EP1198808A1 - Method for effecting an electronic drive control - Google Patents

Method for effecting an electronic drive control

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Publication number
EP1198808A1
EP1198808A1 EP00951390A EP00951390A EP1198808A1 EP 1198808 A1 EP1198808 A1 EP 1198808A1 EP 00951390 A EP00951390 A EP 00951390A EP 00951390 A EP00951390 A EP 00951390A EP 1198808 A1 EP1198808 A1 EP 1198808A1
Authority
EP
European Patent Office
Prior art keywords
time
value
delay time
supply voltage
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.)
Granted
Application number
EP00951390A
Other languages
German (de)
French (fr)
Other versions
EP1198808B1 (en
Inventor
Wolfgang Meid
Wilhelm Melchert
Gerd Schmitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Moeller GmbH filed Critical Moeller GmbH
Publication of EP1198808A1 publication Critical patent/EP1198808A1/en
Application granted granted Critical
Publication of EP1198808B1 publication Critical patent/EP1198808B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H9/563—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing

Definitions

  • the invention relates to a method for electronic drive control according to the preamble of claim 1.
  • An electronic drive control for a magnetic drive is known from EP 0 789 378 A1.
  • control voltage of a contactor is derived from one of the three phases, it can lead to synchronization effects between the closing or opening angle of the main contacts in the load circuit and the AC control voltage.
  • the object of the invention is to provide a method according to the preamble of claim 1, in which the life of a contactor is increased.
  • the invention prevents uneven erosion of the switching contacts and thus increases the contactor's service life.
  • Fig. 4 is a first flow chart
  • 5 shows a further flow chart. 1 shows a time diagram in which the rectified supply voltage is shown in a lower curve, the supply voltage being an AC voltage.
  • the voltage of the electronics After switching on the supply voltage at time t 0 , which is in the zero voltage crossing, the voltage of the electronics only builds up after 3 to 5 ms. After this voltage build-up, a reset signal for a microcontroller is issued. The program is started. After this point in time t, the state in which the contactor is operated is recognized. It is checked what type of control it is. The determination relates to conventional operation, PLC operation or low-power operation. This detection of the input takes about 5 ms, the end of the detection being identified by t 2 . If a level is present, then conventional operation is recognized.
  • Period of the control voltage is.
  • the supply voltage is measured only after this delay time, the point in time being identified by t 3 , the supply voltage being both a
  • Supply voltage is (AC or DC). At the same time, the level of the applied voltage is determined.
  • Delay time t x at any point on the sine curve Supply voltage can be.
  • the time of the tightening process varies depending on the type of protection.
  • the tightening takes place after 50 to 100 ms.
  • the switching point t 5 of the contacts is also randomly distributed for the other phases, which causes the switching contacts to be evenly stressed.
  • the dashed lines show different switch-on points, different ones
  • Microcontroller must first be set up, the reset signal is almost independent of the switch-on time always on the same point on the curve, so that the switch-on times are practically synchronized to the same reset time.
  • control voltage e.g. switched on at zero voltage
  • the supply voltage for the electronics does not build up immediately.
  • the method explained avoids undesirable synchronization effects between the closing angle or opening angle of the main contacts in the load circuit.
  • a random generator is required to implement a timer with a variable, randomly set time.
  • the value supplied by the random number generator is then processed in such a way that the subsequent processing of the value results in a time from zero to a maximum of half the period of the control voltage.
  • FIG. 3 shows a schematic diagram. In the first possibility, a value is read out in a RAM memory location in the microcontroller, the content of this cell being undefined after the voltage has been switched on.
  • FIG. 4 shows the associated flowchart for implementation with a RAM.
  • a value is obtained from a memory cell 1 of an EEPROM, which is manipulated accordingly.
  • the old value is used to determine the new value.
  • the old value is then replaced by the new value in
  • the manipulated value is then written into register 2.
  • the timer is then started. When the timer reaches zero, an arises
  • Timer underflow which is passed on to the CPU, and the program continues.
  • This additional time loop means that the closing and opening angles of the main contacts are not synchronized with the control voltage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)
  • Electronic Switches (AREA)
  • Control Of Eletrric Generators (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Valve Device For Special Equipments (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Electrical Variables (AREA)
  • Keying Circuit Devices (AREA)

Abstract

The invention relates to a method for effecting an electronic drive control of a drive coil of a protection system using an electronic device which comprises a microcontroller. The aim of the invention is to increase the serviceable life of a protection system. To this end, the invention uses a randomly selected and constantly changing delay time (tx) that occurs after a time (t2, t3) at which the supply voltage is established on the electronic device.

