WO2017183512A1 - Dispositif de commutation pour alimentation électrique embarquée, et système d'alimentation électrique embarquée - Google Patents

Dispositif de commutation pour alimentation électrique embarquée, et système d'alimentation électrique embarquée Download PDF

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Publication number
WO2017183512A1
WO2017183512A1 PCT/JP2017/014767 JP2017014767W WO2017183512A1 WO 2017183512 A1 WO2017183512 A1 WO 2017183512A1 JP 2017014767 W JP2017014767 W JP 2017014767W WO 2017183512 A1 WO2017183512 A1 WO 2017183512A1
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WO
WIPO (PCT)
Prior art keywords
switch
storage device
vehicle
power storage
power supply
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Application number
PCT/JP2017/014767
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English (en)
Japanese (ja)
Inventor
広世 前川
裕通 安則
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
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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 WO2017183512A1 publication Critical patent/WO2017183512A1/fr

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    • 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
    • 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
    • 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

Definitions

  • the present invention relates to an on-vehicle power supply switch device and an on-vehicle power supply system.
  • Patent Document 1 describes an in-vehicle power supply device.
  • This in-vehicle power supply device includes an alternator, a lead storage battery, a lithium ion storage battery, a first switch, a second switch, and an electric load.
  • the electric load is a load mounted on the vehicle.
  • the first switch is connected between the lead storage battery and the electric load, and the second switch is connected between the lithium ion storage battery and the electric load.
  • the alternator is directly connected to the lead storage battery, and is connected to the lithium ion storage battery via the first switch and the second switch.
  • the alternator generates electricity with the rotation of the vehicle engine and charges the lead storage battery and the lithium ion storage battery.
  • Patent Document 1 a configuration in which each of an alternator and a lead storage battery and a lithium ion storage battery are short-circuited is considered.
  • the alternator can charge the lithium ion storage battery without going through the first switch and the second switch.
  • an object of the present invention is to provide a switch device for in-vehicle power supply that can easily maintain power supply to a vehicle load even when a ground fault occurs.
  • a first aspect of the switch device for in-vehicle power supply is a switch device for in-vehicle power supply, which is connected between the first vehicle load (5A, 5B) and the first power storage device (21). (31A, 31B), a second switch (32A, 32B) connected between the first vehicle load and the second power storage device (22), the first power storage device (21), and the second power storage A separation switch (33) connected to the device (22), wherein the first switch and the second switch are connected in series between the first power storage device and the second power storage device The separation switch is connected in parallel to the set of the first switch and the second switch.
  • a second aspect of the switch device for in-vehicle power supply is the switch device for in-vehicle power supply according to the first aspect, and is between the first power storage device (21) and the first switch (31A, 31B).
  • the first vehicle connected between the first fuse (41A, 41B) for the first vehicle load, and between the second power storage device (22) and the second switch (32A, 32B).
  • a second fuse (42A, 42B) for loading is further provided.
  • a third aspect of the on-vehicle power supply switch device is the on-vehicle power supply switch device according to the first or second aspect, wherein the first power storage device (21) and the second vehicle load (5B) A third switch (31B) connected in between, and a fourth switch (32B) connected between the second power storage device (22) and the second vehicle load, The fourth switch is connected in series between the first power storage device and the second power storage device, and one set of the third switch and the fourth switch is connected in parallel to the separation switch Is done.
  • a fourth aspect of the switch device for in-vehicle power supply is the switch device for in-vehicle power supply according to any one of the first to third aspects, and the ground on the first power storage device side than the first switch. The presence or absence of a fault is determined, and when it is determined that the ground fault has occurred, the first switch and the separation switch are turned off and the second switch is turned on.
  • a fifth aspect of the switch device for in-vehicle power supply is a switch device for in-vehicle power supply according to any one of the first to third aspects, wherein the first switch is turned off, the second switch is turned on, A control circuit that turns on the first switch and turns off the second switch when the separation switch is turned off from the state in which the separation switch is turned on and the potential on the separation switch side of the first switch increases; Prepare.
  • An aspect of the on-vehicle power supply system according to the present invention includes the on-vehicle power supply switch device according to any one of the first to fifth aspects and the second power storage device.
  • the switch device for in-vehicle power supply when a ground fault occurs on the first power storage device side with respect to the first switch, the first switch and the separation switch are turned off and the second switch is turned on. Thus, electric power can be supplied to the first vehicle load.
