JPS6348476A - Fault diagnosing system for electronic equipment for automobile - Google Patents
Fault diagnosing system for electronic equipment for automobileInfo
- Publication number
- JPS6348476A JPS6348476A JP61193120A JP19312086A JPS6348476A JP S6348476 A JPS6348476 A JP S6348476A JP 61193120 A JP61193120 A JP 61193120A JP 19312086 A JP19312086 A JP 19312086A JP S6348476 A JPS6348476 A JP S6348476A
- Authority
- JP
- Japan
- Prior art keywords
- connector
- tester
- signal
- signals
- vehicle
- 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
Links
- 238000003745 diagnosis Methods 0.000 claims abstract description 33
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Tests Of Electronic Circuits (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、自動車に搭載されている各種電子装置の故
障診断を容易にする自動車用電子装置の故障診断システ
ムに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a failure diagnosis system for automobile electronic devices that facilitates failure diagnosis of various electronic devices installed in automobiles.
従来、自動車に搭載されている電子装置類の故。 Due to the electronic devices conventionally installed in automobiles.
障診断を行なうときは、いろいろなシステムを制御する
フントロールユニットから、故障診断を行った結果の信
号を車両側に、類似の場所または位置に故障診断用専用
コネクタを組付けて、このコネクタを経由してテスタに
接続し、故障診断を行なっていた。When diagnosing a fault, a special connector for fault diagnosis is installed in a similar location or position, and the signal from the fault diagnosis result is sent to the vehicle from the vehicle control unit that controls various systems. It was connected to a tester via the cable and used for fault diagnosis.
このため、搭載される電子装置類が増してくると、故障
診断用コネクタのビン数を増加し、接続できるシステム
数の増加に対応する必要があった。Therefore, as the number of installed electronic devices increases, it is necessary to increase the number of failure diagnosis connector bins to accommodate the increase in the number of systems that can be connected.
また、電子装置のシステムが変更になった場合にも、コ
ネクタからの信号が変更になり、その都度コネクタのピ
ン数を変更し、なおテスタ側のコネクタビンの接続を変
更する必要が生じた。Further, when the system of the electronic device is changed, the signals from the connector are changed, and it is necessary to change the number of pins of the connector and change the connection of the connector bin on the tester side each time.
この結果、長期的に見た場合、テスタを共通化して使用
することができず、システム変更ごとに専用テスタを開
発し、故障診断に対応する必要があった。そのため、テ
スタは車種別や年代別に異ったものを準備するなど無駄
になる要素が多かった。As a result, in the long term, it was not possible to use a common tester, and it was necessary to develop a dedicated tester for each system change to handle failure diagnosis. As a result, there were many elements that were wasted, such as preparing different testers for each car model and year.
次に、従来の故障診断テスタについて説明する。Next, a conventional failure diagnosis tester will be explained.
第２図は従来の故障診断システムの構成を示すブロック
図であ・る。この第２図において、車載されている各種
のシステムを制御するフントロールユニット１，２ｊ３
，４から車両側コネクタ５にそれぞれの信号線が接続さ
れ、テスタ側コネクタ６を経由してオン−オフ信号はテ
スタ７へ接続され、コントロールユニット内で不具合が
発生したとき、その結果をテスタ７が診断し、テスタ７
上の表示部１１にコードを表示する。FIG. 2 is a block diagram showing the configuration of a conventional failure diagnosis system. In this Fig. 2, vehicle control units 1, 2j3 that control various systems mounted on the vehicle are shown.
, 4 are connected to the vehicle side connector 5, and the on-off signals are connected to the tester 7 via the tester side connector 6. When a problem occurs in the control unit, the result is sent to the tester 7. Diagnosed and tester 7
The code is displayed on the upper display section 11.
