EP1997168A1 - Système d'accumulation d'énergie - Google Patents

Système d'accumulation d'énergie

Info

Publication number
EP1997168A1
EP1997168A1 EP07721940A EP07721940A EP1997168A1 EP 1997168 A1 EP1997168 A1 EP 1997168A1 EP 07721940 A EP07721940 A EP 07721940A EP 07721940 A EP07721940 A EP 07721940A EP 1997168 A1 EP1997168 A1 EP 1997168A1
Authority
EP
European Patent Office
Prior art keywords
energy storage
current
limiting component
storage system
short
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Withdrawn
Application number
EP07721940A
Other languages
German (de)
English (en)
Inventor
Peter Birke
Axel Rudorff
Michael Keller
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.)
Temic Automotive Electric Motors GmbH
Original Assignee
Temic Automotive Electric Motors GmbH
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 Temic Automotive Electric Motors GmbH filed Critical Temic Automotive Electric Motors GmbH
Publication of EP1997168A1 publication Critical patent/EP1997168A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • 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

Definitions

  • the invention relates to an energy storage system with an energy storage.
  • the hybrid drive of a motor vehicle is the combination of different drive principles or different energy sources for a drive application within an application.
  • the combustion engine can stop at standstill
  • hybrid system is possible as a mild hybrid, when an alternative drive form only serves to support the main drive form.
  • a full hybrid is the version of a hybrid system in which each of the available drive forms is capable of autonomous action.
  • a further increase of the hybrid system is realized in the so-called power hybrid.
  • a variant of the hybrid vehicle is a combination of a
  • the internal combustion engine with one or more electric motors running.
  • the internal combustion engine can be operated in hybrid drive in a very low efficiency range. Any surplus energy is used by a generator for the electrical charging of the battery. At the
  • Accelerating combustion engine and electric motor work together. With the same acceleration achieved so can a smaller internal combustion engine can be provided.
  • the reduction of the internal combustion engine compensates in part for the additional weight of the hybrid units.
  • a hybrid vehicle has at least one energy store.
  • the energy from this energy storage can be used to start the engine, for the electrical consumers in the vehicle and for driving.
  • recuperation During braking and coasting, part of the braking energy is fed back into the battery, called recuperation. Especially in city traffic and when driving downhill, recovery helps reduce fuel consumption. Another advantage of this design is that it can be dispensed with a conventional starter, since the electric motor can take over this function.
  • An internal combustion engine delivers high torque in an elevated speed range.
  • the electric motor on the other hand, already provides the maximum torque during start-up and allows the torque to decrease at higher speeds.
  • the torque curves complement each other in an advantageous manner and the vehicle can accelerate in current interpretations by about 10% to 30% faster.
  • the hybrid vehicle has a gasoline engine and an electric motor, which are coupled to the drive axle via a planetary gearing.
  • driving with constant load drives only the gasoline engine, the vehicle while the energy storage is simultaneously charged by the gasoline engine via the generator. At heavier load, the vehicle is driven jointly by both engines. During engine braking, energy can be recuperated.
  • the energy savings compared to gasoline-powered vehicles of the same vehicle class are up to 30%, depending on the driving cycle.
  • a version with a recharging option on the power grid and a larger electrical range has so far only been realized as a prototype (plug-in hybrid).
  • the drive of the hybrid vehicle in addition to the gasoline engine comprises two electric motors, one on the front and on the rear axle.
  • the overall performance of such a model can currently be over 300 kW, the power distribution being designed, for example, such that the gasoline engine contributes 47% to the total power, the electric motor, which drives the front axle, 38%, as well as the rear axle Electric motor 15%.
  • the engine power can not be added because the battery can only give a limited power.
  • Another design of the drive system provides that the electric motor is not seated on an axle, but is coupled to a drive train between the engine and the transmission.
  • the electric motor In order for the electric machine to perform a function as an electric drive, it must obtain the necessary electrical energy from an energy store. The energy storage must be charged constantly. The recharging takes place via the mentioned recuperation in braking and coasting mode or via the energy supplied by the internal combustion engine, with high currents occurring.
  • the invention has for its object to provide a Energyspei- chersystem of the type mentioned, which helps to increase the reliability in a hybrid vehicle.
