DE3616355A1 - METHOD FOR CONTROLLING AN INJECTION VALVE - Google Patents
METHOD FOR CONTROLLING AN INJECTION VALVEInfo
- Publication number
- DE3616355A1 DE3616355A1 DE19863616355 DE3616355A DE3616355A1 DE 3616355 A1 DE3616355 A1 DE 3616355A1 DE 19863616355 DE19863616355 DE 19863616355 DE 3616355 A DE3616355 A DE 3616355A DE 3616355 A1 DE3616355 A1 DE 3616355A1
- Authority
- DE
- Germany
- Prior art keywords
- injection valve
- voltage pulse
- solenoid
- current
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- F02D41/30—Controlling fuel injection
- F02D41/3005—Details not otherwise provided for
-
- 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
-
- 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
- F02D2041/2017—Output circuits, e.g. for controlling currents in command coils using means for creating a boost current or using reference switching
-
- 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
- F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
- F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
-
- 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
- F02D2041/2044—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using pre-magnetisation or post-magnetisation of the coils
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/20—Fuel-injection apparatus with permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
Die Erfindung geht aus von einem Verfahren zur An steuerung eines Einspritzventils für eine Brennkraft maschine, wobei eine Magnetspule des Einspritzven tils mit einem Spannungsimpuls beaufschlagt wird.The invention is based on a method for control of an injection valve for an internal combustion engine machine, a solenoid of the injection valve tils with a voltage pulse.
Bei elektrisch betätigten Einspritzventilen für Brennkraftmaschinen wird zum Öffnen des Ventils ein Spannungsimpuls an die Magnetspule angelegt. Wegen der induktiven Komponente der Impedanz der Magnet spule steigt der Strom nicht sprungartig wie die Spannung, sondern allmählich an. Bei hochohmigen Mag netspulen wird der Strom schließlich durch den Wider stand der Magnetspule begrenzt. Nach dem Abschalten der Spannung schwingt der Strom in Form einer ge dämpften Schwingung aus. Dabei bildet sich eine rema nente Magnetisierung des Magnetkerns des Einspritz ventils in entgegengesetzter Richtung zur Magnetisie rung durch den während der Öffnungszeit fließenden Strom. With electrically operated injectors for Internal combustion engines will open the valve Voltage pulse applied to the solenoid. Because of the inductive component of the impedance of the magnet current does not rise suddenly like that Tension but gradually. With high-resistance mag The current will eventually coils through the cons the solenoid was limited. After switching off the voltage oscillates in the form of a ge dampened vibration. This creates a rema nent magnetization of the magnetic core of the injection valve in the opposite direction to the magnetisie through the flow during opening hours Electricity.
Nach Beginn des folgenden Spannungsimpulses ist da her erst eine Ummagnetisierung des Magnetkerns erfor derlich, was zu einer Verzögerung der Öffnung des Einspritzventils führt. Eine derartige Verzögerung ist jedoch störend - insbesondere, wenn innerhalb eines Regelsystems kurze Einspritzzeiten eingestellt werden.After the beginning of the following voltage pulse there is only need to re-magnetize the magnetic core which leads to a delay in the opening of the Injector leads. Such a delay is annoying - especially when inside of a control system set short injection times will.
Aufgabe der vorliegenden Erfindung ist es, ein Ver fahren zur Ansteuerung des Einspritzventils anzuge ben, bei welchem nach Beginn des zur Öffnung des Ven tils vorgesehenen Spannungsimpulses möglichst ohne Verzögerung die Öffnung des Ventils erfolgt.The object of the present invention is a Ver drive to control the injector ben, in which after the beginning of the opening of Ven tils provided voltage pulse as possible without The opening of the valve is delayed.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß vor dem Spannungsimpuls ein geringerer Strom, als zum Öffnen des Einspritzventils erforderlich ist, durch die Magnetspule fließt.According to the invention, this object is achieved by that a lower current before the voltage pulse, than required to open the injector is flowing through the solenoid.
