CN1438411A - Operation-state determining device for IC engine - Google Patents
Operation-state determining device for IC engine Download PDFInfo
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- CN1438411A CN1438411A CN 03104434 CN03104434A CN1438411A CN 1438411 A CN1438411 A CN 1438411A CN 03104434 CN03104434 CN 03104434 CN 03104434 A CN03104434 A CN 03104434A CN 1438411 A CN1438411 A CN 1438411A
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- combustion engine
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Abstract
Intake pressure in an intake passage (2) at a plurality of different predetermined crank angles which are set at the outer of an intake stroke in one combustion cycle of the internal combustion engine (1) is detected. The acceleration/deceleration state of the internal combustion engine (1) is determined based on a change amount from the last-time intake pressure to this-time intake pressure at the same crank angle. Therefore, even in simplified system configuration that does not have a throttle opening sensor, there are a plurality of time points for detecting the intake pressure in one combustion cycle of the internal combustion engine (1). The running state is determined based on a pressure change of other stroke except the intake stroke.
Description
Technical field
The present invention relates to a kind of running state that is used for internal-combustion engine and determine device, described device is used for determining the running state of internal-combustion engine at work, for example, so that control fuel injects and igniting.
Background of invention
The change of the throttle angle by detecting throttle valve determines that the running state of internal-combustion engine is known, and described throttle valve adjustment is drawn into the air in the motor, and the injection amount of correction fuel or ignition time point.Throttle angle is detected by the throttle angle detector that links to each other with the throttling axle of throttle valve.
Be configured under the situation about making by throttle angle detector detection throttle angle in system, the running state of motor can be determined according to the change amount of throttle angle.
Be configured with simple structure in system, wherein do not use under the situation of expensive throttle angle detector, can reduce cost widely.At this moment, use the change amount of suction pressure to be used for determining the method for engine operating state, and do not use the throttle angle detector as another kind.In the middle of known suction at motor, compression, acting (blast) and the exhaust stroke, big change takes place in the suction pressure in induction stroke.Therefore, if determine the running state of motor then to make running state be determined easily because having big change amount according to the suction pressure that in the induction stroke of a burning cycle of motor, detects at the preset detection time point.But, if the error of some change detection time and change amount increases, then determine to possible errors described running state.
Summary of the invention
The object of the present invention is to provide a kind of running state that is used for internal-combustion engine to determine device, described device can be determined the running state of motor quickly and accurately without the throttle angle detector.
According to the present invention, suction pressure in gas-entered passageway is detected at a plurality of predetermined crank corners in a burning cycle of motor, and the acceleration state of motor and lower state are determined by the previous suction pressure and the change amount between the current suction pressure that detect at identical crank angle or identical bent axle time point.Thereby because suction pressure is repeatedly detected in a burning cycle of motor, so the running state of motor can be determined apace.
Preferably, predetermined crank corner or crank angle time point promptly are set to several angle in compression stroke, expansion stroke or exhaust stroke in the outside of suction stroke.Thereby, because detection time point is set at compression stroke, expansion stroke or exhaust stroke,, can reduce because the error of the change amount that the change that suction pressure is put detection time causes so compare with detecting in suction stroke.
More particularly, the acceleration state of motor or lower state by the change amount between the previous suction pressure of each detection of a plurality of predetermined crank corners and current suction pressure and determine.
Description of drawings
Above and other objects of the present invention, feature and advantage are found out by the detailed description of carrying out with reference to the accompanying drawings with will be more readily apparent from.In the accompanying drawing:
Fig. 1 is the schematic representation that is used to represent motor and peripheral unit thereof, has wherein used according to the internal combustion engine operation state of the first embodiment of the present invention and has determined device;
Fig. 2 is the timing diagram that is illustrated in the transition state of suction pressure under the acceleration mode of motor;
Fig. 3 is illustrated in the flow chart that the fuel of carrying out among first embodiment injects the correction factor calculation program;
Fig. 4 represent with first embodiment in the fuel correspondingly carried out of the acceleration mode of motor inject the flow chart of correction factor calculation program;
Fig. 5 is the flow chart of the fuel injection correction factor calculation program that the deceleration regime of motor is correspondingly carried out among the expression and first embodiment;
Fig. 6 is the flow chart of the fuel injection correction factor calculation program that the lower state of motor is correspondingly carried out among the expression and first embodiment;
Fig. 7 is illustrated in the flow chart that the fuel of carrying out in the second embodiment of the present invention injects the correction factor calculation program; And
Fig. 8 is illustrated in the flow chart that the fuel of carrying out in the third embodiment of the present invention injects the correction factor calculation program.
