JP2008154302A - 電源システムおよびそれを備える車両、ならびにその制御方法 - Google Patents
電源システムおよびそれを備える車両、ならびにその制御方法 Download PDFInfo
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- JP2008154302A JP2008154302A JP2006336525A JP2006336525A JP2008154302A JP 2008154302 A JP2008154302 A JP 2008154302A JP 2006336525 A JP2006336525 A JP 2006336525A JP 2006336525 A JP2006336525 A JP 2006336525A JP 2008154302 A JP2008154302 A JP 2008154302A
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- power
- power storage
- value
- storage units
- supply system
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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
- B60K6/42—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 the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- B60L58/13—Maintaining the SoC within a determined range
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Abstract
【解決手段】電池温度Tb1>電池温度Tb2が成立するときには、蓄電部6−2に対する昇温要求が相対的に大きくなる。そのため、蓄電部6−2に対する目標電力値P2 *を優先的に決定する。電池温度Tb1と電池温度Tb2との温度偏差に応じて決定される分配率Pr2(0.5≦分配率Pr2≦1.0)に目標電力値P2 *を乗じて、目標電力値P2 *が算出される。一方、目標電力値P1 *は、要求電力値PS *から目標電力値P2 *を減じて算出される。
【選択図】図5
Description
好ましくは、複数の蓄電部は、同一の筐体内に配置される。
する電源システムの制御方法である。電源システムは、負荷装置と電源システムとの間を電気的に接続するための電力線と、複数の蓄電部と電力線との間にそれぞれ設けられ、各々が対応の蓄電部の充放電を制御可能に構成された複数のコンバータ部とを備える。そして、制御方法は、複数の蓄電部の各々の温度を取得する温度取得ステップと、負荷装置からの要求電力値を温度取得ステップにおいて取得された複数の蓄電部の温度に応じて分配し、複数の蓄電部の各々に対する目標電力値を決定する目標電力値決定ステップと、目標電力値決定ステップにおいて決定された目標電力値に従って、複数のコンバータ部を制御するコンバータ制御ステップとを含む。
34−1,34−2は、動力伝達機構36または駆動軸38を介してエンジン(図示しない)とも機械的に連結される。そして、駆動ECU32によって、エンジンの発生する駆動力とモータジェネレータ34−1,34−2の発生する駆動力とが最適な比率となるように制御が実行される。このようなハイブリッド車両に適用される場合には、一方のモータジェネレータをもっぱら電動機として機能させ、他方のモータジェネレータをもっぱら発電機として機能させるように構成することもできる。
線LN1Cと、配線LN1Bと、スイッチング素子であるトランジスタQ1A,Q1Bと、ダイオードD1A,D1Bと、インダクタL1とを含む。
,6−2とコンバータ部8−1,8−2とを接続する一対の電力線の一方の線に介挿され、蓄電部6−1,6−2の入出力に係る電池電流Ib1,Ib2を検出し、その検出結果をコンバータECU2および電池ECU4へ出力する。
図4は、この発明の実施の形態に従うコンバータECU2における制御構造を示すブロック図である。
電池温度Tb1の温度偏差(電池温度Tb2−電池温度Tb1)を算出する。PID制御部85は、比例要素、積分要素および微分要素を含んで構成され、減算部84から出力される温度偏差を受けて、所定の比例ゲイン、積分時間および微分時間に従って分配率Pr1を算出する。
