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KR900004372B1 - Fault diagnosis system of automotive electronics - Google Patents

Fault diagnosis system of automotive electronics Download PDF

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Publication number
KR900004372B1
KR900004372B1 KR1019870006372A KR870006372A KR900004372B1 KR 900004372 B1 KR900004372 B1 KR 900004372B1 KR 1019870006372 A KR1019870006372 A KR 1019870006372A KR 870006372 A KR870006372 A KR 870006372A KR 900004372 B1 KR900004372 B1 KR 900004372B1
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signal
tester
connector
electronic device
fault diagnosis
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KR890000891A (en
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시게아끼 히라노
히로도시 마에가와
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미쓰비시전기 주식회사
시끼모리야
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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 OR CALCULATING; 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

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  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (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)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

내용 없음.No content.

Description

자동차용 전자장치의 고장진단 시스템Fault diagnosis system of automotive electronics

제 1 도는 이 발명의 자동차용 전자장치의 고장진단 시스템의 한 실시예의 구성을 표시한 블럭도.1 is a block diagram showing the configuration of one embodiment of a failure diagnosis system for an electronic device for a vehicle according to the present invention;

제 2 도는 종래의 고장진단 테스터의 블럭도.2 is a block diagram of a conventional troubleshooting tester.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

20 : 제어선 21∼24 : 전자장치20: control line 21-24: electronic device

25 : 고장진단용 코넥터 26,28 : 코넥터25: trouble diagnosis connector 26, 28 connector

27,29 : 테스터 32 : 배선27,29: tester 32: wiring

이 발명은 자동차에 탑재되어 있는 각종 전자장치의 고장진단을 용이하게 하는 자동차용 전자장치의 고장진단 시스템에 관한 것이다.The present invention relates to a failure diagnosis system for an electronic device for a vehicle that facilitates failure diagnosis of various electronic devices mounted on an automobile.

종래에 있어서 자동차에 탑재되어 있는 전자장치를 고장진단 할 때에는, 여러가지 시스템을 제어하는 콘트롤 유니트에서 고장진단을 한 결과의 신호를 차량측에, 유사장소 또는 위치에 고장진단용 전용 코넥터를 맞붙히고 이 코넥터를 경유하여 테스터에 접속시켜 고장진만을 하였던 것이다. 이 때문에 탑재되는 전자장치류가 증가하게 되면 고장진단용 코넥터의 핀(pin)의 숫자를 증가시켜 접속 할 수 있는 시스템의 숫자의증가에 대응할 필요가 있었다.In the past, when an electronic device mounted in a vehicle is diagnosed, a signal of the result of the diagnosis in the control unit controlling various systems is attached to the vehicle side and a dedicated connector for diagnosis at a similar place or location is attached. Connected to the tester via the only failed. Therefore, as the number of electronic devices mounted increases, it is necessary to increase the number of pins of the fault diagnosis connector and to cope with the increase in the number of systems that can be connected.

또 전자장치의 시스템이 변경되었을 경우에도 코넥터에서의 신호가 변경하게 되고, 그 때마다 코넥터의 핀수를 변경하여 테스터측의 코넥터핀이 접속을 변경 할 필요가 있었다. 이 결과, 장기적으로 보았을 때,테스터를 공통화하여 사용 할 수 없으며 시스템을 변경 할 때마다 전용 테스터를 개발하여 고장진단에 대응할 필요가 있었다.In addition, when the system of the electronic device was changed, the signal at the connector changed, and the connector pin on the tester side had to be changed every time the pin number of the connector changed. As a result, in the long term, the testers cannot be used in common, and each time the system was changed, it was necessary to develop a dedicated tester to cope with the failure diagnosis.

이 때문에 테스터는 차종별 또는 연도별로 다른 것을 준비하는 등 쓸모가 없어지는 요소가 많았다.Because of this, the tester had many factors that became useless, such as preparing different things by type or year.

다음에, 종래의 고장진단 시스템에 관하여 설명 한다.Next, a conventional failure diagnosis system will be described.

