Diagnostic wire harness, diagnostic wire harness assembly and vehicle

Abstract

The utility model discloses and provides a diagnosis wire harness, a diagnosis wire harness assembly and a vehicle, and the diagnosis wire harness comprises a wire harness body which is detachably attached to a protection device of a whole vehicle wire harness; the wire harness connectors are located at the two ends of the wire harness body and used for being connected with other structures. The diagnosis wire harness is detachably attached to the protection device of the whole vehicle wire harness, so that whether the diagnosis wire harness is assembled on the vehicle or not can be freely determined according to the order requirement, the diagnosis wire harness does not occupy the internal connection hole site of the whole vehicle wire harness, and the residual hole site of the internal connection is enough to meet the requirement of the vehicle for increasing the electrical function in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and more specifically, to a diagnostic wire harness, a diagnostic wire harness assembly and a vehicle. Background Art

[0002] When diagnosing a vehicle during the vehicle test phase, the diagnostic equipment needs to be connected to the OBD interface to carry out corresponding vehicle tests. Usually, a vehicle requires two or even three OBD interfaces to meet the calibration diagnosis requirements. The internal diagnostic circuits of these OBD interfaces are usually integrated with the vehicle harness, so they will occupy the reserved internal connection holes of the vehicle. When additional electrical functions are added to the vehicle later, there may be a risk of insufficient internal connection vacancies, thus affecting the vehicle's upgrade and mass production. Summary of the Utility Model

[0003] To achieve the above object, the utility model provides the following technical solutions:

[0004] The first aspect of the utility model provides a diagnostic wire harness, including:

[0005] A wire harness body (10), which is detachably attached to the protective device of the vehicle harness (40);

[0006] Wire harness connectors (20), located at both ends of the wire harness body (10), for connecting other structures.

[0007] In a possible implementation, the wire harness connector (20) includes a first type of interface, and the first type of interface is an interface for connecting a controller.

[0008] In a possible implementation, the wire harness connector (20) includes a second type of interface. When the second type of interface is a male plug, it is used to connect to the female plug of the second type of interface; when the second type of interface is a female plug, it is used to connect to the male plug of the second type of interface.

[0009] In a possible implementation, the wire harness connector (20) includes a third type of interface, and the third type of interface is an interface for connecting an external diagnostic device.

[0010] In a possible implementation, the wire harness body (10) further includes a plurality of elastic buckle structures (30), and the plurality of elastic buckle structures (30) are evenly distributed on the wire harness body (10) and can be stuck on the vehicle harness (40) to realize the fixed connection between the wire harness body (10) and the vehicle harness (40).

[0011] The second aspect of the utility model provides a diagnostic wire harness assembly, including any one of the above diagnostic wire harnesses, including:

[0012] The first diagnostic wire harness (511) has its first end connected to the engine compartment controller (512);

[0013] The second diagnostic wire harness (521) has its first end connected to the cockpit controller (522);

[0014] The third diagnostic wire harness (531) has its first end connected to the instrument controller (532) and its second end connected to the OBD diagnostic interface (550);

[0015] The auxiliary diagnostic wire harness (541) is respectively connected to the second ends of the first diagnostic wire harness (511) and the second diagnostic wire harness (522), so that the communication lines of the first diagnostic wire harness 511 and the second diagnostic wire harness (522) extend to the OBD diagnostic interface (550).

[0016] In a possible implementation, it further includes:

[0017] A power line, connected to the OBD diagnostic interface to supply power to the OBD diagnostic interface.

[0018] In a possible implementation, the power line is integrated in the diagnostic wire harness assembly.

[0019] In a possible implementation, different diagnostic wire harnesses, as well as between the diagnostic wire harness and the controller, are connected through wire harness connectors.

[0020] The third aspect of the present utility model provides a vehicle, including any one of the above-mentioned diagnostic wire harnesses, or including any one of the above-mentioned diagnostic wire harness assemblies.

[0021] Through the above technical solutions, compared with the prior art, the present utility model discloses a diagnostic wire harness, a diagnostic wire harness assembly and a vehicle. The diagnostic wire harness includes: a wire harness body, and the wire harness body is detachably attached to the protection device of the vehicle wire harness; wire harness connectors, located at both ends of the wire harness body, for connecting other structures. The diagnostic wire harness is detachably attached to the protection device of the vehicle wire harness, so that it can be freely determined whether the vehicle is equipped with a diagnostic wire harness according to the order requirements. The diagnostic wire harness does not occupy the connection holes inside the vehicle wire harness, making the remaining connection holes sufficient to meet the needs of the vehicle for adding electrical functions in the later stage. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0023] Figure 1 Structural schematic diagram of the diagnostic wiring harness disclosed in the embodiments of the present application;

