JP2000229545A - Vehicle wiring device - Google Patents

Abstract

(57) [Summary] [Problem] Abolition of branching of multiplex communication lines and wire harnesses,
An object of the present invention is to provide a vehicle wiring device that can simplify a wire harness. An engine room connector box and a left cowl side connector box are provided with connectors.
Through the left engine room wire harness 9. Inside the engine room connector box 1 and the left cowl side connector box 15, a power distribution unit, a control unit for controlling loads and multiplex communication, a load driving unit for driving loads, and an input interface unit are provided. An electric wire and a multiplex communication line are provided inside the left engine room wire harness 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiring device for transmitting electric power and signals in a vehicle or the like.

[0002]

2. Description of the Related Art In a conventional vehicle wiring device, electric components on a vehicle are directly connected to each other by electric wires. Therefore, as the number of electric components increases in recent years, the number of electric wires between blocks where electric components are concentrated increases. As a result, the wire harness in which the electric wires are bundled is enlarged, the weight is increased, and the assembling workability is deteriorated.

As means for solving this problem, for example, as described in Japanese Patent Application Laid-Open No. 5-58230, a vehicle electric wiring structure for dividing a vehicle body into a plurality of blocks and constructing a multiplex electrical network is disclosed. A slave control node for controlling electrical components in each block for each block, and a wire harness forming a transmission path of an electric signal from or to the slave control node. Are connected by a main control node, and each control node is connected by multiplex communication. By using such a method, the electric wires between the blocks are only the multiplex communication line and the power supply line, and the electric wires bundled in the wire harness can be greatly reduced.

[0004]

However, in the conventional method, since a sub-control node is provided for each block, the multiplex communication for connecting the sub-control node for each block and the sub-control node and the main control node is performed. Since it is necessary to provide a branch in the wire harness to connect the line and the slave control node to the wire harness, there is a problem that the wire harness is complicated.

[0005] It is an object of the present invention to provide a vehicle wiring device that can eliminate the branching of a multiplex communication line and a wire harness and can simplify the wire harness.

[0006]

(1) In order to achieve the above object, the present invention relates to a vehicle wiring apparatus for controlling an electric load using multiplex communication. A wire harness including electric wires is connected by a connector, and a connector box having control means for controlling the multiplex communication and controlling the electrical load is provided. With such a configuration,
The branch of the multiplex communication line and the wire harness is eliminated, and the wire harness can be simplified.

(2) In the above (1), preferably,
The connector box includes a load driving unit that drives the electrical load.

(3) In the above (1), preferably,
The wire harness is composed of a trunk wire harness including an electric wire and a multiplex communication line, and a branch wire harness including an electric wire connected to the electrical load. The trunk wire harness and the branch wire harness are connected to the connector box. The connection is made by the following.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a vehicle wiring device according to an embodiment of the present invention will be described below with reference to FIGS. First, the conceptual configuration of the vehicle wiring device according to the present embodiment will be described with reference to FIG. A conventional vehicle wiring device will be described with reference to FIG. 23 for reference.

As shown in FIG. 22, in this embodiment, the main wire harnesses Main-A and Main
-B and Main-C are wired. Trunk wire harness Ma
Inside the in-A, Main-B, and Main-C, as described later, a power supply wire for supplying power to a motor, a lamp, etc., which is a load, and a drive wire for controlling driving of the motor and lighting of the lamp. A multiplex communication line is built in. Main line wiring harness Main-
A, Main-B, and Main-C are respectively connector boxes C
B is connected via a connector. Inside the connector box CB, as will be described later, a control unit such as a CPU for controlling each load, detecting the state of a switch as an input unit, and controlling multiplex communication is provided.

Further, a branch wire harness Sub is connected to the connector box CB via a connector. As will be described later, power supply wires PL-1 and PL-2 for supplying electric power to a load, such as a motor and a lamp, and for capturing the state of a switch are built in the branch wire harness Sub. Power wires PL-1 and PL-2 are respectively
It is connected to the motors M1 and M2, which are loads, and supplies power.

Here, the configuration of a conventional vehicle wiring device will be described with reference to FIG. The main wire harnesses Main-X and Main-Y are wired inside the vehicle. Inside the main wire harnesses Main-X and Main-Y, there are built-in power supply wires for supplying power to the motors and lamps as loads, and multiplex communication lines for controlling the driving of the motors and lighting of the lamps. ing. The main wire harness Main-X and the main wire harness Main-Y are connected by a connector Cont.

A part of the trunk wire harness Main-X is branched as a trunk wire harness Main-X1, and connected to a control module Mod-B such as a BCM (Body Control Module) via a connector. It is connected. The control module Mod-B includes a control unit such as a CPU for controlling each load, detecting the state of a switch serving as an input unit, and controlling multiplex communication.

The main wire harness Main-Y is
It is connected via a connector to a control module Mod-D such as a DM (Driver Door Module).
The control module Mod-D includes a control unit such as a CPU for controlling each load, detecting the state of a switch serving as an input unit, and controlling multiplex communication.
A branch wire harness Sub is connected to the control module Mod-D via a connector. Inside the branch wire harness Sub, as described later, a power supply wire for supplying power to a load such as a motor or a lamp.
PL-1 and PL-2 are built-in. Power wires PL-1, PL-2
Each is connected to the motors M1 and M2 as loads and supplies power.

That is, as is apparent from a comparison between FIG. 22 and FIG. 23, in the present embodiment, a sub-trunk wire harness branched from the trunk wire harness is not provided, and the trunk wire harness and the branch line are not provided. It consists only of a wire harness. for that reason,
The main wire harness is connected to the connector as shown in FIG.
All are connected to the connector box CB without using Cont. As a result, it is not necessary to branch the multiplex communication line inside the trunk line. The connector box CB connected to the main wire harness Main is
A plurality thereof are arranged in the vehicle, and details thereof will be described with reference to FIG.

Here, the overall conceptual configuration of the vehicle wiring device according to the present embodiment will be explained with reference to FIG.
In the present embodiment, a left engine room wire harness 9, which is a main wire harness, a main wire harness 23, and a left floor wire harness 24 are provided in the vehicle.
, A right floor wire harness 35, an alternator / starter wire harness 8 which is a branch wire harness, and a right engine room wire harness 10. The left engine room wiring harness 9, the main wiring harness 23, the left floor wiring harness 24, and the right floor wiring harness 35 are respectively connected to the power supply wires 17
47, 1817, 1836, 1975 and multiplex communication line 1
745, 1821, 1835, and 1946. The alternator / starter wiring harness 8 and the right engine room wiring harness 10 are connected to a power supply wire 174.
7, 1959.

