A method, system, device and medium for calculating the outer diameter of an automobile wire harness

Abstract

The application discloses a kind of automobile wire harness outer diameter calculation method, system, equipment and medium, it is related to automobile electrical design field, the method includes: obtaining component pin information;Component pin information includes the wire diameter of each wire in wire harness, wire type and the number of each wire diameter wire;According to the wire diameter and wire type of each wire, the maximum outer diameter of each wire is determined respectively;According to the maximum outer diameter of each wire and the number of each wire diameter wire, the initial wire harness outer diameter is calculated;Determine the outermost wire harness protection material and the outermost wire harness protection mode;Wire harness protection material includes: adhesive tape and tubular object;Wire harness protection mode includes: full winding, point winding and flower winding;According to the outermost wire harness protection material, the outermost wire harness protection mode and the initial wire harness outer diameter, the final wire harness outer diameter is calculated.The application can quickly and accurately calculate the outer diameter size of low-voltage wire harness, thereby improving the 3D design efficiency of low-voltage wire harness, and improving the accuracy of low-voltage wire harness 3D design.

Description

A method, system, device and medium for calculating the outer diameter of automotive wiring harnesses Technical Field

[0001] This invention relates to the field of automotive electrical design, and in particular to a method, system, device, and medium for calculating the outer diameter of automotive wiring harnesses. Background Technology

[0002] The low-voltage wiring harness in a vehicle serves as a bridge connecting various electrical components to achieve the vehicle's electrical functions, playing an indispensable role in the overall vehicle design. Before designing the 3D digital model layout of the low-voltage wiring harness based on the vehicle's digital model, it is necessary to collect electrical information for electrical principle design, including functional descriptions, component schematics, connector models, terminal models, etc., and then create 2D drawings based on the 3D digital model layout results of the low-voltage wiring harness.

[0003] The spatial arrangement of low-voltage wiring harnesses also needs to be considered in 3D layout. Space utilization, assembly operations, and the impact of spatial deformation are all within the engineers' scope. This necessitates accurately knowing the outer diameter of the low-voltage wiring harness in the early stages of 3D development and design to ensure it is within the margin of error compared to the actual dimensions. However, currently, the outer diameter of low-voltage wiring harnesses is determined by collecting electrical information to determine the number of wires, which is then estimated by engineers based on their work experience. This not only involves a large workload in collecting electrical information in the early stages and is limited by work experience, but the estimation cannot be guaranteed to be within the margin of error, easily increasing the error rate, raising trial-and-error costs, and adding unnecessary repetitive work in the early stages of development. Summary of the Invention

[0004] The purpose of this invention is to provide a method, system, device and medium for calculating the outer diameter of automotive wiring harnesses, so as to quickly and accurately calculate the outer diameter of low-voltage wiring harnesses, improve the efficiency of low-voltage wiring harness 3D design, and enhance the accuracy of low-voltage wiring harness 3D design.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] A method for calculating the outer diameter of an automotive wiring harness, the method comprising:

[0007] Obtain component pin information; the component pin information includes the wire diameter, wire type, and number of wires of each wire diameter in the wire harness;

[0008] Determine the maximum outer diameter of each conductor based on its diameter and type.

[0009] Calculate the initial outer diameter of the wire bundle based on the maximum outer diameter of each conductor and the number of conductors of each diameter;

[0010] The outermost wire harness protection material and the outermost wire harness protection method are determined; the wire harness protection material includes: tape and tubular materials; the wire harness protection method includes: full wrapping, spot wrapping, and patterned wrapping;

[0011] Calculate the final outer diameter of the wire harness based on the outermost wire harness protection material, the outermost wire harness protection method, and the initial wire harness outer diameter.

[0012] Optionally, the initial bundle outer diameter is calculated based on the maximum outer diameter of each conductor and the number of conductors of each diameter, specifically including:

[0013] Determine whether there are crimp points in the wire harness to obtain the first judgment result;

[0014] If the first judgment result is yes, then the outer diameter of the crimped wire is calculated based on the crimping point form information, the maximum outer diameter of each wire, and the number of wires of each wire diameter. A non-circular packaging calculation method is used to calculate the initial wire harness outer diameter based on the crimped wire outer diameter, the maximum outer diameter of each wire, and the number of wires of each wire diameter. The crimping point form information includes: the number of wires of each wire diameter at the crimping point, the number of wires of each wire diameter in the equivalent wire, the type of wire harness protection material at the crimping point, and the thickness of the wire harness protection material at the crimping point. The equivalent wire consists of all wires on the side with the largest sum of wire diameters at the crimping point.

