Connector and diagnostic cable

Abstract

A connector and a diagnostic cable, the diagnostic cable including two connectors and a cable, where the cable connects the two connectors, each of the two connectors including a first end for connection with a USB Type-C female and a second end for connection with the cable, each connector including a first chip, the first chip including a second chip for connection with a USB Type-C female, and the second chip including a second chip for connection with the cable. The first chip is arranged between the first end and the second end, the first chip is used for receiving a first signal, and the first signal comprises a controller area network (CAN) signal; converting the CAN signal according to a first preset protocol to obtain a converted CAN signal; and sending the converted CAN signal. The connector and the diagnosis cable can be applied to the field of vehicle-mounted diagnosis such as ECU firmware upgrading, the diagnosis speed is increased, and the compatibility of a diagnosis interface used for being connected with the diagnosis cable is improved.

Description

Connectors and diagnostic cables Technical Field

[0001] The present application relates to the field of fault diagnosis, and more specifically, to a connector and a diagnostic cable. Background Art

[0002] An on-board diagnostic (OBD) system (OBD) is an online diagnostic system used in vehicles to monitor vehicle health and control emissions. The system collects information from internal vehicle sensors and then uses this data to adjust vehicle systems or report issues to the user. The vehicle provides diagnostic information to diagnostic instruments via a diagnostic interface, based on the Controller Area Network (CAN) and Ethernet (ETH). The OBD system can be used to flash and update the firmware of electronic control units (ECUs) in vehicles. Vehicles contain hundreds of ECUs, and the firmware size of small ECUs can reach megabytes (MB) and even gigabytes (GB). Current protocols for OBD transmission rates typically limit the Ethernet bus to 100 megabits per second (Mbps), while the CAN bus typically has a transmission rate of 500 kilobits per second (Kbps). This results in slow speeds and long latency (often measured in hours) when performing OBD updates, resulting in a poor user experience. However, the pins (PINs) reserved for the current on-board diagnostics (OBD) interface cannot well support the migration of the on-board diagnostics rate to gigabit Ethernet (GE) or even 10GE.

[0003] In view of this, a diagnostic solution that helps to improve the diagnostic speed of the on-board diagnostic system is in urgent need of development.

[0004] Summary of the Invention

[0005] The present application provides a connector and a diagnostic cable that can improve the diagnostic speed of an on-board diagnostic system and the compatibility of a diagnostic interface.

[0006] In a first aspect, a connector is provided, comprising a first end and a second end, the first end being used to connect to a universal serial bus (USB) Type-C female connector, and the second end being used to connect to a cable, the connector comprising a first chip disposed between the first end and the second end, wherein the first chip is used to: receive a first signal, the first signal comprising a CAN signal; convert the CAN signal according to a first preset protocol to obtain a converted CAN signal; and send the converted CAN signal.

[0007] In the above technical solution, by setting a chip for CAN signal conversion in the connector, it supports the transmission of CAN signals through the USB Type-C connector, thereby supporting the implementation of CAN-based on-board diagnostics (diagnostic communication over controller area network, DoCAN) functions through the USB Type-C interface. Implementing on-board diagnostics based on the Type-C interface contributes to the continuous evolution of on-board diagnostic technology, for example, it helps to improve the speed of on-board diagnostics. In combination with the first aspect, in certain implementations of the first aspect, the first signal also includes an ETH signal, and the first chip is further used to: convert the ETH signal according to a second preset protocol to obtain a converted ETH signal; and send the converted ETH signal.

[0008] In some possible implementations, the ETH signal includes an ETH T1 signal; or the converted ETH signal includes an ETH T1 signal.

[0009] In the above technical solution, by providing a chip for ETH signal conversion in the connector, it supports the transmission of ETH T1 signals through the USB Type-C connector, thereby supporting the implementation of Ethernet-based on-board diagnostics (DIOIP) functions through the USB Type-C interface. In some possible implementations, it can also improve diagnostic speed.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the first preset protocol includes at least one of the following: a CAN protocol, a controller area network with flexible data-rate (CAN-FD) protocol, and an extra-long controller area network (CAN eXtra long, CAN-XL) protocol.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the connector also includes a second chip, which is arranged between the first end and the second end, and the second chip is used to: receive an ETH signal; convert the ETH signal according to a second preset protocol to obtain a converted ETH signal; and send the converted ETH signal.

[0012] In combination with the first aspect, in some implementations of the first aspect, the first signal further includes an external serial bus signal, and the first chip is further used for transmitting the external serial bus signal.

