EP3377364A2 - Système de batterie - Google Patents

Système de batterie

Info

Publication number
EP3377364A2
EP3377364A2 EP16798142.2A EP16798142A EP3377364A2 EP 3377364 A2 EP3377364 A2 EP 3377364A2 EP 16798142 A EP16798142 A EP 16798142A EP 3377364 A2 EP3377364 A2 EP 3377364A2
Authority
EP
European Patent Office
Prior art keywords
supply line
battery
battery system
electrical
resistance
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Withdrawn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
EP16798142.2A
Other languages
German (de)
English (en)
Inventor
Daniel MOOSMANN
Andreas HAMMA
Robert Hasenfratz
Markus Ostler
Daniel Lopez
Matthias Reckermann
Darius Mateja
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.)
Marquardt GmbH
Original Assignee
Marquardt 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 Marquardt GmbH filed Critical Marquardt GmbH
Publication of EP3377364A2 publication Critical patent/EP3377364A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for DC systems
    • 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
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/20—Inrush current reduction, i.e. avoiding high currents when connecting the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for DC applications

Definitions

  • the invention relates to a battery system according to the preamble of patent claim 1.
  • Such battery systems are used in particular in a motor vehicle.
  • Such a battery system is used to supply energy to a consumer.
  • Battery system has at least one battery and / or battery cell.
  • the consumer is in electrical connection with the battery and / or battery cell via a supply line.
  • a switchable electromechanical component such as an electrical switch, a relay, a contactor o. The like.
  • the invention has for its object to further develop the battery system such that the reliability is improved.
  • an electrical resistance is electrically connected in parallel to the electromechanical component in the manner of a resistance bypass. As it turns out, the resistance bypass reduces the load on the
  • the consumer has an electrical capacity.
  • the electrically connected in parallel to the electromechanical component in the manner of a resistance bypass electrical resistance allows pre-charging of the capacitor by the capacity is charged via the electrical resistance before switching on the electromechanical component for switching the supply line to the consumer.
  • the charging of the capacitor via the electrical resistance can be switched by means of a, in particular controllable, electrical switch.
  • Resistor circuit arrangement of at least two resistors can be arranged in the manner of an array.
  • Resistor circuitry can be selected. The resistances of the
  • Resistor circuitry can be made of SMD (Surface Mounted Device) components, so that the resistance circuitry can be produced in a simple and cost-effective manner. In particular, advantageously no expensive precision and / or power resistors are required.
  • SMD Surface Mounted Device
  • the resistors of the resistance circuit arrangement can be arranged on a printed circuit board.
  • the heat sink may be a metal body such as an aluminum plate.
  • the circuit board for the resistance circuit arrangement may be a high-current circuit board suitable for electrical power currents.
  • a housing for the battery and / or battery cell can be provided.
  • Resistor circuitry may be located in the housing.
  • the heat sink which is in thermal communication with the printed circuit board, can protrude out of the housing.
  • the resistor array can be equipped in a further embodiment with SMD components and / or arranged on a standardized circuit board. This one has all
  • the PCB assembly can be manufactured using standard processes.
  • the electrical connection technology has defined contact resistance
  • the thermal management can be implemented well and / or product-specific in a simple manner.
  • the resistance values can be easily adapted to the respective battery system.
  • An energy supply system for consumers serving battery system in more
  • Embodiment has at least one battery and / or battery cell.
  • the battery and / or battery cell is a distributor via a main supply line in electrical connection. From the distributor lead at least two supply lines to the
  • the battery system should therefore be further developed so that the space is reduced.
  • the fuse element includes a power meter associated with the supply line.
  • a power meter associated with the supply line.
  • the fuse element can thus be dispensed with the previous large-scale fuse wire fuse, which advantageously also additionally cost-effective.
  • the securing element may further comprise an electromechanical component for switching the supply line.
  • the electromechanical component can be an electrical switch, a relay, a contactor or the like. Appropriately, then the current measuring element switches when exceeding a limit value for the measured current, the electromechanical component, so that the supply line is interrupted. In other words, the associated
  • the current measuring element can be a Hall sensor for measuring the electric current flowing through the supply line, which operates advantageously functionally and reliably.
  • the Hall sensor may be configured in the manner of an integrated circuit.
  • the main supply line may be located in the main supply line a main fuse. Due to the high total current flowing in the main supply line, which comprises the sum of the currents flowing in the individual supply lines, it may be appropriate for the main fuse to be a fuse. For a particularly preferred embodiment of the battery system according to the invention is to be determined below.
  • the fuses have an electrical resistance that produces power loss, ie heat. This resistance is required for the fuses to perform their function according to the guidelines. For this purpose, the electrical resistance and the heat are necessary until the melting point in the fuse wire, the heat is generated by the electric current flow. However, two fuses in series can create dangerous conditions. An arc in a fuse limits the flowing electrical current. This changes that
  • the idea is to replace the split fuses with smaller tripping values by a current measuring system after the main fuse.
