JP5820118B2 - Connector module ID setting method - Google Patents

Description

The present invention relates to ID setting method for setting the ID of the connector module with a built-in communication function.

  A connector module with a built-in communication function is used as a connector module for connecting an electric wire mounted on a vehicle. By incorporating the communication function in the connector module, it is possible to reduce the computational load on the ECU (Electronic Control Unit) that controls the loads (lamps, motors, etc.) connected to each connector module. Reduction and downsizing of the apparatus can be achieved. In a connector module incorporating such a communication function, a command from the ECU can be identified and received by setting a communication ID.

  As a method of setting an ID for each connector module, it is conceivable to create a connector module in which an ID is set in advance and connect it to a desired position of a bus connected to the ECU. May be installed. That is, as shown in FIG. 6, when the connector modules 61 to 65 having IDs set in advance are attached to the bus 66 connected to the ECU or the like, the attachment positions of the connector modules 61 to 65 are uniquely determined. Therefore, if the mounting position is wrong, the entire system will not operate normally.

  Therefore, in order to solve such a problem, a method is considered in which a connector module whose ID is not set is installed at a predetermined mounting position, and thereafter the ID of each connector module is set. As a conventional ID setting method, for example, a method described in JP 2010-215163 A (Patent Document 1) is known.

  The patent document 1 discloses that when an identifier of a slave device is set, the identifier is set by sending data from the master device to each slave device by daisy chain connection. However, the method of setting the identifier of each slave device by data communication between the master device and the slave device has a drawback that the device configuration is complicated and the cost is increased.

  Japanese Patent Application Laid-Open No. 4-191952 (Patent Document 2) discloses that a machine number setting connector is provided in each of a plurality of slots connected to the common bus 66, and the machine number setting connector includes a machine number. Two cables are provided for each bit. The machine number can be set to be “0” when the two cables are short-circuited and “1” when the two cables are opened. However, in Patent Document 2, it is necessary to provide a machine number setting connector for each slot, which disadvantageously increases the size of the apparatus.

JP 2010-215163 A (Sanden) JP-A-4-191952 (Fujitsu)

  As described above, in the conventional example disclosed in Patent Document 1, it is necessary to perform communication processing in order to determine the identifier of each slave device. In the conventional example disclosed in Patent Document 2, a machine number is set. Therefore, there is a problem that the apparatus configuration becomes large-scale.

The present invention has been made to solve such conventional problems, and an object, ID setting is available connector module to set the ID of each connector module with a simple configuration It is to provide a method.

The ID setting method for the connector module according to claim 1 has a communication function and a plurality of ID setting terminals, and sets each ID setting terminal to be used for communication by connecting to each power supply or ground. In the ID setting method of the connector module, each ID setting terminal is connected to the power source via a power supply side metal wire, and each ID setting terminal is connected to the ground via a ground side metal wire. The power supply side metal wire and the ground side metal wire have a characteristic of being disconnected when a current of a predetermined value or more is applied, and the plurality of connector modules are connected to a data communication bus. flow after each connector module, wherein each ID setting terminals, one of the power supply or the ground, the predetermined value or more current between And by said one of said power supply side metal line or the ground side metal wire are connected to each ID setting terminals, and cutting either, based on the voltage of the ID setting terminals, ID of each connector module And a step of setting

According to a second aspect of the present invention, there is provided the ID setting method for a connector module according to the first aspect of the invention, wherein the step of passing a current of a predetermined value or more is executed when the connector module is in a non-energized state.

According to a third aspect of the present invention, there is provided the connector module ID setting method according to the first aspect , wherein the ground side metal wire and the power source side metal wire are fuses.

The method of setting the ID of the engagement Turkey connector module with the present invention, metal lines (power supply side metal wire, a ground side metal wire) was placed in a conductive state between the ID setting terminals and power supply terminals, and ground terminals In this state, connect to the bus. Thereafter, a current is passed between one of the power supply terminal and the ground terminal and each ID setting terminal to cut one of the power supply side metal line or the ground side metal line. Therefore, the ID setting terminal conducts only with the other of the power supply side metal line or the ground side metal line, and each ID terminal can be set to “Hi” or “Lo” to set the ID. Therefore, it is possible to avoid the trouble of connecting the connector module by mistake.

It is explanatory drawing which shows the state in which the connector module which concerns on one Embodiment of this invention is connected to the bus | bath. It is explanatory drawing which shows the structure of the board | substrate provided in the connector module which concerns on one Embodiment of this invention. FIG. 3 is an equivalent circuit diagram of the circuit shown in FIG. 2. It is explanatory drawing which shows the structure of the jig used with the ID setting method of the connector module which concerns on one Embodiment of this invention. It is a flowchart which shows the ID setting procedure of the connector module which concerns on one Embodiment of this invention. It is explanatory drawing which shows the state in which the connector module in the past is connected to the bus | bath.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing a connection state of connector modules according to an embodiment of the present invention. A plurality of connector modules 11 to 15 are connected to an ECU (not shown) mounted on a vehicle, for example, via a bus 16. It is connected.

  And each connector module 11-15 is provided with the communication function for performing data communication between ECU, Based on the command signal transmitted from ECU, the load connected to each connector module 11-15 The operation of (not shown) is controlled. The connector modules 11 to 15 are connected to the bus 16 with no ID set. Therefore, when the operator connects the connector modules 11 to 15 to the bus 16, it is not necessary to select the connector modules 11 to 15. In this embodiment, after the connector modules 11 to 15 are connected to the bus 16, the ID of each connector module 11 to 15 is set to perform reliable ID setting.

  FIG. 2 is an explanatory diagram showing a specific configuration of the connector module 11. The connector modules 12 to 15 have the same configuration. As shown in FIG. 2, a connector 22 on which various electronic components are mounted is provided in the connector module 11, and a substrate power supply 24 and a substrate ground 26 are formed on the substrate 22.

  Further, a power supply pattern 25 and ground patterns 27 to 29 are formed. The power supply pattern 25 is connected to the substrate power supply 24 via the resistor R1, and the ground pattern 29 is connected to the substrate ground 26 via the resistor R2. The ground patterns 27 to 29 are connected by an intermediate layer of the substrate 22.

  The power supply pattern 25 is connected to the lead frame 30 via the wire 23, and the leading end of the lead frame 30 is a power supply terminal. The ground pattern 29 is connected to the lead frame 35 via the wire 23, and the leading end of the lead frame 35 is a ground terminal.

  Further, terminal patterns 51 to 54 for setting ID are formed on the substrate 22, and the terminal pattern 51 is connected to the lead frame 31 through the wire 23, and the leading end of the lead frame 31 is connected to the terminal a (ID Setting terminal). The terminal pattern 52 is connected to the lead frame 32 through the wire 23, and the tip of the lead frame 32 is a terminal b (ID setting terminal). Further, the terminal pattern 53 is connected to the lead frame 33 through the wire 23, and the leading end of the lead frame 33 is a terminal c (ID setting terminal). Further, the terminal pattern 54 is connected to the lead frame 34 through the wire 23, and the leading end of the lead frame 34 is a terminal d (ID setting terminal).

  The terminal patterns 51 to 54 are connected to the power supply pattern 25 and the ground pattern 29 via fuses (metal wires that are disconnected by a current greater than or equal to a predetermined value).

  That is, the terminal pattern 51 is connected to the power supply pattern 25 on the substrate 22 via the fuse Fa1 (power supply side metal line) and to the ground pattern 27 via the fuse Fa2 (ground side metal line). . The terminal pattern 52 is connected to the power supply pattern 25 via the fuse Fb1 and is connected to the ground pattern 28 via the fuse Fb2 on the substrate 22. Similarly, the terminal pattern 53 is connected to the power supply pattern 25 via the fuse Fc1 on the substrate 22 and to the ground pattern 28 via the fuse Fc2. The terminal pattern 54 is connected to the power supply pattern 25 on the substrate 22 via the fuse Fd1 and to the ground pattern 29 via the fuse Fd2.

  From the above description, when the circuit shown in FIG. 2 is equivalently shown, the circuit shown in FIG. 3 is obtained. That is, the terminals a to d are respectively connected to both the power supply terminal and the ground terminal via the fuse. In the present embodiment, a current is passed between the terminal a to the terminal d and the power supply terminal or the ground terminal to cut one fuse connected to the terminal a to the terminal d. Is connected to the power supply pattern 25 or the ground pattern 29 to set the ID of the connector module 11.

  FIG. 4 is an explanatory view showing a jig 42 for supplying a current for cutting the fuse, and is composed of a voltage source 41 having two output terminals T1 and T2. The voltage source 41 only needs to have a function of flowing a current for cutting the fuse, and may be direct current or alternating current. For example, it can be configured with a dry battery or the like.

  Next, the ID setting procedure of the connector module 11 according to the present embodiment will be described with reference to the flowchart shown in FIG. In this example, a case where the ID of the connector module 11 is set to “1, 0, 0, 0” will be described.

  First, it is determined whether or not the connector module 11 to be set with an ID is in a non-conductive state (step S11). If the connector module 11 is in a conductive state (NO in step S11), the connector module 11 is in a non-conductive state. (Step S12).

  Next, the terminal a is set to the Hi state (step S13). In this process, the output terminals T1 and T2 of the jig 42 shown in FIG. 4 are connected to the terminal a and the ground terminal, respectively, and energized (step S14). Then, an overcurrent flows through the fuse Fa2 connecting the terminal a and the ground terminal, and the fuse Fa2 is cut. If the terminal a is securely disconnected from the ground terminal (YES in step S15), the process proceeds to the setting for setting the terminal b to the Lo state (step S16).

In this process, the output terminals T1 and T2 of the jig 42 are connected to the terminal b and the power supply terminal, respectively, and energized (step S17). Then, an overcurrent flows through the fuse Fb1 connecting the terminal b and the power supply terminal, and the fuse Fb1 is cut. In a case where the between the terminal b and the power supply terminal is disconnected reliably (YES at step S18), and subsequently proceeds to the processing of setting the terminal c to the Lo state (step S19).

  In this process, the output terminals T1 and T2 of the jig 42 are connected to the terminal c and the power supply terminal, respectively, and energized (step S20). Then, an overcurrent flows through the fuse Fc1 connecting the terminal c and the power supply terminal, and the fuse Fc1 is disconnected. If the terminal c and the power supply terminal are securely disconnected (YES in step S21), the process proceeds to a process of setting the terminal d to the Lo state (step S22).

  In this process, the output terminals T1 and T2 of the jig 42 are connected to the terminal d and the power supply terminal, respectively, and energized (step S23). Then, an overcurrent flows through the fuse Fd1 connecting the terminal d and the power supply terminal, and the fuse Fd1 is cut. If the terminal d and the power supply terminal are securely disconnected (YES in step S24), the process ends.

  Thus, by cutting one of the two fuses connected to the terminals a to d, the terminals a to d can be connected to one of the power supply and the ground, and the desired ID can be selected. It can be set. In the above example, the ID can be set to “1, 0, 0, 0”.

  As described above, in the connector module 11 according to the present embodiment, the terminal 42 is exposed to the outside of the connector module 11, the power supply terminal, and the ground terminal with a simple operation of using the jig 42. The ID of the connector module 11 can be set to a desired ID. Therefore, since the connector module 11 can be attached to a predetermined installation place without setting an ID, a reliable ID is possible.

  Further, since the ID setting can be performed by a simple operation of connecting the jig 42 between the terminals, the apparatus configuration can be simplified and the setting operation can be easily performed without providing a complicated function. .

  In the above-described embodiment, the example of setting the ID of the connector module 11 using the four terminals a to d (that is, the 4-digit ID) has been described, but the number of digits of the ID is 4 digits. The same method can be applied to ID setting of 1 to 3 digits or 5 digits or more.

  In the above-described embodiment, the example in which the ID of the connector module 11 is set has been described. However, the IDs of the connector modules 12 to 15 can be set in the same procedure.

Has been described on the basis of the connector embodiment of the ID shown how to configure the module of the present invention, the present invention is not limited thereto, each part of the configuration, any configuration having a similar function Can be replaced with something.

  For example, in the above-described embodiment, the example in which the fuse is used as the power supply side metal line and the ground side metal line has been described. However, the present invention is not limited to this, and a current of a predetermined value or more flows. A metal wire other than the fuse may be used as long as it is a broken metal wire.

  The present invention can be used to set the ID of a connector module.

11-15 connector module 16 bus 22 substrate 23 wire 24 substrate power supply 25 power supply pattern 26 substrate ground 27-29 ground pattern 30-35 lead frame 41 voltage source 42 jig 51-54 terminal pattern 61-65 connector module Fa1, Fa2, Fb1 , Fb2, Fc1, Fc2, Fd1, Fd2 fuse R1, R2 resistance

Claims (3)

In an ID setting method for a connector module that includes a communication function and includes a plurality of ID setting terminals, and sets the ID used for communication by connecting each ID setting terminal to a power source or a ground.
Each ID setting terminal is connected to the power supply via a power supply side metal line, and each ID setting terminal is connected to the ground via a ground side metal line,
The power supply side metal wire and the ground side metal wire have a characteristic of being cut when a current of a predetermined value or more is applied,
After connecting the plurality of connector modules to a data communication bus, for each connector module, a current equal to or greater than the predetermined value is passed between each ID setting terminal and one of the power supply and the ground. Cutting either one of the power supply side metal wire or the ground side metal wire connected to each ID setting terminal;
Setting the ID of each connector module based on the voltage of each ID setting terminal;
An ID setting method for a connector module, comprising: 2. The ID setting method for a connector module according to claim 1, wherein the step of flowing a current of a predetermined value or more is executed when the connector module is in a non-energized state. The ID setting method for a connector module according to claim 1, wherein the ground side metal line and the power source side metal line are fuses.

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