[0013] In combination with the first aspect, in some implementations of the first aspect, the external serial bus signal includes at least one of the following: a peripheral component interconnect express (PCIe) signal, a compute express link (CXL) signal, and a universal bus (UB) signal.

[0014] In combination with the first aspect, in some implementations of the first aspect, the connector further includes an optoelectronic chip, which is disposed between the first end and the second end and close to a side of the second end for performing optoelectronic signal conversion.

[0015] In combination with the first aspect, in some implementations of the first aspect, the first chip includes a bridge chip.

[0016] In the above technical solution, more new functions can be realized through the bridge chip. For example, based on the bridge chip, the in-vehicle network can be directly connected through the USB TYPE-C interface to achieve access to the in-vehicle network.

[0017] In a second aspect, a connector is provided, comprising a first end and a second end, the first end being used to connect to a Universal Serial Bus Type-C USB Type-C female connector, and the second end being used to connect to a cable, the connector comprising a first chip disposed between the first end and the second end, wherein the first chip is used to: receive a first signal, the first signal comprising a CAN signal and / or an ETH signal; convert the CAN signal and / or the ETH signal according to a first preset protocol to obtain a converted signal; and send the converted signal.

[0018] In the above technical solution, by providing a chip for CAN signal and / or ETH signal conversion in the connector, it supports the transmission of CAN signals and / or ETH signals through the USB Type-C connector, thereby supporting the implementation of DoIP and / or DoCAN functions through the USB Type-C interface. Transmitting CAN signals and / or ETH signals through the USB Type-C connector can also reduce the size of the interface used for on-board diagnostics. Implementing on-board diagnostics based on the Type-C interface contributes to the continued evolution of on-board diagnostic technology, for example, helping to increase the speed of on-board diagnostics.

[0019] In conjunction with the second aspect, in certain implementations of the second aspect, the first chip includes a first sub-chip and a second sub-chip, wherein the first sub-chip is configured to receive a CAN signal, convert the CAN signal according to a first sub-preset protocol to obtain a converted first signal, and transmit the converted first signal; the second sub-chip is configured to receive an ETH signal, convert the ETH signal according to a second sub-preset protocol to obtain a converted second signal, and transmit the converted second signal. The first preset protocol includes a first sub-preset protocol and a second sub-preset protocol; and the converted signal includes a converted first signal and a converted second signal.

[0020] Exemplarily, the first sub-preset protocol includes at least one of the CAN protocol, the CAN-FD protocol, and the CAN-XL protocol; the second sub-preset protocol includes the vehicle-mounted ETH protocol.

[0021] In combination with the second aspect, in some implementations of the second aspect, the connector further includes an optoelectronic chip, which is disposed between the first chip and the second end and close to one side of the second end for performing optoelectronic signal conversion.

[0022] In combination with the second aspect, in some implementations of the second aspect, the first signal further includes an external serial bus signal, and the first chip is further used for transmitting the external serial bus signal.

[0023] In combination with the second aspect, in some implementations of the second aspect, the first chip further includes a third sub-chip, and the third chip is used for transmitting the external serial bus signal.

[0024] In combination with the second aspect, in certain implementations of the second aspect, the external serial bus signal includes at least one of the following: a PCIe signal, a CXL signal, and a UB signal.

[0025] In combination with the second aspect, in some implementations of the second aspect, the first chip includes a bridge chip.

[0026] In a third aspect, a diagnostic cable is provided, which includes two connectors and a cable, wherein the cable connects the two connectors, each of the two connectors includes a first end and a second end, the first end is used to connect to a USB Type-C female connector, and the second end is used to connect to the cable, each connector includes a first chip, which is arranged between the first end and the second end, wherein the first chip is used to: receive a first signal, the first signal including a controller area network (CAN) signal; convert the CAN signal according to a first preset protocol to obtain a converted CAN signal; and send the converted CAN signal.

[0027] The above technical solution provides a diagnostic cable with USB Type-C connectors on both ends. This allows the on-board diagnostic tester to be connected directly to the vehicle via the USB Type-C connector, eliminating the need for a converter and ETH cable, and simplifying wiring. Furthermore, the USB Type-C solution ecosystem is relatively complete and continuously evolving. The diagnostic cable supports on-board diagnostics via the USB Type-C connector, facilitating the use and development of on-board diagnostic systems.

[0028] In combination with the third aspect, in some implementations of the third aspect, the cable includes a first wire harness pair, and the first wire harness pair is used to transmit the CAN signal.

