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WO2003008793A2 - Vehicule - Google Patents

Vehicule Download PDF

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Publication number
WO2003008793A2
WO2003008793A2 PCT/EP2002/006871 EP0206871W WO03008793A2 WO 2003008793 A2 WO2003008793 A2 WO 2003008793A2 EP 0206871 W EP0206871 W EP 0206871W WO 03008793 A2 WO03008793 A2 WO 03008793A2
Authority
WO
WIPO (PCT)
Prior art keywords
fuel cell
cell device
motor vehicle
vehicle
electrical
Prior art date
Application number
PCT/EP2002/006871
Other languages
German (de)
English (en)
Other versions
WO2003008793A3 (fr
Inventor
René VAN DOORN
Jens Arik Almkermann
Original Assignee
Audi Ag
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 Audi Ag filed Critical Audi Ag
Publication of WO2003008793A2 publication Critical patent/WO2003008793A2/fr
Publication of WO2003008793A3 publication Critical patent/WO2003008793A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04955—Shut-off or shut-down of fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00—Structural combinations of different types of electrochemical generators
    • H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
    • H01M16/006—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers of fuel cells with rechargeable batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M2008/1293—Fuel cells with solid oxide electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/30—The power source being a fuel cell
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the invention relates to a motor vehicle, with an internal combustion engine and a vehicle supply system for the electrical energy supply of at least one electrical consumer, according to the preamble of claim 1.
  • a motor vehicle with the features of claim 1 is proposed, which is characterized in that the vehicle supply system has a fuel cell device. This makes it possible, alternatively or in addition to one or more vehicle batteries, to ensure a relatively efficient energy supply for electrical consumers in the motor vehicle by means of the fuel cell device.
  • the fuel cell device has a fuel processing unit and a membrane fuel cell.
  • a fuel cell device can be used to generate electric current from hydrogen separated from the fuel carried along.
  • the fuel cell device can also contain a high-temperature solid oxide fuel cell.
  • a fuel cell device allows Use of combustion engine fuels for direct electricity generation in motor vehicles.
  • the fuel cell device can advantageously be activated and deactivated by means of a central control device. This enables flexible integration of the fuel cell device into the active electrical vehicle supply system, in particular in a manner adapted to the vehicle operation.
  • electrical consumers of the motor vehicle can be operatively connected directly to the fuel cell device or indirectly, with the interposition of one or more vehicle batteries, with the same.
  • the vehicle supply system advantageously additionally contains at least one vehicle battery.
  • the electrical consumers of the motor vehicle can thus be supplied with electricity by means of one or more vehicle batteries and using the fuel cell device. It may be possible to design the vehicle battery to be relatively small and / or to provide fewer vehicle batteries in the motor vehicle.
  • the fuel cell device is operatively connected to the vehicle battery for its continuous or temporary charging.
  • the battery can be charged as required with the internal combustion engine switched off and / or with the internal combustion engine running.
  • the vehicle battery can represent an energy buffer, it being able to be charged, for example, independently of the internal combustion engine operation and adapted to the respective electrical energy requirement in the motor vehicle by means of the fuel cell device.
  • Such a battery buffer permits a design of the fuel cell device which is lower in relation to the nominal power, and which can therefore also be made more compact and lighter.
  • the vehicle battery can also be operatively connected in parallel with the fuel cell device with respect to one or more electrical consumers.
  • the vehicle battery and / or the fuel cell device for the electrical energy supply of the consumer can advantageously be connected to the electrical vehicle supply system by means of a central control device.
  • a sole connection of the vehicle battery for the electrical energy supply is necessary in particular for bridging a relatively short period of time until the fuel cell device is ready for operation, in order to start for the first time to enable the motor vehicle in the form of a cold start. Due to the now possible connection (activation) of the fuel cell device, the vehicle battery can be made significantly smaller and lighter than a traditional starter battery.
  • the vehicle battery for the electrical energy supply to the consumer can advantageously be connected in parallel and / or in series with respect to the fuel cell device by means of a central control device. This enables a particularly flexible energy supply to a plurality of different electrical consumers in a motor vehicle.
  • the vehicle battery is advantageously interposed with respect to the fuel cell device and the electrical consumer.
  • the vehicle battery represents an energy buffer in the electrical vehicle supply system.
  • auxiliary device is understood to mean a functional unit that is only temporarily or possibly activatable or supplementary to at least one further device (vehicle battery).
