JP2011020523A - Method of supplying electric power to vehicle and power supply equipment for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of supplying electric power to vehicles by which electric power can easily be supplied from a nearby power supply equipment for vehicles to even a portion where extension is not expected, when an on-vehicle electric apparatus is added. <P>SOLUTION: In this method of supplying electric power, communication for supplying and controlling electric power to electric apparatus 18, 19, 39, 40 is performed by laying a power supply line 2 and a communication line 3 in a loop. By providing a connector 1, which has one or multiple sets of terminals 11, 21, 31 connected to the power supply line 2 and terminals 12, 22, 32 connected to the communication line 3, electric power is supplied through the connector 1 when an electric apparatus 30 is added. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle power supply method and a vehicle power supply device for supplying power to an electric device by laying a power line and a communication line in a loop in the vehicle.

  In recent years, users who have purchased vehicles have increased the number of car audio devices and navigation devices. In order to cope with such a case, if a terminal for adding a power supply module is installed in the vicinity of the passenger seat dash panel of the vehicle and in the trunk room, the power supply module can be added safely and easily. .

  In Patent Document 1, a power supply line is wired in a loop form from a battery power supply, a power supply relay circuit is installed in the middle of the power supply line, and an electric load connected to the terminal unit of the integrated wiring is supplied from the power supply relay circuit. An automobile power supply device that supplies electric power is disclosed. Not only the control signal wires but also the power supply wires can be reduced, and the power relay circuit can also serve as the terminal unit.

JP 2006-131222 A

  In the automobile power supply apparatus disclosed in Patent Document 1, a power supply terminal is installed in advance at a place where an in-vehicle electrical device is expected to be added, and can be used at the time of extension. However, there is a problem in that a loop-shaped main wiring or a nearby power supply apparatus must be modified at the time of expansion at a location where expansion was not expected.

The present invention has been made in view of the above-described circumstances, and can easily supply power from a nearby vehicle power supply device even at a location where expansion is not expected when the on-vehicle electrical device is expanded. An object of the present invention is to provide a power supply method for a vehicle.
Another object of the present invention is to provide a vehicular power supply device that can easily supply power even at a location where expansion is not expected when the on-vehicle electric device is expanded.

  According to a first aspect of the present invention, there is provided a power supply method for a vehicle that performs power supply to an electric device and communication for control by laying a power line and a communication line in a loop in the vehicle. A connector having one or a plurality of terminals connected to a power line and a terminal connected to the communication line is provided, and power is supplied through the connector when an electrical device is added.

  A vehicle power supply device according to a second aspect of the present invention is the vehicle power supply device that is connected to a power supply line and a communication line laid in a loop in the vehicle and performs power supply to the electrical equipment and communication for control. A connector having one or a plurality of sets of terminals for connecting to a line and terminals for connecting to the communication line is provided.

  In the vehicle power supply method according to the first invention and the vehicle power supply device according to the second invention, the vehicle power supply device is connected to a power supply line and a communication line laid in a loop shape in the vehicle, and Communication for power supply and control is performed. The connector has one or more sets of terminals for connecting to power lines and terminals for connecting to communication lines.

  A vehicle power supply device according to a third aspect of the invention includes a plurality of the connectors.

  According to a fourth aspect of the present invention, there is provided a vehicle power supply device comprising: a terminal for connecting to the power line; and a set of terminals for connecting to the communication line; In order to connect to a vehicle power supply device and configure the power supply line and the communication line in a loop shape, and to connect to another vehicle power supply device to be added, the connectors respectively have a feature.

  In this vehicle power supply device, a terminal set for connection to a power supply line and a set of terminals for connection to a communication line are connected to the other power supply device for vehicle in order to connect to the power supply line and the communication line. In order to configure the power supply line and the communication line in a loop shape and to connect to other additional vehicle power supply devices, connectors are provided.

  According to a fifth aspect of the present invention, there is provided a vehicular power supply device including: a connector having a terminal for connecting to the power line and a terminal for connecting to the communication line; The power supply line and the communication line are configured in a loop shape, and are connected to another vehicle power supply apparatus to be added, respectively.

