JP4884945B2 - 充電状態予測プログラム、架線レス交通システム及びその充電方法 - Google Patents
充電状態予測プログラム、架線レス交通システム及びその充電方法 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L2260/56—Temperature prediction, e.g. for pre-cooling
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Description
このため特許文献2の図5に示された実施形態では、蓄電池の温度調整手段を設け、この温度調整手段により蓄電池の充電状態SOC(State of Charge)に対し該蓄電池を望ましい温度に保持し、これによって温度の影響を受けやすい充電状態の管理精度を向上し、過充電を防止して蓄電装置の劣化を抑制するようにしている。
また電流積算法で充電状態SOCを算出する方法もある。電池の充放電量は電流値の時間積分(単位;アンペアアワー)で現わされるため、測定する電池電流を時間積分することで電池の充電状態が算出できる。電流積算法は、かかる方法で車両の蓄電池の充電状態SOCを算出するものであるが、時間とともに積算していくため、電流の計測精度が悪いほど時間の経過とともに算出する充電状態の誤差が累積していくという問題点がある。
架線レス交通システムの車両に搭載された蓄電池の充電状態をコンピュータによって予測するための予測プログラムであって、
該予測プログラムは、コンピュータに該蓄電池の電流と電圧の計測値から、瞬時の電流変化に支配される第1の抵抗成分と、キャパシタンスと第2の抵抗成分とを有し遅い過度応答に支配される回路成分と、開回路電圧とからなる該蓄電池の等価回路素子値をオンラインで導出させ、
該蓄電池の電流と電圧の計測値から前記第1の抵抗成分を算出させ、
算出された前記第1の抵抗成分およびk=(前記第2の抵抗成分)/(前記第1の抵抗成分)の予め実測された実測値から前記第2の抵抗成分を算出させ、
算出された前記第2の抵抗成分およびτ=(前記キャパシタンス)×(前記第2の抵抗成分)の予め実測された実測値から前記キャパシタンスを算出させ、
算出された前記第2の抵抗成分および前記キャパシタンスに基づいて該回路成分の電位から該開回路電圧を算出させ、
該開回路電圧から充電状態を算出させるものである。
また本発明者等は、k=(該第2の抵抗成分)/(該第1の抵抗成分)と、τ=(該キャパシタンス)×(該第2の抵抗成分)の実測値は、蓄電池ごとに温度の影響を受けずほぼ一定値を示すという知見を得た。この知見に基づいて、第1の抵抗成分R1、k及びτの実測値からCR2回路の電位Vcを算出することができる。
またオンラインで蓄電池の内部抵抗をモニタリングできるので、蓄電池の劣化状態SOH(State of Health)の評価にも有効である。
車両に蓄電池を搭載し該蓄電池の電力で定められた軌道を走行する架線レス交通システムにおいて、
地上に設けられた充電電源と該軌道に沿った地上に設けられ該充電電源に接続された送電装置とからなる地上充電設備と、
該車両に搭載され充電位置で該車両が停止したときに該送電装置と対面する車載受電装置と、
該蓄電池の電流及び電圧を検知する手段と、
請求項1に記載の充電状態予測プログラムによって作動するコンピュータからなる充電状態演算手段と、
該充電状態演算手段で演算された充電状態に基づいて該送電装置による該蓄電池への充電を制御する手段とを備えたものである。
前記構成の架線レス交通システムの車両の蓄電池に該地上充電設備から充電する方法において、
該蓄電池の電圧の上限値に対応する充電電流の上限値を設定し、該充電電流の上限値を越えないように充電を行い、
該充電状態演算手段によって演算された充電状態が予め設定された充電状態設定値に達した場合に充電を終了するものである。
またオンラインで蓄電池の内部抵抗をモニタリングできるので、蓄電池の劣化状態SOH(State of Health)の評価にも有効である。
(実施形態1)
またオンラインで二次電池14の内部抵抗をモニタリングできるので、該二次電池の劣化状態SOH(State of Health)の評価にも有効である。
2 地上充電設備
11 車載制御装置
12 充電状態SOC演算手段
13 充電制御手段
14 二次電池(蓄電池)
15 電流電圧検出手段
17 車載受電装置
18 地上送電装置
21 地上制御装置
22 充電電源
23 充電電流(電力)設定手段
25 地上送電装置
E 開回路電圧
R1 第1の抵抗成分
R2 第2の抵抗成分
C キャパシタンス
Vc CR2回路電位
Claims (3)
- 架線レス交通システムの車両に搭載された蓄電池の充電状態をコンピュータによって予測するための予測プログラムであって、
該予測プログラムは、コンピュータに該蓄電池の電流と電圧の計測値から、瞬時の電流変化に支配される第1の抵抗成分と、キャパシタンスと第2の抵抗成分とを有し遅い過度応答に支配される回路成分と、開回路電圧とからなる該蓄電池の等価回路素子値をオンラインで設定させ、
該蓄電池の電流と電圧の計測値から前記第1の抵抗成分を算出させ、
算出された前記第1の抵抗成分およびk=(前記第2の抵抗成分)/(前記第1の抵抗成分)の予め実測された実測値から前記第2の抵抗成分を算出させ、
算出された前記第2の抵抗成分およびτ=(前記キャパシタンス)×(前記第2の抵抗成分)の予め実測された実測値から前記キャパシタンスを算出させ、
