EP1171693B1 - Schaltung zur laststeuerung und verfahren zum notlaufbetrieb einer brennkraftmaschine - Google Patents
Schaltung zur laststeuerung und verfahren zum notlaufbetrieb einer brennkraftmaschine Download PDFInfo
- Publication number
- EP1171693B1 EP1171693B1 EP00934888A EP00934888A EP1171693B1 EP 1171693 B1 EP1171693 B1 EP 1171693B1 EP 00934888 A EP00934888 A EP 00934888A EP 00934888 A EP00934888 A EP 00934888A EP 1171693 B1 EP1171693 B1 EP 1171693B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control unit
- valve
- load
- internal combustion
- combustion engine
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 33
- 238000000034 method Methods 0.000 title claims description 9
- 238000004891 communication Methods 0.000 claims description 25
- 230000004913 activation Effects 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 230000002457 bidirectional effect Effects 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 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
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- 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
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/266—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the computer being backed-up or assisted by another circuit, e.g. analogue
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2201/00—Electronic control systems; Apparatus or methods therefor
Definitions
- the invention relates to a circuit for load control Mixed-suction internal combustion engine with at least one electromechanically actuated inlet valve or a method for emergency operation for a mixed-suction internal combustion engine with at least one electromechanically operated inlet valve, the load control of the internal combustion engine only by controlling the actuation of the intake valve is effected.
- the winding of the respective electromagnet, the required Current in the capture phase is greater than in the hold phase, in which the valve is held in an end position.
- Such an electromechanical gas exchange valve actuation has the advantage that in a mixed-suction Otto engine the load control directly by controlling the Actuation of the inlet valves can take place, at least in one wide load range. For example, for low The additional actuation of a throttle valve can carry loads to be necessary.
- a control system is known from EP 0376714 A2 that when detected defects of electromagnetic pores, each operate an inlet valve, generate an error signal, around the corresponding intake valves disabled.
- the valve control unit receives a signal about the crankshaft position as well as suitable specifications from the operating control unit the internal combustion engine. It is therefore with this operating control device over a communication line, usually a CAN bus connected.
- the valve control unit provides the internal combustion engine the electromechanical actuation of the inlet valves to predefined control times (e.g. Full control times), and the operating control unit brings one Throttle valve, which is open in normal operation, in a suitable Load position when communication or data exchange between the operation control unit and the valve control unit is disturbed. Behavior during this emergency operation the internal combustion engine then looks like an internal combustion engine with conventional camshaft valve train.
- predefined control times e.g. Full control times
- valve control unit waits for the next cycle to work advantageously a certain period of time with the Conversion to ensure that the throttle valve is in the required load position was driven.
- the initiation of the limp-home mode can either be from the operating control unit the valve control unit via a separate error signal line are displayed - of course the valve control unit can also be displayed a failure of the communication link via this error signal line to the operating control unit report -, or the valve control unit alone or valve control unit and the operating control unit together manage emergency operation independently.
- valve control unit can Actuate throttle directly or indirectly.
- the circuit of Fig. 1 shows the control electromechanically driven gas exchange valves 5a, 5b, 6a, 6b. On is such an electromechanically driven gas exchange valve described for example in German utility model 297 12 502 U1.
- the circuit shown in Fig. 1 is for a 4-cylinder internal combustion engine shown, but this is The number of cylinders is only to be understood as an example.
- a cylinder has two intake valves 5a, 5b, which are also how the two exhaust valves 6a, 6b actuated electromechanically become.
- a landing controller 2 or 3 is provided for the intake and exhaust valves 5a, 5b and 6a, 6b.
- the Lift controller 2, 3 controls output stages, which energize of the respective coils of the valves 5a, 5b, 6a, 6b. For example, there is a separate one for each coil Power stage provided.
- the slip-on controller 2, 3 and the output stages are housed in a housing that connects to the cooling circuit the internal combustion engine is connected to good heat dissipation to ensure.
- the placement controller 2, 3 controls the output stages depending on Timing signals that indicate when the corresponding Valve to open or close. Any timing signal is, for example, a square wave signal in which the falling Edge closing the valve, the rising edge indicates the opening of the valve.
- the timing signals are touchdown controllers 2, 3 via unidirectional communication lines 4 supplied by a communication computer 1, the will be described later.
