A soft wire and a wire harness wear optimization structure and an AMT gearbox gear controller

Abstract

The application discloses a soft wire and a gear controller of an AMT gearbox, and belongs to the technical field of the gear controller of the AMT gearbox. The gear controller comprises a shell stand arranged on a gear controller shell, a soft wire and a protective cover. Two ends of the soft wire are respectively used for connecting a circuit connecting plate and a PCB plate. A reinforcing area is arranged in an easy-wear area of the soft wire. The protective cover is wrapped on the outer surface of the shell stand and is used for isolating the soft wire from the shell stand. The reinforcing area arranged in the easy-wear area of the soft wire and the protective cover arranged between the soft wire and the shell stand can significantly reduce the wear probability of the soft wire, avoid the replacement of the SCU assembly due to wear, reduce the after-sales cost, and improve the reliability of the AMT gearbox.

Description

Technical Field

[0001] This application belongs to the technical field of gearbox gear position controllers, and specifically relates to a flexible flat cable and a wear optimization structure for the wiring harness, and a gear position controller for an AMT gearbox. Background Technology

[0002] Currently, the market penetration rate of semi-automatic manual transmissions (AMT) in commercial vehicles is gradually increasing, and the requirements for transmission reliability are also becoming more stringent. Among these, the shift control unit (SCU) of the transmission is complex in structure, highly integrated, and highly electrified, but its after-sales maintenance capabilities are insufficient. Once a failure occurs, the entire SCU often needs to be replaced, resulting in high repair costs and significant economic losses for both manufacturers and users, thus hindering the further promotion of AMT transmissions.

[0003] Specifically, in the AMT aftermarket, a large number of SCU flexible cables and harnesses fail due to wear, leading to problems such as sensor errors and the inability of the vehicle to shift gears. However, existing technologies lack effective protective measures against wear on the flexible cables, and repairs can only be carried out by replacing the entire SCU assembly, which further increases after-sales costs. Utility Model Content

[0004] The purpose of this application is to provide an optimized structure for the wear of flexible flat cables and wiring harnesses, and a gear position controller for an AMT transmission. This addresses the problem mentioned in the background art where, in the AMT aftermarket, a large number of SCU (Soft Flat Cabling) components experience wear failures, leading to sensor errors and the vehicle's inability to engage gears. This necessitates replacing the entire SCU assembly for repairs, significantly increasing after-sales costs.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A flexible flat cable and wire harness wear optimization structure includes a housing column, a flexible flat cable, and a protective cover installed on the housing of a gear controller.

[0007] The two ends of the flexible flat cable are used to connect the circuit connection board and the PCB board, respectively, and the wear-prone areas of the flexible flat cable are provided with reinforcement areas.

[0008] The protective cover covers the outer surface of the housing column and is used to isolate the flexible flat cable from the housing column.

[0009] In one possible implementation, the protective cover is mounted to the gear controller housing by a first fixing bolt, and the first fixing bolt is mounted on the side of the housing column away from the flexible cable.

[0010] In one possible implementation, the protective cover is made of soft rubber.

[0011] In one possible implementation, the reinforcing area is located at the contact point between the flexible cable and the housing column.

[0012] In one possible implementation, the reinforcing region uses a PI film to reinforce the flexible flat cable.

[0013] In one possible implementation, the thickness of the reinforcing region is 1.2-1.8 times the thickness of the flexible flat cable substrate.

[0014] In one possible implementation, the circuit board is soldered to the flexible flat cable via solder pins and fixed to the gear controller housing via a second fixing bolt.

[0015] In one possible implementation, the PCB board is fixed to the gear controller housing by a third fixing bolt, and the flexible flat cable is connected to the PCB board by a connector.

[0016] In one possible implementation, the protective cover has a U-shaped groove structure, and the opening side of the protective cover faces the vibration direction of the flexible flat cable.