As the connector boxes, an engine room connector box 1, a left cowl connector box 15, a right cowl connector box 26, a right rear door connector box 37, and a left rear connector box 43 are arranged.

A power supply from the battery 402 is supplied by a power supply wire 174 bundled in the alternator / starter wire harness 8.
7 to the engine room connector box 1 connected via the connector 4. The power from the alternator 403 is supplied to the right cowl connector box 26 connected via the connector 27 using a power supply wire 1959 bundled in the right engine room wire harness 10.

The engine room connector box 1 and the left cowl side connector box 15 are connected to the power supply line 1841 bundled with the left engine room wire harness 9 through the multiplex communication line 1745 via the connectors 5 and 18. The left cowl connector box 15 and the right cowl connector box 26 are connected to each other by a power supply line 1817 and a multiplex communication line 1821 bundled in the main wire harness 23.
8 and 28 are connected.

Further, the right cowl connector box 26 and the right rear door connector box 37 are connected to the power supply wire 1975 bundled with the right floor wire harness 35 by the multiplex communication line 1946 via the connectors 30 and 38.
The left cowl connector box 15 and the left rear connector box 43 are connected to the power supply wire 1836 bundled in the left floor wire harness 24 via the multiplex communication line 1835 via the connectors 19 and 44.

Next, a more specific overall configuration of the vehicle wiring device according to the present embodiment will be described with reference to FIG. In the vehicle, connector boxes 1, 15, 26, 4
3, 37 are arranged. Wire harness 6,7,8,
9,10,22,23,24,34,35,36,4
1, 42, 47, 48 are connector boxes 1, 15,
26, 43, and 37.

In the engine room connector box 1 at the front left of the engine room, the front wire harness 6 is connected to the connector 2 and the engine wire harness 7 is connected to the connector 3.
Thus, the alternator / starter wire harness 8 is connected to the connector 4, and the left engine room wire harness 9 is connected to the connector 5. In the left cowl side connector box 15 at the base of the left front door, the left engine room wire harness 9 is provided by the connector 16, the left front door wire harness 22 is provided by the connector 17, the main wire harness 23 is provided by the connector 18, and the left floor wire harness 2 is provided.
4 are connected by a connector 19.

In the right cowl connector box 26 at the base of the right front door, the right engine room wire harness 10 is provided by the connector 27, the main wire harness 23 is provided by the connector 28, the right front door wire harness 34 is provided by the connector 31, and the right floor wire harness 35 is provided. Is connector 3
0, the roof wire harness 36 is connected by the connector 29. To the right rear door connector box 37 at the base of the right rear door, the right floor wire harness 35 is connected by a connector 38, the right rear door wire harness 41 is connected by a connector 39, and the right luggage room wire harness 42 is connected by a connector 40. In the left rear door connector box 43 at the base of the left rear door, the left floor wire harness 24 is connected by the connector 44, the left luggage room wire harness 47 is connected by the connector 45, and the left rear door wire harness 48 is connected by the connector 46.

Thus, the respective wire harnesses are connected via the connector box. However, in order to connect wires that do not need to pass through the connector box, a connector 20 is provided between the left engine room wire harness 9 and the main wire harness 23, and a connector 20 is provided between the main wire harness 23 and the left floor wire harness 24. A connector 32 is provided between the right engine room wire harness 10 and the main wire harness 23, and a connector 33 is provided between the main wire harness 23 and the right floor wire harness 35.

A grommet is provided at a portion where the wire harness penetrates from the engine room into the vehicle interior.
Grommet 14 in left engine room wire harness 9
However, the grommet 13 is provided in the engine wire harness 7,
Grommet 2 in right engine room wiring harness 10
5 are provided.

Next, the connection state of each wiring harness with the load and the like in the vehicle wiring device according to the present embodiment will be described with reference to FIGS. The wire harness includes a power supply wire, and is a bundle of wires connected to electrical components such as a load and a switch. A branch, which is a bundle of wires to one electrical component, and a branch thereof. Is composed of trunks gathered.

First, a connection state of the front wire harness 6 with a load or the like in the present embodiment will be described with reference to FIG. A front wire harness 6 is connected to the engine room connector box 1 via a connector 2. The front wire harness 6 includes a bundle 208 of electric wires connected to the right front combination lamp 201 which is a branch, a bundle 209 of electric wires connected to the fan motor 202, a bundle 210 of electric wires connected to the fan motor 203, A bundle 211 of electric wires connected to the horn 204 and a bundle 212 of electric wires connected to the horn 205
And a bundle 213 of electric wires connected to the triple pressure SW 206 and a bundle of electric wires 214 connected to the ground point 207.

Next, the connection state of the engine wire harness 7 with a load and the like in this embodiment will be described with reference to FIG. Engine room connector box 1
Is connected to the engine wire harness 7 via the connector 3.
Is connected. The engine wire harness 7 includes an injector 301 and an engine control unit 30.
2, and a bundle of electric wires connected to the igniter 303. The wire harness 7 includes a main trunk and a branch, as in FIG.

Next, the connection state of the alternator / starter wire harness 8 with a load or the like in this embodiment will be described with reference to FIG. An alternator / starter wire harness 8 is connected to the engine room connector box 1 via a connector 4. The alternator / starter wire harness 8 includes a battery 402, an alternator 403, an air conditioner compressor 401, and a starter 4.
The wire harness 8 includes a main trunk portion and a branch portion, similarly to FIG. 2.

Next, the connection state of the left engine room wire harness 9 with a load and the like in this embodiment will be described with reference to FIG. The left engine room wire harness 9 is connected to the engine room connector box 1 and the left cowl side connector box 15 via connectors 5 and 16, respectively. The left engine room wire harness 9 is provided with a left airbag sensor 501.
, Front wiper motor 502, wiper dicer 503, ABS actuator 504, left front ABS
It is composed of a bundle of electric wires connected to a speed sensor 505, an earth point 507, and a left fender mirror 506. As in FIG. 2, the wire harness 9 includes a main trunk and a branch. In the left engine room wire harness 9,
A grommet 14 is provided.

