JP6916983B2 - 車両用のバッテリ監視システム - Google Patents
車両用のバッテリ監視システム Download PDFInfo
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- JP6916983B2 JP6916983B2 JP2016214061A JP2016214061A JP6916983B2 JP 6916983 B2 JP6916983 B2 JP 6916983B2 JP 2016214061 A JP2016214061 A JP 2016214061A JP 2016214061 A JP2016214061 A JP 2016214061A JP 6916983 B2 JP6916983 B2 JP 6916983B2
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- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B60L58/14—Preventing excessive discharging
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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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- B60L58/15—Preventing overcharging
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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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- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
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- H01M10/00—Secondary cells; Manufacture thereof
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- H—ELECTRICITY
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- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
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- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0018—Circuits for equalisation of charge between batteries using separate charge circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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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]
- G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
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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]
- G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
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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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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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
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- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
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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
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Description
車両内に設けられたバッテリの所定位置の電圧又は前記バッテリの温度の少なくともいずれかを検出する検出部と、前記検出部による検出結果に基づき、前記バッテリの電圧又は温度の少なくともいずれかを示す検出情報を無線送信する無線通信部と、を有するバッテリ監視装置と、
前記バッテリ監視装置の前記無線通信部から送信された前記検出情報を受信する受信部と、前記受信部が受信した前記検出情報を外部装置に無線送信する送信部とを有する中継器と、
を含み、
前記バッテリ監視装置及び前記中継器は、前記バッテリ及び前記外部装置を内部に収容する金属筐体内に配置され、
前記バッテリ監視装置と前記外部装置との間には、前記金属筐体の一部が障害部として配置され、前記バッテリ監視装置と前記中継器との間に前記障害部が介在しない空間が存在し、前記外部装置と前記中継器との間に前記障害部が介在しない空間が存在する位置関係で前記中継器が配置されている。
また、バッテリ監視装置から外部装置に対して直接的に無線送信する場合に無線通信媒体の低減が生じやすい環境下において、無線通信をより良好に行うことができる。
更に、外部からの衝撃や外部からの電波等の干渉を金属筐体によって防ぐことができ、金属筐体内では、配線数を確実に低減しつつ、バッテリ監視装置と外部装置との間での通信を良好に行いやすくなる。
特に、複数のバッテリ監視装置が分散して配置される場合において、それぞれのバッテリ監視装置と外部装置との間で通信を行い得るように配線を設ける場合、配線がより多く必要になるため、サイズや重量の増大が避けられない。これに対し、上記構成によれば、複数のバッテリ監視装置と共通の外部装置との間で通信を行うにあたり、配線数を格段に減らすことができるため、サイズや重量の低減効果がより大きくなる。
以下、本発明をより具体化した実施例1について説明する。
まず、本発明の適用例である車両用の電源システム100の概要を説明する。
