WO2011052608A1 - ワイヤハーネス、及び、電子機器制御システム - Google Patents
ワイヤハーネス、及び、電子機器制御システム Download PDFInfo
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- WO2011052608A1 WO2011052608A1 PCT/JP2010/069002 JP2010069002W WO2011052608A1 WO 2011052608 A1 WO2011052608 A1 WO 2011052608A1 JP 2010069002 W JP2010069002 W JP 2010069002W WO 2011052608 A1 WO2011052608 A1 WO 2011052608A1
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- electronic device
- standard
- electronic
- option
- optional
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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
Definitions
- the present invention relates to a wire harness that connects a plurality of electronic devices mounted on a vehicle and an electronic control unit that controls these electronic devices in a communicable manner, and an electronic device control system having such a wire harness. .
- Vehicles such as passenger cars and freight cars are equipped with a wide variety of electronic devices such as air conditioners, wipers, and power windows. These electronic devices are electrically connected to an electronic control unit (ECU: Electronic Control Unit) constituted by a computer or the like via a wire harness, and between these electronic devices and the ECU via this wire harness. Power and control signals are transmitted.
- ECU Electronic Control Unit
- Such a wire harness includes a plurality of electric wires and a connector that accommodates terminal fittings connected to the ends of the electric wires.
- an ECU includes an input / output unit for each electronic device connected to the ECU, and a dedicated connection circuit (that is, an electric wire) is required for each electronic device. Therefore, as the number of electronic devices controlled by the ECU increases. Therefore, the number of circuits (ie, the number of electric wires) of the wire harness connecting the ECU and the electronic device is increased, which causes problems such as an increase in the cost of the wire harness, a decrease in the wiring property, and an increase in weight.
- a standard vehicle that is, an electronic device that must be mounted on a vehicle
- electronic devices that are mounted as optional equipment that is, a vehicle
- the number of types of harness increased and the cost further increased.
- the wire harness provided in the electronic device control system disclosed in Patent Literature 1 is provided with a relay connector unit having a communication control function that relays communication between a plurality of electronic devices and the ECU.
- the relay connector unit includes a plurality of circuits (terminals) to which electronic devices are connected, and is connected to the circuit indicated by the circuit identification data with reference to circuit identification data included in information received from the ECU. The information is transmitted to the electronic device, and circuit identification data indicating the circuit to which the electronic device is connected is added to the information received from the electronic device, and the information is transmitted to the ECU.
- the relay connector unit having the communication control function is provided in the wire harness and the ECU and the plurality of electronic devices are connected via the relay connector unit, the communication between the ECU and the plurality of electronic devices can be performed. Therefore, the ECU and the plurality of electronic devices can be connected using a common circuit, and the number of circuits of the wire harness can be reduced. Further, when the combination of electronic devices to be mounted (that is, the combination of optional electronic devices) is changed, only the connection circuit of the wire harness that connects between the optional electronic device and the relay connector unit may be changed. Therefore, even when the combination of the optional electronic devices is changed, it can be used in common without changing the circuit of the wire harness that connects between the ECU and the relay connector unit. In this way, problems such as the above-described increase in the cost of the wire harness, a decrease in the wiring property, and an increase in the weight could be solved.
- the present invention aims to solve the problems related to the above problems. That is, the present invention can standardize the function of the electronic control unit, and can be used in common without changing the circuit even when the combination of a plurality of electronic devices mounted on the vehicle is changed, And it aims at providing the electronic device control system which has the said wire harness.
- a wire harness for communicably connecting a plurality of electronic devices mounted on a vehicle and an electronic control unit that controls these electronic devices.
- a standard connection circuit unit that connects the electronic control unit to a standard electronic device that must be mounted on the vehicle among the plurality of electronic devices, and optional mounting on the vehicle among the plurality of electronic devices.
- An optional connection circuit unit that connects the optional electronic device and the electronic control unit, and the optional connection circuit unit is provided so that one or a plurality of the optional electronic devices can be connected, and
- a connection circuit for connecting a communication connector to the electronic control unit, and the communication connector is connected to the communication connector.
- the standard connection circuit unit that connects the standard electronic device and the electronic control unit and the option connection circuit unit that connects the option electronic device and the electronic control unit are separately provided.
