JP5301657B2 - 蓄電装置 - Google Patents
蓄電装置 Download PDFInfo
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- JP5301657B2 JP5301657B2 JP2011505917A JP2011505917A JP5301657B2 JP 5301657 B2 JP5301657 B2 JP 5301657B2 JP 2011505917 A JP2011505917 A JP 2011505917A JP 2011505917 A JP2011505917 A JP 2011505917A JP 5301657 B2 JP5301657 B2 JP 5301657B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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Description
本発明の他の目的、特徴及び利点は添付図面に関する以下の本発明の実施例の記載から明らかになるであろう。
SOC=MAP(OCV) …(2)
OCV:電池部110の起電力
CCV:電圧計測部160の計測信号から取得した電池部110の端子間
電圧
I:無負荷時又は充放電時の電流計測部170の計測信号から取得し
た電池部110の電流
R:予め求めて状態検知部131に記憶させた或いはリアルタイムに
求めた電池部110の内部抵抗
Vp:分極電圧
SOC0:SOCの初期値
Q:電池111の満充電時の容量
I:電流計測部170の計測信号から取得した電池部110の電流
最高SOC=MAX(SOC1,SOC2,・・・,SOCN) …(5)
最低SOC=MIN(SOC1,SOC2,・・・,SOCN) …(6)
…(7)
ΔSOC2=(平均SOC−最低SOC)/|SOCinit−平均SOC|
…(8)
…(9)
ΔSOC2=(最高SOC−平均SOC)/|SOCinit−平均SOC|
…(10)
×|SOCinit−SOCmodule| …(11)
予測最低SOC=SOCmodule−ΔSOC2
×|SOCinit−SOCmodule| …(12)
×|SOCinit−SOCmodule| …(13)
予測最低SOC=SOCmodule−ΔSOC1
×|SOCinit−SOCmodule| …(14)
…(15)
予測最低SOC2=予測最低SOC−(SOCinitave−SOCinitmin)
…(16)
予測最高SOC及び予測最低SOC:充電状態に応じて変更される変数
SOCinitmax−SOCinitave及びSOCinitave−SOCinitmin:充電状態に応じて変更されない定数
Idmax=(OCV−Vmin)/Rz …(18)
Vmax:電池111の上限電圧
Vmin:電池111の下限電圧
Rz:電池111の等価インピーダンス
IcmaxSOCmodule) …(19)
Idmax2=MIN(IdmaxSOCmax,IdmaxSOCmin,
IdmaxSOCmodule) …(20)
SOCinit_last2=|SOCinit2−SOClast2|
SOCinit_lastN=|SOCinitN−SOClastN|
…(21)
・・・SOCinit_lastN)/N …(22)
ΔSOCinit_last2=SOCinit_last2/SOCinit_last_ave
ΔSOCinit_lastN=SOCinit_lastN/SOCinit_last_ave
…(23)
×(SOCmodule_cur−SOCmodule_init)
予測SOC2=SOCinit2+ΔSOCinit_last2
×(SOCmodule_cur−SOCmodule_init)
予測SOCN=SOCinitN+ΔSOCinit_lastN
×(SOCmodule_cur−SOCmodule_init)
