JP4326415B2 - 車両用の電源装置 - Google Patents
車両用の電源装置 Download PDFInfo
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- JP4326415B2 JP4326415B2 JP2004199861A JP2004199861A JP4326415B2 JP 4326415 B2 JP4326415 B2 JP 4326415B2 JP 2004199861 A JP2004199861 A JP 2004199861A JP 2004199861 A JP2004199861 A JP 2004199861A JP 4326415 B2 JP4326415 B2 JP 4326415B2
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- voltage
- leakage
- battery
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- detection circuit
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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
- 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
-
- 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
- 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
- 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]
- B60L58/14—Preventing excessive discharging
-
- 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
- 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
- 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]
- B60L58/15—Preventing overcharging
-
- 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
- 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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
-
- 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
- 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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
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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
-
- 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]
-
- 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
- B60L2240/547—Voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—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
- 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
- B60R16/03—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 for supply of electrical power to vehicle subsystems or for
-
- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Description
この図は、プラス側の電圧検出回路3Aで漏電抵抗を検出する。電圧検出回路3は、漏電抵抗を検出するときに、検出スイッチ8をオンにする。検出スイッチ8は、電池モジュール2の特定点10を漏電検出抵抗6を介してシャーシー7に接続する。走行用バッテリ1が漏電して、いいかえると漏電抵抗が無限大でないと、矢印Aで示すループでシャーシー7を通じて漏電電流(I)が流れる。この漏電電流(I)は、漏電検出抵抗6の両端にシャーシー電圧(Vl)を発生させる。シャーシー電圧(Vl)は、マルチプレクサ4を切り換えて、電圧検出部5に検出される。すなわち、図に示すように、一対の入力端子がマルチプレクサ4を介して漏電検出抵抗6の両端に接続されて、プラス側電位はシャーシー電圧(Vl)を検出する。
漏電検出抵抗6に流れる電流が漏電抵抗にも流れるので、この電流(I)によって、漏電抵抗の両端に、以下の数2で示される電圧(VR)が発生する。
[第1チャンネル]
漏電検出抵抗6と検出スイッチ8との接続点に接続。
マルチプレクサ4が、第1チャンネル(1ch)に切り換えられると、電圧検出部5は、漏電検出抵抗6の両端の電圧を検出する。漏電検出抵抗6の両端の電圧は、特定点10に対するシャーシー7の電圧、すなわちシャーシー電圧(Vl)となる。したがって、マルチプレクサ4が第1チャンネルに切り換えられる状態で、電圧検出部5はシャーシー電圧(Vl)を検出する。
走行用バッテリ1のマイナス側出力に接続。
マルチプレクサ4が、第2チャンネル(2ch)に切り換えられると、電圧検出部5は、特定点10に対するマイナス側出力電圧(Vb)を検出する。この電圧は、電池モジュール2を直列に接続している個数で特定されるので、必ずしも電圧検出回路3で検出しないで推定できるが、電圧検出回路3で検出すると正確に特定できる。
[第1チャンネル]
プラス側の電圧検出回路3Aと同じように、漏電検出抵抗6と検出スイッチ8との接続点に接続。
マルチプレクサ4が、第1チャンネル(1ch)に切り換えられると、電圧検出部5は、漏電検出抵抗6の両端の電圧を検出する。漏電検出抵抗6の両端の電圧は、特定点10に対するシャーシー7の電圧、すなわちシャーシー電圧(Vl)となる。したがって、マルチプレクサ4が第1チャンネルに切り換えられる状態で、電圧検出部5はシャーシー電圧(Vl)を検出する。
走行用バッテリ1のプラス側出力に接続。
マルチプレクサ4が、第2チャンネル(2ch)に切り換えられると、電圧検出部5は、特定点10に対するプラス側出力電圧(Vc)を検出する。この電圧も、電池モジュール2を直列に接続している個数で特定されるので、必ずしも電圧検出回路3で検出しないで推定できるが、電圧検出回路3で検出すると正確に特定できる。