- the option connection circuit unit includes a communication connector provided so that one or a plurality of option electronic devices can be connected, and a connection circuit for connecting the communication connector to the electronic control unit.
- the communication connector performs multiplex communication with the electronic control unit via the connection circuit to multiplex communication between the plurality of option electronic devices connected to the communication connector and the electronic control unit.
- a plurality of electronic devices mounted on a vehicle, an electronic control unit that controls the plurality of electronic devices, the plurality of electronic devices, and the An electronic device control system comprising: a wire harness that is communicably connected to an electronic control unit, wherein the wire harness includes the wire harness of the first invention, and the electronic control unit includes the standard electronic device.
- Standard electronic equipment control means for controlling, and optional electronic equipment control means for controlling the optional electronic equipment, the standard electronic equipment control means is connected to the standard electronic equipment by the standard connection circuit unit,
- an electronic device control system in which optional electronic device control means is connected to the optional electronic device by the optional connection circuit unit It is.
- the standard electronic device control means of the electronic control unit is connected to the standard electronic device by the standard connection circuit portion of the wire harness, and the optional electronic device control means of the electronic control unit is connected to the wire harness.
- the optional connection circuit unit is connected to optional electronic equipment.
- the standard connection circuit unit that connects the standard electronic device and the electronic control unit and the option connection circuit unit that connects the option electronic device and the electronic control unit are separately provided. Therefore, in the electronic control unit to which this wire harness is connected, control means for controlling standard electronic equipment (standard electronic equipment control means), control means for controlling optional electronic equipment (optional electronic equipment control means), Therefore, even when the combination of a plurality of electronic devices mounted on the vehicle is changed, only the control means for controlling the optional electronic devices in the electronic control unit needs to be changed. Control means (that is, function) for controlling electronic equipment can be standardized, improving designability and productivity, Strike can be reduced.
- the option connection circuit unit includes a communication connector provided so that one or a plurality of option electronic devices can be connected, and a connection circuit for connecting the communication connector to the electronic control unit, and the communication connector.
- the multiplex communication for multiplexing the communication between the plurality of option electronic devices connected to the communication connector and the electronic control unit is performed with the electronic control unit via the connection circuit, the plurality of option electronic devices and the electronic control unit are performed.
- the standard electronic device control means of the electronic control unit is connected to the standard electronic device by the standard connection circuit portion of the wire harness, and the optional electronic device control means of the electronic control unit is connected to the wire harness. Since the optional connection circuit unit is connected to the optional electronic device, the control means for controlling the standard electronic device and the optional electronic device can be provided separately. Therefore, the standard electronic device control for controlling the standard electronic device can be provided. Means can be standardized. In addition, since the communication connector of the wire harness and the electronic control unit are connected by multiplex communication via the connection circuit, even when the combination of electronic devices mounted on the vehicle is changed, the wire harness (that is, The standard connection circuit unit and the optional connection circuit unit) can be used in common without changing. Therefore, designability and productivity are improved, and costs can be reduced.
- the electronic device control system 1 is mounted on a vehicle (not shown).
- the electronic device control system 1 includes a standard electronic device unit 11, an optional electronic device unit 12, an electronic control unit (ECU) 20, and a wire harness 30.
- the electronic device control system 1 is configured such that a plurality of electronic devices 10 that are provided in the standard electronic device unit 11 and the optional electronic device unit 12 and are arranged in a scattered manner in the vehicle can communicate with the ECU 20 by the wire harness 30. This is a system for connecting and controlling a plurality of electronic devices 10 by the ECU 20.
- the plurality of electronic devices 10 are various devices controlled by the ECU 20, and are classified into a standard electronic device 10a that must be mounted on a vehicle and an optional electronic device 10b that can be mounted on the vehicle.
- Examples of the standard electronic device 10a include a door switch, a door lock status switch, a door key control unit, and a power window.
- Examples of the optional electronic device 10b include a door mirror opening / closing device, a door mirror angle adjusting device, a door mirror anti-fogging device, and the like. These are listed by way of example of the electronic device 10 disposed in the vicinity of the door of the vehicle. Of course, various electronic devices 10 other than these are mounted on the vehicle.
- Each electronic device 10 includes an operation unit (not shown) such as a switch and an actuator, and a control unit (not shown) that acquires an open / closed state of the switch and controls driving of the actuator.
