CN1786445A - Method for identifying stage of four stroke ic engine - Google Patents
Method for identifying stage of four stroke ic engine Download PDFInfo
- Publication number
- CN1786445A CN1786445A CN 200510022862 CN200510022862A CN1786445A CN 1786445 A CN1786445 A CN 1786445A CN 200510022862 CN200510022862 CN 200510022862 CN 200510022862 A CN200510022862 A CN 200510022862A CN 1786445 A CN1786445 A CN 1786445A
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- rotating speed
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- compression stage
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000007858 starting material Substances 0.000 claims abstract description 28
- 230000006835 compression Effects 0.000 claims abstract description 26
- 238000007906 compression Methods 0.000 claims abstract description 26
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 230000001149 cognitive effect Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
- F02D2041/0092—Synchronisation of the cylinders at engine start
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/503—Battery correction, i.e. corrections as a function of the state of the battery, its output or its type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention provides a phase recognition method for a four-stroke internal combustion engine (1), which is characterized in that: the internal combustion engine (1) comprises an electric starter with a starter battery (25) for power supply and a sensor wheel (7) with teeth (13) and clearances (14); the sensor wheel extends along a sensor (9); different electrical signals are output from the sensor (9) according to positions corresponding to the teeth (13) or clearances (14); one of fixed crank angles corresponds to a sign of the sensor wheel (9). Compared with the prior art, the application possibility is widened and more reliable phase recognition is guaranteed. By measuring the timely varying curves of the battery voltage (UB), a compression phase (VD) is recognized when a negative voltage gradient is identified.
Description
Technical field
The present invention relates to a kind of method that is used for stage of four stroke ic engine identification, this internal-combustion engine has a starting motor, it is by a starter storage battery service voltage, and have a sensor wheel with the gear teeth and backlash, sensor wheel extends along a sensor, sensor wherein is corresponding definite crank angle of a sign of sensor wheel according to the different electrical signal of position output with respect to gear teeth or a backlash.
Background technique
Electronic injector has more and more replaced the Carburetor in small-sized and the micro internal combustion engine simultaneously.This be since worldwide exhaust emission regulations become more and more stricter, and it has high energy-saving potential with respect to using Carburetor to form mixed gas aspect fuel consumption.Small-sized and micro internal combustion engine is divided into open-road applications and non-open-road applications.For example motorcycle and motor pedicab belong to open-road applications, and for example so-called golden landform vehicle (ATEV) or four-wheel motor cycle, marine use such as outboard motor, vehicle capable of travelling on water (so-called jet sledge), snowmobile, seat formula mowing machine, generator unit or so-called portable equipment for example chain saw, blower and similarly device belong to non-open-road applications.Nowadays the four stroke engine that in most of the cases has a cylinder is used for this class and uses.In order to spray in the correct moment and to light a fire, also be that camshaft whenever revolves and turns around or bent axle whenever revolves to take two turns and once sprays and light a fire, must know, piston is the top dead center that is in exhaust phase and takes a breath thus, the top dead center that still is in compression stage and burns thus (OT).If camshaft is with respect to the location aware of bent axle, the stage also just can be discerned so.The determining of piston top dead center position use usually one the increment type sensor wheel that has the space on the bent axle and for example an inductive transducer or the fan-shaped sensor wheel that has a Hall transducer in engine hood carry out.Determining usually of stage by light barrier on the sensor wheel on the camshaft and inductive transducer, the camshaft and Hall transducer, to the analysis of single cylinder or three cylinder engine suction press or the analysis of single cylinder or three cylinder engine rotating speed is carried out.In not having the engine controlling unit of stage identification, the operation of internal-combustion engine can only be in spray simultaneously and pattern that dual ignition is carried out simultaneously under.This may produce a lot of shortcomings, for example:
-to control apparatus and the higher heat load of spark coil;
-the load higher to automobile circuit, this is particularly to very crucial on the mini engine;
-the wearing and tearing bigger to spark plug;
-high pressure number of connection is bigger;
The great risk of-suction tude tempering;
The higher switch period of-igniting final stage;
-in multiple cylinder engine, can not select single cylinder.
Sensor wheel or light barrier that use has on the camshaft of attached sensors determine that the stage seldom is applicable to simple system for reasons in structure and cost reason.The method that this employing suction press is analyzed is cognitive phase reliably after several commentaries on classics of engine revolution only, and this also can only be just feasible when throttle opening is little.If throttle opening is excessive, in suction stroke, in suction tude, can not discern enough significantly variation in pressure, thus just can not cognitive phase.