  • This object is achieved according to the invention by associating with the energy store a short-circuit protection element which is connected electrically in series with a current-limiting component.
  • the invention is based on the consideration that due to a malfunction short-circuit currents of several thousand amperes can occur due to the use of a high-energy storage device in an energy storage system of a hybrid vehicle. For example, already in use lithium-ion cells reach short-circuit currents of 2500 amperes.
  • fuses for this purpose are designed predominantly up to a short-circuit current of 2000 amperes. This limitation also applies to other components used in an energy storage system such as contactors or connectors. According to experience, contactors can become clogged or flutter when high currents, such as short-circuit currents, occur.
  • a resistor is advantageously provided as a current-limiting component.
  • the power supply cable of the energy storage advantageously a predetermined, the design of the overall system corresponding to the desired resistance.
  • the electrical cell connector to avoid the inclusion of additional components in the series circuit and thus avoid additional possible sources of error and increased costs, advantageously designed as a current-limiting component with a predetermined design-related nominal resistance.
  • the current-limiting component expediently has a corresponding non-linear resistance characteristic over the temperature.
  • an inductance is advantageously provided as a current-limiting component.
  • the advantages achieved by the invention are in particular that the reliability of the hybrid vehicle is significantly increased by the fact that reliably triggers a fuse, for example, by combining a passive with a current-limiting component.
  • the current must be kept in a range above a predetermined value, which represents the threshold for triggering the fuse.
  • cheaper dimensioned and less expensive components can be used in the energy storage system.
  • the vehicle electrical system 1 of a motor vehicle usually exhibits the following current profile:
  • This generator supplies the electrical energy for the entire electrical system. This includes a number of consumers 6.
  • the electrical energy which is not required for the operation of the motor vehicle and the associated consumers 6 is fed into the energy storage system 8 for later use in the energy storage system 8.
  • the energy storage 8 of the energy storage system 10 is designed with a particularly high capacity to store the necessary electrical energy for the operation of the hybrid vehicle with the electric motor 12 and to keep it on call.
  • the electrical energy is passed from the energy storage system 10 via a fuse 14 so that, for example, short circuit currents can not get into the electrical system 1 and / or to the consumers 6.
  • a fuse 14 instead of a fuse 14, a combination of a fuse and a contactor can be used.
  • a contactor is operated with low resistance, therefore the limitation of a possibly occurring short-circuit current is very important. If a higher current flows to the contactor, this can cause fluttering and, in the worst case, the contactor sticking together.
  • a resistor 16 is introduced, which effectively limits a possibly occurring short-circuit current, so that the intended fuse triggers reliable.
  • the resistor 16 acts as a current-limiting component.
  • an inductance can be integrated into the circuit at this point in the course of the electrical system 1, ie in series with the fuse 14, since this inductance only absorbs the peak of a short-circuit current, the so-called peak, but otherwise the flowing currents not limited how an ohmic resistor 16 would do this. Since a short-circuit current, which can be up to 2000 amperes, in special design-related cases even more, usually occurs in a time interval of only a few hundredths of a second, it is sufficient to maintain the reliability of the hybrid vehicle, if only the said peaks of possibly occurring short-circuit currents are avoided, so that the inductance is aligned exclusively on the prevention of damaging short-circuit current.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un système d'accumulation d'énergie (10) comprenant un accumulateur d'énergie (8) auquel est associé un élément de protection contre les courts-circuits, ce système devant permettre d'augmenter la sécurité de fonctionnement dans un véhicule hybride. Pour ce faire, conformément à l'invention, l'élément de protection contre les courts-circuits est branché électriquement en série avec un composant limiteur de courant.
EP07721940A 2006-03-20 2007-02-21 Système d'accumulation d'énergie Withdrawn EP1997168A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006013135 2006-03-20
PCT/DE2007/000325 WO2007110015A1 (fr) 2006-03-20 2007-02-21 Système d'accumulation d'énergie

Publications (1)

Publication Number Publication Date
EP1997168A1 true EP1997168A1 (fr) 2008-12-03

Family

ID=38267624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07721940A Withdrawn EP1997168A1 (fr) 2006-03-20 2007-02-21 Système d'accumulation d'énergie

Country Status (4)

