Vehicle multiplex transmission apparatus

A vehicle multiplex transmission apparatus comprising:

• a plurality of control nodes, arranged in respective portions of a vehicle, controlling vehicle auxiliary units;
• a multiplex transmission line connecting said plurality of control nodes;
• a power supply node, arranged at a predetermined portion of the vehicle, supplying electrical power to said plurality of control nodes;
• a first power supply line connecting said power supply node with said plurality of control nodes to supply electric power to said plurality of control nodes;
• and
• a second power supply line connecting said power supply node with said plurality of control nodes to supply electric power to said plurality of control nodes simultaneously with the supply of electric power to said plurality of control nodes through said first power supply line, said second power supply line being routed on a path to supply power to said plurality of control nodes different from a path the first power supply line is routed to supply power to said plurality of control nodes,
• wherein each of said plurality of control nodes is connected with both of said first and second power supply lines so that said control nodes are supplied with the electric power from both said first and second power supply lines, and each of said plurality of control nodes comprises a load driver, a control unit, and a communication unit,
• said first power supply line is arranged to supply electrical power to said load driver, said control unit, and said communication unit of each of said plurality of control nodes, and
• said second power supply line is arranged to supply electrical power to only said control unit and said communication unit of each of said plurality of control nodes.

A vehicle multiplex transmission apparatus, comprising:

• a power supply node arranged at a predetermined portion of a vehicle;
• a plurality of control nodes, arranged in respective portions of the vehicle, controlling vehicle auxiliary units;
• a multiplex transmission line connecting said plurality of control nodes;
• a first power supply line connecting said power supply node and said plurality of control nodes to supply electric power to said plurality of control nodes;
• and
• a second power supply line connecting said power supply node and said plurality of control nodes to supply electric power to said plurality of control nodes, wherein the first power supply line connects a first group of the plurality of control nodes arranged at one side of the vehicle in series and the second power supply line connects a second group of the plurality of control nodes arranged at the other side of the vehicle in series so that the first and second power supply lines form different power supply routes.

A vehicle multiplex transmission apparatus, comprising:

• a power supply node arranged at a predetermined portion of a vehicle;
• a plurality of control nodes, arranged in respective portions of the vehicle, controlling vehicle auxiliary units;
• a multiplex transmission line connecting said plurality of control nodes;
• a first power supply line connecting said power supply node and said plurality of control nodes to supply electric power to said plurality of control nodes;
• and
• a second power supply line connecting said power supply node and said plurality of control nodes to supply electric power to said plurality of control nodes, wherein the first power supply line connects a first group of the plurality of control nodes in series and the second power supply line connects a second group of the plurality of control nodes in series to form different power supply routes so that influences of collision on the vehicle are different at the first and second power supply lines.