JP2020010462A - 電源システム - Google Patents
電源システム Download PDFInfo
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- JP2020010462A JP2020010462A JP2018128096A JP2018128096A JP2020010462A JP 2020010462 A JP2020010462 A JP 2020010462A JP 2018128096 A JP2018128096 A JP 2018128096A JP 2018128096 A JP2018128096 A JP 2018128096A JP 2020010462 A JP2020010462 A JP 2020010462A
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
- B60L1/04—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line
- B60L1/06—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line using only one supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
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- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
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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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
- B60L2210/42—Voltage source inverters
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
- H02J1/084—Three-wire systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
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- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
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- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- 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
- H02J7/1423—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 with multiple batteries
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- 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
- H02J7/143—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 with multiple generators
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- 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
- H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
- H02J7/1492—Regulation of the charging current or voltage otherwise than by variation of field by means of controlling devices between the generator output and the battery
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- 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
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- 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
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- 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
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- 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
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- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
Description
分岐ボックスを、第1分岐ボックス、及び、第2分岐ボックスの2つに分け、さらに、走行系統に接続される第4接続部を第1分岐ボックスに設け、補機類に接続される第3接続部を第2分岐ボックスに設けることで、第1分岐ボックスを走行系、第2分岐ボックスを装備系に分類することができる。ここで、一般的に、分岐ボックスに入力される電圧が高い程、バスバーや接続部のサイズが大きくなり、それに伴い、分岐ボックスの形状も大きくなる。このとき、走行系統に用いられる電圧は、グレードの高い車(高級車)は高い傾向にあり(例えば、最大1000V程度)、グレードの低い車(一般車)は低い傾向にあることから(例えば最大500V程度)、第1分岐ボックスのサイズは高級車の方が大きくなる。一方、装備系に用いられる電圧は、高級車も一般車も同じ(例えば、最大500V程度)電圧であり、高級車も一般車も第2分岐ボックスのサイズは同じとなる。従って、第2分岐ボックスを異なる車両グレード(高級車及び一般車)間で共通化することができ、部品点数を削減することができる。
また、前記分岐ボックスは、前記バッテリーボックスの外部に設けられており、前記バッテリーボックスは、前記複数の電池セルと電気的に接続され、前記複数の電池セルを充電するための電力の入力、及び、前記複数の電池セルからの電力の出力が可能な第3接続部を有し、前記第1分岐ボックスは、前記第3接続部及び前記第1分岐回路と電気的に接続される第4接続部を有し、前記第1分岐回路と前記第2分岐回路との間には、前記第1分岐回路と前記第2分岐回路とを電気的に接続する連結回路が設けられている構成としても良い。
