JP6834448B2 - 電池ユニット、及び電源システム - Google Patents
電池ユニット、及び電源システム Download PDFInfo
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- 238000002485 combustion reaction Methods 0.000 claims description 10
- 238000010248 power generation Methods 0.000 claims description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 74
- 229910001416 lithium ion Inorganic materials 0.000 description 74
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- 230000001681 protective effect Effects 0.000 description 4
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- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
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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
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- 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
- 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
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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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
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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
- H01M10/44—Methods for charging or discharging
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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
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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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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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
- B60L2210/30—AC to DC converters
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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
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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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
- Y02E60/10—Energy storage using batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y02T10/00—Road transport of goods or passengers
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Description
エンジンと、前記エンジンの出力軸に駆動連結され、発電及び力行駆動の各機能を有する回転電機(16)と、該回転電機に対して並列接続される第1蓄電池(11)及び第2蓄電池(12)とを備える車両に適用され、前記各蓄電池のうち前記第2蓄電池を備えており、前記第1蓄電池及び前記回転電機にそれぞれ接続される電池ユニット(U)であって、
前記第1蓄電池が接続される第1端子(T1)と、
前記回転電機が接続される第2端子(T2)と、
前記第1端子と前記第2端子とを接続する第1電気経路(L1)に設けられ、該第1電気経路を開放又は閉鎖する第1開閉部(SW1)と、
前記第1電気経路において前記第1開閉部よりも前記第2端子の側の接続点(N1)と前記第2蓄電池とを接続する第2電気経路(L2)に設けられ、該第2電気経路を開放又は閉鎖する第2開閉部(SW2)と、
を備え、
前記第2開閉部は、前記第1開閉部に比べて許容通電電流が大きいものであり、前記第2蓄電池から前記回転電機への給電時における最大許容電流が、前記第1蓄電池から前記回転電機への給電時における最大許容電流よりも大きくなっていることを特徴とする。