Up to the present the Motronic control maps control gear on mini engine is drawn from the passenger car applications system.When using small-sized and miniature single-cylinder engine, because the restriction on structure and the cost does not have the operational phase sensor.Carry out stage identification by suction press or rotating speed here.Undertaken by suction press when identification in stage, can be implemented in very little load, be minimal to that the analysis by suction press comes cognitive phase in the scope of about 50% load.When intake valve one is opened, the piston inspiration cylinder of the amount of fresh air in suction tude by moving downward.Relevant with the volume ratio of cylinder and suction tude, this can cause, and tangible pressure falls in the suction tude.The space that is identified on the contact sensor wheel can determine that thus piston is in igniting top dead center or ventilation top dead center.Yet under when starting closure situation about opening fully, can not determine the stage, because the pressure surge at this moment in the suction tude is too little.Can determine the stage equally by analyzing the rotating speed gradient of piston before each top dead center position.The compression work that accumulates in compression stroke can cause a measurable negative rotating speed gradient, and this compression stroke finishes when arriving the igniting top dead center.The afterbody that is used to gather the measurement window of rotating speed gradient is located immediately at the gap of sensor wheel with reasonable manner.Measurement window also can prolong arbitrarily as required, and this is necessary under the situation of the cylinder of two asymmetric igniting for example.Backlash is usually located between 60 to 80 ° on budc bent axle.Rotating speed gradient ratio to the ventilation top dead center is little to the rotating speed gradient of igniting top dead center.Could realize when reliable report only reaches certain rotating speed threshold value to the rotating speed gradient that because during the rising rotating speed, the rotating speed gradient is not enough to guarantee reliable identification.
According to method well known in the prior art, be that it has the restriction of using scope aspect respectively promptly by suction press or by the shortcoming that the rotating speed gradient is carried out stage identification.For example carry out the stage and just can not realize when being identified in closure and opening fully, and only when reaching certain rotating speed, could realize when carrying out stage identification by the rotating speed gradient by suction press.
Summary of the invention
The objective of the invention is to propose a kind of method that is used for stage identification, it has expanded the use possibility with respect to prior art, and can guarantee reliable stage identification at this.
Above-mentioned prior art problems solves by a kind of stage identifying method of quartastroke engine, this internal-combustion engine has an actuating motor, it is powered by a starter storage battery, internal-combustion engine also has a sensor wheel, it has the gear teeth and backlash, sensor extends along a sensor, sensor can be according to the different electrical signal of position output of the gear teeth or backlash, wherein sensor wheel sign is assigned a definite crank angle, wherein measure the time changing curve of battery tension, and when sign occurring, can identify compression stage at negative voltage gradient place.Can be understood as near the angle range this sign sign occurring, this for example also can be positioned at the space before or afterwards, for example: the space+x number of teeth.
The gear teeth and backlash also be can be understood as for example magnetic sign or optical markers or other analog here, and corresponding for example inductive transducer of they and or optical sensor acting in conjunction can produce an electrical signal that changes with crank angle.Here can be understood as a sign different with the gear teeth and backlash for the sensor wheel sign, it for example can be a wide backlash of common backlash twice.But also can use the sign of any other form here, for example an especially little backlash, bigger gear teeth or other similar structure are as a token of.Usually sign is positioned at the crank angle place near budc, and for example budc is 60 to 80 °.The time changing curve of battery tension has been represented the time history of starter battery tension.Here both can be understood as battery tension along with the variation of time for voltage gradient, also can be understood as the variation of battery tension along with crank angle.By rotating speed, time and crank angle have after all connected, thereby two gradients can derive mutually.Appearance for sign is interpreted as here, and the sign of sensor wheel is through sensor, thereby the crank angle that marks thus obtains by bent axle.If identify sign,, can not know to be in compression stage or exhaust phase though crank angle is known.Now according to the present invention, when sign occurring or occurring before the sign or when measuring a negative battery tension gradient afterwards, identify compression stage.If when at this moment not measuring voltage gradient or measuring a positive voltage gradient, so just identify exhaust phase.
In a kind of scheme, additionally produce the rotating speed gradient that is used for determining compression stage according to the inventive method.Represent a compression stage in this preferably negative rotating speed gradient.In the another kind of scheme of the inventive method, additionally produce the suction press that is used for determining compression stage, wherein preferably a negative pressure gradient is represented a compression stage.In this way, the stage rationalizes by diverse ways, is separate between these diverse ways, and when first kind the stage, identifying method made mistakes by means of still correct cognitive phase (improved usability) of another kind of method.
