Vehicle composite cable and vehicle composite harness

Patent metadata

Field	Value
Publication number	US-2016176369-A1
Application number	US-201514971207-A
Country	US
Kind code	A1
Filing date	Dec 16, 2015
Priority date	Dec 22, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

A vehicle composite cable includes a pair of power wires for supplying a current to an electric parking brake unit that generates a braking force after stopping a vehicle, a first signal line including a twisted pair wire transmitting a first electrical signal during when the vehicle is in motion, a second signal line including a twisted pair wire for transmitting a second electrical signal also during when the vehicle is in motion, and a sheath collectively covering the pair of power wires and the first and second signal lines. The first and second signal lines are not covered with a shield conductor, and the first signal line is separated from the second signal line by the pair of power wires.

First claim

What is claimed is:

1 . A vehicle composite cable, comprising:
a pair of power wires for supplying a current to an electric parking brake unit that generates a braking force after stopping a vehicle; a first signal line comprising a twisted pair wire transmitting a first electrical signal during when the vehicle is in motion; a second signal line comprising a twisted pair wire for transmitting a second electrical signal also during when the vehicle is in motion; and a sheath collectively covering the pair of power wires and the first and second signal lines, wherein the first and second signal lines are not covered with a shield conductor, and the first signal line is separated from the second signal line by the pair of power wires.

2 . The vehicle composite cable according to claim 1 , wherein the first electrical signal comprises a wheel speed detection signal for detecting a rotation speed of a wheel, and
wherein the second electrical signal comprises a vehicle state quantity detection signal indicating a running state of the vehicle different from the rotation speed of the wheel.

3 . The vehicle composite cable according to claim 1 , wherein a region surrounded by the pair of power wires and the first and second signal lines form a space.

4 . The vehicle composite cable according to claim 1 , wherein an outer diameter of insulated wires paired and constituting the first signal line is equal to an outer diameter of insulated wires paired and constituting the second signal line.

5 . The vehicle composite cable according to claim 1 , wherein the first and second signal lines are respectively formed by twisting the pairs of insulated wires at the same twist pitch and different twist phases, and
wherein the pair of insulated wires constituting the second signal line are arranged along a direction orthogonal to an alignment direction of the pair of power wires when the pair of insulated wires constituting the first signal line are arranged along a direction parallel to the alignment direction of the pair of power wires, as viewed in a cross section orthogonal to a longitudinal direction of the sheath.

6 . The vehicle composite cable according to claim 1 , wherein the first and second signal lines are respectively formed by twisting the pairs of insulated wires at different twist pitches.

7 . The vehicle composite cable according to claim 6 , wherein one of the twist pitch of the first signal line and the twist pitch of the second signal line is not less than double the other.

8 . The vehicle composite cable according to claim 1 , wherein the sheath includes an artificial polypeptide fiber.

9 . The vehicle composite cable according to claim 1 , further comprising a filler inside the sheath and among the pair of power wires and the first and second signal lines, wherein the filler includes an artificial polypeptide fiber.

10 . The vehicle composite cable according to claim 1 , further comprising a braided shield inside the sheath so as to collectively cover the pair of power wires and the first and second signal lines, wherein strands constituting the braided shield are braided with an artificial polypeptide fiber.

11 . The vehicle composite cable according to claim 1 , wherein the pair of power wires and the first and second signal lines are held by the sheath via a lubricant.

12 . A vehicle composite harness, comprising:
the vehicle composite cable according to claim 1 , and a connector attached to at least one of ends of the pair of power wires and the first and second signal lines that are exposed from the sheath.

Assignees

• Hitachi Metals Ltd

Inventors

• Ito Hiroyuki
• Toyoshima Naoya
• Hayakawa Yoshikazu
• Murayama Tomoyuki
• Eshima Hirotaka
• Hayashi Shinya
• Oikawa Minoru
• Futatsumori Takahiro
• Sakaguchi Hiroshi

Classifications

• H01B7/1895

  Internal space filling-up means · CPC title

• H01B7/0045

  Cable-harnesses · CPC title

• B60R16/023 Primary

  for transmission of signals between vehicle parts or subsystems · CPC title

• H01B7/1865

  Sheaths comprising braided non-metallic layers · CPC title

• H01B11/04

  with pairs or quads mutually positioned to reduce cross-talk · CPC title