Abstract: A vehicular circuit body includes a trunk line that includes a power source line having a predetermined current capacity and a communication line having a predetermined communication capacity, and that is routed in a vehicle body, a branch line that is directly or indirectly connected to an accessory, and a plurality of control boxes that are disposed in a distribution manner along the trunk line, each having a control unit that distributes at least one of power from the power source line, supplied to the trunk line, and a signal from the communication line, to the branch line connected to the trunk line. The trunk line is formed of a routing material having at least one kind of conductor among a flat conductor, a round bar conductor, and a stranded wire. The communication line of the trunk line is routed so that the plurality of control boxes are connected in a ring form.

Abstract: A vehicular circuit body includes a trunk line that includes a power source line and a communication line and is routed in a vehicle body, and a plurality of control boxes that are disposed in a distribution manner along the trunk line. In a vehicle, a first power source supplies power to an accessory mounted on the vehicle and a second power source supplies power which is higher in voltage than the power of the first power source to a drive source of the vehicle. The vehicular circuit body further includes a voltage drop unit that reduces the voltage of the power supplied from the second power source, to the voltage of the power of the first power source. To the power source line of the trunk line, the power from the first power source is supplied, and the power from the second power source is supplied through the voltage drop unit.

Abstract: A vehicular circuit body includes a trunk line that includes a power source line and a communication line, and that is routed in a vehicle body; and a plurality of control boxes that are disposed in a distribution manner along the trunk line. The trunk line includes a first trunk line portion extending in a front-and-rear direction of the vehicle body and a second trunk line portion extending in a leftward-and-rightward direction of the vehicle body. The plurality of control boxes include a branch control box that connects the first trunk line portion and the second trunk line portion, and distributes power from one of the first trunk line portion and the second trunk line portion to the other one.

Abstract: A vehicular circuit body provided in a vehicle includes: a trunk line that extends in at least a front-and-rear direction of the vehicle; and a plurality of control boxes that are provided in the trunk line, wherein each of the plurality of control boxes is able to connect with a branch line that is directly or indirectly connected to an accessory, and the trunk line includes a power source line and a communication line.

Abstract: A vehicular circuit body provided in a vehicle includes a trunk line that extends in at least a front-and-rear direction of the vehicle and a plurality of control boxes that are provided in the trunk line. The trunk line includes a power source line having a predetermined current capacity and a communication line having a predetermined communication capacity. The communication line is routed so that at least a part of the plurality of control boxes are connected in a ring form.

Abstract: A vehicular circuit body includes a trunk line that extends in at least a front-and-rear direction of a vehicle, a plurality of control boxes that are provided on the trunk line, and a branch line that connects the control box to an accessory. The trunk line and the branch line each includes a power source line having a predetermined current capacity and a communication line having a predetermined communication capacity. The control box includes a branch line connection portion to which the branch line is connected, and a branch line control unit that distributes power from the trunk line to the branch line by controlling the branch line connection portion according to a control program. The control program can be externally changed based on the accessory connected to the branch line.

Abstract: A vehicular circuit body provided in a vehicle, includes: a trunk line that extends in at least a front-and-rear direction of the vehicle; and a plurality of control boxes that are provided in the trunk line, in which the trunk line includes power source lines of two systems and a communication line.

Abstract: A vehicular circuit body provided in a vehicle includes a trunk line that extends in at least a front-and-rear direction of the vehicle, a plurality of control boxes that are provided in the trunk line, and a branch line that directly or indirectly connects a control box to an accessory. The trunk line includes a power source line having a predetermined current capacity and a communication line having a predetermined communication capacity. The branch line includes a communication line having a predetermined communication capacity. The communication line of the trunk line has a transmission path for an optical signal. The communication line of the branch line has a transmission path for an electric signal.

Abstract: A vehicular circuit body includes a trunk line that extends in a front-and-rear direction of a vehicle, a plurality of control boxes that are provided on the trunk line, and a branch line that connects the control box to an accessory. The trunk line and the branch line each includes a power line having a predetermined current capacity and a communication line having a predetermined communication capacity. The vehicle is divided into a plurality of regions. At least two control boxes are disposed in the regions which are different from each other, each of which includes a gateway conversing communication methods for the communication line of the branch line and the communication line of the trunk line. A plurality of the gateways are able to communicate with each other via the communication line of the trunk line.

Abstract: A vehicular circuit body includes a plurality of control boxes, a trunk line that connects the plurality of control boxes to each other, and a branch line that directly or indirectly connects the control box to an accessory. The trunk line and the branch line each includes a power source line having a predetermined current capacity and a communication line having a predetermined communication capacity. Each of the plurality of control boxes includes a plurality of branch line connection portions to and from which the communication line of the branch line is attachable and detachable. Each of the plurality of branch line connection portions is provided with a lock function portion that is physically or electrically brought into a lock state in a case where the branch line is not connected thereto.

Abstract: Two communication ECUs which can be disposed in different areas on a vehicle are equipped with respective communication relays which are connected to each other by an interarea connection unit. The functions of each of the communication relays are simplified and separated from the functions of a router. When receiving a signal, the communication relays outputs the signal to another, belonging to the same system as the communication line from which the signal has been received, of communication lines and to the router. The router controls a route of a signal to be transmitted between different systems of communication lines that are one of the communication lines and one of the communication lines. Since the communication relays are low in cost and can operate at high speed and the number of routers is decreased, the components cost can be lowered.

Abstract: A vehicle interior illumination device for controlling illumination in a vehicle interior includes an operation input portion configured to receive an instruction operation of either lighting or light adjustment by a user, a first state detection portion configured to detect a first state representative of a getting-off preparation of the user, a second state detection portion configured to detect a second state representative of a getting-off completion of the user, and a light adjustment degree setting portion configured to shift the illumination to a preset light adjustment degree including off when the first state and the second state are detected.

Abstract: One or more of a plurality of input ports (P11-P14) that allow input of a binary signal are allocated to a unique port, and the potential thereof is fixed to a ground potential, etc., using the electrical wires (43d, 43c) of a wire harness. The potential of the remaining input ports in the initial state is set to a high potential using a pull-up circuit, etc., and a combination of the potential of the unique port and the potential of the remaining ports is associated with the ID value of the corresponding node. In order to share the remaining ports in the reading of the ID and the reading of a signal, the ID is established after a standby until a given time has elapsed without a change in the potential when the potential of the input ports is read.

Abstract: A wire harness structure includes a main harness that has a trunk harness routed on a vehicle, and has at least one branch harness having one end connected to the trunk harness as a branch and the other end electrically connected to an electrical device mounted on the vehicle; and a branch connection mechanism to which at least one additional electrical device mounted on the vehicle is electrically connected, and which is connected to the main harness in a retrofitting manner as a branch.

Abstract: A control device includes a plurality of input ports to which electrical components are connected, a potential setting unit that sets the plurality of input ports to have any one of a first reference potential and a second reference potential different from the first reference potential, an ID specifying unit that specifies identification information of the control device based on a combination of electric potentials of the plurality of input ports, a storage unit that stores the specified identification information, and a control unit that controls the electrical component based on the specified identification information. In the control device, in a given case, the ID specifying unit prohibits the identification information specified at the start of the control device from being written into the storage unit for a prescribed time, and specifies the identification information again after the prescribed time and writes it into the storage unit.

Abstract: According to embodiments, a vehicle wire harness includes one end to be electrically connected to a control unit mounted on a vehicle and the other end to be electrically connected to one or more light sources. The vehicle wire harness further includes a driver operation portion configured to receive a control signal designating a lighting form for the one or more light sources from the control unit and to output a drive pattern for driving the one or more light sources. The driver operation portion is subordinate to the control unit.

Abstract: Provide is a light emitting device capable of reducing the number of parts while suppressing temperature rise of a light source board. Each of a plurality of LED units has an LED boards, and constant current boards. LED board is equipped with a blue LED, a red LED, and a green LED, LED board is equipped with a blue LED, a red LED, and a green LED. A constant board is equipped with a constant current circuit supplying constant current to the red LEDs and having the largest driving current. The constant current board is equipped with constant current circuits supplying constant current to the remaining blue LEDs, and the green LEDs.

Abstract: A communication system includes a control device and a plurality of electric units configured to be connected to the control device respectively to communicate with each other, and each of the plurality of electric units having a unique identifier. Each of the plurality of electric units comprises a resistor configured to set the corresponding identifiers. The respective resistors of the plurality of electric units are connected to each other in series to form a setting circuit. The control device is configured to determine the corresponding identifiers of the plurality of respective electric units based on magnitudes of respective voltages applied to the plurality of respective resistors in the setting circuit, and to send signals indicating the determined identifiers to the plurality of electric units, respectively.

Abstract: A vehicle interior illumination device for controlling illumination in a vehicle interior includes an operation input portion configured to receive an instruction operation of either lighting or light adjustment by a user, a first state detection portion configured to detect a first state representative of a getting-off preparation of the user, a second state detection portion configured to detect a second state representative of a getting-off completion of the user, and a light adjustment degree setting portion configured to shift the illumination to a preset light adjustment degree including off when the first state and the second state are detected.

Abstract: A vehicular illumination mechanism is mountable on a vehicle having a loading and unloading mechanism for moving a wheelchair between the vehicle and a road surface. The loading and unloading mechanism has an upper face portion and is movable between a stored position and an extended position. The vehicular illumination mechanism includes a position detection portion that is configured to detect a position of the loading and unloading mechanism, an illuminating lamp that is configured to illuminate the upper face portion of the loading and unloading mechanism extended to the extended position, and an illumination control portion that is configured to light the illuminating lamp when the position detection portion detects that the loading and unloading mechanism is in the extended position.