제 2 도는 종래의 고장진단 시스템의 구성을 표시한 블럭도이다. 이 제 2 도에 있어서, 자동차에 탑재된 각종의 시스템을 제어하는 콘트롤 유니트 1.2.3.4.에 차량측 코넥터(5)에 각 신호선이 접속되고, 테스터측 코넥터(6)를 경유하여 온-오프 신호는 테스터(7)에 접속되며 콘트롤 유니트 내에서 불합리성이 발생 하였을때, 그 결과를 테스터(7)가 진단하여 테스터(7)위의 표시부(11)에 그 정보를 표시한다.2 is a block diagram showing the configuration of a conventional failure diagnosis system. In FIG. 2, each signal line is connected to the vehicle side connector 5 in the control unit 1.2.3.4. For controlling various systems mounted on the vehicle, and the on-off signal is passed through the tester side connector 6. Is connected to the tester 7 and, when irrationality occurs in the control unit, the tester 7 diagnoses the result and displays the information on the display unit 11 on the tester 7.

종래의 고장진단 시스템은 콘트롤 유니트(1)∼(4)와 테스터(7)가 제 2 도와 같이 접속되어 있으므로 시스템수가 증감하거나 신호형태가 변화한 경우에는 그 때마다 차량측 코넥터(5), 테스터측 코넥터(6)의 핀의수를 변경하지 않으면 안되며 또 테스터(7)도 신호처리 방법까지 단자마다 변경 할 필요가 있어 전용형(專用型)이 되며 변경 할 때마다 신설하여 재배치 할 필요가 있어 설비비가 고가로 되는 문제점이 있었다.In the conventional failure diagnosis system, the control unit (1) to (4) and the tester (7) are connected together with the second diagram so that when the number of systems increases or decreases, the vehicle connector (5) and the tester are changed. The number of pins of the side connector 6 must be changed, and the tester 7 also needs to be changed for each terminal up to the signal processing method, so that it becomes a dedicated type. There was a problem that the equipment cost is expensive.

이 발명은 이러한 문제점을 해결하기 위해 발명된 것으로서, 신호의 형태를 변경 할 수 있으며 고장진단의 시스템의 내용을 충실하게 증가 할 수 있음과 동시에 종래형의 테스터도 그대로 사용 할 수 있고 또 신형테스터도 동일 코넥터로 사용 할 수 있는 자동차용 전자장치의 고장진단 시스템을 얻는데 그 목적이 있다.The present invention has been invented to solve these problems, and it is possible to change the form of the signal, to faithfully increase the contents of the system for diagnosis of failure, and to use the conventional tester as it is. The purpose is to obtain a system for diagnosing failures of automotive electronics that can be used with the same connector.

이 발명의 자동차용 전자장치의 고장진단 시스템을 코넥터내의 특정의 핀을 제어하여 제어선을 통해 콘트롤 유니트등의 전자장치에서 테스터로 나온 신호를 온-오프 신호에서 시리얼 신호로 변환시켜 동일 핀에서 두 종류 이상의 신호를 나오게 하는 코넥터를 설치한 것이다.The fault diagnosis system of the automotive electronic device of the present invention controls a specific pin in the connector and converts a signal from the tester from an electronic device such as a control unit to an serial signal through a control line to convert the signal from the on-off signal to a serial signal. It is a connector that makes more than one kind of signal.

이 발명은 전자장치에서 코넥터를 경유하여 들어 오는 특정핀이 신호레벨을 코넥터 삽입시에 테스터 내에서 쇼트(short)시킴으로서 전자장치의 출력신호를 온-오프 신호에서 시리얼 신호로 변경시킨다.The present invention changes the output signal of the electronic device from an on-off signal to a serial signal by shortening a signal level in the tester upon insertion of the connector by a specific pin coming in through the connector in the electronic device.

