WO2017183437A1 - Dispositif et système d'alimentation électrique automobile - Google Patents

Dispositif et système d'alimentation électrique automobile Download PDF

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Publication number
WO2017183437A1
WO2017183437A1 PCT/JP2017/014019 JP2017014019W WO2017183437A1 WO 2017183437 A1 WO2017183437 A1 WO 2017183437A1 JP 2017014019 W JP2017014019 W JP 2017014019W WO 2017183437 A1 WO2017183437 A1 WO 2017183437A1
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WO
WIPO (PCT)
Prior art keywords
storage device
power storage
power supply
generator
path
Prior art date
Application number
PCT/JP2017/014019
Other languages
English (en)
Japanese (ja)
Inventor
速人 福嶋
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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.)
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Publication date
Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2017183437A1 publication Critical patent/WO2017183437A1/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
    • 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
    • B60R16/04—Arrangement of batteries
    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • 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
    • H02H7/18—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 for batteries; for accumulators
    • 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
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle

Definitions

  • the present invention relates to a vehicle power supply device and a vehicle power supply system.
  • a vehicle equipped with a first battery, a second battery, and an alternator has been proposed.
  • a switch may be provided between the first battery and the second battery.
  • the alternator may be directly connected to the first battery and may be connected to the second battery via a switch. This alternator generates electric power as the engine rotates and charges the first battery. When the switch is on, the alternator can also charge the second battery via the switch.
  • the first load may be directly connected to the first battery, and the second load may be directly connected to the second battery.
  • the first load is also connected to the second battery via the switch, and the second load is also connected to the first battery via the switch.
  • Patent Document 1 is disclosed as a technique related to the present invention.
  • the second battery and the ground fault can be shut off by turning off the switch. Therefore, even in this case, when the charging rate of the second battery is high, power can be supplied from the second battery to the second load.
  • an object of the present invention is to provide an in-vehicle power supply device that can reduce a ground fault current.
  • a first aspect of the in-vehicle power supply device is provided on a first path (R1) connecting a generator (1) that outputs a DC voltage and a first power storage device (21), and the generator is the first A first diode (D1) whose forward direction is a direction in which a charging current for charging the power storage device flows, and a second path (R2) connecting the generator and the second power storage device (22); And a second diode (D2) whose forward direction is a direction in which a charging current for charging the second power storage device flows.
  • a second aspect of the in-vehicle power supply apparatus is the in-vehicle power supply apparatus according to the first aspect, wherein the first path (R1) has a common path and a first specific path, and the generator is The second route (R2) includes the common route and the second unique route (R21), which are connected to the first power storage device via the common route and the first unique route in this order.
  • the generator is connected to the first power storage device via the common path and the second specific path in this order, the first diode is provided on the first specific path, and the second The diode is provided on the second intrinsic path.
  • a third aspect of the in-vehicle power supply device is the in-vehicle power supply device according to the first aspect, wherein the first path (R1) has a common path and a first specific path, and the generator
  • the second route (R2) includes the common route and the second unique route (R21), which are connected to the first power storage device via the common route and the first unique route in this order.
  • the generator is connected to the first power storage device via the common path and the second inherent path in this order, the first diode is provided on the common path, and the second diode is It is provided on the second specific path.
  • a fourth aspect of the in-vehicle power source device is the in-vehicle power source device according to any one of the first to third aspects, wherein the in-vehicle power source device is between the first power storage device (21) and the first load (31). And a fuse (512).
  • the on-vehicle power supply system includes an on-vehicle power supply device (4) according to any one of the first to fourth aspects, the generator (1), the first power storage device (21), and the first power storage device. 2 power storage device (22).
  • the second diode blocks the second power storage device from the ground fault. Therefore, the second power storage device can supply power while avoiding a ground fault current from the second power storage device.
  • the in-vehicle power supply device it is suitable when the voltage of the second power storage device is lower than the voltage of the first power storage device.
  • the first fuse when a ground fault occurs between the first power storage device and the first load, the first fuse is blown. Thereby, a generator can be interrupted
  • FIG. 1 is a diagram schematically showing an example of an in-vehicle power supply system. It is a figure which shows roughly an example of the vehicle-mounted power supply system when a ground fault arises. It is a figure which shows roughly another example of a vehicle-mounted power supply system.
  • FIG. 1 is a diagram schematically showing an example of the configuration of the in-vehicle power supply system 100.
  • the in-vehicle power supply system 100 is mounted on a vehicle.
  • the in-vehicle power supply system 100 includes a generator 1, power storage devices 21 and 22, and an in-vehicle power supply device 4.
  • the in-vehicle power supply system 100 supplies power to the loads 31 and 32.
  • the generator 1 is connected to the power storage devices 21 and 22 and the loads 31 and 32 via the on-vehicle power supply device 4.