た決定ロジックに従って、要求電力値PS *を電池温度Tb1,Tb2に応じて分配し、それぞれ蓄電部6−1,6−2に対する目標電力値P1 *,P2 *を決定する(ステップS106)。さらに、コンバータECU2は、蓄電部6−1,6−2の実績電力値がそれぞれ決定した目標電力値P1 *,P2 *に一致するように、コンバータ部8−1,8−2における電圧変換動作を制御する(ステップS108)。
上述したこの発明の実施の形態に従う電源システム1において、目標電力値P1 *,P2 *の決定に用いられる決定ロジックに代えて、代替の決定ロジックを採用してもよい。以下では、要求電力値PS *を電池温度Tb1,Tb2に応じて分配して目標電力値P1 *,P2 *を決定するための、本実施の形態の第1変形例に従う構成を説明する。
上述したこの発明の実施の形態およびその第1変形例では、要求電力値PS *を電池温度Tb1,Tb2に応じて分配して目標電力値P1 *,P2 *を決定する構成について例示したが、蓄電部を構成する電池の種類によっては、その充電状態に応じて目標電力値P1 *,P2 *を決定することが望ましい。
加減算部96は、「0.5」(50%)に対して、乗算部95で算出された補正値(β・ΔSOC)を加えて、目標電力値P1 *のための分配率として出力する。また、加減算部98は、「0.5」(50%)に対して、乗算部95で算出された補正値(β・ΔSOC)を減じて、目標電力値P2 *のための分配率として出力する。そして、乗算部97は、要求電力値PS *に加減算部96で算出された分配率を乗じた値を目標電力値P1 *として出力し、乗算部99は、要求電力値PS *に加減算部98で算出された分配率を乗じた値を目標電力値P2 *として出力する。
加減算部96は、「0.5」(50%)に対して、乗算部95で算出された補正値(β・ΔSOC)を減じて、目標電力値P1 *のための分配率として出力する。また、加減算部98は、「0.5」(50%)に対して、乗算部95で算出された補正値(β・ΔSOC)を加えて、目標電力値P2 *のための分配率として出力する。乗算部97,99での処理は、上述と同様である。
さらに、上述したこの発明の実施の形態の第1変形例および第2変形例の特徴的構成を併せ持つような決定ロジックを採用してもよい。
目標電力値P1 *=(0.5−α・(Tb1−Tb2)+β・(SOC1−SOC2))×PS *
目標電力値P2 *=(0.5+α・(Tb1−Tb2)−β・(SOC1−SOC2))×PS *となる。
目標電力値P1 *=(0.5−α・(Tb1−Tb2)−β・(SOC1−SOC2))×PS *
目標電力値P2 *=(0.5+α・(Tb1−Tb2)+β・(SOC1−SOC2))×PS *
また、(i)および(ii)のいずれの場合であっても、P1 *+P2 *=PS *の関係が成立するため、蓄電部6−1,6−2におけるSOC1,SOC2の不均一にかかわらず、駆動力発生部3からの要求電力値PS *を満足させることができる。
電池ECU、6−1,6−2 蓄電部、8−1,8−2 コンバータ部(CONV)、10−1,10−2 電池電流検出部、12−1,12−2 電池電圧検出部、14−1,14−2 電池温度検出部、18 供給電圧検出部、20 電池パック、22 取込口、24 冷却空気、26 廃棄空気、28 排出口、30−1,30−2 インバータ部(INV)、32 駆動ECU、34−1,34−2 モータジェネレータ(MG1,MG2)、36 動力伝達機構、38 駆動軸、40−1,40−2 チョッパ回路、50
モード判定部、52 目標電力値決定部、60,70,80,83,84,87,88,90,94 減算部、62,72,82,86,89,91,93,95,97,99
乗算部、64,74 PI制御部、66,76 変調部(MOD)、81,85 PID制御部、92 加算部、96,98 加減算部、100 車両、C,C1 平滑コンデンサ、D1A,D1B ダイオード、L1 インダクタ、LN1A 正母線、LN1B 配線、LN1C 負母線、MNL 主負母線、MPL 主正母線、Q1A,Q1B トランジスタ。
Claims (9)
- 各々が充放電可能に構成された複数の蓄電部を有する電源システムであって、
負荷装置と前記電源システムとの間を電気的に接続するための電力線と、
前記複数の蓄電部と前記電力線との間にそれぞれ設けられ、各々が対応の前記蓄電部の充放電を制御可能に構成された複数のコンバータ部と、
前記複数の蓄電部の各々の温度を取得する温度取得手段と、
前記負荷装置からの要求電力値を前記温度取得手段によって取得された前記複数の蓄電部の温度に応じて分配し、前記複数の蓄電部の各々に対する目標電力値を決定する目標電力値決定手段と、
前記目標電力値決定手段によって決定された前記目標電力値に従って前記複数のコンバータ部を制御するコンバータ制御手段とを備える、電源システム。 - 前記目標電力値決定手段は、他の蓄電部に比較して相対的に温度の高い蓄電部について、前記要求電力値のうち分配される割合がより小さくなるように前記目標電力値を決定する、請求項1に記載の電源システム。