  • a motor control system for, in particular, automated switching off and switching on the internal combustion engine, the fuel cell device for supplying energy to the electrical consumer being activatable when the internal combustion engine is switched off by means of the motor control system.
  • Such an engine control system is used to reduce the fuel consumption of an internal combustion engine of a motor vehicle when idling or when coasting.
  • the internal combustion engine is switched off in a controlled manner by means of a suitable engine control system at defined operating points, in which no mechanical power has to be delivered by the internal combustion engine, and is restarted at a later point in time — if appropriate by specification of the driver — by means of the same engine control system.
  • Such an operating point can be present, for example, when the internal combustion engine is stationary.
  • Engine control systems of this type are, for example, as an automatic swing utilization system or as an “automatic start-stop” (“start-stop Disadvantageously, switching off the internal combustion engine also influences the functioning of other vehicle components, such as, for example, a power steering or a brake booster, the correct functioning of which depends on an operating vacuum generated by the internal combustion engine. Furthermore, the alternator of the vehicle is also at a standstill of the internal combustion engine out of operation, so that the electrical vehicle consumers must be operated by means of the intended vehicle battery, which has a negative effect on the design of one or more vehicle batteries to cover the present electrical energy requirements of the motor vehicle given the relatively high number of electricity consumers in a modern motor vehicle.
  • the fuel cell device By means of the fuel cell device it is now possible to produce a so-called "on-board current" in a manner which is more economical than a generator driven by the internal combustion engine. This is particularly important because the number of electrical consumers in a vehicle - for example in the form of comfort electronics in luxury vehicles ("mobile office", stationary air conditioning, etc.) The efficiency of a traditional alternator is only about 1% (driving operation of the motor vehicle) to a maximum of 8%, whereas a fuel cell device can advantageously be operated with an efficiency of about 40%.
  • start-stop automatic can thus switch off the internal combustion engine at any time without restriction, in particular to reduce fuel consumption, when the motor vehicle does not need drive torque, while at the same time using the fuel cell device a reliable and sufficient electrical energy supply of functionally relevant functional components / Systems is guaranteed.
  • an undesired change in the mode of operation of the brake, steering, etc. of the motor vehicle when the internal combustion engine is switched off can now be avoided, so that safe and satisfactory handling of the motor vehicle is always ensured with “automatic start-stop”.
  • the figure shows a schematic representation of an internal combustion engine 11 of a motor vehicle (not shown).
  • the motor vehicle has an engine control system 13 for the automated shutdown and activation of the internal combustion engine 11.
  • Such a motor control system 13 is also known as a "start-stop control”.
  • the internal combustion engine 11 can be switched on by means of a starter 15.
  • the motor vehicle contains a vehicle battery 17 for supplying energy to electrical consumers 19.
  • a fuel cell device 21 is also provided, which to ensure a sufficient power supply to the electrical consumers 19 when the internal combustion engine 11 is switched off by means of the engine control system 13.
  • the engine control system 13 is in operative operative connection with the internal combustion engine 11, the starter 15, the vehicle battery 17, the consumers 19 and the fuel cell device 21 (arrows 23 , 24, 25)
  • Arrow 27 indicates the possible electrical energy supply of the starter 15 by means of the vehicle battery 17, while the dashed arrow 26 indicates a possibly discontinuous electrical energy supply to the consumers 19 by means of the vehicle battery e 17 shown.
  • the electrical consumers 19 are also operatively connected to the starter 15 (double arrow 29).
  • the fuel cell device 21 is suitable for charging the vehicle battery 17 as required (arrow 28).
  • the fuel cell device 21 is not operatively connected directly to the electrical consumers 19 for their energy supply, but rather only through the interposed vehicle battery 17, which thus represents an intermediate buffer in the electrical vehicle supply system.
  • a much higher overall efficiency for energy supply can be achieved by means of a direct supply to consumers by means of a fuel cell device and without the interposition of a vehicle battery.
  • the use of a vehicle battery as an intermediate buffer is preferably only intended for bridging, for example, a brief malfunction of the fuel cell device or also for very high demand flows, during cold starts and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Fuel Cell (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un véhicule entraîné par un moteur à combustion (11) et équipé d'un système d'alimentation électrique pour alimenter au moins un consommateur électrique (19) du véhicule. L'invention est caractérisée en ce que ce système d'alimentation comporte un dispositif de piles à combustible (21).
PCT/EP2002/006871 2001-07-09 2002-06-21 Vehicule WO2003008793A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10132558.4 2001-07-09
DE10132558A DE10132558A1 (de) 2001-07-09 2001-07-09 Kraftfahrzeug mit einem Verbrennungsmotor und einem Fahrzeugversorgungssystem zur elektrischen Energieversorgung mindestens eines elektrischen Verbrauchers