  • the generator 1 is an alternator, for example, and generates power as the engine rotates and outputs a DC voltage.
  • the power storage device 22 is, for example, a lead battery.
  • the power storage device 21 is, for example, a lithium ion battery, a nickel metal hydride battery, or a capacitor.
  • the on-vehicle power supply device 4 includes diodes D1 and D2.
  • the diode D1 is provided on a path R1 connecting the generator 1 and the power storage device 21.
  • route here is a path
  • the forward direction of the diode D ⁇ b> 1 is a direction in which a charging current for charging the power storage device 21 by the generator 1 flows, and here is a direction from the power generator 1 toward the power storage device 21.
  • the diode D1 prevents the power storage device 21 from discharging to the generator 1.
  • the diode D2 is provided on a path R2 connecting the generator 1 and the power storage device 22.
  • the forward direction of the diode D ⁇ b> 2 is a direction in which a charging current for charging the power storage device 22 by the generator 1 flows, and here is a direction from the power generator 1 toward the power storage device 22.
  • the diode D1 prevents the power storage device 22 from discharging to the generator 1.
  • the route R1 has a common route R3 and a unique route R11
  • the route R2 has a common route R3 and a unique route R21.
  • One end of the common route R3 is connected to the generator 1, and the other end of the common route R3 is connected to one end of each of the unique routes R11 and R12.
  • the unique path R11 is a path that connects the other end of the common path R3 to the power storage device 21, and the unique path R21 is a path that connects the other end of the common path R3 to the power storage device 22.
  • the generator 1 is connected to the power storage device 21 via the common route R3 and the unique route R11 in this order, and is connected to the power storage device 22 via the common route R3 and the unique route R21 in this order.
  • the diode D1 is provided on the unique path R11
  • the diode D2 is provided on the unique path R21.
  • the power storage device 21 is connected to the load 31 and supplies power to the load 31.
  • the load 31 is, for example, EPS (Electric Power Steering).
  • the power storage device 22 is connected to the load 32 and supplies power to the load 32.
  • the load 32 may also be EPS, for example.
  • the in-vehicle power supply device 4 may include fuses 511, 512, 521, 522.
  • the fuse 511 is connected between the power storage device 21 and the diode D1 in the specific path R11, and the fuse 512 is connected between the power storage device 21 and the load 31.
  • the fuse 521 is connected between the power storage device 22 and the diode D2 in the specific path R21, and the fuse 522 is connected between the power storage device 22 and the load 32.
  • FIG. 2 schematically shows an example of the in-vehicle power supply system 100 when the ground fault occurs.
  • the ground fault F1 is indicated by a graphic symbol of grounding.
  • the diode D2 blocks the power storage device 22 from the ground fault F2. Therefore, it is possible to avoid the occurrence of a current flowing from the power storage device 22 to the ground fault F1 (hereinafter referred to as a ground fault current). That is, according to the in-vehicle power supply system 100, the power storage device 22 is not cut off from the ground fault F1 by the switch, but the diode D2 is cut off. Accordingly, the power storage device 22 is disconnected from the ground fault F2 simultaneously with the occurrence of the ground fault F1. Therefore, the ground fault current from the power storage device 22 can be reduced. Therefore, the discharge of the power storage device 22 due to the ground fault current is quickly stopped, and an unnecessary reduction in the charging rate can be avoided.
  • a ground fault current flowing from the power storage device 22 to the ground fault F1
  • a ground fault current flows from the power storage device 21 to the ground fault F1.
  • the fuse 512 is blown by the ground fault current.
  • the electrical storage apparatus 21 is interrupted
  • the generator 1 is also disconnected from the ground fault F1. Therefore, after the fuse 512 is blown, when the generator 1 charges the power storage device 22, no current flows from the generator 1 to the ground fault F1. Therefore, the power storage device 22 can be charged efficiently. According to this, electric power can be supplied to the load 32 over a longer period.
  • the diode D1 blocks the power storage device 21 from the ground fault. Therefore, the power storage device 21 can supply power to the load 31 while avoiding a ground fault current from the power storage device 21.
  • FIG. 3 is a diagram illustrating an example of the configuration of the in-vehicle power supply system 100A.
  • the in-vehicle power supply system 100A is different from the in-vehicle power supply system 100 in that the diodes D1 and D2 are installed.
  • the diode D1 is provided on the common path R3, and the diode D2 is provided on the specific path R21.
  • the diode D2 can block the power storage device 22 from the ground fault. Therefore, electric power can be supplied to the load 32 while avoiding a ground fault current from the power storage device 22.
  • the in-vehicle power supply system 100A two diodes D1 and D2 are interposed between the power storage device 22 and the generator 1, and one diode D1 is interposed between the power storage device 21 and the generator 1.
  • the number of diodes interposed between the power storage device 21 and the generator 1 is smaller than the number of diodes interposed between the power storage device 22 and the generator 1. Therefore, the voltage applied from power generator 1 to power storage device 22 is smaller than the voltage applied from power generator 1 to power storage device 21. This is suitable when the voltage (for example, rated voltage) of the power storage device 22 is smaller than the power storage device 21 (for example, rated voltage).
  • the voltage of a nickel metal hydride battery is about 13.6 [V]
  • the voltage of a lead battery is about 12.5 to 13 [V]. Therefore, the configuration of the in-vehicle power supply system 100A is suitable when a nickel metal hydride battery is used for the power storage device 21 and a lead battery is used for the power storage device 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Protection Of Static Devices (AREA)
  • Control Of Charge By Means Of Generators (AREA)