Next, the connection state of the left front door wire harness 22 with a load or the like in this embodiment will be described with reference to FIG. A left front door wire harness 22 is connected to the left cowl side connector box 15 via a connector 17. The left front door wire harness 22 includes a left door mirror unit 601.
, Left front power window SW 602, left front door lock motor 603, left front power window motor 604
, And a bundle of electric wires connected to the left speaker 605. As in FIG. 2, the wire harness 22 includes a main trunk and a branch.

Next, a connection state of the main wire harness 23 with a load or the like in this embodiment will be described with reference to FIG. Left cowl side connector box 1
The main wire harness 23 is connected to the fifth and right cowl side connector boxes 26 via connectors 18 and 28, respectively. Main wire harness 23
Are a blower motor 701, an air conditioner control unit 702, an ABS control unit 703,
Rear DEFSW 704 and stop lamp SW 705
, Ignition SW706, trunk fuel opener SW707, and wiper diisa SW708
, Remote control mirror SW709, meter 710, and column SW
711, hazard SW 712, airbag control unit 713, parking brake SW 714
, Audio unit 715 and earth point 71
The wire harness 23 is composed of a main trunk and a branch, as in FIG.

Next, the connection state of the right engine room wire harness 10 with a load and the like in this embodiment will be described with reference to FIG. The right engine room wire harness 10 is connected to the right cowl side connector box 26 via a connector 27. The right engine room wire harness 10 is connected to the front right ABS speed sensor 801, the right fender mirror 802, the alternator 403, the ground point 807, the right airbag sensor 805, the washer motor 806, and the brake oil amount SW 809. The wire harness 10 is configured by a bundle of electric wires, and similarly to FIG. 2, the wire harness 10 includes a main trunk portion and a branch portion.

Next, the connection state of the right front door wire harness 34 with a load or the like in this embodiment will be described with reference to FIG. A right front door wire harness 34 is connected to the right cowl side connector box 26 via a connector 31. The right front door wire harness 34 includes a right door mirror unit 901.
A right front power window 902, a right front door lock motor 903, a right front power window motor 904,
It is composed of a bundle of electric wires connected to the right speaker 905, and the wire harness 34 is composed of a main trunk and a branch, as in FIG.

Next, the connection state of the roof wire harness 36 with a load or the like in this embodiment will be described with reference to FIG. A roof wire harness 36 is connected to the right cowl side connector box 26 via a connector 29. Roof wire harness 36
Is a room lamp 1001 and an earth point 1002
The wire harness 36 is composed of a main trunk and a branch, as in FIG.

Next, the connection state of the right floor wire harness 35 with a load or the like in this embodiment will be described with reference to FIG. A right floor wire harness 35 is connected to the right cowl side connector box 26 and the right rear door connector box 37 via connectors 30 and 38, respectively. Right floor wire harness 3
Reference numeral 5 denotes a right front ABS speed sensor 1103, and a bundle of electric wires connected to the ground point 1105 and the right seat belt SW 1104. As in FIG. 2, the wire harness 35 includes a main trunk portion and branch portions.

Next, a connection state of the right rear door wire harness 41 with a load or the like in this embodiment will be described with reference to FIG. Right rear door connector box 3
7, a right rear door wire harness 41 is connected via a connector 39. The right rear door wire harness 41 is configured by a bundle of electric wires connected to the right rear power window SW 1201, the right rear door lock motor 1202, and the right rear power window motor 1203. As in FIG. Consists of a main body and branches.

Next, the connection state of the right luggage room wire harness 42 with a load or the like in this embodiment will be described with reference to FIG. A right luggage room wire harness 42 is connected to the right rear door connector box 37 via a connector 40. The right luggage room wire harness 42 includes a right front door SW 1305,
Right rear door SW1306 and right rear combination lamp 1301
And earth point 1303 and rear DEF 1302
And a bundle of electric wires connected to the rear wiper 1304, and the wire harness 42 includes a main trunk portion and a branch portion as in FIG.

Next, the connection state of the left luggage room wire harness 47 with a load or the like in this embodiment will be described with reference to FIG. A left luggage room wire harness 47 is connected to the left rear door connector box 43 via a connector 45. The left luggage room wire harness 47 has a fuel opener 140
7, a luggage opener 1401, a license lamp 1402, a left rear combination lamp 1403, a ground point 1404, a left rear door SW 1405, and a left front door SW 1406. The wire harness 47 includes a main trunk and a branch.

Next, the connection state of the left floor wire harness 24 with a load or the like in this embodiment will be described with reference to FIG. The left floor wire harness 24 is connected to the left cowl side connector box 15 and the left rear door connector box 43 via connectors 19 and 44, respectively. Left floor wire harness 2
Reference numeral 4 denotes a bundle of electric wires connected to the left seat belt SW 1501, the left rear ABS speed sensor 1503, and the ground point 1504. As in FIG. 2, the wire harness 24 includes a main trunk and a branch.

Next, a connection state of the left rear door wire harness 48 with a load or the like in this embodiment will be described with reference to FIG. Left rear door connector box 43
Is connected to a rear left door wire harness 48 via a connector 46. Left rear door wire harness 48
Are left rear power window SW 1601, left rear door lock motor 1602, left rear power window motor 1
The wire harness 48 includes a main trunk portion and a branch portion, similarly to FIG.

Next, the configuration of each connector box in the vehicle wiring device according to the present embodiment will be described with reference to FIGS. The connector box is composed of a power distribution unit, a control unit, a load driving unit, and an input interface unit, and controls the electrical components connected by wires bundled in a wire harness connected to the connector box. Manages power distribution.

First, the configuration of the engine room connector box 1 in this embodiment will be described with reference to FIG. The engine room connector box 1 is shown in FIG.
As shown in FIG. 1, connectors 2, 3, 4, and 5 are provided, and wire harnesses 6, 7, 8, and 9 are connected to the connectors, respectively. The wire harness 6 includes a power supply wire 17.
32, 1733, 1734, 1735, 1736, 17
37, 1738, and 1739 are included. The wire harness 7 includes electric wires 1751 and 1760 for power supply. Further, the wire harness 8 includes power supply wires 1746, 1747, 1748, 1754. Further, the wire harness 9 includes power supply wires 1740, 1741, 1742, 1743, 1744 and a multiplex communication line 1745.