従来の故障診断システムは、フントロールユニット１〜
４とテスタ７を第２図のように接続されているので、シ
ステム数が増減したり、信号形態が変化した場合には、
その都度車両側コネクタ５、テスタ側コネクタ６のビン
数を変更しなければならず、またテスタ７も信号処理方
法まで端子毎に変更することが必要で、専用型になシ、
変更の都度新設し、再配置することが必要で、設備費が
高価になりやすいなどの問題点があった。The conventional fault diagnosis system is based on Huntroll unit 1~
4 and tester 7 are connected as shown in Figure 2, so if the number of systems increases or decreases or the signal form changes,
The number of bins for the vehicle-side connector 5 and tester-side connector 6 must be changed each time, and the signal processing method of the tester 7 must also be changed for each terminal.
Each time a change is made, it is necessary to install a new one and relocate it, which leads to problems such as high equipment costs.
この発明は、かかる問題点を解決するためになされたも
ので、信号の形態を変更することができ、故障診断のシ
ステムの内容を充実、増加することができるとともに、
従来型のテスタもそのまま使用でき、かつ新型テスタも
同一コネクタで使用できる自動車用電子装置の故障診断
システムを得ることを目的とする。This invention was made to solve such problems, and it is possible to change the form of the signal, enrich and increase the contents of the fault diagnosis system, and
The purpose of the present invention is to obtain a failure diagnosis system for automotive electronic equipment that can be used with a conventional tester as is and with a new type tester using the same connector.
この発明に係る自動車用電子装置の故障診断システムは
、コネクタ内の特定のビンを制御し、制御、ｉｉ’を通
してコントロールユニットなどの車載用の電子装置から
テスタに出される信号をオン−オフ信号からシリアル信
号に変換して、同一ビンよυ２種類以上の信号を出すコ
ネクタを設けたものである。The failure diagnosis system for an automotive electronic device according to the present invention controls a specific bin in a connector, and converts a signal sent from an on-vehicle electronic device such as a control unit to a tester through a control unit, ii', from an on-off signal. It is equipped with a connector that converts it into a serial signal and outputs two or more types of signals from the same bin.
この発明においては、車載電子装置からコネクタを経由
して入ってくる特定ビンの信号レベルを、コネクタ挿入
時にテスタ内でショートすることにより、車載用の電子
装置の出力信号をオン−オフ信号からシリアル信号へ変
更する。In this invention, by short-circuiting the signal level of a specific bin that comes from the in-vehicle electronic device via the connector in the tester when the connector is inserted, the output signal of the in-vehicle electronic device is converted from an on-off signal to a serial signal. Change to signal.
以下、この発明の自動車用電子装置の故障診断システム
の実施例を図について説明する。第１図はその一実施例
の構成を示すブロック図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a failure diagnosis system for automotive electronic equipment according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of one embodiment.
この第１図において、２１，２２，２３．２４は自動車
に搭載されたコントロールユニットなどの電子装置、２
５はこれらの電子装置２１〜２４から故障診断した結果
のオン−オフ信号を集めている車載側故障診断用コネク
タであり、第２図の車両側コネクタに対応している。２
６は診断用テスタに接続するコネクタ、２７は従来型の
オン−オフ信号のみで故障診断結果を表示するテスタで
ある。In this Figure 1, 21, 22, 23, and 24 are electronic devices such as a control unit mounted on a car, and 2
Reference numeral 5 denotes a vehicle-mounted failure diagnosis connector that collects on-off signals as a result of failure diagnosis from these electronic devices 21 to 24, and corresponds to the vehicle-side connector in FIG. 2
6 is a connector connected to a diagnostic tester, and 27 is a conventional tester that displays failure diagnosis results using only on-off signals.
このテスタ２７にコネクタ２６を接続するようになって
おシ、テスタ２７に診断結果を表示するテスタ表示部３
１が設けられている。また、シリアル信号を用いて故障
診断するテスタ２９にコネクタ２８が配線３２を介して
接続されている。この配１ｓ３２はコネクタ２８かも制
御線をテスタ２９に導入するための配線である。このテ
スタ２９には、診断結果を表示するための表示部３０が
設けられている。The connector 26 is connected to the tester 27, and the tester display section 3 displays the diagnostic results on the tester 27.
