EP4056944B1 - Allumage paramétrique d'un dispositif électro-explosif au moyen d'un contrôleur mli - Google Patents

Allumage paramétrique d'un dispositif électro-explosif au moyen d'un contrôleur mli Download PDF

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Publication number
EP4056944B1
EP4056944B1 EP22160277.4A EP22160277A EP4056944B1 EP 4056944 B1 EP4056944 B1 EP 4056944B1 EP 22160277 A EP22160277 A EP 22160277A EP 4056944 B1 EP4056944 B1 EP 4056944B1
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EP
European Patent Office
Prior art keywords
ignition
energy
bridge
pwm
eed
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EP22160277.4A
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German (de)
English (en)
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EP4056944A1 (fr
Inventor
Frank Sonnemann
Gerhard Paul
Christian Aichinger
Horst Brunner
Norbert Neubauer
Hans-Rainer Graf
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Diehl Defence GmbH and Co KG
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Diehl Defence GmbH and Co KG
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/001—Electric circuits for fuzes characterised by the ammunition class or type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/121—Initiators with incorporated integrated circuit
    • F42B3/122—Programmable electronic delay initiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/06—Electric fuzes with time delay by electric circuitry
    • F42C11/065—Programmable electronic delay initiators in projectiles

Definitions

  • the invention relates to an electrically initiated ignition and ignition means, also called EED (electro-explosive device).
  • EED electro-explosive device
  • EED are widely used in military applications for the electrical detonation of explosives.
  • Relevant standards for the characterization of EED are national standards such as VG 95378 for the German Armed Forces or international standards such as STANAG 4560, Ed. 3 with the associated Guideline AOP-43, Ed. 3 for NATO.
  • Other national standards are e.g. for the USA the MIL-STD-464C in connection with the manual MIL-HDBK-240A, for the United Kingdom (UK) the DEFSTAN 59-114 and for France the GAM-DRAM-01/-02.
  • Wire bridges EED BW-EED or Bridge-Wire EED
  • BW-EED or Bridge-Wire EED Bridge-Wire EED
  • the pyrotechnics react with an electric shock that heats a resistance wire (ignition bridge) to glow.
  • Layer bridges EED FB-EED or foil bridge EED
  • the glow bridge does not consist of a resistance wire, but mostly of a layer of resistance material such as tantalum or carbon or of a metal thin film layer that is sputtered onto a glass or ceramic substrate.
  • the ignition device ignition bridge
  • the ignition current is usually supplied via a charged capacitor, which transfers its energy to the EED in a matter of milliseconds.
  • the object of the present invention is to propose improvements with regard to the ignition behavior of an EED.
  • the ignition device is used to ignite a pyrotechnic of an electrically initiated ignition and ignition means and is therefore in particular an ignition device for an EED.
  • the ignition device contains an electrically operated ignition bridge for - in the assembled state or operation of the EED - heating or heating of the pyrotechnics.
  • the ignition device contains a supply unit for supplying the ignition bridge with electrical energy. The energy comes from outside the supply unit. The electrical energy is used in turn to generate warmth or heat in the ignition bridge and in particular to cause the ignition bridge to glow.
  • the supply unit is set up or adapted or configured to provide the energy in the form of at least two energy pulses or to supply it to the bridge.
  • a pause between the energy pulses is supplied to the ignition bridge. It is provided using a PWM program (pulse width modulation) with corresponding pulses and pauses between the pulses.
  • PWM program pulse width modulation
  • "Set up” / "adapted” / “configured” is to be understood in such a way that the supply unit is not only suitable for the corresponding provision, but rather was specifically designed for it.
  • the supply unit is “set up” accordingly, in particular by programming a computing device contained therein or by hard wiring.
  • the pulse durations of the energy pulses and the pause durations of the pauses between two consecutive energy pulses can be freely programmed or selected in the supply unit or in the PWM program.
  • the PWM program is part of the supply unit.
  • a freely or arbitrarily programmed or programmable time sequence of energy pulses and pauses results.