First, the power distribution unit will be described. The alternator 403 connects the battery 402 with the power supply wire 17.
48, and charges the battery 402. The battery 402 is connected to the engine room connector box 1 by a power supply wire 1747,
4,1705,1706,1707,1717,171
8, 1720, an element 1709 for protecting the control unit and the input interface unit when the battery is connected in reverse, and a relay 1708 for protecting the drive unit when the battery is connected in reverse.

The fuse 1703 is connected to the ignition switch
Injector / igniter relay 1 that turns ON when ON
Power is supplied to the igniter 303 and the injector 301 via the 701 and the electric wire 1731. Ignition SW
Is obtained through multiplex communication as described later. The fuse 1704 supplies power to the engine control unit 302 via the engine control relay 1702 and the electric wire 1760 which are turned off when the battery is connected in reverse. The engine control unit 302 includes the electric wire 1
751 is also connected to the engine room connector box 1 and performs multiplex communication with the engine room connector box 1 via the electric wire 1751.

The fuse 1705 supplies power to the magnet SW of the starter 12 via the relay 1713 and the electric wire 1746. Fuses 1706 and 1707 are connected to relays 1725, 1724, and 1723, and electric wires 1733 and 1723, respectively.
Power is supplied to the fan motors 202 and 203 via the power supply 34.

The fuse 1717 is connected to a power supply wire 1741.
The power is supplied to the left cowl side connector box 15 via. The fuses 1718 and 1720
Power is supplied to the ABS actuator 504 via the wires 19 and 1721 and the electric wire 1740.

The power supply circuit 1710 downstream of the battery reverse connection protection element 1709 supplies power to the control unit 1712 and the input interface unit 1722. Driving unit 1714,
1716 and 1726, protection relay 1 at the time of battery reverse connection is provided.
Power is supplied via 708.

Next, the control section will be described. Control unit 1
A control unit 712 controls the driving units 1714, 1716, and 1726 based on an input signal from the input interface unit 1722 and a control signal obtained through the multiplex communication line 1745, and converts the input signal of the input interface unit 1722 into a multiplex signal line. The data is transmitted to other units via 1745.

Next, the driving section will be described. Drive unit 1
714 drives the starter magnet relay 1713 and the air conditioner compressor 401 connected by the electric wire 1754. The starter relay 1713 turns on and off the starter 12 connected by the electric wire 1746. The drive unit 1716 drives the front wiper 502 connected by the electric wire 1744, the wiper dicer 503 connected by the electric wire 1743, and the left fender mirror 506 connected by the electric wire 1742. The front wiper 502 is connected to the ground point 507 by the electric wire 1756.
Connected to. The wiper diather 503 includes an electric wire 175
7 is connected to an earth point 507.

The driving unit 1726 drives the horns 205 and 204 connected to the electric wires 1737, the radiator fan relays 1723, 1724 and 1725, and the left front combination lamp 201 connected to the electric wires 1732. Fan relays 1723, 1724, 1725
Performs ON / OFF of the fan motors 202 and 203 connected by the electric wires 1733 and 1734 and switching between series / parallel connection. The fan relay 203 has an electric wire 1735
Is connected to the ground point 207. The left front combination lamp 201 includes a left head lamp (high), a left head lamp (low), a left side marker lamp, a left turn signal lamp, a left fog lamp, a left cornering lamp, and the like.

Next, the input interface will be described. The input interface unit 1722 is connected to the electric wire 17
By 38, it is connected to the triple pressure SW 206 and transmits an input signal to the control unit 1712. Triple pressure SW 206 is connected to ground point 207 by electric wire 1739. Grounds 1762 and 1761 of engine room connector box 1 are connected to ground point 207 by electric wire 1760.

Next, the configuration of the left cowl side connector box 15 in this embodiment will be described with reference to FIG. As shown in FIG. 1, the left cowl side connector box 15 includes connectors 16, 17, 18, and 19, and the wire harnesses 9, 22, and 2, respectively.
3, 24 are connected. In the wire harness 9,
A power supply wire 1750 and a multiplex communication line 1745 are included. The wire harness 22 includes a power supply wire 18.
27, 1828, 1829, 1830, and 1831. Further, the power supply wires 1822, 1823, 1824, 1825, 182
6, 1840 and a multiplex communication line 1821. The wire harness 24 includes a power supply wire 1833,
1836 and 1852 and a multiplex communication line 1835 are included.

First, the power distribution unit will be described. Power supply wire 1750 is connected to engine room connector box 1 and fuses 1802, 1816, 1817.
An element (diode) 1804 for protecting the control unit and the input interface unit when the battery is connected in reverse, and a relay 1806 for protecting the drive unit when the battery is connected in reverse.
Then, power is supplied to the ACC relay 1809 and the blower relay 1814.

The fuse 1802 supplies power to the left rear door module in the left rear connector box 43 via a power supply wire 1836 and a relay 1801 for protecting the elements of the left rear door module when the battery is connected in reverse. Fuse 18
Reference numeral 16 denotes an air conditioner unit 702 via an electric wire 1825.
Supply power to The air conditioner unit 702 is
A connection 840 is connected to the multiplex communication line 1821 via the communication driver 1808, and multiplex communication data on the multiplex communication line 1821 is acquired.

The fuse 1817 is connected to a power supply wire 1826.
Power is supplied to the right cowl connector box 26 via the. A power supply circuit 1805 downstream of the protection element 1804 at the time of battery reverse connection supplies power to the control unit 1810 and the input interface units 1818 and 1842. Drive unit 181
5, 1819, protection relay 1806 at the time of battery reverse connection
Power is supplied via the.

Next, the control section will be described. Control unit 1
810, input interface units 1818, 1842
Signal and multiplex communication lines 1745, 1821, 18
Drive unit 1 based on the control signal obtained through
815, 1819 and input signals of the input interface units 1818, 1842 to the multiplex signal line 1.
The data is transmitted to other units via 745, 1821, and 1835.