[0015] If the first judgment result is negative, then it is determined whether the wire diameters of each wire in the wire harness are equal, and a second judgment result is obtained.

[0016] If the second judgment result is yes, then the equal circle packaging calculation method is adopted to calculate the initial wire bundle outer diameter based on the maximum outer diameter of each wire and the number of wires of each diameter;

[0017] If the second judgment result is negative, then the non-circular packaging calculation method is adopted to calculate the initial wire bundle outer diameter based on the maximum outer diameter of each wire and the number of wires of each diameter.

[0018] Optionally, the outer diameter of the crimped wire can be calculated based on the type of the crimping point, the maximum outer diameter of each wire, and the number of wires of each diameter. The specific formula is as follows:

[0019]

[0020] Where: d' is the outer diameter of the crimped wire; m is the total number of wire diameter types in the wire harness; i is the serial number of the wire diameter type in the wire harness; s i d represents the number of conductors of the i-th type in the equivalent conductor; idenoted as , where is the maximum outer diameter of the wire of type i; K is the type of wire harness protection material at the crimping point. When the wire harness protection material at the crimping point is tape, K = 2; when the wire harness protection material at the crimping point is tubular, K = 1; T is the thickness of the wire harness protection material at the crimping point; η is a function related to the total number of wires in the wire harness and the diameter of each wire in the wire harness. When the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is greater than 10, η = 1.25; when the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is less than or equal to 10, η = 1.30; when the diameters of each wire in the wire harness are unequal and the total number of wires in the wire harness is greater than 10, η = 1.75; when the diameters of each wire in the wire harness are unequal and the total number of wires in the wire harness is less than or equal to 10, η = 1.70.

[0021] Optionally, a non-circular packaging calculation method is used to calculate the initial wire harness outer diameter based on the outer diameter of the crimped wire, the maximum outer diameter of each wire, and the number of wires of each diameter. The specific formula is as follows:

[0022]

[0023] Where: D0 is the initial outer diameter of the wire harness; m is the total number of wire diameter types in the wire harness; i is the serial number of the wire diameter type in the wire harness; n i n' represents the number of wires of type i with diameter in the wire harness; i d represents the number of wires of the i-th wire diameter at the crimp point; i d' is the maximum outer diameter of the wire of type i; d' is the outer diameter of the crimped wire; η is a function related to the total number of wires in the bundle and the diameter of each wire in the bundle. When the diameters of each wire in the bundle are equal and the total number of wires in the bundle is greater than 10, η = 1.25; when the diameters of each wire in the bundle are equal and the total number of wires in the bundle is less than or equal to 10, η = 1.30; when the diameters of each wire in the bundle are not equal and the total number of wires in the bundle is greater than 10, η = 1.75; when the diameters of each wire in the bundle are not equal and the total number of wires in the bundle is less than or equal to 10, η = 1.70.

[0024] Optionally, an equal-circle packaging calculation method is used to calculate the initial bundle outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter. The specific formula is as follows:

[0025]

[0026] Where: D0 is the initial outer diameter of the wire harness; n is the total number of wires in the wire harness; d0 is the maximum outer diameter of any single wire in the wire harness; η is a function related to the total number of wires in the wire harness and the diameter of each wire in the wire harness. When the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is greater than 10, η = 1.25; when the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is less than or equal to 10, η = 1.30; when the diameters of each wire in the wire harness are not equal and the total number of wires in the wire harness is greater than 10, η = 1.75; when the diameters of each wire in the wire harness are not equal and the total number of wires in the wire harness is less than or equal to 10, η = 1.70.

[0027] Optionally, a non-circular packaging calculation method is used to calculate the initial bundle outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter. The specific formula is as follows:

[0028]

[0029] Where: D0 is the initial outer diameter of the wire harness; n is the total number of conductors in the wire harness; m is the total number of different wire diameter types in the wire harness; i is the serial number of the different wire diameter types in the wire harness; n i d represents the number of wires of type i with diameter in the wire harness; i Let be the maximum outer diameter of the wire of type i; η is a function related to the total number of wires in the bundle and the diameter of each wire in the bundle. When the diameters of all wires in the bundle are equal and the total number of wires in the bundle is greater than 10, η = 1.25; when the diameters of all wires in the bundle are equal and the total number of wires in the bundle is less than or equal to 10, η = 1.30; when the diameters of all wires in the bundle are not equal and the total number of wires in the bundle is greater than 10, η = 1.75; when the diameters of all wires in the bundle are not equal and the total number of wires in the bundle is less than or equal to 10, η = 1.70.