  • An energy pulse is accompanied by the application of a specific voltage or the flow of a specific current in the ignition bridge.
  • the chronological sequence (pulse duration, pause duration) of the energy pulses delivered one after the other to the ignition bridge leads to a chronological sequence of current/voltage pulses in the ignition bridge.
  • the energy pulses lead—particularly because of the pauses between two pulses—to only more gradual or slower heating of the ignition bridge compared to a continuous current supply or a single energy pulse.
  • Every pulse causes one certain energy input and thus a partial heating of the ignition bridge and the environment.
  • the environment includes in particular an edge layer of the pyrotechnics.
  • no energy is supplied to the ignition bridge.
  • the heat is distributed in the ignition bridge and in the pyrotechnics surrounding the ignition bridge in the EED or adjacent to the ignition bridge. This results - if at all - in only an insignificant increase in temperature, but rather in the temperature remaining the same or cooling down somewhat during the breaks.
  • the respective pulse and pause durations can be understood as parameters for an ignition process in the EED or heating process of the pyrotechnics. According to the invention, therefore, a parametric ignition of an EED with pulse width modulation PWM results.
  • Parametric ignition of Electro Explosive Devices (EED) with Pulse Width Modulation (PWM) allows timing of the heat input into the EED firing bridge.
  • PWM Pulse Width Modulation
  • the invention is based on the knowledge that the ignition in the previously known EED took place by capacitor ignition with pulsed discharge. The entire energy stored in the ignition capacitor is suddenly discharged into the ignition bridge in a single "energy pulse". Other ways of igniting EED are e.g. B. only a single ramp-shaped or square-wave current pulse. Capacitor ignitions are generally used in ignition systems for ammunition applications, in particular missile applications.
  • the available electrical energy, in particular stored in an ignition capacitor, is not supplied to the ignition bridge in pulse form, but parameterized in energy packets (pulses), which are comparatively small in particular for the amount of energy supplied.
  • the firing of EED is parameterized. This makes it possible to monitor and control the EED's heating-up process during ignition.
  • the energy pulses are in particular current pulses for energizing or through the ignition bridge, connected to the corresponding voltage pulses at the ignition bridge.
  • the supply unit contains a controllable switch. This is used for the optional electrical connection or separation between the ignition bridge and the energy storage device. A flow of energy or current from the energy store to the ignition bridge is thus made possible or interrupted.
  • the supply unit also contains a control device for operating the switch based on the PWM program. The energy pulses can thus be generated using the PWM program. The energy pulses can be generated particularly easily by a controlled switch.
  • the control unit is implemented as a microcontroller or FPGA (Field Programmable Gate Array).
  • the ignition device thus receives a PWM program for closing (pulse) and opening (pause) the switch.
  • the program in connection with the control device and the switch is therefore set up (when the energy store is connected) to generate the programmed sequence of PWM pulses in the form of the energy pulses.
  • the energy storage is an actual storage, i.e. not a voltage/current source in the sense of a generator, mains connection or the like and also not an energy source that contains energy that is caused by EMC effects or similar (electromagnetic compatibility / e.g. irradiation or coupling from external external energy etc.) is fed into the ignition device or the EED.
  • the PWM program is set up or programmed accordingly such that when the ignition device is operated as intended at the ignition bridge, an actual course of the temperature of the ignition bridge over time is established, which corresponds to a specifiable characteristic curve.
  • the temperature profile that is actually established should therefore correspond to a desired (“specifiable”) profile.
  • the “correspondence” is to be understood within error limits that are acceptable depending on the situation. This includes e.g. B. Tolerance limits of materials / geometries for the actual reproduction of a real ignition device or a real individual EED in relation to a model / prototype etc. used in the design of the program.
  • Either the course or the temperature of the ignition bridge itself can be specified or the temperature of an area of an intended pyrotechnics correlated with the ignition bridge or a other variable correlated with the temperature of the ignition bridge, which should be set as desired.