Next, the driving section will be described. Drive unit 1
815 is an ACC relay 1809 and a blower relay 181.
4 is performed. The ACC relay 1809 is connected to the fuse 1811 and the electric wire 1 when the ignition switch is in the ACC / ON state.
Power is supplied to the audio unit 715 via 822. The drive unit 1815 also supplies power to the ACC load via the fuse 1812 and the electric wire 1823. The blower relay 1814 supplies power to the blower motor 701 via the fuse 1813 and the electric wire 1824. Blower motor 701 is connected to ground point 716 by electric wire 1841. The drive unit 1819 drives the left front power window motor 604 connected via the electric wire 1828, the left front door lock motor 603 connected via the electric wire 1829, and the connected right door mirror unit 601 connected via the electric wire 1830. I do.

Next, the input interface unit will be described. The input interface unit 1818
27, it is connected to the left front power window SW602, and transmits an input signal from the left front power window SW602 to the control unit 1810.

The input interface section 1842 is connected to the left seat belt SW 1501 by an electric wire 1833, and transmits an input signal from the left seat belt SW 1501 to the control section 1810. The electric wire 1832 connected to the seat belt SW 1501 is connected to the ground point 1503. The grounds 1850, 1851 of the left cowl side connector box 15 are connected to a ground point 1503 via an electric wire 1852.

The audio signal of the audio unit is
It is connected to the left cowl side connector box 15 via the electric wire 1822, and transmitted from the connector box 15 to the left door speaker 605 via the electric wire 1831.

Next, the configuration of the right cowl side connector box 26 in this embodiment will be described with reference to FIG. As shown in FIG. 1, the right cowl side connector box 26 includes connectors 27, 28, 29, 30,
31 and the wiring harness 10,
23, 36, 35 and 34 are connected. The power supply wires 1954, 1955, 19
56, 1957, 1958, 1959.
In addition, the wire harness 23 includes a power supply wire 182.
6, 1928, 1929, 1931, 1933, 193
4, 1936, 1938, 1040, 1944, 194
5, 1972, 1973, 1974, 1981 and a multiplex communication line 1821. Further, the wire harness 36 includes a power supply wire 1961. The wire harness 35 includes a power supply wire 1947 and a multiplex communication line 1975. Further, the power supply wires 1948, 1949, 1
950, 1951, 1952, 1970, and 1972 are included.

First, the power distribution unit will be described. The power supply wire 1826 is connected to the left cowl side connector box 15 and the fuses 1901, 1912, 190
6, an element (diode) 1902 for protecting the control unit and the input interface unit when the battery is connected in reverse,
Relay 190 for protecting the drive unit at the time of battery reverse connection
4 and an ignition relay 1908.

The fuse 1912 supplies power to the right rear door module via a relay 1914 for protecting elements of the right rear door module in the right rear door connector box 37 and a power supply wire 1946 when the battery is reversely connected. The fuse 1901 is connected to the room lamp 100 via an electric wire 1961.
1 is supplied with power. The room lamp 1001 is
960 is connected to the ground point 1002.

Fuse 1906 supplies power to meter 710 via electric wire 1974. The meter 710 is
It is connected to the multiplex communication line 1821 by the electric wire 1973, and acquires multiplex communication data via the communication driver 1909. A power supply circuit 1903 downstream of the protection element 1902 at the time of the reverse connection of the battery supplies power to the control unit 1924 and the input interface units 1910, 1921, 1917, 1915.

Power is supplied to the driving units 1922, 1919, and 1923 via a protection relay 1904 at the time of reverse connection of the battery. The alternator 403 includes a power supply wire 195.
9 to the right cowl connector box 26. By doing so, it is possible to achieve dual power supply using the battery and the alternator.

Next, the control section will be described. Control unit 1
924 is an input interface unit 1910, 192
1, 1917, 1915 and control signals obtained via the multiplex communication lines 1821, 1975 to control the drive units 1923, 1922, 1919 and the input interface units 1910, 192.
1, 1917 and 1915 to the multiplexed signal line 182
1, 1975 and transmitted to other units.

Next, the driving section will be described. Drive unit 1
980 drives the ignition relay 1908. The ignition relay 1908 is connected to the fuse 1905 and the electric wire 197 when the ignition SW is turned on / off.
The power is supplied to the ABS control unit 703 via the power supply 2 and to the airbag unit 713 via the fuse 1907 and the electric wire 1981.

The ABS control unit 703 includes:
Right front speed sensor 801 is connected to connector 32 and electric wire 192
5-a, the right rear speed sensor 1103 is connected via the connector 33 and the electric wire 1925-b, and the left front speed sensor 505 is connected via the connector 20 and the electric wire 1925-c.
The rear left speed sensor 1502 is connected to the connector 21 and the electric wire 19.
25-d. Airbag unit 71
In No. 3, the airbag sensor right 805 is connected to the connector 32 via a wire 1926-a, and the airbag sensor left 501 is connected to the connector 20 via a wire 1926-b. As described above, the ABS speed sensors 801 and 110
3,505,1502 and airbag sensors 805,50
Sensors such as 1, which have restrictions such as the mounting position and the importance of signals, are not connected via a connector box but are directly connected to each other.

The drive section 1919 includes a right rear power window motor 904 connected via a wire 1950 and a right front door lock motor 90 connected via a wire 1951.
3 and the connected right door mirror unit 901 connected via the electric wire 1952. The ground wire of the electric wire 1952 is connected to the ground 1918 of the right cowl side connector box 26. The driving unit 1922 is connected to a washer motor 806 via an electric wire 1956.
And the right front combination lamp 804 connected via the electric wire 1957 and the connected right fender mirror 802 connected via the electric wire 1958. Note that the right front combination lamp 804 includes a right head lamp (high), a right head lamp (low), a right side marker lamp, a right turn signal lamp, a right fog lamp, a right cornering lamp, and the like.
The driving unit 1923 drives the room lamp 1001 connected via the electric wire 1961.