[0024] Figure 2 Cross-sectional schematic diagram of the male plug and female plug disclosed in the embodiments of the present application;

[0025] Figure 3 Structural schematic diagram of another diagnostic wiring harness disclosed in the embodiments of the present application;

[0026] Figure 4 Schematic diagram of the state where the diagnostic wiring harness disclosed in the embodiments of the present application is attached to the vehicle wiring harness;

[0027] Figure 5 Connection structural schematic diagram of a diagnostic wiring harness assembly disclosed in the embodiments of the present application; Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Figure 1 Structural schematic diagram of the diagnostic wiring harness disclosed in the embodiments of the present application. Combining Figure 1 As shown, the diagnostic wiring harness disclosed in the embodiments of the present invention may include:

[0030] The wiring harness body 10, and the wiring harness body 10 is detachably attached to the protection device of the vehicle wiring harness 40;

[0031] The wiring harness connector 20, located at both ends of the wiring harness body 10, for connecting other structures.

[0032] Among them, the wiring harness body 10 may include multiple wires and a protection device surrounding the multiple wires. Figure 1Only the appearance of the diagnostic wiring harness is shown, and the multiple wires contained therein are not shown. Different wires are used to transmit different diagnostic signals. The protective device can be a corrugated pipe or a PVC pipe with a fixed shape, etc., or it can be a protective layer with a certain elasticity, such as sponge, tape, etc. The present application does not have a fixed limitation on this. Similarly, the protective device of the vehicle wiring harness can also be a corrugated pipe or a PVC pipe with a fixed shape, etc., or it can be a protective layer with a certain elasticity, such as sponge, tape, etc.

[0033] The diagnostic wiring harness described in the embodiment of the present utility model exists independently of the traditional vehicle wiring harness, and it can be optionally assembled based on the scenario requirements. Those skilled in the art know that during the experimental test stage of the vehicle, a large number of diagnostic tests will be carried out, which will inevitably lead to a large number of diagnostic wiring harnesses being arranged in the vehicle. However, in the traditional solution, these diagnostic wiring harnesses are integrated with other communication lines that ensure the normal implementation of various vehicle functions. Therefore, it will occupy the reserved hole positions for internal connection in the vehicle wiring harness, and then there will be very few remaining hole positions for internal connection. If the vehicle is upgraded later, adding new electrical functions will face the problem of insufficient internal connection hole positions.

[0034] Considering that many diagnostic lines for diagnostic tests carried out during the experimental stage of the vehicle will no longer be used after the vehicle is mass-produced, therefore, in this application, the diagnostic lines for diagnostic tests during the experimental stage of the vehicle are separated separately, or in other words, the diagnostic lines that will be used during the experimental stage of the vehicle but will not be used after mass production are separated from the vehicle wiring harness and designed as an independent diagnostic wiring harness in a configurable manner. In this way, during the experimental stage of the vehicle, the said diagnostic wiring harness can be assembled to meet the needs of a large number of diagnostic tests during the test stage, and when the vehicle is mass-produced, the vehicle wiring harness will no longer be assembled with the said diagnostic wiring harness to meet different order requirements.

[0035] Figure 1 The wiring harness connector described is only a schematic example, and its cross-sectional shape in actual application can be rectangular, circular, oval, etc., without a fixed limitation. The wiring harness connector can be used to connect various controllers and other wiring harnesses in the vehicle, such as engine compartment controllers, cockpit controllers, other diagnostic wiring harnesses, etc. When connecting different structural components, the types of wiring harness connectors are also different.

[0036] The wiring harness connector 20 can include a first type of interface, and the first type of interface is an interface for connecting a controller. The first type of interface is a port that can be connected to the pins led out by the controller.

[0037] The wire harness connector 20 may also include a second type of interface. When the second type of interface is a male plug, it is used to connect to the female plug of the second type of interface; when the second type of interface is a female plug, it is used to connect to the male plug of the second type of interface. That is to say, the second type of interface includes two types of sub-interfaces, namely male plugs and female plugs. When the wire harness connector of the current diagnostic wire harness is a male plug, it can be connected to the female plug of other wire harnesses; when the wire harness connector of the current diagnostic wire harness is a female plug, it can be connected to the male plug of other wire harnesses. Figure 2 FIG. Figure 2 is a cross-sectional schematic diagram of a male plug and a female plug disclosed in an embodiment of the present application. The left side is a cross-sectional view of the female plug, including a plurality of holes; the right side is a male plug, which includes a plurality of protruding metal connection heads (structures shown as black dots in the figure) corresponding to the positions of the holes of the female plug. When the male plug is connected to the female plug, the metal connection heads on the male plug can be inserted into the holes of the female plug one by one to achieve the connection between the male plug and the female plug. Of course, Figure 2 FIG. Figure 2 is only a schematic illustration of a male plug and a female plug. In other implementations, the cross-sections of the male plug and the female plug can also be other shapes, and the number of holes and the number of metal connection heads included therein are not fixedly limited.

