined place, the 2nd crank angle of the motor 12 at predetermined place, the 1st crank angle, whether be equal to or less than the threshold value Δ Ne_thres that reads from chart shown in Figure 5 according to this speed discrepancy, judge to have or not and misfire.Afterwards, this judged result is flowed to successively exhaust and worsen judging part 42g.Exhaust worsens judging part 42g to be revised after this value as required, and it is stored among the sign buffer-stored 42e of portion that misfires successively.In the detection unit 42c that misfires, when being judged as normal combustion, the sign F_mf=0 that will misfire flows to exhaust and worsens judging part 42g, and when being judged as when misfiring, the sign F_mf=1 that will misfire flows to exhaust and worsens judging part 42g.In addition, the detection unit 42c that misfires comprises that storing mechanism forms, and stores the chart (Fig. 5) of the relation of the rotating speed of representing threshold value Δ Ne_thres, suction press and motor 12 in this storing mechanism.And, in same chart, with reference to by the detected suction press of intake manifold pressure sensor 40 with based on rotating speed, read and be used to the above-mentioned threshold value Δ Ne_thres that misfires and judge by the detected motor that crank pulse calculated 12 of crank pulse sensor 36.
The sign buffer-stored of the misfiring 42e of portion, the sign of misfiring of storing predetermined number, when the sign of misfiring that is generated as the detection unit 42c that misfires surpasses this predetermined number, from the sign beginning deletion successively of misfiring of original stored, so that store the newly-generated sign of misfiring.So, can be from the sign of misfiring of up-to-date generation, the sign of misfiring with predetermined number stores among the sign buffer-stored 42e of portion that misfires successively.
Load change detection unit 42b obtains suction press successively from intake manifold pressure sensor 40, changes and the throttle opening interlock data that change as the aperture of the closure 22 of corresponding motor 12.Afterwards, vehicle control section 42f limits the processing of the bright lamp of MIL44 according to the suction press of obtaining successively.That is,, estimate whether this suction press (being throttle opening) violent change has taken place according to the suction press of obtaining successively.Afterwards, when being estimated as when violent change has taken place, then limiting exhaust and worsen judging part 42g and be judged as exhaust and worsen., the sign F_mf that misfires that is stored among the sign buffer-stored 42e of portion that misfires all is reset to 0 here, prevents that exhaust from worsening judging part 42g and being judged as the exhaust deterioration during current.Therefore, load change detection unit 42b when being estimated as suction press and acutely changing, then is stored in load sign F_LF=1 among the load sign memory section 42d.And, when being estimated as suction press and acutely not changing, then load sign F_LF=0 is stored among the load sign memory section 42d.Exist the advisory supply and exhaust of fierce change to worsen judging part 42g closure 22 by this load sign F_LF from load change detection unit 42b.
Experience memory section 42a, the variation data (Δ P described later) of the suction press that load change detection unit 42b is generated in load change detects processing procedure begin only storing predetermined successively number (the variation data of the amount of preset engine period) from newly-generated variation data.In load change detection unit 42b, in the variation data of this predetermined number, deduct minimum value, thereby generate the amplitude of variation data (Δ Δ Pm described later) of suction press from maximum value.
Exhaust worsens judging part 42g, the storage that two signs of misfiring being stored among the sign buffer-stored 42e of portion that misfires are stored into the sign buffer-stored 42e of portion that misfires regularly poor, promptly the period (following CNTR) of misfiring is counted, and judges whether this value is equal to or less than the following frequency threshold CNTR_thres that misfires.And the frequency that a period CNTR that misfires is equal to or less than the frequency threshold CNTR_thres that misfires misfire (short time misfires again) is estimated, infers that thus exhaust worsens.And, when inferring that exhaust worsens, then to the bright lamp of vehicle control section 42f indication MIL44.In addition, exhaust worsens judging part 42g, read the load sign F_LF that is stored among the load sign memory section 42d at each engine cycles, acutely change if this value is 1, promptly be judged as closure 22, the misfiring sign that then will be stored among the sign buffer-stored 42e of portion that misfires all is reset to 0, prevents MIL44 bright lamp during current.