[0029] In combination with the third aspect, in certain implementations of the third aspect, the cable further includes a second wire harness pair, which is used to transmit an ETH signal; the first chip is also used to convert the ETH signal according to a second preset protocol to obtain a converted ETH signal, and send the converted ETH signal; or, each connector further includes a second chip, which is used to convert the ETH signal according to the second preset protocol to obtain the converted ETH signal, and send the converted ETH signal.

[0030] In combination with the third aspect, in certain implementations of the third aspect, the cable further includes a third wire harness pair, and the third wire harness pair is used to transmit custom data.

[0031] In combination with the third aspect, in certain implementations of the third aspect, the custom data includes data carried by an external serial bus signal.

[0032] In combination with the third aspect, in certain implementations of the third aspect, the external serial bus signal includes at least one of the following: a peripheral component interconnect express (PCIe) signal, a computing express link (CXL) signal, and a universal serial bus (UB) signal.

[0033] In combination with the third aspect, in certain implementations of the third aspect, the cable is a shielded cable or an optoelectronic hybrid cable.

[0034] In a fourth aspect, a diagnostic cable is provided, comprising two connectors as in any possible implementation of the first aspect or the second aspect and the cable, wherein the cable connects the two connectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic diagram of an on-board diagnostic system;

[0036] FIG2 is a schematic diagram of a diagnostic system provided in an embodiment of the present application;

[0037] FIG3 is a schematic block diagram of a connector provided in an embodiment of the present application;

[0038] FIG4 is a schematic diagram of a cable in a diagnostic cable provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is a kind of association relationship that describes associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In this application, "at least one" refers to one or more, and "more than one" refers to two or more. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0040] In the embodiments of this application, prefixes such as "first" and "second" are used only to distinguish different description objects and have no limiting effect on the position, order, priority, quantity, or content of the described objects. The use of prefixes such as ordinal numbers in the embodiments of this application to distinguish description objects does not constitute a limitation on the described objects. For a statement of the described objects, please refer to the description in the context of the claims or embodiments, and the use of such prefixes should not constitute an unnecessary limitation.

[0041] The connector and diagnostic cable provided in this application are suitable for on-board diagnostics of intelligent driving devices, which may include road vehicles, water vehicles, air vehicles, industrial equipment, agricultural equipment, or entertainment equipment. For example, the intelligent driving device can be a vehicle, which is a vehicle in a broad sense and can be a transportation tool (such as a commercial vehicle, passenger car, motorcycle, flying car, train, etc.), an industrial vehicle (such as a forklift, trailer, tractor, etc.), an engineering vehicle (such as an excavator, bulldozer, crane, etc.), agricultural equipment (such as a lawn mower, harvester, etc.), amusement equipment, a toy vehicle, etc. The embodiments of this application do not specifically limit the type of vehicle.

[0042] On-board diagnostics (OBD) refers to the process of determining a vehicle's technical condition and identifying the location and cause of a fault without disassembling the vehicle. These typically include testing and diagnosing the vehicle's powertrain, chassis, body, and accessories, exhaust pollutants, and noise, as well as ECU firmware flashing and upgrading.

[0043] Under the current technical background, the OBD tester is connected to the vehicle through the OBD-II interface and realizes vehicle diagnosis based on CAN and ETH networks.

[0044] As mentioned above, the current protocols for on-board diagnostics (OBD) use low transmission rates for CAN and ETH. This results in slow and time-consuming operations such as ECU firmware upgrades, leading to a poor user experience. Furthermore, the currently used OBD interface has limited room for speed improvement, necessitating a new interface format for high-speed communication scenarios like firmware upgrades.

[0045] In view of this, an embodiment of the present application provides a connector and a diagnostic cable that helps to improve the diagnostic speed of the on-board diagnostic system, for example, it can increase the speed of ECU firmware flashing and upgrading, or help the on-board diagnostic speed evolve to GE or even 10GE.

