Vehicle and vehicle wire harness system
The vehicle wire harness system addresses the challenge of updating in-vehicle equipment by incorporating a common wire harness and specification-specific wire harnesses with a common connector accessible in the vehicle's completed state, facilitating easy updates and reducing costs.
Patent Information
- Application Number
- JP2023204650
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2025-06-16
- Estimated Expiration
- 2043-12-04
AI Technical Summary
The existing vehicle wire harness systems require extensive disassembly to access and update in-vehicle equipment, leading to high costs and complexity.
A vehicle wire harness system featuring a common wire harness with a shared circuit for multiple equipment specifications, specification-specific wire harnesses, and a common connector that can be accessed in the vehicle's completed state, allowing for easy replacement of wire harnesses without disassembling the entire system.
This configuration enables straightforward updates to in-vehicle equipment by allowing access to specification-specific wire harnesses and common connectors without needing to remove the common wire harness, thereby reducing the number of parts to be removed and lowering update costs.
Smart Images

Figure 2025089787000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a structure of a vehicle including a vehicle wire harness system and a configuration of the vehicle wire harness system.
Background Art
[0002] Patent Document 1 discloses a wire harness connection structure that enables connection of a common wire harness even when the terminal arrays of connector connection portions to which the wire harness is connected by devices are different. In this structure, the device and the wire harness are connected via a wire harness for array conversion. Here, the wire harness for array conversion is formed by dividing and rearranging one end side of a plurality of electric wires according to the terminal array of the connector connection portion of the device, and has a device-side connector connected to the device and a harness-side connector connected to the connector of the wire harness on the other end side.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] By the way, in recent years, in-vehicle equipment has been updated after purchasing a vehicle. At that time, in addition to attaching and detaching the in-vehicle equipment to be updated, access to the wire harness may be required. However, since the wire harness is attached to the body at the initial stage of vehicle assembly, it is necessary to remove many parts to access the wire harness, and there is a problem that the cost of updating the in-vehicle equipment becomes high.
[0005] Therefore, an object of the present disclosure is to provide a vehicle that can easily update in-vehicle equipment.
Means for Solving the Problems
[0006] The vehicle of the present disclosure is a vehicle equipped with a vehicle wire harness system, wherein the vehicle wire harness system includes a common wire harness having a circuit common to each specification of in-vehicle equipment capable of selecting a plurality of specifications, a plurality of types of specification-specific wire harnesses having circuits different for each specification of the in-vehicle equipment and connecting the common wire harness and the in-vehicle equipment, and a common connector capable of connecting the common wire harness and each type of the specification-specific wire harnesses, and the common connector is arranged at a position accessible in the vehicle-completed state.
[0007] Thereby, since it is possible to access the specification-specific wire harness and the common connector in the vehicle-completed state, the specification-specific wire harness can be easily replaced. Also, since it is not necessary to access the common wire harness, fewer parts need to be removed when updating the in-vehicle equipment. Thereby, the in-vehicle equipment can be easily updated.
[0008] In the vehicle of the present disclosure, the common connector may be accessible with the in-vehicle equipment removed.
[0009] Thereby, by removing the in-vehicle equipment to be updated, it is possible to access the specification-specific wire harness and the common connector, so that the specification-specific wire harness can be easily replaced and the in-vehicle equipment can be easily updated.
[0010] In the vehicle of the present disclosure, the in-vehicle equipment is a seat capable of selecting a manual specification and an electric specification, the common wire harness has a circuit common to a manual seat and an electric seat, the specification-specific wire harnesses include a manual wire harness connecting the common wire harness and the manual seat and an electric wire harness connecting the common wire harness and the electric seat, and the common connector may be arranged on the floor panel below the seat.
[0011] Thus, the manual specification sheet can be easily updated to an electric specification sheet.
[0012] In the vehicle of the present disclosure, the common connector may be accessible with the seat removed.