This method begins after being preferably in and starting the interference of the battery tension that causes by starting motor, because have only the voltage functuation that could consider the starting motor storage battery after this.
Description of drawings
Describe one embodiment of the present of invention below with reference to the accompanying drawings in detail.
Accompanying drawing illustrates:
Fig. 1 illustrates the schematic representation of a single-cylinder engine;
Fig. 2 illustrates the battery tension variation of starter storage battery along with crank angle;
Fig. 3 shows the enlarged view of I among Fig. 2;
Fig. 4 illustrates the flow chart of this method.
Embodiment
Fig. 1 shows the schematic representation of a single-cylinder engine 1, and it has a cylinder 2, and its same piston 3 is closed chamber 4 together.Connecting rod 5 of piston 3 usefulness method in known manner is connected with a bent axle that does not specifically illustrate 6.Bent axle 6 is provided with a sensing dish 7, and it has cutting 8, and it alternately is made of the gear teeth 13 and backlash 14, makes at it and produces an electrical signal during through a sensor 9.The electrical signal of sensor 9 is transported in the electronic control unit 10.Shown in Figure 1 is a four-stroke gasoline engine, and it also comprises at least one intake valve 11 and at least one exhaust valve 12, and they are for example for example controlled by means of rocking arm or analog by a camshaft that does not illustrate here.Spark plug 15 method in known manner is used to light mixed gas, for example spurts near the oil nozzle 16 in the intake duct 17 before the intake valve 11 and is used to form mixed gas.Be provided with a closure 18 in this external intake duct 17, it is connected with a throttle position sensor 19, and this sensor 19 can be sent to an electrical signal on the control apparatus 10 equally.In intake duct 17, be provided with an air inlet pressure sensor 20 in addition, measure the pressure in intake duct 17 and be sent on the control apparatus 10 by it.One can be used for idle by the bypass 21 of control apparatus 10 electric control.Oil nozzle 16 is connected with an Injection Pump 22 by pressure duct 23, and wherein Injection Pump directly is arranged on the fuel tank 24 in this case.A car accumulator 25 is used for powering to the electrical apparatus element of internal-combustion engine, and this car accumulator 25 can be connected with automobile circuit by a main switch 26.Starter motor is not shown in the present embodiment, and it is for example known and can be connected with the bent axle of internal-combustion engine 1 by the Coupler that an own wheel mechanism or can electricity connect according to prior art, and comprises a motor that is used for cranking internal combustion engine.A generator is not shown equally, and generator is used for charging again to car accumulator 25 as adjustable generator.Internal-combustion engine 1 also is furnished with a temperature transducer 27 in addition, and temperature transducer provides an electrical signal that is used to analyze by electronic control unit 10.Exhaust valve 12 is communicated with firing chamber 4 under open mode with an outlet pipe 29, outlet pipe 29 is discharged in the atmosphere after waste gas is handled by eliminating the noise.Outlet pipe 29 is provided with a lambda seeker 28, and the remnant oxygen in this detector measurement waste gas is also measured thus because the air/oxygen that burning produces than (lambda), and is sent on the electronic control unit 10 as electrical signal.
The starting process of the single-cylinder engine that front had once been described basically is described below.In order to start, bent axle drives by means of starter motor and produces certain rotating speed, and this rotating speed can light the inflammable mixture in the firing chamber in a compression stage, and realizes that thus internal-combustion engine turns round by the driving power of self.Moving from tomorrow process according to the voltage change curve of starter storage battery and rotation speed change curve below.At first figure 2 illustrates the voltage change curve of starter storage battery, for example the voltage that between battery positive voltage and negative pole, records.Abscissa is a crank angle in Fig. 2, and wherein crank angle is respectively directly corresponding with the four-stage of the working stroke of a four stroke engine, i.e. charging stage, compression stage, combustion phase and exhaust phase.The y coordinate on the left side is represented battery tension UB, and the y coordinate on the right is represented the rotation speed n of bent axle.Abscissa is by additional three phases A, B, the C of being divided into, though wherein connect by main switch 26 at the stage A electric equipment, Starter is not also started, and is started and rotates at the stage B Starter, in of the power running of stage C internal-combustion engine, that is to say without starter motor to drive by oneself.Started at T0 moment starter motor, this shows by the violent interference with respect to idling voltage U 0 in the curve of battery tension UB.Another stage of starter motor operation as can be seen, along with rotation speed n increases, battery tension UB has fluctuation, wherein be switched to T0 (rotating speed is 0) constantly from starter motor, close to starter motor then, rotating speed constantly rises, and rotating speed connects with a steep gradient and approaches idling speed nL when starter motor cuts out.