[0046] Figure 1 illustrates an on-board diagnostic system. As shown in Figure 1 , the system may include a diagnostic device and a vehicle. The vehicle includes an on-board module and an ECU, such as ECU1 and ECU2. The diagnostic device can be connected to an on-board diagnostic interface on the vehicle via a diagnostic cable, thereby sending diagnostic commands to diagnose the object to be diagnosed in the vehicle. In one implementation, if the on-board module is the object to be diagnosed, the diagnostic device and the object to be diagnosed are directly connected, and the on-board module is responsible for providing a physical connection between the diagnostic device and the object to be diagnosed and forwarding diagnostic messages. In another implementation, if the object to be diagnosed includes at least one of an ECU, a component that provides input signals to the ECU, or a component that receives output signals from the ECU, the diagnostic device establishes separate connections with the on-board module and the ECU, with the on-board module responsible for protocol conversion between the two connections. Depending on the bus protocol used by the ECU to connect to the outside world, the diagnostic protocols supported by the on-board diagnostic system may include at least one of the following: CAN bus protocol, ETH bus protocol, local interconnect network (LIN) bus protocol, and FlexRay bus protocol. CAN bus protocol and ETH bus protocol are the most widely used protocols in on-board diagnostic systems.

[0047] USB Type-C (hereafter referred to as Type-C) is a universal serial bus (USB) hardware interface for consumer electronics such as smartphones, tablets, digital cameras, and game consoles. It supports USB data transmission and power delivery, and is flexibly expandable to support new protocols and scenarios. Type-C features a smaller footprint and identical front and back connectors, allowing for reversible insertion. It also supports ultra-fast data transfer (e.g., 40,000 Mbps) and high-power charging (e.g., 100 watts). The Type-C solution ecosystem is comprehensive and continuously evolving. With the advancement of smart vehicle technology, an increasing number of vehicles are integrating Type-C interfaces for purposes such as mobile phone charging and data transmission. Therefore, using Type-C for data transmission in vehicle diagnostic systems not only improves diagnostic speed but also facilitates their use and development. The Type-C interface supports speeds of 500 Kbps, 100 Mbps, and GE, facilitating future evolution to 10GE and even higher speeds.

[0048] FIG2 shows a schematic diagram of an on-board diagnostic system provided by an embodiment of the present application. As shown in FIG1 , the system includes a vehicle 100 and a diagnostic device 300. The vehicle 100 and the diagnostic device 300 are connected via a diagnostic cable 200, and diagnostic commands and diagnostic data are transmitted via the diagnostic cable 200. As shown in FIG2 , the diagnostic cable 200 includes two Type-C connectors 201, which are connected by a cable 202.

[0049] In terms of network protocols, the Type-C connector currently available does not support the in-vehicle CAN protocol, making it unsuitable for direct use in vehicle diagnostics. Connecting an on-board diagnostic test instrument using the current protocol via the vehicle's Type-C connector requires two converters and an ETH cable, requiring numerous peripherals and complex wiring.

[0050] Figure 3 shows a connector provided by an embodiment of the present application. As shown in Figure 3, the connector is designed to support the vehicle-mounted CAN protocol, thereby enabling the diagnostic cable 200 to be used in a vehicle-mounted diagnostic system.

[0051] As shown in (a) of Figure 3, the Type-C connector (hereinafter referred to as the connector) includes a first end 301 and a second end 302, wherein the first end 301 is used to connect to the Type-C female head, and the second end 302 is used to connect to the cable 202. A first chip 303 is arranged between the first end 301 and the second end 302. The first chip 303 is used to receive a first signal, which includes a CAN signal, convert the CAN signal according to a first preset protocol to obtain a converted CAN signal, and send the converted CAN signal.

[0052] Among them, the first preset protocol may include CAN protocol, CAN-FD protocol, CAN-XL protocol and other protocols.

[0053] Exemplarily, the CAN signal is a CAN protocol signal transmitted from the cable 202 to the Type-C female connector, and the converted CAN signal is a signal in the Type-C protocol format supported by the vehicle 100 or the diagnostic device 300 .

[0054] In some possible implementations, cable 202 is a hybrid optical / electrical cable, and an optoelectronic chip 304 is further disposed between first end 301 and second end 302 for optical / electrical signal conversion. As shown in FIG3(b), optoelectronic chip 304 is disposed near the second end 302 of the converter, so that the signal transmitted from cable 202 to the Type-C female connector is converted by optoelectronic chip 304 and first chip 303 to a signal in a protocol format supported by vehicle 100 or diagnostic device 300.

[0055] In some possible implementations, as shown in (a) of FIG3 , the first chip 303 is configured to convert the ETH signal according to the second preset protocol to obtain a converted ETH signal, and send the converted ETH signal.

[0056] In some possible implementations, the first signal further includes an ETH signal, and the first chip 303 is further configured to: convert the ETH signal according to a second preset protocol to obtain a converted ETH signal, and send the converted ETH signal.

[0057] Among them, the second preset protocol may include vehicle-mounted ETH protocols such as ETH 100base-T1 protocol, ETH 1000base-T1 protocol, 2.5G / 5G / 10G base-T1 protocol, and 25G / 50G base-T1 protocol.

