DE4017670A1 - Solar driving of production car ventilation fan - using step down converter matching high voltage generator to high current motor - Google Patents
Solar driving of production car ventilation fan - using step down converter matching high voltage generator to high current motorInfo
- Publication number
- DE4017670A1 DE4017670A1 DE4017670A DE4017670A DE4017670A1 DE 4017670 A1 DE4017670 A1 DE 4017670A1 DE 4017670 A DE4017670 A DE 4017670A DE 4017670 A DE4017670 A DE 4017670A DE 4017670 A1 DE4017670 A1 DE 4017670A1
- Authority
- DE
- Germany
- Prior art keywords
- solar generator
- motor
- vehicle fan
- generator
- power
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000009423 ventilation Methods 0.000 title 1
- 239000003990 capacitor Substances 0.000 claims abstract description 7
- 239000004065 semiconductor Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 8
- 230000001419 dependent effect Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
- B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
- B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
- B60J7/057—Driving or actuating arrangements e.g. manually operated levers or knobs
- B60J7/0573—Driving or actuating arrangements e.g. manually operated levers or knobs power driven arrangements, e.g. electrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
- B60H1/00428—Driving arrangements for parts of a vehicle air-conditioning electric
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S99/00—Subject matter not provided for in other groups of this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren gemäß dem Oberbegriff von Anspruch 1 und einen Gleichspannungs-Gleichspannungs- Abwärtswandler zur Durchführung des Verfahrens.The invention relates to a method according to the preamble of claim 1 and a direct voltage direct voltage Step-down converter to carry out the method.
Aus der US-PS 39 43 726 ist es vorbekannt, die Speicher batterie eines PKW mit Solarstrom zu laden und bei Bedarf aus dieser Batterie Strom für den Antrieb zweier Lüfter räder bzw. für die Versorgung einer Klimaanlage zu ent nehmen, wobei außer Kühlen auch noch Heizen möglich sein soll. Der damit verbundene, hohe Leistungsbedarf führt zu einer schnellen Batterieentladung, welche - aufgrund der kleinen Solarleistung - nur mit unwirtschaftlichen langen Ladezeiten ausgeglichen werden kann. Der Batteriewirkungs grad führt beim Be- und Entladen zu deutlichen Leistungs verlusten auf dem Weg von den Solarzellen zum Verbraucher, weiterhin wirkt sich das ständige Be- und Entladen negativ auf die Batterielebensdauer aus. From US-PS 39 43 726 it is known, the memory to charge the battery of a car with solar power and when required from this battery electricity for driving two fans wheels or for the supply of air conditioning take, whereby besides cooling also heating is possible should. The associated high power requirement leads to a fast battery discharge, which - due to the small solar power - only with uneconomical long ones Loading times can be compensated. The battery effect degree leads to significant performance when loading and unloading losses on the way from the solar cells to the consumer, the constant loading and unloading also has a negative effect battery life.