[0017] Secondly, a gear position controller for an AMT transmission is provided, including the flexible flat cable and the wire harness wear optimization structure described in the first aspect.

[0018] Compared with the prior art, this application has the following beneficial effects:

[0019] This application provides a wear optimization structure for flexible flat cables and wiring harnesses. By setting reinforcement zones in the wear-prone areas of the flexible flat cable, the strength and wear resistance of the flexible flat cable in key parts are improved, reducing the risk of damage caused by friction. At the same time, a protective cover covers the outer column of the housing, effectively isolating the flexible flat cable from direct contact with the housing column and preventing friction between the two when the vehicle vibrates. Through dual-dimensional optimization of "enhancing the strength of the flexible flat cable itself" and "isolating the wear source," the probability of wear of the flexible flat cable is significantly reduced, thereby reducing the replacement of the SCU assembly due to flexible flat cable failure and lowering after-sales maintenance costs.

[0020] In one possible implementation, reinforcement zones are placed in the easily worn areas of the flexible flat cable, improving its strength and wear resistance in critical parts and reducing the risk of damage due to friction. Simultaneously, a protective cover surrounds the housing pillars, effectively isolating the flexible flat cable from direct contact with the housing pillars and preventing friction between them during vehicle vibrations. Through this dual-dimensional optimization of "enhancing the strength of the flexible flat cable itself" and "isolating wear sources," the probability of wear on the flexible flat cable is significantly reduced, thereby reducing the need for SCU assembly replacement due to flexible flat cable failure and lowering after-sales maintenance costs.

[0021] In one possible implementation, the reinforcement area is placed at the actual contact point between the flexible flat cable and the housing pillar, which can specifically enhance the wear resistance of the flexible flat cable in high-risk areas. Compared to full-area reinforcement, this design can precisely improve the strength of key parts while avoiding material waste and reducing costs. When the flexible flat cable comes into contact with the housing pillar, the reinforcement area can effectively resist friction and prevent damage to the flexible flat cable substrate, thereby ensuring the stability of the circuit connection and reducing faults such as sensor errors.

[0022] In one possible implementation, the reinforcement area is placed at the actual contact point between the flexible flat cable and the housing pillar, which can specifically enhance the wear resistance of the flexible flat cable in high-risk areas. Compared to full-area reinforcement, this design can precisely improve the strength of key parts while avoiding material waste and reducing costs. When the flexible flat cable comes into contact with the housing pillar, the reinforcement area can effectively resist friction and prevent damage to the flexible flat cable substrate, thereby ensuring the stability of the circuit connection and reducing faults such as sensor errors.

[0023] One possible approach is to limit the thickness of the reinforcing zone within a reasonable range, achieving a balance between enhanced wear resistance and maintaining the flexibility of the flexible flat cable. Insufficient thickness limits wear resistance; excessive thickness affects the bending performance of the flat cable, potentially leading to new failures in other areas due to stress concentration. A thickness design of 1.2-1.8 times significantly improves the wear resistance of the contact area while ensuring the flat cable can swing normally during vibration, avoiding additional damage caused by increased rigidity, thus optimizing both functionality and reliability.

[0024] A gear shift controller for an AMT (Automated Manual Transmission) achieves a balance between enhancing wear resistance and maintaining the flexibility of the flexible flat cable by limiting the thickness of the reinforcing zone within a reasonable range. Insufficient thickness limits wear resistance, while excessive thickness affects the bending performance of the flat cable, potentially leading to stress concentration and new failures in other areas. A thickness design of 1.2-1.8 times the normal stiffness significantly improves the wear resistance of the contact area while ensuring the flat cable can oscillate normally during vibration, avoiding additional damage caused by increased rigidity, thus optimizing both functionality and reliability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a flexible flat cable and a wire harness wear optimization structure provided in this application.