- the standard electronic device unit 11 includes a plurality of the standard electronic devices 10a, a connection connector 13, and a plurality of cables 15.
- the connection connector 13 is a so-called female connector including a plurality of female terminal fittings and a housing that accommodates the terminal fittings.
- One end of each of the plurality of cables 15 is connected to the control unit of each standard electronic device 10a, and the other end is connected to a terminal fitting of the connection connector 13 assigned in advance to each standard electronic device 10a.
- the connection connector 13 is fitted with a standard electronic device connection connector 36 described later.
- the optional electronic device unit 12 includes a plurality of the optional electronic devices 10b, a connection connector 14, and a plurality of cables 16.
- the connection connector 14 is a so-called female connector including a plurality of female terminal fittings and a housing that accommodates the terminal fittings.
- One end of each of the plurality of cables 16 is connected to the control unit of each option electronic device 10b, and the other end is connected to a terminal fitting of the connection connector 14 assigned in advance to each option electronic device 10b.
- the connection connector 14 is fitted with an optional electronic device connection connector 50 (communication connector) described later.
- the ECU 20 includes a box-shaped case (not shown) and a microprocessor (MPU) 21 that is accommodated in the case and operates according to a predetermined program.
- the MPU 21 is a central processing unit (CPU) 22 that performs various types of processing and control according to a predetermined program, and a ROM 23 that is a read-only memory that stores processing programs for the CPU 22 and various types of information.
- a RAM 24 which is a readable / writable memory that stores various data and has an area necessary for processing operations of the CPU 22.
- a processing program that causes the CPU 22 to function as a standard electronic device control unit that controls the standard electronic device 10a and a processing program that functions as an optional electronic device control unit that controls the optional electronic device 10b are independent of each other.
- the CPU 22 functions as standard electronic device control means and optional electronic device control means by executing these processing programs.
- the ECU20 has the external connection part 25 further.
- the external connection unit 25 is connected to the CPU 22 (that is, standard electronic device control means), and is connected to the standard electronic device for one-to-one communication, and the CPU 22 (that is, optional electronic device control). And a second communication interface corresponding to a predetermined communication protocol (for example, LIN (Local Interconnect Network), etc.) for performing multiplex communication with the optional electronic device.
- the external connection unit 25 is provided with a plurality of male terminals 25a connected to these communication interfaces.
- the wire harness 30 includes a standard connection circuit unit 31, an option connection circuit unit 32, and an ECU connection connector 35.
- the standard connection circuit unit 31 is a circuit that connects the ECU 20 with the standard electronic device 10a that must be mounted on the vehicle among the plurality of electronic devices 10 mounted on the vehicle so that one-to-one communication is possible. Part.
- the standard connection circuit unit 31 includes a standard circuit 311 and a standard electronic device connection connector 36 provided in one terminal 311a of the standard circuit 311.
- Standard circuit 311 is composed of a plurality of electric wires.
- the plurality of electric wires are so-called covered electric wires each having a conductive core wire and an insulating covering portion that covers the core wire.
- the standard circuit 311 has a connection circuit corresponding to each of the standard electronic devices 10 a connected via the standard electronic device connection connector 36. That is, the standard circuit 311 is provided with a dedicated connection circuit including a control signal line and a power supply line necessary for connection for each standard electronic device 10a.
- the standard electronic device connector 36 is a so-called normal male connector composed of a male terminal fitting connected to one terminal 311a of the standard circuit 311 and a housing for housing the terminal fitting.
- the standard electronic device connection connector 36 is fitted with a female connection connector 13 provided in the standard electronic device unit 11, so that a male terminal fitting provided in the standard electronic device connection connector 36 and a female provided in the connection connector 13 are provided.
- the mold terminal fitting is electrically connected.
- the option connection circuit unit 32 is a circuit unit that connects the optional electronic device 10b that is arbitrarily mounted on the vehicle among the plurality of electronic devices 10 mounted on the vehicle, and the ECU 20 so that multiplex communication is possible. is there.
- multiplex communication that is, communication multiplexing
- the option connection circuit unit 32 includes an option circuit 321 and an option electronic device connection connector (hereinafter referred to as “communication connector”) 50 provided in one terminal 321a of the option circuit 321 and incorporating a communication function. ing.