Einer direkten Versorgung eines serienmäßig installierten Gebläses mit Solarstrom steht bisher die erforderliche An passung der Spitzenleistungen eines Solargenerators von ca. 60 Watt und eines Serienfahrzeuglüfters von ca. 150 Watt und größer entgegen. Zur Lösung dieses Anpassungsproblems bleibt als bekannte Möglichkeit nur der Einbau eines an den Solargenerator angepaßten speziellen Fahrzeuglüfters.A direct supply of a standard installed Blowers with solar power have so far been required Fit the top performance of a solar generator of approx. 60 watts and a standard vehicle fan of approx. 150 watts and bigger towards. To solve this adjustment problem As a known possibility, only the installation of one of the Special vehicle fan adapted to the solar generator.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, mit dem eine direkte leistungsoptimale Anpassung ohne die Verwendung von spezi ellen Fahrzeuglüftern und zusätzlichen Hilfsbatterien, ins besondere einer Fahrzeugbatterie ermöglicht wird.The invention has for its object a method of to create the kind mentioned above, with which a direct performance-optimized adjustment without the use of spec ellen vehicle fans and additional auxiliary batteries, ins special a vehicle battery is made possible.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß durch die pulsbreitenmodulierte Entladung eines zum Solargenerator parallel geschalteten Kondensators der Solargenerator im Arbeitspunkt bzw. im Bereich des Arbeitspunktes seiner maxi malen Leistung betrieben wird, daß zur Einstellung des Stromes im Motor des Fahrzeuglüfters und danach zur Übertragung der mit dem Wirkungsgrad multiplizierten Lei stung des Solargenerators 1 an den Motor die von dem Solargenerator erzeugte Energie in einer dem Motor des Fahrzeuglüfters vorgeschalteten Induktivität zwischenge speichert wird, und daß die an dem Motor des Fahrzeuglüfters anliegende Spannung gegenüber der Solargeneratorspannung verkleinert und der Motorstrom gegenüber dem Solargenerator strom vergrößert wird, derart, daß die Anpassung an die Kennlinie des Motors des Fahrzeuglüfters durchgeführt wird. The object is achieved in that by the pulse-width-modulated discharge of a capacitor connected in parallel to the solar generator, the solar generator is operated at the operating point or in the range of the operating point of its maximum output, that for setting the current in the motor of the vehicle fan and then for the transmission of the the efficiency multiplied performance of the solar generator 1 to the motor, the energy generated by the solar generator is temporarily stored in an inductor connected upstream of the motor of the vehicle fan, and that the voltage applied to the motor of the vehicle fan is reduced in relation to the solar generator voltage and the motor current is current in relation to the solar generator is increased such that the adaptation to the characteristic of the motor of the vehicle fan is carried out.
Vorteile der Erfindung sind in der leistungsoptimierten An passung über einen breiten Einstrahlungsbereich und in der Reduzierung der stromabhängigen Verluste durch Verwendung eines Generators mit höherer Nennspannung und kleinerem Nennstrom sowie aufgrund eines in der Nähe des Serienfahr zeuglüfters untergebrachten Abwärtswandlers zu sehen.Advantages of the invention are in the performance-optimized fit over a wide irradiation range and in the Reduction of current-dependent losses through use a generator with a higher nominal voltage and a smaller one Nominal current as well as due to a close to the series production downshift installed on the fan.
Erfindungsgemäß ist das Verfahren auch anwendbar auf Ver braucher allgemeiner Art mit höherer Leistungsaufnahme als von einem Solargenerator bereitgestellter Leistung.According to the invention, the method is also applicable to Ver general needs with higher power consumption than power provided by a solar generator.
Ein DC-DC-Abwärtswandler zur Durchführung des erfindungs gemäßen Verfahrens ist im Unteranspruch 3 beansprucht, während im Anspruch 4 eine Weiterbildung des Abwärtswand lers beschrieben ist.A DC-DC buck converter to perform the Invention the method is claimed in subclaim 3, while in claim 4 a further development of the downward wall lers is described.
In der Zeichnung ist ein Ausführungsbeispiel nach der Er findung dargestellt, und zwar zeigenIn the drawing is an embodiment according to the Er shown invention, namely show
Fig. 1 ein Schaltbild eines Solargenerators, Abwärts wandlers und des Motors eines Fahrzeuglüfters sowie Fig. 1 is a circuit diagram of a solar generator, down converter and the motor of a vehicle fan and
Fig. 2 eine graphische Darstellung eines Solargenera torkennlinienfeldes, in das die Kennlinie eines Serienfahrzeuglüfters eingetragen ist. Fig. 2 is a graphical representation of a Solargenera gate characteristic field, in which the characteristic of a series vehicle fan is entered.