[0058] Exemplarily, the ETH signal is an ETH protocol signal transmitted from the cable 202 to the Type-C female connector, and the converted ETH signal is a signal in the Type-C protocol format supported by the vehicle 100 or the diagnostic device 300 .

[0059] Exemplarily, the first chip 303 includes a bridge chip, which is used to support the transmission of CAN signals and / or ETH signals.

[0060] In some possible implementations, as shown in (c) in Figure 3, the connector also includes a second chip 305, which is arranged between the first end 301 and the second end 302. The second chip is used to receive the ETH signal, convert the ETH signal according to the second preset protocol to obtain a converted ETH signal, and send the converted ETH signal.

[0061] In some possible implementations, as shown in (d) in Figure 3, the connector includes a first chip 303, a second chip 305, and an optoelectronic chip 304, and the optoelectronic chip 304 is arranged on a side close to the second end 302 of the converter, and the first chip 303 and the second chip 305 are arranged on a side close to the first end 301 of the converter.

[0062] In some possible implementations, as shown in (e) in Figure 3, the first chip includes a bridge chip, and an ETH transceiver and / or a CAN transceiver, wherein the ETH transceiver is used to receive ETH signals and / or send converted ETH signals; the CAN transceiver is used to receive CAN signals and / or send converted CAN signals.

[0063] In some possible implementations, the first signal further includes an external serial bus signal, and the first chip is further used for transmitting the external serial bus signal.

[0064] The external serial bus signal includes at least one of the following: a PCIe signal, a CXL signal, and a UB signal.

[0065] For example, the first chip 303 may include a bridge chip, and the second chip 305 may also include a bridge chip. For example, as shown in FIG3(f), the first chip 303 may include a bridge chip 1 and an ETH transceiver, and the second chip may include a bridge chip 2 and a CAN transceiver.

[0066] In some possible implementations, the first chip 303 includes a bridge chip and an ETH transceiver and / or a CAN transceiver. The bridge chip is disposed near the first end 301 of the converter; the optoelectronic chip is disposed near the second end 302 of the converter; and the ETH transceiver and / or the CAN transceiver are disposed between the bridge chip and the optoelectronic chip, as shown in FIG3 (g).

[0067] In some possible implementations, the connector includes a first chip 303, a second chip 305, and an optoelectronic chip 304. First chip 303 includes bridge chip 2 and a CAN transceiver; second chip 305 includes bridge chip 1 and an ETH transceiver. Bridge chips 1 and 2 are disposed near the first end 301 of the converter; the optoelectronic chip is disposed near the second end 302 of the converter, with the ETH transceiver and the CAN transceiver disposed between the bridge chip and the optoelectronic chip, as shown in (h) of FIG3 .

[0068] It should be noted that the connector 201 may further include more chips, or the first chip may further support more functions to support the transmission of other types of signals.

[0069] In some possible implementations, the cable connecting the two connectors in the diagnostic cable is designed so that the diagnostic cable can be used in an on-board diagnostic system.

[0070] In one example, a cable includes a first wiring harness pair for transmitting CAN signals. The first wiring harness pair comprises two wiring harnesses, one for transmitting low-level CAN signals and the other for transmitting high-level CAN signals. The low-level CAN signals and the high-level CAN signals constitute the CAN signal. As shown in FIG4(a), wiring harness pair 1 is an example of the first wiring harness pair.

[0071] In another example, the cable may further include a second wiring harness pair for transmitting an ETH signal. The second wiring harness pair includes two wiring harnesses, one of which is used to transmit a low-level ETH signal and the other is used to transmit a high-level ETH signal. The low-level ETH signal and the high-level ETH signal constitute the above-mentioned ETH signal. As shown in (b) of Figure 4, wiring harness pair 1 is an example of the first wiring harness pair, and wiring harness pair 2 is an example of the second wiring harness pair.

[0072] In another example, the cable may further include a third wire harness pair for transmitting custom data. As shown in FIG4( c ), wire harness pair 1 is an example of the first wire harness pair, wire harness pair 2 is an example of the second wire harness pair, and wire harness pair 3 is an example of the third wire harness pair.

[0073] The custom data includes the data carried by the external serial bus signal.

[0074] In some possible implementations, the cable may be a shielded cable, or may be an optical / electrical hybrid cable.

[0075] It should be noted that the cable 202 may also include other wire harness pairs to support the transmission of other types of signals.