Description

Verfahren zur elektronischen AntriebssteuerungElectronic drive control method
Die Erfindung betrifft ein Verfahren zur elektronischen Antriebssteuerung nach dem Oberbegriff des Anspruches 1.The invention relates to a method for electronic drive control according to the preamble of claim 1.
Aus der EP 0 789 378 A1 ist eine elektronische Antriebsteuerung für ein Magnetantrieb bekannt.An electronic drive control for a magnetic drive is known from EP 0 789 378 A1.
Wenn die Steuerspannung eines Schützes von einer der drei Phasen abgeleitet wird, kann es zu Synchronisationseffekten zwischen dem Schließ- bzw. Öffnungswinkel der Hauptkontakte im Lastkreis und der AC Steuerspannung führen.If the control voltage of a contactor is derived from one of the three phases, it can lead to synchronization effects between the closing or opening angle of the main contacts in the load circuit and the AC control voltage.
Dies liegt daran, daß ein gewisser Spannungsaufbau der Versorgungsspannung für die Elektronik erfolgen muß.This is because a certain voltage build-up of the supply voltage for the electronics must take place.
Wird die Steuerspannung im Spannungsnullpunkt zugeschaltet, so baut sich die Versorgungsspannung nicht sofort auf, sondern erst zu einem späterem Zeitpunkt. Im Bereich dieses Zeitpunktes erfolgt eine unerwünschte Synchronisation, die zur Folge hat, daß immer eines der drei Schaltkontakte des Schützes einem höheren Verschleiß unterliegt. Das heißt, daß ein Kontakt einen Einschaltpunkt aufweist, bei dem die Spannungshöhe unabhängig vom Zeitpunkt des Steuersignals annähernd gleich ist. Da die Lebensdauer des Schützes von der Lebensdauer des am meist abgebranntesten Kontaktes abhängt, tritt durch die Synchronisation eine Verkürzung der Lebensdauer des Gesamtgerätes ein. Aufgabe der Erfindung ist es, ein Verfahren nach dem Oberbegriff des Anspruches 1 zu schaffen, bei dem die Lebensdauer eines Schützes erhöht wird.If the control voltage is switched on at zero voltage, the supply voltage does not build up immediately, but only at a later point in time. In the area of this time, an undesired synchronization takes place, which means that one of the three switching contacts of the contactor is always subject to greater wear. This means that a contact has a switch-on point at which the voltage level is approximately the same regardless of the timing of the control signal. Since the service life of the contactor depends on the service life of the most burned-off contact, synchronization reduces the service life of the entire device. The object of the invention is to provide a method according to the preamble of claim 1, in which the life of a contactor is increased.
Die Aufgabe der Erfindung wird durch die kennzeichnenden Merkmale der unabhängigen Ansprüche gelöst, während in den Unteransprüchen besonders vorteilhafte Weiterbildungen der Erfindung gekennzeichnet sind.The object of the invention is achieved by the characterizing features of the independent claims, while particularly advantageous developments of the invention are characterized in the subclaims.
Durch die Erfindung wird ein ungleichmäßiger Abbrand der Schaltkontakte verhindert und somit die Lebensdauer des Schützes erhöht.The invention prevents uneven erosion of the switching contacts and thus increases the contactor's service life.
Anhand der Zeichnung, in der ein Ausführungsbeispiel dargestellt ist, sollen die Erfindung, weitere Ausgestaltungen und Verbesserungen der Erfindung und weitere Vorteile näher beschrieben und erläutert werden.The invention, further refinements and improvements of the invention and further advantages are to be described and explained in more detail with reference to the drawing, in which an exemplary embodiment is shown.
Es zeigt:It shows:
Fig. 1 ein Zeitdiagramm,1 is a timing diagram,
Fig. 2 ein Diagramm ohne Verzögerungszeit,2 shows a diagram without delay time,
Fig. 3 eine Prinzipdarstellung,3 is a schematic diagram,
Fig. 4 ein erstes Flußdiagramm undFig. 4 is a first flow chart and
