ES482672A1 - Detection of failure of consumers of electrical current - Google Patents

Detection of failure of consumers of electrical current

Info

Publication number
ES482672A1
ES482672A1 ES482672A ES482672A ES482672A1 ES 482672 A1 ES482672 A1 ES 482672A1 ES 482672 A ES482672 A ES 482672A ES 482672 A ES482672 A ES 482672A ES 482672 A1 ES482672 A1 ES 482672A1
Authority
ES
Spain
Prior art keywords
switch
failure
lamp
voltage
resistance
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
Application number
ES482672A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Electrical and Power SAS
Precision Mecanique Labinal SA
Original Assignee
Labinal SA
Precision Mecanique Labinal SA
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 Labinal SA, Precision Mecanique Labinal SA filed Critical Labinal SA
Publication of ES482672A1 publication Critical patent/ES482672A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R31/44—Testing lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Alarm Devices (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

To detect the failure of e.g. a lamp (2) supplied from a D.C. source (4) through a switch (3) controlled by a manually-operated member (5), a resistance (1) of much greater value than that of the lamp (2) is connected across the switch (3), and the voltage V1 across the resistance (1) is used for the required detection. If the lamp (2) goes open circuit, then when the switch (3) is non-conductive the voltage V1 is low instead of high, while if the lamp (2) is short circuited then when the switch (3) is conductive, due to the finite resistance of the switch (3), the voltage V1 is high instead of low. To ensure failure detection regardless of the condition of the control member (5), the switch (3) is caused cyclically to incurse momentarily into the opposite state from that dictated by the control member, so that either type of failure can always be detected appropriate clock pulses are supplied from a generator (6). The equipment is particularly suited to detecting the failure of lights on a motor vehicle.
ES482672A 1978-07-10 1979-07-09 Detection of failure of consumers of electrical current Expired ES482672A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7820514A FR2435725A1 (en) 1978-07-10 1978-07-10 IMPROVEMENTS ON DEVICES FOR DETECTING FAULTS OF ELECTRIC CONSUMERS

Publications (1)

Publication Number Publication Date
ES482672A1 true ES482672A1 (en) 1980-04-16

Family

ID=9210541

Family Applications (1)

Application Number Title Priority Date Filing Date
ES482672A Expired ES482672A1 (en) 1978-07-10 1979-07-09 Detection of failure of consumers of electrical current

Country Status (5)

Country Link
DE (1) DE2926717A1 (en)
ES (1) ES482672A1 (en)
FR (1) FR2435725A1 (en)
GB (1) GB2025101A (en)
IT (1) IT1122025B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517067A1 (en) * 1981-11-25 1983-05-27 Renault Vehicules Ind CONTROL, SAFETY AND DIAGNOSTIC DEVICE FOR VEHICLE ELECTRIC CIRCUIT
GB9006091D0 (en) * 1990-03-17 1990-05-16 Eaton Corp Transducer fault test logic
FR2670902B1 (en) * 1990-12-21 1993-04-23 Siemens Automotive Sa DEVICE FOR DETECTION AND DISCRIMINATION OF FAULTS IN A LOAD ELECTRICAL SUPPLY CIRCUIT.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987424A (en) * 1974-04-22 1976-10-19 Stewart-Warner Corporation Bulb outage warning system
DE2602853A1 (en) * 1976-01-27 1977-07-28 Bosch Gmbh Robert CIRCUIT ARRANGEMENT FOR MONITORING ELECTRICAL CONSUMERS OF A MOTOR VEHICLE

Also Published As

Publication number Publication date
GB2025101A (en) 1980-01-16
IT1122025B (en) 1986-04-23
DE2926717A1 (en) 1980-01-24
FR2435725A1 (en) 1980-04-04
IT7924125A0 (en) 1979-07-05

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