JP2008306823A - 車両の電源装置 - Google Patents
車両の電源装置 Download PDFInfo
- Publication number
- JP2008306823A JP2008306823A JP2007150720A JP2007150720A JP2008306823A JP 2008306823 A JP2008306823 A JP 2008306823A JP 2007150720 A JP2007150720 A JP 2007150720A JP 2007150720 A JP2007150720 A JP 2007150720A JP 2008306823 A JP2008306823 A JP 2008306823A
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- JP
- Japan
- Prior art keywords
- power
- current
- power storage
- storage device
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007599 discharging Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000009499 grossing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910052987 metal hydride Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- -1 nickel metal hydride Chemical class 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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Abstract
【解決手段】車両の電源装置は、主負荷(14,22)に対して電気的に並列に設けられたバッテリB1,B2と、バッテリB1と主負荷との間に設けられた昇圧コンバータ12Aと、バッテリB2と主負荷との間に設けられた昇圧コンバータ12Bと、補機バッテリB3と、DC/DCコンバータ33と、補機バッテリB3またはDC/DCコンバータ33からの電力によって駆動される補機負荷35とを備える。制御装置30は、補機負荷35に流れる電流変動を反映させてバッテリB1,B2に対する充電電流または放電電流を定める。
【選択図】図1
Description
図1は、本発明の実施の形態に係る車両1の主たる構成を示す図である。
図1、図2を参照して、インバータ14は、U相アーム15と、V相アーム16と、W相アーム17とを含む。U相アーム15,V相アーム16,およびW相アーム17は、電源ラインPL2と接地ラインSL2との間に並列に接続される。
図1、図3を参照して、昇圧コンバータ12Aは、一方端が電源ラインPL1Aに接続されるリアクトルL1と、電源ラインPL2と接地ラインSL2との間に直列に接続されるIGBT素子Q1,Q2と、IGBT素子Q1,Q2にそれぞれ並列に接続されるダイオードD1,D2とを含む。
図1に開示される車両の電源装置は、主負荷(14,22)に対して電気的に並列に設けられた第1および第2の蓄電装置(B1,B2)と、第1の蓄電装置(B1)と主負荷との間に設けられた第1の電力変換器(12A)と、第2の蓄電装置(B2)と主負荷との間に設けられた第2の電力変換器(12B)と、補機蓄電装置(B3)と、第1の電力変換器と第1の蓄電装置とを結ぶ経路上から分岐される電流I3によって補機蓄電装置を充電する第3の電力変換器(33)と、補機蓄電装置(B3)または第3の電力変換器(33)からの電力によって駆動される補機負荷35と、第1〜第3の電力変換器(12A,12B,33)を制御する制御装置30とを備える。制御装置30は、補機負荷35に流れる電流変動を反映させて第1および第2の蓄電装置(B1,B2)に対する充電電流または放電電流を定める。
図4においては、電流を水の流れに模してある。充電器6からは充電電流IcgがバッテリB1に相当するタンクに流入している。昇圧コンバータ12A,12Bは、合わせてバッテリB2のための充電器として動作し、バッテリB1側からバッテリB2側に電流I2を供給する。
Icg=I1+I2+I3 ・・・(1)
IcgがIconst1、I2がIconst2に定電流制御されているので、DC/DCコンバータの停止前の電流値I1をI1A、停止後(I3=0)の電流値I1をI1Bとすると以下の式(2)、(3)が成立する。
Iconst1=I1A+Iconst2+I3 ・・・(2)
Iconst1=I1B+Iconst2 ・・・(3)
式(2)、(3)より、次式(4)が成立することがわかる。
I3=I1B−I1A ・・・(4)
再び図1、図5を参照して、ステップS3で、DC/DCコンバータ33を一旦停止させた後には、ステップS4において電流センサ11Aで測定した電流値I1を電流値I1Bとしてメモリ27に記憶する。さらにステップS5において、ステップS2で記憶しておいた電流値I1AとステップS4で記憶しておいた電流値I1Bの差分ΔI=I1B−I1Aを算出する。この差分は、上記の式(4)でわかるようにDC/DCコンバータ33に供給されていた電流I3に等しい。
Iconst2=(Iconst1−ΔI)/2 ・・・(5)
このように昇圧コンバータ12Bに対する指令値を更新することで、補機負荷の消費電流が変動した後においても、バッテリB1に充電される電流I1とバッテリB2に充電される電流I2とが等しく設定される。
