EP0812461B1 - Dispositif servant a la commande d'au moins un consommateur electromagnetique - Google Patents

Dispositif servant a la commande d'au moins un consommateur electromagnetique Download PDF

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Publication number
EP0812461B1
EP0812461B1 EP96901227A EP96901227A EP0812461B1 EP 0812461 B1 EP0812461 B1 EP 0812461B1 EP 96901227 A EP96901227 A EP 96901227A EP 96901227 A EP96901227 A EP 96901227A EP 0812461 B1 EP0812461 B1 EP 0812461B1
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EP
European Patent Office
Prior art keywords
current
phase
switching means
switch
consumer
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
Application number
EP96901227A
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German (de)
English (en)
Other versions
EP0812461A1 (fr
Inventor
Klaus Dressler
Rainer Burkel
Engelbert Tillhon
Andreas Werner
Wilhelm Eyberg
Andreas Koch
Udo Schulz
Wolfgang Krampe
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Robert Bosch GmbH
Original Assignee
Robert Bosch 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
Priority claimed from DE19539071A external-priority patent/DE19539071A1/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0812461A1 publication Critical patent/EP0812461A1/fr
Application granted granted Critical
Publication of EP0812461B1 publication Critical patent/EP0812461B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • 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
    • 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
    • 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
    • F02D2041/2017—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
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
    • 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
    • F02D2041/2075—Type of transistors or particular use thereof
    • 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
    • H01F2007/1822—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 using a capacitor to produce a boost voltage

