WO1997006980A2 - Anordnung zum kontrollieren des widerstandes einer an einem übertrager angeschlossenen last - Google Patents
Anordnung zum kontrollieren des widerstandes einer an einem übertrager angeschlossenen last Download PDFInfo
- Publication number
- WO1997006980A2 WO1997006980A2 PCT/DE1996/000739 DE9600739W WO9706980A2 WO 1997006980 A2 WO1997006980 A2 WO 1997006980A2 DE 9600739 W DE9600739 W DE 9600739W WO 9706980 A2 WO9706980 A2 WO 9706980A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transformer
- primary
- resistance
- load
- arrangement according
- 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.)
- Ceased
Links
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
- B60R21/0173—Diagnostic or recording means therefor
-
- 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
-
- 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
- B60R16/023—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 transmission of signals between vehicle parts or subsystems
- B60R16/027—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 transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Definitions
- the present invention relates to an arrangement for controlling the resistance of a load connected to a transformer on the secondary side - preferably the load
- a rotary transmitter is used, for example, for signal transmission between a control unit and an airbag installed in a steering wheel of a vehicle.
- the functionality of an airbag must be checked continuously so that it is immediately ready for use in any emergency situation.
- the resistance of the squib which is typically in the range of
- the prior art cited provides an oscillating circuit on the secondary side of the rotary transformer, which is excited by a control signal from the primary side. After the control signal has been switched off, the decay of the response signal of the resonant circuit is transmitted back to the primary side and the resistance on the secondary side is determined from the time constant of the decaying response signal.
- the resistance of a load connected to a transmitter on the secondary side - preferably the squib of an airbag - thereby
- FIG. 1 shows a transformer with a load connected to it.
- FIG. 2 shows a primary-side replacement circuit diagram of a transformer with devices connected to it for determining the inductance of the transformer.
- FIG. 3 shows a voltage curve measured on the primary side of the transformer.
- FIG. 4 shows the dependence of the transformer inductance on a load resistance connected on the secondary side.
- FIG. 1 shows the basic circuit diagram of a transformer and a load resistor Rz connected to it on the secondary side.
- the transmitter Ü is, for example, a rotary transmitter, which is between one with an airbag equipped steering wheel and the fixed steering column is arranged.
- the load Rz connected on the secondary side then corresponds to the resistance of a squib of the airbag.
- a squib typically has a resistance Rz of approximately 2 ohms. If the resistance of the squib changes beyond certain limit values, this indicates that the function of the airbag is disturbed. Such a situation must be signaled in the vehicle.
- the control of the squib resistance Rz is carried out continuously and repeatedly.
- the rise and fall time constant ⁇ depends both on the inductance Ls and the resistance Rs of the transformer. Both the inductance Ls and the resistance R ⁇ of the transformer show a dependence on the load resistance Rz connected on the secondary side. The dependence of the resistance R ⁇ on the load resistance Rz but is not clear.
- the measuring resistor Rm is therefore chosen to be so large (at least 10 times as large as Rs) that the influence of the resistor Rs almost disappears at the time constant ⁇ .
- the rise or fall time constant ⁇ of the measuring voltage Um is then almost only dependent on the inductance Ls of the transformer.
- ⁇ T denotes the time determined by the time recording unit Ze when the measuring voltage changes between the two voltage thresholds Uu and Uo (cf. FIG. 3).
- the equation (5) gives the following for the time constant:
- the inductance Ls of the transformer is:
- FIG. 4 shows the dependence of the inductance Ls measured on the primary side on the secondary side Transmitter connected load resistance Rz shown. This dependency is clear.
