Wire harness assembly

Abstract

The utility model discloses a wire harness assembly, which comprises a first plug and a second plug, the first plug comprises a shell, a plugging port, a first plugging end and a first connecting end are formed on the shell, a plurality of data connecting terminals are arranged in the first plugging end, and the data connecting terminals are matched with functional terminals of a vehicle-mounted OBD (on-board diagnostics) interface on a truck; the second plug comprises a second plugging end and a second connecting end, a plurality of function pins are arranged in the second plugging end, the second plug is used for being connected with the vehicle diagnostic instrument, and the function pins and the data connecting terminals are arranged in a one-to-one correspondence mode; one end of the first wire harness is connected with the first connecting end, and the other end of the first wire harness is connected with the second connecting end; and one end of the second wire harness is matched and connected with the plugging port, and the second end of the second wire harness is provided with a third plug. Through the wiring harness assembly, the vehicle speed displayed on the new man-machine interaction interface of the truck can be calibrated.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a wiring harness assembly. Background Technology

[0002] Before a truck leaves the factory, its speedometer display needs to be calibrated to ensure it conforms to industry standards. These standards require the displayed speed to be greater than the actual speed. Traditional speedometers can be calibrated by writing data through a program. However, the speed calculation module of the new human-machine interface instrument is integrated into the dashcam, which lacks a CAN bus connection and cannot be programmed via CAN bus. Therefore, a separate communication harness needs to be designed to meet the speed calibration requirements. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this utility model is to provide a wiring harness assembly that connects a truck's driving recorder containing a speed calculation module, the truck's on-board OBD interface, and a vehicle diagnostic tool. This allows the vehicle diagnostic tool to write the truck's speed adjustment coefficient into the driving recorder, enabling speed calibration of the vehicle speed displayed on the truck's new human-machine interface, and improving the first-pass yield rate of the program to meet the factory's program first-pass yield requirements.

[0004] To address the aforementioned problems, a first aspect of this utility model provides a wiring harness assembly, comprising: a first plug, the first plug including a housing, the housing having a connector, a first plug-in end, and a first connection end formed thereon, the first plug-in end having a plurality of data connection terminals that match the functional terminals of a truck's onboard OBD interface; a second plug, the second plug including a second plug-in end and a second connection end, the second plug-in end having a plurality of functional pins, the second plug being used to connect to a vehicle diagnostic tool, wherein the functional pins correspond one-to-one with the data connection terminals; a first wiring harness, one end of the first wiring harness being connected to the first connection end, and the other end of the first wiring harness being connected to the second connection end; a second wiring harness, one end of the second wiring harness being matched and connected to the connector, and the second end of the second wiring harness having a third plug, the third plug being used to connect to a truck's dashcam when writing the speed adjustment coefficient.

[0005] According to the wiring harness assembly of this utility model embodiment, when writing the speed adjustment coefficient, the vehicle diagnostic tool can connect to the truck's driving recorder and the truck's on-board OBD interface through the wiring harness assembly. The vehicle diagnostic tool can then obtain the truck's status parameters through the on-board OBD interface. After confirming that the status parameters meet the data interaction conditions, the vehicle diagnostic tool writes the truck's speed adjustment coefficient into the driving recorder. This achieves two goals: firstly, it calibrates the vehicle speed displayed on the truck's new human-machine interface, ensuring the displayed speed conforms to industry standards; secondly, it improves the first-pass yield of the factory program, meeting the requirements for first-pass yield of factory program writing.

[0006] In some embodiments, one end of the second wire harness is detachably connected to the plug interface.

[0007] In some embodiments, the housing is further provided with a connection switch, which is used to lock the first plug when it is connected to the vehicle OBD interface.

[0008] In some embodiments, the plurality of data connection terminals include at least a data connection terminal for transmitting the speed adjustment coefficient, and the plurality of functional pins include at least a data transmission pin for transmitting the speed adjustment coefficient; the third plug includes a data transmission interface, a power supply interface, a grounding interface, and a spare interface for transmitting the speed adjustment coefficient.

[0009] In some embodiments, the outer housing of the third plug includes a rectangular portion and a semi-circular portion, wherein the rectangular portion is connected to the semi-circular portion.

[0010] In some embodiments, the vehicle OBD interface includes sixteen functional interfaces arranged in a two-row, eight-column matrix; the first plug-in terminal is provided with sixteen data connection terminals arranged in a two-row, eight-column matrix.

