WO2017110498A1 - Système de batterie d'accumulateurs - Google Patents

Système de batterie d'accumulateurs Download PDF

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Publication number
WO2017110498A1
WO2017110498A1 PCT/JP2016/086547 JP2016086547W WO2017110498A1 WO 2017110498 A1 WO2017110498 A1 WO 2017110498A1 JP 2016086547 W JP2016086547 W JP 2016086547W WO 2017110498 A1 WO2017110498 A1 WO 2017110498A1
Authority
WO
WIPO (PCT)
Prior art keywords
storage battery
control unit
battery system
rectifying element
power
Prior art date
Application number
PCT/JP2016/086547
Other languages
English (en)
Japanese (ja)
Inventor
正直 島▲崎▼
Original Assignee
カルソニックカンセイ株式会社
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 カルソニックカンセイ株式会社 filed Critical カルソニックカンセイ株式会社
Publication of WO2017110498A1 publication Critical patent/WO2017110498A1/fr

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    • 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
    • B60R16/033—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 characterised by the use of electrical cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • 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
    • 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
    • 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 present invention relates to a storage battery system.
  • Patent Documents 1 and 2 an in-vehicle power supply device that supplies power to an opening / closing means that switches between energization and interruption between an in-vehicle lead storage battery and a lithium ion battery by using only the lead storage battery is known (for example, Patent Documents 1 and 2).
  • An object of the present invention made in view of such circumstances is to provide a storage battery system capable of supplying power to a load even when power supply from one storage battery is cut off.
  • a storage battery system is: A first storage battery; A second storage battery; A switch having a switch control unit and a switching element opened and closed by the switch control unit, and an electrically driven switch;
  • the switch control unit is configured to be able to supply power from both the first storage battery and the second storage battery, and receives power from at least one of the first storage battery and the second storage battery to energize the switching element.
  • a storage battery system includes:
  • the switching element preferably includes a plurality of MOSFETs.
  • a storage battery system is: And a rectifying element having a first rectifying element and a second rectifying element, The first rectifying element is provided in a direction in which power is supplied from the first storage battery to the switch control unit, and the second rectifying element is provided in a direction in which power is supplied from the second storage battery to the switch control unit. It is preferable to be provided.
  • a storage battery system includes: Both the first rectifying element and the second rectifying element are preferably composed of a plurality of rectifying elements.
  • a storage battery system is: Furthermore, it has a control part, a sensor, and a notification part, When the control unit determines that power supply from the second storage battery is impossible based on the current value and the voltage value detected by the sensor connected to the second storage battery, It is preferable to notify the contents of the determination.
  • the switch control unit receives power from at least one of the first storage battery and the second storage battery. For this reason, even if the power supply from the second storage battery is cut off, the switch can be electrically driven by supplying power from the first storage battery to the switch control unit. Thus, it is possible to supply electric power to the load and operate the entire vehicle without stopping it.
  • the switching element includes a plurality of MOSFETs. For this reason, it is possible to distribute the power load.
  • the first rectifying element is provided in a direction in which power is supplied from the first storage battery to the switch control unit, and the second rectifying element is switch-controlled from the second storage battery. It is provided in a direction in which power is supplied to the unit. For this reason, for example, current does not flow from the first storage battery 1 to the second storage battery 2 or from the second storage battery 2 to the first storage battery 1, and power supply to the switch control unit is ensured.
  • each of the first rectifying element and the second rectifying element includes a plurality of rectifying elements. For this reason, a proof pressure can be raised.
  • the control unit can supply power from the second storage battery to other elements based on the current value and the voltage value detected by the sensor connected to the second storage battery.
  • the content of the determination is notified via the notification unit. For this reason, it is possible to notify the driver that an urgent measure of supplying power from the second storage battery to the switch control unit is being performed, and it is possible for the driver to take measures early.
  • FIG. 1 A solid line in FIG. 1 indicates a power line, and a broken line indicates an information transmission line.
  • the storage battery system 10 is mounted on a vehicle such as a hybrid vehicle (HEV vehicle).
  • HEV vehicle hybrid vehicle
  • the storage battery system 10 includes at least a first storage battery 1, a second storage battery 2, and a switch 4, and may further include a sensor 3, a load 5, a control unit 6, and a notification unit 7.
  • the first storage battery 1, the second storage battery 2, the switch 4 and the load 5 are connected in parallel.
