JP2006311775A - 負荷駆動装置およびそれを搭載した車両 - Google Patents
負荷駆動装置およびそれを搭載した車両 Download PDFInfo
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
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- B60L2240/00—Control parameters of input or output; Target parameters
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- B60L2240/00—Control parameters of input or output; Target parameters
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- B60L2240/545—Temperature
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Abstract
【解決手段】 昇降圧コンバータ20の上アームを構成するIPM22とA/C40およびDC/DCコンバータ50の各補機との間にリレーSMR3が設けられる。制御装置70は、主バッテリBの異常を検出すると、システムリレー10をオフする。そして、制御装置70は、システムリレー10がオフされたバッテリレス制御中にIPM22の短絡故障が検出されると、リレーSMR3をオフする。
【選択図】 図1
Description
この負荷駆動装置においては、電圧変換器の降圧機能が損なわれるとリレーがオフされるので、高電圧系の第1の電源ラインから降圧不能な電圧変換器を介して低電圧系の第2の電源ラインに接続された負荷装置へ高電圧系の第1の電源ラインの電圧が印加されることが防止される。
好ましくは、負荷駆動装置に含まれ、電圧変換器から電圧の供給を受ける負荷装置は、車載用の補機である。
図1は、この発明の実施の形態1による負荷駆動装置を搭載した電動車両の全体ブロック図である。図1を参照して、この電動車両100は、主バッテリBと、システムリレー10と、昇降圧コンバータ20と、インバータ30と、モータジェネレータMGと、エアコン(A/C)40と、DC/DCコンバータ50と、補機バッテリ60と、制御装置70と、コンデンサC1,C2と、電源ラインPL1,PL2と、接地ラインSLとを備える。
図4は、この発明の実施の形態2による負荷駆動装置を搭載した電動車両の全体ブロック図である。図4を参照して、この電動車両100Aは、図1に示した実施の形態1における電動車両100の構成において、昇降圧コンバータ20およびリレーSMR3に代えて、それぞれ昇降圧コンバータ20AおよびリレーSMR4を備える。
Claims (12)
- 第1の電源ラインの電圧を降圧して第2の電源ラインに供給する電圧変換器と、
前記第2の電源ラインに接続され、前記電圧変換器から電圧の供給を受ける負荷装置と、
前記電圧変換器と前記負荷装置との間に接続されるリレーとを備える負荷駆動装置。 - 前記第2の電源ラインに接続される直流電源と、
前記第1の電源ラインに接続される発電装置とをさらに備える、請求項1に記載の負荷駆動装置。 - 前記リレーは、前記電圧変換器の降圧機能が損なわれたときオフされる、請求項1に記載の負荷駆動装置。
- 前記電圧変換器は、前記第1の電源ラインと前記第2の電源ラインとの間に接続される上アームと前記第2の電源ラインと接地ラインとの間に接続される下アームとを少なくとも含むチョッパ回路からなり、
前記リレーは、前記上アームと前記負荷装置との間に接続され、前記上アームの短絡故障が検出されるとオフされる、請求項1に記載の負荷駆動装置。 - 前記上アームからの短絡故障信号に基づいて前記リレーへオフ指令を出力する制御手段をさらに備える、請求項4に記載の負荷駆動装置。
- 前記第2の電源ラインに電気的に接続されているときに前記電圧変換器からの電流が供給される直流電源をさらに備え、
前記リレーは、前記直流電源が前記第2の電源ラインから電気的に切離されており、かつ、前記電圧変換器の降圧機能が損なわれたとき、オフされる、請求項1に記載の負荷駆動装置。 - 前記電圧変換器は、前記第1の電源ラインと前記第2の電源ラインとの間に接続される上アームと前記第2の電源ラインと接地ラインとの間に接続される下アームとを少なくとも含むチョッパ回路からなり、
前記リレーは、前記上アームと前記負荷装置との間に接続され、前記直流電源が前記第2の電源ラインから電気的に切離されているときに前記上アームの短絡故障が検出されるとオフされる、請求項6に記載の負荷駆動装置。 - 前記直流電源と前記第2の電源ラインとの間に接続されるシステムリレーをさらに備え、
前記リレーは、前記システムリレーがオフされており、かつ、前記電圧変換器の降圧機能が損なわれたとき、オフされる、請求項6に記載の負荷駆動装置。 - 前記直流電源の異常が検出されると前記システムリレーへオフ指令を出力するバッテリレス制御手段と、
前記バッテリレス制御手段によって前記システムリレーがオフされているとき、前記上アームからの短絡故障信号に基づいて前記リレーへオフ指令を出力するフェールセーフ制御手段とをさらに備える、請求項8に記載の負荷駆動装置。 - 前記電圧変換器は、前記直流電源から前記第2の電源ラインに供給される電圧を昇圧して前記第1の電源ラインに供給する昇圧機能をさらに有する、請求項6から請求項9のいずれか1項に記載の負荷駆動装置。
- 請求項1から請求項10のいずれか1項に記載の負荷駆動装置を搭載した車両。
- 前記負荷駆動装置に含まれ、前記電圧変換器から電圧の供給を受ける前記負荷装置は、車載用の補機である、請求項11に記載の車両。
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Cited By (14)
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JP2008236943A (ja) * | 2007-03-22 | 2008-10-02 | Toyota Motor Corp | 負荷駆動装置 |
JP2009027888A (ja) * | 2007-07-23 | 2009-02-05 | Honda Motor Co Ltd | 車両 |
JP2009081959A (ja) * | 2007-09-26 | 2009-04-16 | Toyota Motor Corp | 昇降圧コンバータの制御装置 |
JP2009078767A (ja) * | 2007-09-27 | 2009-04-16 | Jtekt Corp | 電動パワーステアリング装置 |
JP2009227078A (ja) * | 2008-03-21 | 2009-10-08 | Toyota Motor Corp | 動力システムおよびその制御方法並びに車両 |
JP2010254038A (ja) * | 2009-04-22 | 2010-11-11 | Toyota Motor Corp | ハイブリッド自動車および異常判定方法 |
WO2011036785A1 (ja) * | 2009-09-28 | 2011-03-31 | トヨタ自動車株式会社 | 車両用制御装置 |
JP2011116328A (ja) * | 2009-12-04 | 2011-06-16 | Hyundai Motor Co Ltd | ハイブリッド車両のモータ駆動システム及びその制御方法 |
JP2011259531A (ja) * | 2010-06-04 | 2011-12-22 | Denso Corp | インバータ回路 |
JP2012100500A (ja) * | 2010-11-05 | 2012-05-24 | Fuji Electric Co Ltd | 複合電源システム |
JP2013233077A (ja) * | 2007-11-07 | 2013-11-14 | Sk Innovation Co Ltd | スイッチを利用した電気自動車用2次電池の安全装置及び保護方法 |
JP2013240165A (ja) * | 2012-05-14 | 2013-11-28 | Suzuki Motor Corp | 車両用電源装置 |
EP2117106A4 (en) * | 2007-01-04 | 2017-10-04 | Toyota Jidosha Kabushiki Kaisha | Power supply system, vehicle using the same, and its control method |
JP2018046661A (ja) * | 2016-09-14 | 2018-03-22 | トヨタ自動車株式会社 | 車両用電源装置 |
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