JP2022513149A - 搭載電源網内のエネルギ蓄積器を監視する方法 - Google Patents
搭載電源網内のエネルギ蓄積器を監視する方法 Download PDFInfo
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Abstract
Description
搭載電源網とは、自動車の用途においては、自動車内の全ての電気部品の総体であると理解される。即ち、これには、電気消費装置及び給電源、例えばバッテリの双方が含まれる。この場合、搭載エネルギ網と搭載通信網とが区別されるが、本明細書においては、特に、自動車の各部品へのエネルギの供給を担当する搭載エネルギ網について述べる。搭載電源網を制御するために、通常、制御機能に加えて監視機能をも実行するマイクロコントローラが設けられている。
こうした背景から、請求項1に記載の、自動車の搭載電源網内のエネルギ蓄積器、例えばバッテリを監視する方法と、請求項15の特徴を有する、当該方法を実行する装置とが提案される。各実施形態は、従属請求項及び明細書から得られる。
・機能利用可能性の向上、例えば、スタート-ストップ機能及び/又は自動運転機能の向上、
・付加的な故障を発生させることのないメンテナンス支援及びここから得られるメンテナンス間隔の最大化、これによる車両群運営者にとっての車両利用可能性の最大化、
・移動不能状態の回避によるコスト低減、例えば救助費用などの低減、
・不測の事態における移動不能状態の回避による安全性の向上、
を有する。
本発明を、実施形態に即して図面に概略的に示し、以下に図面を参照しながら詳細に説明する。
Claims (15)
- 自動車の搭載電源網内のエネルギ蓄積器を監視する方法であって、
前記エネルギ蓄積器の実際の少なくとも1つの動作量を算定して、前記少なくとも1つの動作量を予測モデル(202)へ転送し、
前記予測モデル(202)は、前記少なくとも1つの動作量の実際値から、前記少なくとも1つの動作量の未来値を算定して、前記少なくとも1つの動作量の前記未来値を電圧予測器(204)へ供給し、前記電圧予測器(204)は、選択された機能のための、前記エネルギ蓄積器の期待される最小電圧を計算する、方法。 - 前記予測モデル(202)は、充電状態‐充電能力モデル、物理モデル、機械学習に基づくモデル、回帰又はスプライン補外を基礎とし得る、
請求項1に記載の方法。 - エネルギ蓄積器としてバッテリ(100)が監視され、動作量として前記バッテリ(100)のキャパシタンスが算定される、
請求項1又は2に記載の方法。 - エネルギ蓄積器としてバッテリ(100)が監視され、動作量として前記バッテリ(100)の内部抵抗(102)が算定される、
請求項1乃至3のいずれか一項に記載の方法。 - エネルギ蓄積器としてバッテリ(100)が監視され、動作量として前記バッテリ(100)の極性が算定される、
請求項1乃至4のいずれか一項に記載の方法。 - 前記予測モデル(202)は、前記少なくとも1つの動作量の前記実際値を、未来の推定充電状態により計算する、
請求項1乃至5のいずれか一項に記載の方法。 - 前記電圧予測器(204)は、前記最小電圧を、前記エネルギ蓄積器の等価回路図によって計算する、
請求項1乃至6のいずれか一項に記載の方法。 - 前記最小電圧を計算する際に、電流、電圧及び温度に対する負荷特性が使用される、
請求項1乃至7のいずれか一項に記載の方法。 - 計算された前記最小電圧が、限界値と比較される、
請求項1乃至8のいずれか一項に記載の方法。 - 限界値の下方超過により、使用される前記負荷特性に対応する機能が未来にさらに実行可能であるかどうかが算出される、
請求項1乃至9のいずれか一項に記載の方法。 - 前記エネルギ蓄積器の残寿命が算出される、
請求項1乃至10のいずれか一項に記載の方法。 - 前記残寿命に基づいて、メンテナンス間隔及び/又は前記エネルギ蓄積器の交換が調整される、
請求項11に記載の方法。 - 前記残寿命に基づいて、当該残寿命を延長するためのエネルギ管理における措置が講じられる、
請求項11又は12に記載の方法。 - 前記措置は、
・機能の中止及び/又はグレード低減、
・前記エネルギ蓄積器の目標動作領域の変更、又は、
・複数のエネルギ蓄積器が設けられている場合の当該複数のエネルギ蓄積器間における充電状態の移動、
から選択可能である、
請求項13に記載の方法。 - 自動車の搭載電源網内のエネルギ蓄積器を監視する装置であって、請求項1乃至14のいずれか一項に記載の方法を実施するように構成されている装置。
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Application Number | Priority Date | Filing Date | Title |
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DE102018220494.2 | 2018-11-28 | ||
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PCT/EP2019/081943 WO2020109108A1 (de) | 2018-11-28 | 2019-11-20 | Verfahren zum überwachen eines energiespeichers in einem bordnetz |
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DE102020124182A1 (de) * | 2020-09-16 | 2022-03-17 | TWAICE Technologies GmbH | Bestimmung eines Alterungszustands eines Energiespeichers |
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DE102020214917A1 (de) | 2020-11-27 | 2022-06-02 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Bestimmung des Gesundheitszustands eines elektrischen Energiespeichers, Computerprogrammprodukt und maschinenlesbares Speichermedium |
DE102021101816A1 (de) | 2021-01-27 | 2022-07-28 | Vega Grieshaber Kg | Verfahren und Vorrichtung zur Bestimmung einer Restkapazität einer Batterie für batteriebetriebene elektronische Geräte |
DE102021202904A1 (de) | 2021-03-24 | 2022-09-29 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Überwachen eines Energiespeichers in einem Kraftfahrzeug |
US20220373600A1 (en) * | 2021-05-24 | 2022-11-24 | Btech Inc. | Neural network for estimating battery health |
DE102021205872A1 (de) | 2021-06-10 | 2022-12-15 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Überwachen eines Energiespeichers in einem Kraftfahrzeug |
US11422199B1 (en) * | 2021-06-17 | 2022-08-23 | Hong Kong Applied Science and Technology Research Institute Company Limited | State of health evaluation of retired lithium-ion batteries and battery modules |
DE102021211870A1 (de) | 2021-10-21 | 2023-04-27 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Überwachen eines Energiespeichers in einem Kraftfahrzeug |
DE102021211873A1 (de) | 2021-10-21 | 2023-04-27 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Überwachen eines Energiespeichers in einem Kraftfahrzeug |
SE2151358A1 (en) * | 2021-11-05 | 2023-05-06 | Centre Nat Rech Scient | Joint optimization of routes and driving parameters for cycle degradation minimization in electric vehicles |
DE102022208195A1 (de) | 2022-08-05 | 2024-02-08 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Überwachen eines Energiespeichers in einem Kraftfahrzeug |
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