実施の形態1では、一定時間経過ごとに電流I3の測定を行なったが、実施の形態2においてはバッテリB1,B2の充電状態の差が所定値を超えた場合に電流I3の測定を行なって、バッテリB1,B2の充電電流の補正を行なう。車両の構成については、図1で示したとおりであるので、説明は繰返さない。
Claims (8)
- 主負荷に対して電気的に並列に設けられた第1および第2の蓄電装置と、
前記第1の蓄電装置と前記主負荷との間に設けられた第1の電力変換器と、
前記第2の蓄電装置と前記主負荷との間に設けられた第2の電力変換器と、
補機蓄電装置と、
前記第1の電力変換器と前記第1の蓄電装置とを結ぶ経路上から分岐される電流によって前記補機蓄電装置を充電する第3の電力変換器と、
前記補機蓄電装置または前記第3の電力変換器からの電力によって駆動される補機負荷と、
前記第1〜第3の電力変換器を制御する制御装置とを備え、
前記制御装置は、前記補機負荷に流れる電流変動を反映させて前記第1および第2の蓄電装置に対する充電電流または放電電流を定める、車両の電源装置。 - 車両外部から与えられる電力により前記第1および第2の蓄電装置を充電するための充電器をさらに備え、
前記充電器は、前記第1の蓄電装置に接続され、
前記第1および第2の電力変換器は、前記充電器から与えられる電流の一部を分岐して前記第2の蓄電装置を充電する他の充電器として動作する、請求項1に記載の車両の電源装置。 - 前記第1の蓄電装置への充放電電流を検出する電流センサをさらに備え、
前記制御装置は、前記第3の電力変換器を一時的に停止させ、停止前と停止後の前記第1の蓄電装置への充放電電流の差に基づいて、前記第3の電力変換器に向けて分岐される電流を算出し、前記分岐される電流に基づいて前記第1,第2の電力変換器の動作を補正する、請求項2に記載の車両の電源装置。 - 車両外部からの充電時において、前記第1の電力変換器は、前記第1の蓄電装置側から前記主負荷側に向けて昇圧動作を行ない、
車両外部からの充電時において、前記第2の電力変換器は、前記主負荷側から前記第2の蓄電装置側に向けて定電流が流れるように動作を行なう、請求項3に記載の車両の電源装置。 - 前記制御装置は、補機負荷における電力消費の変動があったと推定される場合に、前記第1の電力変換器と前記第1の蓄電装置とを結ぶ経路上から第3の電力変換器に向けて分岐される電流の算出を行なう、請求項1に記載の車両の電源装置。
- 前記制御装置は、所定時間が経過するごとに前記補機負荷における電力消費の変動があったと推定する、請求項5に記載の車両の電源装置。
- 前記制御装置は、前記第1、第2の蓄電装置の充電状態の差が所定値を超えた場合に前記補機負荷における電力消費の変動があったと推定する、請求項5に記載の車両の電源装置。
- 前記制御装置は、前記第1の蓄電装置の充電状態と前記第2の蓄電装置の充電状態とを算出し、前記第1、第2の蓄電装置の充電状態の差が拡大しないように前記第1〜第3の電力変換器を制御する、請求項1に記載の車両の電源装置。
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US12/451,163 US8143859B2 (en) | 2007-06-06 | 2008-05-30 | Power supply apparatus for vehicle |
RU2009149698A RU2413352C1 (ru) | 2007-06-06 | 2008-05-30 | Устройство электропитания для транспортного средства |
CN2008800186874A CN101682202B (zh) | 2007-06-06 | 2008-05-30 | 车辆的电源装置 |
EP08765223.6A EP2154764B1 (en) | 2007-06-06 | 2008-05-30 | Power supply unit of vehicle |
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- 2008-05-30 WO PCT/JP2008/060410 patent/WO2008149964A1/ja active Application Filing
- 2008-05-30 US US12/451,163 patent/US8143859B2/en active Active
- 2008-05-30 RU RU2009149698A patent/RU2413352C1/ru not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
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EP2154764A1 (en) | 2010-02-17 |
EP2154764B1 (en) | 2019-06-26 |
JP4874874B2 (ja) | 2012-02-15 |
US8143859B2 (en) | 2012-03-27 |
EP2154764A4 (en) | 2017-06-14 |
WO2008149964A1 (ja) | 2008-12-11 |
CN101682202A (zh) | 2010-03-24 |
CN101682202B (zh) | 2012-08-08 |
US20100141213A1 (en) | 2010-06-10 |
RU2413352C1 (ru) | 2011-02-27 |
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