Fig. 5 ein weiteres Flußdiagramm. Die Fig. 1 zeigt ein Zeitdiagramm, bei dem in einer unteren Kurve die gleichgerichtete Versorgungsspannung dargestellt ist, wobei die Versorgungsspannung eine Wechselspannung ist.5 shows a further flow chart. 1 shows a time diagram in which the rectified supply voltage is shown in a lower curve, the supply voltage being an AC voltage.
Nach dem Einschalten der Versorgungsspannung zum Zeitpunkt t0, der im Spannungsnulldurchgang gelegt ist, baut sich die Spannung der Elektronik erst nach 3 bis 5 ms auf. Nach diesem Spannungsaufbau, erfolgt ein Resetsignal für einen Microkontroller. Das Programm wird gestartet. Nach diesem Zeitpunkt t, erfolgt eine Erkennung, in welchem Zustand das Schütz betrieben wird. Es wird überprüft um welche Ansteuerart es sich handelt. Die Ermittlung bezieht sich auf den konventionellen Betrieb, SPS-Betrieb oder leistungsarmen Betrieb. Diese Erkennung des Eingangs dauert etwa 5 ms, wobei das Ende der Erkennung mit t2 gekennzeichnet ist. Steht ein Pegel an, dann wird der konventionelle Betrieb erkannt.After switching on the supply voltage at time t 0 , which is in the zero voltage crossing, the voltage of the electronics only builds up after 3 to 5 ms. After this voltage build-up, a reset signal for a microcontroller is issued. The program is started. After this point in time t, the state in which the contactor is operated is recognized. It is checked what type of control it is. The determination relates to conventional operation, PLC operation or low-power operation. This detection of the input takes about 5 ms, the end of the detection being identified by t 2 . If a level is present, then conventional operation is recognized.
Nach diesen Zeitpunkt ist, um Synchronisationseffekte zu vermeiden, eine zufällig bestimmte Verzögerungszeit . vorgesehen, die zwischen Null und der halbenAfter this point in time, in order to avoid synchronization effects, there is a randomly determined delay time. provided between zero and half
Periodendauer der Steuerspannung liegt.Period of the control voltage is.
Erst nach dieser Verzögerungszeit, wobei der Zeitpunkt mit t3 gekennzeichnet ist, wird die Versorgungsspannung gemessen, wobei die Versorgungsspannung sowohl eineThe supply voltage is measured only after this delay time, the point in time being identified by t 3 , the supply voltage being both a
DC- als auch eine AC-Spannung sein kann. Dabei wird überprüft um welcheCan be DC as well as AC voltage. It is checked which ones
Versorgungsspannung es sich handelt (AC oder DC). Gleichzeitig wird die Höhe der anliegenden Spannung ermittelt.Supply voltage is (AC or DC). At the same time, the level of the applied voltage is determined.
Weiterhin wird nach t3 geprüft, ob die Versorgungsspannung innerhalb eines vorgegebenen Spannungsfensters Umin, Umax liegt, d.h. ob der ermittelte Wert im zulässigen Bereich liegt.Furthermore, it is checked after t 3 whether the supply voltage is within a predetermined voltage window U min , U max , ie whether the value determined is in the permissible range.
Diese Vorgänge dauern etwa 12,5 ms an, wobei der Zeitpunkt t4, an dem derThese processes last for approximately 12.5 ms, the time t 4 at which the
Schützantrieb aktiviert wird bzw. der Anzugvorgang eingeleitet wird, durch dieContactor drive is activated or the tightening process is initiated by the
Verzögerungszeit tx auf jedem beliebigen Punkt der Sinuskurve der Versorgungsspannung liegen kann. Die Zeit des Anzugvorgangs ist je nach Schutztyp verschieden.Delay time t x at any point on the sine curve Supply voltage can be. The time of the tightening process varies depending on the type of protection.
Je nach Schütztyp erfolgt der Anzug nach 50 bis 100 ms.Depending on the type of contactor, the tightening takes place after 50 to 100 ms.
Der Schaltpunkt t5 der Kontakte verteilt sich auch für die anderen Phasen nach dem Zufallsprinzip, was eine gleichmäßige Beanspruchung der Schaltkontakte bewirkt.The switching point t 5 of the contacts is also randomly distributed for the other phases, which causes the switching contacts to be evenly stressed.