- the two characteristic curves for the inductance Ls drawn above and below the solid characteristic curve result from an axial offset between the primary and the
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Air Bags (AREA)
- Protection Of Transformers (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9508797A JPH11511089A (ja) | 1995-08-19 | 1996-04-27 | トランスに接続された負荷の抵抗を監視するための装置 |
| DE59607889T DE59607889D1 (de) | 1995-08-19 | 1996-04-27 | Anordnung zum kontrollieren des widerstandes einer an einem übertrager angeschlossenen last |
| US09/029,092 US6016104A (en) | 1995-08-19 | 1996-04-27 | System for controlling the resistance of a load connected to a transformer |
| EP96910908A EP0844944B1 (de) | 1995-08-19 | 1996-04-27 | Anordnung zum kontrollieren des widerstandes einer an einem übertrager angeschlossenen last |
| BR9610215A BR9610215A (pt) | 1995-08-19 | 1996-04-27 | Arranjo para o controle da resistência de uma carga ligada a um transmissor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19530588A DE19530588A1 (de) | 1995-08-19 | 1995-08-19 | Anordnung zum Kontrollieren des Widerstandes einer an einem Übertrager angeschlossenen Last |
| DE19530588.4 | 1995-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997006980A2 true WO1997006980A2 (de) | 1997-02-27 |
| WO1997006980A3 WO1997006980A3 (de) | 1997-03-20 |
Family
ID=7769922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1996/000739 Ceased WO1997006980A2 (de) | 1995-08-19 | 1996-04-27 | Anordnung zum kontrollieren des widerstandes einer an einem übertrager angeschlossenen last |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6016104A (de) |
| EP (1) | EP0844944B1 (de) |
| JP (1) | JPH11511089A (de) |
| KR (1) | KR100417319B1 (de) |
| BR (1) | BR9610215A (de) |
| DE (2) | DE19530588A1 (de) |
| WO (1) | WO1997006980A2 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19530587A1 (de) * | 1995-08-19 | 1997-02-20 | Bosch Gmbh Robert | Anordnung zum Überprüfen des Widerstandes einer an einem Übertrager angeschlossenen Last |
| DE19737506C1 (de) * | 1997-08-28 | 1998-11-12 | Sican F & E Gmbh Sibet | Anordnung zum Ansteuern einer Auslösevorrichtung eines Rückhaltesystems für Fahrzeuginsassen mit einem Übertrager |
| DE19744760C1 (de) * | 1997-10-10 | 1999-03-18 | Bosch Gmbh Robert | Vorrichtung zum kontaktfreien Übertragen von Signalen zwischen Lenkrad und Lenksäule |
| TW554625B (en) * | 2000-12-08 | 2003-09-21 | Silicon Graphics Inc | Compact flat panel color calibration system |
| DE10102995B4 (de) * | 2001-01-24 | 2006-05-24 | Robert Bosch Gmbh | Datenbus für Rückhaltemittel in einem Fahrzeug |
| US6484974B1 (en) | 2001-09-10 | 2002-11-26 | Union Switch & Signal, Inc. | Controller for switch machine |
| DE10245783A1 (de) * | 2002-10-01 | 2004-04-15 | Robert Bosch Gmbh | Anordnung zum kontaktlosen Übertragen von einem Signal zwischen einem ersten und einem zweiten Fahrzeugteil |
| DE102012201049A1 (de) | 2012-01-25 | 2013-07-25 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Erkennen einer Einsatzfähigkeit einer Ansteuervorrichtung |
| JP5973891B2 (ja) * | 2012-11-22 | 2016-08-23 | ボッシュ株式会社 | エアバッグ制御装置 |
| FR3038269B1 (fr) * | 2015-06-30 | 2017-08-25 | Mersen France Amiens Sas | Surveillance de l'etat d'une bande de transmission de courant destinee a frotter contre un fil de catenaire. |
| US10371739B2 (en) * | 2015-10-30 | 2019-08-06 | Landis+Gyr Llc | Arrangement for detecting a meter maintenance condition using winding resistance |
| DE102018218238A1 (de) | 2018-10-24 | 2020-04-30 | Rolls-Royce Deutschland Ltd & Co Kg | Überwachung und Auslösung von elektrischen Sicherungen |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3540031A1 (de) * | 1985-08-21 | 1987-02-26 | Licentia Gmbh | Anordnung zum ueberwachen eines veraenderlichen elektrischen widerstandes |
| JP2578368B2 (ja) * | 1988-04-15 | 1997-02-05 | ダイムラー―ベンツ・アクチエンゲゼルシヤフト | 監視すべき負荷を含む回路の検出兼エネルギ供給装置 |
| DE3812633A1 (de) * | 1988-04-15 | 1989-10-26 | Daimler Benz Ag | Verfahren zur kontaktlosen widerstandsmessung |
| US4893109A (en) * | 1988-10-05 | 1990-01-09 | Ford Motor Company | Airbag electrical igniter readiness detector |
| US4956631A (en) * | 1989-03-20 | 1990-09-11 | Mitsubishi Denki Kabushiki Kaisha | Fault detector for vehicle safety system |
| JPH0742878Y2 (ja) * | 1989-04-14 | 1995-10-04 | 日本精工株式会社 | 乗員保護装置の故障検出装置 |
| SE9003728L (sv) * | 1990-11-23 | 1991-12-09 | Volvo Ab | Diagnoskrets foer detektering av funktionsfel vid elektriskt utloesbara taendare |
| JP2551255B2 (ja) * | 1991-03-14 | 1996-11-06 | 日本電装株式会社 | 車両用乗員保護システムのための故障判定装置 |
