JP2020127297A - 車両電源システム - Google Patents
車両電源システム Download PDFInfo
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- 239000003990 capacitor Substances 0.000 claims abstract description 286
- 238000010586 diagram Methods 0.000 description 29
- 230000007423 decrease Effects 0.000 description 20
- 230000005540 biological transmission Effects 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- 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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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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Abstract
Description
このように構成された本発明によれば、キャパシタの定格電圧がバッテリの定格電圧よりも高いので、バッテリの定格電圧を、直列に接続されたキャパシタにより大きく嵩上げすることができ、より定格電圧の低いバッテリを使用することが可能になる。
このように構成された本発明によれば、バッテリの正極端子とキャパシタの負極端子が接続されているので、キャパシタの正極端子とバッテリの負極端子の間に外部電源を接続して充電を行うことができる。また、バッテリの負極端子を車両のアース電位とすることにより、低電圧駆動可能な負荷に対しては、バッテリに蓄積された電力のみで負荷を駆動することが可能になる。
このように構成された本発明によれば、キャパシタに蓄積可能な電荷がバッテリに蓄積可能な電荷よりも少ないので、キャパシタの端子間電圧を比較的少ない電荷で高くすることができ、比較的少ない電荷で大きく電圧を嵩上げすることができる。
このように構成された本発明によれば、バッテリ及びキャパシタに接続されたDC−DCコンバータが備えられているので、バッテリとキャパシタの間で電荷の授受が可能となる。これにより、車両電源システムの使用状況に応じてバッテリ及びキャパシタの蓄電量を調整することができ、状況に応じた適切な電源構成を実現することができる。
このように構成された本発明によれば、電気ケーブルを介して給電機器に外部電源が接続されるので、極めて簡単な構成で、外部電源からバッテリ及びキャパシタに充電を行うことができる。
図1は、本発明の第1実施形態による車両電源システムを搭載した車両のレイアウト図である。
図5は、本実施形態の車両電源システム10の回路を示す図である。図6は、本実施形態の車両電源システム10による外部電源からの充電時における作用を示すタイムチャートである。図7は、本実施形態の車両電源システム10による外部電源からの充電時における回路の状態を示す図である。図8は、本実施形態の車両電源システム10によるキャパシタの充電時における作用を示すタイムチャートである。図9は、本実施形態の車両電源システム10によるキャパシタの充電時における回路の状態を示す図である。図10は、本実施形態の車両電源システム10においてキャパシタの電荷をバッテリに充電する作用を示すタイムチャートである。図11は、本実施形態の車両電源システム10においてキャパシタの電荷をバッテリに充電する際の回路の状態を示す図である。
本実施形態の車両電源システムは、第1実施形態において備えられていた充電装置19が省略されている点が、上述した第1実施形態とは異なっている。従って、ここでは本実施形態の、第1実施形態とは異なる点のみを説明し、同様の構成、作用、効果については説明を省略する。図12は、本発明の第2実施形態による車両電源システム100の回路を示す図である。図13は、本実施形態の車両電源システム100による外部電源からの充電時における端子間電圧、及び充電電流の変化を示す図である。
本実施形態の車両電源システムは、第1実施形態において備えられていた充電装置19に代えてバイパス装置が設けられている点が、上述した第1実施形態とは異なっている。従って、ここでは本実施形態の、第1実施形態とは異なる点のみを説明し、同様の構成、作用、効果については説明を省略する。図14は、本発明の第3実施形態による車両電源システム200の回路を示す図である。図15は、本実施形態の車両電源システム200による外部電源からの充電時における端子間電圧、及び充電電流の変化を示す図である。
2a 後輪
2b 前輪
10 車両電源システム
12 エンジン
14 動力伝達機構
14a プロペラシャフト
14b トランスミッション
16 主駆動モータ
16a インバータ
17 外部電源
17a 電気ケーブル
18 バッテリ
19 充電装置(給電機器)
19a 充電コントローラ
19b 充電用キャパシタ
20 副駆動モータ
20a インバータ
22 キャパシタ
23 給電口(給電機器)
24 制御装置
26 DC−DCコンバータ
28 車載機器
100 車両電源システム
118 バッテリ
122 キャパシタ
123 給電口(給電機器)
200 車両電源システム
218 バッテリ
222 キャパシタ
219 バイパス装置(給電機器)
219a 電流調整器
219b 充電コントローラ
223 給電口(給電機器)
Claims (6)
- 所定の下限電圧以上の電圧で充電を行う外部電源によって充電される車両電源システムであって、
定格電圧が上記下限電圧よりも低いバッテリと、
このバッテリと、電気的に直列に接続されたキャパシタと、
上記外部電源からの電力を受け入れて、上記バッテリ及び上記キャパシタに充電する給電機器と、
を有し、
上記キャパシタは、上記バッテリの定格電圧と、上記キャパシタの定格電圧の和が、上記下限電圧よりも高くなるように構成されていることを特徴とする車両電源システム。 - 上記キャパシタは、上記キャパシタの定格電圧が上記バッテリの定格電圧よりも高くなるように構成されている請求項1記載の車両電源システム。
- 上記バッテリ及び上記キャパシタは、上記バッテリの正極端子と、上記キャパシタの負極端子を接続することにより直列に接続されている請求項1又は2に記載の車両電源システム。
- 上記キャパシタは、蓄積可能な電荷が、上記バッテリに蓄積可能な電荷よりも少なく構成されている請求項1乃至3の何れか1項に記載の車両電源システム。
- さらに、上記バッテリ及び上記キャパシタに電気的に接続されたDC−DCコンバータを有する請求項1乃至4の何れか1項に記載の車両電源システム。
- 上記給電機器は、電気ケーブルを介して上記外部電源に接続されるように構成されている請求項1乃至5の何れか1項に記載の車両電源システム。
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CN202010076663.7A CN111516518B (zh) | 2019-02-05 | 2020-01-23 | 车辆电源系统 |
US16/752,702 US11351876B2 (en) | 2019-02-05 | 2020-01-27 | Vehicle power supply system |
EP20154126.5A EP3693206A1 (en) | 2019-02-05 | 2020-01-28 | Vehicle power supply system, and vehicle |
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US11476692B2 (en) * | 2020-03-27 | 2022-10-18 | Intel Corporation | Turbo support for systems with limited battery power |
DE102020131537A1 (de) * | 2020-11-27 | 2022-06-02 | ACD Antriebstechnik GmbH | Energiespeicherung mit Stromquellenschaltung |
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US20200247253A1 (en) | 2020-08-06 |
EP3693206A1 (en) | 2020-08-12 |
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