Abstract

L'invention concerne un dispositif d'alimentation électrique automobile qui permet de supprimer l'apparition d'un courant de défaut de mise à la terre. Le dispositif d'alimentation électrique automobile est pourvu de première et seconde diodes. La première diode est disposée sur un premier trajet reliant un générateur et un premier dispositif de stockage d'énergie. La direction vers l'avant de la première diode est la direction de circulation d'un courant de charge lorsque le générateur charge le premier dispositif de stockage d'énergie. La seconde diode est disposée sur un second trajet reliant le générateur et un second dispositif de stockage d'énergie. La direction vers l'avant de la seconde diode est la direction de circulation d'un courant de charge lorsque le générateur charge le second dispositif de stockage d'énergie.
PCT/JP2017/014019 2016-04-18 2017-04-04 Dispositif et système d'alimentation électrique automobile WO2017183437A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-082723 2016-04-18
JP2016082723A JP2017195652A (ja) 2016-04-18 2016-04-18 車載電源用装置および車載用電源システム

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Publication Number Publication Date
WO2017183437A1 true WO2017183437A1 (fr) 2017-10-26

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PCT/JP2017/014019 WO2017183437A1 (fr) 2016-04-18 2017-04-04 Dispositif et système d'alimentation électrique automobile

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WO (1) WO2017183437A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7185999B2 (ja) 2017-10-06 2022-12-08 上村工業株式会社 無電解パラジウムめっき液

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6377438U (fr) * 1986-11-07 1988-05-23
JPH0210754U (fr) * 1988-06-30 1990-01-23
WO1992014631A1 (fr) * 1991-02-14 1992-09-03 Ab Volvo Chargeur de batterie pour vehicule
JPH0946919A (ja) * 1995-08-02 1997-02-14 Sawafuji Electric Co Ltd バッテリアイソレータ
JPH1159293A (ja) * 1997-08-12 1999-03-02 Furukawa Electric Co Ltd:The 車両用電源装置及び車両用電源システム
JP2001298873A (ja) * 2000-04-13 2001-10-26 Yazaki Corp 車両用電源装置
WO2009057277A1 (fr) * 2007-11-01 2009-05-07 Panasonic Corporation Dispositif d'alimentation électrique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6377438U (fr) * 1986-11-07 1988-05-23
JPH0210754U (fr) * 1988-06-30 1990-01-23
WO1992014631A1 (fr) * 1991-02-14 1992-09-03 Ab Volvo Chargeur de batterie pour vehicule
JPH0946919A (ja) * 1995-08-02 1997-02-14 Sawafuji Electric Co Ltd バッテリアイソレータ
JPH1159293A (ja) * 1997-08-12 1999-03-02 Furukawa Electric Co Ltd:The 車両用電源装置及び車両用電源システム
JP2001298873A (ja) * 2000-04-13 2001-10-26 Yazaki Corp 車両用電源装置
WO2009057277A1 (fr) * 2007-11-01 2009-05-07 Panasonic Corporation Dispositif d'alimentation électrique

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