[0013] Thus, when removing the manual specification seat, the specification-specific wire harness can be replaced, and the seat can be easily updated.
[0014] The vehicle wire harness system of the present disclosure includes a common wire harness having a common circuit for each specification of in-vehicle equipment that can select a plurality of specifications, a plurality of types of specification-specific wire harnesses having different circuits for each specification of the in-vehicle equipment and connecting the common wire harness and the in-vehicle equipment, and a common connector capable of connecting the common wire harness and each type of the specification-specific wire harnesses.
Advantages of the Invention
[0015] The present disclosure can provide a vehicle capable of easily updating in-vehicle equipment.
Brief Description of the Drawings
[0016]
Figure 1
Figure 2
Figure 3
Figure 4
Best Mode for Carrying Out the Invention
[0017] Hereinafter, a vehicle 100 equipped with a vehicle wire harness system 20 (hereinafter referred to as the wire harness system 20) will be described with reference to the drawings. Note that FR, UP, and RH shown in each figure indicate the front side, upper side, and right side of the vehicle 100, respectively. Also, the directions opposite to FR, UP, and RH indicate the rear side, lower side, and left side. Hereinafter, when simply using the directions of front and rear, left and right, and up and down for description, unless otherwise specified, they shall indicate the front and rear in the front-rear direction of the vehicle 100, the left and right in the left-right direction, and the up and down in the up-down direction.
[0018] As shown in FIGS. 1 and 2, the vehicle 100 includes a body 10 having a passenger compartment 11 and a wire harness system 20. On the floor panel 12 constituting the passenger compartment 11, left and right front seats 13L and 13R and a rear seat 14 are mounted. Also, a steering wheel 15 is provided in front of the right front seat 13R. In addition, the body 10 is provided with left and right front doors 16L and 16R and left and right rear doors 17L and 17R for entering and exiting the passenger compartment 11. A control device 19 is mounted inside the front compartment 18 in front of the passenger compartment 11.
[0019] The front seats 13L and 13R are in-vehicle equipment that can select a plurality of specifications including a manual specification and an electric specification. The front seats 13L and 13R with the manual specification are configured to manually adjust the position, height, inclination of the backrest, etc. of the seat surface. On the other hand, the front seats 13L and 13R with the electric specification are configured to electrically adjust the position, height, inclination of the backrest, etc. of the seat surface.
[0020] The wire harness system 20 includes left and right main common wire harnesses 21L and 21R, left and right sub-common wire harnesses 22L and 22R, left and right specification-specific wire harnesses 26L and 26R, and left and right common connectors 25L and 25R.
[0021] The left main common wire harness 21L is routed from the control device 19 to the left end of the passenger compartment 11, then routed downward to the upper surface of the floor panel 12, and then routed from the left end of the passenger compartment 11 toward the rear of the vehicle. Then, it rises behind the rear seat 14 and is routed toward the rear luggage compartment. The right main common wire harness 21R is arranged symmetrically with the left main common wire harness 21L at the right end of the passenger compartment 11.
[0022] The left sub-common wire harness 22L branches out from the left side of the left front seat 13L toward the center in the vehicle width direction and is routed under the floor panel 12 from the left end in the vehicle width direction toward the center in the vehicle width direction. The left specification-specific wire harness 26L is connected to the left sub-common wire harness 22L by the left common connector 25L. The left common connector 25L is arranged under the left front seat 13L.
[0023] The right sub-common wire harness 22R is arranged symmetrically with the left sub-common wire harness 22L. Also, the right common connector 25R is arranged symmetrically with the left common connector 25L.
[0024] The left and right main common wire harnesses 21L and 21R, and the left and right sub-common wire harnesses 22L and 22R are common wire harnesses having circuits common to the front seats 13L and 13R of the manual specification and the front seats 13L and 13R of the electric specification.
[0025] The left specification-specific wire harness 26L of the wire harness system 20 is composed of two types of wire harnesses: the manual wire harness 126L shown in FIG. 3 and the electric wire harness 226L shown in FIG. 4.