- the option circuit 321 includes a plurality of electric wires similar to the standard circuit 311.
- the option circuit 321 is a connection circuit that connects the communication connector 50 and the ECU 20, and includes a control signal line and a power supply line that are necessary for communication performed between them.
- a known LIN is adopted as a protocol for communication performed between the communication connector 50 and the ECU 20, and the option circuit 321 is provided with a control signal line required for these communication protocols.
- CAN Controller Area Network
- the communication connector 50 includes an outer housing 55 and a control circuit package 56 accommodated in the outer housing 55, as shown in FIG.
- the outer housing 55 is formed in a flat box shape using an insulating synthetic resin, and integrally includes a cylindrical hood portion 60 and a control circuit package housing chamber 61 connected to the hood portion 60. ing.
- the control circuit package 56 is housed in the control circuit package housing chamber 61 of the outer housing 55, and includes a plurality of press contact terminals 70, a plurality of male tabs 71, and a resin sealing body 68.
- the plurality of press contact terminals 70 are formed in a shape obtained by bending a flat plate into a substantially L shape, one end is electrically connected to a lead frame included in the resin sealing body 68, and the other end faces upward in FIG. Thus, they are arranged in parallel with each other.
- the other end of the press contact terminal 70 is provided with a pair of press contact blades facing each other in the width direction, and each electric wire constituting the optional circuit 321 is pressed and pressed between the pair of press contact blades.
- the press contact terminal 70 and the option circuit 321 are electrically connected.
- the plurality of male tabs 71 are formed in a bar shape extending in a straight line, and are arranged in parallel and in a row at intervals.
- the plurality of male tabs 71 are provided with a number corresponding to the maximum number of option electronic devices 10b that are assumed to be connected. When the number of option electronic devices 10b to be connected is less than the maximum number, the male tab 71 corresponding to the option electronic device 10b not mounted on the vehicle becomes empty (a state in which nothing is connected).
- a plurality of male tabs 71 are grouped for each option electronic device 10b connected thereto, and different circuit identification data are assigned in advance to each group of the male tabs 71 separated. .
- each of the plurality of male tabs 71 is electrically connected to a lead frame included in the resin sealing body 68, and the other end thereof is disposed in the hood portion 60 so as to face the opening of the hood portion 60.
- the plurality of male tabs 71 are electrically connected to female terminal fittings (not shown) of the connection connector 14 when the connection connector 14 included in the optional electronic device unit 12 is fitted to the hood portion 60.
- the resin sealing body 68 seals the lead frame (not shown), the IC chip (not shown) attached to the lead frame, and the lead frame and IC chip formed in a flat rectangular parallelepiped shape made of synthetic resin. And a main body 68a.
- the lead frame and the IC chip are electrically connected to each other by a known bonding wire. That is, the IC chip and the plurality of press contact terminals 70 are electrically connected, and the IC chip and the plurality of male tabs 71 are electrically connected.
- the resin sealing body 68 is disposed between the plurality of press contact terminals 70 and the plurality of male tabs 71.
- the IC chip is a well-known microcomputer, and includes a central processing unit (CPU), a ROM that is a read-only memory, and a RAM that is a readable / rewritable memory.
- the CPU manages various controls in the communication connector 50, executes various processes such as communication processes and communication multiplexing processes according to various processing programs stored in the ROM, and performs various processes such as communication means and communication multiplexing means. Functions as a means.
- the ROM stores various information such as the processing program and a unique communication address preset in the communication connector 50.
- the communication connector 50 can communicate with a communication function for communicating with the ECU 20 via the option circuit 321 and the plurality of option electronic devices 10b and the ECU 20 using the option circuit 321 in common. And a communication multiplexing function for connecting to the network. That is, the communication connector 50 performs electronic communication via the option circuit 321 (that is, the connection circuit) for multiplexing communication that multiplexes communication between the plurality of option electronic devices 10b connected to the communication connector 50 and the electronic control unit 20.
- Communication control means ie, communication means and communication multiplexing means for performing control with the control unit 20 is provided.