이 발명의 자동차용 전자장치의 고장진단 시스템의 실시예를 도면에 의하여 설명한다. 제 1 도는 그 한실시예의 구성을 도시한 블럭도인데, 이 제 1 도에 있어서 21,22,23,24는 자동차에 탑재된 콘트롤 유니트등의 전자장치25는 이 전자장치(21)∼(24)에서 고장진단한 결과의 온-오프 신호를 모으고 있는 고장진단용 코넥터이며 제 2 도의 차량측 코넥터와 대응되어 있다. 26은 진단용 테스터에 접속하는 코넥터.27은 종래형온-오프 신호만으로 고장진단 결과를 표시하는 테스터이다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a failure diagnosis system for an electronic device for a vehicle of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of one embodiment. In FIG. 1, 21, 22, 23, and 24 are electronic devices such as a control unit mounted on an automobile. The fault diagnosis connector collects the on-off signal of the fault diagnosis result, and corresponds to the vehicle side connector of FIG. 26 is a connector for connecting to a diagnostic tester. 27 is a tester for displaying a result of a diagnosis by using only a conventional on-off signal.

이 테스터(27)에 코넥터(26)를 접속 시키도록 되어 있는데, 테스터(27)에 진단결과를 표시하는 테스터 표시부(31)가 설치되어 있다. 또 시리얼 신호를 사용하여 고장진단 하는 테스터(29)에 코덱터(28)가 배선(32)을 통하여 접속되어 있다.The connector 26 is connected to the tester 27. The tester 27 is provided with a tester display unit 31 for displaying a diagnosis result. The codec 28 is connected via a wiring 32 to a tester 29 for diagnosing failure using a serial signal.

이 배선(32)은 코넥터(28)에서 제어선을 테스터(29)에 도입하기 위한 배선이다.This wiring 32 is wiring for introducing a control line into the tester 29 in the connector 28.

이 테스터(29)에는 진단결과를 표시하기 위한 표시부(30)가 설치되어 있다. 또 상기 각 전자장치(21)∼(24)와 고장진단용 코덱터(25)가 제어선(20)으로 접속되어 있다. 이 제어선(20)은 자동차에 탑재되어 있는 각 전자장치(21)∼(24)에서 나오는 신호를 온-오프 신호에서 시리얼 신호로 변경시키기 위한 제어선이며, 테스터(29)는 제어신호를 포함한 시리얼 신호에 의하여 고장진단하는 테스터이다.The tester 29 is provided with a display unit 30 for displaying a diagnosis result. Each of the electronic devices 21 to 24 and the fault diagnosis codec 25 are connected by a control line 20. The control line 20 is a control line for changing a signal from each of the electronic devices 21 to 24 mounted in the vehicle from an on-off signal to a serial signal, and the tester 29 includes a control signal. This is a tester for troubleshooting due to serial signals.

다음에 이 발명의 동작에 대하여 설명한다. 전자장치(21)∼(24)에서 고장진단용 코넥터(25)에는 항상 고장진단 결과를 온-오프 신호로 출력시킨다. 그 결과, 종래형의 테스터(27)는 코넥터(26)을 경유하여 수신하고 판정결과를 표시부(31)에 표시한다.Next, the operation of the present invention will be described. The fault diagnosis connector 25 in the electronic devices 21 to 24 always outputs the fault diagnosis result as an on-off signal. As a result, the conventional tester 27 receives via the connector 26 and displays the determination result on the display unit 31.

이때, 전자장치에서 나오는 신호를 온-오프에서 시리얼 신호로 전환시키는 제어선(20)은 코넥터(6)의 단자의 위치(13)에 대응되게 배선하며 위치(13)의 핀은 빈핀으로서, 테스터(27)에는 도입되지 않으며 따라서전자장치(21)∼(24)의 신호는 종래형 테스터를 사용하여 고장진단 할 수 있는 것이다.At this time, the control line 20 for converting the signal from the electronic device from the on-off to the serial signal is wired so as to correspond to the position 13 of the terminal of the connector 6 and the pin of the position 13 is a blank pin. The signal of the electronic apparatuses 21 to 24 can therefore be diagnosed by using a conventional tester.

