JPWO2019116997A1 - 車載電源装置 - Google Patents
車載電源装置 Download PDFInfo
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- 238000007599 discharging Methods 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims description 6
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
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- B60L2240/547—Voltage
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- H—ELECTRICITY
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- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
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- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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- H—ELECTRICITY
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- 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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- 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
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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Abstract
Description
[車載電源装置10の構成]
まず、図1を参照しながら車載電源装置について説明する。
次に、図2および図3を参照しながら車載電源装置10が搭載された車両20の構成およびその動作について説明する。
ここではまず、車両用バッテリー12の端子電圧が車両20を起動するための起動用電圧Vbの下限値以上である時の動作の一例について説明する。ここでは、車両20は正常な起動が可能な状態である。
つぎに、車両用バッテリー12の端子電圧が車両20を起動するための起動用電圧Vbの下限値未満である場合について説明する。つまり、車両20が正常な起動が不可能なときの車両20の動作の一例について図2および図3を参照しながら説明する。
本開示の車載電源装置10は、高電圧バッテリー11と、高電圧バッテリー11の出力電圧より低い起動用電圧Vbを出力する車両用バッテリー12と、複数のリレー部15と制御部16とを有し、複数のリレー部15は起動用電圧Vbを用いて接続もしくは遮断されることで、高電圧バッテリー11から受電した電力を分配して出力するもしくは高電圧バッテリー11から受電した電力を遮断し、制御部16は起動用電圧Vbを用いて複数のリレー部15の接続もしくは遮断を制御し、起動時に複数のリレー部15が接続され、起動停止時に複数のリレー部15が遮断される、電気接続箱13を備える。更に、車載電源装置10は、蓄電部17と非接触受電部18と放電部19とを有し、複数のリレー部15の1つであるバッテリーリレー部15Aに駆動電力を供給し、制御部16に駆動電力を供給し、非接触受電部18は蓄電部17の充電経路に接続され非接触による受電が可能で、放電部19は蓄電部17の放電経路に接続され、バッテリーリレー部15Aは高電圧バッテリー11から前記車両用バッテリー12へ充電電力を供給する、バックアップ電源部14を備える。前記第1のバッテリーから出力される起動用電圧Vbが所定の下限値未満であるとき、外部から非接触受電部18へ供給される電力によって蓄電部17が充電され、蓄電部17に充電された電力が放電部19を介して制御部16へ供給されることによって制御部16が起動可能となり、制御部16の起動後にバッテリーリレー部15Aが、放電部19を介して蓄電部17から供給された電力を用いて、制御部16によって接続状態へと制御され、高電圧バッテリー11から車両用バッテリー12へ電力が供給されることによって、車両用バッテリー12は下限値Vb以上の電圧で出力可能となり、複数のリレー部15が接続可能となる。
2,11 高電圧バッテリー(第1のバッテリー)
3,12 車両用バッテリー(第2のバッテリー)
4,13 電気接続箱
5,6 DCDCコンバータ
7,8 負荷
9 車両
14 バックアップ電源部
15 リレー部
15A バッテリーリレー部
16 制御部
17 蓄電部
18 非接触受電部
19 放電部
20 車両
21 車体
22 負荷
23 給電部
24 発信器
25 起動スイッチ
26 車体制御部
27 バックアップ制御部
28 DCDCコンバータ
28A バッテリーコンバータ
本開示の車載電源装置10は、高電圧バッテリー11と、高電圧バッテリー11の出力電圧より低い起動用電圧Vbを出力する車両用バッテリー12と、複数のリレー部15と制御部16とを有し、複数のリレー部15は起動用電圧Vbを用いて接続もしくは遮断されることで、高電圧バッテリー11から受電した電力を分配して出力するもしくは高電圧バッテリー11から受電した電力を遮断し、制御部16は起動用電圧Vbを用いて複数のリレー部15の接続もしくは遮断を制御し、起動時に複数のリレー部15が接続され、起動停止時に複数のリレー部15が遮断される、電気接続箱13を備える。更に、車載電源装置10は、蓄電部17と非接触受電部18と放電部19とを有し、複数のリレー部15の1つであるバッテリーリレー部15Aに駆動電力を供給し、制御部16に駆動電力を供給し、非接触受電部18は蓄電部17の充電経路に接続され非接触による受電が可能で、放電部19は蓄電部17の放電経路に接続され、バッテリーリレー部15Aは高電圧バッテリー11から前記車両用バッテリー12へ充電電力を供給する、バックアップ電源部14を備える。車両用バッテリー12から出力される起動用電圧Vbが所定の下限値未満であるとき、外部から非接触受電部18へ供給される電力によって蓄電部17が充電され、蓄電部17に充電された電力が放電部19を介して制御部16へ供給されることによって制御部16が起動可能となり、制御部16の起動後にバッテリーリレー部15Aが、放電部19を介して蓄電部17から供給された電力を用いて、制御部16によって接続状態へと制御され、高電圧バッテリー11から車両用バッテリー12へ電力が供給されることによって、車両用バッテリー12は下限値Vb以上の電圧で出力可能となり、複数のリレー部15が接続可能となる。
Claims (3)
- 車載電源装置であって、
第1のバッテリーと、
前記第1のバッテリーの出力電圧より低い起動用電圧を出力する第2のバッテリーと、
複数のリレー部と制御部とを有し、前記複数のリレー部は前記起動用電圧を用いて接続もしくは遮断されることで、前記第1のバッテリーから受電した電力を分配して出力するもしくは前記第1のバッテリーから受電した電力を遮断し、前記制御部は前記起動用電圧を用いて前記複数のリレー部の接続もしくは遮断を制御し、起動時に前記複数のリレー部が接続され、起動停止時に前記複数のリレー部が遮断される、電気接続箱と、
蓄電部と非接触受電部と放電部とを有し、前記複数のリレー部の1つであるバッテリーリレー部に駆動電力を供給し、前記制御部に駆動電力を供給し、前記非接触受電部は前記蓄電部の充電経路に接続され非接触による受電が可能で、前記放電部は前記蓄電部の放電経路に接続され、前記バッテリーリレー部は前記第1のバッテリーから前記第2のバッテリーへ充電電力を供給する、バックアップ電源部と、
を備え、
前記第1のバッテリーから出力される前記起動用電圧が所定の下限値未満であるとき、前記車載電源装置の外部から前記非接触充電部へ供給される電力によって前記蓄電部が充電され、
前記蓄電部に充電された電力が前記放電部を介して前記制御部へ供給されることによって前記制御部が起動可能となり、
前記制御部の起動後に前記バッテリーリレー部が、前記放電部を介して前記蓄電部から供給された電力を用いて、前記制御部によって接続状態へと制御され、
前記第1のバッテリーから前記第2のバッテリーへ電力が供給されることによって、前記第2のバッテリーは前記下限値以上の電圧で出力可能となり、前記複数のリレー部が接続可能となる車載電源装置。 - 前記蓄電部の蓄電素子には電気二重層コンデンサが用いられる、
請求項1に記載の車載電源装置。 - 前記バッテリーリレー部と前記第2のバッテリーとの間に配置されるバッテリーコンバータをさらに備え、
前記第1のバッテリーから前記バッテリーリレー部を介して前記バッテリーコンバータに電力が供給されることで、前記バッテリーコンバータは駆動され、
前記第1のバッテリーは、前記バッテリーコンバータによって変換された電圧で前記第2のバッテリーへ電力を供給する、
請求項1または2に記載の車載電源装置。
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