[0030] Optionally, when there are crimp points in the wire harness, the formula for calculating the total number of wires in the wire harness is:

[0031]

[0032] When there are no crimp points in the wire harness, the formula for calculating the total number of wires in the wire harness is:

[0033]

[0034] Where: n is the total number of wires in the wire harness; n i n' represents the number of wires of type i with diameter in the wire harness; i s represents the number of wires of the i-th wire diameter at the crimp point; iThis represents the number of conductors of the i-th type diameter in the equivalent conductor.

[0035] A system for calculating the outer diameter of an automotive wiring harness, the system comprising:

[0036] An information acquisition unit is used to acquire component pin information; the component pin information includes the wire diameter, wire type, and number of wires of each wire diameter in the wire harness;

[0037] The maximum outer diameter determination unit is used to determine the maximum outer diameter of each conductor based on its diameter and type.

[0038] The initial harness outer diameter calculation unit is used to calculate the initial harness outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter;

[0039] The technical requirements determination unit is used to determine the outermost wire harness protection material and the outermost wire harness protection method; the wire harness protection material includes: tape and tubular materials; the wire harness protection method includes: full wrapping, spot wrapping, and patterned wrapping;

[0040] The final harness outer diameter calculation unit is used to calculate the final harness outer diameter based on the outermost harness protection material, the outermost harness protection method, and the initial harness outer diameter.

[0041] An electronic device includes a memory and a processor, the memory storing a computer program, and the processor running the computer program to cause the electronic device to perform the above-described method for calculating the outer diameter of automotive wiring harnesses.

[0042] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for calculating the outer diameter of an automotive wiring harness.

[0043] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0044] The method for calculating the outer diameter of automotive wiring harnesses provided by this invention can obtain the wire diameter, wire type, and number of wires of each diameter in the wiring harness. Then, based on the wire diameter and wire type of each wire, the maximum outer diameter of each wire is determined. Based on the maximum outer diameter of each wire and the number of wires of each diameter, the initial outer diameter of the wiring harness is calculated. Finally, based on the outermost wiring harness protection material, the outermost wiring harness protection method, and the initial outer diameter of the wiring harness, the final outer diameter of the wiring harness is calculated. Compared with existing technologies, this invention can systematically calculate the outer diameter of low-voltage wiring harnesses according to the technical requirements, thereby quickly and accurately calculating the outer diameter of the low-voltage wiring harness. This provides continuity in low-voltage wiring harness 3D design, improves the efficiency of low-voltage wiring harness 3D design, and enhances the accuracy of low-voltage wiring harness 3D design. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 is a flowchart of the method for calculating the outer diameter of automotive wiring harnesses provided by the present invention;

[0047] Figure 2 is a block diagram of the automotive wiring harness outer diameter calculation system provided by the present invention;

[0048] Figure 3 is a flowchart illustrating the operating principle of the automotive wiring harness outer diameter calculation system provided by the present invention.

[0049] Symbol explanation:

[0050] Standard wire harness unit library—1, electrical information unit library—2, wire diameter calculation module—3, information acquisition unit—31, maximum outer diameter determination unit—32, initial wire harness outer diameter calculation unit—33, technical requirements determination unit—34, final wire harness outer diameter calculation unit—35. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Currently, a significant amount of time is required to collect electrical information before designing the 3D digital model layout of the low-voltage wiring harness for the entire vehicle, resulting in a complex workload. The outer diameter of the 3D design of the low-voltage wiring harness is estimated by engineers based on their work experience, but the estimation error is large and difficult to determine. The outer diameter of the 3D design of the low-voltage wiring harness can also be measured based on the physical object, but this will undoubtedly increase the workload in the early stages, and the wiring harness changes are more volatile, making it difficult to make real-time changes.

[0053] The purpose of this invention is to provide a method, system, device and medium for calculating the outer diameter of automotive wiring harnesses, so as to quickly and accurately calculate the outer diameter of low-voltage wiring harnesses, improve the efficiency of low-voltage wiring harness 3D design, and enhance the accuracy of low-voltage wiring harness 3D design.