Vehicle control section 42f controls the control of fuel injection system 21 etc., and the each several part of bestride type vehicle is controlled.Especially, make the bright lamp of MIL44 according to the indication that worsens judging part 42g from exhaust here.
The frequency threshold calculating part 42h that misfires calculates at exhaust worsens among the judging part 42g and a period CNTR that misfires compares the frequency threshold CNTR_thres that misfires., when engine speed is big, be called as misfiring that the short time misfires again easily here, generate the frequency threshold CNTR_thres that misfires of value greatly.This be because, when engine speed was big, the quantitative change of secondary air that imports outlet pipe 18 because of fluctuation was few, consequently, the trend that the air fuel ratio that produces outlet pipe 18 reduces, the catharsis of catalyzer 28 reduces.
And when suction press was big, what be called as easily similarly that the short time misfires again misfired the frequency threshold CNTR_thres that misfires of generation higher value.This be because, generally speaking, when suction press is big, the vent systems air fuel ratio reduces more, the control that implementation makes many more fuel spray from fuel injection system 21, a large amount of waste gas flows into outlet pipe 18, and the amount of the secondary air of importing outlet pipe 18 is limited, consequently, there is the trend that air fuel ratio in the outlet pipe 18 reduces, the catharsis of catalyzer 28 reduces.
When secondary air control valve 34 is open, difficultly be called as misfiring that the short time misfires again, generate the frequency threshold CNTR_thres that misfires of little value.This be because, when secondary air control valve 34 was open, secondary air was directed in the outlet pipe 18, the catharsis of catalyzer 28 is bigger.
And, when the temperature of the cooling water of motor 12 is higher, similarly be difficult for being called as misfiring that the short time misfires again, generate the frequency threshold CNTR_thres that misfires of little value.This is because when the temperature of the cooling water of motor 12 was higher, the temperature of catalyzer 28 was generally also higher, so the catharsis of catalyzer 28 is bigger.
On the contrary, the fuel injection amount that sprays when fuel injection system 21 is called as misfiring that the short time misfires again more easily, generates the frequency threshold CNTR_thres that misfires of value greatly.Can think this be because, when fuel injection amount more for a long time, the unburned or the unburnt gas that surpass the purifying ability of catalyzer 28 have flowed into catalyzer 28.
As mentioned above, chart memory section 42i stores and is used to generate the chart of various necessity of frequency threshold CNTR_thres of misfiring.That is, in chart memory section 42i, store Fig. 6 to chart group shown in Figure 10.Chart shown in Figure 6 is the chart of the relation of vent systems air fuel ratio (guess value), engine speed and suction press when expression secondary air control valve 34 is opened.Chart shown in Figure 7 is the chart of the relation of vent systems air fuel ratio (guess value), engine speed and suction press when expression secondary air control valve 34 is closed.Chart shown in Figure 8 is the chart of the relation of expression coefficient of purification kc and vent systems air fuel ratio (guess value).Chart shown in Figure 9 is, the misfire chart of relation of the basic threshold value CNTRB of a period CNTR and fuel injection amount of expression.And icon shown in Figure 10 is the chart of the relation of expression water temperature correction factor kw and engine cooling water temperature.
Here, the detection of misfiring that the detection unit 42c that misfires is carried out is handled and is described.Figure 11 is the flow chart that this detection of misfiring of expression is handled.Processing shown in this figure and is compared during the engine cycles of motor 12, carries out repeatedly every the extremely short time lag.
In this is handled, at first, judge whether the crank angle CA of crank 14 is 0 ° (S101).At this moment, judge crank angle CA according to the crank pulse of being exported by crank pulse sensor 36.Afterwards, if crank angle CA is not 0 °, then enter step S103.On the contrary, if crank angle CA is 0 °, then store engine speed Ne at this moment into variable N0 (S102).Can make the detection unit 42c that misfires obtain engine speed Ne by the time lag of measuring the crank pulse of being exported by crank pulse sensor 36.
Then, judge whether crank angle CA is 180 ° (S103).Afterwards, if be not 180 °, the then temporary transient detection that stops misfiring is handled.On the contrary, if be 180 °, then store engine speed at this moment among the variable N180 (S104).Afterwards, from the value of this variable N180, deduct the value of the variable N0 that has stored, thereby calculate rotating speed raising amount Δ Ne (S105).