- the IC chip receives (1) control information (hereinafter referred to as “first information”) from the ECU 20 via the option circuit 321 and the plurality of press contact terminals 70, and an address included in the first information. (2) If this address data does not indicate its own communication address, the first information is discarded, or (3) this address data indicates its own communication address. In some cases, (4) the first information is output from the set of male tabs 71 indicated by the circuit identification data further included in the first information, and is sent to the option electronic device 10b connected to the set of male tabs 71. Send.
- first information control information
- the IC chip receives (5) control information (hereinafter referred to as “second information”) from the option electronic device 10b via the male tab 71, and (6) the second information includes the second information.
- second information includes the second information.
- the above (1) to (3) and (7) correspond to the communication function provided in the communication connector 50, and the above (4) to (6) correspond to the communication multiplexing function.
- this communication function also corresponds to a communication multiplexing function (that is, a plurality of communications between the plurality of communication connectors 50 and the ECU 20 are multiplexed). ).
- the communication connector 50 transmits the first information received from the ECU 20 to the option electronic device 10b corresponding to the identification data (that is, circuit identification data) included in the first information, and from the option electronic device 10b.
- the received second information is added with identification data (that is, circuit identification data) corresponding to the optional electronic device 10b, and then transmitted to the ECU 20.
- the plurality of electric wires constituting the standard circuit 311 and the optional circuit 321 described above are bundled by restraining members (not shown) such as a plurality of bands and tapes installed at intervals along the longitudinal direction of the electric wires.
- the plurality of electric wires may be bundled through a known corrugated tube.
- each electric wire is divided into a plurality of sections, and a relay connector 38 is provided at the end of each section other than both ends of each electric wire.
- a plurality of sections of each electric wire are connected to each other by fitting to constitute a continuous standard circuit 311 and an optional circuit 321.
- the standard circuit 311 and the optional circuit 321 may be configured using one continuous electric wire instead of the electric wires divided into a plurality of sections.
- the structure which each electric wire branched in the middle may be sufficient, and the structure is arbitrary unless it is contrary to the objective of this invention.
- the standard circuit 311 and the option circuit 321 need only be logically separated.
- the standard circuit 311 and the option circuit 321 need not be physically separated, for example, bundled separately. .
- the ECU connection connector 35 is a so-called female-type connector provided with a female terminal fitting provided on the other terminal 311b of the standard circuit 311 and the other terminal 321b of the option circuit 321 and a housing for housing the terminal fitting. It is a connector.
- the female terminal fitting connected to the standard circuit 311 is electrically connected to the one connected to the first communication interface among the plurality of male terminals 25a.
- the female terminal fitting connected to the option circuit 321 is electrically connected to the plurality of male terminals 25a connected to the second communication interface.
- the CPU 22 of the ECU 20 (that is, standard electronic device control means) is connected to the standard electronic device 10a via the standard connection circuit unit 31 so as to be capable of one-to-one communication, and the CPU 22 (that is, optional electronic device control). Is connected to the option electronic device 10b via the option connection circuit unit 32 so as to be capable of multiplex communication.
- FIG. 3 shows a functional block diagram of the electronic device control system 1.
- the ECU 20 includes a standard electronic device control unit 22 a configured by the CPU 22 and an option electronic device control unit 22 b configured by the CPU 22. These standard electronic device control means 22a and optional electronic device control means 22b are provided logically independently. Specifically, a processing program used for controlling the standard electronic device 10a executed by the CPU 22 and a processing program used for controlling the optional electronic device 10b executed by the CPU 22 are stored separately and separately.
- the CPU 22 functions as standard electronic device control means 22a and optional electronic device control means 22b by executing these processing programs.
- the standard electronic device control means 22a is connected to each standard electronic device 10a on a one-to-one basis by a dedicated connection circuit provided corresponding to each standard electronic device 10a in the standard circuit 311 of the standard connection circuit unit 31. .
- the standard electronic device control means 22a When transmitting the control information to the standard electronic device 10a to be controlled, the standard electronic device control means 22a transmits the control information through a connection circuit corresponding to the standard electronic device 10a.
- the standard electronic device control means 22a recognizes the standard electronic device 10a corresponding to the connection circuit based on the connection circuit that has received the control information from the standard electronic device 10a, and performs processing according to the received control information. Do.
- the optional electronic device control means 22b is connected to the communication connector 50 via the option connection circuit section 32.