算出された前記第2の抵抗成分および前記キャパシタンスに基づいて該回路成分の電位から該開回路電圧を算出させ、
該開回路電圧から充電状態を算出させることを特徴とする充電状態予測プログラム。 - 車両に蓄電装置を搭載し該蓄電池の電力で定められた軌道を走行する架線レス交通システムにおいて、
地上に設けられた充電電源と該軌道に沿った地上に設けられ該充電電源に接続された送電装置とからなる地上充電設備と、
該車両に搭載され充電位置で該車両が停止したときに該送電装置と対面する車載受電装置と、
該蓄電池の電流及び電圧を検知する手段と、
請求項1に記載の充電状態予測プログラムによって作動するコンピュータからなる充電状態演算手段と、
該充電状態演算手段で演算された充電状態に基づいて該送電装置による該蓄電池への充電を制御する手段とを備えたことを特徴とする架線レス交通システム。 - 請求項2に記載の架線レス交通システムの該車両の蓄電池に該地上充電設備から充電する方法において、
該蓄電池の電圧の上限値に対応する充電電流の上限値を設定し、該充電電流の上限値を越えないように充電を行い、
該充電状態演算手段によって演算された充電状態が予め設定された充電状態設定値に達したときに充電を終了することを特徴とする架線レス交通システムの充電方法。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006324643A JP4884945B2 (ja) | 2006-11-30 | 2006-11-30 | 充電状態予測プログラム、架線レス交通システム及びその充電方法 |
KR1020087029293A KR101073148B1 (ko) | 2006-11-30 | 2007-11-29 | 충전 상태 예측 프로그램을 기록한 컴퓨터 판독 가능한 기록 매체, 무선 교통 시스템 및 그 충전 방법 |
US12/302,851 US7888912B2 (en) | 2006-11-30 | 2007-11-29 | Battery SOC estimation program, wireless transit system, and method of charging the battery |
PCT/JP2007/073536 WO2008066203A1 (fr) | 2006-11-30 | 2007-11-29 | Programme d'estimation d'état de charge, système de transport sans fil et procédé de charge |
EP07850153.3A EP2012135B1 (en) | 2006-11-30 | 2007-11-29 | State-of-charge prediction program, wireless transportation system, and charging method |
CN200780019887.7A CN101454682B (zh) | 2006-11-30 | 2007-11-29 | 充电状态预测装置、无架线交通系统及其充电方法 |
CA2651334A CA2651334C (en) | 2006-11-30 | 2007-11-29 | Battery soc estimation device and method, wireless transit system, and method of charging the battery |
HK09106934.7A HK1128963A1 (en) | 2006-11-30 | 2009-07-28 | Stat-of-charge prediction device, wireless transportation system, and charging method |
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EP (1) | EP2012135B1 (ja) |
JP (1) | JP4884945B2 (ja) |
KR (1) | KR101073148B1 (ja) |
CN (1) | CN101454682B (ja) |
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US20090195219A1 (en) | 2009-08-06 |
KR20090016678A (ko) | 2009-02-17 |
CN101454682B (zh) | 2015-10-21 |
EP2012135A4 (en) | 2017-01-25 |
JP2008141846A (ja) | 2008-06-19 |
EP2012135A1 (en) | 2009-01-07 |
CN101454682A (zh) | 2009-06-10 |
WO2008066203A1 (fr) | 2008-06-05 |
US7888912B2 (en) | 2011-02-15 |
CA2651334C (en) | 2013-04-09 |
HK1128963A1 (en) | 2009-11-13 |
CA2651334A1 (en) | 2008-06-05 |
EP2012135B1 (en) | 2021-01-06 |
KR101073148B1 (ko) | 2011-10-12 |
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