EP0704097A1 - Vorrichtung und ein verfahren zur ansteuerung eines elektromagnetischen verbrauchers - Google Patents
Vorrichtung und ein verfahren zur ansteuerung eines elektromagnetischen verbrauchersInfo
- Publication number
- EP0704097A1 EP0704097A1 EP95913053A EP95913053A EP0704097A1 EP 0704097 A1 EP0704097 A1 EP 0704097A1 EP 95913053 A EP95913053 A EP 95913053A EP 95913053 A EP95913053 A EP 95913053A EP 0704097 A1 EP0704097 A1 EP 0704097A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching means
- energy
- consumer
- phase
- capacitor
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title abstract description 5
- 239000000446 fuel Substances 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 42
- 238000004146 energy storage Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000012217 deletion Methods 0.000 description 4
- 230000037430 deletion Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
- H01F7/1816—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current making use of an energy accumulator
-
- 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
- F02D2041/2003—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening
- F02D2041/2006—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening by using a boost capacitor
-
- 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
- F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
- F02D2041/2072—Bridge circuits, i.e. the load being placed in the diagonal of a bridge to be controlled in both directions
Definitions
- the invention relates to a device and a method for controlling an electromagnetic consumer according to the preambles of the independent claims.
- a device for controlling an electromagnetic consumer is known from DE-OS 37 02 680.
- a circuit arrangement for controlling an electromagnetic consumer is described on site.
- An electronic switching element arranged in series with the consumer can be bridged by an extinguishing circuit.
- This extinguishing circuit contains one Energy storage in the form of a capacitor for receiving the energy stored in the consumer.
- a disadvantage of this circuit arrangement is that it is complex in terms of components and requires a voluminous capacitor for intermediate energy storage, which capacitor is constantly charged at least to supply voltage. In addition to the capacitor, at least two series diodes are required.
- the energy stored in the consumer is stored in a capacitor with each switching operation. This temporarily stored energy is passed to a second consumer the next time it is activated.
- a device for controlling a consumer is known from DE-OS-37 34 415.
- the energy released when switching off is stored in a capacitor.
- the stored energy is supplied to the consumer.
- at least two further switching means are required compared to a device without energy feedback.
- the invention is based on the object of providing in a device for controlling an electromagnetic consumer a device which is as simple as possible and which accelerates the switching-on process and minimizes the overall energy consumption.
- circuit arrangement according to the invention with the features of the independent claims has the advantage that there is a lossless deletion. Furthermore, by reusing the energy stored during the deletion process when switching on, the current increase can be increased. This in turn leads to a reduction in the solenoid valve switching time.
- FIG. 1 shows a circuit arrangement of the device according to the invention
- FIG. 2 shows various signals plotted over time
- FIGS. 3 and 4 relate to circuit arrangements.
- the device according to the invention is preferably used in internal combustion engines, in particular in self-igniting internal combustion engines.
- the fuel metering is controlled by means of electromagnetic valves.
- These electromagnetic valves are referred to below as consumers.
- the invention is not limited to this application, it can be used anywhere, where fast switching electromagnetic valves are needed.
- the opening and closing times of a solenoid valve determine the start of injection or the end of injection.
- the period between the activation of the solenoid valve and the actual opening or closing of the solenoid valve is usually referred to as the switching time.
- the switching time In the case of diesel internal combustion engines in particular, it is desirable that the switching time be as short as possible.
- FIG. 100 denotes the consumer to be controlled.
- a first connection of the consumer 100 is connected to a connection point 105 and the second connection is connected to a connection point 110.
- the node 100 is connected to the ground terminal 120 via a first switching means 115.
- the second connection point 110 is in contact with the cathode of a first diode 125.
- the anode of the first diode 125 is at ground potential. 5 -
- the node 105 is in contact with the anode of a second diode 130.
- the node 110 is in contact with the cathode of the second diode 130 via a second switching means 135.
- connection point between the cathode of the second diode 130 and the switching means 135 is in contact with the cathode of a third diode 140 and the one connection of a capacitor 145.
- the second connection of the capacitor 145 and the anode of the third diode 140 are connected to a voltage source, which supplies them with the supply voltage U] - > at .
- the arrangement of the consumer 100, the two switching means 115 and 135 and the first and second diodes 125 and 130 is usually referred to as a half bridge.