Definitions

  • the invention relates at least to a device for actuation of an electromagnetic consumer according to Preamble of claim 1.
  • a device for controlling an electromagnetic Consumer is, for example, from the unpublished DE-OS 44 13 240 known. With this device the energy released when switching off in a capacitor saved. The transition from a holding current energy released on current 0 into a capacitor reloaded.
  • WO-A-89 03579 describes a circuit arrangement for Supply of an electromagnetic consumer with a Supply voltage and one in series to the consumer arranged driver circuit by an erase circuit can be bridged to switch off the consumer.
  • the quenching circuit is an energy storage device in the form of a capacitor to absorb the energy stored in the consumer intended. The one released when the consumer is switched off Energy is always transferred to the capacitor. A Free running during a current control is with this device not feasible. If the switching device is defective the consumer is constantly energized.
  • US-A-4,862,866 shows a device around a capacitor to charge to an increased tension. For this, a additional coil energized. The one released when switching off Energy is used to charge the capacitor. This circuit is very expensive because in addition to the additional coil further switching means are required.
  • the invention has for its object in a device to control an electromagnetic consumer to provide the simplest possible set-up, which accelerates the start-up process and the total energy consumption is minimized.
  • the arrangement according to the invention with the features of the independent Claims has the advantage that the transition released from the pull-in current to the holding current Energy can be recovered.
  • a particularly beneficial one Embodiment it is possible that with the same Power amplifier two consumers at the same time in different Be controlled in a way. This means that they overlap in time Injections possible.
  • FIG. 1 shows a first circuit arrangement of the invention Device
  • Figure 2 shows a second circuit arrangement
  • FIG. 3 different plots plotted over time Signals.
  • the device according to the invention is preferred for internal combustion engines, especially with self-igniting internal combustion engines, used.
  • This electromagnetic Valves are referred to below as consumers designated.
  • the invention is not limited to this application, it can be used wherever Fast switching electromagnetic consumers are required become.
  • Figure 1 are the most important elements of the invention Facility shown.
  • it is a four-cylinder internal combustion engine. Every consumer has an injection valve and a cylinder of the internal combustion engine for each injection valve assigned. With higher numbers of cylinders of the internal combustion engine are accordingly more valves, switching means and To provide diodes.
  • connection of the consumers 100 to 103 are over a switching means 115 and a diode 110 with a voltage supply 105 in connection.
  • the diode 110 is arranged so that it with its anode the positive pole and with its cathode with the switching means 115 communicates.
  • the switching means 115 is concerned is preferably a field effect transistor.
  • the second connection for consumers 100 to 103 stands above a second switching means 120, 121, 122 and 123 in connection with a resistance means 125.
  • a second switching means 120, 121, 122 and 123 are also preferably around field effect transistors.
  • the switching means 120 through 123 are used as the lowside switch and the switching means 115 referred to as highside switch.
  • the second connection of the Resistance means 125 is connected to the second terminal Power supply in connection.
  • Each consumer 100 to 103 is a diode 130, 131, 132 and 133 assigned.
  • the anode connection of the diodes is in each case with the connection point between consumer and Lowside switch in contact.
  • the cathode connection is with a capacitor 145 and a further switching means 140 in connection.
  • the second connection of the switching means 140 stands with the first connections of consumers 100 to 103 in contact.
  • Switching means 140 is also involved preferably around a field effect transistor. This Switching means 140 is also referred to as a booster switch.
  • the second connection of the capacitor 145 is also available the second connection of the supply voltage 105 in connection.
  • the highside switch 115 is operated by a control unit 160 with a control signal AH.
  • the switching device 120 is sent by the control unit 160 with a control signal AL1, the switching means 121 with a drive signal AL2, the Switching means 122 with a control signal AL3, the switching means 123 with a control signal AL4 and the switching means 140 applied with a control signal AC.
  • Diode 150 switched between the second connection of the voltage supply 105 and the connection point between the switching means 115 and the first connections of consumers 100 to 103 is one Diode 150 switched.
  • the anode of the diode is included connected to the second connection of the voltage supply 105.
  • a current measurement is over the current measuring resistor 125 only possible if one of the Switching means 120 to 123 is closed.
  • the current measuring resistor is also arranged elsewhere become.
  • the second connection of the capacitor 145 with the connection point between the current measuring means 125 and the switching means 120 to 123 are connected.
  • a current measurement is also in the blocked state Lowside switch possible.
  • the current measuring means between the power supply and the highside switch or arranged between the highside switch and the consumers be.
  • FIG. A corresponding device is shown in FIG. where consumers 100 to 103 are divided into two groups are.
  • the consumers 100 and 101 form a first one Group, and consumers 102 and 103 form a second Group of consumers. Consumers become the individual Groups assigned so that consumers who are under certain operating conditions are to be controlled simultaneously, be assigned to different groups.
