KR101359316B1 - Self-diagnosing type connector assembly for can - Google Patents

Self-diagnosing type connector assembly for can Download PDF

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Publication number
KR101359316B1
KR101359316B1 KR1020120125790A KR20120125790A KR101359316B1 KR 101359316 B1 KR101359316 B1 KR 101359316B1 KR 1020120125790 A KR1020120125790 A KR 1020120125790A KR 20120125790 A KR20120125790 A KR 20120125790A KR 101359316 B1 KR101359316 B1 KR 101359316B1
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KR
South Korea
Prior art keywords
communication
connection terminal
connector assembly
main body
self
Prior art date
Application number
KR1020120125790A
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Korean (ko)
Inventor
신영준
김광수
장판수
백일현
양동욱
Original Assignee
이수산업(주)
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Priority to KR1020120125790A priority Critical patent/KR101359316B1/en
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Publication of KR101359316B1 publication Critical patent/KR101359316B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The present invention relates to a connector assembly used for connecting cables for CAN communication of a vehicle. The connector assembly comprises a main body (10) having a space inside; a main board (20) installed in the main body (10); an MCU (30) installed at the main board (20); and a power supply unit (40) for supplying power to the MCU (30), wherein communication connection terminals (21, 22, 23) installed at the main board (20) and a power supply connection terminal (24) are provided at both ends and any one side of the main body (10), and the MCU (30) is installed to be connected to the cable for CAN communication and configured to monitor communication states among the communication connection terminals (21, 22, 23). Accordingly, the connector assembly can monitor CAN communication states constantly, thereby quickly and accurately detecting CAN communicatioin errors.

Description

Self-diagnosing Type Connector Assembly for CAN}

The present invention relates to a connector assembly for self-diagnostic CAN communication, and more particularly, to a self-diagnostic type used to connect a communication cable installed for CAN communication between electronic control devices mounted on a vehicle such as a controller or an ECU. The present invention relates to a connector assembly for CAN communication.

Automobiles, etc., are equipped with various types of devices including engines and transmissions, and electronic control units (ECUs) that control each of these devices.In order to control the vehicle properly, information about each device needs to be shared. There is a communication between the electronic control devices for this purpose.

Conventionally, a point-to-point communication has been performed to perform communication between electronic control units (ECUs). However, as the demand for automation, convenience, and safety of vehicle control increases, more types of devices are used. In order to control these devices, more electronic control devices have to be provided. In this way, connecting the electronic control devices in a one-to-one manner not only increases the cost due to the increase in the weight of the wiring, There is a limit to sharing.

In order to solve the problems of one-to-one communication, CAN (Controller Area Network) communication has been developed. This CAN communication is a standard communication standard designed to allow microcontrollers or devices to communicate with each other without a host computer in a vehicle. In recent years, the field of application is increasingly being used not only in automobiles but also in industrial automation devices and medical equipments.

Meanwhile, in order to implement such CAN communication, as shown in FIG. 1, each electronic control unit (ECU) must be connected by a communication cable, and the structure of the communication cable is a standard of CAN communication (SAE J1939-11 TOPOLOGY). The requirements specified in

Cables commonly used for CAN communication are composed of CAN High Wire (CAN-H) and CAN Low Wire (CAN-L). Signal cables covered with an insulator and shielded body to prevent degradation of communication quality due to electrical noise. (shield) and an outer cover that surrounds all of them, and in order to connect the cables to each other, first remove the outer cover and the shield, and then again connect the signal lines as shown in FIG. 2 (a, b). Since the shield body is difficult to remove mechanically and must be manually removed, not only does it take a long time to connect the cable, but also when the cable is connected by manual operation, the shield may be damaged in the process. As a result, there is a problem that the communication quality is drastically reduced due to external noise.

In order to solve the problems of the conventional cable connection method for CAN communication, a method of connecting an electronic control device and a cable using a connector has been developed. As an example of the connector used at this time, Japanese Patent No. 4767025 A branch connector disclosed in this document may be a connector disclosed in this document, in which a plurality of communication lines are branched as shown in FIG. 3, and both or any of a pair of communication lines respectively connected to branch points within a branch connector. A filter circuit is provided on each one to attenuate the frequency band signal component of the reflected wave generated in each communication line, whereby a plurality of cables can be easily connected.