図1には、車両用の電源システム100を簡略的に示している。図1で示す車両用の電源システム100は、バッテリ10と、バッテリ10を監視する車両用のバッテリ監視システム1(以下、バッテリ監視システム1ともいう)と、バッテリ監視システム1と通信可能に設けられたパワーマネージメントECU120(Electric Control Unit)とを備える。
図1の例では、バッテリ10を構成する一つの組電池11に対して一つのバッテリ監視装置30が割り当てられている。各々のバッテリ監視装置30は、割り当てられた組電池11の電圧や温度を検出する検出部50と、外部からの指令に応じた制御などの各種制御を行う制御部40と、外部装置としてのバッテリECU20と中継器90を介して又は介さずに直接的に無線通信を行う無線通信部60とを備える。
図1で示すバッテリECU20は、外部装置の一例に相当し、バッテリ監視装置30の無線通信部60又は中継器90から無線送信された情報を受信し得る構成をなすとともに、様々な制御を行い得る電子制御装置として構成されている。また、バッテリECU20は、図1で示す外部のECU(図1では、パワーマネージメントECU120)と通信可能とされている。
中継器90は、無線信号を受信する受信部92と、無線信号を送信する送信部94とを備え、外部からの無線信号を受信部92で受信して送信部94で送信し直す機能を有する。
バッテリ監視システム1では、バッテリECU20が図4のような流れで制御を行う。図4の制御は、例えばバッテリECU20のマイクロコンピュータ21によって実行され、マイクロコンピュータ21は、イグニッションスイッチがオン状態となっている間、図4の制御を短い時間間隔で継続的に繰り返す。
上述したバッテリ監視装置30及びバッテリ監視システム1は、検出部50の検出結果に基づく検出情報(バッテリの電圧又は温度の少なくともいずれかを示す情報)を無線通信によって伝送することができるため、配線数を効果的に減らすことができる。更に、検出情報をバッテリECU20(外部装置)に伝送する場合、少なくとも中継器90で中継した上で伝送することができるため、中継器90から無線送信を行い得る位置にバッテリECU20が配置されていれば、情報をより良好に伝送することができる。
本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。また、上述した実施例や後述する実施例は矛盾しない範囲で組み合わせることが可能である。
10…バッテリ
12…電池セル
20…バッテリECU(外部装置)
30…車両用のバッテリ監視装置
40…制御部
50…検出部
60…無線通信部
80…金属筐体
82…障害部
90…中継器
92…受信部
94…送信部
Claims (5)
- 車両内に設けられたバッテリの所定位置の電圧又は前記バッテリの温度の少なくともいずれかを検出する検出部と、前記検出部による検出結果に基づき、前記バッテリの電圧又は温度の少なくともいずれかを示す検出情報を無線送信する無線通信部と、を有する複数のバッテリ監視装置と、
前記バッテリ監視装置の前記無線通信部から送信された前記検出情報を受信する受信部と、前記受信部が受信した前記検出情報を、前記バッテリ監視装置の外部に設けられ前記バッテリの状態を判定する外部装置に無線送信する送信部とを有する中継器と、
を含み、
前記中継器は複数の前記バッテリ監視装置から無線送信される各情報を受信して前記外部装置にそれぞれ無線送信し、
前記バッテリ監視装置及び前記中継器は、前記バッテリ及び前記外部装置を内部に収容する金属筐体内に配置され、
所定位置の前記バッテリ監視装置と前記外部装置との間には、前記金属筐体の一部が金属材料を含む障害部として配置され、前記所定位置の前記バッテリ監視装置と前記中継器との間で前記障害部が介在しない直線経路を結ぶことができ、前記外部装置と前記中継器との間で前記障害部が介在しない直線経路を結ぶことができる関係となっている車両用のバッテリ監視システム。 - 前記中継器の前記受信部は、前記外部装置から所定の指令情報が無線送信された場合に当該指令情報を受信し、
前記中継器の前記送信部は、前記受信部が前記指令情報を受信した場合に前記指令情報を無線送信し、
前記バッテリ監視装置は、外部から与えられた指令に対応する制御を行う制御部を有し、
前記無線通信部は、前記送信部から前記指令情報が無線送信された場合に前記指令情報を受信し、
前記制御部は、前記無線通信部が前記指令情報を受信する場合に、前記指令情報に対応する制御を行う請求項1に記載の車両用のバッテリ監視システム。 - 前記中継器の前記受信部は、前記外部装置から所定の通知指令情報が無線送信された場合に当該通知指令情報を受信し、
前記中継器の前記送信部は、前記受信部が前記通知指令情報を受信する場合に前記通知指令情報を無線送信し、
前記制御部は、前記無線通信部が前記通知指令情報を受信する場合に、前記バッテリの電圧及び温度の少なくともいずれかを示す前記検出情報を前記中継器に向けて無線送信する動作を前記無線通信部に行わせる請求項2に記載の車両用のバッテリ監視システム。 - 前記中継器の前記受信部は、前記外部装置から所定のセルバランス指令情報が無線送信された場合に当該セルバランス指令情報を受信し、
前記中継器の前記送信部は、前記受信部が前記セルバランス指令情報を受信した場合に前記セルバランス指令情報を無線送信し、
前記検出部は、複数の電池セルが接続されてなる前記バッテリにおける各々の前記電池セルの端子間電圧を特定する電圧情報を検出し、
前記制御部は、前記無線通信部が前記セルバランス指令情報を受信した場合に、前記検出部による検出結果に基づいて各々の前記電池セルの端子間電圧を均一化させるように複数の前記電池セルの充電又は放電を制御する請求項2又は請求項3に記載の車両用のバッテリ監視システム。 - 前記外部装置を含む請求項1から請求項4のいずれか一項に記載の車両用のバッテリ監視システム。
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DE112017005535.0T DE112017005535T5 (de) | 2016-11-01 | 2017-10-11 | Fahrzeugbatterie-überwachungsvorrichtung undfahrzeugbatterie-überwachungssystem |
US16/345,960 US20200064408A1 (en) | 2016-11-01 | 2017-10-11 | Vehicular battery monitoring system |
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JP2020053176A (ja) * | 2018-09-25 | 2020-04-02 | 株式会社デンソー | 電池監視システム |
CN109347166A (zh) * | 2018-10-31 | 2019-02-15 | 无锡艾立德智能科技有限公司 | 一种新型锂电池模组供电系统 |
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