Durch die erfindungsgemäßen Maßnahmen ist gewährlei stet, daß sich nach Beginn des Spannungsimpulses in möglichst kurzer Zeit ein Magnetfeld aufbaut, wel ches zum Öffnen des Einspritzventils ausreicht.The measures according to the invention guarantee stet that after the start of the voltage pulse in builds up a magnetic field as short as possible, wel ches enough to open the injector.
Eine Weiterbildung der Erfindung besteht darin, daß der Magnetspule vor dem Anlegen des Spannungsimpul ses eine pulsierende Spannung zugeführt wird. Diese Weiterbildung ermöglicht eine Begrenzung des vor dem Öffnungsvorgang fließenden Stroms, ohne daß eine nennenswerte Verlustleistung auftritt.A further development of the invention is that the solenoid before applying the voltage pulse a pulsating voltage is supplied. These Continuing education allows a limitation of the before Opening process of flowing current without a significant power loss occurs.
Die Erfindung läßt zahlreiche Ausführungsformen zu. Eine davon ist schematisch in der Zeichnung an Hand mehrerer Figuren dargestellt und nachfolgend be schrieben. Es zeigt: The invention allows numerous embodiments. One of them is shown schematically in the drawing shown several figures and below be wrote. It shows:
Fig. 1 ein Zeitdiagramm der an der Magnetspule anliegenden Spannung und Fig. 1 is a timing diagram of the voltage applied to the solenoid and
Fig. 2 ein Zeitdiagramm des durch die Magnetspule fließenden Stroms. Fig. 2 is a timing diagram of the current flowing through the solenoid.
Jeweils für einen Einspritzvorgang wird die Magnet spule des Einspritzventils mit einem in Fig. 1 darge stellten Spannungsimpuls 1 beaufschlagt. Durch die induktive Komponente der Magnetspule steigt der Strom I (Fig. 2) allmählich an, bis ein durch die Spannung und den Widerstand gegebener Wert erreicht ist. Nach dem Abschalten der Spannung klingt der Strom in Form einer gedämpften Schwingung ab, wobei durch die schraffiert hervorgehobene Halbwelle eine remanente Magnetisierung in umgekehrter Richtung ver bleibt.In each case for an injection process, the solenoid coil of the injection valve is acted upon by a voltage pulse 1 shown in FIG. 1. The current I ( FIG. 2) increases gradually through the inductive component of the magnetic coil until a value given by the voltage and the resistance is reached. After the voltage is switched off, the current decays in the form of a damped oscillation, a remanent magnetization in the opposite direction remaining by the hatched half-wave.
Bei bekannten Verfahren zur Ansteuerung von Ein spritzventilen beginnt der Strom I nach dem Einschal ten der Spannung bei 0 und nimmt den in Fig. 2 ge strichtelt dargestellten Verlauf. Dabei wird zu nächst die zugeführte Energie für eine Ummagnetisie rung des Magnetkerns verbraucht, so daß eine für das Öffnen des Ventils erforderliche Feldstärke erst spä ter erreicht wird.In known methods for controlling an injection valve, the current I begins after switching on the voltage at 0 and takes the course shown in FIG. 2 with dashed lines. First, the energy supplied for Ummagnetisie tion of the magnetic core is consumed, so that a field strength required for opening the valve is only reached later.
Dem zum Öffnen des Einspritzventils vorgesehenen Spannungsimpuls 1 werden Spannungsimpulse 2, 3, 4 vorausgeschickt, welche den in Fig. 2 als durchgezo gene Linie dargestellten Strom bewirken. Dadurch ist bei Beginn des Spannungsimpulses 1 der Magnetkern bereits ummagnetisiert, so daß der Vorgang des Öff nens wesentlich beschleunigt wird. The voltage pulse 1 provided for opening the injection valve is preceded by voltage pulses 2 , 3 , 4 which cause the current shown in FIG. 2 as a solid line. As a result, the magnetic core is already remagnetized at the beginning of the voltage pulse 1 , so that the process of opening is significantly accelerated.