- Each touchdown controller 2, 3 has a digital processor that controls the energization of the coils of the output stages so that the Valve 5a, 5b, 6a, 6b in the desired end position gently touches down. Usually the valve is moved from an end position to bring in the other, energizing the coil the end position to be left switched off and the current supply the coil of the new end position to be assumed. The current is from the processor of the touchdown controller 2, 3 regulated that the valve is gentle, i.e. subdued in the new End position touches down. The touchdown controller is used for this regulation 2,3 a position signal that provides information about the Position of the valve 5a, 5b 6a, 6b there. To generate this Position signal is each electromechanical valve 5a, 5b, 6a, 6b provided with a suitable position sensor, as he for example in the German application 197 53 275 or the DE 195 18 056 A1 is described.
- the regulation of the coil current for catching the valve 5a, 5b, 6a, 6b in the end position is, for example, in DE 195 26 683 A1 described in principle.
- the touchdown controller measures this the actual current through the coil and gives the value of the target current to the final stage.
- electricity instead of electricity, however another size can be used which is the actuation of the actuator, e.g. the driver voltage of the output stage.
- Each touchdown controller 2, 3 also leads to the regulation of Coil energization still a plausibility check of the signals through, i.e. of the position signal and the coil energization. From the latter, as known from DE 195 26 683 A1 is to be derived from another signal that statements about the position of the valve 5a, 5b, 6a, 6b allows, so that the position signal is checked by means of this further signal can be.
- Each touchdown controller 2, 3 is via an additional SPI-BUS Interface connected to the communication computer 1 and reports the state of the valve 5a, 5b, 6a, 6b or one possible valve failure via this interface.
- the communication computer 1 is connected to a CAN bus 8 and uses it to communicate with the operating control unit 9 of the internal combustion engine. Continue to receive he calculates the crankshaft signal and calculates it together with the requirements of the operating control device 9 the Timing signals for touchdown controller 2, 3 and gives them over the unidirectional communication lines 4 to the Lift controller 2, 3 off. It communicates via the SPI-BUS 7 additionally with touchdown controllers 2, 3 and exchanges the status information or error information. Further the communication computer 1 monitors the entire electromechanical Valve train, i.e. the temperature of the power amplifiers for the valves 5a, 5b, 6a, 6b, the supply voltage of these Power amplifiers (usually 42 V), the supply voltage of the Position sensors (usually 15 V) and the supply voltage touchdown controller 2, 3 (usually 3.3 V).
- FIG. 2 the internal combustion engine with the electromechanical actuated valves 5a, 5b, 6a, 6b shown in more detail.
- the internal combustion engine 10 has electromechanically actuated ones Inlet valves 5a, 5b, of which only in Fig. 2 two are shown.
- the electromechanically operated exhaust valves are not shown in Fig. 2.
- This electromechanically actuated intake valves 5a, 5b are on the previously controlled by a touchdown controller 2, the manner described with a communication computer 1 connected is.
- the internal combustion engine 10 also has an intake tract 11, in which a throttle valve 12 is located.
- This throttle valve 12 can via a throttle valve control line 13 from the operating control device 9 of the internal combustion engine can be controlled.
- the operation control device 9 is how already described, via the CAN bus 8 with the communication computer 1 connected to the valve control. In addition to The operation control device 9 can be connected via the CAN bus 8 still optionally an error signal line 14 as a connection to Have communication computer 1.
- the actuation of the inlet valves 5a, 5b is controlled now so that the internal combustion engine 10 with certain Load is running. This is about the tax times, especially the Duration of opening of the intake valves causes.
- the burden will be the Communication computer 1 from the operating control device 9 of the internal combustion engine specified via the CAN-BUS 8.
- the throttle valve 12 can Internal combustion engine, which is located in its intake tract 11, remain in the open position and do not have to be via the throttle valve control line 13 can be controlled.
- the operating control device 9 If the operating control device 9 represents a fault in the data exchange via the CAN bus 8, it assigns the communication computer 1 via the error signal line 14, the valve timing to fixed tax times, for example To convert full load control times. To load control nonetheless to be able to carry out the internal combustion engine drives that Operating control unit 9 simultaneously via the throttle valve control line 13 the throttle valve 12 in the appropriate load position. The load control of the internal combustion engine 10 takes place then like an internal combustion engine with conventional Camshaft adjustment.