[0026] The attached figures are labeled as follows: 10, gear controller housing; 11, housing column; 12, housing bolt column; 20, flexible flat cable; 21, reinforcement area; 22, connector; 30, PCB board; 40, circuit connection board; 41, solder pin; 50, protective cover; 60, third fixing bolt; 70, second fixing bolt; 80, first fixing bolt. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] like Figure 1 As shown, this application discloses a flexible flat cable and wire harness wear optimization structure, which may include a housing column 11, a flexible flat cable 20, and a protective cover 50 disposed on the gear controller housing 10.

[0034] Specifically, the housing column 11 can be fixed to the gear position controller housing 10 by bolts, or it can be integrally connected and fixed to the gear position controller housing 10.

[0035] The protective cover 50 covers the outer surface of the housing column 11 and is used to isolate the flexible flat cable 20 from the housing column 11.

[0036] The flexible flat cable 20 is used to connect the circuit connection board 40 and the PCB board 30 at both ends, and the flexible flat cable 20 has a reinforcement area 21 in the wear-prone area.

[0037] One end of the flexible flat cable 20 is fixed to the circuit connection board 40, which is fixed to the gear controller housing 10; the other end is fixed to the PCB board 30 via the connector 22, which is also fixed to the gear controller housing 10.

[0038] The wear-prone area of ​​the flexible flat cable 20, namely the contact part with the housing column 11, is provided with a reinforcing area 21.

[0039] The protective cover 50 covers the outer surface of the housing column 11. The protective cover 50 is installed on the gear controller housing 10, and the protective cover 50 is positioned between the flexible cable 20 and the housing column 11 to isolate the two.

[0040] In this embodiment, a reinforcement area 21 is provided in the wear-prone area of ​​the flexible flat cable 20, which improves the strength and wear resistance of the flexible flat cable 20 in key parts and reduces the risk of damage caused by friction. At the same time, the protective cover 50 covers the outer part of the housing column 11, effectively isolating the flexible flat cable 20 from direct contact with the housing column 11 and preventing friction between the two when the vehicle vibrates. Through the dual-dimensional optimization of "enhancing the strength of the flexible flat cable 20" and "isolating the wear source", the wear probability of the flexible flat cable 20 is significantly reduced, thereby reducing the replacement of the SCU assembly due to the failure of the flexible flat cable 20 and reducing after-sales maintenance costs.

[0041] In one possible embodiment, the protective cover 50 is mounted to the gear controller housing 10 by a first fixing bolt 80, and the mounting position of the first fixing bolt 80 is located on the side away from the flexible cable 20.

[0042] Optionally, after the protective cover 50 is fitted over the housing column 11, it is fastened to the gear controller housing 10 by inserting the first fixing bolt 80 through the side of the housing column 11 facing away from the flexible cable 20. In fact, the gear controller housing 10 is provided with a housing bolt post 12, and the protective cover 50 is fixed to the housing bolt post 12 by the first fixing bolt 10, thereby ensuring that the protective cover 50 detaches from the housing column 11 when the vehicle vibrates.

[0043] In this embodiment, the first fixing bolt 80 is installed on the side away from the flexible flat cable 20, which avoids additional interference or wear on the flexible flat cable 20 caused by the bolt head or threads, while ensuring the installation stability of the protective cover 50. This ensures that the protective cover 50, while isolating the flexible flat cable 20 from the housing column 11, does not become a new source of wear, and that the protective cover 50 maintains effective protection for the flexible flat cable 20 after installation, thus improving the reliability and durability of the structure.

[0044] In one possible embodiment, the protective cover 50 is made of soft rubber.

[0045] Optionally, the protective cover 50 is made of soft rubber with low hardness, such as Shore A hardness of 40-60A, and has good elasticity and flexibility. When the protective cover 50 is fitted onto the outer surface of the housing column 11, it can reduce wear between the flexible flat cable 20 and the housing column 11 during vibration contact.