In Fig. 1 ist zwischen einem Solargenerator 1, der vorzugs weise in das zeichnerisch nicht dargestellte Schiebedach eines Kraftfahrzeuges integriert ist, und dem Motor M eines Serienfahrzeuglüfters ein DC-DC-Abwärtswandler 4 geschaltet. In Fig. 1, a DC-DC down converter 4 is connected between a solar generator 1 , which is preferably integrated into the sunroof of a motor vehicle, not shown in the drawing, and the motor M of a series vehicle fan.
Der Abwärtswandler 4 weist einen dem Solargenerator 1 paral lel geschalteten Kondensator C, einen Halbleiterschalter 2, eine Induktivität L und eine Freilaufdiode 3 auf. Die Emit ter-Kollektor-Strecke des pulsbreitenmoduliert angesteuerten Halbleiterschalters 2 liegt zusammen mit der Induktivität L in Serie mit dem Solargenerator 1 und dem Motor M. Zeichne risch nicht dargestellt ist eine Temperaturnachführungsein richtung zum Ausgleich einer temperaturabhängigen Verschie bung der in Fig. 2 dargestellten Solargeneratorkennlinien.The down converter 4 has a capacitor C connected in parallel with the solar generator 1 , a semiconductor switch 2 , an inductance L and a free-wheeling diode 3 . The Emit ter-collector path of the pulse-width modulated controlled semiconductor switch 2 lies together with the inductance L in series with the solar generator 1 and the motor M. Drawing not shown is a temperature tracking device to compensate for a temperature-dependent displacement of the solar generator characteristics shown in FIG. 2 .
Der Abwärtswandler regelt die Spannung UC an dem Kondensa tor C durch pulsbreitenmodulierte Entladung derart, daß der Solargenerator 1 im oder im Bereich des Arbeitspunktes sei ner maximalen Leistung betrieben wird (vgl. Pkte 1a in Fig. 2). Durch Energiezwischenspeicherung in der im Aus gangskreis liegenden Induktivität L stellt sich im Ausgangs kreis und damit im Motor M des Fahrzeuglüfters ein Strom IA ein, der der GleichungThe step-down converter regulates the voltage U C at the capacitor C by pulse-width-modulated discharge in such a way that the solar generator 1 is operated in or in the region of the operating point of its maximum power (cf. points 1a in FIG. 2). Intermediate energy storage in the inductance L in the output circuit results in a current I A in the output circuit and thus in the motor M of the vehicle fan, which corresponds to the equation
IA · UA = IE · UE · ηI A · U A = I E · U E · η
genügt, wobeiis sufficient, whereby
IA = Ausgangsstrom des Abwärtswandlers
UA = Ausgangsspannung des Abwärtswandlers
IE = Eingangsspannung des Abwärtswandlers
UE = Eingangsstrom des Abwärtswandlers und
η = Wirkungsgrad des AbwärtswandlersI A = output current of the step-down converter
U A = output voltage of the step-down converter
I E = input voltage of the step-down converter
U E = input current of the step-down converter and
η = efficiency of the buck converter
bedeuten. Es wird damit die mit dem Wirkungsgrad multipli zierte maximale einstrahlungsabhängige Leistung des Solar generators 1 an den Motor M des Serienfahrzeuglüfters über tragen. mean. It will thus transmit the maximum radiation-dependent power of the solar generator 1 multiplied by the efficiency to the motor M of the series vehicle fan.
Das Prinzip des Abwärtswandlers 4 besteht darin, daß die Ausgangsspannung UA gegenüber der Eingangsspannung UE verkleinert und der Ausgangsstrom IA gegenüber dem Eingangsstrom IE vergrößert wird und hierdurch eine Anpas sung an die Kennlinie des Serienfahrzeuglüfters erfolgt, wobei berücksichtigt ist, daß keine Ausgangsleistungsbe grenzung erforderlich ist (vgl. Pfeil von Pkt. 1a nach Pkt. 5 in Fig. 2).The principle of the step-down converter 4 is that the output voltage U A is reduced compared to the input voltage U E and the output current I A is increased compared to the input current I E , thereby adapting to the characteristic of the series vehicle fan, taking into account that no output power be limitation is required (see arrow from point 1a to point 5 in Fig. 2).