  • the ignition device is therefore set up overall to actually simulate a desired characteristic curve or course of the temperature of the ignition bridge over time at the ignition bridge during its intended operation—in particular within an intended EED. In this way, the desired ignition behavior of the EED can be implemented.
  • the corresponding determination of the parameters of the PWM program can e.g. B. by tests, simulations, theoretical calculations, etc. can be determined.
  • the PWM program is set up to simulate the characteristic curve, taking into account the geometry and/or material properties and/or the thermal and/or ignition properties of the ignition bridge and a specified pyrotechnic. By including the corresponding properties, it can be ensured that the temperature of the ignition bridge follows the specifiable characteristic curve as precisely as possible.
  • the PWM program is set up to simulate a characteristic curve that is selected or specified in such a way that the ignition bridge melts at least prematurely during normal operation due to temperature overload is excluded. "Hastily” means that the pyrotechnic has not yet been reliably ignited or converted or that the conversion has definitely been initiated. This eliminates a frequent source of error in EED.
  • the PWM program is set up to simulate a characteristic curve that is selected so that in normal operation with the available energy in the intended energy storage a maximum Heat is introduced into an edge layer of an intended pyrotechnic at the ignition bridge. It is assumed here that the material/geometry/electrical properties etc. of an energy storage device and its specified or intended operating parameters are known. The heat and surface layer are selected or taken into account in such a way that the pyrotechnic ignites safely within the scope of practical compliance with the design specifications etc. in the practical implementation of an EED.
  • the PWM program is set up to simulate a characteristic curve that is selected in such a way that a desired temperature rise time is specified.
  • the rise time is to be understood as the time interval in which a specific increase in temperature occurs.
  • the temperature increase is that from the initial temperature (before the start of the first energy pulse) to the maximum temperature of the ignition bridge or the start or complete conversion of the pyrotechnics. This makes it particularly easy to prevent the ignition bridge from burning out/burning out prematurely and thus from malfunctioning of the EED.
  • an associated PWM program can be introduced into the supply unit for an individual intended ignition and ignition device (EED).
  • EED intended ignition and ignition device
  • a specific desired characteristic curve is assigned to the respective EED.
  • different characteristics are desired for different EEDs.
  • This EED can contain the same ignition device in each case, with only an individual PWM program having to be provided in the ignition device.
  • the ignition device can be programmed in such a way that a respective ignition bridge can be controlled individually for a specific application.
  • that is PWM program in the ignition device can be changed or exchanged or at least fed in individually.
  • the PWM program is set up to generate an aperiodic sequence of energy pulses during normal operation.
  • at least not all pulses and all pauses are of the same length, but have at least one irregularity (at least two pulse durations are different or at least two pauses are different). There are therefore sufficient degrees of freedom to be able to simulate a large number of desired characteristic curves.
  • the PWM program is set up to generate energy pulses during intended operation, which or whose respective pulse durations become longer with increasing time and/or to generate pauses between two consecutive energy pulses, which or their respective pause durations become shorter over time.
  • a temperature profile of the ignition bridge that is particularly favorable for triggering the EED can be implemented over time.
  • the object of the invention is also achieved by an ignition unit according to patent claim 11, with an ignition device of the type described above, namely for interaction with an energy store.
  • the ignition unit and at least some of its possible embodiments and the respective advantages have already been explained in connection with the ignition device according to the invention.
  • the energy store is an ignition capacitor. Ignition capacitors are common for EEDs and therefore available.
  • EED electrically initiated ignition and ignition means
  • EED electrically initiated ignition and detonating means
  • the object of the invention is also achieved by a method according to patent claim 14 for igniting a pyrotechnic of an electrically initiated igniting and ignition means.
  • the pyrotechnic is heated with an electrically operated ignition bridge, the ignition bridge being supplied with electrical energy in order to generate heat in the ignition bridge, the energy being provided in the form of at least two energy pulses using a PWM program, the pulse durations the energy pulses and the pause durations of the pauses between two consecutive energy pulses or their pause durations can be freely programmed.
  • the method is carried out on an electrically initiated ignition and ignition means according to the invention.
