WO1991008930A1 - Circuit multiplex pour au moins un consommateur dans un vehicule automobile - Google Patents

Circuit multiplex pour au moins un consommateur dans un vehicule automobile Download PDF

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Publication number
WO1991008930A1
WO1991008930A1 PCT/EP1990/001912 EP9001912W WO9108930A1 WO 1991008930 A1 WO1991008930 A1 WO 1991008930A1 EP 9001912 W EP9001912 W EP 9001912W WO 9108930 A1 WO9108930 A1 WO 9108930A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching element
multiplex
consumer
signal
multiplex circuit
Prior art date
Application number
PCT/EP1990/001912
Other languages
German (de)
English (en)
Inventor
Ferdinand PIËCH
Original Assignee
Audi Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Audi Ag filed Critical Audi Ag
Publication of WO1991008930A1 publication Critical patent/WO1991008930A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • 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
    • B60R16/0315—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 using multiplexing techniques
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0083—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 using redundant components, e.g. two pressure tubes for pressure switch

Definitions

  • the invention relates to a multiplex circuit according to the preamble of claim 1.
  • multiplex circuits are known in which coded signals actuate switching elements with the aid of a multiplex circuit, which switch consumers on or off.
  • the switching elements can be transistors, relays or other components such as thyristors or the like.
  • the object of the invention is to increase the security of multiplex circuits.
  • the controlled switching elements are provided in redundancy at least for some of the consumers.
  • a current sensor is assigned to the activated switching element. If the switching element is now controlled by the decoder / encoder, but the current signal via the current sensor remains off, the decoder or encoder controls a switching element arranged in parallel to actuate the consumer.
  • a current sensor can also be assigned to the second switching element, which should take over its function in the event of failure of the first switching element. Also does not deliver the second current sensor Current signal, it can be assumed that it is not the multiplex circuit or the associated switching elements that are faulty, but that the consumer itself has failed.
  • an error display can be generated in the vehicle, which differentiates whether the multiplex circuit itself or the associated switching elements are defective or whether the consumer has failed.
  • the fault can be stored in a diagnostic unit in order to be read out at the next workshop service and corrected accordingly.
  • a decoder / encoder unit 10 of a multiplex circuit is controlled by a multiplex cable 12 and thus receives signals which make the decoder / encoder unit 10 respond depending on the signal configuration.
  • the multiplex signal is continued on line 14 to the next de- / encoder unit.
  • the de- / encoder unit 10 supplies a signal to a first switching element 20 via a line 16, which leads to the first switching element 20 being switched on or off.
  • a current can flow from line 24 connected to the positive pole via line 26 and line 30 to consumer 32, which is connected to ground at 34.
  • a current sensor 38 detects the current flow and delivers a corresponding signal back to the decoder unit 10 via a line 42.
  • a second switching element 22 is provided, which is likewise operated by the de- / Encoder unit IC is controlled via a line 15.
  • the second switching element 22 is connected in parallel with a line 28 to the first switching element 20 and its line 15, so that the positive line 24 via the line 30 with the.
  • Consumer 32 can optionally be connected via line 26 and the first switching element 20 or via the line 28 and the second switching element 2.
  • the second switching element 22 can also be assigned a street sensor 36, which delivers its signal to the decoder / encoder unit 10 via a line 40.
  • the de- / encoder unit 10 may be one of the most, so that the load is supplied with power 32 'bei ⁇ the switching elements, the switching element 20 to drive and close. If the command for switching through goes to the switching element 20 via the line 16, but the current sensor 38 detects no current, the line 18 is activated in the de- / encoder in order to switch the switching element 22 through.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

Pour le circuit multiplex destiné à la commande d'amorçage d'un consommateur dans un véhicule automobile, il est prévu que les éléments de circuit (20, 22) amorcés par l'étage de décodage multiplex se trouvent en redondance.
PCT/EP1990/001912 1989-12-15 1990-10-26 Circuit multiplex pour au moins un consommateur dans un vehicule automobile WO1991008930A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893941382 DE3941382A1 (de) 1989-12-15 1989-12-15 Multiplexschaltung fuer mindestens einen verbraucher in einem kraftfahrzeuge
DEP3941382.9 1989-12-15

Publications (1)

Publication Number Publication Date
WO1991008930A1 true WO1991008930A1 (fr) 1991-06-27