  In this vehicle power supply device, a connector having a terminal for connecting to a power supply line and a terminal for connecting to a communication line is connected to another power supply device for vehicle in order to connect to the power supply line and the communication line. In order to configure the power line and the communication line in a loop shape, and to connect to other additional vehicle power supply devices, they are provided.

  A power supply device for a vehicle according to a sixth aspect of the present invention includes at least one of a fuse connected to the power supply line, a relay for turning on / off a current from the power supply line, and a microcomputer connected to the communication line. It is characterized by.

  This vehicle power supply device includes at least one of a fuse connected to a power supply line, a relay for turning on / off a current from the power supply line, and a microcomputer connected to a communication line.

  According to a seventh aspect of the present invention, there is provided a vehicular power supply device that controls means for operating a sensor, means for driving and controlling an actuator, means for communicating with the outside connected to the communication line, and power supplied to a control device for controlling an electric device. It comprises at least one of the means to do.

  In this vehicle power supply device, at least one of means for operating a sensor, means for driving and controlling an actuator, means for communicating with the outside connected to a communication line, and means for controlling power supplied to a control device for controlling an electric device Has one.

  According to the vehicle power supply method of the present invention, when a vehicle-mounted electrical device is added, the vehicle power supply can easily supply power from a nearby vehicle power supply device even at a location where the expansion is not expected. A method can be realized.

  According to the vehicle power supply device according to the present invention, it is possible to realize a vehicle power supply device that can easily supply power even at a location where expansion is not expected when the vehicle-mounted electrical device is expanded.

It is explanatory drawing for demonstrating the outline of the power supply unit which is embodiment of the power supply method of the vehicle which concerns on this invention, and the power supply device for vehicles. It is a block diagram which shows the structural example of the power supply unit shown in FIG. It is an arrangement figure showing the terminal arrangement of a connector typically. It is a block diagram which shows the structure of the power supply unit which is embodiment of the power supply method of the vehicle which concerns on this invention, and the power supply device for vehicles. It is a block diagram which shows the structure of the power supply unit which is embodiment of the power supply method of the vehicle which concerns on this invention, and the power supply device for vehicles. It is an arrangement figure showing the terminal arrangement of a connector typically. It is a block diagram which shows the structure of the power supply unit which is embodiment of the power supply method of the vehicle which concerns on this invention, and the power supply device for vehicles.

Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof.
(Embodiment 1)
FIG. 1 is an explanatory diagram for explaining an outline of a power supply unit that is Embodiment 1 of a vehicle power supply method and a vehicle power supply device according to the present invention.
In this vehicle power supply method, a power supply unit (vehicle power supply device) 43 installed on the rear left side of the vehicle is connected to a main wiring 56 made of a power supply line and a communication line and laid in a loop in the vehicle, A power supply unit 45 installed at the rear and a power supply unit 44 installed on the rear right side of the vehicle are connected by connectors.

Further, a power back door ECU (Electronic Control Unit) (vehicle power supply device) 46 is connected to the power supply unit 45 by a power line and a communication line. The power back door ECU 46 receives power from the power supply unit 45 and receives an operation signal from the driver's seat via the power supply unit 45 to drive and control the power back door motor 47.
The power supply unit 45 turns on / off the tail / stop lamps 48 to 51 according to an operation signal and a control signal from the driver's seat.

When, for example, the back fog lamp 53, the back guide monitor ECU (vehicle power device) 54, and the corner sensor 55 are added to the power supply state behind the vehicle as described above, the power supply unit 52 is newly supplied to the power supply unit 45. Connect with a cable and a communication cable to add.
A back guide monitor ECU 54 and a corner sensor 55 are further connected to the added power supply unit 52 through a power line and a communication line. Further, the power supply unit 52 turns on / off the back fog lamp 53 in response to an operation signal from the driver's seat.

FIG. 2 is a block diagram illustrating a configuration example of the power supply unit illustrated in FIG. 1.
The power supply unit 20 is laid in a loop in the vehicle, and the power line 2 and the communication line 3 routed from the junction box J / B are connected to the terminal 11 and the terminal 12, respectively.
The power supply line 2 connected to the terminal 11 is branched and connected from the terminal 11 to the terminal 21, the terminal 31, the terminal 24, and the terminal 34 sequentially. The power line 2 branched and connected to the terminal 21 is routed to the next power supply unit. The power supply line 2 branched to the terminal 31 is connected to the terminal 31 through the fuse 10, and is connected from the terminal 31 to the power supply terminal of the added power supply unit 30.