- the communication computer 1 advantageously provides the touchdown controller 2 the electromechanical actuation of the Inlet valves 5a, 5b with a certain time offset compared the reception of the signal on the error signal line 14 on the Full load control times around, as now explained with reference to FIG. 3 will be.
- Fig. 3 in curve 21 is the load default value, which results from the position of the throttle valve 12 results.
- the internal combustion engine 9 determines that the Communication over the CAN-BUS 8 is disturbed and starts that Throttle valve 12 from full load to that of the corresponding Operating phase corresponding load position z. B. 20% Bring burden.
- the throttle valve 12 for such Position change e.g. 80% requires a certain period of time, it takes the time span dt, in our example about 30 ms until the throttle valve 12 in the corresponding load position drove. Switching the intake valves to In contrast, full-load control times can vary from one work cycle to the next next done.
- time t1 or Time offset dt naturally depends on the actuating speed the throttle valve 12. Because the throttle typically 100 ms required to switch from load position 100% to load position 0 %, the time offset should be of the order of magnitude of 100 ms.
- the error signal line 14 between the operational control device 9 and the Communication computer 1 can be dispensed with.
- the communication computer 1 represents the electromechanical actuation of the Intake valves automatically switch to full load control times and redirects emergency operation if there is a failure or a Disruption of data exchange via CAN-BUS 8 is detected.
- the operation control device 9 does the same, so that both are independent and automatically from normal operation with load control Actuation of the inlet valves 5a, 5b in emergency operation with load control change through the throttle valve 12.
- the communication computer 1 an opportunity to intervene on the position of Throttle valve 12, e.g. through a suitable arrangement of logical Structure in the throttle valve control line 13. Detects this then a malfunction or failure of the data exchange via the CAN-BUS 8, either automatically or by a corresponding signal on the error signal line 14, it effects the switch to emergency mode itself. Is in a suitable AND gate is connected to the throttle valve control line, can the operation control device 9 via a suitable Line control of the throttle valve 12 then take over yourself.
- This embodiment has the advantage that the synchronicity between switching off the valve load control and turning on throttle load control during transition in emergency operation is guaranteed.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
Claims (9)
- Verfahren zum Notlaufbetrieb einer gemischsaugenden Brennkraftmaschine (10) mit mindestens einem elektromechanisch betätigten Einlaßventil (5a, 5b), deren Laststeuerung bei normalem Betrieb vorwiegend durch die Ansteuerung des mindestens einen Einlaßventils (5a, 5b) von einem Ventilsteuergerät (1, 2) nach Vorgabe durch ein Betriebssteuergerät (9) der Brennkraftmaschine (9) erfolgt, dadurch gekennzeichnet daß das Betriebssteuergerät (9) auf Laststeuerung durch eine Drosselklappe (12) umstellt und daß, das Ventilsteuergerät (1, 2) die elektromechanische Betätigung des Einlaßventils (5a, 5b) auf fest vorgegebene Steuerzeiten umstellt, wenn das Betriebssteuergerät (9) erkennt, daß die Laststeuerung durch die Ansteuerung des Einlaßventils (5a, 5b) nicht normal arbeitet.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Betriebssteuergerät (9) den Notlaufbetrieb beginnt, wenn die Kommunikation zwischen dem Betriebssteuergerät (9) und dem Ventilsteuergerät (1, 2) gestört ist, indem es über eine Fehlerleitung (14) ein Signal an das Ventilsteuergerät (1, 2) gibt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Betriebssteuergerät (9) und das Ventilsteuergerät (1) gemeinsam und eigenständig den Notlaufbetrieb beginnen, wenn die Kommunikation zwischen dem Betriebssteuergerät (9) und dem Ventilsteuergerät (1, 2) gestört ist.
- Verfahren nach einem der vorhergehenden Verfahrensansprüche, dadurch gekennzeichnet, daß das Ventilsteuergerät (1, 2) mit einer Zeitverzögerung auf fest vorgegebene Steuerzeiten umstellt, um sicherzustellen, daß die Drosselklappe (10) in eine zur Laststeuerung geeignete Stellung gebracht wurde.