[0026] As shown in FIG. 3, the manual wire harness 126L has a circuit corresponding to the front seat 13L of the manual specification. For example, the manual wire harness 126L includes two control cables 27L and 28L, namely, a control cable 27L connected to a seating sensor (not shown) and a control cable 28L connected to a seat belt (not shown). An upper connector 24L, which will be described later, is connected to the end of the manual wire harness 126L.
[0027] As shown in FIG. 4, the electric wire harness 226L has a circuit corresponding to the front seat 13L of the electric specification. For example, in addition to the control cable 27L connected to a seating sensor (not shown) and the control cable 28L connected to a seat belt (not shown), the electric wire harness 226L includes three control cables 27L, 28L, and 29L, namely, a control cable 29L connected to a drive motor of the seat. An upper connector 24L, which will be described later, is connected to the end of the electric wire harness 226L.
[0028] As shown in FIGS. 3 and 4, the left common connector 25L is composed of an upper connector 24L connected to the end of the manual wire harness 126L or the end of the electric wire harness 226L, and a lower connector 23L attached to the sub-common wire harness 22L. When the upper connector 24L is connected to the connection port of the lower connector 23L, the upper connector 24L and the lower connector 23L are connected. The upper connector 24L connected to the end of the manual wire harness 126L and the upper connector 24L connected to the end of the electric wire harness 226L are connectors with the same structure. However, two control cables 27L and 28L are connected to the upper connector 24L connected to the end of the manual wire harness 126L, while three control cables 27L, 28L, and 29L are connected to the upper connector 24L connected to the end of the electric wire harness 226L.
[0029] The sub-common wire harness 22L is arranged below the floor panel 12. The lower connector 23L attached to the sub-common wire harness 22L is arranged so as to protrude upward from the floor panel 12 through the opening 12A provided in the floor panel 12. In this way, the lower connector 23L and the upper connector 24L of the common connector 25L are arranged on the floor panel 12 below the front seat 13L. Therefore, the connection of the upper connector 24L to the lower connector 23L can be performed above the floor panel 12.
[0030] The configuration of the right specification-specific wire harness 26R and the common connector 25R is symmetrical with that of the left specification-specific wire harness 26L and the common connector 25L, and the structure is the same, so the description is omitted.
[0031] Next, the process for updating the left front seat 13L of the manual specification attached to the vehicle 100 to the front seat 13L of the electric specification will be described.
[0032] First, remove the front seat 13L of the manual specification. As described above, since the lower connector 23L and the upper connector 24L are arranged on the floor panel 12 below the front seat 13L, when the front seat 13L is removed, the lower connector 23L and the upper connector 24L can be accessed.
[0033] Next, disconnect the upper connector 24L of the manual wire harness 126L from the lower connector 23L, and remove the manual wire harness 126L from the body 10. Then, connect the upper connector 24L of the electric wire harness 226L to the lower connector 23L. Then, install the front seat 13L of the electric specification, and connect the control cables 27L, 28L, and 29L of the electric wire harness 226L to the front seat 13L.
[0034] Thus, in the vehicle 100 of the embodiment, if the front seat 13L to be updated is removed, access can be obtained to the specification-specific wire harness 26L and the common connector 25L. Therefore, the specification-specific wire harness 26L can be easily replaced from the manual wire harness 126L with the electric wire harness 226L. Further, since there is no need to access the main common wire harness 21L and the sub-common wire harness 22L, fewer parts need to be removed during the update of the front seat 13L. Thereby, in the vehicle 100 of the embodiment, the front seat 13L can be easily updated.