  • a ground fault occurs on the second power storage device side with respect to the second switch, power can be supplied to the first vehicle load by turning off the second switch and the separation switch and turning on the first switch.
  • FIG. 1 is a diagram schematically showing an example of an in-vehicle power supply system. It is a figure which shows an example of the internal structure of a relay unit. It is a figure which shows roughly an example of the vehicle-mounted power supply system when a ground fault generate
  • 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.
  • This in-vehicle power supply system 100 includes a generator 1, power storage devices 21, 22, a switch device 10 for in-vehicle power supply, and vehicle loads 5A and 5B.
  • the in-vehicle power supply system 100 may further include fuse groups 61 and 62.
  • the power storage device 21 is, for example, a lead battery, and is connected to the generator 1 and the switch device 10 via, for example, a fuse group 61.
  • the fuse group 61 is, for example, a fuse battery terminal, and is attached to the output terminal of the power storage device 21.
  • the fuse group 61 includes fuses 611 to 613.
  • the power storage device 21 is connected to the switch device 10 via the fuses 611 and 612, and is connected to the generator 1 via the fuse 613.
  • the generator 1 is an alternator, for example, and generates electric power and outputs a DC voltage as the vehicle engine rotates. In the illustration of FIG. 1, the generator 1 is described as “ALT”. The generator 1 can charge the power storage devices 21 and 22.
  • the power storage device 22 is, for example, a lithium ion battery, a nickel metal hydride battery, or a capacitor, and is connected to the switch device 10 via, for example, a fuse group 62.
  • the fuse group 62 is, for example, a fuse battery terminal, and is connected to the output terminal of the power storage device 22.
  • the fuse group 62 includes fuses 621 and 622.
  • the power storage device 22 is connected to the switch device 10 via fuses 621 and 622.
  • Switch device 10 appropriately connects power storage devices 21 and 22 to vehicle loads 5A and 5B.
  • the switch device 10 includes switches 31A, 32A, 31B, 32B and a separation switch 33.
  • the switches 31A, 32A, 31B, 32B and the separation switch 33 are relays, for example.
  • the switch device 10 includes fuse boxes 4A and 4B, which will be described later.
  • the switch 31A is connected between the power storage device 21 and the vehicle load 5A.
  • one end of the switch 31A is connected to the power storage device 21 via the fuse 611, and the other end is connected to the vehicle load 5A.
  • Switch 32A is connected between power storage device 22 and vehicle load 5A.
  • one end of the switch 32A is connected to the power storage device 22 via the fuse 622, and the other end is connected to the vehicle load 5A.
  • the switches 31A and 32A are connected in series between the power storage devices 21 and 22.
  • the separation switch 33 is connected in parallel to a pair of switches 31A and 32A.
  • one end of the separation switch 33 is connected to the power storage device 21 via a fuse 612, and the other end is connected to the power storage device 22 via a fuse 621.
  • the switch 31B is connected between the power storage device 21 and the vehicle load 5B.
  • one end of the switch 31B is connected to the power storage device 21 via the fuse 611, and the other end is connected to the vehicle load 5B.
  • Switch 32B is connected between power storage device 22 and vehicle load 5B.
  • one end of the switch 32B is connected to the power storage device 22 via the fuse 622, and the other end is connected to the vehicle load 5B.
  • switches 31B and 32B are connected in series between power storage devices 21 and 22.
  • the separation switch 33 is also connected in parallel to a pair of switches 31B and 32B.
  • the vehicle loads 5A and 5B are loads mounted on the vehicle.
  • the vehicle load 5A is a brake device (for example, an electric motor or an ECU) or a steering device (for example, an electric motor or an ECU), and the vehicle load 5B is a body control. It is a module.
  • the body control module can control the entire vehicle.
  • the vehicle load 5 ⁇ / b> B may control the switches 31 ⁇ / b> A, 32 ⁇ / b> A, 31 ⁇ / b> B, 32 ⁇ / b> B and the separation switch 33 according to the state of the vehicle (for example, power running, regeneration, etc.).
  • the fuse box 4A includes fuses 41A and 42A for a vehicle load 5A.
  • the fuse 41A is connected between the power storage device 21 and the switch 31A. In the illustration of FIG. 1, the fuse 41A is connected between the fuse 611 and the switch 31A.
  • the fuse 42A is connected between the power storage device 22 and the switch 32A. In the illustration of FIG. 1, the fuse 42A is connected between the fuse 622 and the switch 32A.
  • the fuse box 4A also includes fuses other than the fuses 41A and 42A.
  • the fuse box 4A of FIG. 1 two fuses having one end connected to the power storage device 21 are shown, and two fuses having one end connected to the power storage device 22 are shown. The other end of each of these fuses is connected to a vehicle load (not shown).
  • fuse box 4A has a function of distributing power from power storage devices 21 and 22 to a plurality of vehicle loads.
  • the fuse box 4B includes fuses 41B and 42B for the vehicle load 5B.
  • the fuse 41B is connected between the power storage device 21 and the switch 31B. In the illustration of FIG. 1, the fuse 41B is connected between the fuse 611 and the switch 31B.
  • the fuse 42B is connected between the power storage device 22 and the switch 32B. In the illustration of FIG. 1, the fuse 42B is connected between the fuse 622 and the switch 32B.
  • the fuse box 4B also includes fuses other than the fuses 41B and 42B.