Next, motor 12 is judged, judged whether to implement fuel cut-off (S106) by current ECU42.If implementing fuel cut-off, then improper and detections of not misfiring of the timing that detects as misfiring stored into to misfire with 0 and indicated among the F_mf (S110).On the contrary, implement the fuel cut-off process, judge then whether current operation range belongs to detection prohibited area (S107) if be in.Detect prohibited area, be configured to high rotary area and low load (low suction press).This be because, in high rotary area, because effect of inertia is in crank 14, thereby the rotating speed of motor 12 tails off, detection is difficult to misfire.Also because when hanging down load, similarly the rotating speed of explosion stroke improves lessly, thereby also is difficult to the detection of misfiring.When current operation range belongs to the detection prohibited area, store among the sign F_mf that misfires (S110) 0 equally.
On the other hand, when current operation range does not belong to the detection prohibited area, judge whether the rotating speed raising amount Δ Ne that calculates has surpassed the threshold value Δ Ne_thres (S108) that obtains from chart shown in Figure 5 in S105.And, when surpassing threshold value Δ Ne_thres, store among the sign F_mf that misfires (S110) 0, stop misfiring detecting and handle.On the contrary, when not surpassing threshold value Δ Ne_thres, then store among the sign F_mf that misfires (S109) 1, still stopping misfires detects processing.
Adopt this to misfire and detect processing, can be at each engine cycles, whether the variable quantity of engine speed surpasses threshold value Δ Ne_thres according to this rotating speed raising amount and sets the sign F_mf that misfires as rotating speed raising amount Δ Ne when calculating the crank angle and be 0 ° and 180 °.At this moment, irrelevant with the value of rotating speed raising amount Δ Ne in the fuel cut-off process and in the operation process in the detection prohibited area, the sign F_mf that will misfire is set at 0, so can realize the detection of misfiring that reliability is higher.In addition, in the above description,, also can be predetermined value though all from chart shown in Figure 5, draw threshold value Δ Ne_thres each time.
Then, the load change that load change detection unit 42b is carried out detects to handle and describes.Figure 12 is that this load change of expression detects the flow chart of handling.Processing shown in this figure, also be with an engine cycles of motor 12 during compare, carry out repeatedly every the extremely short time lag.
In this is handled, at first, judge whether current crank angle CA is the crank angle CA_id (S201) that is scheduled to.Afterwards, if be not predetermined crank angle CA_id, the load change that then stops this detects to be handled.On the contrary, if be predetermined crank angle CA_id, then then obtain by the detected suction press Pm (S202) of intake manifold pressure sensor 40.Afterwards, this suction press Pm is implemented smoothing and handle (S203).Particularly, calculate the suction press Pave that smoothing disposes according to following formula.
Pave(k)＝λPm(k)+(1-λ)Pave(k-1)
Wherein, λ is more than or equal to 0 and less than 1 constant, and Pm (k) detects the suction press of obtaining among the S202 that handles for the load change at this.In addition, the suction press Pave that Pave (k) finishes for the smoothing processing that is calculated among the S203 that detect to handle at this load change, Pave (k-1) detect the suction press Pave that the smoothing of having calculated among the S203 that handles disposes at last load change once.
Then, in load change detection unit 42b, from the suction press Pm that among S201, obtains, deduct the suction press Pave that this smoothing processing that is calculated finishes in S203, thereby calculate the variation data Δ P (S204) of suction press.The variation data Δ P that calculates like this is stored among the experience memory section 42a.And, in load change detection unit 42b, search largest and minimum value (S205) in the variation data of the amount of the preset engine period from be stored in experience memory section 42a.Afterwards, judge that whether maximum value Δ Pmax is negative or whether minimum value Δ Pmin is just (S206).If maximum value Δ Pmax is for negative, then variation data Δ P reduces on predetermined engine cycles number, if minimum value Δ Pmin is for just, then variation data Δ P increases on predetermined engine cycles number, no matter which kind of situation all is set at 0 (S208) with amplitude of fluctuation data Δ Δ Pm.On the contrary, if maximum value Δ Pmax is not for bearing, perhaps minimum value Δ Pmin then deducts minimum value Δ Pmin not for just from maximum value Δ Pmax, thereby calculates amplitude of fluctuation data Δ Δ Pm (S207).
