JP6930688B2 - バッテリーの充電状態をキャリブレーションするための方法及びバッテリー管理システム - Google Patents
バッテリーの充電状態をキャリブレーションするための方法及びバッテリー管理システム Download PDFInfo
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
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- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- G—PHYSICS
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- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3828—Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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- B60L2240/54—Drive Train control parameters related to batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/44—Control modes by parameter estimation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Power Engineering (AREA)
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- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
20:バッテリー
30:コンタクタ
100:バッテリー管理システム
110:メモリ
120:センシング部
130:制御部
140:通信部
200:等価回路モデル
R0:オーム抵抗
210:並列RC回路
Claims (10)
- バッテリーの充電状態をキャリブレーションするための方法であって、
前記バッテリーの端子電圧及び電流を測定する段階と、
前記測定された端子電圧を示す測定電圧値及び前記測定された電流を示す測定電流値をメモリに保存する段階と、
電流積算法を用いて、前記測定電流値に基づいて前記バッテリーの充電状態を更新する段階と、
第1個数以上の測定電圧値及び前記第1個数以上の測定電流値が前記メモリに順次保存された場合、前記メモリに最近保存された前記第1個数の測定電圧値及び前記第1個数の測定電流値に基づいて、前記バッテリーの開放電圧を推定する段階と、
前記推定された開放電圧を示す推定電圧値を前記メモリに保存する段階と、
第2個数以上の推定電圧値が前記メモリに順次保存された場合、前記メモリに最近保存された前記第2個数の推定電圧値から、前記第2個数の推定電圧値が順に整列されたデータセットを生成する段階と、
前記データセットによってキャリブレーション条件が満たされた場合、前記更新された充電状態を基準充電状態にキャリブレーションする段階とを含み、
前記キャリブレーション条件は、(i)前記基準充電状態に対応する基準電圧値と前記推定電圧値との差が第1電圧差値未満であり、(ii)前記データセット内で互いに隣接して整列された二つの推定電圧値の差が第2電圧差値未満である場合に満たされる
方法。 - 前記バッテリーの開放電圧を推定する段階は、前記バッテリーの等価回路モデルに関連する最小自乗法を用い、前記等価回路モデルは、互いに直列で連結された電圧源、オーム抵抗、及び少なくとも一つの並列RC回路を含む、請求項1に記載の方法。
- 前記バッテリーの開放電圧を推定する段階は、前記第1個数の電流値によって推定条件が満たされる場合に行われる、請求項1または2に記載の方法。
- 前記バッテリーの開放電圧を推定する段階は、前記第1個数の電流値によって前記推定条件が満たされない場合、前記開放電圧が以前に推定された開放電圧と同じであると推定する、請求項3に記載の方法。
- 前記推定条件は、前記第1個数の電流値のうち、最大電流値と最小電流値との差が基準電流値以上である場合に満たされる、請求項3または4に記載の方法。
- 前記第1電圧差値は、前記第2電圧差値よりも小さい、請求項1から5のいずれか一項に記載の方法。
- 前記更新された充電状態に基づいて前記基準充電状態を更新する段階をさらに含む、請求項1から6のいずれか一項に記載の方法。
- バッテリーの充電状態をキャリブレーションするためのバッテリー管理システムであって、
メモリと、
前記バッテリーの端子電圧及び電流を測定するように構成されたセンシング部と、
前記メモリ及び前記センシング部に動作可能に結合された制御部とを含み、
前記制御部は、
前記測定された端子電圧を示す測定電圧値及び前記測定された電流を示す測定電流値を前記メモリに保存し、
電流積算法を用いて、前記測定電流値に基づいて前記バッテリーの充電状態を更新し、
第1個数以上の測定電圧値及び前記第1個数以上の測定電流値が前記メモリに順次保存された場合、前記メモリに最近保存された前記第1個数の測定電圧値及び前記第1個数の測定電流値に基づいて、前記バッテリーの開放電圧を推定し、
前記推定された開放電圧を示す推定電圧値を前記メモリに保存し、
第2個数以上の推定電圧値が前記メモリに順次保存された場合、前記メモリに最近保存された前記第2個数の推定電圧値から、前記第2個数の推定電圧値が順に整列されたデータセットを生成し、
前記データセットによってキャリブレーション条件が満たされた場合、前記更新された充電状態を基準充電状態にキャリブレーションし、
前記バッテリーの充電状態が前記基準充電状態にキャリブレーションされたことを示す通知信号を外部装置に伝送するように構成され、
前記キャリブレーション条件は、(i)前記基準充電状態に対応する基準電圧値と前記推定電圧値との差が第1電圧差値未満であり、(ii)前記データセット内で互いに隣接して整列された二つの推定電圧値の差が第2電圧差値未満である場合に満たされる
バッテリー管理システム。 - 前記制御部は、前記更新された充電状態に基づいて前記基準充電状態を更新するように構成される、請求項8に記載のバッテリー管理システム。
- 請求項8または9に記載の前記バッテリー管理システムを含む、バッテリーパック。
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KR1020170177360A KR102244140B1 (ko) | 2017-12-21 | 2017-12-21 | 배터리의 충전 상태를 캘리브레이션하기 위한 방법 및 배터리 관리 시스템 |
KR10-2017-0177360 | 2017-12-21 | ||
PCT/KR2018/015880 WO2019124877A1 (ko) | 2017-12-21 | 2018-12-13 | 배터리의 충전 상태를 캘리브레이션하기 위한 방법 및 배터리 관리 시스템 |
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US (1) | US11480620B2 (ja) |
EP (1) | EP3627173B1 (ja) |
JP (1) | JP6930688B2 (ja) |
KR (1) | KR102244140B1 (ja) |
CN (1) | CN110622018B (ja) |
PL (1) | PL3627173T3 (ja) |
WO (1) | WO2019124877A1 (ja) |
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KR102458526B1 (ko) * | 2018-02-07 | 2022-10-25 | 주식회사 엘지에너지솔루션 | 배터리의 동작 상태에 따라 soc를 추정하는 장치 및 방법 |
TWI728830B (zh) * | 2020-06-09 | 2021-05-21 | 聚眾聯合科技股份有限公司 | 電量判斷模組及其電量校正之方法 |
KR102481221B1 (ko) * | 2020-09-17 | 2022-12-26 | 한화솔루션 주식회사 | 에너지 저장 시스템의 충전 상태 추정장치 및 방법 |
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US11480620B2 (en) | 2022-10-25 |
EP3627173A1 (en) | 2020-03-25 |
US20200341071A1 (en) | 2020-10-29 |
CN110622018A (zh) | 2019-12-27 |
KR102244140B1 (ko) | 2021-04-22 |
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