That amplifies in Fig. 3 shows the zone that marks with I among Fig. 2.Here working stroke is represented aspirating stroke, is represented compression stroke, represents combustion stroke and represent exhaust stroke with AU with VB with VD with AN.Additional at the crank angle that shows on the abscissa between 0 and 720 °, and marked the space LK on the sensor wheel.Lower dead center or top dead center UT, the OT of piston below crank angle, have been marked.
For starting motor, the moment of torsion that provides is the function of the electric current that flows through basically.Under the situation of motor as starter motor that has a field coil, moment of torsion becomes square relevant with the electric current that is flow through basically.Under the situation of motor as actuating motor that has a permanent magnet, moment of torsion is linear with the electric current that is flow through basically.Under application of use mini engine and situation, use the motor that has permanent magnet usually, and in starting motor, use permanent exciting motor thus at car.Basically can regard as and the proportional relation of electric current that is flow through by the moment of torsion of starter motor output.The terminal voltage of same starter storage battery also with the output current phase relation.Simply, terminal voltage is linear with output current equally, and for example according to formula U=U0-RII, wherein U0 is that idling voltage, RI are that accumulator internal resistance, I are that output current, U are terminal voltages.Therefore the terminal voltage of Starter storage battery has relation with the output torque of Starter to a great extent.
As can be seen from Figure 3, battery tension at first raises in the charging stage, descends with a steep relatively gradient at compression stage VD, reaches a minimum value, and rises again at combustion phase VB and exhaust phase AU.The form of this rising depends on the charged state of storage battery and the load of automobile circuit certainly.Then another circulation then.In the possible stage in corresponding sensor wheel space, promptly compression stage VD and exhaust phase AU are different on the gradient of battery tension.At compression stage is a relatively big negative voltage gradient, is a bigger positive voltage gradient at exhaust phase AU.According to the charged state and the automobile circuit load of storage battery, the voltage gradient here can not have very little or at all yet.Measuring voltage gradient in measurement window M1 and M2 now, measurement window is positioned at before the space LK of sensor wheel in the present embodiment in time.The quotient of Δ U1 and M1 is born in this case, and the quotient of Δ U2 and M2 is positive or less than a default threshold value.As long as the negative slope about the battery tension of crank angle is clearly corresponding with compression stage VD, so positive slope or do not have slope just corresponding to exhaust stroke AU.The space LK of sensor wheel can be distributed to compression stage or exhaust phase thus.This may must be with all other non-constant electric consumer (spark coil, injection valve or the like) close.Otherwise may carry out when search in stage in measurement window may be because the stage identification that the voltage gradient that the electric consumer of non-electric starting device cause leads to errors.
Fig. 4 shows the flow chart of the inventive method.After in step 30, for example starting starter motor, determine at first in step 31 whether starter motor rotates, for example by determining whether the motor rotary speed on the bent axle surpasses the Xiamen limit value of a qualification by a starter push button.In a loops that is called step 32, analyze battery tension then by for example per 10 milliseconds of scannings once.Determine about the voltage gradient of time or in conjunction with the rotating speed of determining about the acquisition of crank angle at this.If in step 33, identify a negative voltage gradient, and in step 34, identify a space on the sensor wheel, so then in step 35, carry out a combustion stroke, and in another step 36, can identify the stage, a negative voltage gradient and space identification compression stage of passing through promptly as implied above here.If in step 33b, identify a positive voltage gradient or do not have to surpass the threshold value (not identifying gradient) of a qualification, and in step 34b, identify a space of sensor wheel, so then in step 35b, carry out aspirating stroke.In step 36b, identify the stage thus.From this constantly, engine controlling unit is in Mode A: sequence-injection and igniting.In next procedure, be called step 37 here, the stage is discerned by other known method as checking by rotating speed or suction press.If obtain identical result in step 38, this stage rationalizes in step 39.Keep current pattern.If difference as a result, shown in step 40, the stage is given up in step 41 so, switches to pattern C then: spray simultaneously and dual ignition.