Embodiment
(first embodiment)
Referring to Fig. 1, a kind of single-cylinder water-cooling motor is represented with label 1.Air is inhaled into the gas-entered passageway 2 of motor 1 from air cleaner 3.Provide throttle valve 11 at the middle part of gas-entered passageway 2, it is according to the operation open and close of accelerator pedal (not shown).The quantity of the air in the suction gas-entered passageway 2 changes according to the switching of throttle valve 11.Remove outside the inhaled air, also inject fuel near the injection syringe (fuel injection valve) 5 that the inlet 4 of gas-entered passageway 2, provides.Fuel and AIR MIXTURES suck firing chamber 7 by Aspirating valves 6.
In addition, suction pressure detector 21 is provided at the downstream of the throttle valve 11 at the middle part that is positioned at gas-entered passageway 2, is used for the suction pressure PM that detects at gas-entered passageway 2.Crank angle detector 22 is provided near the bent axle 12 of motor 1, is used to detect the crank angle [℃ A] that rotates corresponding to bent axle.The engine speed NE of the corner signal calculation engine 1 that produces according to crank angle detector 22.In addition, on motor 1, provide coolant temperature detector 23, be used to detect coolant temperature THW.
Spark plug 13 is provided on the direction of firing chamber 7 of motor.Synchronous with the crank angle that is detected by crank angle detector 22, response applies high voltage from spark coil/igniter 14 to spark plug 13 from the firing command signal of electronic control unit (ECU) 30, makes that the mixture ignition in the firing chamber 7 is burnt.When the mixture in firing chamber 7 during by ignition (blast), then produce driving force, and the waste gas after the burning is discharged into exhaust passageway 9 from outlet pipe by outlet valve 8, be discharged to the outside then.
As shown in Figure 2, under acceleration mode, the suction pressure PM[kPa of motor 1 (kPa)] change along the direction that increases.Though do not illustrate, under deceleration regime, the direction of the minimizing that suction pressure PM edge and acceleration mode are opposite changes.Wherein " n " among PMN and the Δ PMN represents 1,2,3, that is, and and PM1, Δ PM1, PM2, Δ PM2, PM3, Δ PM3.As shown in Figure 2, remove outside the suction stroke of motor 1, the predetermined crank corner is set to α [℃ A] with respect to the reference crank angle in compression stroke, at expansion stroke is β [℃ A], in exhaust stroke is γ [℃ A], promptly be set to 3 crank angles at a burning cycle (air-breathing, compression, acting and exhaust).
Referring to Fig. 3,, at first determine whether it is the detection timing of suction pressure PMN in step 101.In this step, specifically, determine whether it is predetermined crank corner α, β, and among the γ [℃ A] one, they are suction pressure PM1 (PM10) shown in Figure 2, some detection time of PM2 (PM20) and PM3 (PM30).If the testing result in step 101 is NO, promptly not the predetermined crank corner α that puts as the detection time of suction pressure PMN, β, and γ [℃ A] then finish this program implementation.
On the other hand, if are YES in definite result of step 101, i.e. predetermined crank corner α, β, and among the γ [℃ A] any one be some detection time of pressure of inspiration(Pi) PMN, then handles proceeding to step 102, reads suction pressure at this moment.In step 103,, calculate the change Δ PMN of suction pressure then by deduct the previous suction pressure PMNO of storage among RAM 33 from the current suction pressure PMN that reads in step 102.
Then in step 104, determine that whether the suction pressure that calculates in step 103 changes Δ PMN greater than the thresholding A in positive side, so that definite the acceleration, thereby determine that suction pressure shown in Figure 2 changes Δ PMN and whether to positive side the big change that positive side door is limit A taken place to surpass.If the definite result in step 104 is YES, i.e. the big change that positive side door is limit A has taken place to surpass to positive side in suction pressure change Δ PMN, then carries out the correction factor calculation program in step 105 according to the acceleration mode of motor.
On the other hand, if are NO in definite result of step 104, if promptly suction pressure changes Δ PMN less than positive side door limit A, then processing execution step 106 determines that whether suction pressure changes Δ PMN less than minus side thresholding B, slows down so that determine.If the definite result in step 106 is YES, that is, suction pressure changes Δ PMN and to minus side the big change of minus side thresholding B has taken place to surpass, and then handles and carry out step 107, carries out correction factor calculation according to deceleration regime.