  • the invention is based on the following findings, observations and considerations and also has the following embodiments.
  • the embodiments are sometimes also referred to as “the invention” for the sake of simplicity.
  • the embodiments can also contain parts or combinations of the above-mentioned embodiments or correspond to them and/or optionally also include embodiments that have not been mentioned before.
  • the invention is based on the idea of parameterizing the temperature rise time in EED bridge wires via programmable ignition electronics in order to increase the reliability of tactical capacitor ignitions. This is accomplished by delivering an aperiodic sequence of energy packets from a charged firing capacitor to the EED bridgewire.
  • the aperiodic sequence is selected in such a way that a specific temperature characteristic is simulated for the heating process.
  • the temperature characteristic is EED-specific and is selected in such a way that premature melting of the wire is prevented and maximum heat is dissipated in the ignition capacitor with the electrical energy available Edge layer of the pyrotechnics (as the area in the immediate vicinity of the EED bridge wire) is introduced.
  • the invention can be used to set the respective optimum timed heating curtain for ignition for a large number of EEDs with different material and geometry data of the bridge wire and thermal and ignition properties of the pyrotechnics.
  • the invention is characterized by the following aspects:
  • the parametric ignition is carried out by an ignition capacitor and not by a battery or voltage source, or is impressed by external electromagnetic interference fields.
  • the parameters are determined in such a way that a desired temperature characteristic is simulated when heating the EED bridge wire with the aim of increasing the reliability of EED ignition in tactical systems.
  • the parametric ignition is implemented in programmable ignition electronics in order to individually control different types of EED.
  • the basic idea is the targeted loading of EED with aperiodic energy pulses to parameterize the temperature rise time in tactical ignition systems.
  • the aim is to increase the reliability of capacitor ignitions in tactical systems by parameterizing the temperature rise time, taking into account the individual geometry and material data of the EED bridge wire and the pyrotechnics used.
  • FIG 1 shows an electrically initiated ignition and detonating means, ie an EED 2.
  • This contains a pyrotechnic 4 and an ignition unit 6 serving to ignite the pyrotechnic 4.
  • the ignition unit 6 in turn contains an ignition device 10 and an energy store 11, here an ignition capacitor.
  • the ignition device 10 contains an ignition bridge 8 and a supply unit 16 which is used to supply the ignition bridge 8 with electrical energy 9 .
  • the electrical energy is converted into heat 12 in the ignition bridge 8 .
  • the heat 12 is used to ignite the pyrotechnic 4.
  • the heat 12 heats essentially only an edge layer 14 of the pyrotechnics 4 indicated hatched in the figure, in order to initiate its conversion.
  • the edge layer 14 is immediately adjacent to the ignition bridge 8 or surrounds it.
  • the supply unit 16 is set up to provide the electrical energy 9 for generating the heat 12 in the form of at least two energy pulses 18 which are sent to the ignition bridge 8 in chronological succession. Between each two energy pulses 18 there is a pause in which no energy is supplied to the ignition bridge 8 . In the example, a total of nine energy pulses 18 (see Figures 4 to 6 ) provided by which in figure 1 only the first 3 are indicated. The energy for the energy pulses 18 comes from the energy store 11.
  • the energy provided by the energy store 11 is divided into energy pulses 18 using a PWM program 20.
  • the supply unit 16 contains a controllable electrical switch 22, which is connected in terms of circuitry between the energy store 11 and the ignition bridge 8, which is indicated here only symbolically by dashed lines.
  • the switch 22 thus closes or opens a circuit between the energy store 11 and the firing bridge 8, which is not shown in full here, or supplies the firing bridge 8 with current/voltage or not.
  • the supply unit 16 also contains a control device 24 for actuating (opening or closing) the switch 22.
  • the control device 24 works in accordance with the PWM program 20.
  • the switch 22 is closed by the control device 24 during a respective pulse duration tON (k). and opened during a respective pause duration tOFF (k).