If engine ignition work is called step 42, internal-combustion engine turns round under Mode B usually and carries out sequence-injection and igniting so.Under this pattern, promptly internal-combustion engine normally moves, shown in step 43, this stage for example since the electricity that does not identify the space or do not identify the gear teeth single on the sensor wheel and control apparatus reset and can not be rationalized/know.Convert pattern C in this case sprays and dual ignition simultaneously.This is in order to guarantee that internal-combustion engine remains under the ignition mode.If in other words igniting and being injected in the cylinder of a mistake is carried out, internal-combustion engine is just flame-out.Injection of in pattern C, carrying out simultaneously and dual ignition, as ignition phase, in step 46 check, motor whether be in steady state and be in rotating speed and the load upper threshold under.If in step 47, come cognitive phase by analyzing suction press or rotating speed.If, can switch to stage B again so: carry out sequence-injection and igniting as passing through suction press or rotating speed success cognitive phase as shown in the step 47.If in step 48, can not pass through suction press or rotating speed cognitive phase, keep stage C so: spray simultaneously and dual ignition, can complete successfully up to step 47, and in step 49, identify the stage again.Internal-combustion engine moves under Mode B then again, carries out sequence-injection and igniting.
Claims (6)
1. be used to discern the method in the stage of quartastroke engine (1), this internal-combustion engine (1) has the starting motor by starter storage battery (25) power supply, and the sensor wheel (7) that has the gear teeth (13) and backlash (14), sensor wheel extends along sensor (9), sensor (9) is according to the different electrical signal of position output with respect to the gear teeth (13) or backlash (14), the sign of the crank angle correspondence sensor wheel of wherein determining (9), it is characterized by: measure the time changing curve of battery tension (UB), and when sign occurring, identifying compression stage (VD) under the situation of negative voltage gradient.
2. by the described method of aforementioned claim, it is characterized by: additionally produce the rotating speed gradient that is used for determining compression stage (VD).
3. by the described method of aforementioned claim, it is characterized by: negative rotating speed gradient is represented compression stage (VD).
4. by each described method of aforementioned claim, it is characterized by: additionally produce the suction press that is used for determining compression stage (VD).
5. by the described method of aforementioned claim, it is characterized by: negative pressure gradient is represented compression stage (VD).
6. by each described method of aforementioned claim, it is characterized by: it begins after by the interference of starting the battery tension (UB) that starter motor causes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004059641.7 | 2004-12-10 | ||
| DE200410059641 DE102004059641A1 (en) | 2004-12-10 | 2004-12-10 | Phase recognition method for four-cycle internal combustion engine involves measuring chronological characteristics of battery voltage and identification of negative potential gradient with selection of compression phase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1786445A true CN1786445A (en) | 2006-06-14 |
| CN100538049C CN100538049C (en) | 2009-09-09 |
Family
ID=36571121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100228625A Expired - Fee Related CN100538049C (en) | 2004-12-10 | 2005-12-12 | The method that is used for stage of four stroke ic engine identification |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100538049C (en) |
| DE (1) | DE102004059641A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472192A (en) * | 2009-07-09 | 2012-05-23 | 丰田自动车株式会社 | Internal combustion engine start control system |
| CN102678362A (en) * | 2012-05-16 | 2012-09-19 | 联合汽车电子有限公司 | System of phase-free sensor for identifying one cylinder compression TDC (Top Dead Center) of three-cylinder engine |
| CN110043376A (en) * | 2018-01-15 | 2019-07-23 | 罗伯特·博世有限公司 | The method of the start mode of internal combustion engine for identification |
| CN110118664A (en) * | 2019-06-17 | 2019-08-13 | 北京信达众联科技有限公司 | Engineering truck based on battery voltage goes into operation status analysis device |
-
2004
- 2004-12-10 DE DE200410059641 patent/DE102004059641A1/en not_active Withdrawn
-
2005
- 2005-12-12 CN CNB2005100228625A patent/CN100538049C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472192A (en) * | 2009-07-09 | 2012-05-23 | 丰田自动车株式会社 | Internal combustion engine start control system |
| CN102472192B (en) * | 2009-07-09 | 2014-07-09 | 丰田自动车株式会社 | Internal combustion engine start control system |
| CN102678362A (en) * | 2012-05-16 | 2012-09-19 | 联合汽车电子有限公司 | System of phase-free sensor for identifying one cylinder compression TDC (Top Dead Center) of three-cylinder engine |
| CN110043376A (en) * | 2018-01-15 | 2019-07-23 | 罗伯特·博世有限公司 | The method of the start mode of internal combustion engine for identification |
| CN110118664A (en) * | 2019-06-17 | 2019-08-13 | 北京信达众联科技有限公司 | Engineering truck based on battery voltage goes into operation status analysis device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004059641A1 (en) | 2006-06-22 |
| CN100538049C (en) | 2009-09-09 |
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Granted publication date: 20090909 Termination date: 20100112 |