[0035] In the above description, it has been described that when the front seat 13L is removed, access can be obtained to the lower connector 23L and the upper connector 24L of the common connector 25L, but the present invention is not limited thereto. For example, the common connector 25L may be disposed on the floor panel 12 beside the front seat 13L so that access can be obtained to the common connector 25L even in the vehicle-completed state without removing the front seat 13L. Alternatively, the common connector 25L may be disposed on the floor panel 12 within the reach under the front seat 13L. In this case, since access can be obtained to the specification-specific wire harness 26L and the common connector 25L in the vehicle-completed state, the specification-specific wire harness 26L can be more easily replaced from the manual wire harness 126L with the electric wire harness 226L.
[0036] Further, in the above description, it has been described that the sub-common wire harnesses 22L and 22R are disposed on the lower side of the floor panel 12 and the lower connector 23L is disposed so as to protrude above the floor panel 12 from the opening 12A provided in the floor panel 12, but the present invention is not limited thereto. For example, the sub-common wire harnesses 22L and 22R may be disposed on the upper side of the floor panel 12 and the lower connector 23L may be configured to be disposed on the upper side of the floor panel 12.
[0037] In the above description, the specification-specific wire harness 26L was described as being composed of two types of wire harnesses, namely the manual wire harness 126L and the electric wire harness 226L. However, if the specification-specific wire harness 26L is composed of multiple types of wire harnesses having different circuits for each specification of in-vehicle equipment, it may be composed of three or more types of wire harnesses.
[0038] In the above description, the in-vehicle equipment for which multiple specifications can be selected was described as being the front seats 13L and 13R, but it is not limited to this. For example, the in-vehicle equipment for which multiple specifications can be selected may be the safety equipment of the vehicle 100 or other electrical equipment.
Description of Reference Numerals
[0039] 10 Body, 11 Passenger Compartment, 12 Floor Panel, 12A Opening, 13L, 13R Front Seats, 14 Rear Seat, 15 Steering Wheel, 16L, 16R Front Doors, 17L, 17R Rear Doors, 18 Front Compartment, 19 Control Device, 20 Wire Harness System (Vehicle Wire Harness System), 21L, 21R Main Common Wire Harnesses, 22L, 22R Sub-Common Wire Harnesses, 23L Lower Connector, 24L Upper Connector, 25L, 25R Common Connectors, 26L, 26R Specification-Specific Wire Harnesses, 27L, 28L Control Cables, 100 Vehicle, 126L Manual Wire Harness, 226L Electric Wire Harness.
Claims
1. A vehicle comprising a vehicle wire harness system, wherein the vehicle wire harness system includes: a common wire harness having a circuit common to each specification of in-vehicle equipment capable of selecting a plurality of specifications; a plurality of types of specification-specific wire harnesses each having a different circuit for each specification of the in-vehicle equipment and connecting the common wire harness and the in-vehicle equipment; and a common connector capable of connecting the common wire harness and each type of the specification-specific wire harnesses, wherein the common connector is disposed at a position accessible in a vehicle-completed state, characterized by the vehicle.
2. The vehicle according to claim 1, wherein the common connector is accessible with the in-vehicle equipment removed, characterized by the vehicle.
3. The vehicle according to claim 1, wherein the in-vehicle equipment is a seat capable of selecting a manual specification and an electric specification, the common wire harness has a circuit common to a manual seat and an electric seat, the specification-specific wire harnesses include a manual wire harness connecting the common wire harness and the manual seat and an electric wire harness connecting the common wire harness and the electric seat, and the common connector is disposed on an upper surface of a floor panel below the seat, characterized by the vehicle.
4. The vehicle according to claim 3, wherein the common connector is accessible with the seat removed, characterized by the vehicle.
5. A vehicle wire harness system, A common wire harness having a circuit common to each specification of in-vehicle equipment for which a plurality of specifications can be selected, A plurality of types of specification-specific wire harnesses having circuits different for each specification of the in-vehicle equipment and connecting the common wire harness and the in-vehicle equipment, A common connector capable of connecting the common wire harness and the various types of specification-specific wire harnesses, and A vehicle wire harness system characterized by the above.
Citation Information
Patent Citations
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