  • FIG. 1 Elements already described in FIG. 1 are shown in FIG corresponding reference numerals.
  • a high-side switch 115 and 116 are provided.
  • the Diode 111 corresponds to diode 110 of the first group.
  • Corresponding the booster transistor 140 is also double to interpret.
  • the booster transistor of the second group is designated 141. Accordingly, the capacitor 145 in the second group designated 146.
  • the highside switch 115 of the first group becomes with the signal AH1 and the highside switch 116 of the second Group applied with AH2.
  • the booster switch 140 of the first group is with the signal AC1 and Booster switch 141 of the second group comes with the signal AC2 applied.
  • the resistor 125 is also corresponding double interpretation, this is in the second group with Designated 126.
  • phase 0 before triggering the consumer the output stage is switched off.
  • the control signals AC, AH and AL are at low potential. This means, that the highside switch 115, the lowside switch 120 to 123 and the booster switch 140 block the current flow. By no electricity flows to the consumers.
  • the capacitor 145 is charged to its maximum voltage UC. This takes for example a value of approx. 80 volts, whereas the Voltage of the power supply assumes a value of approx. 12 V.
  • the fuel should measure.
  • the Signal AL assumes a high level.
  • the line AC issued a high signal that the switch 140 controlled.
  • the highside switch 115 is not activated, this continues to block.
  • This control of Switching means causes the capacitor 145 through the Booster switch 140, the corresponding consumer, the Lowside switch assigned to consumers and the current measuring means 125 a current flows.
  • the Current I very much due to the high voltage at the consumer quickly.
  • Phase 1 ends when the capacitor 145 applied voltage falls below a certain value U2.
  • the inrush current from the highside switch 115 taken over and the booster deactivated In the second phase, which is referred to as starting current control the inrush current from the highside switch 115 taken over and the booster deactivated.
  • the control signal for the booster switch 140 In the second phase the control signal for the booster switch 140 is withdrawn, so that switch 140 locks.
  • the control signals AH and AL for the highside switch 115 and the consumer assigned lowside switches are at high levels set so that these switches release the current flow. Consequently a current flows from the voltage supply 105 via the Diode 110, the highside switch 115, the consumer, the corresponding low-side switch, the current measuring resistor 125 back to voltage source 105.
  • the current measuring resistor 125 By touching the high-side switch can the current by means of the current measuring resistor 125 is recorded to a predeterminable value for the starting current IA can be regulated. That is, when reached of the target current IA for the starting current is the Highside switch 115 controlled so that it blocks. When falling short another
  • the third phase also known as the first quick erase the control signal for the corresponding Lowside switch withdrawn.
  • This causes a Electricity from the respective consumer through the consumer associated diode 130 to 133 in capacitor 145 flows and the energy stored in the consumer in the Capacitor 145 is charged.
  • the highside switch 115 is controlled in the illustrated embodiment so that it stays closed.
  • the sink In this phase the sinks Current from the starting current IA to the holding current IH. At the same time the voltage across capacitor 145 rises, to a value U3, but which is significantly below the value U1 lies.
  • the third phase ends when the setpoint IH for the holding current is reached.
  • the transition from the pull-in current IA on the holding current IH is released energy stored in the capacitor. It is particularly advantageous here that the transition from the pull-in current to the holding current done quickly due to the quick deletion.
  • the third phase is followed by the fourth phase, the is also referred to as holding current control.
  • the control signal remains for the Lowside switch at its high level, that is Lowside switches assigned to consumers remain closed.
  • the high-side switch 115 By opening and closing the high-side switch 115 the current that flows through the consumer to the setpoint adjusted for the holding current.
  • locked Highside switch 115 acts as a freewheeling circuit. The current flows from the consumer through the lowside switch, the resistor 125 and the free-wheeling diode 150.
  • Phase 4 has ended, when the injection process is completed.
  • the corresponding low-side switch is switched off and the highside switch 115 is turned on.
  • this Phase falls the current that flows through the consumer, also quickly decreases to zero.
  • the voltage U applied to the capacitor 145 by one smaller value than in the third phase.
  • the setpoint for the current I goes from a high to a low value.
  • the energy released is transferred to the capacitor 145, 146 reloaded.
  • Quick delete This causes the current to flow quickly new setpoint reached.
  • the power amplifier is inactive, that is, there is no fuel metering.
  • phase 8 in which all control signals withdrawn and all switches in their locked state to be brought. This phase corresponds to phase 0.
  • the Capacitor 145 are driven before the next valve can be. If the switch-off points and the switch-on point two valves in quick succession, it is not possible to charge the capacitor 145.
  • the device according to the invention was based on the example of a Internal combustion engine shown with four cylinders.
  • the method is also on internal combustion engines with others Number of cylinders transferable. There is a corresponding number for this of consumers, switching devices and other elements to provide. It can also be provided that the consumer is divided into a larger number of groups. This is particularly useful with higher numbers of cylinders.