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4017670A DE4017670A1 (en) | 1990-06-01 | 1990-06-01 | Solar driving of production car ventilation fan - using step down converter matching high voltage generator to high current motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4017670A DE4017670A1 (en) | 1990-06-01 | 1990-06-01 | Solar driving of production car ventilation fan - using step down converter matching high voltage generator to high current motor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4017670A1 true DE4017670A1 (en) | 1991-12-05 |
Family
ID=6407616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4017670A Withdrawn DE4017670A1 (en) | 1990-06-01 | 1990-06-01 | Solar driving of production car ventilation fan - using step down converter matching high voltage generator to high current motor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4017670A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9212459U1 (en) * | 1992-09-16 | 1993-01-21 | GOFA Gocher Fahrzeugbau GmbH & CO KG, 4180 Goch | Heatable tank container |
DE4336223C1 (en) * | 1993-10-23 | 1994-09-22 | Webasto Karosseriesysteme | Circuit arrangement for supplying power to a fan and/or battery in a vehicle by means of a solar generator |
DE4419177C1 (en) * | 1994-06-01 | 1995-06-22 | Webasto Karosseriesysteme | Solar roof panel for automobile |
DE19527740C1 (en) * | 1995-06-30 | 1996-12-05 | Webasto Systemkomponenten Gmbh | Circuit arrangement of solar cells |
DE19618039A1 (en) * | 1996-05-04 | 1997-11-06 | Walter Ing Grad Markert | Circuit with temporary store for driving pumps and fans from solar- and/or wind-power-generator |
DE19837862A1 (en) * | 1998-08-20 | 2000-03-02 | Solarc Innovative Solarprodukt | Solar module, especially portable solar module, controlling DC voltage converter in such way, that it is connected to load, if source voltage oversteps predetermined switch-on threshold value |
EP1050955A1 (en) * | 1997-10-30 | 2000-11-08 | NUNUPAROV, Martyn Sergeevich | Method of power supply for electronic systems and device therefor |
DE10019675C1 (en) * | 2000-04-19 | 2001-11-08 | Webasto Vehicle Sys Int Gmbh | Solar system for a vehicle |
WO2006021115A1 (en) * | 2004-08-26 | 2006-03-02 | Abb Schweiz Ag | Device for feeding auxiliary operating devices for a fuel electric vehicle |
WO2006021116A1 (en) * | 2004-08-26 | 2006-03-02 | Abb Schweiz Ag | Device for feeding auxiliary operating devices for a fuel electric vehicle |
DE102007052554A1 (en) | 2007-10-29 | 2009-05-07 | Joachim Schurig | Solar roof-construction for car, has solar cells electrically connected with each other and embedded at upper side facing sun, and at lower side for forming solar foil in flexible plastic, where solar foil is placed on body of roof |
US7777623B2 (en) | 2001-10-11 | 2010-08-17 | Enocean Gmbh | Wireless sensor system |
US9614553B2 (en) | 2000-05-24 | 2017-04-04 | Enocean Gmbh | Energy self-sufficient radiofrequency transmitter |
USRE46499E1 (en) | 2001-07-03 | 2017-08-01 | Face International Corporation | Self-powered switch initiation system |
-
1990
- 1990-06-01 DE DE4017670A patent/DE4017670A1/en not_active Withdrawn
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9212459U1 (en) * | 1992-09-16 | 1993-01-21 | GOFA Gocher Fahrzeugbau GmbH & CO KG, 4180 Goch | Heatable tank container |