On the other hand, if are NO, promptly in definite result of step 106, if be not less than minus side thresholding B, in other words suction pressure changes Δ PMN between positive side door limit A and minus side thresholding B, then handles and carry out step 108, and carry out the correction factor calculation program according to the stable state of motor 1.In step 105, after 107 or 108, handle and carry out step 109, by upgrading previous suction pressure PMNO, thereby finish this program at the current suction pressure of RAM33 stored.
After this program of execution, suction pressure PMN according to engine speed NE and motor 1 proofreaies and correct corresponding to the acceleration state of motor or the fuel injection correction factor of stable state in the basic fuelcarrying charge utilization that the main program (not shown) calculates in a known way, thereby regulates from the injection syringe 5 actual injection amounts of injecting.
Under the situation of acceleration mode, according to the fuel injection correction factor of Fig. 4 calculating corresponding to the acceleration mode of motor 1.In step 201, change Δ PMN by multiply by suction pressure with predetermined conversion gain C, and add according to parameter for example the corrected value D that is provided with of engine speed NE and coolant temperature THW calculate and quicken fuel and increase correction factor FACC.Then in step 202, by multiply by pressure change Δ PMN by predetermined conversion gain E, and add according to parameter for example the corrected value F that is provided with of engine speed NE and coolant temperature THW calculate asynchronous fuel correction factor TIASY.
Under the situation of deceleration regime, according to the fuel injection correction factor of Fig. 5 calculating corresponding to the deceleration regime of motor 1.In step 301, determine that whether suction pressure changes Δ PMN less than minus side thresholding G.Described minus side thresholding G is configured to bigger than the minus side thresholding B that uses in Fig. 3 step 106 along minus side.If the definite result in step 301 is YES, promptly suction pressure surpasses minus side thresholding G, then processing execution step 302 to the change Δ PMN of minus side.Thereby motor 1 is determined and is under the big deceleration regime, and the fuel shutoff supply, so as to end process.
On the other hand, if the definite result in step 301 is NO, promptly suction pressure changes Δ PMN and is in a side than minus side thresholding G corrigendum, and is not too big at minus side, then motor 1 is determined and is under the normal deceleration regime, and processing execution step 303.Change Δ PMN by multiply by suction pressure by predetermined conversion gain H, and add according to parameter for example the corrected value I that is provided with of engine speed NE and coolant temperature THW calculate deceleration fuel and reduce correction factor FDEC.
Under stable situation, according to the fuel injection correction factor of Fig. 6 calculating corresponding to the stable state of motor 1.In step 401, determine whether fuel source is cut off.If the definite result in step 401 is YES, promptly be in fuel cut off state, then carry out the processing of returning from fuel cut-off.On the other hand,, promptly be not in fuel cut off state, then handle skips steps 402 if are NO in definite result of step 401.
In step 403, determine that whether the acceleration fuel of storage in RAM 33 increases correction factor FACC greater than 0 then.If the definite result in step 403 is YES, promptly quicken fuel and increase correction factor FACC greater than 0, then handle and carry out step 404, make and to quicken fuel and increase correction factor and deduct, upgrade and quicken fuel increase correction factor according to the parameter corrected value K that is provided with of engine speed NE and coolant temperature THW for example by multiply by with predetermined gain J.On the other hand, if definite result of step 403 is NO, that is, quickening fuel increase correction factor FACC is 0, then handles skips steps 404.
In step 405, determine that whether the deceleration fuel of storage in RAM 33 reduces correction factor FDEC greater than 0 then.If definite result of step 405 is YES, the fuel that promptly slows down reduces correction factor FDEC greater than 0, then handle and carry out step 406, make and to reduce correction factor and deduct, upgrade deceleration fuel minimizing correction factor according to the parameter corrected value M that is provided with of engine speed NE and coolant temperature THW for example by multiply by deceleration fuel with predetermined gain L.On the other hand, if definite result of step 405 is NO, that is, it is 0 that deceleration fuel reduces correction factor FDEC, then handles skips steps 406, and finishes this program.