[0011] In some embodiments, the second plug includes an annular housing, a plurality of functional pins located on the inner circumferential side of the annular housing, and the plurality of functional pins extending axially along the annular housing.

[0012] In some embodiments, the annular housing is provided with a snap-fit ​​portion for engaging the second plug with the socket of the vehicle diagnostic instrument.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of a wire harness assembly according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram showing the distribution of data connection terminals according to an embodiment of the present invention;

[0017] Figure 3 This is a front view of a second plug according to an embodiment of the present invention;

[0018] Figure 4 This is a front view of the third plug according to an embodiment of the present invention.

[0019] Figure label:

[0020] Wire harness assembly 10;

[0021] First plug 1; Second plug 2; First wiring harness 3; Second wiring harness 4;

[0022] Housing 11; Plug interface 12; First plug end 13; First connection end 14; Second plug end 21; Second connection end 22; Connection switch 15. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0024] To address the aforementioned issues, the first aspect of this utility model provides a wiring harness assembly that connects a truck's driving recorder containing a speed calculation module, the truck's onboard OBD interface, and a vehicle diagnostic tool. This allows the vehicle diagnostic tool to write the truck's speed adjustment coefficient into the driving recorder, enabling speed calibration of the truck's speed displayed on the new human-machine interface and improving the first-pass yield rate of the program to meet the factory's program first-pass yield requirements.

[0025] The following is for reference. Figure 1 The wire harness assembly described in the embodiments of this utility model, such as Figure 1 As shown, the wiring harness assembly 10 includes a first plug 1, a second plug 2, a first wiring harness 3, and a second wiring harness 4.

[0026] The first plug 1 includes a housing 11, on which a plug interface 12, a first plug end 13 and a first connection end 14 are formed. The first plug end 13 is provided with a plurality of data connection terminals and the data connection terminals are matched with the functional terminals of the on-board OBD interface of the truck.

[0027] The second plug 2 includes a second plug end 21 and a second connection end 22. The second plug end 21 is provided with multiple functional pins. The second plug 2 is used to connect to a vehicle diagnostic tool. The functional pins are configured to correspond one-to-one with the data connection terminals.

[0028] One end of the first wiring harness 3 is connected to the first connecting terminal 14, and the other end of the first wiring harness 3 is connected to the second connecting terminal 22. One end of the second wiring harness 4 is matched and connected to the plug interface 12, and the second end of the second wiring harness 4 is provided with a third plug 5, which is used to connect the truck's driving recorder when writing the speed adjustment coefficient.

[0029] Specifically, multiple data connection terminals provided on the first connector 13 are connected to the corresponding functional terminals of the truck's onboard OBD interface. That is, the first connector 1 is plugged into the onboard OBD interface, and the second connector 21 of the second connector 2 is connected to the vehicle diagnostic tool, thus connecting the vehicle diagnostic tool 20 to the onboard OBD interface. This allows the vehicle diagnostic tool 20 to obtain the truck's status parameters through the onboard OBD interface. Furthermore, based on the connection of one end of the second wiring harness 4 to the connector 12, a third connector 5 is plugged into the dashcam, connecting the vehicle diagnostic tool to the dashcam. This allows the vehicle diagnostic tool to determine the vehicle's status. If the status parameters meet the data interaction conditions, it means that the dashcam is in a state where data writing is allowed. Conversely, if the data interaction conditions are not met, it means that the dashcam is in a state where data writing is not allowed. Then, after meeting the data interaction conditions, the truck's speed adjustment coefficient is written into the dashcam to avoid failure during the writing process. This improves the first-time writing success rate of the program, meets the factory's first-time writing success rate requirements, and enables the calibration of the vehicle speed displayed on the new truck's human-machine interface, so that the truck's displayed speed conforms to industry standards.

[0030] The truck status parameters may include information such as engine speed, vehicle gear position, vehicle speed, and power-on status parameters, without specific limitations. Data interaction conditions are pre-set vehicle status conditions that allow data exchange between the vehicle diagnostic tool and the dashcam. For example, the data interaction conditions could be that the vehicle is in park, the vehicle speed is 0, and the power-on status parameter is "vehicle powered on." Alternatively, other data interaction conditions can be set based on actual conditions, provided that the speed adjustment coefficient can be correctly written and it is safe; there are no restrictions on this.

[0031] The arrangement of the multiple data connection terminals within the first plug-in terminal 13 can be referred to [reference needed]. Figure 2As shown, terminal 6 is the CANH terminal, terminal 14 is the CANL terminal, terminals 4 and 5 are ground terminals, and terminal 16 is the power supply terminal. The speed adjustment coefficient to be written is transmitted through terminal 14. Furthermore, the second connector 21 has multiple functional pins 23, the pin distribution of which can be found in [reference needed]. Figure 3 As shown.

