JP4466657B2 - 車両用乗員保護装置 - Google Patents
車両用乗員保護装置 Download PDFInfo
- Publication number
- JP4466657B2 JP4466657B2 JP2007001779A JP2007001779A JP4466657B2 JP 4466657 B2 JP4466657 B2 JP 4466657B2 JP 2007001779 A JP2007001779 A JP 2007001779A JP 2007001779 A JP2007001779 A JP 2007001779A JP 4466657 B2 JP4466657 B2 JP 4466657B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- fet
- voltage
- switching element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- 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
-
- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Air Bags (AREA)
Description
まず、図1を参照してエアバッグ装置の構成について説明する。ここで、図1は、第1実施形態におけるエアバッグ装置の回路図である。
また、並列接続されたコンデンサ70、71の一端は、エアバッグ制御用IC5のCSAF端子を介してサードFETドライバ回路50に接続されている。
次に、第2実施形態のエアバッグ装置について説明する。第2実施形態のエアバッグ装置は、第1実施形態のエアバッグ装置に対して、サードFETドライバ回路用電源の逆流防止用のダイオードをエアバッグ制御用ICに内蔵するとともに、異常検出回路を設けることで、サードFETドライバ回路用電源のコンデンサの数を減らしたものである。
Claims (5)
- 主電源と、
該主電源が遮断したとき、該主電源に代わって電圧を供給するバックアップ電源と、
スクイブの一端に接続されるハイサイドスイッチング素子と、該スクイブの他端に接続されるローサイドスイッチング素子とを有する点火回路と、
該主電源と点火回路との間に配置されるスイッチング素子と、
該点火回路に所定電圧が供給されるように該スイッチング素子を駆動する駆動回路と、
該主電源に接続され、該主電源が遮断したとき、該主電源に代わって該駆動回路に電圧を供給する駆動回路用電源とを備えた車両用乗員保護装置において、
該スイッチング素子は、該主電源と該ハイサイドスイッチング素子との間に接続され、該ハイサイドスイッチング素子に供給される電圧を制御し、
該駆動回路は、該スイッチング素子に印加する電圧を制御して、該ハイサイドスイッチング素子に所定電圧が供給されるように該スイッチング素子を駆動し、
該駆動回路用電源は、該主電源によって充電されるコンデンサからなり、該コンデンサは、該主電源が遮断したとき、該バックアップ電源に比べ電圧の低下が緩やかになるように容量が設定され、該主電源が遮断したとき、該スイッチング素子に印加する電圧を、該主電源に代わって該駆動回路に供給することを特徴とする車両用乗員保護装置。 - 前記駆動回路用電源は、並列接続された複数のコンデンサによって構成されていることを特徴とする請求項1に記載の車両用乗員保護装置。
- 前記駆動回路は、前記駆動回路用電源の出力を、接地して短絡させることがないように動作することを特徴とする請求項1又は2に記載の車両用乗員保護装置。
- 前記駆動回路の出力を接地して、前記駆動回路による前記スイッチング素子の駆動を禁止する駆動禁止回路を有することを特徴とする請求項1又は2に記載の車両用乗員保護装置。
- 前記駆動回路及び前記駆動禁止回路は、前記駆動回路用電源の出力を、接地して短絡させることがないように動作することを特徴とする請求項4に記載の車両用乗員保護装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007001779A JP4466657B2 (ja) | 2007-01-09 | 2007-01-09 | 車両用乗員保護装置 |
US12/006,496 US7772714B2 (en) | 2007-01-09 | 2008-01-03 | Passive safety device for vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007001779A JP4466657B2 (ja) | 2007-01-09 | 2007-01-09 | 車両用乗員保護装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008168691A JP2008168691A (ja) | 2008-07-24 |
JP4466657B2 true JP4466657B2 (ja) | 2010-05-26 |
Family
ID=39593647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007001779A Expired - Fee Related JP4466657B2 (ja) | 2007-01-09 | 2007-01-09 | 車両用乗員保護装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7772714B2 (ja) |
JP (1) | JP4466657B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5557020B2 (ja) * | 2010-07-21 | 2014-07-23 | 株式会社デンソー | 車両用乗員保護装置 |
DE102010046232A1 (de) * | 2010-09-22 | 2011-05-05 | Daimler Ag | Einrichtung zur Stabilisierung einer Versorgungsspannung in einem Kraftfahrzeug |
EP2657091B1 (en) * | 2012-04-23 | 2019-06-12 | Autoliv Development AB | A drive arrangement |