[0038] The wire harness connector 20 also includes a third type of interface, and the third type of interface is an interface for connecting an external diagnostic device, such as an OBD (On-Board Diagnostics) diagnostic interface.

[0039] The wire harness connector described in the embodiment of the present application includes different types of connectors to meet the connection requirements of different structural scenarios.

[0040] Figure 3 FIG. Figure 3 is a schematic structural diagram of another diagnostic wire harness disclosed in an embodiment of the present application. As shown in combination with Figure 3 FIG. Figure 3 , the diagnostic wire harness body 10 may also include a plurality of elastic buckle structures 30 ( Figure 3 only one elastic buckle structure is shown in FIG. Figure 3 ). The plurality of elastic buckle structures 30 are evenly distributed on the wire harness body 10 and can be clamped on the vehicle wire harness 40 to achieve a fixed connection between the wire harness body 10 and the vehicle wire harness 40.

[0041] Figure 4 FIG. Figure 4 is a schematic diagram of the state where the diagnostic wire harness body 10 disclosed in the embodiment of the present application is attached to the vehicle wire harness 40. As shown in combination with Figure 4 FIG. Figure 4 , the wire harness body 10 is fixed to the vehicle wire harness 40 through the elastic buckle structure 30.

[0042] The elastic bayonet structure 30 can be conveniently fixed on the vehicle harness 40, enabling the diagnostic harness to be attached to the vehicle harness and extend along the extension direction of the vehicle harness. The design of the elastic bayonet structure makes the assembly of the diagnostic harness simple and convenient, and it is better applicable to different assembly requirement scenarios.

[0043] Figure 5 The figure is a schematic diagram of the connection structure of a diagnostic harness assembly disclosed in an embodiment of the present application. In combination with Figure 5 as shown, the diagnostic harness assembly may include:

[0044] The first diagnostic harness 511, with the first end connected to the engine compartment controller 512;

[0045] The second diagnostic harness 521, with the first end connected to the cockpit controller 522;

[0046] The third diagnostic harness 531, with the first end connected to the instrument controller 532 and the second end connected to the OBD diagnostic interface 550;

[0047] The auxiliary diagnostic harness 541 is respectively connected to the second end of the first diagnostic harness 511 and the second end of the second diagnostic harness 522, so that the communication lines of the first diagnostic harness 511 and the second diagnostic harness 522 extend to the OBD diagnostic interface 550.

[0048] That is to say, the first diagnostic harness 511 is the engine compartment diagnostic harness connected to the engine compartment controller 512, the second diagnostic harness 521 is the cockpit diagnostic harness connected to the cockpit controller 522, the third diagnostic harness 531 is the instrument diagnostic harness connected to the instrument controller 532, and the auxiliary diagnostic harness 541 is the extension harness connecting the first diagnostic harness 511 and the second diagnostic harness 521, so that both the first diagnostic harness 511 and the second diagnostic harness 521 can extend to the unified OBD diagnostic interface 550, that is, the OBD diagnostic interface connected by the third diagnostic harness 531.

[0049] The diagnostic harness assembly includes a plurality of different diagnostic harnesses. Between different diagnostic harnesses and between the diagnostic harness and the controller, they can be connected through any wire harness connector described in the foregoing embodiments.

[0050] Compared with the implementation of having two or three OBD diagnostic interfaces at different positions in the traditional solution, in the diagnostic harness assembly of the embodiment of the present utility model, the diagnostic lines of different controllers are all routed to the OBD diagnostic interface at the same position. Of course, the OBD interface can be set to two or three based on different requirements or functions, but these OBD interfaces are all located at the same position, which is convenient for unified management and connection of diagnostic devices.

[0051] In practical applications, the engine compartment controller can be connected (corresponding to the second type of interface) through the CAN (Controller Area Network) signal line inside the first diagnostic harness (engine compartment diagnostic harness) and then transferred to the third diagnostic harness (instrument diagnostic harness). The cockpit controller can be connected (corresponding to the second type of interface) through the CAN signal line inside the second diagnostic harness (cockpit diagnostic harness) and then transferred to the third diagnostic harness (instrument diagnostic harness). The CAN signal line is used to transmit diagnostic signals. Finally, the CAN lines of the controllers on the engine compartment, cockpit, and instrument are all connected to the OBD diagnostic interface to achieve the full-vehicle CAN line diagnostic function.