[0032] One end of the first wiring harness 3 is electrically connected to multiple data connection terminals via a first connection terminal 14, and the other end of the first wiring harness 3 is electrically connected to multiple functional pins 23 via a second connection terminal 22. That is, the multiple data connection terminals and the multiple functional pins 23 are connected by the first wiring harness... Figure 2 The numbers shown correspond one-to-one, that is, terminal 1 of the first plug 1 is connected to terminal 1 of the second plug 2, terminal 2 of the first plug 1 is connected to terminal 2 of the second plug 2, and so on, and the connection between the two is completed through the first wire harness 3.

[0033] According to the wiring harness assembly 10 of this utility model embodiment, when writing the speed adjustment coefficient, the vehicle diagnostic tool can connect to the truck's driving recorder and the truck's on-board OBD interface through the wiring harness assembly 10. Thus, the vehicle diagnostic tool can obtain the truck's status parameters through the on-board OBD interface, and after determining that the status parameters meet the data interaction conditions, write the truck's speed adjustment coefficient into the driving recorder. On the one hand, this realizes the vehicle speed calibration of the truck's new human-machine interface, so that the displayed vehicle speed conforms to industry standards; on the other hand, it improves the first-pass yield of factory program writing, so as to meet the requirements of the first-pass yield of factory program writing.

[0034] In some embodiments, one end of the second wire harness 4 is detachably connected to the connector 12. This facilitates both storage of the wire harness and user removal and replacement of damaged wire harnesses.

[0035] In some embodiments, as Figure 1 As shown, a connection switch 15 is also provided on the housing 11. The connection switch 15 is used to lock when the first plug 1 is connected to the vehicle OBD interface.

[0036] Specifically, since the wiring harness assembly has a certain weight, when the first plug 1 is plugged into the vehicle OBD interface, the first plug 1 is prone to falling off due to gravity. Therefore, by setting a connection switch 15 on the housing 11, when the first plug 1 is connected to the vehicle OBD interface, the two can be locked by touching the connection switch 15, thereby avoiding the problem of the first plug 1 falling off due to gravity.

[0037] In addition, it is understandable that before unplugging the first plug 1, the connection switch 15 must be activated to release the lock between the first plug 1 and the vehicle OBD interface.

[0038] In some embodiments, the plurality of data connection terminals include at least a data connection terminal for transmitting a speed adjustment coefficient, and the plurality of functional pins include at least a data transmission pin for transmitting a speed adjustment coefficient; Reference Figure 4 As shown, the third plug 5 includes a data transmission interface for adjusting the transmission speed coefficient, a power supply interface, a grounding interface, and a spare interface.

[0039] For example, refer to Figure 2 As shown, terminal 14 of the first plug 1 is the data connection terminal for the transmission speed adjustment coefficient. Based on the terminal distribution of each plug, when writing data, the speed adjustment coefficient is synchronized to the driving recorder through terminal 14 of the second plug 2, terminal 14 of the third plug 5 and the data transmission interface, so as to realize the vehicle speed calibration of the vehicle speed displayed on the truck's new human-machine interface.

[0040] In some embodiments, reference Figure 4 As shown, the outer shell of the third plug 5 includes a rectangular portion and a semi-circular portion, which are connected. This design makes plugging and unplugging the third plug 5 more convenient and quick, and also reduces the problem of damage to the third plug 5 due to frequent plugging and unplugging.

[0041] In some embodiments, the vehicle OBD interface includes sixteen functional interfaces, which are arranged in a two-row, eight-column matrix. Therefore, to adapt to the interface configuration of the vehicle OBD interface, the first plug-in terminal 13 is provided with sixteen data connection terminals, which are arranged in a two-row, eight-column matrix, such as... Figure 2 As shown.

[0042] In some embodiments, the second plug 2 includes an annular housing, that is, the housing of the second plug 2 has an annular columnar structure, a plurality of functional pins are located on the inner circumferential side of the annular housing, and the plurality of functional pins extend along the axial direction of the annular housing.

[0043] In some embodiments, the annular housing is provided with a snap-fit ​​portion for engaging the second plug with the socket of the vehicle diagnostic instrument. This design ensures that when the second plug 2 is connected to the vehicle diagnostic instrument, the snap-fit ​​portion engages with the socket of the vehicle diagnostic instrument, thus preventing the second plug 2 from falling off due to gravity.

