Vehicles and vehicle wire harness systems
The vehicle wire harness system facilitates easy updates of in-vehicle equipment by enabling direct access and replacement of specification-specific wire harnesses through a common connector system, reducing the need to remove the main wire harness, thus lowering costs and complexity.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2023-12-04
- Publication Date
- 2026-07-22
AI Technical Summary
The high cost and complexity of updating in-vehicle equipment due to the need to access and detach the wire harness, which is initially attached to the vehicle body during assembly, are significant challenges.
A vehicle wire harness system with a common wire harness and specification-specific wire harnesses, along with a common connector, allows easy access and replacement of specification-specific wire harnesses without needing to remove the main common wire harness, by positioning connectors to protrude from the floor panel for easy access.
Enables easy updates of in-vehicle equipment by allowing direct access to specification-specific wire harnesses, reducing the number of parts that need to be removed, thereby lowering the cost and complexity of equipment upgrades.
Smart Images

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Abstract
Description
Technical Field
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[0001] The present disclosure relates to the structure of a vehicle equipped with a vehicle wire harness system and the configuration of the vehicle wire harness system.
Background Art
[0002] Patent Document 1 discloses a wire harness connection structure that enables a common wire harness to be connected 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 array-recombining one end side of a plurality of electric wires in accordance with the terminal array of the connector connection portion of the device, has a device-side connector connected to the device, and has a harness-side connector connected to the connector of the wire harness at 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, many parts need to be removed 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 problem]
[0006] The vehicle of this disclosure is a vehicle equipped with a vehicle wire harness system, the vehicle wire harness system is It is routed on the underside of the floor panel, The system includes a common wire harness having a common circuit for each specification of an in-vehicle equipment that allows for the selection of multiple specifications, multiple 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 that can connect the common wire harness and each type of specification-specific wire harness, wherein the common connector is The system consists of a lower connector attached to the common wire harness and an upper connector connected to the specification-specific wire harness, wherein the lower connector is positioned to protrude upward from an opening formed in the floor panel, the upper connector is detachably attached to the lower connector on the upper side of the floor panel, the vehicle-mounted equipment is a vehicle seat, the lower connector is located outside the vehicle width direction of the vehicle seat and outside the area below the vehicle seat, and is positioned to be accessible from the side of the vehicle seat without removing the vehicle seat. It is characterized by the following.
[0007] This allows access to specification-specific wire harnesses and common connectors in the completed vehicle, making it easy to replace specification-specific wire harnesses. Furthermore, since access to the common wire harness is unnecessary, fewer parts need to be removed when updating on-board equipment. This allows for easy updates of on-board equipment.
[0010] In the vehicle disclosed herein, Vehicle seats are Manual and electric versions are available. And, The common wire harness has a common circuit for both manual and electric seats, and the specification-specific wire harness includes a manual wire harness connecting the common wire harness to the manual seat, and an electric wire harness connecting the common wire harness to the electric seat. The aforementioned upper connector is configured to be connectable to either the manual wire harness or the electric wire harness. That's good too.
[0011] This makes it easy to upgrade a manual seat to an electric seat. [Effects of the Invention]
[0015] This disclosure enables the provision of vehicles that allow for easy updating of in-vehicle equipment. [Brief explanation of the drawing]
[0016] [Figure 1] This is a plan view of the vehicle according to the embodiment, showing the passenger compartment with the roof removed. [Figure 2] Figure 1 is an elevation view of the vehicle as seen from the left side. [Figure 3] This is a perspective view showing a wire harness system to be installed in a vehicle according to the embodiment, in which a manual wire harness is connected to a common wire harness. [Figure 4] This is a perspective view showing a wire harness system to be installed in a vehicle according to the embodiment, in which the electric wire harness is connected to the common wire harness. [Modes for carrying out the invention]
[0017] The vehicle 100 equipped with a vehicle wire harness system 20 (hereinafter referred to as the wire harness system 20) will be described below with reference to the drawings. FR, UP, and RH in each figure indicate the front, top, and right sides of the vehicle 100, respectively. The opposite directions of FR, UP, and RH indicate the rear, bottom, and left sides. Hereafter, when simply using the directions front / back, left / right, and up / down, unless otherwise specified, these refer to the front / back, left / right, and up / down directions of the vehicle 100.
[0018] As shown in Figures 1 and 2, the vehicle 100 comprises a body 10 having a passenger compartment 11 and a wire harness system 20. On the floor panel 12 that constitutes the passenger compartment 11 are the left and right front seats 13L and 13R and the rear seat 14. A handle 15 is also provided in front of the right front seat 13R. The body 10 is also 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 installed inside the front compartment 18 at the front of the passenger compartment 11.
[0019] The front seats 13L and 13R are in-vehicle equipment that can select multiple specifications of manual and electric specifications. The front seats 13L and 13R of 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 of 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 that have 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: 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: 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 Figures 3 and 4, the left common connector 25L consists of an upper connector 24L that connects to the end of the manual wire harness 126L or the end of the electric wire harness 226L, and a lower connector 23L that is 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 of 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 secondary common wire harness 22L is routed on the underside of the floor panel 12. The lower connector 23L attached to the secondary common wire harness 22L is positioned to protrude upward from the opening 12A provided in the floor panel 12. Thus, the lower connector 23L and upper connector 24L of the common connector 25L are located 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 made on the upper side of the floor panel 12.