Der unerwünschte Synchronisationseffekt wird anhand der Fig. 2 näher erläutert.The undesired synchronization effect is explained in more detail with reference to FIG. 2.
Die gestrichelten Linien zeigen verschiedene Einschaltpunkte, denen unterschiedlicheThe dashed lines show different switch-on points, different ones
Spannungswerte zugeordnet sein können. Da die Spannung zum Starten desVoltage values can be assigned. Because the voltage to start the
Microkontrollers erst aufgebaut werden muß, liegt das Resetsignal nahezu unabhängig vom Einschaltzeitpunkt stets auf dem gleichen Punkt der Kurve, so daß die Einschaltzeitpunkte praktisch auf den gleichen Resetzeitpunkt synchronisiert werden.Microcontroller must first be set up, the reset signal is almost independent of the switch-on time always on the same point on the curve, so that the switch-on times are practically synchronized to the same reset time.
Wird die Steuerspannung z.B. im Spannungsnullzeitpunkt zugeschaltet, so baut sich die Versorgungsspannung für die Elektronik nicht sofort auf.If the control voltage e.g. switched on at zero voltage, the supply voltage for the electronics does not build up immediately.
Durch das erläuterte Verfahren werden unerwünschte Synchronisationseffekte zwischen dem Schließwinkel bzw. Öffnungswinkel der Hauptkontakte im Lastkreis vermieden.The method explained avoids undesirable synchronization effects between the closing angle or opening angle of the main contacts in the load circuit.
Zur Realisierung eines Zeitgliedes mit einer variabel, zufällig eingestellten Zeit wird ein Zufallsgenerator benötigt. Der vom Zufallsgenerator gelieferte Wert wird anschließend so bearbeitet, daß sich mit der anschließenden Bearbeitung des Wertes eine Zeit von Null bis maximal der halben Periodendauer der Steuerspannung ergibt.A random generator is required to implement a timer with a variable, randomly set time. The value supplied by the random number generator is then processed in such a way that the subsequent processing of the value results in a time from zero to a maximum of half the period of the control voltage.
Einen zufälligen Wert kann man durch zwei Möglichkeiten erhalten. Fig. 3 zeigt eine Prinzipdarstellung. Bei der ersten Möglichkeit wird ein Wert in einer RAM Speicherstelle im Microkontroller ausgelesen, wobei der Inhalt dieser Zelle nach Spannungszuschaltung nicht definiert ist.A random value can be obtained in two ways. Fig. 3 shows a schematic diagram. In the first possibility, a value is read out in a RAM memory location in the microcontroller, the content of this cell being undefined after the voltage has been switched on.
Die Fig. 4 zeigt das zugehörigen Ablaufdiagramm zur Realisierung mit einem RAM.4 shows the associated flowchart for implementation with a RAM.
Bei der zweiten Möglichkeit erhält man aus einer Speicherzelle 1 eines EEPROM einen Wert, der entsprechend manipuliert wird. Der alte Wert wird zur Ermittlung des neuen Wertes herangezogen. Der alte Wert wird dann durch den neuen Wert imIn the second possibility, a value is obtained from a memory cell 1 of an EEPROM, which is manipulated accordingly. The old value is used to determine the new value. The old value is then replaced by the new value in
EEPROM ersetzt.EEPROM replaced.
Anschließend wird der manipulierte Wert in ein Register 2 geschrieben. Der Timer wird anschließend gestartet. Wenn der Timer den Wert Null erreicht, dann entsteht einThe manipulated value is then written into register 2. The timer is then started. When the timer reaches zero, an arises
Timer underflow, der an die CPU weitergegeben wird, und das Programm wird fortgefahren.Timer underflow, which is passed on to the CPU, and the program continues.
Die Fig. 5 zeigt das entsprechende Flußdiagramm.5 shows the corresponding flow chart.
Durch diese zusätzliche Zeitschleife werden die Schließ- und Öffnungswinkel der Hauptkontakte gegenüber der Steuerspannung nicht synchronisiert. This additional time loop means that the closing and opening angles of the main contacts are not synchronized with the control voltage.