分岐回路はバッテリーボックスの外部に設けられる分岐ボックス内に設けられているため、従来のように、バッテリーボックスの内部に分岐回路が設けられている構成と比較して、バッテリーボックスとその外部に搭載される機能部品(例えば補機類及び走行系統等)とを接続する接続部の数を減らすことができ、バッテリーボックスを小型化することができる。また、第1分岐回路と第2分岐回路とを連結する連結回路を設けることで、バッテリーボックスから第2分岐ボックスに接続する接続部が不要となり、バッテリーボックスと外部の機能部品(例えば補機類及び走行系統等)とを接続する接続部の数をさらに減らすことができる。また、分岐ボックス内のヒューズ等の電子部品が故障した際に、分岐ボックスのみを車両から取り外し、電子部品の交換作業を行うことができる。これにより、従来のように、ヒューズ等の電子部品の交換のため、バッテリーボックスを車両から取り外す必要がないことから、メンテナンス性を向上させることができる。
また、前記走行系統は、前記車両を走行させる電気モータと、前記電気モータを作動させるインバータを有するパワーコントロールユニットと、を備え、前記インバータの作動可能な電圧は、前記バッテリーボックスの前記第3接続部における電圧である第1電圧とされ、前記第1接続部、及び、前記第4接続部における電圧は、前記第1電圧と同電位とされ、前記第2接続部における電圧は、前記第1電圧と異なる第2電圧とされ、前記連結回路は、前記第1分岐回路に電気的に接続される第1連結回路と、前記第2分岐回路に電気的に接続される第2連結回路と、から構成され、前記第1連結回路と前記第2連結回路とは、前記第1電圧を前記第2電圧に変圧させる変圧装置を介して電気的に接続されている構成としても良い。
バッテリーボックスの第3接続部における第1電圧は、インバータの作動電圧と同電位であるため、パワーコントロールユニット内で入力電圧をインバータの作動電圧に変換する昇圧コンバータ)が不要となり、パワーコントロールユニットを小型化することができる。
図1から図5を参照して本実施形態を説明する。本実施形態に係る電源システム10は、図1に示すように、車両12に搭載されるものであって、図2に示すように、バッテリーボックス14から供給される電力を、バッテリーボックス14の外部に設けられた分岐ボックス16の分岐回路18を介して、補機類20、及び、走行系統22にそれぞれ供給するシステムである。
図6を参照して本実施形態を説明する。
本実施形態の電源システム10Aは、所謂、高級車に用いられるシステムであって、実施形態1のバッテリーボックス14よりも高い電圧のバッテリーボックス14Aが用いられる。また、本実施形態の連結回路60Aは、第1分岐回路18Cと電気的に接続される第1連結回路94と、第2分岐回路18Bと電気的に接続される第2連結回路96とから構成されており、さらに、第1連結回路94と第2連結回路96との間に、DC/DCコンバータ(変圧装置)98が設けられている。
本明細書によって開示される技術は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような種々の態様も含まれる。
(1)実施形態1では、走行系の第1分岐ボックス16Aは最大500V、装備系の第2分岐ボックス16Bは最大500Vとし、実施形態2では、走行系の第1分岐ボックス16Aは最大1000V、装備系の第2分岐ボックス16Bは最大500Vである構成としたが、第1分岐ボックス16A及び第2分岐ボックス16Bの電圧は、上記実施形態の電圧よりも高くても良いし、低くても良い。
(2)実施形態1では、バッテリーボックス14と分岐ボックス16との間の電気的な接続は、バッテリーボックス14の第1コネクタ40と第1分岐ボックス16Aの第3コネクタ62とを接続することで行われていたが、バッテリーボックス14と第2分岐ボックス16Bとを電気的に接続する構成としても良い。
(3)上記実施形態では、車両12は、給電部24を有する構成としていたが、例えば、給電部24を有さないハイブリッド車に電源システム10、10Aを適用しても良い。
(4)上記実施形態では、分岐ボックス16は、バッテリーボックス14、14Aの外部に設けられる構成としたが、分岐ボックス16の機能をバッテリーボックス14、14Aの内部に設ける構成としても良い。
12:車両
14,14A:バッテリーボックス
36,36E:電池セル群(複数の電池セル)
40:第1コネクタ(第3接続部)
16:分岐ボックス
16A,16C:第1分岐ボックス
62:第3コネクタ(第4接続部)
66:第5コネクタ(第1接続部)
16B:第2分岐ボックス
78:第7コネクタ(第2接続部)
18:分岐回路
18A,18C:第1分岐回路
18B:第2分岐回路
60,60A:連結回路
20:補機類
22:走行系統
30:モータ(電気モータ)
32,32A:PCU(パワーコントロールユニット)
37:インバータ
94:第1連結回路
96:第2連結回路
98:DC/DCコンバータ(変圧装置)
V3:電圧(第1電圧)
V4:電圧(第2電圧)
Claims (3)
- 電力により車両を動作させるための電源システムであって、
前記車両は、
内部に複数の電池セルが内蔵されるバッテリーボックスと、
電力によって作動可能な補機類と、
電力によって走行可能な走行系統と、
前記電池セルと、前記補機類及び前記走行系統とを電気的に接続する分岐ボックスと、を備え、
前記分岐ボックスは、第1分岐ボックスと、第2分岐ボックスとを備え、
前記第1分岐ボックスは、
前記走行系統と電気的に接続され、前記走行系統からの電力の入力、又は、前記走行系統への電力の出力が可能な第1接続部と、
前記電池セルと前記第1接続部とを電気的に接続する第1分岐回路と、を備え、
前記第2分岐ボックスは、
前記補機類と電気的に接続され、前記補機類からの電力の入力、又は、前記補機類への電力の出力が可能な第2接続部と、
前記電池セルと前記第2接続部とを電気的に接続する第2分岐回路と、を備える電源システム。 - 前記分岐ボックスは、前記バッテリーボックスの外部に設けられており、
前記バッテリーボックスは、前記複数の電池セルと電気的に接続され、前記複数の電池セルを充電するための電力の入力、及び、前記複数の電池セルからの電力の出力が可能な第3接続部を有し、
前記第1分岐ボックスは、前記第3接続部及び前記第1分岐回路と電気的に接続される第4接続部を有し、
前記第1分岐回路と前記第2分岐回路との間には、前記第1分岐回路と前記第2分岐回路とを電気的に接続する連結回路が設けられている請求項1に記載の電源システム。 - 前記走行系統は、前記車両を走行させる電気モータと、前記電気モータを作動させるインバータを有するパワーコントロールユニットと、を備え、
前記インバータの作動可能な電圧は、前記バッテリーボックスの前記第3接続部における電圧である第1電圧とされ、前記第1接続部、及び、前記第4接続部における電圧は、前記第1電圧と同電位とされ、
前記第2接続部における電圧は、前記第1電圧と異なる第2電圧とされ、
前記連結回路は、前記第1分岐回路に電気的に接続される第1連結回路と、前記第2分岐回路に電気的に接続される第2連結回路と、から構成され、
前記第1連結回路と前記第2連結回路とは、前記第1電圧を前記第2電圧に変圧させる変圧装置を介して電気的に接続されている請求項2に記載の電源システム。
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