  • the first storage battery 1 is, for example, a lithium ion battery.
  • the first storage battery 1 may also be configured by connecting in series one or more secondary batteries (cells) other than a lead storage battery, such as a lithium ion battery or a nickel hydride battery.
  • the positive terminal of the first storage battery 1 is connected to the switch control unit 4a and the switching element 4b, and the negative terminal is connected to the ground.
  • the first storage battery 1 can supply power to a switch control unit 4a described later, and can supply power to the load 5 and the like when a switching element 4b described later is energized.
  • the first storage battery 1 can also supply electric power to an auxiliary machine and an ECU (Engine Control Unit) while the engine drive (idling) is stopped.
  • the first storage battery 1 is connected in parallel with the second storage battery 2.
  • the second storage battery 2 is, for example, a lead storage battery. Although the 2nd storage battery 2 may be the same voltage as the 1st storage battery 1, or a different voltage, when it is a different voltage, a DC / DC converter is used.
  • the positive terminal of the second storage battery 2 is connected to the switch control unit 4a and the switching element 4b, and the negative terminal is connected to the ground.
  • the 2nd storage battery 2 can supply electric power to the switch control part 4a mentioned later.
  • the second storage battery 2 can also supply power to the load 5.
  • the second storage battery 2 is connected in parallel with the first storage battery 1.
  • Sensor 3 is a current sensor and a voltage sensor that detect values of current and voltage flowing through second storage battery 2. The sensor 3 outputs the detected information to the control unit 6.
  • the switch 4 has a switch control unit 4a and a switching element 4b opened and closed by the switch control unit 4a, and is electrically driven.
  • the switch control unit 4a described above is configured to be able to supply power from both the first storage battery 1 and the second storage battery 2.
  • the switch control unit 4 a can receive power from at least one of the first storage battery 1 and the second storage battery 2 and can open and close the switching element 4 b under the control of the control unit 6. That is, even if the power supply from the second storage battery 2 is interrupted for some reason, the switch control unit 4a can continue the opening / closing control of the switching element 4b by receiving the power supply from the first storage battery 1.
  • the aforementioned switching element 4b is connected in series with the first storage battery 1 and the second storage battery 2, and when the switching element 4b is opened (when turned off) by the control of the switch control unit 4a, the first storage battery 1 and the second storage battery 1 are connected. Power to and from the storage battery 2 is cut off.
  • the switching element 4b is closed by the control of the switch control unit 4a (when turned on), the switching element 4b is energized, and a current flows between the first storage battery 1 and the second storage battery 2.
  • the switching element 4b may be opened and closed as follows, for example. That is, the switching element 4b is closed when the voltage of the second storage battery 2 falls below a predetermined value, thereby providing an alternator (not shown, but provided on the side where the first storage battery 1 is connected as viewed from the switch 4) or Charging from the first storage battery 1 to the second storage battery 2 is performed, and overdischarge protection of the second storage battery 2 is performed. Similarly, the switching element 4b prevents the second storage battery 2 from being charged from the alternator or the first storage battery 1 by opening when the voltage of the second storage battery 2 exceeds another predetermined value. 2 overcharge protection.
  • the switching element 4b is composed of one or more MOSFETs (Metal, Oxide, Semiconductor, Field, Effect Transistor).
  • FIG. 2 is an enlarged view of region A in FIG.
  • the switching element 4b includes a plurality of (six) MOSFETs.
  • the switching element 4b is configured by connecting three sets of one set of MOSFETs facing left and right. As the number of the sets increases, the power load can be distributed.
  • the switch control unit 4a and the switching element 4b are connected by a plurality of transistors. The switching element 4b is energized under the control of the switch control unit 4a, and at this time, power supply from the alternator or the first storage battery 1 to the load 5 can be ensured.
  • An alternator is a generator that is mechanically connected to an engine started by a starter.
  • the alternator can generate electricity by driving the engine.
  • the alternator may generate power by regeneration when the vehicle is decelerated or the like.
  • the electric power generated by the alternator may be used for charging the first storage battery 1 and the second storage battery 2 after adjusting the output voltage by a regulator.
  • the load 5 is, for example, an audio, an air conditioner, a navigation system, or the like provided in the vehicle.
  • One end of the load 5 is connected to the sensor 3, the switch control unit 4a and the switching element 4b, and the other end is connected to the ground.
  • the load 5 operates by receiving power supply from the first storage battery 1 and the second storage battery 2 while the engine driving is stopped, and operates by receiving power supply from the alternator, the first storage battery 1 and the second storage battery 2 while driving the engine. To do.