以下、本発明を具体化した実施形態を図面に基づいて説明する。本実施形態では、エンジン(内燃機関)を駆動源として走行する車両において当該車両の各種機器に電力を供給する車載電源システムを具体化するものとしている。
・上記実施形態では、第1スイッチ群SW1及び第2スイッチ群SW2として、並列に接続された半導体スイッチを寄生ダイオードの向きが互いに逆向きになるようにして直列に接続されたものを用いたが、これを変更してもよい。例えば、図5に示すように、第1スイッチ群SW1及び第2スイッチ群SW2として、寄生ダイオードの向きが互いに逆向きとなるようにして直列に接続された直列接続体を並列に接続されたものを用いてもよい。具体的には、第1スイッチ群SW1は、直列接続体31,32が並列に接続された構成となっており、第2スイッチ群SW2は、直列接続体41,42,43が並列に接続された構成となっている。
上記第1実施形態では、電気負荷15を被保護負荷とする構成としたが、第2実施形態では、電気負荷17にも被保護負荷が含まれる構成とする。なお、第2実施形態における電源システムは、第1実施形態と同じである。
・上記実施形態では、図6に示される第1スイッチ群SW1及び第2スイッチ群SW2での診断を示したが、第1スイッチ群SW1及び第2スイッチ群SW2の構成はこれに限らない。例えば、各スイッチ群の並列数をそれぞれ変更してもよい。なお、かかる場合であっても、ダイオードの向きが逆向きとなる任意の一組の半導体スイッチの駆動信号をそれぞれ検出すればよい。
上記第1実施形態で示した電池ユニットUは、リチウムイオン蓄電池12と、制御装置50を実装した基板70とを筐体に組み付けることで構築される。図8には、リチウムイオン蓄電池12と基板70を組み付けた状態での配線の状態を示している。なお、リチウムイオン蓄電池12の負極とグランドが接続される通電経路に設けられるヒューズ71は、電池ユニットUの製造時において、リチウムイオン蓄電池12の正極及び負極に対して基板70を組み付けた後に取り付けられるようになっている。
Claims (3)
- エンジンと、前記エンジンの出力軸に駆動連結され、発電及び力行駆動の各機能を有する回転電機(16)と、該回転電機に対して並列接続される第1蓄電池(11)及び第2蓄電池(12)とを備える車両に適用され、前記各蓄電池のうち前記第2蓄電池を備えており、前記第1蓄電池及び前記回転電機にそれぞれ接続される電池ユニット(U)であって、
前記第1蓄電池が接続される第1端子(T1)と、
前記回転電機が接続される第2端子(T2)と、
前記第1端子と前記第2端子とを接続する第1電気経路(L1)に設けられ、該第1電気経路を開放又は閉鎖する第1開閉部(SW1)と、
前記第1電気経路において前記第1開閉部よりも前記第2端子の側の接続点(N1)と前記第2蓄電池とを接続する第2電気経路(L2)に設けられ、該第2電気経路を開放又は閉鎖する第2開閉部(SW2)と、
前記第1開閉部及び前記第2開閉部の開閉を制御する制御部(50)と、
を備え、
前記第2開閉部は、前記第1開閉部に比べて許容通電電流が大きいものであり、前記第2蓄電池から前記回転電機への給電時における最大許容電流が、前記第1蓄電池から前記回転電機への給電時における最大許容電流よりも大きくなっており、
前記制御部は、前記回転電機によるエンジン始動を行う時に、前記第1開閉部を閉鎖、前記第2開閉部を開放して、前記第1蓄電池から前記回転電機への給電を行わせ、
前記回転電機により前記出力軸へ走行用動力を付与する時に、前記第1開閉部を開放、前記第2開閉部を閉鎖して、前記第2蓄電池から前記回転電機への給電を行わせ、
前記エンジンの燃焼が停止された状態で、所定以上の前記走行用動力が必要となる場合は、前記第1開閉部を開放、前記第2開閉部を閉鎖して前記走行用動力を付与し、必要となる前記走行用動力が所定未満である場合は、前記第1開閉部を閉鎖、前記第2開閉部を開放して前記走行用動力を付与する電池ユニット。 - 前記第1開閉部は、並列接続された複数のスイッチ(Sa1〜Sa4)を有し、
前記第2開閉部は、並列接続された複数のスイッチ(Sb1〜Sb6)を有するものであって、
前記第2開閉部における前記複数のスイッチの並列数が、前記第1開閉部における前記複数のスイッチの並列数に比べて多くなっている請求項1に記載の電池ユニット。 - エンジンを備える車両に適用され、
前記エンジンの出力軸に駆動連結され、発電及び力行駆動の各機能を有する回転電機(16)と、該回転電機に対して互いに並列接続される第1蓄電池(11)及び第2蓄電池(12)とを備え、前記第1蓄電池及び前記第2蓄電池の各々から前記回転電機への給電が可能な電源システムであって、
前記回転電機と前記第1蓄電池を接続する第1電気経路(L1)に設けられ、該第1電気経路を開放又は閉鎖する第1開閉部(SW1)と、
前記回転電機と前記第2蓄電池を接続する第2電気経路(L2)に設けられ、該第2電気経路を開放又は閉鎖する第2開閉部(SW2)と、
前記第1開閉部及び前記第2開閉部の開閉を制御する制御部(50)と、
を備え、
前記第2開閉部は、前記第1開閉部に比べて許容通電電流が大きいものであり、前記第2蓄電池から前記回転電機への給電時における最大許容電流が、前記第1蓄電池から前記回転電機への給電時における最大許容電流よりも大きくなっており、
前記制御部は、前記回転電機によるエンジン始動を行う時に、前記第1開閉部を閉鎖、前記第2開閉部を開放して、前記第1蓄電池から前記回転電機への給電を行わせ、
前記回転電機により前記出力軸へ走行用動力を付与する時に、前記第1開閉部を開放、前記第2開閉部を閉鎖して、前記第2蓄電池から前記回転電機への給電を行わせ、
前記エンジンの燃焼が停止された状態で、所定以上の前記走行用動力が必要となる場合は、前記第1開閉部を開放、前記第2開閉部を閉鎖して前記走行用動力を付与し、必要となる前記走行用動力が所定未満である場合は、前記第1開閉部を閉鎖、前記第2開閉部を開放して前記走行用動力を付与する電源システム。
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