JP2024512834A - 充電時間の決定方法及びbms、電池、電気エネルギーデバイス - Google Patents
充電時間の決定方法及びbms、電池、電気エネルギーデバイス Download PDFInfo
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Abstract
Description
本願は、2022年2月8日に出願された名称が「充電時間の決定方法及びBMS、電池、電気エネルギーデバイス」である中国特許出願第202210118020.3号の優先権を主張し、当該出願のすべての内容は参照により明細書に組み込まれている。
上記の計算式によって、今回の充電過程の電池の残り充電時間を概略的に算出することができる。上記の計算式によって、今回の充電過程の残り充電時間を概略的に算出することができるが、この計算方法は、ある特別なモードで充電過程の他の要因の影響を考慮しないため、計算された残り充電時間と実際の充電時間との誤差が大きくなる。そのうち、この計算式により計算された完全に充電する場合の残り充電時間の誤差が大きくなる主な要因は、電池が低温(冬に低温のままで充電を開始)又は高温(夏に高温のままで充電を開始)で充電を開始する時、残り充電時間の計算式で充電開始段階に熱管理を起動する時の熱管理負荷の消費電流を考慮せず、実際に電池PACKに充電する電流が小さくなるため、残り充電時間の計算誤差に影響を与えることである。
(充電ターゲットSOC(SOC_Target)-推定された熱管理が充電ターゲット温度に達した後のSOC(SOC_NormalCharge))*セル容量(Cap_Cell)/充電ポールの最大能力の電流値(ACMaxCurr)*実際の出力電流係数(OBCOut_ratio)
現在のSOC値(SOC_Now)-(充電ポールの最大能力の電流値(ACMaxCurr)*実際の出力電流係数(OBCOut_ratio)-熱管理により消費される電流(Curr_Consume))*推定された熱管理起動段階の残り充電時間(Remaintime_TherManOpen)
推定された熱管理起動段階の残り充電時間(Remaintime_TherManOpen)+推定された熱管理が充電ターゲット温度に達した後に通常且つ安定的な充電過程に入る残り充電時間(Remaintime_NormalCharge)
推定された熱管理起動段階の残り充電時間(Remaintime_TherManOpen)の計算ロジックは、ステップ1とステップ2によって計算される。
Claims (13)
- 充電時間の決定方法であって、
電池の充電温度を決定することと、
前記充電温度が第1設定範囲を超えた場合、前記電池の充電温度を前記第1設定範囲に調整するための第1時間を推定することと、
前記電池の充電温度を前記第1設定範囲に調整した後、前記電池をターゲットSOCに充電するための第2時間を推定することと、
前記電池の充電開始時間、前記第1時間及び前記第2時間に基づいて、前記電池を前記ターゲットSOCに充電するための時間を決定することと、を含む、
ことを特徴とする方法。 - 前記電池の充電温度を前記第1設定範囲に調整するための第1時間を推定することは、
充電温度、調整すべきターゲット温度及び昇温速度に基づいて、前記第1時間を計算することを含み、
前記調整すべきターゲット温度は前記第1設定範囲内の値であり、前記充電温度は前記第1設定範囲内の最小値より小さい、
ことを特徴とする請求項1に記載の方法。 - 前記電池の充電温度を前記第1設定範囲に調整するための第1時間を推定することは、
充電温度、調整すべきターゲット温度及び降温速度に基づいて、前記第1時間を計算することを含み、
前記調整すべきターゲット温度は前記第1設定範囲内の値であり、前記充電温度は前記第1設定範囲内の最小値より大きい、
ことを特徴とする請求項1に記載の方法。 - 前記電池をターゲットSOCに充電するための第2時間を推定することは、
充電温度が前記第1設定範囲に達する前記電池の第1SOCを決定することと、
前記第1SOC、前記ターゲットSOC及び前記電池のセル容量に基づいて、前記電池の充電すべき電量を決定することと、
前記充電すべき電量及び充電デバイスの充電電流に基づいて、前記第2時間を計算することと、を含む、
ことを特徴とする請求項1に記載の方法。 - 充電温度が前記第1設定範囲に達する前記電池の第1SOCを決定することは、
前記電池を充電するとともに充電温度を調整する場合、前記電池の充電温度の調整により消費される電流及び充電デバイスの充電電流に基づいて、前記電池の有効充電電流を決定することと、
前記電池の現在SOC、前記電池のセル容量、前記有効充電電流及び前記第1時間に基づいて、前記第1SOCを計算することと、を含む、
ことを特徴とする請求項4に記載の方法。 - 充電温度が前記第1設定範囲に達する前記電池の第1SOCを決定することは、
前記電池の充電温度を調整するのみの場合、前記電池の現在SOCを前記第1SOCとして決定することを含む、
ことを特徴とする請求項4に記載の方法。 - 前記方法は、
前記充電デバイスの最大充電電流及び前記充電デバイスの実際の出力電流係数を取得することと、
前記最大充電電流及び前記実際の出力電流係数の積を前記充電デバイスの充電電流として決定することと、を更に含む、
ことを特徴とする請求項4~6の何れか一項に記載の方法。 - 前記充電デバイスの実際の出力電流係数を取得することは、
前記電池の充電データ履歴に基づいて、前記充電デバイスの実際の出力電流係数を較正することを含む、
ことを特徴とする請求項7に記載の方法。 - 前記充電デバイスの実際の出力電流係数を取得することは、
前記充電デバイスの最大充電電流及び前記電池の実際の充電電流に基づいて、前記充電デバイスの実際の出力電流係数を計算することを含む、
ことを特徴とする請求項7に記載の方法。 - 前記方法は、
周期到達又は請求メッセージの送信に応答して、前記電池を前記ターゲットSOCに充電するための時間に関連する情報をターゲット対象に出力することを更に含む、
ことを特徴とする請求項1~9の何れか一項に記載の方法。 - プロセッサ及び記憶媒体を含む電池管理システムであって、
前記記憶媒体にコンピュータプログラムが記憶され、前記コンピュータプログラムが前記プロセッサにより実行される時、請求項1~9の何れか一項に記載の方法に基づいて、充電時間を計算する、
ことを特徴とする電池管理システム。 - 電池セルと、請求項11に記載する電池管理システムと、を含む、
ことを特徴とする電池。 - デバイス本体と、請求項12に記載の電池を使用した電源と、を含む、
ことを特徴とする電気エネルギーデバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210118020.3 | 2022-02-08 | ||
CN202210118020.3A CN115832475A (zh) | 2022-02-08 | 2022-02-08 | 充电时间确定方法及bms、电池、电能设备 |
PCT/CN2022/089767 WO2023151190A1 (zh) | 2022-02-08 | 2022-04-28 | 充电时间确定方法及bms、电池、电能设备 |
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JP2024512834A true JP2024512834A (ja) | 2024-03-21 |
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