[0046] In this embodiment, the protective cover 50 made of soft rubber has low hardness and high elasticity. When the flexible flat cable 20 comes into contact with the protective cover 50 due to vehicle vibration, the rubber material can buffer the impact force through deformation, avoiding hard friction damage to the flexible flat cable 20. Compared with metal or hard plastic protective covers 50, soft rubber material can more effectively reduce the wear coefficient, while its aging resistance can ensure the protective effect during long-term use, further extending the service life of the flexible flat cable 20.

[0047] In one possible embodiment, the reinforcing area 21 is provided at the contact point between the flexible flat cable 20 and the housing column 11.

[0048] Specifically, the reinforcement area 21 is precisely positioned at the contact point between the flexible flat cable 20 and the housing pillar 11. When the vehicle is in operation, the flexible flat cable 20 will swing in a direction perpendicular to its plane due to vibration, and this contact point is the potential friction area between the flexible flat cable 20 and the housing pillar 11.

[0049] The reinforcing area 21 can be fixed to the surface of the flexible flat cable 20 by means of adhesive or hot pressing, completely covering the contact area.

[0050] In this embodiment, the reinforcing area 21 is positioned at the actual contact point between the flexible flat cable 20 and the housing pillar 11, which specifically enhances the wear resistance of the flexible flat cable 20 in high-risk areas. Compared to full-area reinforcement, this design can precisely improve the strength of key components while avoiding material waste and reducing costs. When the flexible flat cable 20 contacts the housing pillar 11, the reinforcing area 21 effectively resists friction, preventing damage to the substrate of the flexible flat cable 20, thereby ensuring the stability of the circuit connection and reducing faults such as sensor errors.

[0051] In one possible embodiment, the reinforcing region 21 uses a PI film to reinforce the flexible flat cable 20.

[0052] Optionally, the reinforcing area 21 uses a PI film to reinforce the flexible flat cable 20. The PI film is adhered to the easily worn areas of the flexible flat cable 20 with adhesive, or bonded to the substrate of the flexible flat cable 20 through a hot-pressing process to form a reinforcing layer of uniform thickness. The size of the PI film covers the contact area between the flexible flat cable 20 and the housing column 11, and the edge portion can extend 1-2 mm beyond the contact area to ensure comprehensive protection.

[0053] In this embodiment, the PI film possesses excellent wear resistance and mechanical strength, with its wear resistance being several times that of ordinary flexible flat cable 20 substrate, effectively resisting friction between the flexible flat cable 20 and the housing pillar 11. Simultaneously, the PI film also exhibits high-temperature resistance and chemical corrosion resistance, adapting to the complex operating conditions inside the gearbox and resisting aging and cracking with long-term use. Through PI film reinforcement, the service life of the flexible flat cable 20 under contact wear scenarios is also increased, significantly reducing the probability of failure due to wear.

[0054] In one possible embodiment, the thickness of the reinforcing region 21 is 1.2-1.8 times the thickness of the substrate of the flexible flat cable 20.

[0055] Specifically, the thickness of the reinforcing region 21 is controlled to be 1.2-1.8 times the thickness of the substrate of the flexible flat cable 20. For example, if the substrate thickness of the flexible flat cable 20 is 0.1mm, then the PI film thickness is 0.12-0.18mm. This thickness is achieved by selecting a suitable PI film or stacking multiple layers of PI film, ensuring that the reinforcing region 21 has sufficient wear resistance without affecting the flexibility of the flexible flat cable 20 due to excessive thickness.

[0056] In this embodiment, limiting the thickness of the reinforcing region 21 within a reasonable range achieves a balance between enhancing wear resistance and maintaining the flexibility of the flexible flat cable 20. Insufficient thickness results in limited wear resistance; excessive thickness affects the bending performance of the flexible flat cable 20, potentially leading to new failures in other areas due to stress concentration. A thickness design of 1.2-1.8 times significantly improves the wear resistance of the contact area while ensuring the flexible flat cable 20 can swing normally during vibration, avoiding additional damage caused by increased rigidity, thus optimizing both functionality and reliability.

