CN102306531A - Quantity-determined method for driving internal-combustion engine - Google Patents
Quantity-determined method for driving internal-combustion engine Download PDFInfo
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- CN102306531A CN102306531A CN2011101285461A CN201110128546A CN102306531A CN 102306531 A CN102306531 A CN 102306531A CN 2011101285461 A CN2011101285461 A CN 2011101285461A CN 201110128546 A CN201110128546 A CN 201110128546A CN 102306531 A CN102306531 A CN 102306531A
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- magnet valve
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- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
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- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
- F02D41/2467—Characteristics of actuators for injectors
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- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
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- 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
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0618—Actual fuel injection timing or delay, e.g. determined from fuel pressure drop
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to a quantity-determined method for driving an internal-combustion engine, and provides a method for driving an internal-combustion engine (10), wherein a quantity used for characterizing the switching characteristic of one magnetic valve among a plurality of magnetic valves (14a-d) of the same kind is determined, a first magnetic valve (14b) (a working magnetic valve) is excited for switching on, a second magnetic valve (14d) (a reference magnetic valve) is excited almost simultaneously for switching off, and a difference (24) between a signal on the coil (16b) of the working magnetic valve (14b) and a signal on the coil (16d) of the reference magnetic valve (14d) is formed.
Description
Technical field
The present invention relates to a kind of according to the method as described in the preamble of claim 1 and according to the described computer program of Patent right requirement arranged side by side and control and/or conditioning equipment.
Background technology
The known method of measurement that is used for confirming the switch motion time of magnet valve from the market, the wherein relatively voltage signal and the pre-determined reference curve of the coil of magnet valve.This reference curve has been adopted to the working point of confirming of magnet valve in advance and has been stored in the memory of control and/or conditioning equipment.When operation,, confirm the switch motion time of this magnet valve through the current voltage signal on the coil that detects comparable magnet valve.This detection is carried out with quantification manner usually in time.For the circulation of each switch that will study, it is poor in control and/or conditioning equipment, to be formed by the current voltage curve of this magnet valve and reference curve now.The voltage difference basis that obtains is like this checked with the characteristic that is mutually related breaking time.
Summary of the invention
The present invention based on problem through solving according to the method for claim 1 and according to the computer program of claim arranged side by side and control and/or conditioning equipment.Favourable expansion scheme provides in the dependent claims.In addition, for finding in the important characteristic of the present invention description and the accompanying drawing below, wherein these characteristics are to occur separately or exist for the present invention all extremely importantly with different combinations, and need not spell out once more this.
The invention has the advantages that, can be with the definite amount that characterizes the switching characteristic of a magnet valve of simple mode in a plurality of similar magnet valves, wherein said definite computational efficiency that especially less requires.
From following consideration: promptly when relative reference comes the signal of telecommunication of comparison magnet valve, can confirm the switching characteristic of magnet valve especially exactly.Consider that in addition frequent not every magnet valve (for example injection valve) is connected in internal combustion engine in same circulation.According to the present invention, thus through in the circulation of confirming relatively in this circulation inactive magnet valve (with reference to magnet valve) relatively the magnet valve (work magnet valve) of activity form reference.Form for this reason and be present in work magnet valve and poor with reference to the signal on the coil of magnet valve.In order to obtain available result; Be energized (ansteuern) with electric mode with reference to magnet valve equally at this, yet only be energized in short-term, make with reference to magnet valve access failure still just; And armature not motion as yet thus, and (in an injection valve) do not carry out the injection of fuel.
When magnet valve (as mentioning) was the magnetic injection valve of fuel system of internal combustion engine, the present invention had a mind to the free burial ground for the destitute especially and is employed.The accurate effect of injection valve is for fuel saving and low (emissionsarm) operation particular importance of discharging of internal combustion engine.According to the method for the invention since its simplicity and robustness (Robustheit) though allow on the one hand when operation relative frequently and in polytype internal combustion engine, also can confirm the current switching characteristic of injection valve and mate pumping signal like this.In addition, because less cost, so can save cost.
This method considers that particularly signal is voltage and/or electric current.Voltage and current can be used as the signal of telecommunication and on magnet valve, is accepted (abnehmen) with simple mode and be forwarded to control and/or conditioning equipment, to analyze.