According to first embodiment, in a burning cycle of motor 1,, corresponding to the crank angle of some detection time, detect the suction pressure PMN in the gas-entered passageway 2 in the middle of the beta, gamma [℃ A] at a plurality of different crank angle α.Determine the acceleration state or the lower state of motor 1 according to the variation delta PMN between a preceding suction pressure PMNO who detects at same crank angle and the current suction pressure PMN.Thereby, because in a burning cycle of motor 1, have a plurality of somes detection time (α, beta, gamma) that are used to detect suction pressure, can determine the running state of motor 1 apace.
In addition, determine the predetermined crank corner α of device according to the running state of present embodiment, beta, gamma is set up in the compression stroke outside removing suction stroke, expansion stroke and the exhaust stroke respectively.Because be provided with in the compression stroke respectively outside removing suction stroke, expansion stroke and the exhaust stroke detect suction pressure time point, so can reduce because the error of the change amount that the difference of the time point of detection suction pressure produces.Thereby, even system does not utilize the throttle angle detector to be constituted simply, can determine accurately that also motor 1 is to be in the acceleration state or to be in lower state.
In the above-described embodiment, according in a burning cycle of motor 1 at crank angle α, β, the suction pressure PM1 that γ [℃ A] detects, each suction pressure Δ PM1 that detection time, point detected in the middle of PM2 and the PM3, Δ PM2, the change amount of Δ PM3 determines that motor 1 is to be in the acceleration state or to be in lower state.But, it is described definite to utilize a plurality of suction pressures changes to carry out, for example, and by utilizing determining of suction pressure change amount with next.Utilize the change amount and situation under, the determining of the running state of motor 1 is delayed a bit.But, this definite will be more accurate, and according to the change amount and can determine that more suitably fuel injects correction factor.
(second embodiment)
In a second embodiment, repeatedly carrying out the correction factor calculation program with synchronous each interruptions of the corner signal that produces by crank angle detector 22.
Specifically, as shown in Figure 7,, read out in the suction pressure PM on the identical crank angle in step 501.Then in step 502, in the suction pressure PM that step 501 is read is stored in the up-to-date suction pressure storage area of RAM 33 as current suction pressure PMa.In step 503, determine whether it is that acceleration is determined time point then.Described acceleration determines that time point refers to a plurality of different crank angle predetermined in a burning cycle of motor 1.If the definite result in step 503 is NO, promptly not that acceleration is determined time point, then this program is not carried out any other step and is stopped.
On the other hand, if are YES, that is, be that acceleration is determined time point in definite result of step 503, then handle and carry out step 504, make and calculate suction pressure and change Δ PM by from current suction pressure PMa, deducting previous suction pressure PMb.Suction pressure PMa is stored in a value in the up-to-date suction pressure storage area of RAM 33 in step 502, and suction pressure PMb is that in front acceleration is determined to use the value of storing afterwards in the determining of time point in the previous suction pressure storage area of RAM 33.In step 505, determine that the suction pressure that calculates in step 504 changes Δ PM and whether limits P greater than being provided for the positive side door that quickens to determine then.If the definite result in step 505 is YES, promptly suction pressure changes Δ PM and changes significantly and surpass positive side door limit P towards positive side, then handles and carry out step 506, and carry out the correction factor calculation program corresponding to the acceleration mode of motor 1.In this remodeling, suction pressure changes the suction pressure change Δ PMN of Δ PM corresponding to Fig. 4.
On the other hand, if are NO in definite result of step 505, that is, suction pressure changes Δ PM less than positive side door limit P, and then processing execution step 507, and definite suction pressure changes Δ PM whether less than being that the minus side thresholding Q that slows down and provide is provided.If the definite result in step 507 is YES, that is, suction pressure changes Δ PM and changes significantly above minus side thresholding Q towards minus side, processing execution step 508 then, and carry out correction factor calculation program shown in Figure 5 corresponding to the deceleration regime of motor 1.Should be noted that suction pressure in the present embodiment changes the suction pressure change Δ PMN of Δ PM corresponding to Fig. 5.
On the other hand, if the definite result in step 507 is NO, promptly, suction pressure changes Δ PM and corrects than minus side thresholding Q, in other words, if suction pressure changes between positive side door limit P of Δ PM and the minus side thresholding Q and changes, processing execution step 509 then, and carry out correction factor calculation program shown in Figure 6 corresponding to the lower state of motor 1.In step 506, after 508 or 509, handle proceeding to step 510, the suction pressure PMa that stores at the up-to-date suction pressure storage area of RAM 33 is stored in the previous suction pressure PMb of conduct in the previous suction pressure storage area, thereby finishes this program.After this program of execution, with the mode correction fuel injection amount identical with first embodiment.