Country Link
US (1) US20090052104A1 (fr)
EP (1) EP1997168A1 (fr)
DE (1) DE112007000043A5 (fr)
WO (1) WO2007110015A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008010823A1 (de) * 2008-02-23 2009-08-27 Daimler Ag Batterie mit mehreren einen Zellverbund bildenden Flachzellen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680527A (en) * 1986-08-06 1987-07-14 Motorola, Inc. Electrical battery including apparatus for current sensing
US5394094A (en) * 1993-05-13 1995-02-28 Industrial Scientific Corporation Portable gas sensor utilizing fault protective battery cap
US5633573A (en) * 1994-11-10 1997-05-27 Duracell, Inc. Battery pack having a processor controlled battery operating system
US6331763B1 (en) * 1998-04-15 2001-12-18 Tyco Electronics Corporation Devices and methods for protection of rechargeable elements
KR20010103998A (ko) * 2000-05-12 2001-11-24 이계안 하이브리드 전기 자동차의 누전 차단장치 및 그 제어방법
US6664762B2 (en) * 2001-08-21 2003-12-16 Power Designers, Llc High voltage battery charger
US6879140B2 (en) * 2002-09-26 2005-04-12 Mks Instruments, Inc. Power holdup circuit
JP4254227B2 (ja) * 2002-11-28 2009-04-15 ソニー株式会社 バッテリーパック

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007110015A1 *

Also Published As

Publication number Publication date
WO2007110015A1 (fr) 2007-10-04
US20090052104A1 (en) 2009-02-26
DE112007000043A5 (de) 2008-07-03

Similar Documents

Publication Publication Date Title
DE102015121946B4 (de) Fahrzeugantriebsstrang
EP2460253B1 (fr) Circuit pour un réseau de bord
DE10121962A1 (de) Energiemanagementsystem für ein elektrisches Kraftfahrzeugbordnetz
DE102010062249A1 (de) Vorrichtung zur Verwendung in einem elektrischen Antriebssystem und Verfahren zum Betrieb einer solchen
EP1593188A1 (fr) Dispositif pour alimenter en energie un systeme electrique bitension d'un vehicule
DE102011000665A1 (de) Stromversorgung für Fahrzeuge
DE102013204894A1 (de) Kraftfahrzeugbordnetz mit wenigstens zwei Energiespeichern, Verfahren zum Betreiben eines Kraftfahrzeugbordnetzes und Mittel zu dessen Implementierung
DE102012017674A1 (de) Kraftfahrzeug mit einem Mehrspannungs-Bordnetz und zugehöriges Verfahren
DE102010001250A1 (de) Elektrisches Bordnetz sowie Verfahren zum Betreiben eines elektrischen Bordnetzes
DE102013014151A1 (de) Leistungsquellenvorrichtung für ein Fahrzeug, Steuerungs- bzw. Regelungsverfahren dafür und Computerprogrammprodukt
DE102012203467A1 (de) Bordnetz für ein Fahrzeug
DE102008040810A1 (de) Elektrisches Bordnetzsystem
DE102006011167A1 (de) Hydrostatisch-elektrischer Antrieb
DE102018212533A1 (de) Versorgungseinrichtung mit einer Brennstoffzelleneinrichtung und Verfahren zur Spannungssenkung bei einer Brennstoffzelleneinrichtung
DE102015006280A1 (de) Fahrzeug und elektrische Antriebsvorrichtung für ein Fahrzeug
DE19956935A1 (de) Verfahren zur Leistungsverteilung
WO2007110015A1 (fr) Système d'accumulation d'énergie
DE102020101527A1 (de) Versorgungseinrichtung, Brennstoffzellenfahrzeug und Verfahren zur Spannungsbegrenzung bei einer Versorgungseinrichtung
DE10021155C1 (de) Bordnetz eines Kraftfahrzeugs
DE102004001025B3 (de) Kraftfahrzuegbordnetz mit zwei Energiespeichern
DE102015012047A1 (de) Verfahren zum Starten eines Brennstoffzellensystems
DE102009024376B4 (de) Bordnetz für ein Kraftfahrzeug, Kraftfahrzeug und Verfahren zum Betreiben eines Bordnetzes
WO2007110011A1 (fr) Vehicule hybride
DE102014111515A1 (de) Verfahren zum Betrieb eines Hybrid-Fahrzeugs und Hybrid-Fahrzeug
EP1077828A1 (fr) Procede de commande d'une automobile avec un mecanisme d'entrainement electrique

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080320

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: RUDORFF, AXEL

Inventor name: BIRKE, PETER

Inventor name: KELLER, MICHAEL

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR

17Q First examination report despatched

Effective date: 20090616

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20091010