  • the electrical current can be detected and a switching element can switch off the "normal short circuits" in a supply line.
  • the main fuse is then responsible only for the "worst case scenario".
  • the "worst case” can be more than 10,000 A. This current can then no longer switch off an electrical switch reliably, so that the main supply line with a
  • Fused fuse element is secured.
  • the smaller fuses are no longer required after the main fuse. Rather, they are replaced by a current measuring system, z. B. by a non-contact Hall sensor measuring system.
  • the main circuit then separates only the main fuse, if an enormous short circuit occurs.
  • the output fuses are monitored by integrated circuits.
  • the battery system according to the invention only requires a significantly reduced space.
  • the battery system according to the invention has a significantly reduced weight.
  • the battery system according to the invention has a reduced CCte output.
  • the battery system according to the invention has a significant cost advantage.
  • a serving for supplying energy to a consumer battery system in a further embodiment has at least one battery and / or battery cell. Over a
  • Supply line is the consumer with the battery and / or battery cell in electrical connection.
  • a triggering in case of electrical overload fuse element is arranged in the supply line. So far, this fuse element consists of a fuse, which is subject to aging, so that the reliability is impaired.
  • the battery system should therefore be further developed so that the reliability is improved.
  • the fuse element comprises a switchable electromechanical component for switching the supply line, so that by means of the electromechanical component in the overload case interrupting the Supply line is enabled.
  • the fuse element can thus be dispensed with the previous age-prone fuse wire fuse, which is also advantageous for the thermal management of the battery system.
  • the switchable electromechanical component may comprise two fixed contacts and a switching contact for switchable bridging of the fixed contacts.
  • the supply line can be in electrical connection with the fixed contacts. Conveniently, it may be the switchable electromechanical component to an electrical switch, a relay, a contactor o. The like. For switching the supply line.
  • the switchable electromechanical component can be dimensioned for the expected short-circuit current in the supply line. Namely, the dimensioning can be such that the switchable electromechanical component upon reaching the short-circuit current, the shutdown to interrupt the
  • the switchable electromechanical component can be dimensioned for the maximum expected short-circuit current in the supply line.
  • Supply line can be switched off functionally reliable.
  • Fuse elements in the form of fuses Conventional fuses have an electrical resistance that produces power dissipation, especially in the form of heat. This resistance is required for fuses to perform their function according to the guidelines. For this purpose, the electrical resistance and / or the heat until the melting point in the fuse wire is required, which is caused by the electric current flow.
  • the inventive idea is to improve the existing solution with security elements by a very simple, yet innovative solution.
  • the fuses are replaced by a switching element that only has to perform the switching once, i. the switching element takes over the fuse task. This can be done with a relay and / or with a contactor as a switching element, wherein the switching element for the maximum short-circuit current specified.
  • BJB Battery Junction Box
  • the previous fuse is no longer required.
  • a specified separator ensures the disconnection of the battery circuit even in critical and / or dangerous situations.
  • a relay or a contactor of this type has a low contact resistance and defused with this physical property, the power loss energy and the associated fuse aging.
  • the thermal management in the electrical distribution system of vehicles is decisively defused. Overall, it is thus possible, the thermal management and / or the
  • the transition areas are secured and / or react even in electrical overcurrents.
  • the temperature can also be used as limit parameter since the temperature is also a measure of the current intensity.
  • the separation system according to the invention is functionally stable.
  • FIG. 1 shows a battery system according to an embodiment in a schematic view
  • FIG. 2 shows a battery system according to another embodiment in a schematic view
  • Fig. 3 shows a battery system with a resistance circuit arrangement according to yet another embodiment as a schematic block diagram
  • FIG. 4 shows the resistor arrangement from FIG. 3 in a detailed view.
  • FIG. 1 shows a battery system 1 according to an embodiment for a motor vehicle.
  • the battery system 1 has at least one battery and / or battery cell 2. With the battery and / or battery cell 2 is a consumer 3 via a supply line 4 in electrical connection. The energy supply for the consumer 3 by the
  • Supply line 4 is further a triggering in case of electrical overload
  • the fuse element 5 comprises a switchable electromechanical component for switching the supply line 4 by means of the electromechanical component 5, the supply line 4 in
  • the switchable electromechanical component 5 comprises two fixed contacts 7, 8 and a switch contact 9 to the switchable
  • the supply line 4 is connected to the fixed contacts 7, 8 at electrical terminals 10, 1 1 of the electromechanical component 5 in electrical connection.
  • the electromechanical component 5 may be an electrical switch, a relay, a contactor o. The like. Act.
  • the electromechanical component 5 is dimensioned for the expected short-circuit current in the supply line 4. And in such a way that the switchable
  • the switchable electromechanical component 5 is further dimensioned for the maximum expected short-circuit current in the supply line 4.
  • the maximum expected short-circuit current in the supply line 4 At least the maximum expected short-circuit current in the
  • Supply line 4 functionally switchable off.
  • Fig. 2 is a battery system 1 according to a further embodiment of a
  • Battery system 1 in turn has at least one battery and / or battery cell 2. With the battery and / or battery cell 2 is a manifold 12 via a main supply line 4 in electrical connection. From the distributor 12 lead at least two