According to described second embodiment, in a burning cycle of motor 1, the suction pressure PM in gas-entered passageway 2 corresponding to suction pressure PM that synchronous each interruptions of different crank angles detects in the middle of detection time point crank angle detected.The acceleration state of motor 1 or lower state are determined according to previous suction pressure PMb that detects at identical crank angle time point and the change amount Δ PM between the current suction pressure PMa.Thereby some detection time that detects suction pressure in a burning cycle of motor 1 is identical, and this can determine the running state of motor 1 apace.
(the 3rd embodiment)
In the 3rd embodiment, fuel injects correction factor and is repeatedly being calculated by CPU 31 with each the synchronous interruption of corner signal that is produced by crank angle detector 22.As shown in Figure 8, in step 601, read suction pressure PM.In step 602, the suction pressure PM that reads in step 601 is stored in the up-to-date suction pressure storage area of RAM 33, then as current suction pressure PMX.In step 603, determine whether it is N-signal interruption time point then.Described N-signal interruption time point refers to the time point that the N-signal that is produced by crank angle detector 22 at the predetermined crank corner causes interruption.If the definite result in step 603 is NO, that is, not N-signal interruption time point, this EOP end of program and do not carry out any step then.
On the other hand, if are YES, that is, be N-signal interruption time point in definite result of step 603, processing execution step 604 then makes the N-number that adds the order of 1 expression N-signal by means of the N-number (preceding value) to storage be updated to new N-number.In step 605, determine the several R whether the N-number equals to be scheduled to then.If the definite result in step 605 is YES, that is, several R that the N number equals to be scheduled to then think the phase place (phase) of motor 1 corresponding to a burning cycle, and make the N number turn back to initial value 0.If the definite result in step 605 is NO, that is, the N-number is not equal to predetermined several R, then handles skips steps 606.
In step 607, be stored in the storage area of RAM 33 at the suction pressure PMX of step 602 storage, then as the time point that upgrades the N number, i.e. the suction pressure PMN of the time point of the predetermined crank corner in a burning cycle of motor 1.In step 608, determine whether that the N number equals to determine corresponding to acceleration the predetermined value S of time point then.Described acceleration determines that time point refers to a plurality of different crank angle predetermined in a burning cycle of motor 1.If the definite result in step 608 is NO, promptly the N-number is not equal to schedule number S, then this EOP end of program and do not carry out any step.
On the other hand, if are YES at definite state of step 608, that is, the N-number equals schedule number S, and processing execution step 609 is then calculated suction pressure and changed Δ PMS by means of deduct previous suction pressure PMSO from current suction pressure PMS.Then in step 610, determine that the suction pressure that calculates in step 609 changes Δ PMS whether greater than the positive side door limit T for quickening to determine to provide.If determining the result is YES, that is, suction pressure changes Δ PMS and has changed towards positive side significantly and surpass positive side door limit T, processing execution step 611 then, and carry out correction factor calculation program shown in Figure 4 corresponding to the acceleration mode of motor 1.Should be noted that the suction pressure in this remodeling changes the suction pressure change Δ PMN of Δ PMS corresponding to Fig. 4.
On the other hand, if are NO in definite result of step 610, that is, suction pressure changes Δ PMS less than positive side door limit T, and then processing execution step 612, and definite suction pressure changes Δ PMS whether less than being that the minus side thresholding U that slows down and provide is provided.If the definite result in step 612 is YES, that is, suction pressure changes Δ PMS and changes significantly above minus side thresholding U towards negative sense, processing execution step 613, and execution is corresponding to the correction factor calculation program as shown in Figure 5 of the deceleration regime of motor 1.Should be noted that the suction pressure in this remodeling changes the suction pressure change Δ PMN of Δ PMS corresponding to Fig. 5.
On the other hand, if the definite result in step 612 is NO, be that suction pressure change Δ PMS corrects than minus side thresholding U, in other words, if suction pressure changes Δ PMS and changes between positive side door limit T and minus side thresholding U, processing execution step 614 then, and carry out correction factor calculation program shown in Figure 6 corresponding to the lower state of motor 1.In step 611, after 613 or 614, processing execution step 615, and current suction pressure PMS is stored in the suction pressure storage area of RAM 33 as previous suction pressure PMSO, thereby finish this program.