[0057] In one possible embodiment, the circuit connection board 40 is soldered to the flexible flat cable 20 by solder pins 41 and fixed to the gear controller housing 10 by the second fixing bolt 70.

[0058] Specifically, the circuit connection board 40 is soldered to the flexible flat cable 20 via solder pins 41: the solder pins 41 are vertically fixed to the circuit connection board 40, and the conductive lines of the flexible flat cable 20 are soldered to the solder pins 41 to form an electrical connection. The circuit connection board 40 is fixed to the gear position controller housing 10 by a second fixing bolt 70. The second fixing bolt 70 passes through the mounting hole of the circuit connection board 40 and engages with the threaded hole on the gear position controller housing 10 to tighten it, ensuring that the circuit connection board 40 is securely installed.

[0059] In this embodiment, the welding process of the welding pin 41 ensures the reliability of the electrical connection between the flexible flat cable 20 and the circuit connection board 40, reducing contact resistance and signal loss. By fixing the circuit connection board 40 to the gear shift controller housing 10 with the second fixing bolt 70, the circuit connection board 40 is prevented from shaking during vehicle vibrations, thus preventing the flexible flat cable 20 from cracking due to repeated pulling. Therefore, the stability of the circuit connection is ensured, and the rigid fixation reduces the additional stress on the flexible flat cable 20, indirectly reducing the risk of wear and improving the overall structural durability.

[0060] In one possible embodiment, the PCB board 30 is fixed to the gear controller housing 10 by a third fixing bolt 60, and the flexible flat cable 20 is connected to the PCB board 30 by a connector.

[0061] Specifically, the PCB board 30 is fixed to the gear controller housing 10 by a third fixing bolt 60. The third fixing bolt 60 passes through the mounting hole of the PCB board 30 and is tightened by engaging with the bolt post on the housing. The flexible flat cable 20 is connected to the PCB board 30 via a connector: the connector 22 is fixed at the interface position of the PCB board 30, and the other end of the flexible flat cable 20 is inserted into the connector and fixed by a snap-fit ​​or locking structure to form a reliable electrical connection.

[0062] In this embodiment, the PCB board 30 is rigidly fixed to the gear controller housing 10 by the third fixing bolt 60, which prevents it from shifting during vibration, thereby ensuring the positional stability of the connector 22 and reducing wear on the flexible flat cable 20 caused by connector shaking. The flexible flat cable 20 is connected to the PCB board 30 via a connector, which is easier to disassemble and maintain than direct soldering. It can be quickly plugged in and unplugged when maintenance is required, improving after-sales maintenance efficiency. Therefore, it ensures the reliability of the circuit connection while taking into account the convenience of assembly and maintenance, reducing the risk of wear on the flexible flat cable 20 due to structural loosening.

[0063] In one possible embodiment, the protective cover 50 has a U-shaped groove structure, and the opening side of the protective cover 50 faces the vibration direction of the flexible flat cable 20.

[0064] Optionally, the protective cover 50 has a U-shaped groove structure with a U-shaped cross-section. The opening side faces the vibration direction of the flexible flat cable 20, that is, the direction perpendicular to the plane of the flexible flat cable 20. The two side walls of the U-shaped groove wrap around the sides of the housing column 11, and the bottom is attached to the bottom surface of the housing column 11. The opening side faces the swing path of the flexible flat cable 20, ensuring that the flexible flat cable 20 contacts the protective cover 50 first when it vibrates.

[0065] In this embodiment, the U-shaped groove structure of the protective cover 50 forms a semi-enclosed enclosure of the housing column 11 through its side walls and bottom. Compared to a flat plate structure, it provides a wider protection range for the flexible flat cable 20, effectively covering the vertical vibration path of the cable 20. The design of the opening side facing the vibration direction allows the cable 20 to directly impact the inner wall of the protective cover 50 when vibrating, while the U-shaped groove structure guides the swing trajectory of the cable 20 through the side walls, reducing the probability of its contact with the housing column 11. Therefore, it not only enhances the impact resistance of the protective cover 50 but also further reduces the risk of wear and tear, improving the protective effect.