  • the control unit 6 is a processor that includes an ECU provided in a vehicle, for example, and controls the overall operation of the storage battery system 10. For example, the control unit 6 acquires information on the current value and the voltage value from the sensor 3, and when the current value is 0 and the voltage value is 0 (cannot be acquired), the second storage battery 2 transfers to other elements. It is determined that power supply is impossible. For example, the power supply is impossible because the terminal of the second storage battery 2 is disconnected from the storage battery system 10. At this time, the control unit 6 notifies the notification unit 7 that power cannot be supplied from the second storage battery 2 to other elements.
  • control unit 6 controls opening and closing of the switching element 4b via the switch control unit 4a.
  • the notification unit 7 When the notification unit 7 obtains notification that power supply from the second storage battery 2 to other elements is impossible, the notification unit 7 notifies the driver of the vehicle to that effect. Specifically, the notification unit 7 notifies by turning on the lamp. As an alternative example, the notification unit 7 notifies the user that power supply is impossible due to a disconnection of the terminal or the like as a sound or an image output to a vehicle-mounted monitor.
  • the switch controller 4a can receive power from at least one of the first storage battery 1 and the second storage battery 2 to open and close the switching element 4b. Therefore, even if the power supply from the second storage battery 2 is cut off, the power can be supplied from the first storage battery 1 to the switch control unit 4a to open and close the switching element 4b. Accordingly, it is possible to supply electric power to the load 5 and operate the entire vehicle without stopping the system.
  • the control unit 6 notifies the driver via the notification unit 7 that power cannot be supplied from the second storage battery 2 to other elements.
  • FIG. 3 is a diagram showing an operation flow that the control unit 6 executes regularly or irregularly.
  • the control unit 6 can execute this operation flow both when the switching element 4b is open and when it is closed.
  • the control unit 6 determines whether or not the current value detected by the sensor 3 is 0 and the voltage value is 0 (step S1). When Yes in step S1, the control unit 6 determines that power supply from the second storage battery 2 to other elements is impossible (step S2). When No in step S1, the control unit 6 executes step S1.
  • Step S2 the control unit 6 notifies the content of the determination via the notification unit 7 (that is, that it is impossible to supply power from the second storage battery 2 to other elements) (Ste S3).
  • Step S3 the control unit 6 performs open / close control of the switching element 4b via the switch control unit 4a using the power supplied from at least one of the first storage battery 1 or the second storage battery 2 (step S4).
  • step S4 the notification unit 7 executes step S1.
  • the switch control unit 4a can receive power supply from the first storage battery 1 even if power supply from the second storage battery 2 to other elements is impossible.
  • the control unit 6 can notify the driver that power supply from the second storage battery 2 is impossible and can take early measures. . For example, it is desirable for the control unit 6 to promptly retreat the vehicle to a safe place and reconnect the terminals of the second storage battery 2.
  • FIG. 4 is a functional block diagram showing a schematic configuration of the storage battery system 10 according to a modification of the present invention.
  • the storage battery system 10 has a rectifying element 8 between the switch control unit 4 a and the first storage battery 1 and between the switch control unit 4 a and the second storage battery 2.
  • the first rectifying element 8a and the second rectifying element 8b are provided so that their cathodes face each other.
  • the description of the contents common to the above embodiment will be omitted.
  • the rectifying element 8 is a diode and includes a first rectifying element 8a and a second rectifying element 8b.
  • the first rectifying element 8a is provided between the switch control unit 4a and the first storage battery 1 in such a direction that power is supplied from the first storage battery 1 to the switch control unit 4a.
  • the first rectifying element 8a is composed of two rectifying elements, but the first rectifying element 8a may be composed of one or three or more rectifying elements. By providing a plurality of rectifying elements, the breakdown voltage can be increased.
  • the second rectifying element 8b is provided between the switch control unit 4a and the second storage battery 2 in such a direction that power is supplied from the second storage battery 2 to the switch control unit 4a.
  • the second rectifying element 8b is composed of two rectifying elements, but the second rectifying element 8b may be composed of one or three or more rectifying elements. By providing a plurality of rectifying elements, the breakdown voltage can be increased.
  • first rectifying element 8a and the second rectifying element 8b for example, current does not flow from the first storage battery 1 to the second storage battery 2 or from the second storage battery 2 to the first storage battery 1, and the switch controller 4a Power supply is secured.
  • the storage battery system 10 mounted on the hybrid vehicle has been described, but the present invention is not limited to this.
  • the storage battery system 10 may be mounted on an electric vehicle (EV vehicle).
  • EV vehicle electric vehicle