  • Main supply line 4 are a main fuse 15 and a resistor 16 existing shunt. With the help of the shunt 16, a measurement of the current flowing in the main supply line 4 current is made possible.
  • a securing element 17 is arranged in the supply line 13, 14 in turn in each case.
  • the fuse element 17 comprises a power supply element 13, 14 associated current measuring element, so that a previous fuse wire is dispensable.
  • the fuse element 17 may additionally comprise an electromechanical component (not further shown in FIG. 2).
  • the electromechanical component can, as shown for example in FIG. 1, be an electrical switch, a relay, a contactor or the like for switching the supply line 13, 14.
  • the current measuring element 17 then switches on exceeding a limit value for the measured current in the supply line 13, 14, the electromechanical component, so that the electrical voltage in the respective supply line 13, 14 is interrupted.
  • the current measuring element 17 is preferably a Hall sensor for measuring the electrical current flowing through the supply line 13, 14.
  • the Hall sensor 17 may again be designed in the manner of an integrated circuit.
  • the main fuse 15 is preferably a fuse.
  • the main supply line 4 is connected by means of a battery connector 18 to the battery and / or battery cell 2. To connect and / or disconnect the
  • Main supply line 4 is in the main supply line 4, in turn, an electrical switching element 6.
  • the consumer 3 are also connected by means of connectors 19 to the supply line 13, 14.
  • Charging lines 20 are provided for charging the battery and / or battery cell 2, which are connected by means of a charging connector 21 to a charger 22, such as a generator.
  • the charging lines 20 are connected by means of a further electrical switching element 23 and / or switched off.
  • a precharge circuit 24 arranged in parallel to the switching element 6 in the main supply line 4 for precharging electrical capacitances in the consumers 3 is provided.
  • FIG. 3 shows a battery system 1 according to yet another embodiment for a motor vehicle, the closer configuration of the precharge circuit 24 being shown here.
  • the battery system 1 has at least one battery and / or battery cell 2.
  • a consumer 3 is connected to the battery and / or battery cell 2 via a
  • Supply line 4 in electrical connection.
  • a switchable electromechanical component 6 for example, an electrical switch, a Relay, a contactor o. The like., For switching the supply line 4 is arranged.
  • Consumer 3 has an electrical capacity 25.
  • An electrical resistor 26 is electrically connected by means of leads 29 parallel to the electromechanical component 6 in the manner of a resistance bypass, such that a precharging or charging of the capacitor 25 before switching on the electromechanical component 6 for switching the
  • Supply line 4 to the consumer 3 via the electrical resistance 26 is made possible.
  • the pre-charging of the capacitor 25 can be controlled accordingly by the charging via the electrical resistance 26 by means of an electrical switch 30 in the supply line 29 is switchable.
  • the precharge circuit 24 thus comprises the electrical resistance 26 and the associated electrical switch 30.
  • the electrical resistor 26 comprises a resistance circuit arrangement of at least two resistors 26 ', 26 "
  • Resistor circuit arrangement 26 in the present case, a plurality of resistors 26 ', 26 “, 26"', as seen in more detail in Fig. 4.
  • Resistor circuitry 26 is arranged in the manner of an array. In this case, the number of resistors 26 ', 26 ", 26"' is selected according to the size of the desired total electrical resistance for the resistance circuit arrangement 26.
  • resistors 26 ', 26 ", 26"' of the resistor circuitry 26 are made of SMD (Surface Mounted Device) components.
  • SMD Surface Mounted Device
  • Resistor circuitry 26 is disposed on a printed circuit board 27.
  • the resistors 26 ', 26 ", 26"' in production technology simple way to equip the circuit board 27 and then to be soldered by means of the SMD soldering, so that the
  • Resistor circuit arrangement 26 on the one hand has a compact design and on the other hand is particularly functional and reliable.
  • a housing 31 is provided, as shown in FIG. 3 extracts. Furthermore, a heat sink 28 is provided for functionally reliable dissipation of the heat generated in the battery system 1, in particular for the cooling of the components located in the housing 31.
  • the heat sink 28 is made of a metal body, such as an aluminum plate, and is in thermal communication with the circuit board 27. While the resistance circuitry 26 and / or the Circuit board 27 are located in the housing 31 for the resistance circuit assembly 26, the standing with the circuit board 27 in thermal communication heat sink 28 protrudes out of the housing 31, as seen from the Fig. 3.
  • the printed circuit board 27 for the resistor circuitry 26 may be a high current printed circuit board suitable for electrical power currents.
  • the invention is not limited to the described and illustrated embodiments. Rather, it also encompasses all expert developments within the scope of the invention defined by the claims. Thus, the invention can not only be used in motor vehicles but can also be used in all other battery projects and / or systems in which thermal energy is generated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention concerne un système de batterie (1) destiné notamment à un véhicule à moteur, comprenant au moins un élément de batterie et/ou d'accumulateur (2) et un récepteur (3) en connexion électrique avec l'élément de batterie et/ou d'accumulateur (2) par l'intermédiaire d'une ligne d'alimentation (4). La ligne d'alimentation (4) comporte un composant électromécanique (6) commutable tel qu'un commutateur électrique, un relais ou analogue pour réaliser la connexion de la ligne d'alimentation (4). Une résistance électrique (26) est connectée électriquement en parallèle du composant électromécanique (6) à la manière d'une dérivation résistive.
EP16798142.2A 2015-11-17 2016-11-17 Système de batterie Withdrawn EP3377364A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102015014709 2015-11-17
DE102015014946 2015-11-19
DE102015014957 2015-11-20
PCT/EP2016/077926 WO2017085155A2 (fr) 2015-11-17 2016-11-17 Système de batterie