JP5942902B2 (ja) * | 2013-03-12 | 2016-06-29 | 株式会社デンソー | エアバッグ装置 |
JP6489949B2 (ja) * | 2015-06-11 | 2019-03-27 | ルネサスエレクトロニクス株式会社 | エアバッグ制御装置及び半導体装置 |
CN105867573A (zh) * | 2016-03-31 | 2016-08-17 | 华为技术有限公司 | 备电电路及用电设备 |
DE102016209653A1 (de) | 2016-06-02 | 2017-12-07 | Robert Bosch Gmbh | Energieversorgungsvorrichtung für ein Personenschutzsystem |
CN106427616B (zh) * | 2016-09-20 | 2018-11-09 | 江苏大学 | 一种基于电荷泵的复合电源及其在不同工况时的切换方法 |
DE102017205618A1 (de) * | 2017-04-03 | 2018-10-04 | Robert Bosch Gmbh | Vorrichtung und Verfahren zum Bereitstellen einer Aktivierungsspannung für eine Sicherheitseinrichtung für ein Fahrzeug und Sicherheitsvorrichtung |
DE102019203085A1 (de) * | 2019-03-06 | 2020-09-10 | Vitesco Technologies GmbH | Steuergerät zum Betätigen einer Last und Verfahren zum Betreiben eines solchen Steuergeräts |
CN111277042A (zh) * | 2020-02-17 | 2020-06-12 | 上海艾为电子技术股份有限公司 | 芯片和双电源供电电路 |
KR20220053762A (ko) * | 2020-10-22 | 2022-05-02 | 현대자동차주식회사 | 운전자의 안전 지원 장치 및 그 방법 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8915345U1 (de) * | 1988-08-26 | 1990-06-07 | Robert Bosch Gmbh, 7000 Stuttgart | Elektronische Einrichtung zum Ansteuern von Sicherungsmitteln |
US5420790A (en) * | 1994-03-10 | 1995-05-30 | Delco Electronics Corporation | Energy reserve circuit for supplemental inflatable restraint |
US5646454A (en) * | 1994-09-24 | 1997-07-08 | Robert Bosch Gmbh | Electronic safety device for vehicle occupants including a memory device for storing fault conditions and associated control commands |
JPH09188220A (ja) | 1996-01-11 | 1997-07-22 | Kansei Corp | 車両用乗員保護装置 |
JP3252738B2 (ja) | 1997-02-03 | 2002-02-04 | 日本電気株式会社 | 起爆素子着火装置 |
JPH10278726A (ja) | 1997-04-09 | 1998-10-20 | Kansei Corp | 乗員保護装置 |
DE19802042A1 (de) * | 1998-01-21 | 1999-07-22 | Bosch Gmbh Robert | Schaltung zum Überwachen des Zündkreises für eine Sicherheitseinrichtung in einem Kraftfahrzeug |
US6555933B2 (en) * | 1999-02-25 | 2003-04-29 | Siemens Vdo Automotive Corporation | AC firing circuit for air bag systems |
JP2001171477A (ja) * | 1999-12-16 | 2001-06-26 | Calsonic Kansei Corp | 乗員保護装置 |
JP2001341612A (ja) * | 2000-06-01 | 2001-12-11 | Fujitsu Ten Ltd | エアバッグ点火回路 |
JP2002019571A (ja) | 2000-07-05 | 2002-01-23 | Toyota Motor Corp | エアバック制御装置 |
JP2004255911A (ja) * | 2003-02-24 | 2004-09-16 | Denso Corp | エアバッグシステム |
JP2007082332A (ja) | 2005-09-14 | 2007-03-29 | Daikin Ind Ltd | Dc−dcコンバータ及びその制御方法 |
-
2007
- 2007-01-09 JP JP2007001779A patent/JP4466657B2/ja not_active Expired - Fee Related
-
2008
- 2008-01-03 US US12/006,496 patent/US7772714B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7772714B2 (en) | 2010-08-10 |
JP2008168691A (ja) | 2008-07-24 |
US20080164760A1 (en) | 2008-07-10 |
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