USRE33692E - Fault diagnosis system for electronic device on automobiles - Google Patents

Fault diagnosis system for electronic device on automobiles Download PDF

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Publication number
USRE33692E
USRE33692E US07/608,734 US60873490A USRE33692E US RE33692 E USRE33692 E US RE33692E US 60873490 A US60873490 A US 60873490A US RE33692 E USRE33692 E US RE33692E
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US
United States
Prior art keywords
tester
fault diagnosis
electronic devices
signal
side connector
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 - Lifetime
Application number
US07/608,734
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English (en)
Inventor
Shigeaki Hirano
Hirotoshi Maekawa
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.)
Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
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Publication of USRE33692E publication Critical patent/USRE33692E/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing

Definitions

  • the present invention relates to a fault diagnosis system which permits easy fault diagnosis of various automotive electronic devices.
  • fault diagnoses of electronic devices on automobiles have been conducted by connecting those devices to a tester via a pair of corresponding connectors which include a vehicle-side connector and a tester-side connector.
  • vehicle-side connector has a predetermined number of pins corresponding to the number of electronic devices and is connected to the electronic devices by a corresponding set of signal lines for transmitting therebetween signals representing the results of fault diagnosis of corresponding electronic devices and controlling signals from the tester.
  • the tester-side connector also has a corresponding number of pins and is connected to the tester by another set of signal lines for transmitting therebetween the control signals from the tester and signals from the vehicle-side connector for display.
  • FIG. 1 is a block diagram illustrating the configuration of a conventional fault diagnosis system.
  • respective signal lines 9, 10, 11 and 12 are connected to a vehicle-side connector 5 from electronic devices 1, 2, 3, 4 which are control units for controlling various types of systems mounted on an automobile.
  • a tester-side connector 6 which is connected to the tester 7 through signal lines 14, 15, 16 and 17 is connected to the vehicle-side connector 5. If a fault has occurred in any of the electronic devices 1 to 4, the result is diagnosed by the tester 7, and a code is displayed on a diplay 8 on the tester 7.
  • the electronic devices 1-4 are connected to each other as shown in FIG. 1.
  • the number of systems is increased or a signaling system undergoes a change, it is necessary to change the number of pins at the vehicle-side connector 5 and the tester-side connector 6 for each such occasion.
  • an object of the present invention is to provide a fault diagnosis system for automotive electronic devices which accommodates changes in the signaling system, allows the components of the system to be consolidated or added to, allows conventional-type testers to be used without modification, and also allows new types of testers to use the same connector, thereby overcoming the above-described drawbacks of the prior art.
  • a fault diagnosis system for comprising a plurality of electronic devices mounted on the automobiles having corresponding signal lines and outputting the results of their fault diagnosis according to an output signaling schemes, at least one control line connected to the electronic devices and transmitting a signal selecting the output signal scheme, a vehicle-side connector connected to the signal lines and the control line, and a plurality of testers adapted to designate the output signaling scheme and to display results of fault diagnosis transmitted from the respective electronic devices in accordance with the designated output signaling scheme, each of the testers having a tester-side connector to be selectively connected to the vehicle-side connector for linking the signal lines and the control line between the electronic devices and the testers.
  • signals representing the results of the fault diagnosis output from electronic devices on automobiles are converted from ON-OFF signals into serial signals by short-circuiting the control signal line to a grounding line inside the tester.
  • FIG. 1 is a block diagram of a conventional fault diagnostic tester
  • FIG. 2 is a block diagram illustrating the configuration of an embodiment of a fault diagnosis system for automotive electronic devices in accordance with the present invention.