The power supply line 2 branched to the terminal 24 and the terminal 34 is further branched through the fuse 9 and connected to the terminal 24 and the terminal 34. The terminal 24 and the terminal 34 are connected to the power supply terminals of the ECU 18 and the ECU 19, respectively. ECU18 and ECU19 each control the electric equipment which is not illustrated.
The power supply line 2 passing through the fuse 9 is further branched to the relay 16 and the relay 17. The power supply line 2 passing through the relay 16 and the relay 17 is further branched and connected to terminals 26 and 36 and terminals 27 and 37, respectively. The terminal 26 and the terminal 36 are connected to other power supply terminals of the ECU 18 and the ECU 19, respectively. The terminal 27 and the terminal 37 are connected to further power supply terminals of the ECU 18 and the ECU 19, respectively.

A communication line 3 such as a CAN (Controller Area Network) connected to the terminal 12 is sequentially branched and connected from the terminal 12 to the terminal 22, the terminal 32, the terminal 25, and the terminal 35. The communication line 3 branched and connected to the terminal 21 is routed to the next power supply unit. The communication line 3 branched to the terminal 32 is connected from the terminal 32 to the communication terminal of the added power supply unit 30.
The communication line 3 branched to the terminal 25 and the terminal 35 is connected to the terminal 25 and the terminal 35, and is connected to each communication terminal of the ECU 18 and the ECU 19 from the terminal 25 and the terminal 35, respectively.
The communication line 3 connected to the terminal 12 is also branched and connected to the communication circuit 8.

The terminals 11 and 12 are included in the terminal row CN1, the terminals 21 and 22 are included in the terminal row CN2, the terminals 31 and 32 are included in the terminal row CN3, and the terminal rows CN1, CN2, and CN3 are included in the connector 1. Yes.
FIG. 3 is a layout diagram schematically showing the terminal layout of the connector 1. The connector 1 supplies power to the power supply unit 20 and is connected to a terminal row CN1 for communication connection, and is wired to the next power supply unit, and a terminal row CN2 for configuring each loop of the power supply line 2 and the communication line 3 In addition, terminal rows CN3 for wiring to the power supply unit 30 to be added are arranged in three rows.

The power supply line 2 connected to the terminal 11 of the terminal row CN1 is also branched through the fuse 5 and connected to the power supply circuit 6 and the output circuit 14. The power supply circuit 6 converts a voltage supplied from the power supply line 2 into a control voltage and supplies it to a CPU (Central Processing Unit) 7.
The output circuit 14 outputs power to actuators 39 and 40 such as a motor. In addition, detection signals from the sensors 41 and 42 are given to the input circuit 15.
The CPU 7 individually turns on / off the output terminals of the relays 16 and 17 and the output circuit 14 based on the operation signal from the communication circuit 8 and the detection signal input to the input circuit 15.

In the power supply unit 20 having such a configuration, the male side and the female side of the connector 1 are coupled and the terminal row CN1 is connected, whereby power is supplied from the terminal 11 and communication connection is made by the terminal 12. Further, the terminal line CN2 is connected, and the power supply line 2 and the communication line 3 are configured in a loop shape by wiring to the next power supply unit.
In this state, when the power supply unit 30 is added, each terminal that has been subjected to terminal processing in advance on the power supply line and the communication line of the power supply unit 30 is built in and connected to the connector 1.

The connector 1 of the power supply unit 20 includes the terminal rows CN1, CN2, and CN3. However, the connector 1 may include only the terminal rows CN1 and CN2. When the connector 1 has only the terminal rows CN1 and CN2, the power supply unit 20 can supply power to itself and make a communication connection, and can configure the power supply line 2 and the communication line 3 in a loop shape.
In FIG. 2, the terminal rows CN1, CN2, and CN3 are each configured to include one power supply terminal and one communication line terminal. In particular, when CAN is used as a communication line, the communication line is a twisted pair line, so two terminals are required.

