EP0645945B1 - Dispositif avertisseur à éclairs utilisé sur des véhicules - Google Patents

Dispositif avertisseur à éclairs utilisé sur des véhicules Download PDF

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Publication number
EP0645945B1
EP0645945B1 EP94114494A EP94114494A EP0645945B1 EP 0645945 B1 EP0645945 B1 EP 0645945B1 EP 94114494 A EP94114494 A EP 94114494A EP 94114494 A EP94114494 A EP 94114494A EP 0645945 B1 EP0645945 B1 EP 0645945B1
Authority
EP
European Patent Office
Prior art keywords
fault
warning light
signal
flashing warning
light installation
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
EP94114494A
Other languages
German (de)
English (en)
Other versions
EP0645945A1 (fr
Inventor
Frank Klein
Gerhard Hinze
Werner Lepper
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP0645945A1 publication Critical patent/EP0645945A1/fr
Application granted granted Critical
Publication of EP0645945B1 publication Critical patent/EP0645945B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/34—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp to provide a sequence of flashes

Definitions

  • the invention relates to a flashing light system for operation in vehicles, with a voltage converter, which by means of a Converter control is fed from the vehicle electrical system, with an energy storage device that comes from that of the voltage converter generated voltage is charged and with a Flash tube forms a lamp circuit and with an ignition stage, connected to the flash tube and to a clock is, the ignition level depending on the Clock signals from the clock pulse for the ignition of the Flash tube generated.
  • Flashing light system known for operating in Vehicles is suitable.
  • This flashing light warning system shows a voltage converter, which acts as a flyback converter is formed and the converter control from the Vehicle electrical system is supplied. From that of that Voltage converter generated voltage is a Energy storage, which as a high capacity having electrolytic capacitor trained capacitor is charged. This forms with at least one Flash tube a circle of lamps.
  • the flashing light warning system also has an ignition level that has a Coupling the ignition electrode to the flash tube and with one Clock is connected, the ignition level depending from the clock signals of the clock pulse for the Ignition of the flash tube creates and the energy storage is discharged.
  • the well-known flashing light system has the another via a lightning voltage monitor, which the Checked state of charge of the energy storage and in Depending on the state of charge of the energy storage Controls converter control.
  • This known safety shutdown proves to be disadvantageous that a shutdown of the converter only due an error occurs in which the generation of Voltage pulses in the lamp circuit are no longer possible. It proves to be particularly disadvantageous that with one Body closure of the high voltage against ground, for example then when a person with the leads to the flash tube comes into contact, no disconnection of the voltage converter occurs because voltage pulses continue in the lamp circuit can be generated.
  • the invention has for its object a Flashing light warning system to be created when occurring Malfunctions and damage a high security against Destruction of components of the system and people, those with high-voltage parts of the system in Come into contact, protects as best as possible from damage.
  • a current sensor is arranged that the Current sensor is connected to a residual current detection, that the leakage current detection connected to the clock is that the leakage current detection detects the clock signal from the Clock linked to the signal from the current sensor that an error signal only outside the pulse duration of the Flashes of light is generated and that the fault current detection with the converter control to switch off the Voltage converter connected when an error signal is present is.
  • a current sensor in the lamp circuit is arranged because the flowing in the lamp circle Current can be easily determined.
  • the Residual current detection is connected to the clock that the leakage current detection the clock signal from the clock linked to the signal from the current sensor and that a Error signal only outside the pulse duration of the light flashes is generated because it is simple and inexpensive Way through the fault current detection in the lamp circuit flowing current can be detected that is not through the Ignition of the flash tube and the discharge of the Energy storage is due, but outside of Pulse duration of the light flashes, which as current pulses in the Lamp circle can be measured by the current sensor.
  • Such a fault current to be detected in the lamp circuit can be caused, for example, by a broken glass on the flash tube or by destroying the cable insulation in the Lamp circle take place when a body connection of the high voltage against mass occurs.
  • the energy storage is against Unload mass. Will the body close by a human generated, this can be damaged.
  • the fault current detection with a Fast discharge circuit is connected to the Energy storage is connected and this at The present error signal discharges, making it simple and the remaining charge of the Energy storage when a fault current occurs in the High voltage leading lamp circuit is degraded, which damage to components of the flashing light warning system and of people who come into contact with the lamp circle, is excluded.
  • the fault memory by disconnecting the flashing light warning system is resettable from the on-board voltage, which ensures is that the existence of an error is consciously perceived a self-activation of the flashing light warning system is avoided and an error check by a Specialist.
  • a flash misfire detection is arranged, so that there is additional security if the Functionality of the flashing light warning system, for example due to a break in the lead of the flash tube or due to a lack of age-related ignitability of the Flash tube no longer exists. In this case too a shutdown of the voltage converter via the Converter control and a quick discharge of the Energy storage via the quick discharge circuit.