Claims

Patentansprüche claims
1. Verfahren zur elektronischen Antriebssteuerung einer Antriebspule eines Schützes mit Hauptkontakten für Laststrom und einer Elektronik, die einen Microkontroller aufweist, dadurch gekennzeichnet, daß eine per Zufall ausgewählte und ständig sich ändernde Verzögerungszeit (t vorhanden ist, die nach einem Zeitpunkt (t1 12) liegt, an dem die Versorgungsspannung an der Elektronik aufgebaut ist.1. A method for electronic drive control of a drive coil of a contactor with main contacts for load current and electronics that has a microcontroller, characterized in that a randomly selected and constantly changing delay time (t is present, which after a time (t 1 1 2 ) at which the supply voltage is built up on the electronics.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß die Verzögerungszeit (t zwischen Null und der halben Periodendauer der Steuerspannung liegt.2. The method according to claim 1, characterized in that the delay time (t is between zero and half the period of the control voltage.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Verzögerungszeit (tj nach dem Zeitpunkt (t, t2), an dem die Versorgungsspannung an der Elektronik aufgebaut ist und vor einem Zeitpunkt3. The method according to claim 1 or 2, characterized in that the delay time (tj after the time (t, t 2 ) at which the supply voltage is built up on the electronics and before a time
(t3), an dem die Versorgungsspannung gemessen ist, liegt.(t 3 ) on which the supply voltage is measured.
4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zu einem vorgeordneten Zeitpunkt (t,), eine Erkennung, in welcher Ansteuerart der Schütz betrieben wird, erfolgt, wobei die Verzögerungszeit (tx) erst nach einem Zeitpunkt (t2) liegt, an dem die Erkennung beendet ist. 4. The method according to any one of the preceding claims, characterized in that at an upstream time (t,), a detection of the type of actuation of the contactor is carried out, the delay time (t x ) only after a time (t 2 ) where the detection is finished.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß sich die Erkennung auf den konventionellen Betrieb, SPS-Betrieb oder leistungsarmen Betrieb bezieht.5. The method according to claim 4, characterized in that the detection relates to conventional operation, PLC operation or low-power operation.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Erkennung etwa 5 ms dauert.6. The method according to claim 5, characterized in that the detection takes about 5 ms.
7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß nach der Verzögerungszeit (t zu einem nachfolgenden Zeitpunkt (t3) die Versorgungsspannung hinsichtlich AC- oder DC-Betrieb überprüft wird7. The method according to any one of the preceding claims, characterized in that after the delay time (t at a subsequent time (t 3 ), the supply voltage is checked with regard to AC or DC operation
8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß nach der Verzögerungszeit (t zu einem nachfolgenden Zeitpunkt (t3) geprüft wird, ob die Versorgungsspannung innerhalb eines vorgegebenen Spannungsfensters (Umin, Umax ) liegt.8. The method according to any one of the preceding claims, characterized in that after the delay time (t at a subsequent time (t 3 ) is checked whether the supply voltage is within a predetermined voltage window (U min , U max ).
9. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zu einem späteren Zeitpunkt (t4 ), der nach etwa10-15ms, vorzugsweise 12,5 ms liegt, der Schützantrieb aktiviert wird und der Anzugvorgang eingeleitet wird.9. The method according to any one of the preceding claims, characterized in that at a later time (t 4 ), which lies after about 10-15 ms, preferably 12.5 ms, the contactor drive is activated and the pulling-in process is initiated.
10. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein als Zufallsgenerator arbeitendes Zeitglied zur Realisierung der Verzögerungszeit (t vorhanden ist, wobei der vom Zufallsgenerator gelieferte Wert anschließend so bearbeitet wird, daß sich mit der anschließenden Bearbeitung des Wertes eine Zeit von Null bis maximal der halben Periodendauer der Steuerspannung ergibt. 10. The method according to any one of the preceding claims, characterized in that a timer operating as a random generator for realizing the delay time (t is present, the value supplied by the random generator is then processed so that with the subsequent processing of the value a time of zero up to a maximum of half the period of the control voltage.
11. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein der Verzögerungszeit (tx) zuzuordnender Wert in einer RAM-Speicherstelle (1 ) im Microkontroller ausgelesen wird, wobei der Inhalt dieser Zelle nach Spannungszuschaltung nicht definiert ist.11. The method according to any one of the preceding claims, characterized in that a value to be assigned to the delay time (t x ) is read out in a RAM memory location (1) in the microcontroller, the content of this cell being undefined after the voltage supply.
12. Verfahren nach Anspruch 11 , dadurch gekennzeichnet, daß anschließend der manipulierte Wert in ein Register (2) als Timer geschrieben wird, daß der Timer anschließend gestartet wird und daß, wenn der Timer den Wert Null erreicht, ein Timer-underflow entsteht, der an eine CPU weitergegeben wird, wobei dann ein Programm fortgefahren wird.12. The method according to claim 11, characterized in that the manipulated value is then written into a register (2) as a timer, that the timer is then started and that when the timer reaches the value zero, a timer underflow occurs, which is passed on to a CPU, in which case a program is continued.
13. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß aus einer Speicherzelle (1 ) eines EEPROM ein Wert eingelesen wird, der manipuliert wird, wobei der alte Wert zur Ermittlung des neuen Wertes herangezogen wird und der alte Wert dann durch den neuen Wert im EEPROM ersetzt wird.13. The method according to any one of the preceding claims, characterized in that a value is read from a memory cell (1) of an EEPROM, which is manipulated, the old value being used to determine the new value and the old value then by the new value is replaced in the EEPROM.
14. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Versorgungsspannung gemessen und geprüft wird. 14. The method according to any one of the preceding claims, characterized in that the supply voltage is measured and checked.
EP00951390A 1999-07-26 2000-07-15 Method for effecting an electronic drive control Expired - Lifetime EP1198808B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19935044 1999-07-26
DE19935044A DE19935044A1 (en) 1999-07-26 1999-07-26 Electronic drive control method
PCT/EP2000/006774 WO2001008181A1 (en) 1999-07-26 2000-07-15 Method for effecting an electronic drive control

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EP1198808A1 true EP1198808A1 (en) 2002-04-24
EP1198808B1 EP1198808B1 (en) 2003-10-01

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US (1) US6671157B1 (en)
EP (1) EP1198808B1 (en)
JP (1) JP2003505840A (en)
AT (1) ATE251332T1 (en)
AU (1) AU6434700A (en)
DE (2) DE19935044A1 (en)
ES (1) ES2208389T3 (en)
WO (1) WO2001008181A1 (en)

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See references of WO0108181A1 *

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US6671157B1 (en) 2003-12-30
ATE251332T1 (en) 2003-10-15
DE50003920D1 (en) 2003-11-06
EP1198808B1 (en) 2003-10-01
AU6434700A (en) 2001-02-13
JP2003505840A (en) 2003-02-12
DE19935044A1 (en) 2001-02-01
ES2208389T3 (en) 2004-06-16
WO2001008181A1 (en) 2001-02-01

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