Publications (1)

Publication Number Publication Date
EP3377364A2 true EP3377364A2 (fr) 2018-09-26

Family

ID=57348663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16798142.2A Withdrawn EP3377364A2 (fr) 2015-11-17 2016-11-17 Système de batterie

Country Status (3)

Country Link
EP (1) EP3377364A2 (fr)
DE (3) DE102016013561A1 (fr)
WO (1) WO2017085155A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020205992A1 (de) * 2020-05-13 2021-11-18 Volkswagen Aktiengesellschaft Verfahren zur elektrischen Absicherung eines Bordnetzes eines Kraftfahrzeugs und Kraftfahrzeug

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3968298B2 (ja) * 2002-12-06 2007-08-29 株式会社日立製作所 電源装置
JP5268377B2 (ja) * 2008-01-29 2013-08-21 三洋電機株式会社 車両用の電源装置
JP5675045B2 (ja) * 2008-11-26 2015-02-25 三洋電機株式会社 バッテリシステム
DE102012204965A1 (de) * 2012-03-28 2013-10-02 Robert Bosch Gmbh Batteriesystem, Kraftfahrzeug mit Batteriesystem und Verfahren zur Inbetriebnahme eines Batteriesystems
DE102013214726A1 (de) * 2013-07-29 2015-01-29 Bayerische Motoren Werke Aktiengesellschaft Anordnung zur elektrischen Absicherung eines potentiellen Kurzschlusses bzw. einer Überlast in einem Gleichstromnetz mit systembedingten, variablem Quellinnenwiderstand
US9440601B2 (en) * 2013-09-06 2016-09-13 Johnson Controls Technology Company System for providing voltage measurements of battery cells to a PCB within a battery module

Also Published As

Publication number Publication date
DE102016013561A1 (de) 2017-05-18
DE102016013558A1 (de) 2017-05-18
WO2017085155A3 (fr) 2017-07-13
DE102016013560A1 (de) 2017-05-18
WO2017085155A2 (fr) 2017-05-26

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