When the amount that will confirm is the switch motion of work magnet valve during the time, convincing especially according to the method for the invention.The switching process of magnet valve often is mapped at the voltage on the coil significantly or is flow through on the time-varying process of electric current of coil, and therefore can be easily to be detected.
Especially regulation according to the method for the invention: if work magnet valve and/or opened circuit with reference to the driving voltage or the exciting current of the coil of magnet valve is confirmed the switch motion time so.Under this state of magnet valve, take place a plurality of and process faster, these processes are easy to detect in time.No longer exist because drive the voltage of magnet valve or the electric current that drives, thus on coil measurable voltage or measurable electric current only also with existing dump energy and relevant with the motion by the induction mapping of armature or valve element.Thus, this stage is suitable for confirming switch motion time and the especially breaking time of magnet valve particularly well.
When the coil of work magnet valve and/or with reference to the coil of magnet valve by rapid arc extinction (Schnellloeschung) when opening circuit, this method is worked better.By this way, the dump energy that in coil, exists especially promptly reduces, and makes the closing motion of armature or valve element to be mapped to consumingly on the signal on the coil relatively.
Helpfully especially be work magnet valve and carry out simultaneously basically with reference to the beginning of the rapid arc extinction of magnet valve.Can be based upon the work magnet valve thus and, improve the accuracy of this method thus with reference to the unified time benchmark (Zeitbezug) between the closing course of magnet valve.
The improvement project of this method regulation, the coil through the analytical work magnet valve and with reference to the local extremum of the function of time of the voltage difference of the coil of magnet valve and/or difference between current is analyzed this voltage difference and/or difference between current.Realize thus, other reference quantity needn't be provided for the closing time of the breaking time of analyzing magnet valve or injection valve.
Alternatively perhaps as replenishing ground; When through about the coil of work magnet valve with reference to the surpassing or be no more than when analyzing this voltage difference and/or difference between current of the function of time detection threshold of the voltage difference of the coil of magnet valve and/or difference between current, can study the function of time of voltage difference simply.Can be alternatively or by threshold value as the relatively-stationary reference quantity comparison function of time additionally, make it possible to form objective yardstick, so that definite switch motion time with the mode of relatively simply and thus saving resource.
Description of drawings
Below with reference to description of drawings exemplary form of implementation of the present invention.In the accompanying drawings:
Fig. 1 illustrates the rough schematic view of the internal combustion engine with the operational amplifier that is used to form the voltage difference between two coils of injection valve; And
Fig. 2 is illustrated in the time diagram of electric current, voltage and voltage difference between two coils of injection valve.
For the element and the amount of the function equivalent in institute's drawings attached, even in different forms of implementation, also use identical Reference numeral.
Embodiment
Fig. 1 illustrates the sketch map that the switch motion time of magnet valve is confirmed in a lot of being used for of being simplified of internal combustion engine 10.Under this situation, internal combustion engine 10 comprises four cylinder 12a to 12d.Each cylinder among these four cylinder 12a to 12d is all relevant with an injection valve 14a to 14d.Each injection valve 14a to 14d has the magnet exciting coil 16a to 16d of the same unshowned electromagnetically-operated equipment that is used for valve element not shown further.Coil 16a to 16d is encouraged by control and/or conditioning equipment 18.This draws through the circuit 20a to 20d in the picture of Fig. 1.On circuit 20b and 20d, be connected with the input of operational amplifier 22.The output signal of operational amplifier 22 is transferred as the voltage difference 24 of control and/or conditioning equipment 18.Computer program 19 is relevant with control and/or conditioning equipment 18, and the method further described at Fig. 2 below being used for implementing of this computer program 19.
Following situation is shown to the examples shown property of Fig. 1: wherein give cylinder 12b fueling through injection valve 14b.While supposition injection valve 14d in Fig. 1 is current not to be movable.Thereby under this situation, injection valve 14d is used as with reference to magnet valve 14d.That is to say, current by control and/or conditioning equipment 18 apply voltage to circuit 20b, make coil 16b be powered and be used for normal injection.In shown circulation, injection valve 14d is roughly handled through the potential pulse on the circuit 20d by coil 16d simultaneously, but this and contrast much shorter under the situation of injection valve 14b.The duration of the power supply of injection valve 14d just is selected to make as yet through injection valve 14d burner oil, that is (unshowned) armature of electromagnetically-operated equipment and with the just motion as yet of valve element of this armature coupling.As seen in fig. 1, the potential difference on operational amplifier 22 detection line 20b and the 20d.