Next, the input interface unit will be described. The input interface unit 1910
28, the ignition SW 706 and the electric wire 1929
Column SW711, the remote control mirror SW709 by the electric wire 1931, and the trunk
Stop lamp SW705 by fuel opener SW707 and electric wire 1934, and rear D by electric wire 1936
Hazard SW7 by EFSW704 and electric wire 1938
12, a parking SW 714 by an electric wire 1940,
It is connected to the wiper dicer SW 708 by an electric wire 1944, and transmits an input signal from each SW to the controller 1924. It should be noted that the ignition SW 706 has a KEY
/ SW, IG / SW, ACC / SW, ST / SW, and the like. The column SW711 includes a horn, a turn signal right, a turn signal left, a headlamp auto, a headlamp Hi, a headlamp Lo, a front wiper Lo, a front wiper Hi, a front wiper Int, a front wiper washer, a rear wiper Lo, and a rear wiper In.
t, a switch such as a rear wiper washer is provided. In addition, the remote control mirror SW709 has
Mirror down, mirror right, mirror left, mirror open, mirror closed,
Switches such as a right set and a left set are provided. Electric wire 192 connected to ignition SW 706
7, an electric wire 1930 connected to the column SW 711, an electric wire 1932 connected to the remote control mirror SW 709, and an electric wire 19 connected to the trunk fuel opener SW.
35 and the electric wire 1 connected to the stop lamp SW705
937 and the electric wire 19 connected to the rear DEFSW 704
39, an electric wire 1941 connected to the hazard SW, and an electric wire 1942 connected to the parking brake SW 714.
And the electric wire 19 connected to the wiper dicer SW708
43 and an electric wire 1929 connected to the ground 1911 of the right cowl side connector box 26 are connected to a ground point 716.

The input interface unit 1915 is connected to the right front seat belt SW 1104 by an electric wire 1947, and transmits an input signal from the SW 1104 to the control unit 1924. The electric wire 1976 connected to the right front seat belt SW 1104 is connected to the ground point 1105. The input interface unit 1917 is connected to the power window SW 602 by an electric wire 1949 and to the door lock motor position SW 1971 by an electric wire 1970.
The input signal from W1971 is transmitted to the control unit 1924.
SW602 and 1971 are connected to the wire 1 respectively.
949, 1972 to ground 1916 in the right cowl connector box. The power window SW 602 includes a main SW, DR / Up, and DR / Do.
wn, Auto / SW, AS / Up, AS / Down,
RR / Up, RR / Down, RL / Up, RL / Do
wn, lock, unlock switch and the like. The input interface unit 1921 includes an electric wire 1955
Is connected to the brake oil amount SW 809 by the
Is transmitted to the control unit 1924. SW809
And the electric wire 1954 connected to the ground 1920 of the right cowl connector box 26 are connected to the ground point 807.

The audio signal of the audio unit 715 is connected to the right cowl side connector box 26 via the electric wire 1945, and transmitted from the connector box 26 to the right door speaker 905 via the electric wire 1948.

Next, the structure of the right rear door connector box 37 in this embodiment will be described with reference to FIG. As shown in FIG. 1, the right rear door connector box 37 includes connectors 38, 39, and 40, and is connected to wire harnesses 35, 41, and 42, respectively. The wire harness 35 includes a power supply wire 1946 and a multiplex communication line 1975. The wire harness 41 includes power wires 2010, 2011, and 20.
12 are included. Further, the wire harness 42 includes power supply wires 2013, 2014, 2015, 201
6, 2020, and 2021 are included. The wire harness 35 includes power supply wires 1947 and 1975. Further, the power supply wires 1948, 1949, 1950, 1951, 1
952, 1970, and 1972.

First, the power distribution unit will be described. Power cable 1946 is for right cowl side connector box 2
6, the power supply circuit 2001 and the driving units 2005, 2
008 and the rear DEF relay 2031. The power supply circuit 2001 supplies power to the control unit 2003 and the input interface units 2004 and 2009.

Next, the control section will be described. Control unit 2
003 is an input interface unit 2004, 2009
And the control signals obtained through the multiplex communication line 1975 and the communication driver 2002 to control the driving units 2005 and 2008, and the input signals of the input interface units 2004 and 2009 to the multiplex signal line 1975 and the communication The data is transmitted to another unit via the driver 2002.

Next, the input interface will be described. The input interface unit 2004
10 is connected to the right rear power window SW1201 to transmit an input signal from the SW1201 to the control unit. The input interface unit 2009 includes a right rear door SW1306 by an electric wire 2021 and a right front door S by an electric wire 2020.
It is connected to W1305 and transmits an input signal from SW1306 to the control unit 2003. An electric wire 2018 connected to the right rear door SW 1306 and an electric wire 1019 connected to the right front door SW 1305 are connected to the ground point 1302.

Next, the driving section will be described. Drive unit 2
005 drives the right rear door lock motor 1202 connected via the electric wire 2011 and the right rear power window motor 1203 connected via the electric wire 2012. The driving unit 2008 includes a rear wiper 1304, a rear DEF relay 2031, and an electric wire 201 connected via the electric wire 2013.
6 is driven via the right rear combination lamp 1301. The rear DEF relay 2031 supplies power to the rear DEF 1302 connected via the electric wire 2015. The electric wire 2030 connected to the rear DEF 1302 is
Connected to earth point 1302. The right rear combination lamp 1301 includes a tail lamp, a stop lamp, a turn signal lamp, and a back lamp.

The grounds 2006 and 2007 of the right rear door connector box are connected to a ground point 1302 via an electric wire 2014.

Next, the configuration of the left rear door connector box 43 in this embodiment will be described with reference to FIG. As shown in FIG. 1, the left rear door connector box 43 includes connectors 44, 45, and 46, to which wire harnesses 24, 47, and 48 are connected, respectively. The wire harness 24 includes a power supply wire 1836 and a multiplex communication line 1834. The power supply wires 2113, 2114, 21
15, 2118, 2121, 1222, and 2130 are included. Further, the wire harness 48 includes power supply wires 2110, 2111, and 11212.

First, the power distribution unit will be described. The power supply wire 1836 is connected to the left cowl side connector box 15, and is connected to the power supply circuit 2101 and the drive unit 210.
5, 2108. Power supply circuit 2101
The control unit 2103 and the input interface unit 210
4, 2109.

Next, the control section will be described. Control unit 2
103 is an input interface unit 2104, 2109
Based on the input signal from the controller and the control signal obtained through the multiplex communication line 1834 and the communication driver 2102, the driving units 2105 and 2108 are controlled, and the input signals of the input interface units 2104 and 2109 are transmitted to the The data is transmitted to another unit via the driver 2102.