(Embodiment 2)
FIG. 4 is a block diagram showing a configuration of a power supply unit that is Embodiment 2 of the vehicle power supply method and the vehicle power supply device according to the present invention. Note that the outline of the power supply unit is the same as that of FIG.
In the power supply unit 20a, a terminal row CN1 of terminals 11 and 12 is included in the connector 1a, a terminal row CN2 of terminals 21 and 22 is included in the connector 1b, and a terminal row CN3 of terminals 31 and 32 is provided. Is included in the connector 1c.
It is desirable in terms of reliability that the terminal row CN1 is configured as a male and the terminal rows CN2 and CN3 are configured as a female. The other configuration of the power supply unit 20a is the same as the configuration of the power supply unit 20 described in the first embodiment, and a description thereof will be omitted.

In the power supply unit 20 a having such a configuration, the male side and the female side of the connector 1 a are coupled to each other so that power is supplied from the terminal 11 and is communicably connected by the terminal 12. Further, the male side and the female side of the connector 1b are coupled and wired to the next power supply unit, whereby the power supply line 2 and the communication line 3 are configured in a loop shape.
In such a state, when the power supply unit 30 is added, the male side of the connector 1c in which the power supply line and the communication line of the power supply unit 30 are preliminarily terminal-treated is connected to the female side of the connector 1c of the power supply unit 20a. Combine. Since other operation | movement operations are the same as that of the power supply unit 20 demonstrated in Embodiment 1, description is abbreviate | omitted. The power supply unit 20a side of the connector 1c may be a male terminal and the terminal side of the harness may be a female terminal.

(Embodiment 3)
FIG. 5 is a block diagram showing a configuration of a power supply unit that is Embodiment 3 of the vehicle power supply method and the vehicle power supply device according to the present invention. Note that the outline of the power supply unit is the same as that of FIG.
The power supply unit 20b is laid in a loop in the vehicle. The power supply line 2, the communication line 3 and the ground line (body earth) 4 routed from the junction box J / B are respectively connected to the terminal 11, the terminal 12 and the power supply unit 20b. Connected to terminal 13.

  The ground line 4 connected to the terminal 13 is sequentially branched and connected from the terminal 13 to the terminal 23, the terminal 33, the terminal 28, and the terminal 38. The ground line 4 branched and connected to the terminal 23 is routed to the next power supply unit. The ground line 4 branched to the terminal 33 is connected from the terminal 33 to the ground terminal of the power supply unit 30a to be added.

The ground line 4 branched to the terminal 28 and the terminal 38 is connected to the CPU 7, the terminal 28 and the terminal 38, and is connected from the terminal 28 and the terminal 38 to the ground terminals of the ECU 18 and the ECU 19, respectively.
The terminal 11, the terminal 12 and the terminal 13 are included in the terminal row CN1a, the terminal 21, the terminal 22 and the terminal 23 are included in the terminal row CN2a, and the terminal 31, the terminal 32 and the terminal 33 are included in the terminal row CN3a, respectively. CN1a, CN2a, and CN3a are included in the connector 1d.

  FIG. 6 is a layout diagram schematically showing the terminal layout of the connector 1d. The connector 1d supplies power to the power supply unit 20b and connects to the terminal row CN1a for communication connection and the next power supply unit, and configures each loop of the power supply line 2, the communication line 3, and the ground line 4. Terminal row CN2a and a terminal row CN3a for wiring to the additional power supply unit 30a are arranged in parallel in three rows. The other configuration of the power supply unit 20b is the same as the configuration of the power supply unit 20 described in the first embodiment, and a description thereof will be omitted.

In the power supply unit 20b having such a configuration, the male side and the female side of the connector 1d are coupled and the terminal row CN1a is connected, whereby power is supplied from the terminal 11 and is connected for communication by the terminal 12. In addition, the terminal row CN2a is connected and wired to the next power supply unit, whereby the power line 2, the communication line 3, and the ground line 4 are configured in a loop.
In this state, when the power supply unit 30a is added, the terminals of the power supply line, the communication line, and the ground line of the power supply unit 30a that have been subjected to terminal processing in advance are connected to the harness side of the connector 1d of the power supply unit 20a. Built-in connection.