…(24)
予測SOCN) …(25)
予測最低SOC=MIN(予測SOC1,予測SOC2,…,
予測SOCN) …(26)
上記記載は、実施例についてなされたが、本発明はそれに限らず、本発明の精神と添付の請求の範囲の範囲内で種々の変更および修正をすることができることは当業者に明らかである。
Claims (23)
- 電気的に接続された複数の蓄電器を備えた蓄電部と、
前記複数の蓄電器のそれぞれの状態を計測する第1制御部と、
前記蓄電部の状態を計測する計測部と、
前記第1制御部において計測された前記複数の蓄電器のそれぞれの計測状態情報、及び前記計測部において計測された前記蓄電部の計測状態情報を取り込み、前記蓄電部の状態を管理及び制御する第2制御部と、を有し、
前記第2制御部は、
前記蓄電部が負荷に接続された負荷状態前後の無負荷状態における前記複数の蓄電器のそれぞれの計測状態情報を取り込み、前記負荷状態前後の無負荷状態における前記複数の蓄電器の平均の充電状態の変化量と、前記負荷状態後の無負荷状態における前記複数の蓄電器の平均の充電状態と所定の蓄電器の充電状態との差分を求めると共に、前記負荷状態前後の無負荷状態における前記複数の蓄電器の平均の充電状態の変化量あたりの前記差分である充電状態ばらつき係数を求める手段と、
前記負荷状態における前記蓄電部の計測状態情報を取り込み、前記負荷状態における前記複数の蓄電器の平均の充電状態の変化量を求めると共に、前記負荷状態における複数の蓄電器の平均の充電状態及び前記充電状態ばらつき係数に基づいて、所定の蓄電器の充電状態を予測する手段と、を有する、
ことを特徴とする蓄電装置。 - 請求項1は記載の蓄電装置において、
前記第2制御部は、前記複数の蓄電器のそれぞれの計測状態情報として、前記負荷状態前後の無負荷状態における前記複数の蓄電器のそれぞれの端子間電圧を取り込み、前記負荷状態前後の無負荷状態における前記複数の蓄電器のそれぞれの充電状態を求めると共に、この求めた前記複数の蓄電器のそれぞれの充電状態に基づいて、前記負荷状態前の無負荷状態及び前記負荷状態後の無負荷状態のそれぞれにおける前記複数の蓄電器の平均の充電状態を求める、
ことを特徴とする蓄電装置。 - 請求項2に記載の蓄電装置において、
前記第2制御部は、前記充電状態ばらつき係数を、前記複数の蓄電器の個体差或いは劣化ばらつきに対応した情報として保持し、この保持した情報を前記蓄電部の負荷状態時に読み出し、前記所定の蓄電器の充電状態を予測する、
ことを特徴とする蓄電装置。 - 請求項3に記載の蓄電装置において、
前記第2制御部は、前記予測する所定の蓄電器の充電状態として、前記複数の蓄電器の予測最高充電状態及び予測最低充電状態を求める、
ことを特徴とする蓄電装置。 - 請求項3に記載の蓄電装置において、
前記第2制御部は、少なくとも前記計測部によって計測された前記蓄電部の電流情報、車両側からの車速情報、車両側からのイグニッションキースイッチ情報、前記蓄電部と負荷側との間に設けられたリレーの開閉状態のいずれかの情報に基づいて、車両が走行中又は前記蓄電部が無負荷状態であるか否かを判断する、
ことを特徴とする蓄電装置。 - 請求項5に記載の蓄電装置において、
前記第2制御部は、前記無負荷状態において、前記充電状態ばらつき係数を求める前に、少なくとも前記電流情報,前記車速情報,前記イグニッションキースイッチ情報,前記リレー開閉状態のいずれかの情報に基づいて、前記車両が走行中または前記蓄電部が負荷状態であると判断した場合には、前記充電状態ばらつき係数を求めることを停止する、
ことを特徴とする蓄電装置。 - 請求項5に記載の蓄電装置において、
前記第2制御部は、前記無負荷状態において、前記充電状態ばらつき係数を求める前に、少なくとも前記電流情報,前記車速情報,前記イグニッションキースイッチ情報,前記リレー開閉状態のいずれかの情報に基づいて、前記車両が走行中または前記蓄電部が負荷状態であると判断した場合には、前記充電状態ばらつき係数が求まるまで前記蓄電部の充放電を禁止する、