또 위치(l3)의 핀을 빈핀 또는 비접속상태로 둠으로써 테스터(27)를 접속시키지 않아도 고장진단용 코넥터(25)의 단자를 통상의 전압계식테스터로 측정함으로서 고장진단 할 수 있는 특징도 나올 수 있다.In addition, by leaving the pin at position l3 empty or unconnected, it is possible to diagnose the fault by measuring the terminal of the fault diagnosis connector 25 with an ordinary voltmeter tester without connecting the tester 27. have.

다음에, 시리얼 신호를 사용하여 고장진만 할 때 고장진단용 코덱터(25)를 사용하여 시리얼 신호의 테스터(29)를 동작시키는 경우에 대하여 설명한다.Next, a description will be given of the case where the serial signal tester 29 is operated by using the diagnostic codec 25 when the serial signal is broken.

온-오프 신호에서 시리얼 신호로 전환시키기 위한 제어선(10)을 고장진단용 코넥터(25)에 출력시킨다.The control line 10 for switching from the on-off signal to the serial signal is output to the failure diagnosis connector 25.

이 제어선을 테스터측의 코넥터(28), 테스터측 배선(32)을 경유하여 시리얼 신호용 테스터(29)에 도입하고 고장진단용 코넥터(25)와 코넥터(28)가 끼워맞추어졌을 때 배선(32)을 테스터(29)내에서 그라운드 라인에 쇼트시켜 제어선(20)의 전압레벨을 바꾸어 전자장치(21)∼(24)에서 나오는 신호를 온-오프 신호에서 시리얼 신호로 바꾼다.This control line is introduced into the serial signal tester 29 via the connector 28 on the tester side and the tester side wiring 32, and the wiring 32 when the troubleshooting connector 25 and the connector 28 are fitted. Is shorted to the ground line in the tester 29 to change the voltage level of the control line 20 to change the signal from the electronic devices 21 to 24 from the on-off signal to the serial signal.

즉 종래형 테스터(27)와, 시리얼 신호용 테스터(29)의 식별을, 코넥터의 1핀의 전압레벨을 변화시킴으로서 전자장치에 판단시켜 신호의 종류를 전환한다.That is, the identification of the conventional tester 27 and the serial signal tester 29 is determined by changing the voltage level of one pin of the connector, and the electronic device is judged to switch the type of signal.

종래형 테스터(27)을 사용 할 때에는 코넥터(26)의 핀중 제어선(20)에 접속되는 핀을 빈핀으로 하여 테스터(26)에 접속시키는 것을 중지하면, 끼워 맞춘상태에서도 온-오프 신호를 판독시켜 종래형 테스터(27)의 기능을 발휘 할 수가 있다.When using the conventional tester 27, if the pin connected to the control line 20 among the pins of the connector 26 is made a blank pin and stops connecting to the tester 26, the on-off signal is read even in the fitted state. The function of the conventional tester 27 can be exhibited.

상기 설명은 특정의 일단자의 전자레벨을 변화시킴으로서, 전자장치에서 나오는 신호방식을 변경시켜 2종류 이상의 전송이 가능하도록 자동차용 고장진단 시스템에 관하여 설명한 것이며 그 신호 내용도 온-오프와 시리얼 전송을 표시한 것이지만, 특정핀을 두개 이상으로 함으로써 현 상태 이상의 다수의 신호 시스템을 전환 할 수도 있으며 보다 넓은 범위로의 전환을 할 수 있어 상기 실시예와 동등의 효과를 발휘하게 된다.The above description has been made of a fault diagnosis system for a vehicle in which two or more types of transmissions are possible by changing a signal type from an electronic device by changing an electronic level of a specific terminal. The signal contents also indicate on-off and serial transmission. However, by using two or more specific pins, it is possible to switch a plurality of signal systems of the current state or more, and to switch to a wider range, thereby achieving the same effect as the above embodiment.