  In the power supply unit 20 of the first embodiment, the body ground is taken for each electric device (FIG. 2), but this is not necessary in the power supply unit 20a of the third embodiment. Since other operation | movement operations are the same as that of the power supply unit 20 demonstrated in Embodiment 1, description is abbreviate | omitted.

(Embodiment 4)
FIG. 7 is a block diagram showing a configuration of a power supply unit that is a fourth embodiment of the vehicle power supply method and the vehicle power supply device according to the present invention. Note that the outline of the power supply unit is the same as that of FIG.
In the power supply unit 20c, the terminal row CN1a of the terminal 11, the terminal 12 and the terminal 13 is included in the connector 1e, and the terminal row CN2a of the terminal 21, the terminal 22 and the terminal 23 is included in the connector 1f. The terminal row CN3a of the terminals 33 is included in the connector 1g.
In terms of reliability, it is desirable that the terminal row CN1a is configured as a male and the terminal rows CN2a and CN3a are configured as a female. The other configuration of the power supply unit 20c is the same as the configuration of the power supply unit 20b described in the third embodiment, and a description thereof will be omitted.

In the power supply unit 20c having such a configuration, when the male side and the female side of the connector 1e are coupled, power is supplied from the terminal 11 and is connected for communication by the terminal 12. Further, the male side and the female side of the connector 1f are coupled and wired to the next power supply unit, whereby the power line 2, the communication line 3, and the ground line 4 are configured in a loop shape.
In such a state, when the power supply unit 30a is added, the male side of the connector 1g in which the power supply line, the communication line, and the ground line of the power supply unit 30a are pre-processed is connected to the connector 1g of the power supply unit 20c. Connect with the female side. The other operation and operation are the same as the operation of the power supply unit 20b described in the third embodiment, and a description thereof will be omitted.

1, 1a-1g connector
2 Power line 3 Communication line 4 Ground line 5, 9, 10 Fuse 6 Power circuit 7 CPU
8 Communication Circuit 11-13, 21-23, 31-33, 24-28, 34-38 Terminal 14 Output Circuit 15 Input Circuit 16, 17 Relay 18, 19 ECU
20, 20a to 20c, 30, 30a, 43 to 45 Power supply unit 39, 40 Actuators 41, 42 Sensors 56 Core wiring CN1, CN2, CN3, CN1a, CN2a, CN3a Terminal row

Claims (7)

In a vehicle power supply method for performing power supply and control communication to an electrical device by laying a power line and a communication line in a loop in the vehicle,
A vehicle having a connector having one or a plurality of terminals connected to the power line and the terminal connected to the communication line, and supplying electric power through the connector when adding an electric device. Power supply method. In a power supply device for a vehicle connected to a power supply line and a communication line laid in a loop in the vehicle and performing communication for power supply and control to an electric device,
A vehicle power supply device comprising: a connector having one or a plurality of sets of terminals for connecting to the power line and terminals for connecting to the communication line.   The vehicle power supply device according to claim 2, comprising a plurality of the connectors.   The terminal for connecting to the power line and the set of terminals for connecting to the communication line are connected to the power line and the communication line, so that they are connected to other vehicle power supply devices, and the power line and The vehicle power supply device according to claim 2, wherein each of the connectors has a communication line in a loop shape and connected to another vehicle power supply device to be added.   A connector having a terminal for connecting to the power line and a terminal for connecting to the communication line is connected to another power supply device for the vehicle so that the connector itself connects to the power line and the communication line. The vehicle power supply device according to claim 2, which is provided for configuring the communication line in a loop shape and for connecting to another additional vehicle power supply device.   6. The device according to claim 2, comprising at least one of a fuse connected to the power supply line, a relay for turning on / off a current from the power supply line, and a microcomputer connected to the communication line. Vehicle power supply equipment.   The apparatus includes: at least one of means for operating a sensor; means for driving and controlling an actuator; means for communicating with the outside connected to the communication line; and means for controlling a power source supplied to a control device for controlling an electrical device. The vehicle power supply device according to any one of 1 to 5.

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