ことを特徴とする蓄電装置。 - 請求項4に記載の蓄電装置において、
前記第2制御部は、前記予測最高充電状態が前記蓄電部の使用上限充電状態に到達した場合には前記蓄電部の充電を制限し、前記予測最低充電状態が前記蓄電部の使用下限充電状態に到達した場合には前記蓄電部の放電を制限する、
蓄電装置。 - 請求項4に記載の蓄電装置において、
前記第2制御部は、前記予測最高充電状態に基づいて前記蓄電部の許容充電電流又は許容充電電力を求め、前記予測最低充電状態に基づいて前記蓄電部の許容放電電流又は許容放電電力を求める、
蓄電装置。 - 請求項8に記載の蓄電装置において、
前記第2制御部は、前記予測最高充電状態に基づいて前記蓄電部の許容充電電流又は許容充電電力を求め、前記予測最低充電状態に基づいて前記蓄電部の許容放電電流又は許容放電電力を求める、
蓄電装置。 - 請求項4に記載の蓄電装置において、
前記第2制御部は、前記予測最高充電状態、前記予測最低充電状態、及び前記蓄電部の平均充電状態のそれぞれを基準とした許容充放電電流又は許容充放電電力を求め、それらのうちの最も小さい許容充放電電流又は許容充放電電力を、最終的な許容充放電電流又は許容充放電電力として選択する、
蓄電装置。 - 請求項8に記載の蓄電装置において、
前記第2制御部は、前記予測最高充電状態、前記予測最低充電状態、及び前記蓄電部の平均充電状態のそれぞれを基準とした許容充放電電流又は許容充放電電力を求め、それらのうちの最も小さい許容充放電電流又は許容充放電電力を、最終的な許容充放電電流又は許容充放電電力として選択する、
蓄電装置。 - 請求項2に記載の蓄電装置において、
前記第2制御部は、前記充電状態ばらつき係数が、前記充電状態ばらつき係数に対する閾値を超えた場合には、前記蓄電器の個体差異常であると判断する、
ことを特徴とする蓄電装置。 - 請求項2に記載の蓄電装置において、
前記第2制御部は、前記蓄電部に異常があると判断した場合、外部の通知手段からその異常が車両の運転者或いは作業者に通知されるように、前記通知手段による異常通知を制御するための指令信号を出力する、
蓄電装置。 - 請求項13に記載の蓄電装置において、
前記第2制御部は、前記蓄電部に異常があると判断した場合、外部の通知手段からその異常が車両の運転者或いは作業者に通知されるように、前記通知手段による異常通知を制御するための指令信号を出力する、
蓄電装置。 - 請求項14に記載の蓄電装置において、
前記通知手段は、車両の室内に設置され、前記蓄電部を示す画像シンボル及び前記蓄電部のSOHが表示される表示装置であり、
前記第2制御部は、前記蓄電部が異常であると判断した場合、前記表示装置に表示される前記SOHの表示が異常と表示されるように、前記指令信号を出力する、
蓄電装置。 - 請求項15に記載の蓄電装置において、
前記通知手段は、車両の室内に設置され、前記蓄電部を示す画像シンボル及び前記蓄電部のSOHが表示される表示装置であり、
前記第2制御部は、前記蓄電部が異常であると判断した場合、前記表示装置に表示される前記SOHの表示が異常と表示されるように、前記指令信号を出力する、
蓄電装置。 - 請求項1に記載の蓄電装置において、
前記蓄電器として、車両における前記蓄電部の充電状態使用範囲の上限充電状態と下限充電状態との間の領域における起電力の変化が、前記上限充電状態と前記下限充電状態との間から外れる領域における起電力の変化よりも緩やかな特性を有する蓄電器を用いた場合、前記第2制御部は、前記蓄電部の充電状態が、前記上限充電状態と前記下限充電状態との間から外れる領域に調整されるように、前記蓄電部を充放電させるための指令信号を出力する、
蓄電装置。 - 請求項14に記載の蓄電装置において、
前記第2制御部は、前記蓄電器が過充電,過放電,過温度,容量或いは入力性能若しくは出力性能の低下異常,前記個体差異常のいずれかの異常が生じた場合、前記指令信号を出力する、