  • fuses other than the fuses 41B and 42B For example, two fuses having one end connected to the power storage device 21 are shown, and two fuses having one end connected to the power storage device 22 are shown. The other end of each of these fuses is connected to a vehicle load (not shown).
  • fuse box 4B has a function of distributing power from power storage devices 21 and 22 to a plurality of vehicle loads.
  • FIG. 2 is a diagram schematically showing an example of the internal configuration of the relay unit 3A.
  • the relay unit 3A includes a control circuit 301, voltage detection circuits 302 and 303, and current detection circuits 304 and 305 in addition to the switches 31A and 32A.
  • the voltage detection circuit 302 detects a voltage generated in the wiring L1 closer to the power storage device 21 than the switch 31A, and outputs the detected value to the control circuit 301.
  • Voltage detection circuit 303 detects a voltage generated in wiring L ⁇ b> 2 on the power storage device 22 side with respect to switch 32 ⁇ / b> A, and outputs the detected value to control circuit 301.
  • the current detection circuit 304 detects the current flowing through the switch 31 ⁇ / b> A and outputs the detected value to the control circuit 301.
  • the current detection circuit 305 detects the current flowing through the switch 32A and outputs the detected value to the control circuit 301.
  • the control circuit 301 receives the instruction from the vehicle load 5B, for example, and controls the switches 31A and 32A and the separation switch 33.
  • the control circuit 301 includes a microcomputer and a storage device.
  • the microcomputer executes each processing step (in other words, a procedure) described in the program.
  • the storage device is composed of one or more of various storage devices such as a ROM (Read Only Memory), a RAM (Random Access Memory), a rewritable nonvolatile memory (EPROM (Erasable Programmable ROM), etc.), and a hard disk device, for example. Is possible.
  • the storage device stores various information, data, and the like, stores a program executed by the microcomputer, and provides a work area for executing the program.
  • control circuit 301 is not limited to this, and various procedures executed by the control circuit 301 or various means or various functions to be realized may be realized by hardware.
  • control circuit 301 can determine whether or not a ground fault has occurred based on the detection values of the voltage detection circuits 302 and 303. For example, it may be determined that a ground fault has occurred when the detection values of the voltage detection circuits 302 and 303 are below a predetermined value in a state where the switches 31A and 32A and the separation switch 33 are on. . Alternatively, the control circuit 301 causes a ground fault when the detection values of the voltage detection circuits 302 and 303 are below a predetermined value and the detection values of the current detection circuits 304 and 305 exceed the predetermined value. It may be determined that When it is determined that a ground fault has occurred, the control circuit 301 controls the switches 31A and 32A and the separation switch 33 as follows in preference to the instruction of the vehicle load 5B.
  • FIG. 3 is a diagram schematically showing an example of the in-vehicle power supply system 100.
  • the fuses 41B and 42B, the switches 31B and 32B, and the vehicle load 5B are not shown for simplicity.
  • a ground fault G1 is generated in the wiring between the fuse 41A and the switch 31A.
  • the control circuit 301 turns off the switch 31A and the separation switch 33 and turns on the switch 32A when determining that a ground fault (for example, ground fault G1) has occurred on the power storage device 21 side of the switch 31. Thereby, even if the ground fault G1 occurs, the power storage device 22 can supply power to the vehicle load 5A. In FIG. 3, this power supply is indicated by a block arrow.
  • a ground fault for example, ground fault G1
  • this ground fault (for example, ground fault G1) can be detected as follows, for example.
  • the ground fault G1 can be detected when the detection value of the voltage detection circuit 302 falls below a predetermined value with the switch 31A and the separation switch 33 turned off.
  • this ground fault it is desirable to turn on the switch 32A so as to supply power to the vehicle load 5A.
  • the switch pattern employed for detecting the ground fault is the same as the switch pattern employed in response to the detection of the ground fault.
  • FIG. 4 is a diagram schematically illustrating an example of the in-vehicle power supply system 100.
  • a ground fault G2 is generated between the fuse 42A and the switch 32A.
  • the control circuit 301 turns off the switch 32A and the separation switch 33, and turns on the switch 31A.
  • this power supply is indicated by block arrows.
  • a ground fault (for example, ground fault G2) closer to the power storage device 22 than the switch 32A is, for example, when the detection value of the voltage detection circuit 303 falls below a predetermined value in a state where the switch 32A and the separation switch 33 are turned off. Can be detected.
  • the ground fault it is desirable to turn on the switch 31A so as to supply power to the vehicle load 5A.
  • the switch pattern employed for detecting the ground fault is the same as the switch pattern employed in response to the detection of the ground fault.
  • the in-vehicle power supply system 100 even if a ground fault occurs, the power supply to the vehicle load 5A can be maintained.
  • the generator 1 is connected via the separation switch 33 by turning on the separation switch 33 when charging the power storage device 22 when no ground fault occurs.
  • the power storage device 22 can be charged.
  • the generator 1 charges the power storage device 22 via both the switches 31A and 31B. Will do.
  • the power storage device 22 is charged via the two switches 31A and 31B.