- the communication connector 50 is connected to a plurality of option electronic devices 10b. That is, the option electronic device control means 22b is connected to the plurality of option electronic devices 10b with the communication connector 50 interposed therebetween.
- control information (first information)
- identification data corresponding to the option electronic device 10b to be controlled that is, the option Circuit identification data indicating a set of male tabs 71 of the communication connector 50 to which the electronic device 10b is connected
- address data indicating a unique communication address of the communication connector 50 is added. Then, the data is transmitted to the communication connector 50 through the option connection circuit unit 32.
- the option electronic device control means 22b When the option electronic device control means 22b receives the control information (second information) from the communication connector 50, the option electronic device control means 22b is based on the address data and the identification data included in the control information, The electronic device 10b is recognized and processing corresponding to the received control information is performed. When the option electronic device 10b that is the transmission source of the control information cannot be recognized, the control information is discarded as invalid.
- the combination of the plurality of electronic devices 10 when the combination of the plurality of electronic devices 10 is changed, that is, when the combination of the optional electronic device 10 b connected to the communication connector 50 is changed, the combination is changed. Accordingly, the number or type of the optional electronic device 10b included in the optional electronic device unit 12 is changed, and the option electronic device 10b of the new combination is connected to the connection connector 14 with the cable 16. Further, the option electronic device control means 22b of the ECU 20 (that is, a processing program stored in the ROM 23 and used for controlling the option electronic device 10b executed by the CPU 22) corresponds to the option electronic device 10b of a new combination. Changed. Other than these, the standard electronic device control means 22a, the standard connection circuit unit 31, the standard electronic device unit 11, and the option connection circuit unit 32 are not changed.
- the wire harness 30 includes the standard connection circuit unit 31 that connects the standard electronic device 10a and the electronic control unit 20, and the option connection that connects the optional electronic device 10b and the electronic control unit 20.
- the circuit part 32 is provided separately.
- the option connection circuit unit 32 includes a communication connector 50 provided so that a plurality of option electronic devices 10 b can be connected, and an option circuit 321 as a connection circuit for connecting the communication connector 50 to the electronic control unit 20. is doing.
- the communication connector 50 performs multiplex communication with the electronic control unit 20 via the option circuit 321 for multiplexing communication between the plurality of option electronic devices 10 b connected to the communication connector 50 and the electronic control unit 20.
- the standard electronic device control means 22 a of the electronic control unit 20 is connected to the standard electronic device 10 a by the standard connection circuit unit 31 of the wire harness 30, and the optional electronic device control means 22 b of the electronic control unit 20 is connected to the wire harness 30.
- the option connection circuit unit 32 is connected to the option electronic device 10b.
- the standard connection circuit unit 31 that connects the standard electronic device 10a and the electronic control unit 20 and the option connection circuit unit 32 that connects the optional electronic device 10b and the electronic control unit 20 are provided. Since they are provided separately, in the electronic control unit 20 to which the wire harness 30 is connected, control means (standard electronic equipment control means) for controlling the standard electronic equipment 10a and control means for controlling the optional electronic equipment 10b ( Option electronic device control means) can be provided separately from each other. Therefore, even when the combination of the plurality of electronic devices 10 mounted on the vehicle is changed, the optional electronic device control means in the electronic control unit 20 is changed. It is only necessary to change 22b, and standard electronic device control means 22a can be standardized. , Improved design and productivity, the cost can be reduced.
- the option connection circuit unit 32 includes a communication connector 50 provided so that a plurality of option electronic devices 10b can be connected, and an option circuit 321 for connecting the communication connector 50 to the electronic control unit 20. Then, the communication connector 50 performs multiplex communication with the electronic control unit 20 via the option circuit 321 for multiplexing communication between the plurality of option electronic devices 10b connected to the communication connector 50 and the electronic control unit 20. A plurality of communications between the plurality of option electronic devices 10b and the electronic control unit 20 can be performed by using the option circuit 321 in common, so that the combination of the plurality of electronic devices 10 mounted on the vehicle has been changed.
- the combination of the optional electronic device 10b connected to the communication connector 50 is Even if it is changed, only the connection between the option electronic device 10b and the communication connector 50 is changed, and the electronic control unit 20 and the plurality of option electronic devices 10b are connected to each other without changing the option connection circuit unit 32. Can do. Therefore, even when the combination of the plurality of electronic devices 10 mounted on the vehicle is changed, the standard connection circuit unit 31 and the option connection circuit unit 32 can be used in common without being changed, and designability and production The cost can be reduced.