  • the Current control phase a transition from a high current level to lower current level, with part of the stored electrical energy is used to partially remove the capacitor charge.
  • the capacitor is charged further on Actuation end when the load current is quickly extinguished. Enough then the capacitor is charged for switching on again not yet off, is switched on and off periodically Load current (night clocking) between two injection processes and Another electrical storage Voltage increase reached.
  • High engine speeds mean shorter periods of time can be used to increase the voltage by means of night clocking can.
  • the step up is in time not possible between two injections, so the Capacitor not charged to the required voltage can be.
  • another Embodiment suggested that the voltage step-up is already carried out during the current control and the Capacitor completely again during activation is charged. This allows night clocking in the Control gap is eliminated. Furthermore, the risk is reduced that there is an undesirable injection because the Consumer not energized between the two injection processes becomes.
  • phase 0 that before de Control of the consumer is the final stage switched off.
  • the control signals AC, AH, AL and the signal AS are at low potential. This means that the High-side switches, 115 the low-side switches 120 - 123 and the Booster switch 140 block the flow of current. By consumers no electricity flows.
  • the capacitor 145 is at its maximum Voltage U10 charged. This takes a value of approx. 80 volts on, whereas the voltage supply values of approx. 12 volts assumes.
  • the first phase at the start of activation corresponds to the first Phase of the procedure according to FIG. 3.
  • the signal AS rises to its high level. This indicates that the voltage drop across the capacitor is less than one predefined threshold value US.
  • the 2nd phase which is also called pull-in current control the inrush current from the high-side switch 115 taken over and the booster deactivated.
  • the control signal AT for the booster switch 140 is withdrawn so that the switch 140 locks.
  • the Control signals AH and AL for the high-side switch 115 and the Low-side switches assigned to consumers take a high one Level on so that these switches enable current flow. Consequently a current flows from the voltage supply 105 via the diode 110, the high-side switch 115, the consumer, the corresponding low-side switch, the current measuring resistor 125 back to voltage source 105.
  • phase 2 according to FIG. 3 contacting the Lowside switch the current, which by means of the Current measuring resistor 125 is detected to a predetermined value regulated for the pull-in current IA. That means when the The target current IA for the pull-in current is the low-side switch 120 controlled to 125 so that it locks. When falling below one another threshold, it is released again. This has to Consequence that with open low side switch 120 to 125 on Electricity from the respective consumer through the consumer associated diode 130 to 133 flows in the capacitor 145 and the energy stored in the consumer in the capacitor 145 is reloaded. At the same time, the voltage U rises Capacitor 145 is present.
  • the second phase ends when the control unit 160 ends the Recognizes the tightening phase. This can e.g. to be the case if one Switching point detection recognizes that the solenoid valve armature has reached its new end position.
  • the control signal for the corresponding Low side switch withdrawn.
  • This causes a current from the respective consumer through the to the consumer associated diode 130-133 flows into capacitor 145.
  • the in Energy stored in the consumer is transferred to the capacitor 145 reloaded.
  • the current drops from the pull-in current IA on the holding current IH.
  • the voltage U rises, which is present at capacitor 145.
  • the third phase is over when the setpoint for the holding current is reached. The at Transition from the pull-in current to the holding current is stored in the capacitor.
  • the fourth phase is followed by the fourth phase, which too is referred to as holding current control.
  • the second phase remains the control signal for the High-side switch at its high level, d. H. of the The high-side switch remains closed.
  • opening and closing of the low-side switch is the current flowing through the consumer flows to the setpoint for the holding current.
  • the current flows from the respective Consumer through the diode 130-133 assigned to the consumer into the capacitor 145. This will result in the consumer stored energy transferred to the capacitor.
  • the signal AS changes to low potential.
  • the first part 4a is thus the fourth phase ended. From this point on, the Current control no longer using the low-side switch, but instead using the high-side switch. That means the lowside switch is constantly in his managerial position and that High-side switch switches between its locked and its open position. With highside switch 115 locked acts as a free wheel. The current flows through the consumer the low side switch, resistor 125 and the free wheeling diode 150.
  • the fourth phase is finished when the injection process is completed.
  • the subsequent fifth phase corresponds to the fifth phase the procedure according to FIG. 3. Phases six and seven, 3 are not in this type of control required.
  • the output stage arrangement works as a current regulating Boost converter.
  • the high-side switch is in this operating state switched through continuously.
  • the current regulation takes place through the lowside switch assigned to the individual consumer.
  • the periodically on and for current control is turned off.
  • the voltage U falling across capacitor 145 has one predetermined value US is reached in another Operating mode switched. In this operating mode no further charging of the capacitor.
  • the current regulation takes place correspondingly as in the exemplary embodiment in FIG. 3 using the high-side switch.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (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)