[0066] In one possible embodiment, a gear position controller for an AMT transmission is provided, including, in the first aspect, a flexible flat cable and a wiring harness wear optimization structure.

[0067] Specifically, the gear position controller of the AMT transmission includes the aforementioned flexible flat cable and wire harness wear optimization structure. That is, the housing of the gear position controller integrates components such as housing column 11, flexible flat cable 20, and protective cover 50, and the connection relationship, installation method and material characteristics of each component all comply with the limitations of the aforementioned claims.

[0068] In this embodiment, the optimized structure for flexible flat cable and wiring harness wear is applied to the gear position controller of the AMT transmission, which directly improves the reliability of the gear position controller. Through the design of the protective cover 50 isolating the housing pillar 11 and the flexible flat cable 20, and the PI film reinforcing easily worn areas, problems such as sensor errors and vehicle inability to engage gears due to wear of the flexible flat cable 20 are effectively solved. This gear position controller eliminates the need for frequent replacement of the SCU assembly, reducing after-sales maintenance costs and minimizing vehicle downtime caused by maintenance, thus improving the operational efficiency of commercial vehicles and providing a reliable guarantee for the further promotion and application of AMT transmissions.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A flexible flat cable and wire harness wear optimization structure, characterized in that, Includes a housing column (11), a flexible cable (20), and a protective cover (50) mounted on the gear position controller housing (10); The two ends of the flexible flat cable (20) are used to connect the circuit connection board (40) and the PCB board (30) respectively. The wear-prone area of ​​the flexible flat cable (20) is provided with a reinforcement area (21). The protective cover (50) covers the outer surface of the housing column (11) and is used to isolate the flexible flat cable (20) from the housing column (11).

2. The wear optimization structure for flexible flat cable and wire harness according to claim 1, characterized in that: The protective cover (50) is installed on the gear controller housing (10) by a first fixing bolt (80), and the installation position of the first fixing bolt (80) is located on the side away from the flexible cable (20).

3. The wear optimization structure for flexible flat cable and wire harness according to claim 1, characterized in that: The protective cover (50) is made of soft rubber.

4. The wear optimization structure for flexible flat cable and wire harness according to claim 1, characterized in that: The reinforcing area (21) is located at the contact point between the flexible flat cable (20) and the housing column (11).

5. The wear optimization structure for flexible flat cable and wire harness according to claim 1, characterized in that: The reinforcement area (21) is reinforced with a PI film for the flexible flat cable (20).

6. The wear optimization structure for flexible flat cable and wire harness according to claim 1, characterized in that: The thickness of the reinforcing area (21) is 1.2-1.8 times the thickness of the substrate of the flexible flat cable (20).

7. The wear optimization structure for flexible flat cable and wire harness according to claim 1, characterized in that: The circuit connection board (40) is welded to the flexible flat cable (20) by soldering pins (41) and fixed to the gear controller housing (10) by the second fixing bolt (70).

8. The wear optimization structure for flexible flat cable and wire harness according to claim 1, characterized in that: The PCB board (30) is fixed to the gear controller housing (10) by the third fixing bolt (60), and the flexible flat cable (20) is connected to the PCB board (30) by the connector.

9. The wear optimization structure for flexible flat cable and wire harness according to claim 1, characterized in that: The protective cover (50) has a U-shaped groove structure, and the opening side of the protective cover (50) faces the vibration direction of the flexible flat cable (20).

10. A gear position controller for an AMT transmission, characterized in that: Includes the flexible flat cable and wire harness wear optimization structure as described in any one of claims 1-9.

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