[0054] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] Figure 1 is a flowchart of the method for calculating the outer diameter of automotive wiring harnesses provided by the present invention. As shown in Figure 1, the method for calculating the outer diameter of automotive wiring harnesses includes:

[0056] Step S1: Obtain component pin information; the component pin information includes the wire diameter, wire type, and number of wires of each diameter in the wiring harness. The component pin information is stored in the electrical information unit library.

[0057] Specifically, the electrical information unit library stores component function descriptions, component schematics, component connector models, and component pin information, wherein the component pin information includes the circuit number, wire diameter (i), wire type, and number of wires (n) for each conductor. i );

[0058] Step S2: Determine the maximum outer diameter of each conductor based on its diameter and type.

[0059] Specifically, the maximum outer diameter of each conductor is determined based on a standard wire harness unit library. This standard wire harness unit library stores conductors of various specifications (i.e., wire diameter and wire type) and their maximum outer diameter (d). i This allows us to directly look up the maximum outer diameter of each conductor based on its diameter and type.

[0060] Step S3: Calculate the initial bundle outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter. Step S3 specifically includes:

[0061] Step S3.1: Determine whether there are crimping points in the wire harness to obtain the first judgment result.

[0062] Step S3.2: If the first judgment result is yes, then calculate the outer diameter of the crimped wire based on the form information of the crimp point, the maximum outer diameter of each wire, and the number of wires of each wire diameter. Then, use the non-circular packaging calculation method to calculate the initial wire harness outer diameter based on the outer diameter of the crimped wire, the maximum outer diameter of each wire, and the number of wires of each wire diameter. The form information of the crimp point includes: the number of wires of each wire diameter at the crimp point, the number of wires of each wire diameter in the equivalent wire, the type of wire harness protection material at the crimp point, and the thickness of the wire harness protection material at the crimp point. The equivalent wire consists of all wires on the side with the largest sum of wire diameters at the crimp point.

[0063] Preferably, the outer diameter of the crimped wire is calculated based on the type of the crimping point, the maximum outer diameter of each wire, and the number of wires of each diameter. The specific formula is as follows:

[0064]

[0065] Where: d' is the outer diameter of the crimped wire; m is the total number of wire diameter types in the wire harness; i is the serial number of the wire diameter type in the wire harness; si d represents the number of conductors of the i-th type in the equivalent conductor; i denoted as , where is the maximum outer diameter of the wire of type i; K is the type of wire harness protection material at the crimping point. When the wire harness protection material at the crimping point is tape, K = 2; when the wire harness protection material at the crimping point is tubular, K = 1; T is the thickness of the wire harness protection material at the crimping point; η is a function related to the total number of wires in the wire harness and the diameter of each wire in the wire harness. When the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is greater than 10, η = 1.25; when the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is less than or equal to 10, η = 1.30; when the diameters of each wire in the wire harness are unequal and the total number of wires in the wire harness is greater than 10, η = 1.75; when the diameters of each wire in the wire harness are unequal and the total number of wires in the wire harness is less than or equal to 10, η = 1.70.

[0066] Preferably, a non-circular packaging calculation method is used to calculate the initial wire harness outer diameter based on the outer diameter of the crimped wire, the maximum outer diameter of each wire, and the number of wires of each diameter. The specific formula is as follows:

[0067]

[0068] Where: D0 is the initial outer diameter of the wire harness; n i n' represents the number of wires of type i with diameter in the wire harness; i This represents the number of wires of the i-th wire diameter at the crimp point.

[0069] It should be noted that when there are crimped points in the wire harness, the wire diameters of the conductors in the harness are considered to be unequal. Therefore, in this case, η is either 1.75 or 1.70, and its specific value is determined by the total number of conductors in the wire harness.

[0070] Step S3.3: If the first judgment result is negative, then determine whether the wire diameters of each wire in the wire harness are equal, and obtain the second judgment result.

[0071] Step S3.4: If the second judgment result is yes, then the equal circle packaging calculation method is used to calculate the initial wire bundle outer diameter based on the maximum outer diameter of each wire and the number of wires of each diameter.