And, judge that whether the amplitude of fluctuation data Δ Δ Pm that obtains like this is greater than predetermined threshold value Pthres (S209).If greater than predetermined threshold value Pthres, be estimated as then that suction press (being accelerator open degree) has produced than cataclysm between predetermined engine cycles number, make the load counter cnt add 1 (S210).On the contrary, when being equal to or less than predetermined threshold value Pthres, then make the load counter cnt subtract 1 (S211).In addition, be preferably on the load counter cnt upper and lower bound is set.
In addition, in load change detection unit 42b, judge that whether the load counter cnt is greater than predetermined threshold value CNT_thres (S212).Afterwards, if greater than predetermined threshold value CNT_thres, then set load sign F_LF for 1 (S213), and this value is stored among the load sign memory section 42d, the terminate load change detects to be handled.In addition, if be equal to or less than predetermined threshold value CNT_thres, set load sign F_LF for 0 (S214), and this value is stored among the load sign memory section 42d, the terminate load change detects to be handled.
Adopt this load change to detect and handle, at each engine cycles, F_LF is updated to up-to-date value with the load sign, and stores among the load sign memory section 42d.At this moment,, estimate the amplitude of fluctuation of the suction press in the predetermined engine cycles number so far, the load counter cnt is increased and decreased according to its size at each engine cycles.And, when the load counter cnt surpasses threshold value CNT_thres, the load sign is set at 1.Consequently, when the bigger state of the amplitude of fluctuation of suction press continues to a certain extent, then set the load sign for 1, in addition, all the load sign is set at 1.Thus, can be necessary and set the load sign for 1 in the scope fully, inferior limit ground suppresses 44 the bright lamp restriction of MIL.
Then, the exhaust deterioration judgment processing that exhaust deterioration judging part 42g is carried out describes.Figure 13 to Figure 15 is the flow chart that this exhaust of expression worsens judgment processing.Processing shown in the above-mentioned accompanying drawing, also be with an engine cycles of motor 12 during compare, carry out repeatedly every extremely short time lag.
In this is handled, judge at first whether current crank angle CA is the crank angle CA_rt (S301) that is scheduled to.Afterwards, if be not predetermined crank angle CA_rt, then stop exhaust and worsen judgment processing.On the contrary, if, then read the load sign F_LF that is stored among the load sign memory section 42d, find out whether this value is 1 (S302) for predetermined crank angle CA_rt.And if this value is 1, all sign F_mf that misfire that then will be stored among the sign buffer-stored 42e of portion that misfires make 0 (S303) into.And the up-to-date sign F_mf that misfires that will calculate in the detection unit 42c that misfires also makes 0 (S304) into.If this value is not 1, the processing of then skipping S303 and S304.
Then, exhaust worsens judging part 42g, will be stored among the sign buffer-stored 42e of portion that misfires (S305) by the up-to-date sign F_mf that misfires that the detection unit 42c that misfires is carried.Afterwards, read the oldest sign F_mf that misfires that being stored among the sign buffer-stored 42e of portion that misfires, i.e. the sign F_mf that misfires before the engine cycles number identical, judge whether this value is 1 (S306) with the storage number of the sign of misfiring of the sign buffer-stored 42e of portion that misfires.And, if this value is not 1, then make a period CNTR that misfires add 1 (S307, Figure 14).And, if a period CNTR that misfires does not reach CLV ceiling limit value CNTR_max (S308), then stop exhaust and worsen judgment processing.A period CNTR is equal to or greater than CLV ceiling limit value CNTR_max if misfire, a period CNTR that then will misfire sets CLV ceiling limit value CNTR_max (S309) for, and after the value of the NG counter cnt RR that will misfire is reset to 0 (S310), stops exhaust and worsen judgment processing.
