FR2603111A1 - Automobile electrical circuit control unit - detects intermittent faults in circuitry and records location and chronological order of faults - Google Patents

Automobile electrical circuit control unit - detects intermittent faults in circuitry and records location and chronological order of faults

Info

Publication number
FR2603111A1
FR2603111A1 FR8611924A FR8611924A FR2603111A1 FR 2603111 A1 FR2603111 A1 FR 2603111A1 FR 8611924 A FR8611924 A FR 8611924A FR 8611924 A FR8611924 A FR 8611924A FR 2603111 A1 FR2603111 A1 FR 2603111A1
Authority
FR
France
Prior art keywords
faults
control unit
chronological order
unit
circuitry
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.)
Granted
Application number
FR8611924A
Other languages
French (fr)
Other versions
FR2603111B3 (en
Inventor
Andre Perrot
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.)
Muller et Cie SA
Original Assignee
Muller et Cie 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 Muller et Cie SA filed Critical Muller et Cie SA
Priority to FR8611924A priority Critical patent/FR2603111B3/en
Publication of FR2603111A1 publication Critical patent/FR2603111A1/en
Application granted granted Critical
Publication of FR2603111B3 publication Critical patent/FR2603111B3/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

The control unit has a number of basic control channels (A,B,--X) connected in parallel and each being associated with a circuit or electronic unit of the vehicle. Each channel has an input terminal (1) onto which a voltage reference signal is applied. A signal emanating from the circuit or the unit to be controlled is applied to a second input terminal (2). The control unit has a signal comparator (3) which detects variations characterising intermittent faults in the vehicles circuits or electronic units. An output interface unit(4) is connected to a memory (6) which records each fault as it occurs and an electronic unit (9) processes the fault signals detected and memorises the location and chronological order of the faults. ADVANTAGE - Enables location of intermittent faults and gives the time of fault occurrence.
FR8611924A 1986-08-21 1986-08-21 CONTROL DEVICE FOR ELECTRICAL ORGANS AND CIRCUITS OF A MOTOR VEHICLE Expired FR2603111B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8611924A FR2603111B3 (en) 1986-08-21 1986-08-21 CONTROL DEVICE FOR ELECTRICAL ORGANS AND CIRCUITS OF A MOTOR VEHICLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8611924A FR2603111B3 (en) 1986-08-21 1986-08-21 CONTROL DEVICE FOR ELECTRICAL ORGANS AND CIRCUITS OF A MOTOR VEHICLE

Publications (2)

Publication Number Publication Date
FR2603111A1 true FR2603111A1 (en) 1988-02-26
FR2603111B3 FR2603111B3 (en) 1988-12-23

Family

ID=9338417

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8611924A Expired FR2603111B3 (en) 1986-08-21 1986-08-21 CONTROL DEVICE FOR ELECTRICAL ORGANS AND CIRCUITS OF A MOTOR VEHICLE

Country Status (1)

Country Link
FR (1) FR2603111B3 (en)

Also Published As

Publication number Publication date
FR2603111B3 (en) 1988-12-23

Similar Documents

Publication Publication Date Title
MY120457A (en) Semiconductor integrated circuit device
GB1498719A (en) Electrical test system
HK1019930A1 (en) Assembly and method for testing integrated circuit devices
MY120458A (en) Encoded signal characteristic point recording apparatus.
EP0369716A3 (en) Amplifying circuit
EP0197768A3 (en) Digital control systems for electronic apparatus
EP0039122A3 (en) Apparatus and method for testing electrical systems of a vehicle
KR850000875A (en) Video component interconnector
FR2603111A1 (en) Automobile electrical circuit control unit - detects intermittent faults in circuitry and records location and chronological order of faults
EP0213453A3 (en) Noise reduction during testing of integrated circuit chips
US4000410A (en) Circuit arrangement for superposing starting conditions at an electrical operating means-simulator composed of RC-elements
EP0166575A3 (en) System for testing functional electronic circuits
DE10155847B4 (en) Method and circuit arrangement for diagnosing output stages in control units
KR970049834A (en) Presence detection system for integrated circuits on electrically conductive objects, especially on chip cards
KR900001808B1 (en) Input circuit
CA2108725A1 (en) Expansible High Speed Digital Multiplexer
SE437593B (en) FAILURE ELIMINATING CIRCUIT
FR2319229A1 (en) Overload protection circuit for motor vehicle electronic systems - has zener diode and capacitor in parallel with integrated circuit and following series resistor
WO2000028335A3 (en) Connection detection circuit apparatus and method
FR2655736B1 (en) VOLTAGE MEASURING DEVICE.
FR2296181A1 (en) Test system for diode matrices - using series of horizontal and vertical generators resistances and test circuits
ES2006014A6 (en) Device for checking the switching state of a commutator switchable between two switching positions
ES8607569A1 (en) Static diagnostic apparatus for ignition systems.
SU1404984A1 (en) Device for inspecting electric wiring
EP0709687A2 (en) An apparatus for testing the quality of the logic levels of a digital signal

Legal Events

Date Code Title Description
ST Notification of lapse