1 is provided. Further, the connector 28 is connected via a wiring 32 to a tester 29 that diagnoses a failure using a serial signal. This wiring 1s32 is a wiring for introducing the connector 28 and the control line to the tester 29. This tester 29 is provided with a display section 30 for displaying diagnostic results.
また、上記各電子装置２１〜２４と車載用故障診断用コ
ネクタ２５とが制御線２０で接続されている。この制御
！２０は車載されている各電子装置２１〜２４から出る
信号をオン−オフ信号からシリアル信号に変更するため
の制御線であり、テスタ２９は制御信号を含めたシリア
ル信号により故障診断するテスタである。Further, each of the electronic devices 21 to 24 and an on-vehicle failure diagnosis connector 25 are connected by a control line 20. This control! Reference numeral 20 denotes a control line for changing the signals output from each electronic device 21 to 24 mounted on the vehicle from an on-off signal to a serial signal, and a tester 29 is a tester for diagnosing failures using serial signals including control signals. .
次に、この発明の動作について説明する。電子装置２１
〜２４よシ車載側用故障診断用コネクタ２５には、常時
故障診断結果をオン−オフ信号で出力しておく。その結
果、従来型のテスタ２７は、コネクタ２６を経由して受
信し、判定結果を表示部３１に表示する。Next, the operation of this invention will be explained. Electronic device 21
~24 The failure diagnosis result is always output as an on-off signal to the in-vehicle failure diagnosis connector 25. As a result, the conventional tester 27 receives the signal via the connector 26 and displays the determination result on the display unit 31.
このとき、電子装置から出る信号をオン−オフよりシリ
アル信号へ切り換える制御線２ｏは、コネクタ２６の端
子の位置１３に対応して配線し、位置１３のビンは空ビ
ンとして、テスタ２７へは導入せず、したかつて、電子
装置２１〜２４の信号は従来型テスタを用いて故障診断
することができる。At this time, the control line 2o, which switches the signal output from the electronic device from on/off to a serial signal, is wired corresponding to the terminal position 13 of the connector 26, and the bottle at position 13 is set as an empty bottle and is not introduced into the tester 27. Once the signals of the electronic devices 21-24 have been used, the signals of the electronic devices 21-24 can be fault-diagnosed using a conventional tester.
また、位置１３のビンを空ビンまたは非接続状態におく
ことにより、テスタ２７を接続しなくても、車載用故障
診断用コネクタ２５の端子を通常の電圧計式テスタで測
定することによシ、故障診断することもできるという特
徴も出てくる。In addition, by leaving the bin at position 13 empty or in an unconnected state, the terminals of the in-vehicle fault diagnosis connector 25 can be measured with a normal voltmeter tester without connecting the tester 27. It also has the feature of being able to diagnose failures.
次に、シリアル信号を用いて故障診断をする際、車載用
故障診断用コネクタ２５を用いて、シリアル信号のテス
タ２９を動作させる場合について説明する。Next, a case will be described in which the serial signal tester 29 is operated using the in-vehicle failure diagnosis connector 25 when diagnosing a failure using a serial signal.
オン−オフ信号からシリアル信号へ切υ換えるための制
御線１０を車載用故障診断用コネクタ２５に出力してお
く。この制御線をテスタ側のコネクタ２８、テスタ側の
配Ｍ３２を経由してシリアル信号用のテスタ２９に導入
し、車載用故障診断用コネクタ２５とコネクタ２８が嵌
合したときに配線３２をテスタ２９内でグランドライン
にショートして、制御線２０の電圧レベルを変え、電子
装置２１〜２４から出てくる信号をオン−オフ信号から
シリアル信号に変える。A control line 10 for switching from an on-off signal to a serial signal is outputted to an in-vehicle fault diagnosis connector 25. This control line is introduced into the tester 29 for serial signals via the connector 28 on the tester side and the wiring M32 on the tester side. The voltage level of the control line 20 is changed by shorting the control line 20 to the ground line, thereby changing the signals coming from the electronic devices 21-24 from on-off signals to serial signals.