DE4336223C1 (en) * | 1993-10-23 | 1994-09-22 | Webasto Karosseriesysteme | Circuit arrangement for supplying power to a fan and/or battery in a vehicle by means of a solar generator |
US5479557A (en) * | 1993-10-23 | 1995-12-26 | Webasto Karosseriesysteme Gmbh | Circuit arrangement for power supply of a fan and/or battery by solar generator in a motor vehicle |
DE4419177C1 (en) * | 1994-06-01 | 1995-06-22 | Webasto Karosseriesysteme | Solar roof panel for automobile |
US5545261A (en) * | 1994-06-01 | 1996-08-13 | Webasto Karosseriesysteme Gmbh | Solar roof for motor vehicles |
EP0685363B1 (en) * | 1994-06-01 | 1998-09-16 | WEBASTO KAROSSERIESYSTEME GmbH | Solar roof for vehicles |
DE19527740C1 (en) * | 1995-06-30 | 1996-12-05 | Webasto Systemkomponenten Gmbh | Circuit arrangement of solar cells |
DE19618039A1 (en) * | 1996-05-04 | 1997-11-06 | Walter Ing Grad Markert | Circuit with temporary store for driving pumps and fans from solar- and/or wind-power-generator |
EP1050955A4 (en) * | 1997-10-30 | 2001-06-27 | Martyn Sergeevich Nunuparov | Method of power supply for electronic systems and device therefor |
EP1050955A1 (en) * | 1997-10-30 | 2000-11-08 | NUNUPAROV, Martyn Sergeevich | Method of power supply for electronic systems and device therefor |
DE19837862A1 (en) * | 1998-08-20 | 2000-03-02 | Solarc Innovative Solarprodukt | Solar module, especially portable solar module, controlling DC voltage converter in such way, that it is connected to load, if source voltage oversteps predetermined switch-on threshold value |
DE19837862C2 (en) * | 1998-08-20 | 2002-11-14 | Solarc Innovative Solarprodukt | solar module |
DE10019675C1 (en) * | 2000-04-19 | 2001-11-08 | Webasto Vehicle Sys Int Gmbh | Solar system for a vehicle |
US6525507B2 (en) | 2000-04-19 | 2003-02-25 | Webasto Vehicle Systems International Gmbh | Solar system for a motor vehicle |
US9887711B2 (en) | 2000-05-24 | 2018-02-06 | Enocean Gmbh | Energy self-sufficient radiofrequency transmitter |
US9614553B2 (en) | 2000-05-24 | 2017-04-04 | Enocean Gmbh | Energy self-sufficient radiofrequency transmitter |
USRE46499E1 (en) | 2001-07-03 | 2017-08-01 | Face International Corporation | Self-powered switch initiation system |
US7777623B2 (en) | 2001-10-11 | 2010-08-17 | Enocean Gmbh | Wireless sensor system |
WO2006021116A1 (en) * | 2004-08-26 | 2006-03-02 | Abb Schweiz Ag | Device for feeding auxiliary operating devices for a fuel electric vehicle |
US7675191B2 (en) | 2004-08-26 | 2010-03-09 | Abb Schweiz Ag | Device for the feeding of auxiliary operating facilities for a fuel-electrically driven vehicle |
US7547982B2 (en) | 2004-08-26 | 2009-06-16 | Abb Schweiz Ag | Device for the feeding of auxiliary operating facilities for a fuel-electrically driven vehicle |
WO2006021115A1 (en) * | 2004-08-26 | 2006-03-02 | Abb Schweiz Ag | Device for feeding auxiliary operating devices for a fuel electric vehicle |
DE102007052554A1 (en) | 2007-10-29 | 2009-05-07 | Joachim Schurig | Solar roof-construction for car, has solar cells electrically connected with each other and embedded at upper side facing sun, and at lower side for forming solar foil in flexible plastic, where solar foil is placed on body of roof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: DEUTSCHE AEROSPACE AG, 8000 MUENCHEN, DE |
|
8139 | Disposal/non-payment of the annual fee |