  • the power storage device 22 can be charged via one separation switch 33. Therefore, the power storage device 22 can be charged via fewer switches.
  • the resistance value of the separation switch 33 is less than or equal to the series connection of the switches 31A and 32A, the power storage device 22 can be charged with a smaller resistance value, so that the chargeability of the power storage device 22 can be improved.
  • the separation switch 33 is a simple wiring (a structure in which a short circuit is removed in accordance with FIG. 1)
  • the switch Regardless of the on / off state of 31A, 32A, current flows from power storage devices 21, 22 to the ground fault. In this case, power cannot be supplied to the vehicle load 5A.
  • the separation switch 33 is turned off when the ground fault G1 or the ground fault G2 occurs, one of the switches 31A and 32A (one corresponding to the ground fault) is turned off.
  • electric power can be supplied to the vehicle load 5A.
  • the ground fault is detected based on the detection values of the voltage detection circuits 302 and 303 (or further of the current detection circuits 304 and 305). The presence or absence of occurrence was judged. Accordingly, one of the switches 31A and 32A is turned off, the other is turned on, and from the state where the separation switch 33 is turned on, it is determined whether or not a ground fault has occurred based only on the detection values of the voltage detection circuits 302 and 303. May be.
  • the switch 31A in a state where the switch 31A is turned off and the switch 32A and the separation switch 33 are turned on, for example, when the detection value of the voltage detection circuit 303 falls below a reference value, it may be determined that a ground fault has occurred. . Since the separation switch 33 is on, the detection value of the voltage detection circuit 302 is theoretically the same as that of the voltage detection circuit 303. Therefore, when the detection value of the voltage detection circuit 303 falls below the reference value, It may be determined that an entanglement has occurred.
  • the control circuit 301 turns off the separation switch 33 when determining that a ground fault has occurred. If a ground fault occurs on the power storage device 21 side with respect to the separation switch 33, the power storage device 22 is cut off from the ground fault by turning off the separation switch 33. Therefore, the potential on the side of the separation switch 33 of the switch 32A (that is, the detection value of the voltage detection circuit 303) becomes higher than the reference value. Conversely, if a ground fault occurs on the power storage device 22 side with respect to the separation switch 33, the detected value of the voltage detection circuit 303 is lower than the reference value even when the separation switch 33 is turned off.
  • the control circuit 301 maintains the current switch pattern, and the detection value of the voltage detection circuit 303 is lower than the reference value.
  • the switch 31A is turned on and the switch 32A is turned off.
  • the power storage device 21 or the power storage device 22 can supply power to the vehicle load 5A according to the location where the ground fault occurs.
  • the switch 31A is turned on. Turns on and turns off the switch 32A.
  • the operation may be started with the switch 31A and the separation switch 33 turned on and the switch 32A turned off. This is because the switches 31A and 32A are connected in series between the wirings L1 and L2 on the side opposite to the separation switch 33.
  • the switches 31B and 32B are also connected in series between the wirings L1 and L2 on the opposite side to the separation switch 33 in the same manner as the switches 31A and 32A. Therefore, in order to detect and deal with the above-mentioned ground fault, one of the switches 31B and 32B needs to be turned off so that the separation switch 33 is not turned off and the function of separating the wirings L1 and L2 is not disturbed. There is.
  • fuses 41A and 42A for the vehicle load 5A are provided on the side opposite to the vehicle load 5A than the switches 31A and 32A (that is, the power storage devices 21 and 22 side).
  • FIG. 5 shows an in-vehicle power supply system 101 according to a comparative example.
  • fuses 410A and 420A for the vehicle load 5A are provided on the vehicle load 5A side of the switches 31A and 32A.
  • the in-vehicle power supply system 100 even if the ground fault G1 occurs in the wiring between the fuse 41A and the switch 31A, the switch 31A and the separation switch 33 are turned off and the switch 32A is turned on.
  • the power storage device 22 can supply power to the vehicle load 5A.
  • the in-vehicle power supply system 100 if a ground fault occurs in the wiring on the vehicle load 5A side than the switches 31A and 32A, power cannot be supplied to the vehicle load 5A. Therefore, the shortening of the wiring is preferable in that the possibility of occurrence of a ground fault is reduced. According to the in-vehicle power supply system 100, the fuses 41A and 42A are not provided between the switches 31A and 32A and the vehicle load 5A. The wiring connecting 32A and the vehicle load 5A can be shortened.
  • the switches 31A and 32A and the fuses 41A and 42A on the vehicle load 5A side have been described.
  • the switches 31B and 32B and the fuses 41B and 42B on the vehicle load 5B side have the same effect.
  • Vehicle load (first vehicle load / second vehicle load) 5B Vehicle load (second vehicle load / first vehicle load) 10 switch device 21, 22 power storage device (first power storage device, second power storage device) 31A switch (first switch / third switch) 31B switch (third switch / first switch) 32A switch (second switch / fourth switch) 32B switch (4th switch / 2nd switch) 33 Separation switch 41A, 41B Fuse (first fuse) 42A, 42B fuse (second fuse) 301 Control circuit