すなわち、従来型のテスタ２７と、シリアル信号用−の
テスタ２９との識別を、コネクタの１ピンの電圧レベル
を変化することによシ、電子装置に判断させて、信号の
種類を切り換える。That is, the conventional tester 27 and the serial signal tester 29 are discriminated by changing the voltage level of pin 1 of the connector, and the electronic device is used to switch the type of signal.
従来型のテスタ２７ｔ−使う時には、コネクタ２６のビ
ンのうち制御線２０に接続されるビンを空ビンにしてテ
スタ２６に接続することを中止すれば、嵌合状態でもオ
ン−オフ信号を読み取シ、従来型テスタ２７の機能を発
揮することが可能となる。When using the conventional tester 27t, if you empty the bin connected to the control line 20 among the bins of the connector 26 and stop connecting it to the tester 26, the system can read the on-off signal even in the mated state. , it becomes possible to perform the functions of the conventional tester 27.
上記の説明は特定の一端子の電圧レベルを変化させるこ
とにより、電子装置から出る信号方式を変更して、２種
類以上の伝送が可能になるような自動車用故障診断シス
テムについて述べたものであシ、その信号内容もオン−
オフとシリアル伝送を示したものだが、特定のビンを２
本以上にすることによシ、現状以上の多数の信号システ
ムを切り換えることも可能となシ、より広い範囲への切
換ができて、前記実施例と同等の効果を奏することにな
る。The above explanation describes an automotive fault diagnosis system that changes the signal format output from an electronic device by changing the voltage level of a specific terminal, making it possible to transmit two or more types of signals. Yes, the signal content is also on.
This shows off and serial transmission, but if you set a specific bin to 2
By using more than one signal, it is possible to switch over a larger number of signal systems than the current number, and it is possible to switch over a wider range, resulting in the same effects as in the embodiments described above.
この発明は以上説明したとおシ、車載用の電子装置の故
障診断を行うときに車両毎に類似の場所または位置に共
通のコネクタを組付け、このコネクタからの信号を利用
するシステムにおいて、車載用故障診断用コネクタに診
断用のテスタのコネクタを挿入しない状態におけるオン
−オフ信号と、診断用のテスタのコネクタを挿入したと
きに車載用故障診断用コネクタに現われる信号の内容が
同一ピンであっても全く異種のシリアル信号を受信でき
るようにしたので、電子装置が同一であっても、２種類
以上のテスタが使用できるようになり、専用テスタの開
発が不要になシ、従来のテスタも新型テスタも同一コネ
クタを経由して使えるようにな）、テスタ全般に要する
費用を安価にすることができる。As described above, the present invention provides a system in which a common connector is assembled in a similar place or position for each vehicle and signals from this connector are used when diagnosing a failure of an in-vehicle electronic device. The on-off signal when the diagnostic tester connector is not inserted into the fault diagnostic connector and the signal that appears on the automotive fault diagnostic connector when the diagnostic tester connector is inserted are the same pins. Since it has become possible to receive completely different types of serial signals, it is now possible to use two or more types of testers even if the electronic equipment is the same, eliminating the need to develop a dedicated tester, and even replacing conventional testers with new models. Testers can also be used via the same connector), making it possible to reduce the overall cost of testers.
第１図はこの発明の自動車用電子装置の故障診断システ
ムの一実施例の構成を示すブロック図、第２図は従来の
故障診断テスタのプＨツク図である。
２０・・・制御線、２１〜２４・・・電子装置、２５・
・・車載用故障診断用コネクタ、２６．２８・・・コネ
クタ、２７．２９・・・テスタ、３２・・・配線。
代理人 大 岩 増 雄
第１囚
第２因FIG. 1 is a block diagram showing the configuration of an embodiment of a failure diagnosis system for an automobile electronic device according to the present invention, and FIG. 2 is a block diagram of a conventional failure diagnosis tester. 20... Control line, 21-24... Electronic device, 25.