  • the respective pulse durations tON (k) and pause durations tOFF (k) in the PWM program 20 can be freely selected and thus represent parameters for the generation of the heat 12 at the ignition bridge 8 and thus for the - thus parametric - ignition of the pyrotechnics 4.
  • the PWM program 20 can be exchanged or programmed or changed in order to adapt the supply unit 16 to different EEDs 2 in which the supply unit 16 is to be used. So adjustments to different ignition bridges 8 and / or pyrotechnics 4 z. B. in terms of geometry, materials, composition, etc. done by simple adjustments of the PWM program 20.
  • FIG 2 shows the circuit principle of the parametric ignition of the EED 2 with or with the help of pulse width modulation (PWM) in a greatly simplified equivalent circuit diagram.
  • a current I flows in this when the switch 22 is closed from the energy store 11 into the ignition bridge 8 and thus forms (together with the voltage drop across the ignition bridge 8) an energy pulse 18 in order to generate heat in the bridge resistor REED.
  • the switch 22 is closed and opened based on the PWM program 20, which is shown in figure 2 by a PWM sequence tPWM (see Figures 3 and 4 ) is indicated.
  • the switches 22 and S1 are electronic switches here.
  • figure 2 thus shows the circuit principle of a parametric ignition of an EED 2 with pulse width modulation.
  • the with a DC voltage DC: direct current, here in the sense of DC voltage
  • DC direct current, here in the sense of DC voltage
  • Discharge bridge resistor REED Discharge bridge resistor REED.
  • the switch 22 is controlled via a pulse width modulation PWM or the PWM sequence tPWM.
  • FIG 3 shows an example of a general PWM sequence tPWM over time t, ie the actuation of switch 22 using PWM program 20.
  • An ordinate value of 0 corresponds to open switch 22, and a value of 1 to closed switch 22.
  • PWM sequence tPWM includes a total of k periods T(1) to T(k).
  • figure 3 thus shows the definition of a PWM sequence tPWM with the switch-on times tON(k) of the switch 22 or pulse durations, the switch-off times tOFF(k) of the switch 22 or the pause durations, and the period durations T(k), where k is the respective pulse number , ie number or sequence number of the energy pulse 18 means.
  • figure 4 12 thus shows an exemplary embodiment of a PWM sequence tPWM made up of a total of nine individual pulses in the form of energy pulses 18 with different switch-on and switch-off times.
  • the timing is aperiodic in terms of both pulse and pause durations.
  • the pulse durations increase continuously over time, the pause durations decrease.
  • figure 5 shows the example of an ignition current I measured for this sequence, ie the associated current I or ignition current through the ignition bridge 8 with the PWM sequence tPWM figure 4 .
  • figure 6 shows an actual profile 26 of the temperature T over time t at the firing bridge 8 of the EED 2 for the PWM sequence tPWM figure 4 or the current I from figure 5 .
  • the PWM sequence tPWM or the associated PWM program 20 with the corresponding pulse durations tON and pause durations tOFF is selected such that the actual course 26 follows a desired or predetermined or specifiable characteristic curve 28 .
  • the characteristic curve 28 indicates how the temperature T should develop over time t.
  • the specification is made in such a way that, on the one hand, reliable ignition of the pyrotechnics 4 is ensured by sufficient heat 12 being introduced into the edge layer 14 .
  • the ignition bridge 8 does not melt as a result of the heat 12 before the pyrotechnics 4 have been successfully ignited or converted. Because once it melts, no further current flow and no further heating would be possible. Actual ignition or conversion would therefore no longer take place. A premature melting of the ignition bridge 8 due to temperature overload is thus ruled out by specifying the characteristic curve 28 and its actual implementation using the PWM program 20 .
  • the characteristic and thus also the PWM program 20 is also selected in such a way that with the energy available in the energy store 11 a maximum amount of heat 12 or amount of heat is introduced into the edge layer 14 .
  • Characteristic curve 28 and PWM program 20 are also selected in such a way that a desired or specified rise time TA for the temperature T, starting from the initial temperature up to the maximum temperature, results.
