DE4012977A1 - Vehicular automatic parking light using LED and capacitor - providing lighting current within limit of discharge after cessation of supply from wheel-driven dynamo - Google Patents

Vehicular automatic parking light using LED and capacitor - providing lighting current within limit of discharge after cessation of supply from wheel-driven dynamo

Info

Publication number
DE4012977A1
DE4012977A1 DE4012977A DE4012977A DE4012977A1 DE 4012977 A1 DE4012977 A1 DE 4012977A1 DE 4012977 A DE4012977 A DE 4012977A DE 4012977 A DE4012977 A DE 4012977A DE 4012977 A1 DE4012977 A1 DE 4012977A1
Authority
DE
Germany
Prior art keywords
capacitor
led
dynamo
automatic parking
cessation
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.)
Ceased
Application number
DE4012977A
Other languages
German (de)
Inventor
Joachim Dipl Ing Stall
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.)
STALL JOACHIM DIPL ING FH
Original Assignee
STALL JOACHIM DIPL ING FH
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 STALL JOACHIM DIPL ING FH filed Critical STALL JOACHIM DIPL ING FH
Priority to DE4012977A priority Critical patent/DE4012977A1/en
Publication of DE4012977A1 publication Critical patent/DE4012977A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/01—Electric circuits

Abstract

The AC voltage produced by a dynamo is rectified (D1) and reduced to 5.1 V by a combination of a resistor (R1) and a Zener diode (D2). The capacitor (C1) is charged to provide a source of energy for the LED (D3) which remains lit as long as the voltage on the capacitor persists above about 2 V. The capacitance suffices to maintain the glow for an interval after the dynamo has ceased to provide current e.g. at a standstill. ADVANTAGE - Circuit requires little or no maintenance, and safety of vehicle in traffic is enhanced.

Description

Gattunggenus

Die Erfindung betrifft eine Vorrichtung zur Beleuchtung von Fahrzeugen nach dem Oberbegriff des Anspruchs.The invention relates to a device for lighting of vehicles according to the preamble of the claim.

Angaben zur GattungInformation on the genus

Die beschriebene Vorrichtung soll es ermöglichen, eine Fahrzeugbeleuchtung mit automatischem Standlicht aufzubauen, welche z. B. in der Realisation als Fahrrad- Standlicht dem Benutzer bei Ausfall des Dynamos (Ampelstop) eine weitere Lichtquelle zur Verfügung stellt. Diese Lichtquelle soll nicht, wie bisher üblich, mit Glühlampen, sondern mit Leuchtdioden aufgebaut werden. Die Stromversorgung soll aus einem hochkapazitiven Speicherkondensator erfolgen, welcher durch den Dynamo über eine Ladeschaltung mit Strom versorgt wird.The device described is intended to enable a Set up vehicle lighting with automatic parking lights which z. B. in the realization as a bicycle Parking light for the user if the dynamo fails (stop at traffic lights) provides another light source. This light source should not, as has been customary up to now Incandescent lamps, but with LEDs. The power supply is said to consist of a highly capacitive Storage capacitor done by the dynamo is supplied with power via a charging circuit.

Stand der TechnikState of the art

Es ist bekannt, daß es bereits fertig entwickelte Beleuchtungskonzepte gibt (unter Verwendung von Glühlampen). Es ist weiterhin bekannt, daß Leuchtdioden in Verbindung mit Akkumulatoren als sparsame Lichtquellen eingesetzt werden können.It is known that there are already fully developed lighting concepts there (using incandescent lamps). It is also known that LEDs in Connection with accumulators as economical light sources can be used.

Kritikcriticism

Jedoch wurde bisher in keiner Weise ein Kondensator als längerzeitiger Ladungsspeicher benutzt, da es technisch nicht möglich war, Kondensatoren mit großen Kapazitäten in kleiner Bauform herzustellen. Auch wurden bisher bei Fahrzeugbeleuchtungen aufgrund der schlechten Leuchtkraft keine Leuchtdioden eingesetzt.However, in no way has a capacitor been considered longer-term charge storage used because it is technical was not possible capacitors with large capacities to produce in a small design. So far, too Vehicle lights due to the poor luminosity no LEDs are used.

Aufgabetask

Der Erfindung liegt die Aufgabe zugrunde, die Kombination von Leuchtdioden als Lichtquelle und Kondensatoren als Energiespeicher in Anwendung als Fahrzeugbeleuchtung zu realisieren.The invention is based, the combination of LEDs as light sources and capacitors as Energy storage in use as vehicle lighting too realize.