蓄電装置。 - 請求項15に記載の蓄電装置において、
前記第2制御部は、前記蓄電器が過充電,過放電,過温度,容量或いは入力性能若しくは出力性能の低下異常,前記個体差異常のいずれかの異常が生じた場合、前記指令信号を出力する、
蓄電装置。 - 電気的に接続された複数の蓄電器を備えた蓄電部と、
前記複数の蓄電器のそれぞれの状態を計測する第1制御部と、
前記蓄電部の状態を計測する計測部と、
前記第1制御部において計測された前記複数の蓄電器のそれぞれの計測状態情報、及び前記計測部において計測された前記蓄電部の計測状態情報を取り込み、前記蓄電部の状態を管理及び制御する第2制御部と、を有し、
前記第2制御部は、
前記蓄電部が負荷に接続された負荷状態前後の無負荷状態における前記複数の蓄電器のそれぞれの計測状態情報を取り込み、前記負荷状態前後の無負荷状態における前記複数の蓄電器の平均の充電状態の変化量と、前記負荷状態後の無負荷状態における前記複数の蓄電器の平均の充電状態と前記蓄電器の最高及び最低のそれぞれの充電状態との差分を求めると共に、前記負荷状態前後の無負荷状態における前記複数の蓄電器の平均の充電状態の変化量あたりの前記差分である充電状態ばらつき係数をそれぞれを求める手段と、
前記負荷状態における前記蓄電部の計測状態情報を取り込み、前記負荷状態における前記複数の蓄電器の平均の充電状態の変化量を求めると共に、前記負荷状態における複数の蓄電器の平均の充電状態に前記充電状態ばらつき係数をそれぞれ乗算することにより、前記複数の蓄電器の最高及び最低のそれぞれの充電状態を予測する手段と、を有する、
ことを特徴とする蓄電装置。 - 電気的に接続された複数の蓄電器を備えた蓄電部と、
前記複数の蓄電器のそれぞれの状態を計測する第1制御部と、
前記蓄電部の状態を計測する計測部と、
前記第1制御部において計測された前記複数の蓄電器のそれぞれの計測状態情報、及び前記計測部において計測された前記蓄電部の計測状態情報を取り込み、前記蓄電部の状態を管理及び制御する第2制御部と、を有し、
前記第2制御部は、
前記蓄電部が負荷に接続された負荷状態前後の無負荷状態における前記複数の蓄電器のそれぞれの計測状態情報を取り込み、前記負荷状態前後の無負荷状態における前記複数の蓄電器のそれぞれの充電状態の変化量と、前記負荷状態前後の無負荷状態における前記複数の蓄電器の平均の充電状態の変化量とを求めると共に、前記複数の蓄電器の平均の充電状態の変化量あたりの前記複数の蓄電器のそれぞれの充電状態の変化量である充電状態ばらつき係数をそれぞれ求める手段と、
前記負荷状態における前記蓄電部の計測状態情報を取り込み、前記負荷状態における前記複数の蓄電器の平均の充電状態の変化量を求めると共に、前記負荷状態における複数の蓄電器の平均の充電状態に前記充電状態ばらつき係数のそれぞれを乗算して前記複数の蓄電器のそれぞれの充電状態を予測する手段と、を有する、
ことを特徴とする蓄電装置。 - 請求項22に記載の蓄電装置において、
前記第2制御部は、前記予測した複数の蓄電器のそれぞれの充電状態から、最高充電状態及び最低充電状態を選択する、
ことを特徴とする蓄電装置。
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| US20110313613A1 (en) | 2011-12-22 |
| EP2413420B1 (en) | 2018-11-21 |
| US8798832B2 (en) | 2014-08-05 |
| WO2010109956A1 (ja) | 2010-09-30 |
| JPWO2010109956A1 (ja) | 2012-09-27 |
| EP2413420A1 (en) | 2012-02-01 |
| EP2413420A4 (en) | 2017-08-16 |
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