- the standard connection circuit unit 31 includes only one standard electronic device connection connector 36, but is not limited thereto, and may include a plurality of standard electronic device connection connectors 36.
- the standard connection circuit unit 31 has, for example, a press contact terminal provided at the end of the standard circuit 311 and presses the cable 15 of the standard electronic device unit 11 to the press contact terminal.
- the connection means is arbitrary.
- the option connection circuit part 32 was a thing provided with only one communication connector 50, not only this but the communication connector 50 may be provided with two or more.
- the communication connector 50 is provided so that a plurality of option electronic devices can be connected.
- the communication connector 50 is not limited to this, and the communication connector 50 is provided so that one option electronic device can be connected.
- the option connection circuit unit 32 may include a plurality of communication connectors 50. Even in such a configuration, by selecting a communication protocol between the communication connector 50 and the ECU 20 that allows multiplex communication (for example, LIN, CAN, etc.), the plurality of optional electronic devices 10b and the ECU 20 Communication can be multiplexed.
- the standard electronic device control means 22a and the optional electronic device control means 22b are provided logically independently using the CPU 22 in common.
- Two electronic boards on which a CPU is mounted are mounted on the ECU 20, the standard electronic device control means 22a is configured by the CPU mounted on one electronic board, and the optional electronic equipment control means is configured by the CPU mounted on the other electronic board.
- Each may be provided physically independently so as to constitute 22b.
- the ECU 20 This can be handled only by additionally mounting the other electronic board.
- one electronic board ie, the standard electronic device control means 22a
- the other electronic board ie, the optional electronic equipment control means 22b
- the cost can be reduced by standardization, and the parts that need to be changed can be physically integrated into one place, thereby further improving the design.
- the standard electronic device 10a and the ECU 20 are connected so as to be capable of one-to-one communication via the standard connection circuit unit 31.
- the present invention is not limited to this, and the standard connection circuit unit 31
- the same communication connector 50 as that described above may be provided, and communication between the ECU 20 (ie, the standard electronic device control means 22a) and the standard electronic device 10a may be multiplexed and connected. . By doing in this way, the number of circuits of the standard connection circuit unit 31 can be reduced.
- the connection between the electronic device 10 provided near one door of the vehicle and the ECU 20 has been described as a representative example in order to simplify the description of the invention.
- the electronic device control system (indicated by reference numeral 1A in FIG. 4) is not limited to the vicinity of one door, and the electronic devices 10 and ECUs 20A scattered in the vehicle are connected to a plurality of wire harnesses 30. Connected to each other.
- the MPU 21 of the ECU 20A is provided with two communication interfaces (for the standard connection circuit unit 31 and for the option connection circuit unit 32) for each of the plurality of wire harnesses 30.
- Each wire harness 30 is connected to the ECU 20 by the ECU connection connectors 35 and 35A.
- the standard connection circuit portion 31 in each wire harness 30 is connected to the standard electronic device control means 22a, and each wire The option connection circuit part 32 in the harness 30 is connected to the option electronic device control means 22b.
- the option connection circuit units 32 in the plurality of wire harnesses 30 may be connected to the ECU 20B via the junction box (J / C) 29.
- a common circuit that is, a signal line having the same function
- each of the plurality of option connection circuit units 32 is electrically connected to each other, thereby providing one option connection circuit unit.
- 32 can be connected to the ECU 20B (that is, the MPU 21), so that a plurality of option electronic devices 10b connected to different wire harnesses 30 can be configured as one multiplex communication set connected to one option connection circuit unit 32.
- the number of communication interfaces for the option connection circuit unit 32 can be reduced, and the number of communication interfaces that need to be controlled can be reduced, whereby the configuration of the option electronic device control means 22b can be further simplified and the design can be improved.
- the option connection circuit section 32 is electrically connected between the ECU 20B and the junction box 29 by a pair of connectors, a wire harness, or the like provided on each side of the case. 4 and 5, the standard electronic device connection connector 36 and the connection connector 13 and the cable 15 included in the standard electronic device unit 11 are not shown.