...In-vehicle failure diagnosis connector, 26.28...Connector, 27.29...Tester, 32...Wiring. Agent Masuo Oiwa 1st prisoner 2nd cause
Claims (1)
車載用の電子装置、この電子装置から出力される故障診
断結果のオン−オフ信号を第１のコネクタを経由して受
信して判定結果を表示する第１のテスタ、上記各電子装
置から出力される上記オン−オフ信号よりシリアル信号
に切り換えかつ上記第１のコネクタの所定の端子位置に
対応して配線して第１のテスタへこのシリアル信号の導
入を阻止する制御線、上記シリアル信号を用いて上記各
電子装置の故障診断時にこのシリアル信号を上記制御線
を介して導入する第２のコネクタ、上記故障診断時に上
記制御線に接続する第３のコネクタを介して上記シリア
ル信号を入力しかつ上記第２および第３のコネクタを接
続したとき上記制御線の電圧レベルを変えて上記各電子
装置から出力するオン−オフ信号を各電子装置にシリア
ル信号に変えさせて故障診断を行う第２のテスタを備え
てなる自動車用電子装置の故障診断システム。A plurality of in-vehicle electronic devices that constantly output failure diagnosis results as on-off signals, receiving the on-off signals of the failure diagnosis results output from the electronic devices via a first connector and outputting the determination results. The first tester to display the serial signal is switched from the on-off signal outputted from each of the electronic devices to a serial signal, and is wired to a predetermined terminal position of the first connector to send the serial signal to the first tester. a control line that prevents the introduction of the signal; a second connector that introduces the serial signal via the control line when diagnosing the failure of each of the electronic devices using the serial signal; and a second connector that connects to the control line during the failure diagnosis. When the serial signal is input through the third connector and the second and third connectors are connected, an on-off signal is output from each electronic device by changing the voltage level of the control line. A fault diagnosis system for automotive electronic equipment, comprising a second tester that performs fault diagnosis by converting the signal into a serial signal.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61193120A JPH07122659B2 (en) | 1986-08-18 | 1986-08-18 | Failure diagnosis system for automobile electronic devices |
| KR1019870006372A KR900004372B1 (en) | 1986-08-18 | 1987-06-23 | Checking machine in automobile |
| DE19873727549 DE3727549A1 (en) | 1986-08-18 | 1987-08-18 | Fault diagnosis system for electronic devices in motor vehicles |
| US07/608,734 USRE33692E (en) | 1986-08-18 | 1990-11-05 | Fault diagnosis system for electronic device on automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61193120A JPH07122659B2 (en) | 1986-08-18 | 1986-08-18 | Failure diagnosis system for automobile electronic devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6348476A true JPS6348476A (en) | 1988-03-01 |
| JPH07122659B2 JPH07122659B2 (en) | 1995-12-25 |
Family
ID=16302591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61193120A Expired - Fee Related JPH07122659B2 (en) | 1986-08-18 | 1986-08-18 | Failure diagnosis system for automobile electronic devices |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | USRE33692E (en) |
| JP (1) | JPH07122659B2 (en) |
| KR (1) | KR900004372B1 (en) |
| DE (1) | DE3727549A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01247741A (en) * | 1988-03-29 | 1989-10-03 | Fuji Heavy Ind Ltd | Diagnosis system for vehicle |
| CN104965137A (en) * | 2015-06-19 | 2015-10-07 | 上海斐讯数据通信技术有限公司 | Fault positioning method and system, electronic equipment |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910002804B1 (en) * | 1987-02-27 | 1991-05-04 | 미쓰비시지도오샤 고교 가부시끼가이샤 | Multi-function testor for self-diagnosis |
| JPH0776737B2 (en) * | 1988-10-21 | 1995-08-16 | 富士重工業株式会社 | Vehicle diagnostic system |