- Schaltung zur Laststeuerung einer gemischsaugenden Brennkraftmaschine (10), bei der mindestens ein Einlaßventil (5a, 5b) elektromechanisch betätigt ist, mit einem Ventilsteuergerät (1, 2), das ein Kurbelwellenstellungssignal auswertet und mit einem Betriebssteuergerät (9) der Brennkraftmaschine (10) Daten austauscht und abhängig vom Kurbelwellenstellungssignal und von dem vom Betriebssteuergerät (9) erhaltenen Daten das Einlaßventil (5a, 5b) so betätigt, daß die Brennkraftmaschine (10) unter der vom Betriebssteuergerät (9) geforderten Last läuft, dadurch gekennzeichnet dass, bei einer Störung des Datenaustausches zwischen Ventilsteuergerät (1, 2) und Betriebssteuergerät (9) das Ventilsteuergerät (1, 2) die Betätigung des Einlaßventils (5a, 5b) auf fest vorgegebene Steuerzeiten umstellt und das Betriebssteuergerät (9) die Laststeuerung über eine Drosselklappe (12) bewirkt.
- Schaltung nach Anspruch 5, gekennzeichnet durch eine bidirektionale BUS-Verbindung (8) zwischen dem Betriebssteuergerät (9) und dem Ventilsteuergerät (1, 2) zum Datenaustausch, wobei das Ventilsteuergerät (1, 2) bei Störung der BUS-Verbindung (8) eigenständig auf fest vorgegebene Steuerzeiten umstellt.
- Schaltung nach Anspruch 5, gekennzeichnet durch eine Fehlersignalleitung (14) zwischen Betriebssteuergerät (9) und Ventilsteuergerät (1, 2), wobei das Ventilsteuergerät (1, 2) auf fest vorgegebene Steuerzeiten umstellt, wenn an der Fehlersignalleitung (14) ein vorbestimmtes Signal anliegt.
- Schaltung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß das Ventilsteuergerät (1, 2) mit einem Zeitversatz auf fest vorgegebene Steuerzeiten umstellt, um sicherzustellen, daß die Drosselklappe (12) in eine zur Laststeuerung geeignete Stellung gebracht wurde.
- Schaltung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß das Ventilsteuergerät (1, 2) eine direkte oder mittelbare Eingriffsmöglichkeit auf die Drosselklappe (12) hat und bei Einleiten des Notlaufbetriebes über diese Eingriffsmöglichkeit ein Stellen der Drosselklape in die erforderliche Laststellung bewirkt.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19918032 | 1999-04-21 | ||
| DE19918032A DE19918032C1 (de) | 1999-04-21 | 1999-04-21 | Schaltung zur Laststeuerung und Verfahren zum Notlaufbetrieb einer Brennkraftmaschine |
| PCT/DE2000/001117 WO2000063535A1 (de) | 1999-04-21 | 2000-04-11 | Schaltung zur laststeuerung und verfahren zum notlaufbetrieb einer brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1171693A1 EP1171693A1 (de) | 2002-01-16 |
| EP1171693B1 true EP1171693B1 (de) | 2002-11-13 |
Family
ID=7905325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00934888A Expired - Lifetime EP1171693B1 (de) | 1999-04-21 | 2000-04-11 | Schaltung zur laststeuerung und verfahren zum notlaufbetrieb einer brennkraftmaschine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6567740B2 (de) |
| EP (1) | EP1171693B1 (de) |
| JP (1) | JP2002542421A (de) |
| DE (2) | DE19918032C1 (de) |
| WO (1) | WO2000063535A1 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10108055C1 (de) * | 2001-02-20 | 2002-08-08 | Siemens Ag | Verfahren zum Steuern einer Brennkraftmaschine |
| DE10221015A1 (de) * | 2002-05-11 | 2003-11-27 | Daimler Chrysler Ag | Brennkraftmaschine und Verfahren zum Betreiben derselben |
| JP4083647B2 (ja) | 2003-08-21 | 2008-04-30 | トヨタ自動車株式会社 | 内燃機関の吸入空気量制御装置 |
| JP4097217B2 (ja) * | 2004-04-06 | 2008-06-11 | 本田技研工業株式会社 | 車両用カスタマイズシステム |
| DE102005006491B4 (de) * | 2005-02-12 | 2008-09-04 | Audi Ag | Verfahren und Vorrichtung zur Ansteuerung von Nockenprofilen einer Nockenwelle einer mehrzylindrigen Brennkraftmaschine |