However, even when the electronic controllers are connected by using the connector as described above, if the defect of the connector itself exists, or the connection between the connector and the cable or the connection between the connector and the electronic controller is not good, it may lead to a serious accident. After the cable connection work is completed, check the connection status using a simulation device or tester to check for communication problems.

Even if the connection state is checked after the cable connection work as described above, the connection of the cable and the connector, or the connection between the electronic control device and the connector may be loosened or dislodged due to vibration caused by driving of the engine of the vehicle or vibration generated during the driving process. In this case, even if it is necessary to check the connection status and communication quality of the connector from time to time because it may lead to a serious failure or accident, it is not the case.

And even if you check the connection status and communication quality of the connector from time to time, it is necessary to check all cables and connectors in order to detect an error, so it takes a long time to detect and solve a cable connection failure or malfunction.

The present invention has been made to solve the problems of the conventional CAN communication connector as described above, it is possible to constantly monitor the connection state between the cable and the connector, or between the connector and the electronic control device, It is an object of the present invention to provide a connector assembly for self-diagnostic CAN communication, which makes it easy to detect a location where a communication failure occurs when a communication failure occurs.

An object of the present invention as described above is a CAN communication connector assembly, the body formed space therein; A main board installed inside the main body; An MCU installed on the main board; Comprising a power supply unit for supplying power to the MCU, and both ends and any one side of the main body is exposed to the communication connector and the power supply connector installed on the main board, respectively, the MCU is connected to the CAN communication cable It is achieved by being configured to monitor the communication state between the communication connection terminal.

In this case, the MCU installed on the main board is preferably built-in log storage means for storing the CAN communication error, this log storage means may be implemented as EEPROM.

In addition, the main body is provided with a plurality of LED lamps, wherein any one of the LED lamps is preferably selectively lit according to the CAN communication state.

And the distance between the communication connection terminal is preferably at least 10cm.

At this time, the communication connection terminal and the power supply connection terminal is preferably installed on the upper or rear surface corresponding to the width of the main board.

In the present invention, since the MCU is provided, the CAN communication status can be monitored at all times by itself, and therefore, communication errors can be detected at an early stage, thereby preventing failures or accidents caused by communication errors in advance. The reliability of the system can be secured.

In addition, the present invention can immediately identify the location where the communication failure occurs through the LED lamp can reduce the manpower and time required to detect the communication failure.

In the present invention, since the EEPROM is provided, when the communication state is abnormal, the abnormal state occurrence information can be stored as a log file and output as necessary, so that information on the point of occurrence and the cause of the abnormality can be obtained quickly. have.

1 is a configuration diagram showing an example of a network configuration of conventional CAN communication;
2 is a plan view showing an example of a conventional cable connection method,
3 is a configuration diagram showing an example of a conventional connector,
4 is a configuration diagram showing an example of a connector assembly for self-diagnostic CAN communication according to the present invention;
5 is a perspective view showing an example of a connector assembly for self-diagnostic CAN communication according to the present invention;
6 is a photograph showing an example in which a connector is installed on a main board according to the present invention.

Hereinafter, the configuration of the present invention through the accompanying drawings showing a preferred embodiment will be described in more detail.

The present invention can monitor the connection state between the cable and the connector, or between the connector and the electronic control device at all times, and in the case of a communication failure due to a poor connection, etc. To provide a connector assembly for communication, the connector assembly of the present invention for this purpose consists of a main body 10, the main board 20, the MCU 30 and the power supply 40 as shown in FIG. .

The main body 10 is a casing having a rectangular parallelepiped shape, which is made of aluminum or synthetic resin, and has a proper accommodation space in which a main board 20 to be described later can be installed. Separately molded to the upper and lower parts for simplicity, it is made of a structure that is assembled by screws or bolts.