On the other hand, if the value in the S306 of Figure 13 is 1, judge then whether a period CNTR that misfires is equal to or less than the predetermined frequency threshold CNTR_thres (S311) that misfires.A period CNTR misfires, processing by S307, S309 or S317 described later is upgraded, say in principle, a period CNTR that misfires who reads in S311 is, the engine cycles that generates the misfiring sign F_mf of oldest stored in the sign buffer-stored 42e of portion that misfires with before the generation value be 1 the engine cycles number between the engine cycles that indicates F_mf of misfiring.In S311, a period CNTR is equal to or less than the predetermined frequency threshold CNTR_thres that misfires if this is misfired, and then makes the NG counter cnt RR that misfires add 1 (S312).On the contrary, if, then make the NG counter cnt RR that misfires subtract 1 (S313) greater than the predetermined frequency threshold CNTR_thres that misfires.That is, the NG counter cnt RR that misfires can upgrade along with the situation of misfiring, and misfires for the short time if this is misfired again, and then adds 1; Misfire again if not the short time, then subtract 1.Worsen among the judging part 42g in exhaust, afterwards, judge whether the NG counter cnt RR that misfires is equal to or greater than threshold value CNTRR_thres (S314).Afterwards,, then warning sign F_MIL is set for 1 (S315),, then warning sign F_MIL is set for 0 (S316) if do not reach threshold value CNTRR_thres if be equal to or greater than threshold value CNTRR_thres.Then, a period CNTR that will misfire is reset to 0, stops exhaust and worsens judgment processing (S317).Warning sign F_MIL is regularly read by vehicle control section 42f, if warning sign F_MIL is 1, and the bright lamp of MIL44 then.
Worsen judgment processing according to this exhaust,,, then reset the content of the sign buffer-stored 42e of portion that misfires if this value is 1 at each engine cycles verification load sign F_LF.Thus, F_LF is set at 1 when the load sign, and is judged as closure 22 when frequently being operated, and can prevent to set warning sign F_MIL for 1 according to the memory contents among the sign buffer-stored 42e of portion that misfires.Thus, when being judged as closure 22 when frequently being operated, suppress the bright lamp of MIL44.
And, worsen in the judgment processing in above-mentioned exhaust, to misfire at every turn, the engine cycles number between promptly this being misfired and misfiring next time is counted, and should value count CNTR as an engine cycles of misfiring.And, misfire at every turn, if the short time of taking place once more in the short time after misfiring last time of this time misfiring misfires again, then make the NG counter cnt RR that misfires add 1, if not, then make the NG counter cnt RR that misfires subtract 1.Consequently, correspondence belongs to that the short time misfires again misfire number of times with do not belong to the number of times of misfiring that the short time misfires again, the NG counter cnt RR that misfires is increased and decreased, belong to what of the number of times of misfiring that the short time misfires again thereby can estimate rightly according to this size of misfiring NG counter cnt RR.
Then, the frequency threshold computing of misfiring that the frequency threshold calculating part 42h that misfires is carried out describes.The size of the above-mentioned frequency threshold CNTR_thres that misfires and the NG counter cnt RR that misfires reach higher value (being the easy bright lamp of MIL44) easily still to be difficult for reaching higher value (being that MIL44 is difficult for bright lamp) relevant.In the frequency threshold calculating part 42h that misfires, utilize various data computation to go out the value of this frequency threshold CNTR_thres that misfires.Figure 16 is the flow chart that expression is used to calculate the frequency threshold computing of misfiring of this frequency threshold CNTR_thres that misfires.Processing shown in this figure, also be with an engine cycles of motor 12 during compare, carry out repeatedly every the extremely short time lag.
In this is handled, at first obtain the temperature of catalyzer 28, and judge whether this temperature is equal to or less than predetermined permissible temperature (S401) from catalyst-temperature pickup 30.And when the temperature of catalyzer 28 during greater than predetermined permissible temperature, the value of the frequency threshold CNTR_thres that will misfire is set predetermined value C (S408), termination for.Predetermined value C can be very large value, thereby makes the bright lamp of MIL44 easily.In addition, can be very little value also, and make MIL44 be difficult for bright lamp or can not bright lamp.
On the contrary, if the temperature of catalyzer 28 is equal to or less than predetermined permissible temperature, then then obtaining secondary air control valve 34 still is closed condition (S402) for open state.Then, from be stored in chart memory section 42i, in Fig. 4 and the chart shown in Figure 5, obtain vent systems air fuel ratio (S403) according to the chart corresponding with the state of secondary air control valve 34.That is, obtain engine speed Ne and suction press, read the vent systems air fuel ratio (guess value) corresponding with above-mentioned value according to chart.As shown in Figure 4 and Figure 5, when secondary air control valve 34 is in open state, obtain the vent systems air fuel ratio of higher value; On the contrary, when being in closed condition, obtain the vent systems air fuel ratio of smaller value.In either case, all be that engine speed Ne is big more, the value of obtained vent systems air fuel ratio is big more.And suction press is big more, and the value of obtained vent systems air fuel ratio is big more.
Then, in the frequency threshold computing of misfiring,, obtain the coefficient of purification kc (S404) corresponding with the vent systems air fuel ratio that in S403, draws according to chart shown in Figure 8.And,, obtain the basic threshold value CNTRB (S405) corresponding with the current fuel injection amount of fuel injection system 21 according to chart shown in Figure 9.And, according to chart shown in Figure 10, obtain the corresponding water temperature correction factor kw (S406) of Current Temperatures with the cooling water of motor 12.
Afterwards, utilize the frequency threshold calculating part 42h that misfires, calculate the frequency threshold CNTR_thres (S407) that misfires, stop computing by the value that obtains among the S404 to S406 is multiplied each other.
By this frequency threshold computing of misfiring, especially can obtain following three data as with the relevant air fuel ratio related data of air fuel ratio of the outlet pipe 18 of the waste gas circulation that is used to make motor 12: the rotating speed of the motor 12 that draws according to the detected crank pulse of crank pulse sensor 36, by the interior pressure of the detected suction tude 20 of intake manifold pressure sensor 40 and the open and-shut mode of secondary air control valve 34, can obtain according to above data the air that imports outlet pipe 18 and fuel ratio, be the guess value of vent systems air fuel ratio.And, can calculate the frequency threshold CNTR_thres that misfires according to the guess value of this vent systems air fuel ratio.
According to the engine control system 10 of above explanation,, judge exactly so can consider the purifying ability of catalyzer 28 owing to adopt the frequency threshold CNTR_thres that misfires calculate like this to judge the deterioration of exhaust as benchmark.Consequently, can make the bright lamp of MIL44 with high reliability.
In addition, in the above description, though adopt suction press as the throttle opening interlock data that change along with the variation of closure 22, because suction press and the mutual interlock of outlet pipe pressure, thereby also can adopt outlet pipe pressure as throttle opening interlock data.And, owing in engine control system 10, be provided with throttle sensor 24, thus can with by the aperture of the detected closure 22 of this throttle sensor 24 directly as throttle opening interlock data.Under above situation, also can directly suction press be replaced to outlet pipe pressure or throttle opening in the above description.
The setting of the load sign F_LF of load change detection unit 42b is not limited to above processing, also can adopt other the whole bag of tricks.And, in the above description, though the corresponding warning sign F_MIL of vehicle control section 42f makes the bright lamp of MIL44, operation range that also can corresponding warning sign F_MIL limiting engine 12.For example, can the upper limit be set by rotating speed, or throttle opening is provided with restriction, or fuel injection amount is provided with restriction, prevent that exhaust from continuing to worsen motor 12.
In the above description, the sign buffer-stored 42e of portion though corresponding load sign F_LF and reseting misfires so that MIL44 is difficult for bright lamp, also can be directly limits bright lamp of MIL44 such as (forbid) to vehicle control section 42f indication.In addition, also can make the detection unit 42c that the misfires detection that stops to misfire.
The invention is not restricted to above-mentioned mode of execution.
For example, in the above description, carry out the bright lamp restriction of MIL44 though consider secondary air control valve 34 information open or that close, also can consider secondary air control valve 34 degree of opening, be that the bright lamp that the import volume (for example valve events amount) of secondary air carries out MIL44 limits.
And the related data of the oxygen amount of importing outlet pipe 18 is not limited to above-mentioned data, in addition, can also adopt the interior pressure of outlet pipe 18.And, can be provided for detecting lambda sensor at the upstream side (motor 12 1 sides) of the catalyzer in the outlet pipe 18 28 in the oxygen amount of the waste gas of outlet pipe 18 internal circulations, utilize the output of this lambda sensor to carry out the bright lamp restriction of MIL44.
In addition, detections of misfiring that utilizes the detection unit 42c that misfires to carry out is not limited to the method that the rotating speed of monitoring engine 12 changes, and also can adopt additive method.For example, also the ionic current testing circuit can be set, detecting the ion produced when in firing chamber 16, burning, by the detection of misfiring of this ionic current testing circuit.And, also can be provided for the internal pressure of the cylinder of detection of engine 12, the sensor of inside temperature, utilize the detection of misfiring of these sensors.
Claims (10)
1. the detection device of misfiring of a motor is characterized in that,
Have: the feeler mechanism of misfiring of misfiring that is used for detection of engine;
The corresponding output mechanism of exporting by the resulting testing result of misfiring of the described feeler mechanism of misfiring;
The air fuel ratio related data obtains mechanism, and it obtains the relevant air fuel ratio related data of air fuel ratio of the vent systems that circulates with the exhaust that is used to make described motor; And
Export-restriction mechanism, its correspondence obtains the obtained air fuel ratio related data of mechanism by described air fuel ratio related data and limits the output of described output mechanism.
2. the detection device of misfiring of motor as claimed in claim 1 is characterized in that,
Has catalyzer in the described vent systems.
3. the detection device of misfiring of motor as claimed in claim 1 or 2 is characterized in that, described air fuel ratio related data is the data of the rotating speed of the described motor of expression.
4. as the detection device of misfiring of each described motor in the claim 1 to 3, it is characterized in that,
Described motor has the secondary air introducing mechanism that is used for secondary air is imported to described vent systems;
Described air fuel ratio related data is that expression has or not the import volume that imports described secondary air or described secondary air by described secondary air introducing mechanism.
5. as the detection device of misfiring of each described motor in the claim 1 to 4, it is characterized in that,
Described air fuel ratio related data is the data of the interior pressure of the included outlet pipe of the described vent systems of expression.
6. as the detection device of misfiring of each described motor in the claim 1 to 4, it is characterized in that,
Described motor has air is imported suction tude in the firing chamber of described motor;
Described air fuel ratio related data is the data of the interior pressure of the described suction tude of expression.
7. as the detection device of misfiring of each described motor in the claim 1 to 6, it is characterized in that,
Described output is the bright lamp or the flash of light of emergency warning lamp.
8. as the detection device of misfiring of each described motor in the claim 1 to 6, it is characterized in that,
Described output is the motion limits of described motor.
9. bestride type vehicle has the detection device of misfiring of each described motor in the claim 1 to 8.