| DE4032926A1 (en) * | 1990-10-17 | 1992-04-23 | Bosch Gmbh Robert | DEVICE FOR TESTING A MOTOR VEHICLE TEST SYSTEM |
| US5170125A (en) * | 1992-04-22 | 1992-12-08 | Bates Jr James F | Tester for the ignition module of a vehicle |
| DE29513552U1 (en) * | 1995-08-23 | 1995-10-05 | Kugel, Gerhard, 76307 Karlsbad | Measuring device |
| DE19723831A1 (en) * | 1997-06-06 | 1998-12-10 | Eberspaecher J Gmbh & Co | Diagnostic device for checking a subsystem of a motor vehicle |
| DE19731283B4 (en) | 1997-07-21 | 2018-07-26 | Bayerische Motoren Werke Aktiengesellschaft | Diagnostic test device for electronic control units in different motor vehicle types |
| US6204770B1 (en) | 1998-06-11 | 2001-03-20 | Echlin, Inc. | Master automotive sensor tester |
| DE10046700C2 (en) * | 2000-09-21 | 2003-03-20 | Bosch Gmbh Robert | Device for the wireless transmission of a trigger signal for a restraint system |
| KR20030047063A (en) * | 2001-12-07 | 2003-06-18 | 현대자동차주식회사 | System for diagnosis on electric vehicle |
| DE102004022543A1 (en) * | 2004-05-05 | 2005-12-08 | Robert Bosch Gmbh | Electrical component testing method used in vehicle manufacture, subjecting component under test to voltage and measuring current through data line |
| DE102007018830A1 (en) * | 2007-04-20 | 2008-12-24 | Continental Automotive Gmbh | Arrangement for data transmission |
| US9551744B2 (en) * | 2013-02-04 | 2017-01-24 | Hamilton Sundstrand Corporation | Detecting early failures in printed wiring boards |
Family Cites Families (8)
| 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 |
| NL7217322A (en) * | 1972-12-19 | 1974-06-21 | ||
| US3890836A (en) * | 1973-10-15 | 1975-06-24 | Draf Tool Co Inc | Automatic temperature control system analyzer |
| DE2732222A1 (en) * | 1977-07-16 | 1979-01-25 | Bbc Brown Boveri & Cie | Tester for electrical assemblies and appliances - has cable with different connecting devices at ends which can be connected to testing and tested devices |
| US4168527A (en) * | 1978-02-17 | 1979-09-18 | Winkler Dean A | Analog and digital circuit tester |
| DE2918956A1 (en) * | 1979-05-11 | 1980-11-20 | Bosch Gmbh Robert | Vehicle component and functional test expandable computer unit - has ROM module with additional stackable plug-in modules |
| DE3332386A1 (en) * | 1983-09-08 | 1985-03-21 | Vdo Adolf Schindling Ag, 6000 Frankfurt | ELECTRICAL TESTING DEVICE OF A VEHICLE COMBINATION INSTRUMENT |
| IT8453816V0 (en) * | 1984-09-13 | 1984-09-13 | Fiat Auto Spa | CONTROL AND DIAGNOSIS DEVICE FOR ELECTRICAL AND ELECTROMECHANICAL EQUIPMENT INSTALLED ON BOARD MOTOR VEHICLES |
-
1986
- 1986-08-18 JP JP61193120A patent/JPH07122659B2/en not_active Expired - Fee Related
-
1987
- 1987-06-23 KR KR1019870006372A patent/KR900004372B1/en not_active IP Right Cessation
- 1987-08-18 DE DE19873727549 patent/DE3727549A1/en active Granted
-
1990
- 1990-11-05 US US07/608,734 patent/USRE33692E/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01247741A (en) * | 1988-03-29 | 1989-10-03 | Fuji Heavy Ind Ltd | Diagnosis system for vehicle |
| JPH0718780B2 (en) * | 1988-03-29 | 1995-03-06 | 富士重工業株式会社 | Vehicle diagnostic system |
| CN104965137A (en) * | 2015-06-19 | 2015-10-07 | 上海斐讯数据通信技术有限公司 | Fault positioning method and system, electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3727549C2 (en) | 1990-05-03 |
| USRE33692E (en) | 1991-09-17 |
| KR900004372B1 (en) | 1990-06-23 |
| JPH07122659B2 (en) | 1995-12-25 |
| DE3727549A1 (en) | 1988-02-25 |
| KR890000891A (en) | 1989-03-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |