Connector and vehicle control system

Abstract

To easily realize a configuration for making the type of an electronic apparatus connected to a connection target identified on the connection target side without providing an ECU which issues information for identifying the type of the electronic apparatus.SOLUTION: A connector 6 is for connecting an electronic apparatus 90 to a wiring board 1. The connector 6 has an output circuit 7 including a first resistor 21. The output circuit 7 outputs a resistance value signal according to the resistance value of the first resistor 21 to a wire board side 1 when the connector 6 is being connected to the wire board 1.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a connector and an in-vehicle control system. [Background technology]

[0002] Patent Document 1 discloses a power supply control system for a vehicle. This power supply control system for a vehicle includes a power supply control box. Either an electrical device of specification A or an electrical device of specification B is connected to this power supply control box via a wire harness. A non-volatile memory and a power supply control unit are mounted on the power supply control box. The non-volatile memory stores customization information corresponding to the specifications of both electrical devices. The power supply control unit refers to the customization information corresponding to the specifications of the connected electrical device and performs control according to the specifications.

[0003] In this technology, the power supply control unit needs to identify the specifications of the electrical equipment connected to the power supply control box. Patent Document 1 shows the following configuration as an example. An ECU is mounted inside the electrical equipment. When the electrical equipment is connected to the power supply control box, this ECU is connected to the power supply control box and notifies the power supply control unit of information for identifying the specifications of the electrical equipment. This allows the power supply control unit to automatically identify the specifications of the electrical equipment when the electrical equipment is connected to the power supply control box. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-43872 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when identifying the specifications of the electrical equipment using the above-mentioned method, an ECU is required to notify information for identifying the specifications of the electrical equipment.

[0006] The present disclosure aims to provide a technology that makes it easy to realize a configuration that allows the connection target to identify the type of electrical equipment connected to the connection target, without having to provide an ECU that notifies information for identifying the type of electrical equipment. [Means for solving the problem]

[0007] The connector of the present disclosure comprises: A connector for connecting an electrical device to a wiring board, an output circuit including a first resistor section; The output circuit outputs a resistance value signal corresponding to a resistance value of the first resistor portion to the wiring board when the connector is connected to the wiring board.

[0008] The in-vehicle control system of the present disclosure comprises: A connector according to the present disclosure; A wiring board; A control circuit is provided on the wiring board, The control circuit performs control corresponding to the resistance value signal output from the output circuit. Effect of the Invention

[0009] According to the technology disclosed herein, it is easy to realize a configuration in which the connection target identifies the type of electric equipment connected to the connection target without providing an ECU that notifies information for identifying the type of electric equipment. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is an explanatory diagram conceptually showing the electrical configuration of an in-vehicle control system according to a first embodiment. [Diagram 2] FIG. 2 is an explanatory diagram showing the configurations of the control circuit, the electrostatic protection circuit, and the output circuit in more detail. [Diagram 3] FIG. 3 is an explanatory diagram showing a first example in which a connector is connected to a wiring board. [Figure 4] FIG. 4 is an explanatory diagram showing a second example in which a connector is connected to a wiring board. [Diagram 5] FIG. 5 is a flowchart showing a flow of processing performed by the control circuit of the first embodiment. [Figure 6] FIG. 6 is an explanatory diagram showing the correspondence relationship between the resistance value of the first resistor section, the electric device, and the port. [Figure 7] FIG. 7 is an explanatory diagram conceptually showing the electrical configuration of the vehicle-mounted control system according to the second embodiment. [Figure 8] FIG. 8 is an explanatory diagram showing the correspondence relationship between combinations of resistance value information of a plurality of first resistor units and control patterns. [Figure 9] FIG. 9 is a front view of the board-side connector of the third embodiment. [Figure 10] FIG. 10 is a cross-sectional view of the first connector of the third embodiment as viewed from behind. [Figure 11] FIG. 11 is a cross-sectional view of the second connector of the third embodiment as viewed from behind. [Figure 12] FIG. 12 is a cross-sectional view of the third connector of the third embodiment as viewed from behind. [Figure 13] FIG. 13 is an explanatory diagram conceptually showing an electrical configuration in a state in which a first connector of the third embodiment is connected to a wiring board. [Figure 14] FIG. 14 is an explanatory diagram conceptually showing an electrical configuration in a state in which the second connector of the third embodiment is connected to the wiring board. [Figure 15] FIG. 15 is an explanatory diagram conceptually showing an electrical configuration in a state in which the third connector of the third embodiment is connected to the wiring board. [Figure 16] FIG. 16 is a flowchart showing a flow of processing performed by the control circuit of the third embodiment. [Figure 17] FIG. 17 is an explanatory diagram showing the connection position of the connector with respect to the board-side connector. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

[0012] [1] A connector for connecting an electrical device to a wiring board, an output circuit including a first resistor section; The output circuit outputs a resistance value signal corresponding to a resistance value of the first resistor portion to the wiring board when the connector is connected to the wiring board. connector.

[0013] The connector is configured such that the resistance value of the first resistor corresponds to the type of electrical device, and thus can output information for identifying the type of electrical device to the wiring board as a resistance value signal. With this configuration, the wiring board can identify the type of electrical device based on the resistance value signal. In other words, the connector can easily realize a configuration in which the type of electrical device connected to the wiring board is identified on the wiring board side without providing an ECU that notifies information for identifying the type of electrical device.

[0014] [2] The output circuit outputs the resistance value signal to the wiring board in response to an instruction signal being input from the wiring board. The connector described in [1].

[0015] The connector can cause the output circuit to output a resistance value signal to the wiring board in response to an instruction signal being input to the output circuit.

[0016] [3] The output circuit includes a second resistor section connected in series to the first resistor section, and outputs a voltage obtained by dividing a predetermined voltage by the first resistor section and the second resistor section as the resistance value signal. The connector according to [1] or [2].

[0017] The above connector makes it easy to simplify the configuration for outputting a resistance value signal in the output circuit.

[0018] [4] The connector has a plurality of the first resistors, The output circuit outputs the resistance value signal corresponding to the resistance value of each of the first resistors when the connector is connected to the wiring board. A connector according to any one of [1] to [3].

[0019] The connector can configure information for identifying the type of electrical device by a combination of resistance values ​​of the multiple first resistors, and therefore the connector can easily realize a configuration that allows many types of electrical devices to be identified on the wiring board side.

[0020] [5] A connector according to any one of [1] to [4], A wiring board; A control circuit is provided on the wiring board, The control circuit performs control corresponding to the resistance value signal output from the output circuit. In-vehicle control systems.

[0021] The in-vehicle control system can perform control corresponding to the resistance value signal output from the output circuit. Therefore, in the in-vehicle control system, the resistance value of the first resistor portion is configured to correspond to the type of the electric device, so that the resistance value signal becomes a signal corresponding to the type of the electric device, and the in-vehicle control system can cause the control circuit to perform control according to the type of the electric device.

[0022] [6] The connector has a plurality of the first resistors, the output circuit outputs the resistance value signal corresponding to the resistance value of each of the first resistor sections when the connector is connected to the wiring board; The control circuit performs control according to a combination of resistance value information specified from each of the resistance value signals. The in-vehicle control system according to [5].

[0023] The above-mentioned in-vehicle control system is configured so that combinations of resistance values ​​of the multiple first resistor sections correspond to the types of electrical equipment, thereby enabling the control circuit to selectively perform control in accordance with many types of electrical equipment.

[0024] [7] A static electricity protection circuit is provided between the connector connected to the wiring board and the control circuit. An in-vehicle control system according to [5] or [6].

[0025] In the above-described in-vehicle control system, the electrostatic protection circuit can suppress current flowing into the control circuit when the connector is connected to the wiring board.

[0026] [8] A board-side connector is provided on the wiring board and to which the connector is connected, the board-side connector has a first board-side terminal, a second board-side terminal, and a third board-side terminal to which a signal for the control circuit to control the electric device or a signal output from the electric device to the control circuit is applied, the connector has a first terminal connected to the first board-side terminal, a second terminal connected to the second board-side terminal, and a third terminal connected to the third board-side terminal, The output circuit outputs the resistance value signal from the second terminal in response to an instruction signal being input from the first terminal. A connector according to any one of [5] to [7].

[0027] The above-mentioned in-vehicle control system can realize control of an electric device by a control circuit or acquisition of a signal from an electric device by the control circuit via the third terminal and the third board-side terminal. Furthermore, the above-mentioned in-vehicle control system can realize a configuration in which an instruction signal is input to an output circuit and a resistance value signal is output from the output circuit, using the first terminal and the second terminal.

[0028] [9] The board-side connector has a plurality of the first board-side terminals, second board-side terminals corresponding to each of the first board-side terminals, a plurality of the third board-side terminals, a first port corresponding to each of the first board-side terminals, a second port corresponding to each of the second board-side terminals, and a third port corresponding to each of the third board-side terminals; the connector has a first fitting portion including the first terminal, a second fitting portion including the second terminal, and a third fitting portion including the third terminal, the second port and the third port are capable of being fitted with only the second fitting portion and the third fitting portion among the first fitting portion, the second fitting portion, and the third fitting portion, The first port is capable of fitting with any of the first fitting portion, the second fitting portion, and the third fitting portion. An in-vehicle control system according to [8].

[0029] The in-vehicle control system can more reliably connect the first terminal to the first board-side terminal by preventing the first fitting portion from being erroneously fitted into the second port or the third port. Furthermore, since the first port of the in-vehicle control system can be fitted into any of the first fitting portion, the second fitting portion, and the third fitting portion, some of the multiple first ports can be used for inputting resistance value signals, controlling electrical devices, and the like.

[0030]

[10] The board-side connector has a plurality of the first board-side terminals and second board-side terminals corresponding to each of the first board-side terminals, The control circuit includes: a detection process is performed by inputting the instruction signal to the first substrate-side terminal and receiving the resistance value signal output from a second substrate-side terminal corresponding to the first substrate-side terminal, performing the detection process for each of the first substrate side terminals in a predetermined order; The type of the connector is identified from the resistance value signal, and when it is determined that the identified connector is connected to another of the first board side terminals, the detection process for the other of the first board side terminals is omitted. An in-vehicle control system according to [8] or [9].

[0031] The in-vehicle control system performs the detection process in a predetermined order, and can specify the first board-side terminal to which the instruction signal should be output, even when the same connector is connected to a plurality of first board-side terminals. The in-vehicle control system can omit the detection process for the first board-side terminal that does not need to output the instruction signal.

[0032] [Details of the embodiment of the present disclosure] Specific examples of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0033] First Embodiment 1 discloses an in-vehicle control system 100. The in-vehicle control system 100 includes a wiring board 1, a control circuit 2, an electrostatic protection circuit 3, a board-side connector 5, a connector 6, an output circuit 7, and an intermediate circuit 8. The control circuit 2, the electrostatic protection circuit 3, and the board-side connector 5 are provided on the wiring board 1. The wiring board 1, the control circuit 2, the electrostatic protection circuit 3, and the board-side connector 5 configure an ECU (Electronic Control Unit).

[0034] The wiring board 1 has a configuration in which a conductive wiring pattern is printed on an insulating board body made of resin or the like.

[0035] The control circuit 2 is a circuit that controls a control target such as a load mounted on a vehicle. The control circuit 2 includes, for example, a microcomputer. The control circuit 2 is configured as, for example, an MCU (Micro Controller Unit). The control circuit 2 includes a CPU, a memory, and the like. The control circuit 2 is mounted on a wiring board 1. As shown in FIG. 2, the control circuit 2 has a plurality of input / output ports P, and transmits / receives signals to / from an external device via these ports P.

[0036] As shown in FIG. 1, the electrostatic protection circuit 3 is provided between the control circuit 2 and the board-side connector 5. The electrostatic protection circuit 3 suppresses a current flowing from the connector 6 side to the control circuit 2 side when the connector 6 is connected to the board-side connector 5. As shown in FIG. 2, the electrostatic protection circuit 3 has an individual circuit 10 provided in correspondence with each port P. The individual circuit 10 suppresses a current flowing from the connector 6 side to the port P side of the control circuit 2. The individual circuit 10 has a resistor 11 and a capacitor 12. One end of the resistor 11 is electrically connected to the port P. The other end of the resistor 11 is electrically connected to one end of the capacitor 12 and a terminal on the connector 6 side when the connector 6 is connected to the wiring board 1. The other end of the capacitor 12 is electrically connected to the ground 95.

[0037] 1, the board-side connector 5 is mounted on the wiring board 1. To the board-side connector 5, a connector 6 is connected.

[0038] The connector 6 is connected to an electric device 90 as shown in FIG. 1. The electric device 90 may be, for example, a device to be controlled by the control circuit 2, such as a switch, a load, or an ECU. The load may be, for example, an LED, a display, a buzzer, a speaker, or a motor. The electric device 90 may be, for example, a device that outputs a signal to the control circuit 2. For example, the electric device 90 may be a sensor or a state monitoring device that outputs a signal according to the on / off state of a monitored object. In this embodiment, an example in which the electric device 90 is a switch or an LED will be described.

[0039] The connector 6 is connected to the wiring board 1 via the board-side connector 5. When the connector 6 is connected to the board-side connector 5, the connector 6 connects an electric device 90 to the wiring board 1 via the board-side connector 5. The connector 6 has an output circuit 7 and an intermediate circuit 8. The output circuit 7 and the intermediate circuit 8 are disposed on a board provided in the connector 6, for example.

[0040] As shown in FIG. 2, the output circuit 7 includes a first resistor section 21. The first resistor section 21 is set to a resistance value corresponding to the type of the electric device 90 connected to the connector 6. When the connector 6 is connected to the wiring board 1, the output circuit 7 outputs a resistance value signal corresponding to the resistance value of the first resistor section 21 to the wiring board 1. The output circuit 7 outputs a resistance value signal to the wiring board 1 in response to an instruction signal being input from the wiring board 1. In this embodiment, the instruction signal is a low level signal. The output circuit 7 includes a second resistor section 22 connected in series to the first resistor section 21. The output circuit 7 outputs a voltage obtained by dividing the power supply voltage Vcc by the first resistor section 21 and the second resistor section 22 as a resistance value signal.

[0041] The output circuit 7 includes a detection switch 23. In FIG. 2, the detection switch 23 is an N-channel MOSFET, but may be a switch other than an N-channel MOSFET. A power supply voltage Vcc is applied to a high potential terminal (specifically, the drain) of the detection switch 23. One end of the second resistor section 22 is electrically connected to a low potential terminal (specifically, the source) of the detection switch 23. One end of the first resistor section 21 is electrically connected to the other end of the second resistor section 22. The other end of the first resistor section 21 is electrically connected to ground 95.

[0042] The output circuit 7 includes a resistor section 24 and a capacitor 25. One end of the resistor section 24 is electrically connected to a path between the first resistor section 21 and the second resistor section 22. The other end of the resistor section 24 is electrically connected to one end of the capacitor 25. The other end of the capacitor 25 is electrically connected to the ground 95. The other end of the resistor section 24 is electrically connected to a port P in the control circuit 2 via the electrostatic protection circuit 3 (more specifically, the individual circuit 10). The detection switch 23 is turned on when an on signal (specifically, a high-level signal) is input to an input section (specifically, a gate), and is turned off when an off signal is input to the input section. In response to the input of the instruction signal, the detection switch 23 is switched to the on state, and the output circuit 7 outputs a resistance value signal via the resistor section 24. The resistance value signal is input to the port P. Note that the output circuit 7 does not output a resistance value signal when the detection switch 23 is in an off state.

[0043] The output circuit 7 includes a diode 26. The diode 26 is provided between the input portion of the detection switch 23 and the control circuit 2. The diode 26 prevents current from flowing from the control circuit 2 to the input portion of the detection switch 23. The diode 26 allows current to flow from the input portion of the detection switch 23 to the control circuit 2.

[0044] The output circuit 7 includes resistors 27 and 28 and a capacitor 29. One end of the resistor 27 is electrically connected to a high-potential terminal of the detection switch 23, and a power supply voltage Vcc is applied to the resistor 27. The other end of the resistor 27 is electrically connected to an input of the detection switch 23 and one end of the resistor 28. The other end of the resistor 28 is electrically connected to an anode of the diode 26. The cathode of the diode 26 is electrically connected to one end of the capacitor 29. The other end of the capacitor 29 is electrically connected to the ground 95. The cathode of the diode 26 is electrically connected to a port P in the control circuit 2 via the electrostatic protection circuit 3 (more specifically, the individual circuit 10). When an instruction signal (specifically, a low-level signal) is input to the output circuit 7, a current from a power supply flows to the control circuit 2 side via the resistors 27 and 28 and the diode 26. As a result, a high-level signal is applied to the input of the detection switch 23, and the detection switch 23 is switched to an on state.

[0045] As shown in FIG. 1, the intermediate circuit 8 is provided between the control circuit 2 and the electric device 90. The intermediate circuit 8 outputs a signal to the electric device 90 in response to a signal input from the control circuit 2 side, and outputs a signal to the control circuit 2 in response to a signal input from the electric device 90 side. The intermediate circuit 8 may include an element, or may not include an element. For example, when a switch is connected as the electric device 90, the intermediate circuit 8 may include a switch drive circuit. For example, when an LED is connected as the electric device 90, the intermediate circuit 8 may include an LED drive circuit. The control circuit 2 can control the electric device 90 and receive a signal output from the electric device 90 via the intermediate circuit 8.

[0046] FIG. 3 shows a state in which the connector 6A is connected to the wiring board 1. The switches 91A, 91B, 91C, and the LED 92A are connected to the connector 6A. The connector 6A connects the switches 91A, 91B, 91C, and the LED 92A to the wiring board 1. The connector 6A has an output circuit 7A and an intermediate circuit 8A. The output circuit 7A has a configuration in which the first resistor unit 21 in the output circuit 7 shown in FIG. 2 is replaced with a first resistor unit 21A. The resistance value of the first resistor unit 21A is set to a resistance value corresponding to the type of the electric device 90 (i.e., the switches 91A, 91B, 91C, and the LED 92A). The resistance value of the first resistor unit 21A is, for example, 2 kΩ. The intermediate circuit 8A is a circuit corresponding to the switches 91A, 91B, 91C, and the LED 92A.

[0047] FIG. 4 shows a state in which the connector 6B is connected to the wiring board 1. The LEDs 92A, 92B, 92C, and 92D are connected to the connector 6B. The connector 6B connects the LEDs 92A, 92B, 92C, and 92D to the wiring board 1. The connector 6B has an output circuit 7B and an intermediate circuit 8B. The output circuit 7B has a configuration in which the first resistor unit 21 in the output circuit 7 shown in FIG. 2 is replaced with a first resistor unit 21B. The resistance value of the first resistor unit 21B is set to a resistance value corresponding to the type of the electric device 90 (that is, the LEDs 92A, 92B, 92C, and 92D). The resistance value of the first resistor unit 21B is, for example, 6 kΩ. The intermediate circuit 8B is a circuit corresponding to the LEDs 92A, 92B, 92C, and 92D.

[0048] When a predetermined start condition is met, the control circuit 2 performs the process shown in Fig. 5. The start condition may be receipt of a start instruction from the external ECU 96 (see Fig. 1), or receipt of a start instruction output from the connector 6 when the connector 6 is connected to the wiring board 1, or may be another condition.

[0049] 5 is started, first in step S101, the control circuit 2 outputs an instruction signal from an instruction port P11 (see FIGS. 3 and 4). The instruction signal output from the instruction port P11 is input to the output circuit 7. In response to the input of the instruction signal, the output circuit 7 outputs a resistance value signal according to the first resistor section 21. The resistance value signal is input to a detection port P12 (see FIGS. 3 and 4) of the control circuit 2. In step S102, the control circuit 2 acquires the resistance value signal.

[0050] After acquiring the resistance value signal, the control circuit 2 proceeds to step S103. In step S103, the control circuit 2 performs control corresponding to the resistance value signal output from the output circuit 7. Specifically, the control circuit 2 specifies the resistance value of the first resistor section 21 from the resistance value signal. For example, the control circuit 2 specifies R1 using the following formula (1). Vout=Vcc×R1 / (R1+R2) Formula (1) Vout is the voltage of the resistance value signal. Vcc may be stored in advance in the control circuit 2, or may be a detected value. R2 is stored in advance in the control circuit 2.

[0051] The control circuit 2 may use R1 as the resistance value of the first resistance section 21 as it is, or may use a value corrected based on the resistance value of the resistance section 13, the temperature, and the like as the resistance value of the first resistance section 21.

[0052] The control circuit 2 stores a plurality of control patterns in advance, and performs control according to the control pattern corresponding to the identified resistance value of the first resistor portion 21.

[0053] For example, when the connector 6A shown in FIG. 3 is connected to the wiring board 1, the control circuit 2 specifies the resistance value of the first resistor portion 21 (specifically, the first resistor portion 21A) as 2 kΩ. Then, the control circuit 2 performs control according to a control pattern corresponding to 2 kΩ. The control pattern corresponding to 2 kΩ is included in the control patterns corresponding to 1 kΩ to 2.7 kΩ as shown in FIG. 6. The control pattern corresponding to 1 kΩ to 2.7 kΩ is a control pattern that controls the switches 91A, 91B, 91C, and LED 92A by signals output from ports P1, P2, P3, and P4.

[0054] 4 is connected to the wiring board 1, the control circuit 2 specifies the resistance value of the first resistor portion 21 (specifically, the first resistor portion 21B) as 6 kΩ. Then, the control circuit 2 performs control according to a control pattern corresponding to 6 kΩ. The control pattern corresponding to 6 kΩ is included in the control patterns corresponding to 4.7 kΩ to 6.8 kΩ as shown in FIG. 6. The control pattern corresponding to 4.7 kΩ to 6.8 kΩ is a control pattern that controls the LEDs 92A, 92B, 92C, and 92D by signals output from the ports P1, P2, P3, and P4.

[0055] As described above, the connector 6 is configured so that the resistance value of the first resistor 21 corresponds to the type of the electric device 90, and thus can output information for identifying the type of the electric device 90 to the wiring board 1 as a resistance value signal. According to this configuration, the wiring board 1 can identify the type of the electric device 90 based on the resistance value signal. In other words, the connector 6 can easily realize a configuration in which the type of the electric device 90 connected to the wiring board 1 is identified on the wiring board 1 side, without providing an ECU that notifies information for identifying the type of the electric device 90.

[0056] The connector 6 can cause the output circuit 7 to output a resistance value signal to the wiring board 1 side in response to an instruction signal being input to the output circuit 7. The connector 6 makes it easy to simplify the configuration for outputting the resistance value signal in the output circuit 7.

[0057] The in-vehicle control system 100 can perform control corresponding to the resistance value signal output from the output circuit 7. Therefore, in the in-vehicle control system 100, the resistance value of the first resistor 21 is configured to correspond to the type of the electric device 90, so that the resistance value signal becomes a signal corresponding to the type of the electric device, and the control circuit 2 can perform control according to the type of the electric device 90.

[0058] In the first embodiment, the control circuit 2 performs control according to a control pattern corresponding to the resistance value without identifying the type of the electric device 90, thereby performing control corresponding to the type of the electric device 90 connected to the wiring board 1. In contrast, the control circuit 2 may identify the type of the electric device 90 based on the resistance value signal, and perform control according to the identified type of the electric device 90.

[0059] In the vehicle-mounted control system 100, the electrostatic protection circuit 3 can suppress the current flowing into the control circuit 2 when the connector 6 is connected to the wiring board 1.

[0060] <Second embodiment> In the second embodiment, a configuration in which the connector includes a plurality of first resistors will be described. Note that the same components as those in the first embodiment will be denoted by the same reference numerals and detailed description thereof will be omitted.

[0061] As shown in Fig. 7, the in-vehicle control system 200 of the second embodiment includes a wiring board 1, a control circuit 2, an electrostatic protection circuit 3, and a connector 206. Although omitted in Fig. 7, the in-vehicle control system 200 of the second embodiment includes the board-side connector 5 described in the first embodiment.

[0062] The connector 206 has a plurality of output circuits 7A, 7B and an intermediate circuit 8. The output circuit 7A has a configuration in which the first resistance portion 21 in the output circuit 7 described in the first embodiment is replaced with a first resistance portion 221A. The output circuit 7B has a configuration in which the first resistance portion 21 in the output circuit 7 described in the first embodiment is replaced with a first resistance portion 221B. In this way, the connector 206 includes a plurality of first resistance portions 221A, 221B.

[0063] The output circuits 7A and 7B output resistance value signals corresponding to the resistance values ​​of the first resistor units 221A and 221B when the connector 206 is connected to the wiring board 1. Specifically, the output circuit 7A outputs a resistance value signal corresponding to the resistance value of the first resistor unit 221A in response to an instruction signal being input from the control circuit 2. The output circuit 7B outputs a resistance value signal corresponding to the resistance value of the first resistor unit 221B in response to an instruction signal being input from the control circuit 2.

[0064] The control circuit 2 performs control according to a combination of resistance value information determined from the resistance value signals from the output circuits 7A and 7B. The resistance value information may be any information indicating a resistance value, and may not be the resistance value itself, but may be, for example, the voltage of the resistance value signal. For example, the control circuit 2 determines the resistance value of the first resistor unit 221A based on the resistance value signal from the output circuit 7A, and determines the resistance value of the first resistor unit 221B based on the resistance value signal from the output circuit 7B. Then, the control circuit 2 selects a control pattern according to the combination of the resistance value of the first resistor unit 221A and the resistance value of the first resistor unit 221B, and performs control according to the selected control pattern.

[0065] For example, the control circuit 2 stores a table that specifies the correspondence between the combination of the resistance value of the first resistor unit 221A and the resistance value of the first resistor unit 221B and the control pattern as shown in FIG. 8. When the resistance value of the first resistor unit 221A is 1 kΩ or more and 2.7 kΩ or less, and the resistance value of the first resistor unit 221B is 1 kΩ or more and 2.7 kΩ or less, the control circuit 2 selects the control pattern A. When the resistance value of the first resistor unit 221A is 1 kΩ or more and 2.7 kΩ or less, and the resistance value of the first resistor unit 221B is 4.7 kΩ or more and 6.8 kΩ or less, the control circuit 2 selects the control pattern B. When the resistance value of the first resistor unit 221A is 4.7 kΩ or more and 6.8 kΩ or less, and the resistance value of the first resistor unit 221B is 1 kΩ or more and 2.7 kΩ or less, the control circuit 2 selects the control pattern C. The control circuit 2 selects the control pattern D when the resistance value of the first resistor section 221A is 4.7 kΩ or more and 6.8 kΩ or less, and the resistance value of the first resistor section 221B is 4.7 kΩ or more and 6.8 kΩ or less.

[0066] As described above, the connector 206 can configure information for identifying the type of the electric device 90 by combining the resistance values ​​of the multiple first resistors 221A, 221B. Therefore, the in-vehicle control system 200 can easily realize a configuration that allows many types of electric devices 90 to be identified on the wiring board 1 side.

[0067] The in-vehicle control system 200 is configured so that the combination of resistance values ​​of the multiple first resistors 221A, 221B corresponds to the type of electrical equipment 90, thereby enabling the control circuit 2 to selectively perform control in accordance with many types of electrical equipment 90.

[0068] <Third embodiment> In the third embodiment, a more detailed example of a connection structure between a connector and a board-side connector and a process performed by a control circuit will be described. Note that the same components as those in the first embodiment are given the same reference numerals and detailed description thereof will be omitted.

[0069] Fig. 9 shows the surface of board-side connector 305 on the side where the connectors are connected. Fig. 10 shows a cut surface of connector 306A seen from the rear. Fig. 11 shows a cut surface of connector 306B seen from the rear. Fig. 12 shows a cut surface of connector 306C seen from the rear. Connectors 306A, 306B, and 306C can all be connected to board-side connector 305.

[0070] As shown in FIG. 9, the board-side connector 305 has a first board-side terminal 41, a second board-side terminal 42, and a third board-side terminal 43. A signal for the control circuit 2 to control the electric device 90 or a signal output from the electric device 90 to the control circuit 2 is applied to the third board-side terminal 43. A plurality of the first board-side terminals 41, the second board-side terminals 42, and the third board-side terminals 43 are provided. As shown in FIG. 9, the first board-side terminals 41, the second board-side terminals 42, and the third board-side terminals 43 are repeatedly arranged in the order of the first board-side terminals 41, the second board-side terminals 42, and the third board-side terminals 43 from the left. Two third board-side terminals 43 are arranged in succession. A row in which the first board-side terminals 41, the second board-side terminals 42, and the third board-side terminals 43 are arranged in the left-right direction is provided in a plurality of rows (three rows in FIG. 9) vertically. Furthermore, the board-side connector 305 has a first power supply terminal TV1 and a first ground terminal TG1.

[0071] As shown in FIG. 10, the connector 306A has a first terminal 51 connected to the first board side terminal 41, a second terminal 52 connected to the second board side terminal 42, and a third terminal 53 connected to the third board side terminal 43. As shown in FIG. 13, the connector 306A has an output circuit 307A and an intermediate circuit 308A. The output circuit 307A includes a first resistor unit 321A. In response to an instruction signal input from the first terminal 51, the output circuit 307A outputs a resistance value signal according to the resistance value of the first resistor unit 321A from the second terminal 52. The control circuit 2 acquires the resistance value signal output from the second terminal 52 and performs control according to this resistance value signal. For example, the control circuit 2 controls the switch 391A by outputting a control signal from the port P1. The control circuit 2 controls the switch 391B by outputting a control signal from the port P2.

[0072] As shown in FIG. 11, the connector 306B has a first terminal 51 connected to the first board side terminal 41, a second terminal 52 connected to the second board side terminal 42, and a third terminal 53 connected to the third board side terminal 43. As shown in FIG. 14, the connector 306B has an output circuit 307B and an intermediate circuit 308B. The output circuit 307B includes a first resistor unit 321B. In response to an instruction signal input from the first terminal 51, the output circuit 307B outputs a resistance value signal corresponding to the resistance value of the first resistor unit 321B from the second terminal 52. The control circuit 2 acquires the resistance value signal output from the second terminal 52 and performs control according to this resistance value signal. For example, the control circuit 2 receives a signal output from the state monitor 392A at a port P1. The control circuit 2 controls the LED 392B by outputting a control signal from a port P2. The control circuit 2 receives a signal output from the sensor 392C at a port P3. The control circuit 2 receives a signal output from the sensor 392D at a port P4. The state monitor 392A outputs a signal indicating, for example, an on / off state of the indicator. The sensors 392C and 392D detect, for example, a vehicle traveling diagonally behind the vehicle. For example, when the indicator is in an on state and a vehicle traveling diagonally behind the vehicle is detected, the control circuit 2 turns on the LED 392B to warn the driver. The connector 306B also has a fourth terminal 57 connected to a first board side terminal 41 other than the first board side terminal 41 to which the first terminal 51 is connected, and a fifth terminal 58 connected to a second board side terminal 42 other than the second board side terminal 42 to which the second terminal 52 is connected.

[0073] As shown in FIG. 12, the connector 306C has a first terminal 51 connected to the first board side terminal 41, a second terminal 52 connected to the second board side terminal 42, and a third terminal 53 connected to the third board side terminal 43. As shown in FIG. 15, the connector 306C has an output circuit 307C and an intermediate circuit 308C. The output circuit 307C includes a first resistor 321C. In response to an instruction signal input from the first terminal 51, the output circuit 307C outputs a resistance value signal corresponding to the resistance value of the first resistor 321C from the second terminal 52. The control circuit 2 acquires the resistance value signal output from the second terminal 52 and performs control according to this resistance value signal. For example, the control circuit 2 receives a signal output from the state monitor 393A at a port P1. The control circuit 2 receives a signal output from the sensor 393B at a port P2. The control circuit 2 receives the signal output from the sensor 393C at the port P3. The control circuit 2 controls the headlamp washer 393D by outputting a control signal from the port P4. The state monitor 393A outputs a signal indicating, for example, the on / off state of the headlamp. The sensors 393C and 393D are configured, for example, as reflective optical sensors and detect the transmittance of the headlamp, that is, the dirt on the headlamp. For example, when the control circuit 2 detects dirt on the headlamp while the headlamp is on, it controls the headlamp washer 393D to clean the headlamp.

[0074] Each of the connectors 306A, 306B, and 306C has a second power terminal TV2 and a second ground terminal TG2. The second power terminal TV2 is electrically connected to the first power terminal TV1 of the board-side connector 305. The second ground terminal TG2 is electrically connected to the first ground terminal TG1 of the board-side connector 305.

[0075] 9, the board-side connector 305 has a first port CP1, a second port CP2, and a third port CP3. The first port CP1 is provided corresponding to each of the first board-side terminals 41. The second port CP2 is provided corresponding to each of the second board-side terminals 42. The third port CP3 is provided corresponding to each of the third board-side terminals 43. The first port CP1 is recessed in a shape combining an upwardly convex triangular shape and a downwardly convex triangular shape. The second port CP2 and the third port CP3 are recessed in an upwardly convex triangular shape.

[0076] The connectors 306A, 306B, and 306C each have a first fitting portion 54 including a first terminal 51, a second fitting portion 55 including a second terminal 52, and a third fitting portion 56 including a third terminal 53. The first fitting portion 54 protrudes in a shape that combines an upwardly convex triangular shape and a downwardly convex triangular shape. The second fitting portion 55 and the third fitting portion 56 protrude in an upwardly convex triangular shape. The connector 306B also has a fourth fitting portion 59 including a fourth terminal 57, and a fifth fitting portion 60 including a fifth terminal 58. The fourth fitting portion 59 and the fifth fitting portion 60 protrude in an upwardly convex triangular shape.

[0077] The first port CP1 can be fitted with any of the first fitting portion 54, the second fitting portion 55, the third fitting portion 56, the fourth fitting portion 59, and the fifth fitting portion 60. The openings of the second port CP2 and the third port CP3 physically interfere with the first fitting portion 54. For this reason, the first fitting portion 54 cannot be fitted with the second port CP2 and the third port CP3. In other words, the second port CP2 and the third port CP3 can be fitted with only the second fitting portion 55 and the third fitting portion 56 out of the first fitting portion 54, the second fitting portion 55, and the third fitting portion 56. In all of the connectors 306A, 306B, and 306C, the first fitting portion 54 needs to be fitted with the first port CP1. A first terminal 51 is connected to the first substrate side terminal 41, a second terminal 52 is connected to the second substrate side terminal 42, and a third terminal 53 is connected to the third substrate side terminal 43.

[0078] However, the connectors 306B and 306C are configured to be connected to a plurality of first board side terminals 41 at the same time. For this reason, the control circuit 2 needs to identify which first board side terminal 41 to output the instruction signal to. Therefore, the control circuit 2 performs a detection process for each of the first board side terminals 41 in a predetermined order. Here, the detection process is a process of inputting an instruction signal to the first board side terminal 41 and receiving a resistance value signal output from the second board side terminal 42 corresponding to the first board side terminal 41. The plurality of first ports CP1 are numbered in the order from the upper left to the right and from the upper row to the lower row. For example, the upper left first port CP1 is defined as No. 1, the first port CP1 to the right of it is defined as No. 2, and the first port CP1 to the right of it is defined as No. 3. The first port CP1 in the middle left row is defined as No. 4. The above-mentioned predetermined order is the order of the numbers.

[0079] The control circuit 2 performs, for example, the process shown in Fig. 16. Note that, here, an example of the operation when the connectors 306B and 306C are connected to the board side connector 305 at the positions shown in Fig. 17 will be described.

[0080] The control circuit 2 starts the process shown in FIG. 16 when the start condition described in the first embodiment is satisfied. In step S101, the control circuit 2 sets i to 1. Then, in step S102, the control circuit 2 judges whether i is greater than N or not. N is the number of first ports CP1. In this embodiment, N is 9. When the control circuit 2 judges that i is not greater than N, it judges whether the detection flag of the first port CP1 of No. i is 1 or not. The detection flag is set for each No., and is set to 0 for all Nos. at the start or end of the process of FIG. 17. Therefore, the control circuit 2 judges that the detection flag of the first port CP1 of No. 1 is 0, and proceeds to step S304. In step S304, the control circuit 2 outputs an instruction signal from the first port CP1. When the instruction signal is input from the first port CP1 of No. 1, the output circuit 307B of the connector 306B outputs a resistance value signal. In step S305, the control circuit 2 acquires a resistance value signal from the second port CP2. In step S306, the control circuit 2 selects a control pattern according to the acquired resistance value signal. In step S307, the control circuit 2 specifies the type of connector connected to the No. 1 first port CP1 based on the resistance value signal. The control circuit 2 determines whether the connector is also connected to the No. i+1 or later first port CP1 from the type of connector. The control circuit 2 sets the detection flag of the No. of the first port CP1 to which the control circuit 2 determines that the connector is connected to 1. In this embodiment, the control circuit 2 determines that the connector 306B is connected to the No. 1 first port CP1, and determines that the connector 306B is also connected to the No. 2 first port CP1. In addition, the control circuit 2 sets the detection flag of the No. 2 first port CP1 to 1.

[0081] After step S307, the control circuit 2 adds 1 to i in step S308. As a result, i becomes 2. After step S308, the control circuit 2 returns to step S302. The control circuit 2 determines No in step S302 and proceeds to step S303. Since the detection flag of No. 2 first port CP1 is set to 1, the control circuit 2 determines No in step S303 and proceeds to step S308. In this way, the control circuit 2 identifies the type of connector from the resistance value signal, and when it is determined that the identified connector is connected to another first board side terminal, it omits the detection process for the other first board side terminal 41.

[0082] In step S308, i becomes 3. The control circuit 2 judges No in step S302 and proceeds to step S303. Since the detection flag of the first port CP1 of No. 3 is set to 0, the control circuit 2 judges Yes in step S303 and proceeds to step S304. In step S304, the control circuit 2 outputs an instruction signal from the first port CP1 of No. 3. When the instruction signal is input from the first port CP1 of No. 3, the output circuit 307C of the connector 306C outputs a resistance value signal. In step S305, the control circuit 2 acquires the resistance value signal from the second port CP2. Then, in step S306, the control circuit 2 selects a control pattern according to the acquired resistance value signal. In step S307, the control circuit 2 determines that the connector 306C is connected to the first port CP1 of No. 3, and also determines that the connector 306C is connected to the first port CP1 of No. 6. Then, the control circuit 2 sets the detection flag of the first port CP1 No. 6 to 1.

[0083] Thereafter, the control circuit 2 repeats the processes of steps S302 to S308 until N becomes 10. When N becomes 10, the control circuit 2 determines No in step S302 and ends the process shown in FIG.

[0084] The in-vehicle control system 300 of the third embodiment can realize control of the electric device 90 by the control circuit 2 or acquisition of a signal from the electric device 90 by the control circuit 2 via the third terminal 53 and the third board-side terminal 43. Furthermore, the in-vehicle control system 300 of the third embodiment can realize a configuration in which an instruction signal is input to the output circuits 307A, 307B, 307C and a resistance value signal is output from the output circuits 307A, 307B, 307C, using the first terminal 51 and the second terminals 52, 52B, 52C.

[0085] The in-vehicle control system 300 of the third embodiment prevents the first fitting portion 54 from erroneously fitting into the second port CP2 or the third port CP3, thereby enabling the first terminal 51 to be more reliably connected to the first board-side terminal 41. Furthermore, in the in-vehicle control system 300 of the third embodiment, the first port CP1 can be fitted with any of the first fitting portion 54, the second fitting portion 55, and the third fitting portion 56, so that some of the multiple first ports CP1 can be used for inputting resistance value signals, controlling the electric device 90, and the like.

[0086] The in-vehicle control system 300 of the third embodiment performs the detection process in a predetermined order, and can identify the first board-side terminal 41 to which the instruction signal should be output, even when the same connector is connected to a plurality of first board-side terminals 41. The in-vehicle control system 300 of the third embodiment can omit the detection process for the first board-side terminal 41 to which it is not necessary to output an instruction signal.

[0087] [Another embodiment of the present disclosure] The embodiments disclosed herein should be considered as illustrative in all respects and not restrictive. (1) In the above first and second embodiments, the first resistance portion is configured to be positioned closer to the ground than the second resistance portion. However, the second resistance portion may be configured to be positioned closer to the ground than the first resistance portion. (2) In the above first and second embodiments, the other end of the first resistor portion is electrically connected to ground within the connector. However, the other end of the first resistor portion may be connected to a wiring board via a conductive path and electrically connected to ground on the wiring board. (3) In the above embodiments, the control circuit switches the control pattern of an electrical device connected to a wiring board by a connector as a method for performing control corresponding to a resistance value signal. However, other methods may be adopted. For example, an in-vehicle control system may be configured such that the control circuit identifies a control pattern corresponding to a resistance value signal, outputs a signal indicating the identified control pattern to an external ECU, and causes the external ECU to perform control according to the control pattern. In this case, the configuration in which "the control circuit identifies a control pattern corresponding to a resistance value signal, and outputs a signal indicating the identified control pattern to an external ECU" corresponds to "the configuration in which the control circuit performs control corresponding to a resistance value signal." [Explanation of symbols]

[0088] 1...Wiring board 2. Control circuit 3. Electrostatic protection circuit 5…Board side connector 6…Connector 6A…Connector 6B…Connector 7. Output circuit 7A…Output circuit 7B…Output circuit 8…Intermediate circuit 8A…Intermediate circuit 8B…Intermediate circuit 10…Individual circuit 11...Resistance section 12…Capacitor 13...Resistance part 21...1st resistance section 21A…1st resistance section 21B...1st resistance section 22…Second resistance section 23…Detection switch 24...Resistance part 25…Capacitor 26…Diode 27...Resistance section 28...Resistance section 29…Capacitor 41...First board side terminal 42...Second board side terminal 43…Third board side terminal 51...1st terminal 52...2nd terminal 53…3rd terminal 54…First fitting portion 55…Second fitting part 56…Third fitting part 57…4th terminal 58...5th terminal 59…Fourth fitting part 60...5th fitting part 90...Electrical equipment 91A…Switch 91B…Switch 91C…Switch 92A…LED 92B…LED 92C…LED 92D…LED 95…Ground 96...External ECU 100...In-vehicle control system 200…In-vehicle control system 206…Connector 221A…1st resistance section 221B...1st resistance section 300…In-vehicle control system 305...Board side connector 306A…Connector 306B…Connector 306C…Connector 307A…Output circuit 307B…Output circuit 307C…Output circuit 308A…Intermediate circuit 308B…Intermediate circuit 308C…Intermediate circuit 321A…1st resistance section 321B...1st resistance section 321C...1st resistance section 391A…Switch 391B…Switch 392A…Status monitoring device 392B…LED 392C…Sensor 392D…Sensor 393A…Status monitoring device 393B…Sensor 393C…Sensor 393D…Headlamp washer CP1: First port CP2: Second port CP3: Third port P…Port P1…Port P2…Port P3…Port P4…Port P11…Instruction port P12…Detection port TG1: First ground terminal TG2: Second ground terminal TV1…1st power supply terminal TG2…Second power supply terminal

Claims

1. A connector for connecting an electrical device to a wiring board, an output circuit including a first resistor section; The output circuit outputs a resistance value signal corresponding to a resistance value of the first resistor portion to the wiring board when the connector is connected to the wiring board. connector.

2. The output circuit outputs the resistance value signal to the wiring board in response to an instruction signal being input from the wiring board. The connector of claim 1 .

3. The output circuit includes a second resistor section connected in series to the first resistor section, and outputs a voltage obtained by dividing a predetermined voltage by the first resistor section and the second resistor section as the resistance value signal. The connector according to claim 1 or 2.

4. The connector has a plurality of the first resistors, The output circuit outputs the resistance value signal corresponding to the resistance value of each of the first resistors when the connector is connected to the wiring board. The connector according to claim 1 or 2.

5. The connector according to claim 1 or 2, A wiring board; A control circuit is provided on the wiring board, The control circuit performs control corresponding to the resistance value signal output from the output circuit. In-vehicle control systems.

6. The connector has a plurality of the first resistors, the output circuit outputs the resistance value signal corresponding to the resistance value of each of the first resistor sections when the connector is connected to the wiring board; The control circuit performs control according to a combination of resistance value information specified from each of the resistance value signals. The vehicle control system according to claim 5 .

7. an electrostatic protection circuit provided between the connector connected to the wiring board and the control circuit; The vehicle control system according to claim 5 .

8. a board-side connector that is installed on the wiring board and to which the connector is connected; the board-side connector has a first board-side terminal, a second board-side terminal, and a third board-side terminal to which a signal for the control circuit to control the electric device or a signal output from the electric device to the control circuit is applied, the connector has a first terminal connected to the first board-side terminal, a second terminal connected to the second board-side terminal, and a third terminal connected to the third board-side terminal, The output circuit outputs the resistance value signal from the second terminal in response to an instruction signal being input from the first terminal. The vehicle control system according to claim 5 .

9. the board-side connector has a plurality of the first board-side terminals, second board-side terminals corresponding to each of the first board-side terminals, a plurality of the third board-side terminals, a first port corresponding to each of the first board-side terminals, a second port corresponding to each of the second board-side terminals, and a third port corresponding to each of the third board-side terminals; the connector has a first fitting portion including the first terminal, a second fitting portion including the second terminal, and a third fitting portion including the third terminal, the second port and the third port are capable of being fitted with only the second fitting portion and the third fitting portion among the first fitting portion, the second fitting portion, and the third fitting portion, The first port is capable of fitting with any of the first fitting portion, the second fitting portion, and the third fitting portion. The vehicle control system according to claim 8.

10. the board-side connector has a plurality of the first board-side terminals and second board-side terminals corresponding to each of the first board-side terminals, The control circuit includes: a detection process is performed by inputting the instruction signal to the first substrate-side terminal and receiving the resistance value signal output from a second substrate-side terminal corresponding to the first substrate-side terminal, performing the detection process for each of the first substrate side terminals in a predetermined order; The type of the connector is identified from the resistance value signal, and when it is determined that the identified connector is connected to another of the first board side terminals, the detection process for the other of the first board side terminals is omitted. The vehicle control system according to claim 8.

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