Next, the driving section will be described. Drive unit 2
105 drives a left rear door lock motor 1602 connected via an electric wire 2111 and a left rear power window motor 1603 connected via an electric wire 2112.
The driving unit 2108 includes a luggage opener 1401 connected via an electric wire 2114, a fuel opener 1407 connected via an electric wire 2115, a license lamp 1402 connected via an electric wire 2130, and an electric wire 2
Right rear combination lamp 1403 connected via 118
And drive. The electric wire 2117 connected to the luggage opener 1401, the electric wire 2116 connected to the fuel opener 1407, and the electric wire 2113 connected to the grounds 2107 and 2106 of the left rear connector box 43 are connected to the ground point 1404.

Next, the input interface unit will be described. The input interface unit 2104 is connected to the electric wire 21
10 is connected to the left rear power window SW 1601, and transmits an input signal from the 1601 SW to the control unit 2103. The input interface unit 2109 includes an electric wire 212
2 is connected to the left rear door SW 1405 by an electric wire 2121, and is connected to the left rear door SW 1406 by an electric wire 2121.
The input signals from 1405 and 1406 are transmitted to the control unit 2103. Electric wire 211 connected to left rear door SW 1405
9 and the electric wire 2120 connected to the left front door SW 1406
Are connected to an earth point 1404.

Next, the external shapes of the connector box and the wire harness used in the vehicle wiring device according to one embodiment of the present invention will be described with reference to FIGS. 25 and 26. As shown in FIG. 25, connectors CNT-1, CNT-2, and CNT-3 are attached to ends of main wire harnesses Main-A, Main-B, and Main-C, respectively, which are wired inside the vehicle. ing. The connector CNT-4 is also attached to the end of the branch wire harness Sub. And connector CNT
Control each load using -1, CNT-2, CNT-3, CNT-4,
It is connected to a connector box CB provided with a control unit such as a CPU for detecting the state of a switch serving as an input means and controlling multiplex communication.

As shown in FIG. 26, a wire harness WH such as a trunk wire harness or a branch wire harness includes a trunk portion WH-Tr and a trunk WHT-Tr.
r, there is a branch portion WH-Br branched from
A connector CNT-Ea is attached to an end of -Br. The connector CNT-Ea is connected to an electrical component EA which is a load such as a motor or a lamp or an input means such as a switch.

With the above-described configuration of the wire harness and the connector box, in the present embodiment, one connector box collectively controls the electrical components on a plurality of wire harnesses connected to itself. Therefore, the number of branch lines of the wire harness including the power supply line and the multiplex communication line connected to the control device other than the connector box can be reduced. Therefore, the branch of the multiplex communication line and the wire harness is eliminated, and the wire harness can be simplified.

Next, the configuration of a vehicle wiring device according to another embodiment of the present invention will be described with reference to FIG. The same reference numerals as those in FIG. 1 indicate the same parts. In this embodiment, an even number of connector boxes 2701,
2702, 2703, and 2704 are arranged on the vehicle symmetrically. With such an arrangement, the connector box 2701 and the connector box 27 arranged symmetrically are arranged.
04 can be made the same, and the connector box 2702 and the connector box 2703 can be made the same shape, so that the connector box can be shared and the manufacturing cost can be reduced.

In the vehicle, connector box 2701,
2702, 2703, and 2704 are arranged. Wire harness 9A, 10, 22, 23, 24, 34, 35, 3
6, 41, 42, 47, and 48 are connector boxes 27.
01,2702,2703,2704.

In the left cowl side connector box 2701 at the base of the left front door, the left engine room wire harness 9A is connected to the connector 16 and the left front door wire harness 22 is connected to the main wire harness 23 by the connector 17.
Are connected by the connector 18 and the left floor wire harness 24 is connected by the connector 19. To the left rear door connector box 2702 at the base of the left rear door, the left floor wire harness 24 is connected by the connector 44, the left luggage room wire harness 47 is connected by the connector 45, and the left rear door wire harness 48 is connected by the connector 46. In the right rear door connector box 2703 at the base of the right rear door,
The right floor wire harness 35 is connected by the connector 38, the right rear door wire harness 41 is connected by the connector 39, and the right luggage room wire harness 42 is connected by the connector 40. The right cowl connector box 2704 at the base of the right front door has a right engine room wire harness 10
Is a connector 27, a main wire harness 23 is a connector 28, a right front door wire harness 34 is a connector 31, a right floor wire harness 35 is a connector 30 and a roof wire harness 36 is a connector 2
9. Thus, the respective wire harnesses are connected via the connector box. However, in order to connect wires that do not need to pass through the connector box, a connector 20 is provided between the left engine room wire harness 9A and the main wire harness 23, and a connector 20 is provided between the main wire harness 23 and the left floor wire harness 24. Is a connector 21, and a connector 3 is provided between the right engine room wire harness 10 and the main wire harness 23.
2, a connector 33 is provided between the main wire harness 23 and the right floor wire harness 35, respectively.

A grommet is provided at a portion where the wire harness penetrates from the engine room into the vehicle interior.
Grommet 14 in left engine room wire harness 9
However, the grommet 13 is provided in the engine wire harness 7,
Grommet 2 in right engine room wiring harness 10
5 are provided.

According to the present embodiment, the number of branch lines of the wire harness including the power supply line and the multiplex communication line connected to the control device other than the connector box can be reduced, and the divergence of the multiplex communication line and the wire harness is eliminated. Thus, the wire harness can be simplified. Further, the shape of the connector box forming the left and right pair can be made the same, the connector box can be shared, and the manufacturing cost can be reduced.