[0044] The following describes a method for calibrating vehicle speed using a vehicle diagnostic tool, based on the aforementioned vehicle diagnostic tool. This method includes at least steps S1-S2.

[0045] Step S1: After confirming the connection with the wiring harness assembly, obtain the truck's status parameters.

[0046] Specifically, after the vehicle diagnostic tool is connected to the wiring harness assembly, the vehicle diagnostic tool can connect to the truck's driving recorder and the truck's on-board OBD interface through the wiring harness assembly 10. Therefore, the vehicle diagnostic tool can obtain the truck's status parameters through the on-board OBD interface. The truck's status parameters may include information such as engine speed, vehicle gear status, vehicle speed, and power-on status parameters, etc., without specific limitations here.

[0047] Step S2: After the status parameters meet the data interaction conditions, the truck's speed adjustment coefficient is written into the driving recorder.

[0048] Specifically, confirming that the status parameters meet the data interaction conditions indicates a high success rate in flashing the program to the dashcam, thus avoiding failures during program flashing, improving the first-time flashing success rate to meet the factory's first-time flashing success rate requirements, and flashing the truck's speed adjustment coefficient into the dashcam after the status parameters meet the data interaction conditions, thereby calibrating the vehicle speed displayed on the truck's new human-machine interface to ensure that the truck's displayed speed conforms to industry standards.

[0049] In some embodiments, the status parameters include at least power-on status parameters and vehicle gear status parameters.

[0050] Specifically, the stability of the truck's power supply is determined by the power-on status parameters to avoid writing failure due to power failure when writing the truck's speed adjustment coefficient to the dashcam. The vehicle's driving status is determined by the vehicle's gear status parameters to avoid writing the truck's speed adjustment coefficient to the dashcam while the vehicle is in motion, which could lead to danger.

[0051] In some embodiments, before writing the truck's speed adjustment coefficient into the dashcam, the method further includes receiving a user-provided command to start a diagnostic session and entering a data writing mode.

[0052] Specifically, the truck's speed adjustment coefficient can only be written to the dashcam in data writing mode, thus avoiding data writing without user permission, which would cause the writing process to fail.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0054] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wire harness assembly, characterized in that, include: The first plug includes a housing, on which a plug interface, a first plug end, and a first connection end are formed. The first plug end is provided with a plurality of data connection terminals, and the data connection terminals are matched with the functional terminals of the on-board OBD interface on the truck. The second plug includes a second plug end and a second connection end. The second plug end is provided with a plurality of functional pins. The second plug is used to connect to a vehicle diagnostic instrument. The functional pins are configured to correspond one-to-one with the data connection terminals. A first wire harness, one end of which is connected to the first connection terminal, and the other end of which is connected to the second connection terminal; The second wiring harness has one end connected to the connector, and the second end of the second wiring harness has a third plug, which is used to connect the truck's dashcam when writing the speed adjustment coefficient.

2. The wire harness assembly according to claim 1, characterized in that, One end of the second wire harness is detachably connected to the plug interface.

3. The wire harness assembly according to claim 2, characterized in that, The housing is also provided with a connection switch, which is used to lock the first plug when it is connected to the vehicle OBD interface.

4. The wire harness assembly according to claim 2, characterized in that, The plurality of data connection terminals include at least a data connection terminal for transmitting the speed adjustment coefficient, and the plurality of functional pins include at least a data transmission pin for transmitting the speed adjustment coefficient; The third plug includes a data transmission interface, a power supply interface, a grounding interface, and a backup interface for transmitting the speed adjustment coefficient.

5. The wire harness assembly according to claim 4, characterized in that, The outer shell of the third plug includes a rectangular portion and a semi-circular portion, and the rectangular portion is connected to the semi-circular portion.

6. The wire harness assembly according to claim 2, characterized in that, The vehicle-mounted OBD interface includes sixteen functional interfaces, which are arranged in a matrix of two rows and eight columns. The first plug-in terminal is provided with sixteen data connection terminals, which are arranged in a matrix of two rows and eight columns.

7. The wire harness assembly according to claim 1, characterized in that, The second plug includes an annular housing, with a plurality of functional pins located on the inner circumferential side of the annular housing and extending along the axial direction of the annular housing.

8. The wire harness assembly according to claim 7, characterized in that, The annular housing is provided with a snap-fit ​​part, which is used to engage the second plug with the socket of the vehicle diagnostic instrument.

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