Yazaki Corporation

Masahiro Furukawa

Akiyoshi Kanazawa

Masashi Nakamura

Satoshi Enomoto

A method for manufacturing a wire harness includes: disposing a trunk harness, a branch harness and control boxes on a workbench and attaching the trunk harness and the branch harness to the control boxes; connecting the control boxes to an external device via the branch harness; and switching operation mode of at least one of the control boxes to an information writing mode for inputting information for operating the electric component to be connected to the branch harness into the at least one of the control boxes and then inputting the information from the external device into the at least one of the control boxes via the branch harness.

Wire harness manufacturing method and wire harness

A circuit body for a vehicle is wired on a vehicle body of the vehicle for performing supply of electric power to an electrical component and communication of various communication signals with the electrical component. The circuit body includes: a plurality of control boxes separately disposed on the circuit body and capable of controlling input and output of at least one of the electric power and the communication signal; a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and a branch line harness connecting the control box and the electrical component. The trunk line harness includes a power line for transmitting electric power and a communication line for transmitting communication signals in a separated state. An end portion of the power line and an end portion of the communication line are connected to the control box.

Circuit body for vehicle and manufacturing method of circuit body for vehicle

A circuit body for a vehicle is wired on a vehicle body of the vehicle for performing supply of electric power to an electrical component and communication of various communication signals with the electrical component. The circuit body includes: a plurality of control boxes separately disposed on the circuit body and capable of controlling input and output of at least one of the electric power and the communication signal; a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and a branch line harness connecting the control box and the electrical component. The circuit body has a loop structure in which at least part of the plurality of control boxes are annularly connected via the trunk line harness.

Circuit body for vehicle

A circuit body for a vehicle includes: a plurality of control boxes capable of controlling input and output of at least one of electric power and a communication signal; a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and a branch line harness connecting the control box and the electrical component. The control box includes: a trunk line connecting portion to which the trunk line harness is connected; and a branch line connecting portion to which the branch line harness is connected. At least one of the trunk line connecting portion and the branch line connecting portion includes a plurality of connectors which are classified into a plurality of groups according to an allowable current amount and in which a plurality of the connectors classified into the same group have connection compatibility.

A circuit body for a vehicle includes: a plurality of control boxes dispersedly arranged on the circuit body; a trunk harness connecting one of the control boxes to another of the control boxes; and a branch harness connecting the control boxes to the electric component. The control boxes, the trunk harness and the branch harness are configured to ground a power circuit and a signal circuit through grounding routes different from each other. The power circuit supplies the electric power from a power source to the electric component through the control boxes. The signal circuit transmits a communication signal between the control boxes and the electric component and between one of the control boxes and another of the control boxes.

A circuit body for a vehicle is wired on a vehicle body of the vehicle for performing supply of electric power to an electrical component and communication of various communication signals with the electrical component. The circuit body includes: a plurality of control boxes separately disposed on the circuit body and capable of controlling input and output of at least one of the electric power and the communication signal; a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and a branch line harness connecting the control box and the electrical component. At least one of the plurality of control boxes is grounded via the electrical component connected to the branch line harness.

Growing community of inventors

Tochigi, Japan

Masahiro Furukawa