JP4947361B2 - 車両用乗員保護装置 - Google Patents
車両用乗員保護装置 Download PDFInfo
- Publication number
- JP4947361B2 JP4947361B2 JP2007113221A JP2007113221A JP4947361B2 JP 4947361 B2 JP4947361 B2 JP 4947361B2 JP 2007113221 A JP2007113221 A JP 2007113221A JP 2007113221 A JP2007113221 A JP 2007113221A JP 4947361 B2 JP4947361 B2 JP 4947361B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- ignition
- discharge
- switching element
- voltage
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/017—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Description
Claims (4)
- 電源と、前記電源に接続され、前記電源の電圧を所定電圧に変換して出力する定電圧回路と、前記定電圧回路に接続されるとともに、スクイブが接続され、前記スクイブに点火電流を供給する複数の点火回路と、一端が前記定電圧回路と複数の前記点火回路の接続点に接続されるとともに、他端が接地され、複数の前記点火回路から放射されるノイズを除去するコンデンサとを備えた車両用乗員保護装置において、
前記点火回路が点火電流の供給を終了した直後に、前記コンデンサに蓄積された電荷を放電する放電回路を有することを特徴とする車両用乗員保護装置。 - 前記放電回路は、一端が前記コンデンサの一端に接続される抵抗と、前記抵抗の他端に接続され、オンすることで前記抵抗の他端を接地する放電用スイッチング素子と、前記点火回路が点火電流の供給を終了した直後に、前記放電用スイッチング素子をオンさせる放電制御回路とを有す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。
- 前記放電回路は、一端が前記コンデンサの一端に接続され、一端側から他端側に所定電流を供給する定電流源と、前記定電流源の他端に接続され、オンすることで前記定電流源の他端を接地する放電用スイッチング素子と、前記点火回路が点火電流の供給を終了した直後に、前記放電用スイッチング素子をオンさせる放電制御回路とを有す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。
- 前記放電制御回路は、複数の前記点火回路を制御するとともに、複数の前記点火回路の制御情報に基づいて前記放電用スイッチング素子をオンさせることを特徴とする請求項1〜3のいずれかに記載の車両用乗員保護装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007113221A JP4947361B2 (ja) | 2007-04-23 | 2007-04-23 | 車両用乗員保護装置 |
US12/080,963 US7881037B2 (en) | 2007-04-23 | 2008-04-08 | Vehicle occupant protection apparatus |
EP08007116.0A EP1985506B1 (en) | 2007-04-23 | 2008-04-10 | Vehicle occupant protection apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007113221A JP4947361B2 (ja) | 2007-04-23 | 2007-04-23 | 車両用乗員保護装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008265614A JP2008265614A (ja) | 2008-11-06 |
JP4947361B2 true JP4947361B2 (ja) | 2012-06-06 |
Family
ID=39639510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007113221A Expired - Fee Related JP4947361B2 (ja) | 2007-04-23 | 2007-04-23 | 車両用乗員保護装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7881037B2 (ja) |
EP (1) | EP1985506B1 (ja) |
JP (1) | JP4947361B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010031596B4 (de) * | 2010-07-21 | 2020-06-10 | Robert Bosch Gmbh | Steuergerät und Verfahren zur Ansteuerung von Personenschutzmitteln für ein Fahrzeug |
DE102012210931A1 (de) * | 2012-06-27 | 2014-01-02 | Robert Bosch Gmbh | Verfahren zur Überprüfung einer Versorgungsschaltung und zugehörige Versorgungsschaltung für mindestens einen Zündkreis |
JP5942902B2 (ja) * | 2013-03-12 | 2016-06-29 | 株式会社デンソー | エアバッグ装置 |
US11101636B2 (en) | 2017-12-20 | 2021-08-24 | Veoneer Us, Inc. | Voltage regulator for a squib driver circuit |
US11139811B2 (en) | 2019-04-30 | 2021-10-05 | Stmicroelectronics S.R.L. | Driver circuit, corresponding device and system |
CN215733516U (zh) * | 2021-01-04 | 2022-02-01 | 罗伯特·博世有限公司 | 电容充电电路、安全气囊控制器及安全气囊*** |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3876454T4 (de) * | 1988-09-14 | 1998-11-05 | Bosch Gmbh Robert | Airbag-system zum schützen von kraftfahrzeuginsassen. |
US5046149A (en) * | 1989-12-08 | 1991-09-03 | Delco Electronics Corporation | Inflatable restraint firing circuit diagnostics |
JPH0747914A (ja) * | 1993-08-05 | 1995-02-21 | Aisin Seiki Co Ltd | 車両用安全装置の制御回路の故障検出装置 |
JPH08188113A (ja) * | 1995-01-06 | 1996-07-23 | Kansei Corp | 車両用乗員保護装置 |
JPH08332913A (ja) * | 1995-04-07 | 1996-12-17 | Kansei Corp | 車両用乗員保護装置 |
US5882034A (en) * | 1996-05-02 | 1999-03-16 | Motorola, Inc. | Automobile airbag system |
US5872460A (en) * | 1996-10-04 | 1999-02-16 | Delco Electronics Corp. | Fast acting FET test circuit with current detection for SIR diagnostics |
DE19705430C1 (de) * | 1997-02-13 | 1998-10-01 | Bosch Gmbh Robert | Verfahren zum Messen des Widerstandes einer an einem Drehübertrager angeschlossenen Last und Anordnung zur Durchführung des Verfahrens |
JP3405173B2 (ja) * | 1998-02-18 | 2003-05-12 | トヨタ自動車株式会社 | 車両用乗員保護装置の点火制御方法 |
JP3582822B2 (ja) * | 2000-08-03 | 2004-10-27 | 株式会社ホンダエレシス | 車両用乗員保護装置及びその制御方法 |
JP4187085B2 (ja) * | 2001-08-24 | 2008-11-26 | 三菱電機株式会社 | 車両用乗員保護装置 |
JP2004255911A (ja) | 2003-02-24 | 2004-09-16 | Denso Corp | エアバッグシステム |
JP2005255032A (ja) * | 2004-03-12 | 2005-09-22 | Denso Corp | 車両用乗員保護装置 |
-
2007
- 2007-04-23 JP JP2007113221A patent/JP4947361B2/ja not_active Expired - Fee Related
-
2008
- 2008-04-08 US US12/080,963 patent/US7881037B2/en not_active Expired - Fee Related
- 2008-04-10 EP EP08007116.0A patent/EP1985506B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7881037B2 (en) | 2011-02-01 |
EP1985506A2 (en) | 2008-10-29 |
EP1985506B1 (en) | 2014-08-20 |
JP2008265614A (ja) | 2008-11-06 |
EP1985506A3 (en) | 2010-12-01 |
US20080258444A1 (en) | 2008-10-23 |
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