And both ends of the main body 10 is formed with a through hole (not shown) in communication with the inner receiving space, the through hole is provided so that the communication connection terminals 21 and 22 to be described later, respectively, to protrude to the outside, the main body A through hole (not shown) is formed in any one of the side surfaces in the longitudinal direction of (10), and the communication connection terminal 23 and the power supply connection terminal 24 to be described later are respectively provided. In the present invention, the communication connection terminals are formed on both ends and the side surfaces of the main body 10, respectively, in the communication connection terminals 21 and 22 respectively installed at both ends of the main body 10 according to the installation position of the ECU. Since one communication connection terminal 21 and one of the two communication connection terminals 21 and 23 of the communication connection terminal 23 installed on the side of the main body 10 can be selected and connected to the cable connection The work is easier and the installation space can be reduced.

In addition, the communication connection terminal 23 and the power supply connection terminal 24 installed on the side are rotated at an angle of 90 ° with respect to the communication connection terminals 21 and 22 installed at both ends, and at the same time, the main board 20 It is preferable to be installed on the upper surface or the rear surface corresponding to the width, whereby the size of the main body 10 can be made more compact in accordance with the width of the main substrate 20.

At this time, the distance between the communication connection terminal 21 and the communication connection terminal 22, or the distance between the communication connection terminal 23 and the communication connection terminal 22 is about 10 cm or more so that the communication connection terminal (communication connection terminal 21 and The communication connection terminal 22, or the communication connection terminal 23 and the communication connection terminal 22 is preferably spaced apart by a predetermined interval or more so that the space between them can be secured physically more than 10cm, whereby the connection point By too close to each other, noise and the like are prevented from entering.

On the upper surface of the main body 10, LED lamps 25A which selectively light up according to the communication state to indicate abnormalities and LED lamps 25B which indicate whether power to the MCU 30 to be described later are supplied are respectively provided. It is provided.

The main board 20 is located in the internal space of the main body 10. The main board 20 is provided with a MCU 30 and an electronic circuit, which will be described later, in a PCB form so as to monitor a communication state. A plurality of communication connection terminals 21, 22, 23 are installed by the soldering, each of the communication connection terminals (21, 22, 23) and the CAN communication wire (CAN-H, CAN-L) and the shield (CAN) -S)) are connected to correspond to each other.

In addition, the main board 20 is provided with an MCU (Main Control Unit) 30 for detecting an error by monitoring a communication state of a communication wire connected through each communication connection terminal 21, 22, and 23. The MCU 30 is provided with a memory (EEPROM) in which a microprocessor and a control logic are stored as a log storage means.

And as shown in Fig. 4, the CAN communication wires connecting the communication connection terminals 21 and 22 are respectively connected to the MCU 30, and a power supply unit 40 for supplying operation power to the MCU 30 is provided. In this configuration, the MCU 30 detects whether there is an error in communication and turns on the LED lamp 25A to indicate whether the communication state is normal or abnormal.

When the communication state is abnormal, it is preferable to turn on the LED lamp 25A as described above and to save the abnormal state occurrence information as a log file so that it can be output as needed. It is stored in the memory (EEPROM) provided in the).

The power supply unit 40 supplying power to the MCU 30 is connected to the power supply connection terminal 24 and one end thereof to the power supply connection terminal 24 as shown in FIGS. 4 and 5, and the other end to the vehicle. It is made of a power cable (not shown) connected to the power line provided, the power supply connection terminal 24 is connected to the LED lamp 25B so as to check whether the power is normally supplied as described above.

As described above, the present invention can monitor the CAN communication status by the MCU at any time, thereby not only preventing failures or accidents caused by communication errors, but also quickly and accurately detecting and solving errors in CAN communication. The reliability of the CAN communication system is secured, and the location of the communication error can be immediately confirmed through the LED lamp, which greatly reduces the manpower and time required to detect the communication error.