[0076] The diagnostic cable provided in the embodiments of the present application supports the transmission of ETH signals and / or CAN signals via a Type-C connector by providing a chip for CAN signal and / or ETH signal conversion in the connector, thereby supporting the implementation of on-board diagnostic functions via the Type-C interface, which helps to improve the diagnostic speed of the on-board diagnostic system. In addition, both ends of the diagnostic cable have Type-C interfaces, which supports the on-board diagnostic tester to be connected directly to the vehicle via the Type-C interface, avoiding the need for a converter and ETH cable, and requiring no additional peripherals, making wiring simple.

[0077] It should be understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of each process should be determined by its function and inherent logic.

[0078] It should be understood that in the embodiments of the present application, the numbers "first", "second"... are only for distinguishing different objects, such as to distinguish different axes of symmetry, and do not constitute a limitation on the scope of the embodiments of the present application, and the embodiments of the present application are not limited to this.

[0079] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A connector, characterized in that: The connector comprises a first end and a second end, wherein the first end is used to connect to a universal serial bus USB Type-C female connector, and the second end is used to connect to a cable, and the connector comprises a first chip disposed between the first end and the second end, wherein the first chip is used to: Receiving a first signal, wherein the first signal comprises a controller area network (CAN) signal; Convert the CAN signal according to a first preset protocol to obtain a converted CAN signal; The converted CAN signal is transmitted.

2. The connector according to claim 1, wherein: The first signal also includes an Ethernet ETH signal, and the first chip is further used for: Convert the ETH signal according to a second preset protocol to obtain a converted ETH signal; The converted ETH signal is transmitted.

3. The connector according to claim 1 or 2, characterized in that: The first preset protocol includes at least one of the following: CAN protocol, Controller Area Network (CAN-FD) protocol with flexible data baud rate, and Controller Area Network (CAN-XL) protocol with extra long baud rate.

4. The connector according to claim 1, wherein: The connector further includes a second chip, which is disposed between the first end and the second end, and the second chip is used for: Receive ETH signals; Convert the ETH signal according to a second preset protocol to obtain a converted ETH signal; The converted ETH signal is transmitted.

5. The connector according to any one of claims 1 to 4, characterized in that: The first signal also includes an external serial bus signal, and the first chip is also used for transmitting the external serial bus signal.

6. The connector according to claim 5, characterized in that The external serial bus signal includes at least one of the following: a peripheral component interconnect express PCIe signal, a computing express link CXL signal, and a universal bus UB signal.

7. The connector according to any one of claims 1 to 6, characterized in that: The connector further includes an optoelectronic chip, which is disposed between the first end and the second end and close to one side of the second end, and is used for performing optoelectronic signal conversion.

8. The connector according to any one of claims 1 to 7, characterized in that: The first chip includes a bridge chip.

9. A diagnostic cable, characterized in that: The invention comprises two connectors and a cable, wherein the cable connects the two connectors, each of the two connectors comprises a first end and a second end, the first end is used to connect to a USB Type-C female connector, and the second end is used to connect to the cable, and each connector comprises a first chip disposed between the first end and the second end, wherein the first chip is used to: Receiving a first signal, wherein the first signal comprises a controller area network (CAN) signal; Convert the CAN signal according to a first preset protocol to obtain a converted CAN signal; The converted CAN signal is transmitted.

10. The diagnostic cable according to claim 9, characterized in that The cable includes a first wire harness pair, and the first wire harness pair is used to transmit the CAN signal.

11. The diagnostic cable according to claim 9 or 10, characterized in that: The cable includes a second wire harness pair, and the second wire harness pair is used to transmit Ethernet ETH signals; The first chip is also used to convert the ETH signal according to a second preset protocol to obtain a converted ETH signal, and send the converted ETH signal; or, each connector also includes a second chip, and the second chip is used to convert the ETH signal according to the second preset protocol to obtain the converted ETH signal, and send the converted ETH signal.

12. The diagnostic cable according to any one of claims 9 to 11, characterized in that: The cable includes a third wire pair, and the third wire pair is used to transmit custom data.

13. The diagnostic cable according to claim 12, characterized in that The custom data includes data carried by an external serial bus signal.

14. The diagnostic cable according to claim 13, characterized in that The external serial bus signal includes at least one of the following: a peripheral component interconnect express (PCIe) signal, a computing express link (CXL) signal, and a universal bus (UB) signal.

15. The diagnostic cable according to any one of claims 9 to 14, characterized in that: The cable is a shielded cable or an optoelectronic hybrid cable.

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