[0093] Embodiments of the present invention include the following. (1) In the wiring device for a vehicle according to the first aspect, the power supply to the load air conditioner compressor and the cutoff are performed by an electric load driving unit in the connector box. (2) In the wiring device for a vehicle according to the first aspect, the power supply to the load front wiper and the cutoff are performed by an electric load driving unit in the connector box. (3) In the wiring device for a vehicle according to the first aspect, the power supply to the load wiper dicer is turned on and off by an electric load driving means in the connector box. (4) In the wiring device for a vehicle according to the first aspect, the power supply to the load headlamp and the cutoff are performed by an electric load driving unit in the connector box. (5) In the wiring apparatus for a vehicle according to the first aspect, the power supply to the load fog lamp is turned on and off by an electric load driving unit in the connector box. (6) In the wiring device for a vehicle according to the first aspect, the power supply to the load door lock motor and the cutoff are performed by an electric load driving unit in the connector box. (7) In the wiring apparatus for a vehicle according to the first aspect, the power supply to the load power window motor is turned on and off by an electric load driving unit in the connector box. (8) In the wiring apparatus for a vehicle according to the first aspect, the power supply to the load fender mirror or the door mirror is turned off and on by an electric load driving unit in the connector box. (9) In the wiring device for a vehicle according to the first aspect, the power supply to the load washer motor is turned on and off by an electric load driving unit in the connector box. (10) In the vehicle wiring device according to the first aspect, the power supply to the load stop lamp and the cutoff are performed by an electric load driving unit in the connector box. (11) In the wiring apparatus for a vehicle according to the first aspect, the power supply to the load backup lamp and the cutoff are performed by an electric load driving unit in the connector box. (12) In the wiring apparatus for a vehicle according to the first aspect, the power supply to the load tail lamp and the cutoff are performed by an electric load driving unit in the connector box. (13) In the vehicle wiring device according to the first aspect, the power supply to the load turn signal lamp is turned on and off by an electric load driving unit in the connector box. (14) In the vehicle wiring device according to the first aspect, the power supply to the load rear wiper and the cutoff are performed by an electric load driving unit in the connector box. (15) In the wiring device for a vehicle according to the first aspect, the power supply to the load luggage opener and the cutoff are performed by an electric load driving unit in the connector box. (16) In the wiring device for a vehicle according to the first aspect, the power supply to the load fuel opener and the cutoff are performed by an electric load driving unit in the connector box. (17) In the wiring device for a vehicle according to the first aspect, the power supply to the load license lamp and the cutoff are performed by an electric load driving unit in the connector box. (18) In the vehicle wiring device according to the first aspect, the power supply to the load room lamp and the cutoff are performed by an electric load driving unit in the connector box.

[0094]

According to the present invention, the branching of the multiplex communication line and the wire harness is eliminated, and the wire harness can be simplified.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of a vehicle wiring device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a connection state with a load and the like in a front wire harness in a vehicle wiring device according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a connection state with a load and the like in an engine wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram of a connection state with a load and the like in an alternator / starter wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram of a connection state with a load or the like in a left engine room wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 6 is an explanatory diagram of a connection state with a load or the like in a left front door wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 7 is an explanatory diagram of a connection state with a load or the like in a main wiring harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram of a connection state with a load and the like in a right engine room wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 9 is an explanatory diagram of a connection state with a load and the like in a right front door wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 10 is an explanatory diagram of a connection state with a load or the like in a roof wire harness in a vehicle wiring device according to an embodiment of the present invention.

FIG. 11 is an explanatory diagram of a connection state with a load or the like in a right floor wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 12 is an explanatory diagram of a connection state with a load or the like in a right rear door wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 13 is an explanatory diagram of a connection state with a load or the like in a right luggage room wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 14 is an explanatory diagram of a connection state with a load and the like in a left luggage room wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 15 is an explanatory diagram of a connection state with a load and the like in a left floor wire harness in the vehicle wiring device according to an embodiment of the present invention.

FIG. 16 is an explanatory diagram of a connection state with a load or the like in a left rear door wire harness in the vehicle wiring device according to the embodiment of the present invention.

FIG. 17 is an explanatory diagram of a configuration of an engine room connector box in a vehicle wiring device according to an embodiment of the present invention.

FIG. 18 is an explanatory diagram of a configuration of a left cowl side connector box in the vehicle wiring device according to one embodiment of the present invention.

FIG. 19 is an explanatory diagram of a configuration of a right cowl side connector box in a vehicle wiring device according to an embodiment of the present invention.

FIG. 20 is an explanatory diagram of a configuration of a right rear door connector box in the vehicle wiring device according to one embodiment of the present invention.

FIG. 21 is an explanatory diagram of a configuration of a left rear door connector box in a vehicle wiring device according to an embodiment of the present invention.

FIG. 22 is a block diagram illustrating a conceptual configuration of a vehicle wiring device according to an embodiment of the present invention.

FIG. 23 is a block diagram showing a conceptual configuration of a conventional vehicle wiring device.

FIG. 24 is a block diagram showing an overall conceptual configuration of a vehicle wiring device according to an embodiment of the present invention.

FIG. 25 is a perspective view showing an external shape of a connector box and a wire harness used in the vehicle wiring device according to one embodiment of the present invention.

FIG. 26 is a perspective view showing an external shape of a connector box and a wire harness used in the vehicle wiring device according to one embodiment of the present invention.

FIG. 27 is an explanatory diagram showing an overall configuration of a vehicle wiring device according to another embodiment of the present invention.

[Explanation of symbols]

1 ... engine room connector box 2, 3, 4, 5, 16, 17, 18, 19, 27, 2
8, 29, 30, 31, 38, 39, 40, 44, 4
5, 46 connector 6 floor wire harness 7 engine wire harness 8 alternator / starter wire harness 9 left engine room wire harness 10 engine 11 alternator 12 starter 13, 14 grommet 15 left cowl side connector box 20, 21, 32, 33 ... connector 22 ... left front door wire harness 23 ... main wire harness 24 ... left floor wire harness 25 ... grommet 26 ... right cowl side connector box 34 ... right door wire harness 35 ... right floor wire harness 36 ... Roof wire harness 37 ... Right rear door wire harness 41 ... Right rear door wire harness 42 ... Right luggage room wire harness 43 ... Left rear door wire harness 47 ... Left luggage room wire harness 48 ... Left Wire harness 50 ... battery

Claims (3)

[Claims] 1. A wiring device for a vehicle for controlling an electric load using multiplex communication, wherein a wire harness including an electric wire for supplying electric power to the electric load is connected by a connector, and the control of the multiplex communication is performed. And a connector box having a control means for controlling the electrical load. 2. The vehicle wiring device according to claim 1, wherein the connector box includes a load drive unit that drives the electrical load. 3. The wiring device for a vehicle according to claim 1, wherein the wire harness includes a main wire harness including an electric wire and a multiplex communication line, and a branch wire harness including an electric wire connected to the electric load. A vehicle wiring device, wherein the trunk wire harness and the branch wire harness are connected by the connector box.