Lösungsolution

Diese Problematik wird erfindungsgemäß durch das nachfolgende Schaltungskonzept gelöst. This problem is solved according to the invention by the following Circuit concept solved.  

SchaltungsbeschreibungCircuit description

Die vom Fahrraddynamo kommende Wechselspannung wird über D1 gleichgerichtet und mit R1 und D2 auf 5,1 V begrenzt. C1 lädt sich über R1 auf. Sobald er eine Spannung von ca. 2 V erreicht hat, beginnt die Leuchtdiode zu leuchten. Da Id wesentlich kleiner ist als Iges, lädt sich der Kondensator weiter auf, so lange, bis die Ladeendspannung von 5,1 V erreicht ist. Liefert der Dynamo keine Leistung mehr (z. B. im Stillstand des Fahrrades), so entlädt sich der Kondensator über die LED. Die LED leuchtet weiter.The AC voltage coming from the bicycle dynamo is rectified via D 1 and limited to 5.1 V with R 1 and D 2 . C 1 charges via R 1 . As soon as it has reached a voltage of approx. 2 V, the LED starts to light up. Since Id is much smaller than Iges, the capacitor continues to charge until the final charge voltage of 5.1 V is reached. If the dynamo no longer delivers power (e.g. when the bicycle is stationary), the capacitor is discharged via the LED. The LED stays on.

Erzielbare VorteileAchievable advantages

Bestehen insbesondere darin, daß durch die kleinen Baumaße der Bauteile der Ladungsspeicher in das Scheinwerfergehäuse direkt integriert werden kann. Somit entfällt jeglicher zusätzliche Verkabelungsaufwand.In particular, consist of the small dimensions the components of the charge storage in the headlight housing can be integrated directly. This eliminates any additional cabling effort.

Des weiteren sind Leuchtdioden praktisch verschleißfrei, besitzen einen hohen Wirkungsgrad und erzeugen Licht in einer def. Wellenlänge. Durch den starken Bündelungsgrad sind sie auch aus großer Entfernung noch gut erkennbar. Kondensatoren haben (in dieser Anwendung) gegenüber den Batterien den Vorteil eines geringeren Gewichts, unbegrenzter Tiefentladesicherheit, langer Lebensdauer und besserer Umweltverträglichkeit.Furthermore, LEDs are practically wear-free, are highly efficient and produce light in one def. Wavelength. Due to the strong degree of bundling they can still be seen from a great distance. Capacitors have (in this application) compared to the Batteries have the advantage of lower weight, more unlimited Deep discharge safety, long service life and better environmental compatibility.

Durch die geringe Störanfälligkeit der Schaltung entfallen Wartungsarbeiten, die Verkehrssicherheit des Fahrzeugs wird erhöht. Due to the circuit's low susceptibility to malfunction Maintenance work, the traffic safety of the vehicle elevated.  

Funktionsweise der SchaltungHow the circuit works

Die vom Fahrraddynamo kommende Wechselspannung wird über D1 gleichgerichtet und mit R1 und D2 auf 5,1 V begrenzt. C1 lädt sich über R1 auf. Sobald er eine Spannung von ca. 2 V erreicht hat, beginnt die LED zu leuchten. Da Id wesentlich kleiner ist als Iges, lädt sich der Kondensator weiter auf, so lange, bis die Ladeendspannung von 5,1 V erreicht ist. Liefert der Dynamo keine Leistung mehr (z. B. an einer Ampel), so entlädt sich der Kondensator über die LED. Die LED leuchtet weiter.The AC voltage coming from the bicycle dynamo is rectified via D 1 and limited to 5.1 V with R 1 and D 2 . C 1 charges via R 1 . As soon as it has reached a voltage of approx. 2 V, the LED begins to light up. Since Id is much smaller than Iges, the capacitor continues to charge until the final charge voltage of 5.1 V is reached. If the dynamo no longer delivers power (e.g. at a traffic light), the capacitor discharges via the LED. The LED stays on.

Diese Schaltung bietet mehrere Vorteile:
Leuchtdioden sind praktisch verschleißfrei, besitzen einen hohen Wirkungsgrad und erzeugen Licht in einer def. Wellenlänge (Verzicht auf Filtermaßnahmen). Durch den starken Bündelungsgrad sind sie auch aus großer Entfernung noch gut erkennbar. Kondensatoren haben gegenüber den Batterien (NC-Blei-Akkus) den Vorteil eines praktisch wartungsfreien Betriebes, geringen Gewichtes, unbegrenzter Tiefentladesicherheit und langer Lebensdauer.This circuit offers several advantages:
LEDs are practically wear-free, have a high efficiency and generate light in a def. Wavelength (no filter measures). Due to the strong degree of bundling, they are still easily recognizable from a distance. Compared to batteries (NC lead-acid batteries), capacitors have the advantage of practically maintenance-free operation, low weight, unlimited protection against deep discharge and a long service life.

Anwendungsgebieteapplication areas

Fahrzeugscheinwerfer mit und ohne automatisches Standlicht, jede Art von Signalisationsbeleuchtung, solargespeiste Anzeigetafeln.Vehicle headlights with and without automatic parking lights, any kind of signaling lighting, solar powered Scoreboards.

Claims (1)

Oberbegriff:
Vorrichtung zur Beleuchtung von Fahrzeugen unter Verwendung von Leuchtdioden als Lichtquelle und Kondensatoren als Energiespeicher;
kennzeichnender Teil:
dadurch gekennzeichnet, daß zur Lichterzeugung eine oder mehrere Leuchtdioden bzw. zur Energiespeicherung ein oder mehrere Kondensatoren verwendet werden;
dadurch auch gekennzeichnet, daß Leuchtdioden zur Unterstützung herkömmlicher Beleuchtungssysteme additiv eingesetzt werden können;
dadurch auch gekennzeichnet, daß mit den oben beschriebenen Bauteilen ein automatisches Standlicht aufgebaut werden kann.Generic term:
Device for illuminating vehicles using light-emitting diodes as light sources and capacitors as energy stores;
characteristic part:
characterized in that one or more light emitting diodes or one or more capacitors are used for energy generation;
characterized in that light emitting diodes can be used additively to support conventional lighting systems;
characterized in that an automatic parking light can be built with the components described above.
DE4012977A 1990-04-24 1990-04-24 Vehicular automatic parking light using LED and capacitor - providing lighting current within limit of discharge after cessation of supply from wheel-driven dynamo Ceased DE4012977A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4012977A DE4012977A1 (en) 1990-04-24 1990-04-24 Vehicular automatic parking light using LED and capacitor - providing lighting current within limit of discharge after cessation of supply from wheel-driven dynamo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4012977A DE4012977A1 (en) 1990-04-24 1990-04-24 Vehicular automatic parking light using LED and capacitor - providing lighting current within limit of discharge after cessation of supply from wheel-driven dynamo

Publications (1)

Publication Number Publication Date
DE4012977A1 true DE4012977A1 (en) 1991-11-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE4012977A Ceased DE4012977A1 (en) 1990-04-24 1990-04-24 Vehicular automatic parking light using LED and capacitor - providing lighting current within limit of discharge after cessation of supply from wheel-driven dynamo

Country Status (1)

Country Link
DE (1) DE4012977A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134164A1 (en) * 1991-10-16 1993-04-22 Haack Sabine Electronic rear lamp for bicycle - uses storage capacitor to provide current for stationary safety light function
EP1555195A1 (en) * 2004-01-16 2005-07-20 Shimano Inc. Bicycle lighting device
WO2020078037A1 (en) * 2018-10-19 2020-04-23 广州小鹏汽车科技有限公司 Vehicle, and oled-based dynamic indication system and method for automatic parking

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732780A1 (en) * 1977-07-20 1979-02-08 Schraudner Josef Emergency system for vehicle indicating lights - uses LEDs as standby lights if incandescent lamps fail
DE3132005A1 (en) * 1981-08-13 1983-03-03 Rupert Dipl.-Ing. Etzbach Arrangement for maintaining illumination of bicycles during temporary stationary periods

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732780A1 (en) * 1977-07-20 1979-02-08 Schraudner Josef Emergency system for vehicle indicating lights - uses LEDs as standby lights if incandescent lamps fail
DE3132005A1 (en) * 1981-08-13 1983-03-03 Rupert Dipl.-Ing. Etzbach Arrangement for maintaining illumination of bicycles during temporary stationary periods

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134164A1 (en) * 1991-10-16 1993-04-22 Haack Sabine Electronic rear lamp for bicycle - uses storage capacitor to provide current for stationary safety light function
EP1555195A1 (en) * 2004-01-16 2005-07-20 Shimano Inc. Bicycle lighting device
US7204623B2 (en) 2004-01-16 2007-04-17 Shimano Inc. Bicycle lighting device
WO2020078037A1 (en) * 2018-10-19 2020-04-23 广州小鹏汽车科技有限公司 Vehicle, and oled-based dynamic indication system and method for automatic parking

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OP8 Request for examination as to paragraph 44 patent law
8122 Nonbinding interest in granting licences declared
8131 Rejection