[0052] In this embodiment, the diagnostic harness in the diagnostic harness assembly can be selectively assembled on the vehicle harness based on the usage scenario. When assembled, it can meet the layout problem of a large number of diagnostic harnesses during the experimental stage. During mass production, it is possible to choose not to assemble the diagnostic harness and only retain the vehicle harness. In this way, the diagnostic lines required during the vehicle experimental stage will not occupy the internal connection holes in the vehicle harness, leaving enough internal connection holes reserved for adding new electrical functions to the vehicle in the future.

[0053] In other implementations, the diagnostic harness assembly further includes a power line, and the power line is connected to the OBD diagnostic interface to supply power to the OBD diagnostic interface. In practical applications, the power line can be integrated into the diagnostic harness assembly.

[0054] Since the OBD diagnostic interface has a power supply requirement, for example, when a passive diagnostic device is connected to the OBD diagnostic interface, the OBD interface can supply power to the diagnostic device to ensure the power required for the operation of the diagnostic device.

[0055] In summary, the diagnostic harness assembly provided by the solution of this application: is convenient for layout, can save the reserved holes for internal connection in the main harness; has application flexibility and can meet whether the vehicle needs to assemble the diagnostic harness according to the order requirements; can transfer all the controllers that need to be diagnosed in the whole vehicle and connect them to the OBD diagnostic interface at the same position.

[0056] Further, this application also discloses a vehicle, which includes any one of the diagnostic harnesses described in the above embodiments, or includes any one of the diagnostic harness assemblies described in the above embodiments.

[0057] It should be understood that the above specific embodiments of this application are only for exemplifying and explaining or interpreting the principle of this application, and do not constitute a limitation to this application. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of this application should be included within the protection scope of this application. In addition, the appended claims of this application are intended to cover all changes and modification examples that fall within the scope and boundary of the appended claims, or the equivalent form of such scope boundary.

[0058] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A diagnostic harness, characterized in that: include: A wiring harness body (10), the wiring harness body (10) being detachably attached to a protective device of a whole vehicle wiring harness (40) and extending along an extension direction of the whole vehicle wiring harness; The wiring harness connectors (20) are located at both ends of the wiring harness body (10) and are used to connect other structures.

2. The diagnostic harness according to claim 1, characterized in that: The wiring harness connector (20) comprises a first type interface, which is an interface for connecting to a controller.

3. The diagnostic harness according to claim 1, characterized in that: The wiring harness connector (20) comprises a second type interface, which is used to connect with a female plug-in of the second type interface when the second type interface is a male plug-in; and which is used to connect with a male plug-in of the second type interface when the second type interface is a female plug-in.

4. The diagnostic harness according to claim 1, characterized in that: The wiring harness connector (20) comprises a third type interface, which is an interface for connecting an external diagnostic device.

5. The diagnostic harness according to claim 1, characterized in that: The wiring harness body (10) further comprises a plurality of elastic buckle structures (30), which are evenly distributed on the wiring harness body (10) and can be clamped on the whole vehicle wiring harness (40) to achieve a fixed connection between the wiring harness body (10) and the whole vehicle wiring harness (40).

6. A diagnostic harness assembly, characterized in that: The diagnostic wiring harness according to any one of claims 1 to 5 comprises: A first diagnostic harness (511), a first end of which is connected to a cabin controller (512); A second diagnostic harness (521), a first end of which is connected to a cockpit controller (522); A third diagnostic harness (531), a first end of which is connected to the instrument controller (532) and a second end of which is connected to the OBD diagnostic interface (550); The auxiliary diagnostic harness (541) is connected to the second end of the first diagnostic harness (511) and the second end of the second diagnostic harness (521), respectively, so that the communication lines of the first diagnostic harness (511) and the second diagnostic harness (521) are extended to the OBD diagnostic interface (550).

7. The diagnostic wiring harness assembly according to claim 6, characterized in that: Also includes: A power line is connected to the OBD diagnostic interface to supply power to the OBD diagnostic interface.

8. The diagnostic wiring harness assembly according to claim 7, characterized in that: The power line is integrated into the diagnostic wiring harness assembly.

9. The diagnostic wiring harness assembly according to claim 6, characterized in that: Different diagnostic harnesses, as well as the diagnostic harness and the controller are connected through harness connectors.

10. A vehicle, characterized in that: Includes the diagnostic wiring harness described in any one of claims 1-5, or includes the diagnostic wiring harness assembly described in any one of claims 6-9.

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