[0072] Preferably, the equal-circle packaging calculation method is adopted to calculate the initial bundle outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter. The specific formula is as follows:

[0073]

[0074] Where: n is the total number of wires in the wire harness; d0 is the maximum outer diameter of any wire in the wire harness; and since the wire diameters of all wires in the wire harness are equal at this time, the value of η is 1.25 or 1.30, and its specific value is determined by the total number of wires in the wire harness.

[0075] Step S3.5: If the second judgment result is negative, the non-circular packaging calculation method is used to calculate the initial wire bundle outer diameter based on the maximum outer diameter of each wire and the number of wires of each diameter.

[0076] Preferably, a non-circular packaging calculation method is used to calculate the initial bundle outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter. The specific formula is as follows:

[0077]

[0078] At this point, since the wire diameters of the conductors in the harness are not equal, the value of η is 1.75 or 1.70, and its specific value is determined by the total number of conductors in the harness.

[0079] As a specific implementation method, when crimp points exist in the wire harness, the formula for calculating the total number of wires in the wire harness is:

[0080]

[0081] When there are no crimp points in the wire harness, the formula for calculating the total number of wires in the wire harness is:

[0082]

[0083] Where: s i This represents the number of conductors of the i-th type diameter in the equivalent conductor.

[0084] Step S4: Determine the outermost wire harness protection material and the outermost wire harness protection method; the wire harness protection material includes: tape and tubular materials; the wire harness protection method includes: full wrapping, spot wrapping and patterned wrapping.

[0085] Step S5: Calculate the final outer diameter of the wire harness based on the outermost wire harness protection material, the outermost wire harness protection method, and the initial wire harness outer diameter.

[0086] As a specific implementation method, considering that there is still redundancy between the physical object and the digital model, after calculating the final wire harness outer diameter, it is necessary to round up the final wire harness outer diameter as the wire harness outer diameter value of the 3D design.

[0087] In order to implement the above-mentioned methods and achieve the corresponding functions and technical effects, an automotive wiring harness outer diameter calculation system is provided below.

[0088] Figure 2 is a block diagram of the automotive wiring harness outer diameter calculation system provided by the present invention. As shown in Figure 2, the automotive wiring harness outer diameter calculation system includes:

[0089] Information acquisition unit 31 is used to acquire component pin information; the component pin information includes the wire diameter, wire type and number of wires of each wire in the wire harness.

[0090] The maximum outer diameter determination unit 32 is used to determine the maximum outer diameter of each conductor according to the wire diameter and wire type.

[0091] The initial wire harness outer diameter calculation unit 33 is used to calculate the initial wire harness outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter.

[0092] Technical requirement determination unit 34 is used to determine the outermost wire harness protection material and the outermost wire harness protection method; the wire harness protection material includes: tape and tubular material; the wire harness protection method includes: full wrapping, spot wrapping and pattern wrapping.

[0093] The final harness outer diameter calculation unit 35 is used to calculate the final harness outer diameter based on the outermost harness protection material, the outermost harness protection method, and the initial harness outer diameter.

[0094] Furthermore, the automotive wiring harness outer diameter calculation system also includes: a standard wiring harness unit library 1 and an electrical information unit library 2. The electrical information unit library 2 stores component function descriptions, component schematics, component connector models, and component pin information; the standard wiring harness unit library 1 stores conductors of various specifications (i.e., wire diameter and wire type) and their maximum outer diameter.

[0095] In this embodiment, the information acquisition unit 31, the maximum outer diameter determination unit 32, the initial wire harness outer diameter calculation unit 33, the technical requirement determination unit 34, and the final wire harness outer diameter calculation unit 35 together constitute the wire diameter calculation module 3. The information acquisition unit 31 is connected to the electrical information unit library 2, thereby directly calling the component pin information stored in the electrical information unit library 2. The maximum outer diameter determination unit 32 is connected to the information acquisition unit 31 and the standard wire harness unit library 1 respectively, thereby determining the maximum outer diameter of each wire according to the wire diameter and wire type.

[0096] As one specific implementation, the initial wire harness outer diameter calculation unit 33 includes: a packing calculation module, a non-circular packing calculation module, and a splice wire calculation module.

[0097] The crimped wire calculation module is used to calculate the outer diameter of the crimped wire when there are crimped points in the wire harness, based on the form information of the crimped points, the maximum outer diameter of each wire, and the number of wires of each diameter.