Family

ID=6395491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/001912 WO1991008930A1 (fr) 1989-12-15 1990-10-26 Circuit multiplex pour au moins un consommateur dans un vehicule automobile

Country Status (2)

Country Link
DE (1) DE3941382A1 (fr)
WO (1) WO1991008930A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3303328B2 (ja) * 1992-03-23 2002-07-22 日産自動車株式会社 車両用通信装置
DE4213131C2 (de) * 1992-04-21 1995-11-30 Audi Ag Redundante Schalteranordnung
DE19609009A1 (de) * 1996-03-08 1997-09-11 Edag Eng & Design Ag Elektrisches Netz mit mehreren elektrischen Verbrauchern
DE19915630A1 (de) * 1999-04-07 2000-10-12 Volkswagen Ag Steuergerät, insbesondere für ein Kraftfahrzeug
DE102008044774A1 (de) * 2008-08-28 2009-10-15 Audi Ag Parallelschaltung aus einer pyrotechnischen Sicherung und einer weiteren Sicherung für ein Kraftfahrzeug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353412A1 (fr) * 1976-06-04 1977-12-30 Fiat Spa Dispositif de distribution d'energie electrique pour un vehicule a moteur
DE3115276A1 (de) * 1980-04-16 1982-06-09 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka "steuerung fuer eine vielzahl von endeinheiten bzw.-anschluessen
US4394761A (en) * 1981-04-16 1983-07-19 Honeywell Inc. Current switching technique
DE3209716A1 (de) * 1982-03-17 1983-09-29 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Regelsystem
FR2591777A1 (fr) * 1985-12-13 1987-06-19 Cimsa Sintra Reseau informatise de grande securite de fonctionnement et procede de commande utilisant un tel reseau
FR2626116A1 (fr) * 1988-01-19 1989-07-21 Renault Vehicules Ind Dispositif de distribution d'energie electrique

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2041592A (en) * 1979-02-06 1980-09-10 Standard Telephones Cables Ltd Electrical control system
DE3149142A1 (de) * 1981-12-11 1983-06-23 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Multiplex-verkabelungssystem fuer fahrzeuge
DE3318270C1 (de) * 1983-05-19 1984-08-02 Daimler-Benz Ag, 7000 Stuttgart Strommesssensor zur Funktionskontrolle elektrischer Verbraucher
ES8403794A1 (es) * 1983-06-01 1984-05-01 Automoviles Turismo S A Seat S Control y test automatico de los diversos conjuntos electricos y mecanicos del automovil.
DE3540599A1 (de) * 1985-11-15 1987-05-21 Porsche Ag Diagnosesystem fuer ein kraftfahrzeug
DE3541663A1 (de) * 1985-11-26 1987-05-27 Licentia Gmbh Schaltverstaerker fuer analoge nf-signale
DE3717253A1 (de) * 1986-05-26 1987-12-03 Hitachi Ltd Direkte parallelschaltung von abschaltbaren halbleiterelementen
FR2618276B1 (fr) * 1987-07-15 1994-04-29 Crouzet Sa Dispositif de commutation electronique.
DE3730468A1 (de) * 1987-09-08 1989-03-16 Bergmann Kabelwerke Ag Bordnetz fuer kraftfahrzeuge und verfahren zum betrieb des bordnetzes
DE3733623A1 (de) * 1987-10-05 1989-04-13 Bosch Gmbh Robert Einrichtung zur einstellung einer betriebskenngroesse einer brennkraftmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353412A1 (fr) * 1976-06-04 1977-12-30 Fiat Spa Dispositif de distribution d'energie electrique pour un vehicule a moteur
DE3115276A1 (de) * 1980-04-16 1982-06-09 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka "steuerung fuer eine vielzahl von endeinheiten bzw.-anschluessen
US4394761A (en) * 1981-04-16 1983-07-19 Honeywell Inc. Current switching technique
DE3209716A1 (de) * 1982-03-17 1983-09-29 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Regelsystem
FR2591777A1 (fr) * 1985-12-13 1987-06-19 Cimsa Sintra Reseau informatise de grande securite de fonctionnement et procede de commande utilisant un tel reseau
FR2626116A1 (fr) * 1988-01-19 1989-07-21 Renault Vehicules Ind Dispositif de distribution d'energie electrique

Also Published As

Publication number Publication date
DE3941382A1 (de) 1991-06-20

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