| US5461358A (en) * | 1993-09-08 | 1995-10-24 | Delco Electronics Corporation | Resistance measurement circuit for external deployment path of sir system |
| JP2661863B2 (ja) * | 1993-10-29 | 1997-10-08 | 富士通テン株式会社 | 車両のエアバッグシステムにおけるスクイブライン系診断装置 |
| JP3505789B2 (ja) * | 1994-06-03 | 2004-03-15 | 株式会社デンソー | 乗員保護装置用故障診断回路およびその診断方法 |
| US5541523A (en) * | 1994-09-19 | 1996-07-30 | Ford Motor Company | System for detecting operability of an airbag squib resistor |
-
1995
- 1995-08-19 DE DE19530588A patent/DE19530588A1/de not_active Ceased
-
1996
- 1996-04-27 EP EP96910908A patent/EP0844944B1/de not_active Expired - Lifetime
- 1996-04-27 DE DE59607889T patent/DE59607889D1/de not_active Expired - Fee Related
- 1996-04-27 KR KR10-1998-0701181A patent/KR100417319B1/ko not_active Expired - Fee Related
- 1996-04-27 WO PCT/DE1996/000739 patent/WO1997006980A2/de not_active Ceased
- 1996-04-27 BR BR9610215A patent/BR9610215A/pt not_active IP Right Cessation
- 1996-04-27 US US09/029,092 patent/US6016104A/en not_active Expired - Fee Related
- 1996-04-27 JP JP9508797A patent/JPH11511089A/ja not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US6016104A (en) | 2000-01-18 |
| EP0844944B1 (de) | 2001-10-10 |
| EP0844944A1 (de) | 1998-06-03 |
| DE19530588A1 (de) | 1997-02-20 |
| BR9610215A (pt) | 1999-06-29 |
| JPH11511089A (ja) | 1999-09-28 |
| KR19990037702A (ko) | 1999-05-25 |
| KR100417319B1 (ko) | 2004-05-10 |
| WO1997006980A3 (de) | 1997-03-20 |
| DE59607889D1 (de) | 2001-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3812633C2 (de) | ||
| EP0844944A1 (de) | Anordnung zum kontrollieren des widerstandes einer an einem übertrager angeschlossenen last | |
| WO1982002862A1 (fr) | Dispositif antiblocage | |
| DE102006034579A1 (de) | Stromerfassungsvorrichtung und Verfahren zur Stromerfassung | |
| DE4112665A1 (de) | Einrichtung zur erfassung einer veraenderlichen groesse in kraftfahrzeugen | |
| DE3334548C2 (de) | ||
| EP0894270B1 (de) | Verfahren zum messen des widerstandes einer an einem drehübertrager angeschlossenen last | |
| DE4445819C2 (de) | Abstands/Positions-Meßvorrichtung | |
| WO2009138398A1 (de) | Sensoreinrichtung und fehlererkennungsverfahren für elektronische schaltungen in kraftfahrzeugen | |
| EP0844945B1 (de) | Anordnung zum kontrollieren des widerstandes einer an einem übertrager angeschlossenen last | |
| DE3505765C2 (de) | ||
| EP0898368B1 (de) | Sensoreinrichtung | |
| DE3831193A1 (de) | Messwertgeber-fehlererkennungsschaltung | |
| WO2015036280A1 (de) | Isolationsüberwachung für reihenkompensierte wicklungen eines kontaktlosen energieübertragungssystems | |
| DE112015004140T5 (de) | Kapazitiver Belegungs- oder Annäherungssensor | |
| EP0856160B1 (de) | Anordnung zum kontrollieren einer an einem übertrager sekundärseitig angeschlossenen last | |
| DE10041989B4 (de) | Fehlertolerante Sensorik | |
| EP0844946B1 (de) | Anordnung zum überprüfen des widerstandes einer an einem übertrager angeschlossenen last | |
| EP0553472B1 (de) | Verfahren und Vorrichtung zum Prüfen einer Einrichtung, die wenigstens einen Mikrorechner enthält | |
| EP2010934A1 (de) | Verfahren und vorrichtung zur prüfung von stromwandlern mittels hochstromimpuls | |
| EP0561054B1 (de) | Verfahren und Messvorrichtung zur Messung der Zeitkonstanten eines elektrischen Wegaufnehmers | |
| EP3837497B1 (de) | Transformator mit testschaltung | |
| WO1999001774A1 (de) | Diagnoseeinrichtung zur erkennung von fehlschlüssen bei einem induktiven sensor | |
| EP1205734A2 (de) | Messverfahren für eine Mechatronik | |
| DE19722549A1 (de) | Elektrische Meßeinrichtung bzw. elektrisches Meßverfahren zur Erzeugung eines elektrischen Signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A2 Designated state(s): BR JP KR US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| AK | Designated states |
Kind code of ref document: A3 Designated state(s): BR JP KR US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 1996910908 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref country code: JP Ref document number: 1997 508797 Kind code of ref document: A Format of ref document f/p: F |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1019980701181 Country of ref document: KR Ref document number: 09029092 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 1996910908 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1019980701181 Country of ref document: KR |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1996910908 Country of ref document: EP |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1019980701181 Country of ref document: KR |