  • FIG. 3 is a schematic view showing another embodiment of the connector.
  • FIG. 2 is a block diagram illustrating the configuration thereof.
  • electronic devices 1-4 such as control units, are mounted on a vehicle are respectively connected through the signal lines 9-12 to a vehicle-side fault diagnosis connector 25, in which signals representing the results of fault diagnosis are collected from the electronic devices 1-4.
  • the electronic devices 1-4 to be diagnosed themselves may be of a conventional design and are capable of outputting either ON-OFF signals or serial signals which have a higher speed than the ON-OFF signals. Many conventional automotive electronic devices generally have had function for outputting not only ON-OFF signals but also serial signals.
  • Each of the electronic devices 1-4 is connected to the vehicle-side diagnosis connector 25 through a common control line 20 and through the respective signal lines 9-12.
  • the control line 20 is connected to a connecting pin 21 mounted in the connector 25.
  • either one of two kinds of testers 7 and 29 can be utilized.
  • the tester 7 which is identical to that shown in FIG. 1 judges and displays the results of fault diagnosis by means of the ON-OFF signals just in the same manner as in the system shown in FIG. 1.
  • the tester 29 displays the results of fault diagnosis by means of serial signals having a higher speed that that of ON-OFF signals.
  • the tester 29 therefore is provided with a connector 28 having a connecting pin 33 to which a grounded line 32 is connected. The other end of the grounded line 32 is grounded within the tester 29.
  • the tester 29 is provided with a display 30 for displaying the results of the diagnosis through the use of the serial signals.
  • the tester 29 is also provided with signal lines 14-17 for connection to the connector 28 which is connectable to the vehicle-side connector 25.
  • the electronic devices 1-4 provide normal ON-OFF signals to the tester 7 through the signal lines 9-12, the connectors 25 and 28, and the signal lines 14-17.
  • control line 20 becomes grounded and each of the electronic devices 1-4 detect this. In response, each of the electronic devices 1-4 changes its signal supplying mode to provide serial signals rather than ON-OFF signals.
  • the results of fault diagnosis are normally output from the electronic devices 1-4 to the vehicle-side fault diagnosis connector 25. Consequently, the conventional-type tester 7 receives these results of fault diagnosis via the connector 6 and displays diagnosed faults on the display 31.
  • the control line 20 which directs the electronic devices to provide either ON-OFF signals or serial signals may be connected to the piston 13 of the terminal of the connector 6 as shown in FIG. 3.
  • the pin at the position 13 is made a spare pin, and does not lead to the tester 7, so that signals from the electronic devices 1-4 permit fault diagnosis using a conventional-type tester.
  • the devices 1-4 change over the type of signal used for fault diagnosis.
  • the pin connected to the control line 20 remains unconnected, i.e. does not have a corresponding pin in the connector 6 so that there is no connection thereof to the tester 7, it is possible to read ON-OFF signals even when the connector 6 is fitted with the tester 7, thereby allowing the function of the conventional-type tester 7 to be domonstrated.
  • the fault diagnosis system in accordance with the present invention for automotive electronic devices in which a common connector is installed at similar places or positions for each vehicle and signals from this connector are used, makes it possible to receive an ON-OFF signal in a state in which a connector of a diagnosis tester is not inserted into a vehicle-side fault diagnosis connector as well as making it possible to receive the contents of the totally different serial signal appearing at the vehicle-side fault diagnosis connector when the connector of the diagnosis tester is inserted even when the pins are the same. Therefore, even when the electronic devices are identical, two or more kinds of testers can be used, so that development of specialized use testers is no longer required. In addition, conventional testers can also be used via the same connector, and the costs required for testers in general can be reduced.
US07/608,734 1986-08-18 1990-11-05 Fault diagnosis system for electronic device on automobiles Expired - Lifetime USRE33692E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61-193120 1986-08-18
JP61193120A JPH07122659B2 (ja) 1986-08-18 1986-08-18 自動車用電子装置の故障診断システム

