JP2010239821A - 地絡検知システムを備える電気自動車 - Google Patents
地絡検知システムを備える電気自動車 Download PDFInfo
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- JP2010239821A JP2010239821A JP2009086728A JP2009086728A JP2010239821A JP 2010239821 A JP2010239821 A JP 2010239821A JP 2009086728 A JP2009086728 A JP 2009086728A JP 2009086728 A JP2009086728 A JP 2009086728A JP 2010239821 A JP2010239821 A JP 2010239821A
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- ground fault
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- 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
-
- 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
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
- G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
【解決手段】異なる電圧E1、E2を発生する第1及び第2非接地電源14、12に対して、それぞれ第1及び第2地絡検出部51、52を設け、第1及び第2地絡検出部51、52の動作タイミングを重ならないようにしたので、地絡の誤検出の発生を防止することができる。
【選択図】図13
Description
E1/RL1=Ii11 …(1)
E1/(RL1//R1)=Ii12 …(2)
RL1=R1{(Ii12/Ii11)−1} …(3)
E2/RL2=Ii21 …(4)
E2/(RL2//R2)=Ii22 …(5)
RL2=R2{(Ii22/Ii21)−1} …(6)
12…第2非接地電源(バッテリ) 14…第1非接地電源(燃料電池)
39…地絡判定部 40…ECU
51〜53…第1〜第3地絡検出部
Claims (3)
- 負荷と、前記負荷に電力を供給する電圧(E1)の第1非接地電源と、前記負荷と前記第1非接地電源との間に一方の入出力端子が接続されるコンバータと、前記コンバータの他方の入出力端子に接続され前記第1非接地電源より低電圧(E2(E2<E1))の第2非接地電源と、を備える電気自動車において、
前記第1非接地電源と接地間の絶縁抵抗を第1スイッチを通じて第1検出抵抗の一端に接続し、前記第1検出抵抗の他端を接地部又は交流信号源に接続し、前記第1スイッチの開閉前後の回路インピーダンスの変化に基づき前記第1非接地電源の地絡を検出する第1地絡検出部と、
前記第2非接地電源と接地間の絶縁抵抗を第2スイッチを通じて第2検出抵抗の一端に接続し、前記第2検出抵抗の他端を接地部又は交流信号源に接続し、前記第2スイッチの開閉前後の回路インピーダンスの変化に基づき前記第2非接地電源の地絡を検出する第2地絡検出部と、
前記第1スイッチを閉じているときに前記第2スイッチが閉じることを禁止し、前記第2スイッチを閉じているときに前記第1スイッチが閉じることを禁止する排他制御を行うスイッチ制御部と、
を有することを特徴とする地絡検知システムを備える電気自動車。 - 請求項1記載の地絡検知システムを備える電気自動車において、
前記第1地絡検出部は、
前記第1検出抵抗と前記第1絶縁抵抗による前記交流信号の分圧信号に基づき前記第1非接地電源の地絡を検出する交流方式地絡検出部であり、
前記第2地絡検出部は、
前記第2検出抵抗と前記第2絶縁抵抗による前記交流信号の分圧信号に基づき前記第2非接地電源の地絡を検出する交流方式地絡検出部である
ことを特徴とする地絡検知システムを備える電気自動車。 - 請求項1記載の地絡検知システムを備える電気自動車において、
前記第1地絡検出部は、前記第1スイッチの開閉前後の回路インピーダンスの変化に基づく電圧変化又は電流変化を計測する直流方式地絡検出部であり、
前記第2地絡検出部は、前記第2スイッチングの開閉前後の回路インピーダンスの変化に基づく電圧変化又は電流変化を計測する直流方式地絡検出部である
ことを特徴とする地絡検知システムを備える電気自動車。
Priority Applications (2)
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JP2009086728A JP4937294B2 (ja) | 2009-03-31 | 2009-03-31 | 地絡検知システムを備える電気自動車 |
US12/750,214 US8164344B2 (en) | 2009-03-31 | 2010-03-30 | Electric vehicle with ground fault detecting system |
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JP2009086728A JP4937294B2 (ja) | 2009-03-31 | 2009-03-31 | 地絡検知システムを備える電気自動車 |
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JP2010239821A true JP2010239821A (ja) | 2010-10-21 |
JP4937294B2 JP4937294B2 (ja) | 2012-05-23 |
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JP2009086728A Expired - Fee Related JP4937294B2 (ja) | 2009-03-31 | 2009-03-31 | 地絡検知システムを備える電気自動車 |
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US (1) | US8164344B2 (ja) |
JP (1) | JP4937294B2 (ja) |
Cited By (5)
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JP2015228786A (ja) * | 2014-06-02 | 2015-12-17 | 現代自動車株式会社Hyundaimotor Company | 燃料電池車両の安全システムおよびその制御方法 |
KR101734724B1 (ko) * | 2015-12-14 | 2017-05-12 | 현대오트론 주식회사 | 전기 자동차의 누전 검출 장치 |
KR101734723B1 (ko) * | 2015-12-14 | 2017-05-12 | 현대오트론 주식회사 | 전기 자동차의 누전 검출 장치 |
KR101734725B1 (ko) * | 2015-12-14 | 2017-05-12 | 현대오트론 주식회사 | 전기 자동차의 누전 검출 장치 |
JP2018074623A (ja) * | 2016-10-24 | 2018-05-10 | 富士電機株式会社 | 無停電電源装置 |
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KR20120103205A (ko) * | 2011-03-10 | 2012-09-19 | 삼성에스디아이 주식회사 | 배터리의 누설전류 검출장치 |
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US20100244849A1 (en) | 2010-09-30 |
JP4937294B2 (ja) | 2012-05-23 |
US8164344B2 (en) | 2012-04-24 |
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