이 발명은 이상 설명한 바와 같이 자동차에 탑재된 전자장치를 고장진단 할 때 차량마다 유사의 장소 또는 위치에 공통의 코넥터를 맞붙이고 이 코넥터에서의 신호를 이용하는 시스템에 있어서, 고장진단용 코넥터에 진단용 테스터의 코넥터를 삽입시키지 않는 상태에 있어서 온-오프 신호와 진단용 테스터의 코넥터를 삽입하였을 때 자동차에 탑재한 고장진단용 코넥터에 나타나는 신호의 내용이 동일 핀 이라 하더라도 전혀이종의 시리얼 신호를 수신 할 수 있도록 하였으므로 전자장치가 동일 하여도 두 종류 이상의 테스터가 사용 할 수 있게 되어 전용테스터의 개발이 불필요하게 되며 종래의 테스터도 신형 테스터도 동일 코넥터를경유하여 사용 할 수 있게 되어 테스터 전반에 걸쳐 요하게 되는 비용을 염가로 할 수 있다.As described above, the present invention relates to a system in which a common connector is attached to a similar place or location for each vehicle and a signal using the connector is used to diagnose an electronic device mounted on a vehicle. When the on-off signal and the connector of the diagnostic tester are inserted when the connector is not inserted, even if the contents of the signal displayed on the troubleshooting connector mounted on the vehicle are the same pin, it is possible to receive heterogeneous serial signals. Even if the same device is used, two or more types of testers can be used, so the development of a dedicated tester is unnecessary, and both conventional testers and new testers can be used through the same connector at low cost. can do.

Claims (1)

항시 고장진단 결과를 온-오프 신호로 출력시키는 자동차에 탑재한 복수의 전자장치. 이 전자장치에서 출력되는 고장진단 결과의 온-오프 신호를 제1의 코넥터를 경유하여 수신하며 판정 결과를 표시하는 제1의 테스터, 상기 각 전자장치에서 출력되는 상기 온-오프신호에서 시리얼 신호로 전환시키고 또 상기제1의 코넥터의 소정의 단자 위치에 대응시켜 배선하여 제1의 테스터에 이 시리얼 신호의 도입을 저지하는 제어선, 상기 시리얼 신호를 사용하여 상기 각 전자장치의 고장진단시 이 시리얼 신호를 상기 제어선을 통하여 도입시키는 제2의 코넥터, 상기 고장진단시 상기 제어선에 접속시키는 제3의 코넥터를 통하여 상기 시리얼 신호를 입력시키며 또 제2 및 제3의 코넥터를 접속시켰을 때 상기 제어선의 제압레벨을 바꾸어 상기 각 전자장치에서 출력하는 온-오프신호 각 전자장치에 시리얼 신호로 변환시켜 고장진단을 행하는 제2의 테스터를 구비하여서된 자동차용 전자장치의 고장진단시스템.A plurality of electronic devices mounted in a vehicle that always outputs a fault diagnosis result as an on-off signal. A first tester which receives an on-off signal of the fault diagnosis result output from the electronic device via a first connector and displays a determination result; and from the on-off signal output from each of the electronic devices to a serial signal A control line for switching and wiring corresponding to a predetermined terminal position of the first connector to prevent the introduction of the serial signal to the first tester; The control signal when the serial signal is inputted through a second connector for introducing a signal through the control line and a third connector for connecting the control line when the failure is diagnosed, and when the second and third connectors are connected. A second diagnosis is performed by varying the voltage suppression level of the wire and converting the on-off signal outputted from each electronic device into a serial signal for each electronic device. Fault diagnosis system of automotive electronic device equipped with tester.
KR1019870006372A 1986-08-18 1987-06-23 Fault diagnosis system of automotive electronics Expired KR900004372B1 (en)

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JP??61-193120 1986-08-18
JP61193120A JPH07122659B2 (en) 1986-08-18 1986-08-18 Failure diagnosis system for automobile electronic devices
JP61-193120 1986-08-18

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JPH07122659B2 (en) 1995-12-25
DE3727549A1 (en) 1988-02-25
USRE33692E (en) 1991-09-17
DE3727549C2 (en) 1990-05-03
JPS6348476A (en) 1988-03-01

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