- a first phase which generally only occurs when the capacitor 145 is discharged for the first time, the first switching means 115 and the second switching means 135 are closed and release the current flow through the consumer.
- the current flows via the path consisting of the third diode 140, the second switching means 135, the consumer 100 and the first switching means 115.
- a second phase which is also referred to as a deletion phase
- the first switching means 115 and the second switching means 135 are in their open state.
- a current flows via the path consisting of the first diode 125, the consumer 100, the second diode 130 and the capacitor 145.
- the energy stored in the consumer 100 is transferred to the capacitor 145 and the voltage source reloaded.
- the aim of the extinguishing phase is to reduce the current flowing through the consumer to zero in the shortest possible time.
- a third phase the first switching means 115 and the second switching means 135 are closed and the current flows through the path consisting of the capacitor 145, the second switching means 135, the consumer 100 and the first switching means 115 Capacitor 145 stored energy returned to the consumer as well as transferring energy from the voltage source to the consumer.
- This phase is also referred to as the tightening phase. Their goal is to keep the closing time of the solenoid valve as short as possible through a high current level.
- a fourth phase the current flows through the path consisting of the third diode 140, the second switching means 135, the consumer 100 and the first switching means 115.
- the energy loss is provided by the voltage source.
- the third diode 140 prevents the capacitor 145 from being charged positively.
- the so-called holding current phase the second switching means 135 remains in its closed state and the switching means 115 is operated in a clocked manner, which means that it is opened and closed alternately. This is usually done in such a way that a certain current value is established on average over time.
- the capacitor 145 remains in its discharged state.
- the power loss is reduced by lowering the target current level and by clocking.
- a control unit (not shown) emits the control signal shown in the first line of FIG.
- the switching means 135 closes.
- the first switching means 115 releases the current flow.
- the third phase begins at the time T1. This means that the current I applied in the third line, which flows through the solenoid valve, increases sinusoidally. At the same time, the voltage U ⁇ applied to ground at the cathode of the third diode 140, which is shown in the fourth line, drops cosine. This third phase ends at time T2.
- the voltage applied to the cathode of the third diode 140 is Uj- voltage to a value U j - at, len beaufal ⁇ . This means that the capacitor 145 is no longer discharged, since the voltage U c across the capacitor assumes the value zero. Furthermore, the third diode 140 prevents positive charging of the capacitor 145. From time T2 to time T3, the device is in the fourth phase, in which the supply voltage provides the required energy. The voltage applied to the third diode 140 or to the capacitor 140 remains at zero. During this phase, the current increases linearly over time until it reaches its specified starting current setpoint i ⁇ .
- the current is adjusted to the pull-in current setpoint i- ⁇ correspondingly as in the fifth phase.
- the device reaches the fifth phase, the so-called clocking phase.
- the current that flows through the consumer is adjusted to a predetermined holding current setpoint value ⁇ 2.
- a two-point controller is preferably used here, which compares the current flowing through the consumer with a predeterminable value. If the current exceeds an upper value, only the switching means 115 opens. If the current falls below a lower value, the switching means 115 opens. This leads to the current in this fifth phase moving back and forth between the upper and the lower value pen ⁇ delt. In this fifth phase, the second switching means 135 remains closed, so there is no energy transfer between the capacitor 140 and the consumer 100.
- the timing phase is followed by the second phase from time T4.
- the control signals plotted in the first and second lines of FIG. 2 end. This means that both switching means are opened. As a result, the current decreases sinusoidally.
- the voltage U j - at the capacitor 145 or at the cathode of the third diode 140 rises to a value U D above the supply voltage U ] -, a t. This means the capacitor is recharged.
- the capacitor 145 and the consumer 100 form an oscillating circuit in which the energy is transferred from the consumer to the voltage source and the capacitor 145 in the second phase and from the voltage source and the capacitor 145 to the consumer in the third phase .
- the clocking in the fifth phase there is no recharge between the consumer and the capacitor.
- a further switching means 200 is arranged between the supply voltage and the capacitor 145.
- the connection point between this switching means 200 is an additional switching means 220 connected to ground.
- the switching means 135 and 115 are opened, the additional switching means 220 are closed and the further switching means 200 are also opened.
- the capacitor is charged to the supply voltage, so that additional energy is available for accelerating the current build-up for the first current build-up after a long standstill.
- FIG. 3b A further embodiment is shown in FIG. 3b.
- an inductor 210 is arranged between the additional switching means 220 and the further switching means 200. This circuit has the advantage that the capacitor is charged to a voltage which corresponds to twice the supply voltage by the resonant circuit formed by inductor 210 and capacitor 145.
- FIG. 4 shows a further embodiment of the invention.
- a further switching means 200 is arranged between the supply voltage and the capacitor 145.
- the connection point between this switching means 200 and the capacitor 145 is in contact with the connection point between diode 130, consumer 100 and switching means 115.
- connection point 110 is connected to ground via a switching means 400.
- the switching means 135 and 115 are opened, the switching means 200 and 400 are closed. As a result, the capacitor is charged to a voltage that corresponds to twice the supply voltage. In this embodiment, the consumer 100 takes over the functions of the throttle 210.
- the switching means are preferably implemented as transistors, in particular as field-effect transistors.
- the switching means are acted upon by control signals (not shown) with control signals.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Magnetically Actuated Valves (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4413240A DE4413240A1 (de) | 1994-04-16 | 1994-04-16 | Vorrichtung und ein Verfahren zur Ansteuerung eines elektromagnetischen Verbrauchers |
| DE4413240 | 1994-04-16 | ||
| PCT/DE1995/000408 WO1995028721A1 (de) | 1994-04-16 | 1995-03-24 | Vorrichtung und ein verfahren zur ansteuerung eines elektromagnetischen verbrauchers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0704097A1 true EP0704097A1 (de) | 1996-04-03 |
| EP0704097B1 EP0704097B1 (de) | 2000-02-16 |
Family
ID=6515630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95913053A Expired - Lifetime EP0704097B1 (de) | 1994-04-16 | 1995-03-24 | Vorrichtung und ein verfahren zur ansteuerung eines elektromagnetischen verbrauchers |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5729422A (de) |
| EP (1) | EP0704097B1 (de) |
| JP (1) | JPH08512436A (de) |
| DE (2) | DE4413240A1 (de) |
| WO (1) | WO1995028721A1 (de) |
Families Citing this family (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027198A1 (de) * | 1995-03-02 | 1996-09-06 | Robert Bosch Gmbh | Vorrichtung zur ansteuerung wenigstens eines elektromagnetischen verbrauchers |
| US5907466A (en) * | 1995-09-23 | 1999-05-25 | Robert Bosch Gmbh | Device and process for activating at least two electromagnetic loads |
| DE19634342B4 (de) * | 1996-08-24 | 2007-05-16 | Bosch Gmbh Robert | Vorrichtung zur Ansteuerung wenigstens zweier elektromagnetischer Verbraucher |
| GB9619786D0 (en) * | 1996-09-20 | 1996-11-06 | Lucas Ind Plc | Drive circuit |
| DE19701471A1 (de) | 1997-01-17 | 1998-07-23 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers |
| DE19711768B4 (de) * | 1997-03-21 | 2007-04-05 | Bosch Rexroth Aktiengesellschaft | Elektromagnetischer Stellantrieb |
| DE19742283A1 (de) * | 1997-09-25 | 1999-04-08 | Veit Zoeppig | Pneumatikventil |
| IT1296664B1 (it) | 1997-12-19 | 1999-07-14 | Fiat Ricerche | Dispositivo di comando di elettroattuatori. |
| DE59901216D1 (de) | 1998-08-13 | 2002-05-16 | Siemens Ag | Einrichtung zum steuern eines stellgeräts |
| DE19922485B4 (de) * | 1999-05-15 | 2008-06-12 | Robert Bosch Gmbh | Verfahren und Schaltungsanordnung zur Ansteuerung eines Doppelspulen-Hochdruckeinspritzmagnetventils für die Kraftstoffeinspritzung |
| DE19947958C1 (de) * | 1999-10-06 | 2001-06-21 | Uni Geraete E Mangelmann Elekt | Magnetventil |
| DE10123519A1 (de) * | 2001-05-15 | 2002-12-05 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Erhöhung des Spannungsniveaus an hochdynamischen induktiven Stellgliedern |
| DE10140550B4 (de) * | 2001-08-17 | 2007-08-02 | Robert Bosch Gmbh | Verfahren zur Funktionsüberwachung schnellschaltender Einspritzventile |
| RU2228556C2 (ru) * | 2001-11-21 | 2004-05-10 | Общество с ограниченной ответственностью "ДимАл" | Способ управления грузоподъемным электромагнитом |
| GB0200030D0 (en) * | 2002-01-02 | 2002-02-13 | Bae Systems Plc | A switching circuit and a method of operation thereof |
| GB0200024D0 (en) * | 2002-01-02 | 2002-02-13 | Bae Systems Plc | A switching circuit and a method of operation thereof |
| GB0200027D0 (en) | 2002-01-02 | 2002-02-13 | Bae Systems Plc | Improvements relating to operation of a current controller |
| DE10202279A1 (de) * | 2002-01-22 | 2003-08-07 | Siemens Ag | Steuerschaltung für einen Aktor |
| RU2235379C2 (ru) * | 2002-02-04 | 2004-08-27 | Общество с ограниченной ответственностью "ДимАл" | Устройство управления грузоподъемным электромагнитом |
| US6850402B2 (en) * | 2002-03-01 | 2005-02-01 | Honeywell International Inc. | Circuit and method for controlling current flow through a solenoid |
| DE10232742A1 (de) * | 2002-07-19 | 2004-02-05 | Ina-Schaeffler Kg | Treiberstufe für ein Solenoidventil |
| DE10232741A1 (de) * | 2002-07-19 | 2004-02-05 | Ina-Schaeffler Kg | Treiberstufe für ein Solenoidventil |
| FR2846808B1 (fr) * | 2002-11-04 | 2005-06-24 | Renault Sa | Dispositif d'actionnement muni d'une topologie electronique de pilotage |
| JP2004197629A (ja) * | 2002-12-18 | 2004-07-15 | Denso Corp | 電磁負荷駆動装置 |
| RU2237305C1 (ru) * | 2003-02-17 | 2004-09-27 | Шутиков Владимир Антонович | Электромагнит с форсировкой |
| US7057870B2 (en) * | 2003-07-17 | 2006-06-06 | Cummins, Inc. | Inductive load driver circuit and system |
| US7690395B2 (en) | 2004-01-12 | 2010-04-06 | Masco Corporation Of Indiana | Multi-mode hands free automatic faucet |
| FR2878090A1 (fr) * | 2004-11-16 | 2006-05-19 | Renault Sas | Procede de commande d'un actionneur magnetostrictif, dispositif commandable en position mettant en oeuvre le procede |
| DE102005021174B4 (de) * | 2005-05-06 | 2009-11-26 | Daimler Ag | Verfahren zur Ansteuerung eines Taktventils in einer Hochdruckpumpe eines Kraftfahrzeug-Verbrennungsmotors |
| US9243392B2 (en) | 2006-12-19 | 2016-01-26 | Delta Faucet Company | Resistive coupling for an automatic faucet |
| US7806141B2 (en) | 2007-01-31 | 2010-10-05 | Masco Corporation Of Indiana | Mixing valve including a molded waterway assembly |
| WO2008094651A1 (en) | 2007-01-31 | 2008-08-07 | Masco Corporation Of Indiana | Capacitive sensing apparatus and method for faucets |
| CA2675417C (en) | 2007-03-28 | 2015-10-13 | Masco Corporation Of Indiana | Improved capacitive touch sensor |
| CA2708577C (en) | 2007-12-11 | 2014-08-05 | Masco Corporation Of Indiana | Capacitive coupling arrangement for a faucet |
| JP4859951B2 (ja) * | 2009-05-14 | 2012-01-25 | 三菱電機株式会社 | 車載エンジン制御装置 |
| US8776817B2 (en) | 2010-04-20 | 2014-07-15 | Masco Corporation Of Indiana | Electronic faucet with a capacitive sensing system and a method therefor |
| US8561626B2 (en) | 2010-04-20 | 2013-10-22 | Masco Corporation Of Indiana | Capacitive sensing system and method for operating a faucet |
| DE102012211994B4 (de) * | 2012-07-10 | 2024-08-08 | Vitesco Technologies GmbH | Steuergerät zur Ansteuerung zumindest einen Kraftstoffeinspritzventils und Schaltungsanordnung mit einem solchen Steuergerät |
| DE102012024862B3 (de) * | 2012-12-19 | 2013-07-04 | Audi Ag | Aktor, Kraftfahrzeug mit einem derartigen Aktor und Verfahren zum Betreiben eines Aktors |
| CA2908629A1 (en) | 2013-05-27 | 2014-12-04 | Electrolux Appliances Aktiebolag | Driver circuit for an electromagnetic dispenser |
| CN109901508B (zh) * | 2019-04-02 | 2021-01-19 | 北京天地玛珂电液控制系统有限公司 | 液压支架控制系统 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1115785B (de) * | 1960-08-13 | 1961-10-26 | Standard Elektrik Lorenz Ag | Schaltungsanordnung zum Betaetigen und Halten eines Relais mittels Kondensator |
| DE1288194B (de) * | 1964-07-01 | 1969-01-30 | Morat Gmbh Franz | Schaltungsanordnung zur Schnellerregung von gleichstrombetriebenen Elektromagneten |
| DE1219977B (de) * | 1965-01-21 | 1966-06-30 | Philips Patentverwaltung | Elektronische Schaltvorrichtung zum schnellen Abschalten und Wiedereinschalten von stromdurchflossenen Induktivitaeten |
| USRE30150E (en) * | 1971-08-02 | 1979-11-13 | Ncr Corporation | Inductor drive means |
| US3896346A (en) * | 1972-11-21 | 1975-07-22 | Electronic Camshaft Corp | High speed electromagnet control circuit |
| US4041546A (en) * | 1976-06-04 | 1977-08-09 | Ncr Corporation | Solenoid driver circuit |
| SU729743A1 (ru) * | 1978-05-16 | 1980-04-25 | Предприятие П/Я М-5170 | Устройство дл форсированного включени электромагнитного реле |
| JPS58154345A (ja) * | 1982-03-09 | 1983-09-13 | 三菱電機株式会社 | コイル間エネルギ−転送回路 |
| DE3327393A1 (de) * | 1983-07-29 | 1985-02-14 | Robert Bosch Gmbh, 7000 Stuttgart | Steuereinrichtung zum schnelleren schalten eines elektromagnetischen verbrauchers, insbesondere in verbindung mit brennkraftmaschinen |
| JPS6057729A (ja) * | 1983-09-08 | 1985-04-03 | Nippon Soken Inc | 携帯用送信器 |
| DE3702680A1 (de) * | 1986-02-18 | 1987-10-29 | Bosch Gmbh Robert | Verfahren und schaltung zur ansteuerung von elektromagnetischen verbrauchern |
| DE3734415A1 (de) * | 1987-10-12 | 1989-04-20 | Bosch Gmbh Robert | Schaltungsanordnung zur beschleunigung der versorgung eines elektromagnetischen verbrauchers |
| JPH01167008U (de) * | 1988-05-13 | 1989-11-22 | ||
| DE3939547C2 (de) * | 1989-11-30 | 1999-07-01 | Bosch Gmbh Robert | Vorrichtung zur Kraftstoffeinspritzung in Brennkraftmaschine |
| IT1251259B (it) * | 1991-12-23 | 1995-05-05 | Elasis Sistema Ricerca Fiat | Circuito di comando di carichi prevalentemente induttivi, in particolare elettroiniettori. |
-
1994
- 1994-04-16 DE DE4413240A patent/DE4413240A1/de not_active Withdrawn
-
1995
- 1995-03-24 US US08/553,709 patent/US5729422A/en not_active Expired - Fee Related
- 1995-03-24 DE DE59507809T patent/DE59507809D1/de not_active Expired - Fee Related
- 1995-03-24 WO PCT/DE1995/000408 patent/WO1995028721A1/de not_active Ceased
- 1995-03-24 EP EP95913053A patent/EP0704097B1/de not_active Expired - Lifetime
- 1995-03-24 JP JP7526609A patent/JPH08512436A/ja not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9528721A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59507809D1 (de) | 2000-03-23 |
| WO1995028721A1 (de) | 1995-10-26 |
| US5729422A (en) | 1998-03-17 |
| JPH08512436A (ja) | 1996-12-24 |
| DE4413240A1 (de) | 1995-10-19 |
| EP0704097B1 (de) | 2000-02-16 |
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