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US07/084,841 Reissue US4901025A (en) 1987-08-13 1987-08-13 Fault diagnosis system for electronic devices on automobiles

Publications (1)

Publication Number Publication Date
USRE33692E true USRE33692E (en) 1991-09-17

Family

ID=16302591

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/608,734 Expired - Lifetime USRE33692E (en) 1986-08-18 1990-11-05 Fault diagnosis system for electronic device on automobiles

Country Status (4)

Country Link
US (1) USRE33692E (ja)
JP (1) JPH07122659B2 (ja)
KR (1) KR900004372B1 (ja)
DE (1) DE3727549A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5170125A (en) * 1992-04-22 1992-12-08 Bates Jr James F Tester for the ignition module of a vehicle
US6204770B1 (en) 1998-06-11 2001-03-20 Echlin, Inc. Master automotive sensor tester
US6710470B2 (en) * 2000-09-21 2004-03-23 Robert Bosch Gmbh Device for the wireless transmission of a tripping signal for a restraint system
US20100152955A1 (en) * 2007-04-20 2010-06-17 Stefan Holzinger Data transmission assembly
US20140218065A1 (en) * 2013-02-04 2014-08-07 Hamilton Sundstrand Corporation Detecting early failures in printed wiring boards

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910002804B1 (ko) * 1987-02-27 1991-05-04 미쓰비시지도오샤 고교 가부시끼가이샤 자기진단용 다기능테스터
JPH0718780B2 (ja) * 1988-03-29 1995-03-06 富士重工業株式会社 車輌診断システム
JPH0776737B2 (ja) * 1988-10-21 1995-08-16 富士重工業株式会社 車輌診断システム
DE4032926A1 (de) * 1990-10-17 1992-04-23 Bosch Gmbh Robert Vorrichtung zum pruefen eines kraftfahrzeugtestsystems
DE29513552U1 (de) * 1995-08-23 1995-10-05 Kugel Gerhard Meßvorrichtung
DE19723831A1 (de) * 1997-06-06 1998-12-10 Eberspaecher J Gmbh & Co Diagnose-Vorrichtung zum Überprüfen eines Teilsystems eines Kraftfahrzeuges
DE19731283B4 (de) 1997-07-21 2018-07-26 Bayerische Motoren Werke Aktiengesellschaft Diagnoseprüfgerät für elektronische Steuergeräte in unterschiedlichen Kraftfahrzeugtypen
KR20030047063A (ko) * 2001-12-07 2003-06-18 현대자동차주식회사 전기 자동차의 진단 시스템
DE102004022543A1 (de) * 2004-05-05 2005-12-08 Robert Bosch Gmbh Verfahren und Vorrichtung zum Prüfen eines elektrischen Bauteils
CN104965137B (zh) * 2015-06-19 2018-02-06 上海斐讯数据通信技术有限公司 一种故障定位方法及系统、电子设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617870A (en) * 1969-08-01 1971-11-02 Bell & Howell Co Automobile connector apparatus for use with an electronic analyzer
US3890836A (en) * 1973-10-15 1975-06-24 Draf Tool Co Inc Automatic temperature control system analyzer
US4168527A (en) * 1978-02-17 1979-09-18 Winkler Dean A Analog and digital circuit tester
US4701867A (en) * 1983-09-08 1987-10-20 Vdo Adolf Schindling Ag Electrical testing device for a vehicle combination instrument

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7217322A (ja) * 1972-12-19 1974-06-21
DE2732222A1 (de) * 1977-07-16 1979-01-25 Bbc Brown Boveri & Cie Vorrichtung zum pruefen von elektrischen baugruppen und geraeten mit vielpoligen anschlussvorrichtungen
DE2918956A1 (de) * 1979-05-11 1980-11-20 Bosch Gmbh Robert Pruefeinrichtung fuer bauteile und funktionen von kraftfahrzeugen
IT8453816V0 (it) * 1984-09-13 1984-09-13 Fiat Auto Spa Dispositivo di controllo e diagnosi per apparecchiature elettriche ed elettromeccaniche installate a bordo di autoveicoli

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617870A (en) * 1969-08-01 1971-11-02 Bell & Howell Co Automobile connector apparatus for use with an electronic analyzer
US3890836A (en) * 1973-10-15 1975-06-24 Draf Tool Co Inc Automatic temperature control system analyzer
US4168527A (en) * 1978-02-17 1979-09-18 Winkler Dean A Analog and digital circuit tester
US4701867A (en) * 1983-09-08 1987-10-20 Vdo Adolf Schindling Ag Electrical testing device for a vehicle combination instrument

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5170125A (en) * 1992-04-22 1992-12-08 Bates Jr James F Tester for the ignition module of a vehicle
US6204770B1 (en) 1998-06-11 2001-03-20 Echlin, Inc. Master automotive sensor tester
US6710470B2 (en) * 2000-09-21 2004-03-23 Robert Bosch Gmbh Device for the wireless transmission of a tripping signal for a restraint system
US20100152955A1 (en) * 2007-04-20 2010-06-17 Stefan Holzinger Data transmission assembly
US8392051B2 (en) * 2007-04-20 2013-03-05 Continental Automotive Gmbh Data transmission assembly
US20140218065A1 (en) * 2013-02-04 2014-08-07 Hamilton Sundstrand Corporation Detecting early failures in printed wiring boards
US9551744B2 (en) * 2013-02-04 2017-01-24 Hamilton Sundstrand Corporation Detecting early failures in printed wiring boards

Also Published As

Publication number Publication date
JPH07122659B2 (ja) 1995-12-25
JPS6348476A (ja) 1988-03-01
KR900004372B1 (ko) 1990-06-23
KR890000891A (ko) 1989-03-17
DE3727549A1 (de) 1988-02-25
DE3727549C2 (ja) 1990-05-03

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