The diagram that it should be understood that Fig. 1 is exemplary, and only describes the confirming of switch motion time of magnet valve 14b.Not shown remaining operational amplifier 22 that is used for confirming the switch motion time of remaining injection valve 14a, 14c and 14d according to identical method.In addition, in practical application, meaningfully, carry out misconnection (Verschaltung) with the mode shown in the picture that is different from Fig. 1.For example; Can be more preferably from the reason of Electro Magnetic Compatibility, the current potential on coil 16b and the 16d respectively through the circuit of a shielding accepted, in case of necessity by independent amplification and and then just be transferred to substracting unit (Differenzbildung) by operational amplifier 22.
Fig. 2 illustrates the time diagram of the voltage and current of coil 16b and 16d.Express time t on the abscissa of coordinate system shown in figure 2.The voltage range of expression coil voltage on the ordinate on the left side in the drawings of this coordinate system.The coil current that expression is associated on the ordinate on the right in the figure of Fig. 2.
From shown in optional zero point of time scale, at moment t1, the coil 16b of movable injection valve 14b (work magnet valve) is the driving voltage 30 of U1 by the value of being equipped with.At this, in coil 16b, obtain exciting current 36.At moment t2, be breaking at the driving voltage 30 on the coil 16b of work magnet valve 14b.Curved section 32 shows voltage change process subsequently.
At roughly the same moment t2, the coil 16d of injection valve 14d (with reference to magnet valve) is equipped with the driving voltage 34 that is similarly U1.At this, in coil 16d, obtain exciting current 37.At moment t3, be breaking at again with reference to the driving voltage 34 on the coil 16d of magnet valve 14d.
Since moment t2, exciting current 36 is reduced to holding current 38 continuously, and this holding current 38 is roughly the same at moment t3 for two coil 16b and 16d, and the voltage analysis that is directed against subsequently thus obtains suitable output state.
At moment t3, roughly carry out rapid arc extinction simultaneously for two coil 16b and 16d.In the back to back time period, the voltage on coil 16b and the 16d is temporarily roughly taked the value into-U2.About moment t4, the exciting current 36 and 37 of coil 16b and 16d is reduced to zero approx gradually, and rapid arc extinction finishes basically.
After moment t3, the change procedure of the voltage 40 on the coil 16b of work magnet valve 14b and have special significance with reference to the change procedure of the voltage 42 on the coil 16d of magnet valve 14d.Form voltage difference 24 through deduct voltage 42 from voltage 40, this voltage difference 24 is estimated (bewerten) for being roughly 4 the factor for explaining better in Fig. 2.
Can see that voltage difference 24 roughly has local maximum (arrow 46) at time t5, and roughly has local minimum (arrow 48) at time t6.Under this situation, local minimum 48 is corresponding to the closing moment of work magnet valve 14b.Can provide the breaking time of work magnet valve 14b as the difference between t6 and the t3 accordingly.
As predeterminedly additionally being-threshold value 50 of U3, can judge that by this threshold value 50 voltage difference 24 is no more than or surpasses, and can set up the time reference of the closing moment of work magnet valve 14b thus equally.
The local minimum of voltage difference 24 is given prominence to, and thereby is suitable for confirming closing moment of injection valve 14b well.Particularly, voltage difference 24 is bigger at the moment of local minimum t6, and therefore insensitive for interference effect, makes this method sane accordingly.
According to the specific structure mode of injection valve 14a to 14d, voltage and/or electric current can have the change procedure different with Fig. 2.Yet, in this case, also can find the system features of voltage difference 24 by the evaluation of passing threshold and/or by the analysis of local extremum, these system features are similar to be suitable for confirming the switch motion time well and especially to confirm breaking time.