Das erfindungsgemäße Verfahren kann mit an sich be kannten Schaltungsanordnungen durchgeführt werden. So sind beispielsweise Schaltungsanordnungen zur Begrenzung des Stromes auf einen zum Offenhalten des Einspritzventils genügenden Wert für niederohmige Einspritzventile bekannt. Diese Schaltungsanordnun gen können - entsprechend angesteuert - auch für die Begrenzung des Stromes I vor dem Öffnen des Ventils verwendet werden.The inventive method can be carried out with known circuit arrangements. For example, circuit arrangements for limiting the current to a value sufficient for keeping the injection valve open for low-resistance injection valves are known. These circuit arrangements can be used - appropriately controlled - for limiting the current I before opening the valve.
Claims (2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863616355 DE3616355A1 (en) | 1986-05-15 | 1986-05-15 | METHOD FOR CONTROLLING AN INJECTION VALVE |
EP86116760A EP0245540A3 (en) | 1986-05-15 | 1986-12-02 | Method for actuating an injection valve |
BR8701748A BR8701748A (en) | 1986-05-15 | 1987-04-13 | PROCESS FOR COMMANDING AN INJECTION VALVE |
JP11721187A JPS62276242A (en) | 1986-05-15 | 1987-05-15 | Method of controlling injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863616355 DE3616355A1 (en) | 1986-05-15 | 1986-05-15 | METHOD FOR CONTROLLING AN INJECTION VALVE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3616355A1 true DE3616355A1 (en) | 1987-11-19 |
Family
ID=6300878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863616355 Withdrawn DE3616355A1 (en) | 1986-05-15 | 1986-05-15 | METHOD FOR CONTROLLING AN INJECTION VALVE |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0245540A3 (en) |
JP (1) | JPS62276242A (en) |
BR (1) | BR8701748A (en) |
DE (1) | DE3616355A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10197018B4 (en) * | 2000-12-20 | 2006-02-09 | Siemens Vdo Automotive Corporation, Auburn Hills | Method for controlling a valve system |
CN108138681A (en) * | 2015-11-19 | 2018-06-08 | 马自达汽车株式会社 | The fuel injection control system of engine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5402760A (en) * | 1992-05-21 | 1995-04-04 | Nippondenso Co., Ltd. | Fuel injection control apparatus for internal combustion engine |
JP4691523B2 (en) | 2007-05-09 | 2011-06-01 | 日立オートモティブシステムズ株式会社 | Control circuit for electromagnetic fuel injection valve |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3021454A (en) * | 1958-04-11 | 1962-02-13 | Bendix Corp | Control circuit for electromagnetic devices |
DE1919702A1 (en) * | 1969-04-18 | 1970-11-26 | Bosch Gmbh Robert | Method for reducing the response time of solenoid valves |
US3820198A (en) * | 1972-06-21 | 1974-06-28 | Int Harvester Co | Switching circuitry for sequential fuel injection |
FR2538942B1 (en) * | 1982-12-29 | 1989-05-05 | Renault | CONTROL DEVICE FOR QUICK-OPERATING ELECTROMAGNETIC MEMBER (S), SUCH AS ELECTROVALVE (S) OR INJECTOR (S) |
-
1986
- 1986-05-15 DE DE19863616355 patent/DE3616355A1/en not_active Withdrawn
- 1986-12-02 EP EP86116760A patent/EP0245540A3/en not_active Withdrawn
-
1987
- 1987-04-13 BR BR8701748A patent/BR8701748A/en unknown
- 1987-05-15 JP JP11721187A patent/JPS62276242A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10197018B4 (en) * | 2000-12-20 | 2006-02-09 | Siemens Vdo Automotive Corporation, Auburn Hills | Method for controlling a valve system |
CN108138681A (en) * | 2015-11-19 | 2018-06-08 | 马自达汽车株式会社 | The fuel injection control system of engine |
Also Published As
Publication number | Publication date |
---|---|
JPS62276242A (en) | 1987-12-01 |
EP0245540A2 (en) | 1987-11-19 |
EP0245540A3 (en) | 1988-03-02 |
BR8701748A (en) | 1988-01-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |