DE102004038011B3 - Incandescence device for auxiliary heating device of vehicle, has control unit with input voltage signal having specific clock frequency and providing current with saw tooth function for incandescence unit - Google Patents
Incandescence device for auxiliary heating device of vehicle, has control unit with input voltage signal having specific clock frequency and providing current with saw tooth function for incandescence unit Download PDFInfo
- Publication number
- DE102004038011B3 DE102004038011B3 DE200410038011 DE102004038011A DE102004038011B3 DE 102004038011 B3 DE102004038011 B3 DE 102004038011B3 DE 200410038011 DE200410038011 DE 200410038011 DE 102004038011 A DE102004038011 A DE 102004038011A DE 102004038011 B3 DE102004038011 B3 DE 102004038011B3
- Authority
- DE
- Germany
- Prior art keywords
- incandescence
- voltage signal
- input voltage
- control unit
- unit
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/06—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs structurally associated with fluid-fuel burners
- F23Q7/08—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs structurally associated with fluid-fuel burners for evaporating and igniting liquid fuel, e.g. in hurricane lanterns
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft eine Glüheinrichtung für ein Fahrzeugzusatzheizgerät.The The invention relates to a glow device for a Vehicle auxiliary heater.
Bei bekannten Zusatzheizgeräten für Fahrzeuge wird das Glühelement häufig direkt mit einem getakteten, rechteckförmigen und pulsweitenmodulierten Eingangsspannungssignal mit elektrischer Energie versorgt. Die Regelung der Temperatur des Glühelements erfolgt hierbei durch die Veränderung verschiedener Parameter des getakteten Rechtecksignals. Der mit dem Verlauf des Eingangsspannungssignals verbundene Verlauf des Glühelementstroms weist bei einer direkten Beaufschlagung der Glüheinrichtung mit Rechtecksignalen sehr hohe Spitzen und sehr steile Flanken auf, die sich negativ auf die Lebensdauer der Glüheinrichtung auswirken können.at known auxiliary heaters for vehicles becomes the glow element often directly with a clocked, rectangular and pulse width modulated Input voltage signal supplied with electrical energy. The regulation the temperature of the glow element takes place here by changing various Parameters of the clocked square wave signal. The with the course of Input voltage signal associated history of the Glühelementstroms indicates at a direct loading of the glow device with square wave signals very high peaks and very steep flanks that affect negatively the life of the glowing device can affect.
Aus
der Druckschrift
Die Aufgabe der Erfindung ist es somit, diese Nachteile zu vermeiden.The The object of the invention is therefore to avoid these disadvantages.
Gelöst wird dies dadurch, dass die Glüheinrichtung für ein Fafahrzeugzusatzheizgerät die Merkmale des Anspruchs 1 hat. Weitere Ausführungsformen der Erfindung sind den Unteransprüchen zu entnehmen. Is solved this is due to the fact that the glow device for a Fafahrzeugzusatzheizgerät has the features of claim 1. Further embodiments of the invention are the dependent claims refer to.
Die Grundidee der Erfindung beruht darauf, dass bei einer derartigen Glüheinrichtung durch den Einsatz des induktiven Elements und die Benutzung einer geeigneten Taktfrequenz des Eingangsspannungssignals der durch die Glüheinrichtung fließende Glühelementstrom einer Sägezahnfunktion folgt und dieser Strom deutlich begrenzt wird. Durch die damit verbundenen abgeflachten Stromflanken und den kontinuierlicheren Stromfluss durch das Glühelement steigt die Lebensdauer des Glühelements stark an. Außerdem können nun Glühelemente verschiedener Nennspannung (z.B: 12V, 24V) eingesetzt werden.The The basic idea of the invention is based on the fact that in such a glow device through the use of the inductive element and the use of a suitable clock frequency of the input voltage signal by the glow device flowing Glühelementstrom a sawtooth function follows and this stream is significantly limited. By the associated flattened current edges and the more continuous current flow through the glow element increases the life of the glow element strong. Furthermore can now glow elements different nominal voltage (for example: 12V, 24V) are used.
Besonders vorteilhaft ist eine Taktfrequenz zwischen etwa 5 kHz und etwa 20 kHz. Je höher die gewählte Taktfrequenz ist, umso mehr wird der Stromanstieg begrenzt und umso geringer ist die Amplitude und die Restwelligkeit des Stroms, was wiederum zu einer Vergrößerung der Lebensdauer des Glühelements führt.Especially advantageous is a clock frequency between about 5 kHz and about 20 kHz. The higher the chosen one Clock frequency is, the more the current increase is limited and all the more lower is the amplitude and the ripple of the current, which turn to an enlargement of the Lifetime of the glow element leads.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert, wobei auf die Zeichnung Bezug genommen wird. Die Zeichnung zeigt in:The Invention will be explained in more detail with reference to embodiments, wherein is referred to the drawing. The drawing shows in:
Die
in
Das
Fahrzeugzusatzheizgerät
ist weiter mit einem Steuergerät
In
Ein
weiterer Vorteil der Erfindung ist, dass nur noch ein Typ Glühelement
- 1010
- FahrzeugzusatzheizgerätVehicle auxiliary heater
- 1212
- Brennkammercombustion chamber
- 1414
- Glühelementglow element
- 1515
- Wärmetauscherheat exchangers
- 1616
- Brennkammereintrittcombustion chamber inlet
- 1818
- BrennstoffabgabeelementFuel delivery member
- 2020
- Brennstoffleitungfuel line
- 2222
- BrennstofffördereinrichtungFuel feeding
- 2424
- BrennluftfördereinrichtungCombustion air conveyor
- 2626
- Flammeflame
- 2828
- Abgasstutzenflue outlet
- 3030
- Steuergerätcontrol unit
- 3232
- Glüheinrichtungglow device
- 3434
- induktives Elementinductive element
- Uin U in
- EingangsspannungssignalInput voltage signal
- IG I G
- GlühelementstromGlühelementstrom
- TT
- Periodeperiod
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410038011 DE102004038011B3 (en) | 2004-08-04 | 2004-08-04 | Incandescence device for auxiliary heating device of vehicle, has control unit with input voltage signal having specific clock frequency and providing current with saw tooth function for incandescence unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410038011 DE102004038011B3 (en) | 2004-08-04 | 2004-08-04 | Incandescence device for auxiliary heating device of vehicle, has control unit with input voltage signal having specific clock frequency and providing current with saw tooth function for incandescence unit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004038011B3 true DE102004038011B3 (en) | 2006-05-11 |
Family
ID=36217450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410038011 Active DE102004038011B3 (en) | 2004-08-04 | 2004-08-04 | Incandescence device for auxiliary heating device of vehicle, has control unit with input voltage signal having specific clock frequency and providing current with saw tooth function for incandescence unit |
Country Status (1)
Country | Link |
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DE (1) | DE102004038011B3 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2807149A1 (en) * | 1977-02-22 | 1978-08-24 | Nippon Soken | IGNITION SYSTEM FOR ROTARY PISTON MACHINES |
DE3532430C2 (en) * | 1984-09-25 | 1990-07-12 | Nissan Motor Co., Ltd., Yokohama, Kanagawa, Jp | |
DE4015097C1 (en) * | 1990-05-11 | 1991-04-11 | Webasto Ag Fahrzeugtechnik, 8035 Stockdorf, De | |
DE4141093A1 (en) * | 1991-12-13 | 1993-06-17 | Webasto Ag Fahrzeugtechnik | Digitally controlled pulse width modulator for dc motor control - provides output signal with variable duty cycle to be applied to DC motor to control rate of rotation |
EP0437700B1 (en) * | 1989-12-22 | 1994-03-02 | Robert Bosch Gmbh | Heated window power supply-arrangement from the onboard-vehicle energy supply network |
EP1298321A2 (en) * | 2001-09-27 | 2003-04-02 | Beru AG | Method for heating up an electric heating element, particularly a Glow plug for an internal combustion engine |
-
2004
- 2004-08-04 DE DE200410038011 patent/DE102004038011B3/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2807149A1 (en) * | 1977-02-22 | 1978-08-24 | Nippon Soken | IGNITION SYSTEM FOR ROTARY PISTON MACHINES |
DE3532430C2 (en) * | 1984-09-25 | 1990-07-12 | Nissan Motor Co., Ltd., Yokohama, Kanagawa, Jp | |
EP0437700B1 (en) * | 1989-12-22 | 1994-03-02 | Robert Bosch Gmbh | Heated window power supply-arrangement from the onboard-vehicle energy supply network |
DE4015097C1 (en) * | 1990-05-11 | 1991-04-11 | Webasto Ag Fahrzeugtechnik, 8035 Stockdorf, De | |
DE4141093A1 (en) * | 1991-12-13 | 1993-06-17 | Webasto Ag Fahrzeugtechnik | Digitally controlled pulse width modulator for dc motor control - provides output signal with variable duty cycle to be applied to DC motor to control rate of rotation |
EP1298321A2 (en) * | 2001-09-27 | 2003-04-02 | Beru AG | Method for heating up an electric heating element, particularly a Glow plug for an internal combustion engine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
8364 | No opposition during term of opposition |