Claims (11)
1. be used to drive the method for internal combustion engine (10); Wherein confirm to characterize the amount of the switching characteristic of a magnet valve in a plurality of similar magnet valves (14a-d); It is characterized in that; Encourage first magnet valve (14b) (work magnet valve) to make said first magnet valve (14b) (work magnet valve) connect; Roughly encourage second magnet valve (14d) (with reference to magnet valve) to make said second magnet valve (14d) (with reference to magnet valve) disconnect simultaneously, and form the signal on the coil (16b) be present in work magnet valve (14b) and be present in reference to poor (24) between the signal on the coil (16d) of magnet valve (14d).
2. method according to claim 1 is characterized in that, magnet valve (14a-d) is the magnetic injection valve of the fuel system of internal combustion engine (10).
3. according to one of aforesaid right requirement described method, it is characterized in that signal is voltage (40,42) and/or electric current.
4. require described method according at least one aforesaid right, it is characterized in that, the amount that confirm is the switch motion time of work magnet valve (14b).
5. method according to claim 4 is characterized in that, if work magnet valve (14b) and/or opened circuit with reference to the driving voltage (30,34) or the exciting current (36,37) of the coil of magnet valve (14d) is confirmed the switch motion time so.
6. according to claim 4 or 5 described methods, it is characterized in that the coil (16b) of work magnet valve (14b) and/or opened circuit by rapid arc extinction with reference to the coil (16d) of magnet valve (14d).
7. method according to claim 6 is characterized in that, work magnet valve (14b) and carry out simultaneously basically with reference to the beginning of the rapid arc extinction of magnet valve (14d).
8. require described method according at least one aforesaid right, it is characterized in that, the coil (16b) through analytical work magnet valve (14b) and with reference to the local extremum (46 of the function of time of the voltage difference (24) of the coil (16d) of magnet valve (14d) and/or difference between current; 48), analyze said voltage difference (24) and/or difference between current.
9. require described method according at least one aforesaid right; It is characterized in that; Through about the coil (16b) of work magnet valve (14b) with reference to the surpassing or be no more than of the function of time detection threshold (50) of the voltage difference (24) of the coil (16d) of magnet valve (14d) and/or difference between current, analyze said voltage difference (24) and/or difference between current.
10. a computer program (19) is characterized in that, said computer program (19) is suitable for implementing according to the described method of at least one aforesaid right requirement.
11. control and/or conditioning equipment (18) for one kind, it is characterized in that, upward can move computer program according to claim 10 (19) in said control and/or conditioning equipment (18).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010027806.8A DE102010027806B4 (en) | 2010-04-15 | 2010-04-15 | Method for operating an internal combustion engine, in which a variable is determined |
| DE102010027806.8 | 2010-04-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102306531A true CN102306531A (en) | 2012-01-04 |
| CN102306531B CN102306531B (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110128546.1A Active CN102306531B (en) | 2010-04-15 | 2011-04-14 | The method for driving internal combustion engine of determined amounts |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102306531B (en) |
| DE (1) | DE102010027806B4 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089834A (en) * | 2014-05-12 | 2015-11-25 | 罗伯特·博世有限公司 | Method used for adjusting turn-on characteristic of injection valves |
| CN105143648A (en) * | 2013-04-29 | 2015-12-09 | 大陆汽车有限公司 | Method and device for determining a reference current curve for a fuel injector for determining the point in time of a predetermined opening state of the fuel injector |
| CN105378252A (en) * | 2013-07-24 | 2016-03-02 | 大陆汽车有限公司 | Determination of the point in time of a predetermined open state of a fuel injector |
| CN105840330A (en) * | 2015-01-29 | 2016-08-10 | 罗伯特·博世有限公司 | Method for acquiring characteristic point in time of injection process of fuel injector |