| WO2007146945A2 (en) * | 2006-06-12 | 2007-12-21 | Aspen Aerogels, Inc. | Aerogel-foam composites |
| FR2906298B1 (fr) * | 2006-09-25 | 2008-12-26 | Valeo Sys Controle Moteur Sas | Systeme de commande de soupape a detection de defaillance |
| FR2916799B1 (fr) * | 2007-05-30 | 2013-06-07 | Valeo Sys Controle Moteur Sas | Procede et dispositif de commande de soupape avec plusieurs phases de levee, procede d'alimentation d'un moteur |
| US7865290B2 (en) * | 2007-10-09 | 2011-01-04 | Ford Global Technologies, Llc | Valve control synchronization and error detection in an electronic valve actuation engine system |
| WO2010012870A1 (fr) * | 2008-07-30 | 2010-02-04 | Valeo Systemes De Controle Moteur | Unité de commande d'un ou plusieurs actionneurs électromagnétiques de soupape de moteur thermique, et différents ensembles de telles unités de commande et de tels actionneurs électromagnétiques |
| DE102023134248A1 (de) * | 2023-12-07 | 2025-06-12 | Audi Aktiengesellschaft | Ventilsteuersystem für ein Kraftfahrzeug |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02181009A (ja) * | 1988-12-28 | 1990-07-13 | Isuzu Motors Ltd | 電磁駆動バルブ制御装置 |
| JP3683300B2 (ja) | 1995-01-27 | 2005-08-17 | 本田技研工業株式会社 | 内燃機関の制御装置 |
| DE19503460C1 (de) * | 1995-02-03 | 1996-03-07 | Daimler Benz Ag | Fehlertolerante Endstufe für ein digitales Zweileiterbus-Datenkommunikationssystem |
| DE19518056B4 (de) | 1995-05-17 | 2005-04-07 | Fev Motorentechnik Gmbh | Einrichtung zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung und Verfahren zur Ansteuerung |
| DE19526683A1 (de) * | 1995-07-21 | 1997-01-23 | Fev Motorentech Gmbh & Co Kg | Verfahren zur Erkennung des Ankerauftreffens an einem elektromagnetisch betätigbaren Stellmittel |
| DE19610468B4 (de) * | 1995-08-08 | 2008-04-24 | Fev Motorentechnik Gmbh | Verfahren zur lastabhängigen Steuerung der Gaswechselventile an einer Kolbenbrennkraftmaschine |
| JPH1047142A (ja) * | 1996-07-31 | 1998-02-17 | Suzuki Motor Corp | エンジン制御装置 |
| DE29712502U1 (de) | 1997-07-15 | 1997-09-18 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Elektromagnetischer Aktuator mit Gehäuse |
| DE29712602U1 (de) * | 1997-07-17 | 1997-09-18 | Schmidt Reuter Ingenieurgesellschaft mbH & Partner KG, 50823 Köln | Rohrdämmung für im Fußboden verlegte Rohre |
| DE19753275C2 (de) * | 1997-12-01 | 2001-05-23 | Siemens Ag | Elektromechanisches Stellgerät |
| DE19756342C2 (de) * | 1997-12-18 | 2003-02-13 | Conti Temic Microelectronic | Verfahren zur Steuerung einer Brennkraftmaschine |
| DE19815056A1 (de) * | 1998-04-03 | 1999-10-07 | Siegfried Hillenbrand | Vorrichtung zur Untersuchung von Werkstücken |
| JPH11294252A (ja) * | 1998-04-13 | 1999-10-26 | Denso Corp | 電子制御装置 |
-
1999
- 1999-04-21 DE DE19918032A patent/DE19918032C1/de not_active Expired - Fee Related
-
2000
- 2000-04-11 JP JP2000612601A patent/JP2002542421A/ja not_active Withdrawn
- 2000-04-11 WO PCT/DE2000/001117 patent/WO2000063535A1/de not_active Ceased
- 2000-04-11 EP EP00934888A patent/EP1171693B1/de not_active Expired - Lifetime
- 2000-04-11 DE DE50000759T patent/DE50000759D1/de not_active Expired - Fee Related
-
2001
- 2001-10-22 US US10/033,235 patent/US6567740B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000063535A1 (de) | 2000-10-26 |
| JP2002542421A (ja) | 2002-12-10 |
| US6567740B2 (en) | 2003-05-20 |
| DE50000759D1 (de) | 2002-12-19 |
| DE19918032C1 (de) | 2000-11-16 |
| EP1171693A1 (de) | 2002-01-16 |
| US20020072837A1 (en) | 2002-06-13 |
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