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

Abstract

La présente invention concerne un dispositif de commutation pour une alimentation électrique embarquée, ledit dispositif de commutation permettant de maintenir aisément une alimentation électrique à une charge de véhicule. Un premier commutateur est connecté entre une charge de véhicule et un premier dispositif de stockage d'électricité. Un deuxième commutateur est connecté entre la charge de véhicule et un deuxième dispositif de stockage d'électricité. Le premier commutateur et le deuxième commutateur sont connectés en série l'un à l'autre entre le premier dispositif de stockage d'électricité et le deuxième dispositif de stockage d'électricité. Un commutateur de séparation est connecté en parallèle à une paire configurée à partir du premier commutateur et du deuxième commutateur.
PCT/JP2017/014767 2016-04-18 2017-04-11 Dispositif de commutation pour alimentation électrique embarquée, et système d'alimentation électrique embarquée WO2017183512A1 (fr)

Applications Claiming Priority (2)

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JP2016082760A JP2017195653A (ja) 2016-04-18 2016-04-18 車載電源用のスイッチ装置および車載用電源システム
JP2016-082760 2016-04-18

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WO2017183512A1 true WO2017183512A1 (fr) 2017-10-26

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Cited By (1)

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JP2022171072A (ja) * 2021-04-30 2022-11-11 矢崎総業株式会社 電源システム

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US20200324719A1 (en) * 2019-04-09 2020-10-15 Byton North America Corporation Vehicle isolation switch for low voltage power supplies
JP2021029093A (ja) 2019-08-13 2021-02-25 矢崎総業株式会社 電源装置

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JP2004338577A (ja) * 2003-05-16 2004-12-02 Hitachi Ltd 車両用電力供給装置及び電力供給方法
WO2010026715A1 (fr) * 2008-09-08 2010-03-11 株式会社オートネットワーク技術研究所 Dispositif d’alimentation électrique pour véhicule
JP2015204699A (ja) * 2014-04-15 2015-11-16 株式会社デンソー 電池ユニット

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004338577A (ja) * 2003-05-16 2004-12-02 Hitachi Ltd 車両用電力供給装置及び電力供給方法
WO2010026715A1 (fr) * 2008-09-08 2010-03-11 株式会社オートネットワーク技術研究所 Dispositif d’alimentation électrique pour véhicule
JP2015204699A (ja) * 2014-04-15 2015-11-16 株式会社デンソー 電池ユニット

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022171072A (ja) * 2021-04-30 2022-11-11 矢崎総業株式会社 電源システム
JP7362691B2 (ja) 2021-04-30 2023-10-17 矢崎総業株式会社 電源システム
US11863012B2 (en) 2021-04-30 2024-01-02 Yazaki Corporation Power supply system

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