| CN107532535A (en) * | 2015-04-27 | 2018-01-02 | 株式会社电装 | Control device |
| CN107849997A (en) * | 2015-04-24 | 2018-03-27 | 株式会社电装 | The fuel injection control system of internal combustion engine |
| CN108138684A (en) * | 2015-10-12 | 2018-06-08 | 大陆汽车有限公司 | The predetermined opening state of fuel injector of the detection with electromagnetic driver |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016205268B3 (en) * | 2016-03-31 | 2017-06-08 | Continental Automotive Gmbh | Determining injection parameter values for fuel injectors |
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| US4793313A (en) * | 1986-04-10 | 1988-12-27 | Robert Bosch Gmbh | Fuel injection apparatus for internal combustion engines |
| JP2005504912A (en) * | 2001-09-27 | 2005-02-17 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method for operating an internal combustion engine, computer program, open loop and / or closed loop control device, and internal combustion engine |
| US20060137633A1 (en) * | 2002-11-02 | 2006-06-29 | Hubert Schweiggart | Arrays for controllable power supply of electrovalves of an electrohydraulic valve control |
| CN1920281A (en) * | 2005-08-23 | 2007-02-28 | 罗伯特.博世有限公司 | Method of recognizing external adjustment steps |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4445651A1 (en) | 1994-12-21 | 1996-06-27 | Bosch Gmbh Robert | Process for the control of technical processes |
| DE102009044969A1 (en) | 2009-09-24 | 2011-03-31 | Robert Bosch Gmbh | Method for determining switch-off time of solenoid valve of rail-diesel engine, involves providing reference characteristic as simulation characteristic by solenoid valve simulation circuit that imitates reference measurement characteristic |
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2010
- 2010-04-15 DE DE102010027806.8A patent/DE102010027806B4/en active Active
-
2011
- 2011-04-14 CN CN201110128546.1A patent/CN102306531B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793313A (en) * | 1986-04-10 | 1988-12-27 | Robert Bosch Gmbh | Fuel injection apparatus for internal combustion engines |
| JP2005504912A (en) * | 2001-09-27 | 2005-02-17 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method for operating an internal combustion engine, computer program, open loop and / or closed loop control device, and internal combustion engine |
| US20060137633A1 (en) * | 2002-11-02 | 2006-06-29 | Hubert Schweiggart | Arrays for controllable power supply of electrovalves of an electrohydraulic valve control |
| CN1920281A (en) * | 2005-08-23 | 2007-02-28 | 罗伯特.博世有限公司 | Method of recognizing external adjustment steps |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105143648A (en) * | 2013-04-29 | 2015-12-09 | 大陆汽车有限公司 | Method and device for determining a reference current curve for a fuel injector for determining the point in time of a predetermined opening state of the fuel injector |
| CN105378252A (en) * | 2013-07-24 | 2016-03-02 | 大陆汽车有限公司 | Determination of the point in time of a predetermined open state of a fuel injector |
| CN105378252B (en) * | 2013-07-24 | 2019-04-09 | 大陆汽车有限公司 | Seek the time point of the predetermined opening state of fuel injector |
| CN105089834A (en) * | 2014-05-12 | 2015-11-25 | 罗伯特·博世有限公司 | Method used for adjusting turn-on characteristic of injection valves |
| CN105840330A (en) * | 2015-01-29 | 2016-08-10 | 罗伯特·博世有限公司 | Method for acquiring characteristic point in time of injection process of fuel injector |
| CN105840330B (en) * | 2015-01-29 | 2021-11-30 | 罗伯特·博世有限公司 | Method for determining a characteristic point in time of an injection process of a fuel injector |
| CN107849997A (en) * | 2015-04-24 | 2018-03-27 | 株式会社电装 | The fuel injection control system of internal combustion engine |
| CN107849997B (en) * | 2015-04-24 | 2021-08-13 | 株式会社电装 | Fuel injection control device for internal combustion engine |
| CN107532535A (en) * | 2015-04-27 | 2018-01-02 | 株式会社电装 | Control device |
| CN107532535B (en) * | 2015-04-27 | 2020-12-08 | 株式会社电装 | Control device |
| CN108138684A (en) * | 2015-10-12 | 2018-06-08 | 大陆汽车有限公司 | The predetermined opening state of fuel injector of the detection with electromagnetic driver |
| CN108138684B (en) * | 2015-10-12 | 2024-04-26 | 纬湃科技有限责任公司 | Detecting a predetermined open state of a fuel injector having an electromagnetic drive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102306531B (en) | 2015-11-25 |
| DE102010027806A1 (en) | 2011-10-20 |
| DE102010027806B4 (en) | 2024-01-18 |
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