Wire harness and communication relay method
AssigneesAutonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
InventorsHiromichi Yasunori, Makoto Chujo
Life of this patent
Estimating the term…
Abstract
Provided are a wire harness and a communication relay method with which effects such as reduction in the relay processing load of an in-vehicle device or improvement in the scalability of an in-vehicle device can be expected. A wire harness according to an embodiment includes a circuit board detachably mountable to an in-vehicle device, a plurality of communication lines connected to the circuit board, and a relay unit provided on the circuit board and configured to relay communication between the plurality of communication lines and to relay communication between the communication lines and the in-vehicle device.
Claims11
A wire harness comprising:
- a circuit board detachably mountable to an in-vehicle device by being inserted into and removed from an opening provided in a casing of the in-vehicle device;
- a plurality of communication lines connected to the circuit board;
- and
- a relay IC (Integrated Circuit) that includes a relay unit provided on the circuit board and configured to relay communication between the plurality of communication lines and to relay communication between the communication lines and the in-vehicle device,
- wherein the circuit board has:
- a terminal electrically connectable to the in-vehicle device;
- a first input-output IC interposed between the terminal and the relay IC, and configured to input and output communication signals with respect to the terminal;
- and
- a second input-output IC interposed between the communication lines and the relay IC, and configured to input and output communication signals with respect to the communication lines,
- the terminal is provided on one edge side of the circuit board, and the communication lines are connected on the other edge side of the circuit board, and
- the first input-output IC or the second input-output IC is mounted on a surface on an opposite side of the circuit board to the surface on which the relay IC is mounted.
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A communication relay method comprising:
- using a wire harness that includes a circuit board to which a plurality of communication lines are connected and detachably mounted to an in-vehicle device by being inserted into and removed from an opening provided in a casing of the in-vehicle device, the circuit board having a terminal electrically connected to the in-vehicle device, a relay IC including a relay unit, a first input-output IC interposed between the terminal and the relay unit and configured to input and output communication signals with respect to the terminal, and a second input-output IC interposed between the communication lines and the relay unit and configured to input and output communication signals with respect to the communication lines, the terminal being provided on one edge side of the circuit board and the communication lines being connected on the other edge side of the circuit board, and the first input-output IC or the second input-output IC being mounted on a surface on an opposite side of the circuit board to the surface on which the relay IC is mounted;
- relaying communication between the plurality of communication lines with the relay unit provided on the circuit board;
- and
- relaying communication between the communication lines and the in-vehicle device with the relay unit.
Dependencies are inferred from the claim text.