  • the geometry as well as the material, heat and ignition properties of the ignition bridge 8 and the pyrotechnics 4 were taken into account.
  • figure 6 thus shows the example for a sequence tPWM figure 4 measured heating process of an EED ignition bridge 8.
  • the actual heating only takes place during the tON times.
  • the temperature of the ignition bridge 8 (wire temperature) drops.
  • the heating-up process of the ignition bridge can be adjusted by defining the tON and tOFF times. To generate the measurement curve, the heating was measured with a temperature sensor on an inert EED 2 (without pyrotechnics 4).

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Claims (15)

  1. Arrangement d'amorçage (10) destiné à allumer un élément pyrotechnique (4) d'un moyen d'allumage et d'amorçage (2) initié électriquement,
    - comprenant un pont d'amorçage (8) à fonctionnement électrique destiné à échauffer l'élément pyrotechnique (4),
    - comprenant une unité d'alimentation (16) destinée à alimenter le pont d'amorçage (8) avec de l'énergie électrique (9) pour la production de chaleur (12) dans le pont d'amorçage (8),
    - l'unité d'alimentation (16) étant conçue pour mettre l'énergie (9) à disposition sous la forme d'au moins deux impulsions d'énergie (18) à l'aide d'un programme PWM (20),
    - avec lequel les durées d'impulsion (tON) des impulsions d'énergie (18) et les durées de pause (tOFF) des pauses entre deux impulsions d'énergie (18) successives sont programmables librement.
  2. Arrangement d'amorçage (10) selon la revendication 1, caractérisé en ce que l'unité d'alimentation (16) contient un commutateur (22) commandable destiné à connecter électriquement le pont d'amorçage (8) à un accumulateur d'énergie (11) et un dispositif de commande (24) destiné à actionner le commutateur (22) à l'aide du programme PWM (20) en vue de générer les impulsions d'énergie (18).
  3. Arrangement d'amorçage (10) selon l'une des revendications précédentes, caractérisé en ce que le programme PWM (20) est conçu pour que, lors d'un fonctionnement de l'arrangement d'amorçage (10) conformément à sa destination, un tracé (26) effectif de la température (T) du pont d'amorçage (8) en fonction du temps (t) s'établit au niveau du pont d'amorçage (8), lequel correspond à une courbe caractéristique (28) pouvant être prédéfinie.
  4. Arrangement d'amorçage (10) selon la revendication 3, caractérisé en ce que le programme PWM (20) est conçu pour simuler la courbe caractéristique (28) en tenant compte des propriétés géométriques et/ou matérielles et/ou des propriétés de chaleur et/ou d'amorçage du pont d'amorçage (8) et d'un élément pyrotechnique (4) conforme à la destination.
  5. Arrangement d'amorçage (10) selon l'une des revendications 3 à 4, caractérisé en ce que le programme PWM (20) est conçu pour simuler une courbe caractéristique (28) qui est choisie de telle sorte que lors d'un fonctionnement conforme à la destination, une fusion au moins précipitée du pont d'amorçage (8) en raison d'une surcharge de température est exclue.
  6. Arrangement d'amorçage (10) selon l'une des revendications 3 à 5, en association avec la revendication 2, caractérisé en ce que le programme PWM (20) est conçu pour simuler une courbe caractéristique (28) qui est choisie de telle sorte que lors d'un fonctionnement conforme à la destination, une chaleur maximale (12) est introduite avec l'énergie (9) disponible dans l'accumulateur d'énergie (11) conforme à la destination dans une zone de bordure (14) d'un élément pyrotechnique (4) conforme à la destination au niveau du pont d'amorçage (8).
  7. Arrangement d'amorçage (10) selon l'une des revendications 3 à 6, caractérisé en ce que le programme PWM (20) est conçu pour simuler une courbe caractéristique (28) qui est choisie de telle sorte qu'un temps de montée (TA) souhaité de la température (T) est prédéfini.