Abstract

L'invention concerne un système de batterie d'accumulateurs avec lequel de l'électricité peut être fournie à une charge même si l'alimentation fournie par un accumulateur est coupée. Ce système de batterie d'accumulateurs (10) comprend un premier accumulateur (1), un second accumulateur (2), et un interrupteur à commande électrique (4) qui comporte une unité de commande d'interrupteur (4a) et un élément interrupteur (4b) qui est ouvert/fermé par l'unité de commande d'interrupteur (4a), le premier accumulateur (1) et le second accumulateur (2) étant connectés en parallèle, l'unité de commande d'interrupteur (4a) étant configurée pour être apte à fournir de l'électricité aussi bien par le premier accumulateur (1) que par le second accumulateur (2), et une alimentation étant reçue en provenance du premier accumulateur (1) et/ou du second accumulateur (2) pour exciter l'élément interrupteur (4b).
PCT/JP2016/086547 2015-12-25 2016-12-08 Système de batterie d'accumulateurs WO2017110498A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-254786 2015-12-25
JP2015254786A JP2017118788A (ja) 2015-12-25 2015-12-25 蓄電池システム

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7205489B2 (ja) * 2017-12-04 2023-01-17 株式会社Ｇｓユアサ 充電制御装置、蓄電装置、充電方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06197474A (ja) * 1992-12-22 1994-07-15 Matsushita Electric Works Ltd バックアップ電源装置
JPH07154932A (ja) * 1993-11-29 1995-06-16 Meidensha Corp 直流電源装置
JPH09308115A (ja) * 1996-05-20 1997-11-28 Mitsubishi Electric Corp 充電装置
JP2002171680A (ja) * 2000-11-29 2002-06-14 Origin Electric Co Ltd 蓄電池の充電方法及び電源装置
JP2004364362A (ja) * 2003-06-02 2004-12-24 Auto Network Gijutsu Kenkyusho:Kk 負荷電源供給システム及びその電源供給方法
JP2014150593A (ja) * 2011-06-06 2014-08-21 Panasonic Corp 車両用電源システム
JP2015109741A (ja) * 2013-12-04 2015-06-11 株式会社デンソー 電池制御装置
JP2015126515A (ja) * 2013-12-27 2015-07-06 キヤノン株式会社 電子機器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06197474A (ja) * 1992-12-22 1994-07-15 Matsushita Electric Works Ltd バックアップ電源装置
JPH07154932A (ja) * 1993-11-29 1995-06-16 Meidensha Corp 直流電源装置
JPH09308115A (ja) * 1996-05-20 1997-11-28 Mitsubishi Electric Corp 充電装置
JP2002171680A (ja) * 2000-11-29 2002-06-14 Origin Electric Co Ltd 蓄電池の充電方法及び電源装置
JP2004364362A (ja) * 2003-06-02 2004-12-24 Auto Network Gijutsu Kenkyusho:Kk 負荷電源供給システム及びその電源供給方法
JP2014150593A (ja) * 2011-06-06 2014-08-21 Panasonic Corp 車両用電源システム
JP2015109741A (ja) * 2013-12-04 2015-06-11 株式会社デンソー 電池制御装置
JP2015126515A (ja) * 2013-12-27 2015-07-06 キヤノン株式会社 電子機器

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