Abstract

Ce dispositif, qui sert à la commande d'au moins un consommateur électromagnétique, comprend un premier organe commutateur (115, 116) monté entre une première connexion à une tension d'alimentation et une première connexion à au moins un consommateur (100, 101, 102, 103) et des deuxièmes organes commutateurs (120, 121, 122, 123) montés entre une première connexion à un consommateur associé (100, 101, 102, 103) et la deuxième connexion à l'alimentation en tension. Lorsque l'on passe d'une première valeur plus élevée de courant (IA) à une deuxième valeur moins élevée de courant (IH) l'énergie libérée est stockée dans un élément accumulateur (145, 146).

Claims (8)

  1. Dispositif servant à la commande d'au moins un consommateur électromagnétique, en particulier d'une électrovanne servant à commander le dosage du carburant dans un moteur à combustion interne, avec un premier moyen de commande (115, 116) qui est disposé entre un premier raccordement à une tension d'alimentation et un premier raccordement d'au moins un consommateur (100, 101, 102, 103), avec des seconds moyens de commande (120, 121, 122, 123) qui sont disposés entre un deuxième raccordement d'un consommateur associé (100, 101, 102, 103) et le deuxième raccordement de la source d'alimentation en tension,
    caractérisé en ce que
    des moyens sont prévus qui commandent les seconds moyens de branchement (120, 121, 122, 123) d'une manière telle qu'au moins l'énergie qui est libérée lors du passage d'une valeur de l'intensité d'armement (IA) à une valeur de l'intensité de maintien (IH) puisse être stockée dans un accumulateur (145, 146) et
    des moyens sont prévus qui commandent les premiers moyens de branchement (115, 116) d'une manière telle que lors d'une phase, pendant laquelle on peut régler l'intensité, sur une valeur de consigne, une diode de roue libre (150, 151) est opérationnelle, diode qui est branchée entre le premier raccordement du consommateur et le deuxième raccordement de la source d'alimentation en tension.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    dans une première phase de la commande le premier raccordement du consommateur peut être relié au moyen d'un troisième moyen de branchement (140, 141) à l'accumulateur d'énergie (145, 146).
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    l'énergie qui est libérée lors de l'ouverture du deuxième moyen de branchement peut être accumulée dans l'accumulateur.
  4. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'énergie qui est libérée lors du passage de la valeur de l'intensité de maintien (IA) à la valeur zéro peut être stockée dans l'accumulateur (145).
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé en ce que
    dans une phase, dans laquelle on peut régler l'intensité sur une valeur de consigne, on peut stocker l'énergie libérée dans l'accumulateur (145).
  6. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    les seconds moyens de branchement sont commandés dans une phase qui fait suite à la commande de manière brève telle que le consommateur ne réagisse pas et
    l'énergie qui est libérée lors de l'ouverture du deuxième moyen de branchement puisse être stockée dans l'accumulateur.
  7. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'accumulateur est branché en parallèle aux seconds moyens de branchement.
  8. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    les consommateurs peuvent être répartis en au moins deux groupes, auxquels est respectivement associé un premier moyen de branchement (115, 116), un troisième moyen de branchement (140, 141) et/ou un accumulateur d'énergie (145, 146).
EP96901227A 1995-03-02 1996-02-02 Dispositif servant a la commande d'au moins un consommateur electromagnetique Expired - Lifetime EP0812461B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19507222 1995-03-02
DE19507222 1995-03-02
DE19539071 1995-10-20
DE19539071A DE19539071A1 (de) 1995-03-02 1995-10-20 Vorrichtung zur Ansteuerung wenigstens eines elektromagnetischen Verbrauchers
PCT/DE1996/000160 WO1996027198A1 (fr) 1995-03-02 1996-02-02 Dispositif servant a la commande d'au moins un consommateur electromagnetique

Publications (2)

Publication Number Publication Date
EP0812461A1 EP0812461A1 (fr) 1997-12-17
EP0812461B1 true EP0812461B1 (fr) 1999-05-06

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Application Number Title Priority Date Filing Date
EP96901227A Expired - Lifetime EP0812461B1 (fr) 1995-03-02 1996-02-02 Dispositif servant a la commande d'au moins un consommateur electromagnetique

Country Status (4)

Country Link
US (1) US5936827A (fr)
EP (1) EP0812461B1 (fr)
JP (1) JP3955622B2 (fr)
WO (1) WO1996027198A1 (fr)

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GB9603181D0 (en) * 1996-02-15 1996-04-17 Motorola Ltd Switching circuit for an inductive load
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EP0812461A1 (fr) 1997-12-17
WO1996027198A1 (fr) 1996-09-06
JP3955622B2 (ja) 2007-08-08
US5936827A (en) 1999-08-10
JPH11501768A (ja) 1999-02-09

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