Publications (2)

Publication Number Publication Date
WO2003008793A2 true WO2003008793A2 (fr) 2003-01-30
WO2003008793A3 WO2003008793A3 (fr) 2003-09-18

Family

ID=7690680

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/006871 WO2003008793A2 (fr) 2001-07-09 2002-06-21 Vehicule

Country Status (2)

Country Link
DE (1) DE10132558A1 (fr)
WO (1) WO2003008793A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007113507A1 (fr) * 2006-03-31 2007-10-11 The University Of Sussex Système d'alimentation en énergie
EP1832465A3 (fr) * 2006-03-09 2014-07-30 Bayerische Motoren Werke Aktiengesellschaft Véhicule motorisé comprenant un moteur à combustion interne et une centrale électrique auxiliaire de piles à combustible pour son fonctionnement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10328209A1 (de) * 2003-06-24 2005-01-13 Conti Temic Microelectronic Gmbh Bordnetz eines Kraftfahrzeugs
FR2874135B1 (fr) * 2004-08-03 2008-08-29 Renault Sas Procede de charge d'une batterie pour vehicule automobile et dispositif permettant la mise en oeuvre du procede
DE102006012290B4 (de) * 2006-03-17 2020-10-22 Man Truck & Bus Se Stromversorgungseinrichtung eines Nutzfahrzeugs
DE102006032881A1 (de) * 2006-07-15 2008-01-17 Daimler Ag Batterielose Bordnetzversorgung im Kfz
DE102008037190B4 (de) * 2008-08-11 2019-01-31 Mahle International Gmbh Energieversorgungsvorrichtung, Kraftfahrzeug und Verfahren zur Versorgung eines derartigen Kraftfahrzeugs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19523109C2 (de) * 1995-06-26 2001-10-11 Daimler Chrysler Ag Kraftfahrzeug mit Brennkraftmaschine und einem Stromerzeugungssystem
DE19703171A1 (de) * 1997-01-29 1998-08-06 Bayerische Motoren Werke Ag Fahrzeug mit einem Antriebs-Verbrennungsmotor
DE19932781C2 (de) * 1999-07-14 2003-07-24 Daimler Chrysler Ag Verfahren und Schaltungsanordnung zur Versorgung eines Bordnetzes eines Kraftfahrzeugs mit elektrischer Energie

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1832465A3 (fr) * 2006-03-09 2014-07-30 Bayerische Motoren Werke Aktiengesellschaft Véhicule motorisé comprenant un moteur à combustion interne et une centrale électrique auxiliaire de piles à combustible pour son fonctionnement
WO2007113507A1 (fr) * 2006-03-31 2007-10-11 The University Of Sussex Système d'alimentation en énergie
WO2007113509A1 (fr) * 2006-03-31 2007-10-11 The University Of Sussex Procédés et appareils destinés à être utilisés avec un système d'alimentation en énergie

Also Published As

Publication number Publication date
DE10132558A1 (de) 2003-01-30
WO2003008793A3 (fr) 2003-09-18

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