- Electronic device control system 10 Electronic device 10a Standard electronic device 10b Optional electronic device 20, 20A, 20B Electronic control unit (ECU) 21 MPU 22 CPU (standard electronic equipment control means, optional electronic equipment control means) 30 Wire harness 31 Standard connection circuit part 311 Standard circuit 32 Option connection circuit part 321 Option circuit (connection circuit) 36 Standard electronic device connector 50 Optional electronic device connector (communication connector)
Abstract
Description
10 電子機器
10a 標準電子機器
10b オプション電子機器
20、20A、20B 電子制御ユニット(ECU)
21 MPU
22 CPU(標準電子機器制御手段、オプション電子機器制御手段)
30 ワイヤハーネス
31 標準接続回路部
311 標準回路
32 オプション接続回路部
321 オプション回路(接続回路)
36 標準電子機器接続コネクタ
50 オプション電子機器接続コネクタ(通信コネクタ)
Claims (2)
- 車両に搭載される複数の電子機器とこれら電子機器を制御する電子制御ユニットとを通信可能に接続するためのワイヤハーネスであって、
前記複数の電子機器のうち前記車両への搭載が必須の標準電子機器と前記電子制御ユニットとを接続する標準接続回路部と、
前記複数の電子機器のうち前記車両への搭載が任意のオプション電子機器と前記電子制御ユニットとを接続するオプション接続回路部と、を有し、
前記オプション接続回路部が、1又は複数の前記オプション電子機器を接続可能に設けられた通信コネクタと、前記通信コネクタを前記電子制御ユニットに接続する接続回路と、を有し、そして、
前記通信コネクタが、該通信コネクタに接続された複数の前記オプション電子機器と前記電子制御ユニットとの通信を多重化する多重通信を、前記接続回路を介して前記電子制御ユニットと行う
ワイヤハーネス。 - 車両に搭載される複数の電子機器と、前記複数の電子機器を制御する電子制御ユニットと、前記複数の電子機器と前記電子制御ユニットとを通信可能に接続するワイヤハーネスと、を有する電子機器制御システムであって、
前記ワイヤハーネスとして、請求項1に記載のワイヤハーネスを有し、
前記電子制御ユニットが、前記標準電子機器を制御する標準電子機器制御手段と、前記オプション電子機器を制御するオプション電子機器制御手段と、を有し、
前記標準電子機器制御手段が、前記標準接続回路部によって前記標準電子機器と接続され、
前記オプション電子機器制御手段が、前記オプション接続回路部によって前記オプション電子機器と接続される
電子機器制御システム。
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CN201080048252.1A CN102596647B (zh) | 2009-10-28 | 2010-10-26 | 线束和电子器件控制系统 |
US13/504,773 US8688323B2 (en) | 2009-10-28 | 2010-10-26 | Wire harness and electronic device control system |
EP10826740.2A EP2495133A4 (en) | 2009-10-28 | 2010-10-26 | WIRING HARNESS AND CONTROL SYSTEM FOR ELECTRONIC DEVICE |
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JP2009247543A JP2011093374A (ja) | 2009-10-28 | 2009-10-28 | ワイヤハーネス、及び、電子機器制御システム |
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EP (1) | EP2495133A4 (ja) |
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JP2017149332A (ja) * | 2016-02-25 | 2017-08-31 | 矢崎総業株式会社 | 車両用ワイヤハーネス構造 |
WO2020121385A1 (ja) * | 2018-12-11 | 2020-06-18 | 株式会社オートネットワーク技術研究所 | ワイヤハーネス及び通信中継方法 |
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JP2013071611A (ja) * | 2011-09-28 | 2013-04-22 | Nissan Motor Co Ltd | 車両用データ設定システム及びその出力設定方法 |
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US9018957B2 (en) | 2012-11-29 | 2015-04-28 | Autoliv Asp, Inc. | Method and system for diagnostic measurement of motor vehicle restraint system squib loop resistance |
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JP2011093374A (ja) | 2011-05-12 |
CN102596647A (zh) | 2012-07-18 |
US8688323B2 (en) | 2014-04-01 |
EP2495133A4 (en) | 2013-05-15 |
US20120221201A1 (en) | 2012-08-30 |
EP2495133A1 (en) | 2012-09-05 |
CN102596647B (zh) | 2015-01-07 |
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