[0098] The equal-circle packaging calculation module is used to calculate the initial outer diameter of the wire harness when there are no crimping points in the wire harness and the wire diameters of all wires are equal, using the equal-circle packaging calculation method, based on the maximum outer diameter of each wire and the number of wires of each diameter.

[0099] The non-circular packaging calculation module is used to: calculate the initial outer diameter of the wire harness based on the outer diameter of the crimped wire, the maximum outer diameter of each wire, and the number of wires of each diameter when there are crimped points in the wire harness; and calculate the initial outer diameter of the wire harness based on the maximum outer diameter of each wire and the number of wires of each diameter when there are no crimped points in the wire harness and the wire diameters of each wire are not equal.

[0100] Furthermore, the technical requirement determination unit 34 and the final wire harness outer diameter calculation unit 35 together constitute a technical requirement module, and the technical requirement module stores wire harness protection materials and wire harness protection methods, etc.

[0101] Figure 3 is a flowchart illustrating the operating principle of the automotive wiring harness outer diameter calculation system provided by this invention. As shown in Figure 3, the overall solution of this invention is as follows:

[0102] (1) Based on each wire harness, retrieve the wire diameter (i), wire type, and number of wires (n) from the component pin information in the electrical information unit library. i ), proceed to the next step.

[0103] (2) Enter the standard wire harness unit library and determine the maximum outer diameter (d) of each conductor according to the wire diameter (i) and wire type. i ), proceed to the next step.

[0104] (3) Enter the Splice wire calculation module in the initial wire harness outer diameter calculation unit 33 in the wire diameter calculation module 3, determine whether there is a Splice point in the wire harness, if so, calculate the outer diameter (d') of the Splice wire according to its Splice point form, and execute step (7); otherwise, execute the next step.

[0105] Specifically, in step (3), the conductor at the Splice point is equivalent to a single Splice conductor with an outer diameter (d'). According to the form of the Splice point in the wire harness, (n' i (s) represents the number of conductors of each diameter at the Splice point. Only the side with the largest sum of conductor diameters is considered as the equivalent conductor. iThe formula (d') represents the number of conductors of each diameter in the equivalent conductor, and is calculated within a 50mm equivalent influence range around the Splice point, taking into account the wire harness protection material.

[0106]

[0107] Where K represents the type of wire harness protection method, and T represents the thickness of the wire harness protection material, as detailed below:

[0108] If the splice point is located in a dry area of ​​the vehicle and has no waterproofing requirements, then insulating tape (wiring harness protection material) should be selected for protection. In this case, K=2, and T is the thickness of the insulating tape.

[0109]

[0110] If the splice point is located in a wet area of ​​the vehicle and requires waterproofing, then heat shrink tubing (wiring harness protection material) should be selected for protection. In this case, K=1, and T is the wall thickness of the heat shrink tubing after shrinkage.

[0111]

[0112] (4) Determine whether the wire diameter (i) in the wire harness is uniform (i.e. equal). If so, let i = 0 (i.e., the maximum outer diameter of any wire in the wire harness can represent the maximum outer diameter of all wires in the wire harness, so it is represented as d0), enter the equal circle Packing calculation module, and execute the next step; otherwise, i ≠ 0, enter the non-equal circle Packing calculation module, and execute step (6).

[0113] (5) Calculate the initial wire harness outer diameter (D0) in the equal-circle Packing calculation module. The formula is:

[0114]

[0115] Determine if the total number of wires (n) is greater than 10. If so, η = 1.25; otherwise, η = 1.30, and proceed to step (8).

[0116] (6) Calculate the initial harness outer diameter (D0) in the first non-circular Packing calculation module. The formula is:

[0117]

[0118]

[0119] Determine if the total number of wires (n) is greater than 10. If so, η = 1.75; otherwise, η = 1.70, and proceed to step (8).

[0120] (7) Calculate the initial wire harness outer diameter (D0) in the second non-circular Packing calculation module. The formula is:

[0121]

[0122]

[0123] Determine if the total number of wires (n) is greater than 10. If so, η = 1.75; otherwise, η = 1.70, and proceed to step (8).

[0124] (8) Enter the technical requirements module, calculate the final outer diameter (D) of the wire harness according to the required wire harness protection material and wire harness protection method. Considering that there is still redundancy between the physical object and the digital model, (D) is rounded up as the outer diameter value of the wire harness in the 3D design. The calculation ends.