  • the fault current detection is a Has a timer whose time constant is greater than that Duration of the flash pulse, which makes it particularly easy and cost-effective way is avoided that by the Periodic current pulses initiated in the clock signal Lamp circle through the discharge of the energy storage the flash tube to switch off the voltage converter cause because the generation of an error signal for the duration the lightning pulse is blocked.
  • the current sensor has a diode arrangement has in the lamp circuit, whereby the current measurement with high security and high accuracy.
  • the flashing light warning system with the mentioned protective devices at a one automatically Acting bracket with insert lamp for Detective vehicles for optional mounting on the Vehicle roof to use because of such use easily damage the flashing light warning system to Example in an accident, in which the Emergency light due to its attachment of the Vehicle loosens, gets damaged and the flash tube or high-voltage circuit parts are exposed and for example can come into contact with people.
  • the only figure shows a block diagram of a Flashing light warning system according to the invention for operation in Vehicles.
  • EMC filter (F) connected to ground is with this not shown on-board voltage connected, for example the motor vehicle battery exists.
  • the voltage converter (S) which can be constructed as a flyback converter, for example, is primarily from the filtered on-board voltage via a Transformer control (W) powered.
  • the voltage converter (S) is connected on the secondary side to an energy store (E) which as a high capacity electrolytic capacitor can be trained.
  • the energy storage (E) is through the voltage generated by the voltage converter (S) charged.
  • the energy store (E) is equipped with at least one flash tube (BR) connected and can be unloaded via this. Of the Energy store (E) forms with the at least one Flash tube (BR) a circle of lamps.
  • the flash tube (BR) is connected to an ignition stage (Z), which is fed from the voltage by the voltage converter (S) becomes.
  • the ignition stage (Z) is also with a clock (T) connected, which generates pulse-shaped clock signals and the Ignition stage (Z) supplies.
  • the ignition stage (Z) produces in Dependence on the clock signals of the clock generator (T) Firing pulses that the at least one flash tube (BR) over an ignition electrode can be supplied. Due to the Ignition pulses from the ignition stage (Z) ignite the gas mixture the flash tube (BR) and discharging the energy storage (E) a flash of light is generated.
  • a current flows in the lamp circle.
  • the lamp circuit is connected to ground.
  • this is Energy storage assigned a lightning voltage monitor (BW), which controls the state of charge of the energy store (E) and depending on a predetermined voltage value Signal generates that the converter control (W) controls and whereby the voltage converter (S) is switched off.
  • BW lightning voltage monitor
  • S voltage converter
  • booster voltage generation (B) that from the voltage is supplied by the voltage converter (S).
  • This booster voltage generation (B) has one high voltage resistant capacitor with a small Charge time constants to initiate the lightning discharge.
  • the current sensor (SS) is on the one hand with a Flash exposure detection (BA) and the other with one Residual current detection (FE) electrically connected.
  • the Lightning misfire detection (BA) shows an example triggerable flip-flop on, the triggering by the im Lamp circle generated by the ignition of the flash tube (BR) Current pulses occur. With a timed Exposing the current pulses in the lamp circuit creates the Flash misfire detection (BA) an error signal.
  • the residual current detection (FE) is also with the Clock (T) connected and also shows an example a triggerable flip-flop. Residual current detection (FE) links that measured by the current sensor (SS) Current signal in the lamp circuit with that from the clock generator (T) generated clock signal, which is the same as that Triggering ignition stage (Z) to generate ignition pulses, such that an error signal only outside the pulse duration the flashes of light and that in the circle of lamps occurring current pulses is generated. For this, the Residual current detection (FE) for linking the signals from the current sensor (SS) and the clock (T) an adder exhibit.
  • the residual current detection (FE) has a timing element with a time constant that is greater than the duration of the lightning pulse.
  • Both the residual current detection (FE) and the Flash exposure detection (BA) are each with a Fault memory (FS) connected. If there is an error signal from the flash exposure detection (BA) or the Fault current detection (FE) is generated by the fault memory (FS) a signal to switch off the voltage converter (S). For this the fault memory (FS) is electrically conductive with the Converter control (W) connected. In addition, the error memory (FS) electrically conductive with a quick discharge circuit (SE) connected, in the event of an error signal of lightning interruption detection (BA) or residual current detection (FE) is activated by the fault memory (FS).
  • a quick discharge circuit SE
  • the Fast discharge circuit (SE) is both electrically conductive with the energy storage (E) as well as with the Booster voltage generation (B) connected and discharges the Energy storage (E) and the capacitor of the Booster voltage generation (B) when controlled by the Fault memory (FS) as soon as possible.
  • the Fast discharge circuit (SE) an electronic switch and a low-resistance discharge resistor.
  • the clock (T) is the one shown here Embodiment for triggering with electrically conductive connected to the converter control (W).
  • the generation of an error signal by the Residual current detection (FE) takes place here as an example Time less than or equal to 100 milliseconds and in particular approximately 30 milliseconds after the occurrence of a fault current.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Traffic Control Systems (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Audible And Visible Signals (AREA)

Claims (11)

  1. Appareil avertisseur par feu à éclats pour utilisation sur des véhicules, comportant un convertisseur de tension (S) qui est alimenté à partir du réseau de bord du véhicule au moyen d'un dispositif de commande de convertisseur (W), ainsi qu'un accumulateur d'énergie (E) qui se charge à partir de la tension produite par le convertisseur de tension (S) et, avec un tube à éclats (BR), forme un circuit de lampe, et qu'un étage d'allumage (Z) qui est relié avec le tube à éclats (BR) et avec un émetteur de signal d'horloge (T), dans lequel l'étage d'allumage (Z) produit, en fonction des signaux d'horloge de l'émetteur de signal d'horloge (T), des impulsions d'allumage pour l'allumage du tube à éclats (BR), caractérisé par le fait que dans le circuit de lampes est disposé un détecteur de courant (SS), que le détecteur de courant (SS) est relié à un dispositif de reconnaissance de défaillance du courant (FE), que le dispositif de reconnaissance de défaillance du courant (FE) est relié à l'émetteur de signal d'horloge (T), que le dispositif de reconnaissance de défaillance du courant (FE) relie logiquement le signal d'horloge, provenant de l'émetteur de signal d'horloge (T), avec le signal provenant du détecteur de courant (SS), qu'il n'y a production d'un signal de défaillance qu'en dehors de la durée de l'impulsion des éclats lumineux et que le dispositif de reconnaissance de défaillance du courant (FE) est relié avec le dispositif de commande du convertisseur (W) pour mettre hors circuit le convertisseur de tension (S) en présence d'un signal de défaillance.
  2. Appareil avertisseur par feu à éclats, selon la revendication 1, caractérisé par le fait que le dispositif de reconnaissance de défaillance du courant (FE) est relié à un circuit de décharge rapide (SE) qui est relié à l'accumulateur d'énergie (E) et le décharge en présence d'un signal de défaillance.
  3. Appareil avcrtisseur par feu à éclats, selon la revendication 2, caractérisé par le fait que dans la liaison entre le dispositif de reconnaissance de défaillance du courant (FE) avec le dispositif de commande du convertisseur (W) et le circuit de décharge rapide (SE) est disposée une mémoire de défaillances (FS).
  4. Appareil avertisseur par feu à éclats, selon la revendication 3, caractérisé par le fait que la mémoire de défaillances (FS) peut être réinitialisée par séparation de l'appareil avertisseur par feu à éclats d'avec la tension de bord.
  5. Appareil avertisseur par feu à éclats, selon la revendication 3 ou 4, caractérisé par le fait que, parallèlement au dispositif de reconnaissance de défaillance du courant (FE) dans la liaison entre le détecteur de courant (SS) et la mémoire de défaillances (FS) est disposé un dispositif de reconnaissance de non fonctionnement du feu à éclats.
  6. Appareil avertisseur par feu à éclats, selon au moins l'une des revendications précédentes, caractérisé par le fait que la liaison logique du signal provenant du détecteur de courant (SS) avec le signal d'horloge provenant de l'émetteur de signal d'horloge (T) se fait au moyen d'un additionneur.
  7. Appareil avertisseur par feu à éclats, selon au moins l'une des revendications précédentes, caractérisé par le fait que le dispositif de reconnaissance de défaillance du courant (FE) présente un élément de temporisation dont la constante de temps est supérieure à la durée de l'impulsion de l'éclat.
  8. Appareil avertisseur par feu à éclats, sclon au moins l'une des revendications précédentes, caractérisé par le fait que le dispositif de reconnaissances de défaillance du courant (FE), le dispositif de reconnaissances de non fonctionnement du feu à éclats (BA) et la mémoire de défaillances (FS) présentent des étages de déclenchement pour le traitement du signal.
  9. Appareil avertisseur par feu à éclats, selon au moins l'une des revendications précédentes, caractérisé par le fait que le détecteur de courant (SS) présente une disposition de diodes dans le circuit de lampes.
  10. Appareil avertisseur par feu à éclats, selon au moins l'une des revendications précédentes, caractérisé par le fait que le circuit de décharge rapide (SE) présente un commutateur électronique et une résistance de décharge à faible résistance.
  11. Appareil avertisseur par feu à éclats, sclon au moins l'une des revendications précédentes, caractérisé par l'emploi d'un luminaire présentant un support à action automatique pour des véhicules de police pour mise en place à la demande sur le toit du véhicule.
EP94114494A 1993-09-29 1994-09-15 Dispositif avertisseur à éclairs utilisé sur des véhicules Expired - Lifetime EP0645945B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4333045A DE4333045A1 (de) 1993-09-29 1993-09-29 Lichtblitzwarnanlage zum Betrieb in Fahrzeugen
DE4333045 1993-09-29

Publications (2)

Publication Number Publication Date
EP0645945A1 EP0645945A1 (fr) 1995-03-29
EP0645945B1 true EP0645945B1 (fr) 1998-12-16

Family

ID=6498875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114494A Expired - Lifetime EP0645945B1 (fr) 1993-09-29 1994-09-15 Dispositif avertisseur à éclairs utilisé sur des véhicules

Country Status (5)

Country Link
EP (1) EP0645945B1 (fr)
AT (1) ATE174749T1 (fr)
DE (2) DE4333045A1 (fr)
DK (1) DK0645945T3 (fr)
ES (1) ES2124826T3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU385303A1 (ru) * 1971-02-01 1973-05-29 4»СЕСОЮЗНАЯ ПАТЬНТНи-ТСХКйНЕПНА?
DE2703387B2 (de) * 1977-01-27 1979-07-12 Heimann Gmbh, 6200 Wiesbaden Kennleuchtenanlage für Krafträder
IT1155172B (it) * 1982-04-30 1987-01-21 Wepoo Spa Circuito di protezione di un dispositivo di segnalazione a lampeggioamento
US4701672A (en) * 1985-05-28 1987-10-20 Tomar Electronics, Inc. Strobe flash monitor
US4870543A (en) * 1988-10-24 1989-09-26 Robert L. Horton Extensible safety light
DE3917062A1 (de) * 1989-05-26 1990-11-29 Hella Kg Hueck & Co Lichtblitzwarnanlage
DE9102562U1 (fr) * 1990-10-26 1991-06-13 Uke Kranefeld Elektronik Gmbh, 4479 Herzlake, De

Also Published As

Publication number Publication date
DE4333045A1 (de) 1995-03-30
DK0645945T3 (da) 1999-08-23
DE59407487D1 (de) 1999-01-28
EP0645945A1 (fr) 1995-03-29
ES2124826T3 (es) 1999-02-16
ATE174749T1 (de) 1999-01-15

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