[0030] The configuration of the specification-specific wire harness 26R and common connector 25R on the right is symmetrical and structurally identical to the specification-specific wire harness 26L and common connector 25L on the left, so no explanation is necessary.
[0031] Next, we will explain the process of upgrading the manually operated left front seat 13L installed in vehicle 100 to an electrically operated front seat 13L.
[0032] First, remove the manual front seat 13L. As explained earlier, the lower connector 23L and upper connector 24L are located on the floor panel 12 below the front seat 13L, so removing the front seat 13L will allow access to the lower connector 23L and upper connector 24L.
[0033] Next, disconnect the upper connector 24L of the manual wiring harness 126L from the lower connector 23L, and remove the manual wiring harness 126L from the body 10. Then, connect the upper connector 24L of the electric wiring harness 226L to the lower connector 23L. Finally, install the electric front seat 13L and connect the control cables 27L, 28L, and 29L of the electric wiring harness 226L to the front seat 13L.
[0034] Thus, in the vehicle 100 of this embodiment, by removing the front seat 13L to be updated, the specification-specific wire harness 26L and the common connector 25L can be accessed, making it easy to replace the specification-specific wire harness 26L from the manual wire harness 126L to the electric wire harness 226L. Furthermore, since access to the main common wire harness 21L and the sub-common wire harness 22L is not required, fewer parts need to be removed when updating the front seat 13L. As a result, the front seat 13L can be easily updated in the vehicle 100 of this embodiment.
[0035] The above explanation assumes that when the front seat 13L is removed, the lower connector 23L and upper connector 24L of the common connector 25L become accessible, but this is not limited to this. For example, the common connector 25L may be placed on the floor panel 12 next to the front seat 13L so that it can be accessed in the completed vehicle state without removing the front seat 13L. Alternatively, the common connector 25L may be placed on the floor panel 12 within reach below the front seat 13L. In this case, since the specification-specific wire harness 26L and the common connector 25L are accessible in the completed vehicle state, the specification-specific wire harness 26L can be more easily replaced from the manual wire harness 126L to the electric wire harness 226L.
[0036] Furthermore, while the above description assumes that the sub-common wire harnesses 22L and 22R are routed on the underside of the floor panel 12 and the lower connector 23L is positioned to protrude upward from the opening 12A provided in the floor panel 12, the configuration is not limited to this. For example, the sub-common wire harnesses 22L and 22R may be routed on the upper side of the floor panel 12, and the lower connector 23L may be positioned on the upper side of the floor panel 12.
[0037] Furthermore, while the above explanation assumed that the specification-specific wire harness 26L consists of two types of wire harnesses, the manual wire harness 126L and the electric wire harness 226L, the specification-specific wire harness 26L may consist of three or more types of wire harnesses, as long as each type of wire harness has a different circuit for each specification of the in-vehicle equipment.
[0038] In the above explanation, the in-vehicle equipment with selectable specifications was described as the front seats 13L and 13R, but it is not limited to these. For example, the in-vehicle equipment with selectable specifications may be the vehicle's safety equipment or other electrical equipment. [Explanation of symbols]
[0039] 10 Body, 11 Passenger compartment, 12 Floor panel, 12A Opening, 13L, 13R Front seats, 14 Rear seats, 15 Steering wheel, 16L, 16R Front doors, 17L, 17R Rear doors, 18 Front compartment, 19 Control unit, 20 Wire harness system (Vehicle wire harness system), 21L, 21R Main common wire harness, 22L, 22R Sub-common wire harness, 23L Lower connector, 24L Upper connector, 25L, 25R Common connector, 26L, 26R Specification-specific wire harness, 27L, 28L Control cable, 100 Vehicle, 126L Wire harness for manual, 226L Wire harness for electric.
Claims
1. A vehicle equipped with a vehicle wire harness system, The aforementioned vehicle wire harness system is A common wire harness is routed on the underside of the floor panel and has a common circuit for each specification of the in-vehicle equipment, which has multiple selectable specifications. Multiple types of specification-specific wire harnesses are provided, each having a different circuit for each specification of the in-vehicle equipment, and connecting the common wire harness and the in-vehicle equipment. Includes a common connector capable of connecting the aforementioned common wire harness and each type of the aforementioned specification-specific wire harness, The common connector consists of a lower connector attached to the common wire harness and an upper connector connected to the specification-specific wire harness. The lower connector is positioned to protrude upward from an opening formed in the floor panel, The upper connector is detachably connected to the lower connector on the upper side of the floor panel. The aforementioned in-vehicle equipment is a vehicle seat. The lower connector is located outside the vehicle width direction of the vehicle seat and outside the area below the vehicle seat, and is positioned to be accessible from the side of the vehicle seat without removing the vehicle seat. A vehicle characterized by the following features.
2. A vehicle according to claim 1, The aforementioned vehicle seat is available in both manual and electric versions. The aforementioned common wire harness has a common circuit for both the manual and electric seats. The aforementioned specification-specific wire harness includes a manual wire harness for connecting the common wire harness to a manual seat, and an electric wire harness for connecting the common wire harness to an electric seat. The aforementioned upper connector is configured to be connectable to either the manual wire harness or the electric wire harness. A vehicle characterized by the following features.