また、この漏電検出回路100’は、tのタイミングで組電池10’の両端の端子間電圧VT(t)を測定する回路を備え、漏電演算部40’が、漏電箇所が一箇所である場合に、tのタイミングで漏電が発生した電池端子の電圧をVl(t)として、この電圧を端子間電圧VT(t)と比例定数KlとによりKlVT(t)と表わされるときに、以下の数9に基づいてを演算し、klに基づいて漏電箇所を推定する。
以上のようにして、漏電抵抗を検出する方法は、特定の数式に基づいて漏電に関する情報を演算でき、しかも特別な装置を付加する必要がないため既存の設備に容易に適用して、安価かつ簡単に漏電抵抗値や漏電の位置などを特定して速やかに必要な策を講じ、電動車両を安全に使用することができる。
以下に、漏電検出回路100’と、この回路を用いた漏電検出方法を詳細に説明する。
2…電池モジュール
3…電圧検出回路 3A…プラス側の電圧検出回路
3B…マイナス側の電圧検出回路
4…マルチプレクサ
5…電圧検出部 5A…差動アンプ
6…漏電検出抵抗
7…シャーシー
8…検出スイッチ
9…バッテリーECU
10…特定点
11…基準入力端子
12…CPU
13…A/Dコンバータ
14…絶縁回路 14A…フォトモスリレー
14a…発光ダイオード
14b…フォトトランジスター
15…制御回路
16…漏電試験抵抗
17…スイッチング素子
18…信号アース
50…漏電検出回路
51…漏電検出抵抗
52…漏電検出スイッチ
53…電圧検出回路
100’…電動車両用漏電検出回路
200’…電圧検出手段
10’…組電池
11’…電池
20’…電圧検出回路
30’…電流検出回路
40’…漏電演算部
SW1 …漏電検出スイッチ
SW2 …漏電検出スイッチ
R0〜n…漏電抵抗
Ra …漏電検出抵抗
Rb …漏電検出抵抗
Claims (2)
- 複数の電池モジュール(2)を直列に接続している走行用バッテリ(1)と、この走行用バッテリ(1)の電池電圧を検出する電圧検出回路(3)とを備え、電圧検出回路(3)は、電圧を検出する電池モジュール(2)を時分割に切り換えるマルチプレクサ(4)と、このマルチプレクサ(4)で切り換えられる電池モジュール(2)の電圧を検出する電圧検出部(5)とを備えており、
電池モジュール(2)の中間電圧となる位置、もしくは中間電圧からずれた位置を特定点(10)とし、この特定点(10)を漏電検出抵抗(6)を介してシャーシー(7)に接続すると共に、電圧検出回路(3)のマルチプレクサ(4)を切り換えて、電圧検出回路(3)でもって走行用バッテリ(1)のプラス側出力電圧と、マイナス側出力電圧と、漏電検出抵抗(6)の両端に誘導されるシャーシー電圧と、を検出し、この検出されたプラス側出力電圧とマイナス側出力電圧とシャーシー電圧を演算して、プラス出力側とシャーシー(7)との漏電抵抗及びマイナス出力側とシャーシー(7)との漏電抵抗を検出する車両用の電源装置。 - 電圧検出回路(3)が、漏電抵抗を検出する状態で、電池モジュール(2)の特定点(10)を漏電検出抵抗(6)を介してシャーシー(7)に接続する検出スイッチ(8)を備えており、この検出スイッチ(8)をオンに切り換えて、電池モジュール(2)の特定点(10)をシャーシー(7)に接続し、漏電検出抵抗(6)に誘導されるシャーシー電圧を検出する請求項1に記載される車両用の電源装置
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004199861A JP4326415B2 (ja) | 2004-07-06 | 2004-07-06 | 車両用の電源装置 |
DE102005031146A DE102005031146B4 (de) | 2004-07-06 | 2005-07-04 | Energieversorgungsvorrichtung für ein Fahrzeug |
CNB2005100821837A CN100511907C (zh) | 2004-07-06 | 2005-07-04 | 车辆用电源装置 |
US11/172,824 US7453232B2 (en) | 2004-07-06 | 2005-07-05 | Leakage detector for a power supply apparatus for a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004199861A JP4326415B2 (ja) | 2004-07-06 | 2004-07-06 | 車両用の電源装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006025502A JP2006025502A (ja) | 2006-01-26 |
JP4326415B2 true JP4326415B2 (ja) | 2009-09-09 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004199861A Expired - Fee Related JP4326415B2 (ja) | 2004-07-06 | 2004-07-06 | 車両用の電源装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7453232B2 (ja) |
JP (1) | JP4326415B2 (ja) |
CN (1) | CN100511907C (ja) |
DE (1) | DE102005031146B4 (ja) |
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EP2322945B1 (en) * | 2008-08-11 | 2014-11-26 | LG Chem, Ltd. | Apparatus and method for sensing battery leakage current, and battery driving apparatus and battery pack comprising the apparatus |
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JP5221468B2 (ja) * | 2009-02-27 | 2013-06-26 | 株式会社日立製作所 | 電池監視装置 |
WO2010135260A2 (en) * | 2009-05-18 | 2010-11-25 | Boston-Power, Inc. | Energy efficient and fast charge modes of a rechargeable battery |
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DE20219429U1 (de) * | 2002-12-16 | 2003-03-13 | Goethe Stefan | Fehlerstrom-Schutzschalter zur Aufnahme von Anschlüssen |
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