10: main body 20: main board
21, 22, 23: communication connection terminal 24: power supply connection terminal
25A, 25B: LED lamp 30: MCU
40: power supply

Claims (7)

In the connector assembly used to connect the CAN communication cable of the vehicle to each other,
A main body 10 having a space formed therein;
A main board 20 installed inside the main body 10;
MCU 30 installed on the main substrate 20;
It is made of a power supply unit 40 for supplying power to the MCU 30,
Both ends and one side of the main body 10 are provided with communication connection terminals 21, 22, 23 and a power supply connection terminal 24 installed on the main board 20, respectively.
The MCU (30) is connected to the CAN communication cable is installed, the self-diagnostic CAN communication connector assembly, characterized in that configured to monitor the communication state between the communication connection terminal (21, 22, 23).
The method according to claim 1,
Self-diagnostic CAN communication connector assembly, characterized in that the built-in log storage means for storing the CAN communication error in the MCU (30) installed on the main board (20).
The method according to claim 2,
The log storage means is a self-diagnostic CAN communication connector assembly, characterized in that the EEPROM.
The method according to claim 1, 2 or 3,
The main body 10 is a connector assembly for self-diagnostic CAN communication, characterized in that a plurality of LED lamps (25A, 25B) is provided.
The method of claim 4,
The LED lamp (25A) is a self-diagnostic CAN communication connector assembly, characterized in that selectively lighted according to the CAN communication status.
The method according to claim 1 or 2,
Self-diagnostic CAN communication connector assembly, characterized in that the distance between the communication connection terminal 21 and the communication connection terminal 22, or the communication connection terminal 23 and the communication connection terminal 22 is 10cm or more.
The method of claim 6,
The communication connection terminals 21 and 22 are installed at both ends of the main body 10, and the communication connection terminal 23 and the power supply connection terminal 24 are disposed on either side of the main body 10. It is installed rotated at an angle of 90 ° with respect to the communication connection terminals 21 and 22,
The communication connection terminal 23 and the power supply connection terminal 24 are self-diagnostic type CAN communication connector assembly, characterized in that installed on the upper or rear side corresponding to the width of the main board (20).
KR1020120125790A 2012-11-08 2012-11-08 Self-diagnosing type connector assembly for can KR101359316B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120125790A KR101359316B1 (en) 2012-11-08 2012-11-08 Self-diagnosing type connector assembly for can

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120125790A KR101359316B1 (en) 2012-11-08 2012-11-08 Self-diagnosing type connector assembly for can

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109017626A (en) * 2018-09-30 2018-12-18 合肥创源车辆控制技术有限公司 A kind of vehicle-mounted Local Network System
KR101938756B1 (en) * 2018-05-15 2019-01-16 김동현 POE Patch panel having the function of power supply status diagnostics and indicate
KR102141510B1 (en) * 2019-01-29 2020-08-06 조순호 Terminal connector of can communication used in car
KR20220017797A (en) * 2020-08-05 2022-02-14 주식회사 모토모 Obd hub apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003218904A (en) 2002-01-24 2003-07-31 Auto Network Gijutsu Kenkyusho:Kk In-vehicle communication system
KR20070005386A (en) * 2005-07-06 2007-01-10 주식회사 현대오토넷 Network system and method thereof using inter-integrated circuit for vehicle
KR20090125528A (en) * 2008-06-02 2009-12-07 현대자동차주식회사 Method for communicating can in car, and connector apparatus implementing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003218904A (en) 2002-01-24 2003-07-31 Auto Network Gijutsu Kenkyusho:Kk In-vehicle communication system
KR20070005386A (en) * 2005-07-06 2007-01-10 주식회사 현대오토넷 Network system and method thereof using inter-integrated circuit for vehicle
KR20090125528A (en) * 2008-06-02 2009-12-07 현대자동차주식회사 Method for communicating can in car, and connector apparatus implementing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101938756B1 (en) * 2018-05-15 2019-01-16 김동현 POE Patch panel having the function of power supply status diagnostics and indicate
CN109017626A (en) * 2018-09-30 2018-12-18 合肥创源车辆控制技术有限公司 A kind of vehicle-mounted Local Network System
CN109017626B (en) * 2018-09-30 2024-01-30 合肥一通电子技术有限公司 Vehicle-mounted local network system
KR102141510B1 (en) * 2019-01-29 2020-08-06 조순호 Terminal connector of can communication used in car
KR20220017797A (en) * 2020-08-05 2022-02-14 주식회사 모토모 Obd hub apparatus
KR102514835B1 (en) 2020-08-05 2023-03-28 주식회사 모토모 Obd hub apparatus

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