After this program is performed, the basic fuelcarrying charge utilization of calculating in a known manner according to the engine speed NE and the suction pressure PM of motor 1 in the main program (not shown) is injected correction factor corresponding to each fuel oil of the acceleration state of motor or lower state and is corrected, thereby regulates the injection amount by the injection syringe 5 actual fuel that inject.
Thereby the acceleration state of motor 1 or lower state are determined according to previous suction pressure PMSO that detects at identical bent axle time point and the change amount Δ PMS between the current suction pressure PMS.Thereby, because it is identical to detect some detection time of suction pressure in a burning cycle of motor 1, so the running state of motor 1 can be determined apace.
Claims (4)
1. a running state that is used for internal-combustion engine (1) is determined device (30), comprising:
Suction pressure detection device (21,30) is used for the suction pressure that a plurality of predetermined crank corners in a burning cycle of internal-combustion engine (1) detect gas-entered passageways (2); And
Running state is determined device (30), be used for acceleration state and the steady state of determining internal-combustion engine from the previous suction pressure that detects at the identical crank angle of internal-combustion engine (1) by described suction pressure detection device (21,30) and the change amount between the current suction pressure.
2. a running state that is used for internal-combustion engine (1) is determined device (30), comprising:
Suction pressure detection device (21,30) is used for the suction pressure that a plurality of predetermined crank corners in a burning cycle of internal-combustion engine (1) detect gas-entered passageways (2); And
Running state is determined device (30), be used for acceleration state and the steady state of determining internal-combustion engine from the previous suction pressure that detects at the substantially the same crank angle of internal-combustion engine (1) by described suction pressure detection device (21,30) and the change amount between the current suction pressure.
3. the running state that is used for internal-combustion engine as claimed in claim 1 or 2 is determined device (30), and wherein said predetermined crank corner is set to several angle outside suction stroke.
4. determine device (30) as any one described running state that is used for internal-combustion engine of claim 1 to 3, wherein said running state determines that device (30) is by the previous suction pressure that detects at each place, angle of a plurality of predetermined crank corners of internal-combustion engine (1) and each the change amount between the current suction pressure and acceleration state and steady state definite internal-combustion engine (1).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37329/2002 | 2002-02-14 | ||
| JP2002037329 | 2002-02-14 | ||
| JP2002354223A JP4239578B2 (en) | 2002-02-14 | 2002-12-05 | Operating state discrimination device for internal combustion engine |
| JP354223/2002 | 2002-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1438411A true CN1438411A (en) | 2003-08-27 |
| CN100507243C CN100507243C (en) | 2009-07-01 |
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ID=27736500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031044344A Expired - Fee Related CN100507243C (en) | 2002-02-14 | 2003-02-14 | Operation-state determining device for IC engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4239578B2 (en) |
| CN (1) | CN100507243C (en) |
| IT (1) | ITMI20030250A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100467846C (en) * | 2003-12-12 | 2009-03-11 | 国产电机株式会社 | Fuel injection control system for engine |
| CN101571091B (en) * | 2008-04-30 | 2012-04-11 | 通用汽车环球科技运作公司 | Time and angle based cylinder pressure data collection |
| CN102472195A (en) * | 2009-07-22 | 2012-05-23 | 株式会社京浜 | Control apparatus for internal combustion engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6211132B1 (en) | 2016-05-02 | 2017-10-11 | 三菱電機株式会社 | ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD |
-
2002
- 2002-12-05 JP JP2002354223A patent/JP4239578B2/en not_active Expired - Fee Related
-
2003
- 2003-02-12 IT ITMI20030250 patent/ITMI20030250A1/en unknown
- 2003-02-14 CN CNB031044344A patent/CN100507243C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100467846C (en) * | 2003-12-12 | 2009-03-11 | 国产电机株式会社 | Fuel injection control system for engine |
| CN101571091B (en) * | 2008-04-30 | 2012-04-11 | 通用汽车环球科技运作公司 | Time and angle based cylinder pressure data collection |
| CN102472195A (en) * | 2009-07-22 | 2012-05-23 | 株式会社京浜 | Control apparatus for internal combustion engine |
| CN102472195B (en) * | 2009-07-22 | 2014-07-30 | 株式会社京浜 | Control apparatus for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4239578B2 (en) | 2009-03-18 |
| CN100507243C (en) | 2009-07-01 |
| ITMI20030250A1 (en) | 2003-08-15 |
| JP2003307150A (en) | 2003-10-31 |
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