10. the detecting method of misfiring of a motor is characterized in that, comprising:
The detection step of misfiring of misfiring of detection of engine;
The output step that the corresponding testing result of misfiring that draws in the described detection step of misfiring is exported;
The air fuel ratio related data that obtains the relevant air fuel ratio related data of the air fuel ratio of the vent systems that circulates with the exhaust that is used to make described motor obtains step; And
Correspondence obtains the air fuel ratio related data that obtains in the step in described air fuel ratio related data, limits the export-restriction step of the output in the described output step.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004375714A JP2006183502A (en) | 2004-12-27 | 2004-12-27 | Misfire detecting device and method of engine and saddle-riding type vehicle |
| JP375714/2004 | 2004-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796732A true CN1796732A (en) | 2006-07-05 |
| CN100406705C CN100406705C (en) | 2008-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101356391A Expired - Fee Related CN100406705C (en) | 2004-12-27 | 2005-12-27 | Detection device and method for engine misfiring, cross-ride vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2006183502A (en) |
| CN (1) | CN100406705C (en) |
| TW (1) | TW200636153A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561400A (en) * | 2019-02-13 | 2020-08-21 | Fca意大利股份公司 | System and method for controlling emissions of a spark-ignition internal combustion engine of a motor vehicle |
| CN111608813A (en) * | 2020-05-22 | 2020-09-01 | 一汽解放汽车有限公司 | Engine exhaust temperature management method and device and engine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5778947B2 (en) * | 2011-03-02 | 2015-09-16 | 本田技研工業株式会社 | Exhaust gas purification device for saddle-ride type vehicles |
| JP2015129442A (en) | 2014-01-06 | 2015-07-16 | ヤマハ発動機株式会社 | Saddle ride vehicle |
| JP6395116B2 (en) | 2016-03-23 | 2018-09-26 | マツダ株式会社 | Engine misfire determination device |
| JP6708291B1 (en) * | 2019-08-30 | 2020-06-10 | トヨタ自動車株式会社 | Internal combustion engine state determination device, internal combustion engine state determination system, data analysis device, and internal combustion engine control device |
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| JPH0447643U (en) * | 1990-08-29 | 1992-04-22 | ||
| DE4035958A1 (en) * | 1990-11-09 | 1992-05-14 | Bosch Gmbh Robert | IGNITION AND / OR INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES |
| JPH04262039A (en) * | 1991-02-18 | 1992-09-17 | Mitsubishi Electric Corp | Misfire detecting device for internal combustion engine |
| JPH05133271A (en) * | 1991-11-14 | 1993-05-28 | Tokyo Gas Co Ltd | Misfire detecting method and device for gas engine |
| JP2761999B2 (en) * | 1992-05-18 | 1998-06-04 | 本田技研工業株式会社 | Misfire detection device for internal combustion engine |
| CN2178785Y (en) * | 1993-10-04 | 1994-10-05 | 许益诚 | Secondary air guide and cutting device for engine |
| JPH0861131A (en) * | 1994-08-10 | 1996-03-05 | Yamaha Motor Co Ltd | Irregular combustion reducing device for two-cycle engine |
| JP3161239B2 (en) * | 1994-08-29 | 2001-04-25 | トヨタ自動車株式会社 | Air-fuel ratio control device for internal combustion engine |
| JPH0972268A (en) * | 1995-09-06 | 1997-03-18 | Nissan Motor Co Ltd | Misfire detecting device of internal combustion engine |
| JP3663944B2 (en) * | 1998-12-08 | 2005-06-22 | 日産自動車株式会社 | Engine misfire diagnostic device |
| JP4453061B2 (en) * | 2000-10-24 | 2010-04-21 | 株式会社デンソー | Control device for internal combustion engine |
| JP2003138979A (en) * | 2001-10-30 | 2003-05-14 | Mitsubishi Electric Corp | Misfire detecting device of internal combustion engine |
| JP3706335B2 (en) * | 2001-12-12 | 2005-10-12 | 本田技研工業株式会社 | Internal combustion engine failure determination device |
| JP2004100520A (en) * | 2002-09-06 | 2004-04-02 | Toyota Motor Corp | Misfire detector of internal combustion engine |
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- 2004-12-27 JP JP2004375714A patent/JP2006183502A/en active Pending
-
2005
- 2005-12-20 TW TW094145373A patent/TW200636153A/en not_active IP Right Cessation
- 2005-12-27 CN CNB2005101356391A patent/CN100406705C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561400A (en) * | 2019-02-13 | 2020-08-21 | Fca意大利股份公司 | System and method for controlling emissions of a spark-ignition internal combustion engine of a motor vehicle |
| CN111561400B (en) * | 2019-02-13 | 2023-12-08 | Fca意大利股份公司 | System and method for controlling emissions of a spark-ignition internal combustion engine of a motor vehicle |
| CN111608813A (en) * | 2020-05-22 | 2020-09-01 | 一汽解放汽车有限公司 | Engine exhaust temperature management method and device and engine |
| CN111608813B (en) * | 2020-05-22 | 2022-09-30 | 一汽解放汽车有限公司 | Engine exhaust temperature management method and device and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100406705C (en) | 2008-07-30 |
| TWI308612B (en) | 2009-04-11 |
| JP2006183502A (en) | 2006-07-13 |
| TW200636153A (en) | 2006-10-16 |
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