- 前記目標電力値決定手段は、他の蓄電部との間の温度差が所定のしきい値以上になっている高温の蓄電部について、対応の前記目標電力値を略ゼロに決定する、請求項1または2に記載の電源システム。
- 前記電源システムは、前記複数の蓄電部の各々の充電状態を示す状態値を取得する状態値取得手段をさらに備え、
目標電力値決定手段は、前記複数の蓄電部の温度に加えて、前記状態値取得手段によって取得された前記複数の蓄電部の状態値に応じて、前記複数の蓄電部の各々に対する前記目標電力値を決定する、請求項1〜3のいずれか1項に記載の電源システム。 - 前記目標電力値決定手段は、他の蓄電部に比較して相対的に充電状態の高い蓄電部について、前記電源システムから前記負荷装置への電力供給時に、前記要求電力値のうち分配される割合がより大きくなるように前記目標電力値を決定するとともに、前記負荷装置から前記電源システムへの電力供給時に、前記要求電力値のうち分配される割合がより小さくなるように前記目標電力値を決定する、請求項1〜4のいずれか1項に記載の電源システム。
- 前記複数の蓄電部の各々は、リチウムイオン電池からなる、請求項4または5に記載の電源システム。
- 前記複数の蓄電部は、同一の筐体内に配置される、請求項1〜6のいずれか1項に記載の電源システム。
- 請求項1〜7のいずれか1項に記載の電源システムと、
前記電源システムから電力の供給を受けて車両の駆動力を発生する駆動力発生部とを備える、車両。 - 各々が充放電可能に構成された複数の蓄電部を有する電源システムの制御方法であって、
前記電源システムは、
負荷装置と前記電源システムとの間を電気的に接続するための電力線と、
前記複数の蓄電部と前記電力線との間にそれぞれ設けられ、各々が対応の前記蓄電部の充放電を制御可能に構成された複数のコンバータ部とを備え、
前記制御方法は、
前記複数の蓄電部の各々の温度を取得する温度取得ステップと、
前記負荷装置からの要求電力値を前記温度取得ステップにおいて取得された前記複数の蓄電部の温度に応じて分配し、前記複数の蓄電部の各々に対する目標電力値を決定する目標電力値決定ステップと、
前記目標電力値決定ステップにおいて決定された前記目標電力値に従って前記複数のコンバータ部を制御するコンバータ制御ステップとを含む、制御方法。
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010104178A (ja) * | 2008-10-24 | 2010-05-06 | Sanyo Electric Co Ltd | 電源装置及び電動車輌 |
JP2010104179A (ja) * | 2008-10-24 | 2010-05-06 | Sanyo Electric Co Ltd | 電源装置及び電動車輌 |
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JP2012200140A (ja) * | 2008-03-27 | 2012-10-18 | Toyota Motor Corp | 車両 |
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JP7399296B2 (ja) | 2020-07-28 | 2023-12-15 | 三菱電機株式会社 | 充放電制御装置および充放電制御方法 |
JP2022099909A (ja) * | 2020-12-23 | 2022-07-05 | 本田技研工業株式会社 | 充電制御方法及び電動車両 |
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EP2093856B1 (en) | 2017-03-01 |
CN101558544A (zh) | 2009-10-14 |
WO2008072762A1 (ja) | 2008-06-19 |
US20100207587A1 (en) | 2010-08-19 |
CN101558544B (zh) | 2012-03-07 |
RU2397592C1 (ru) | 2010-08-20 |
EP2093856A1 (en) | 2009-08-26 |
BRPI0720290B1 (pt) | 2018-07-17 |
JP4600390B2 (ja) | 2010-12-15 |
US8344699B2 (en) | 2013-01-01 |
BRPI0720290A2 (pt) | 2014-02-04 |
EP2093856A4 (en) | 2015-06-03 |
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