  8. Arrangement d'amorçage (10) selon l'une des revendications 3 à 7, caractérisé en ce que pour un moyen d'allumage et d'amorçage (2) individuel conforme à la destination ayant une courbe caractéristique (28) souhaitée respectivement associée, un programme PWM (20) associé peut être incorporé dans l'unité d'alimentation (16) .
  9. Arrangement d'amorçage (10) selon l'une des revendications précédentes, caractérisé en ce que le programme PWM (20) est conçu pour, lors d'un fonctionnement conforme à la destination, générer une séquence apériodique d'impulsions d'énergie (18).
  10. Arrangement d'amorçage (10) selon la revendication 9, caractérisé en ce que le programme PWM (20) est conçu pour, lors d'un fonctionnement conforme à la destination, générer des impulsions d'énergie dont les durées d'impulsion (tON) respectives deviennent plus longues à mesure que le temps augmente et/ou pour générer des pauses entre à chaque fois deux impulsions d'énergie successives, qui deviennent plus courtes à mesure que le temps augmente.
  11. Unité d'amorçage (6), comprenant un arrangement d'amorçage (10) selon l'une des revendications 2 à 10 et comprenant l'accumulateur d'énergie (11).
  12. Unité d'amorçage (6) selon la revendication 11, caractérisée en ce que l'accumulateur d'énergie (11) et un condensateur d'amorçage (C).
  13. Moyen d'allumage et d'amorçage (2) initié électriquement, comprenant un arrangement d'amorçage (10) selon l'une des revendications 1 à 10 ou comprenant une unité d'amorçage (6) selon l'une des revendications 11 à 12 et comprenant l'élément pyrotechnique (4).
  14. Procédé pour allumer un élément pyrotechnique (4) d'un moyen d'allumage et d'amorçage (2) initié électriquement, avec lequel
    - l'élément pyrotechnique (4) est échauffé avec un pont d'amorçage (8) à fonctionnement électrique,
    - le pont d'amorçage (8) étant alimenté avec de l'énergie électrique (9) afin de générer de la chaleur (12) dans le pont d'amorçage (8),
    - l'énergie (9) étant mise à disposition sous la forme d'au moins deux impulsions d'énergie (18) à l'aide d'un programme PWM (20),
    - les durées d'impulsion (tOFF) des impulsions d'énergie (18) et les durées de pause (tOFF) entre deux impulsions d'énergie (18) successives étant programmables librement.
  15. Procédé selon la revendication 14, caractérisé en ce qu'il est mis en œuvre sur un moyen d'allumage et d'amorçage (2) initié électriquement selon la revendication 13.
EP22160277.4A 2021-03-11 2022-03-04 Allumage paramétrique d'un dispositif électro-explosif au moyen d'un contrôleur mli Active EP4056944B1 (fr)

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DE (1) DE102021001306A1 (fr)
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DE8915345U1 (de) 1988-08-26 1990-06-07 Robert Bosch Gmbh, 7000 Stuttgart Elektronische Einrichtung zum Ansteuern von Sicherungsmitteln
DE3919376C2 (de) 1989-06-14 1993-11-04 Daimler Benz Ag Zuendeinrichtung fuer eine insassen-schutzvorrichtung in einem fahrzeug
DE19536573C1 (de) 1995-07-17 1996-11-14 Siemens Ag System zum Auslösen eines Rückhaltemittels in einem Fahrzeug
US5898122A (en) * 1996-07-02 1999-04-27 Motorola, Inc. Squib ignitor circuit and method thereof
US7493859B2 (en) * 2004-08-30 2009-02-24 David Wayne Russell System and method for zero latency distributed processing of timed pyrotechnic events
US11309880B2 (en) 2017-12-20 2022-04-19 The Boeing Company High-performance current-limited pyrotechnic initiator drive circuits
CN111023923A (zh) 2019-12-31 2020-04-17 西安物华巨能爆破器材有限责任公司 磁电雷管起爆控制电路

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DE102021001306A1 (de) 2022-09-15
EP4056944A1 (fr) 2022-09-14
HUE062846T2 (hu) 2023-12-28

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