[0125] Specifically, in step (8), when the outermost protective material of the wire harness is tape, the formula for calculating the final outer diameter of the wire harness is:

[0126] D = D0 + 2PT

[0127] Where P represents the type of wire harness protection method. When the wire harness protection method is full wrapping or point wrapping, P = 2; when the wire harness protection method is flower wrapping, P = 1.

[0128] When the outermost protective material of the wire harness is a tubular material, the tubular material is selected according to (D0), and the final formula for calculating the outer diameter of the wire harness is:

[0129] D = D1

[0130] Where D1 is the outer diameter of the tubular object.

[0131] To provide a clearer explanation of the above-mentioned method and system for calculating the outer diameter of automotive wiring harnesses, a specific example is provided below.

[0132] 1) Based on each wire harness, retrieve the wire diameter (i), wire type, and number of wires (n) from the component pin information in the electrical information database. i In this embodiment, it is assumed that all wires in a certain wire harness are of the German standard FLRY-B, and the wire diameter (i) and the number of wires (n) are... i If there are four 0.35 wires and eight 0.5 wires, then the number of 0.35 wires is (n1), the number of 0.5 wires is (n2), m = 2, proceed to the next step.

[0133] 2) Enter the standard wire harness unit library and determine the maximum outer diameter (d) of each conductor according to the wire diameter (i) and wire type. i Based on the assumptions, the maximum outer diameter of the 0.35 wire is (d1), and the maximum outer diameter of the 0.5 wire is (d2). Proceed to the next step.

[0134] 3) Enter the Splice wire calculation module in the wire diameter calculation module, determine whether there is a Splice point in the wire harness. If so, calculate the outer diameter (d') of the Splice wire according to its Splice point form, and execute step 7); otherwise, proceed to the next step.

[0135] In this embodiment, assuming there are Splice points in this wire harness, the conductor at the Splice point is equivalent to a single Splice conductor with an outer diameter (d'). Based on the form of the wire harness Splice points, assuming this wire harness Splice point is formed by crimping four 0.5mm conductors to three 0.5mm conductors, using (n' i () represents the number of conductors of each diameter at the Splice point. Only the side with the largest sum of conductor diameters is taken as the equivalent conductor, denoted by (s). i The formula (d') represents the number of conductors of each diameter in the equivalent conductor, and is calculated within a 50mm equivalent influence range around the Splice point, taking into account the wire harness protection material.

[0136]

[0137] Substituting the above data, we can obtain:

[0138]

[0139] At this point, the total number of wires in the harness is:

[0140]

[0141] Therefore, η = 1.70.

[0142] After calculating the outer diameter of the crimped wire using the above formula, skip steps 4)-6) and proceed to step 7).

[0143] 7) Calculate the initial harness outer diameter (D0) in the second non-circular packing calculation module. The formula is:

[0144]

[0145]

[0146] In this embodiment, it is assumed that the Splice point configuration of this wire harness is four 0.5mm wires crimped to three 0.5mm wires, (n' i () represents the number of conductors of each diameter at the Splice point. Only the side with the largest sum of conductor diameters is taken as the equivalent conductor. i The ) represents the number of wires of each diameter in the equivalent conductor. Based on the example, we can assume: n1 = 4, n'1 = 0, s1 = 0, n2 = 8, n'2 = 4 + 3 = 7, s2 = 4. Therefore:

[0147]

[0148] n = 9

[0149] Determine if the total number of wires (n) is greater than 10. If so, η = 1.75; otherwise, η = 1.70. Proceed to step 8). Based on the assumption that n = 9, then η = 1.70.

[0150] 8) Enter the technical requirements module, calculate the final outer diameter (D) of the wire harness according to the required wire harness protection material and wire harness protection method. Considering that there is still redundancy between the physical object and the digital model, (D) is rounded up as the outer diameter value of the wire harness in the 3D design. The calculation ends.

[0151] Furthermore, embodiments of the present invention also provide an electronic device, including a memory and a processor. The memory stores a computer program, and the processor runs the computer program to enable the electronic device to perform the above-described method for calculating the outer diameter of automotive wiring harnesses. The electronic device may be a server.

[0152] In addition, the present invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for calculating the outer diameter of automotive wiring harnesses.

[0153] In summary, the automotive wiring harness outer diameter calculation method, system, equipment, and medium provided by this invention can systematically calculate the outer diameter of wires of various specifications according to the technical requirements, giving low-voltage wiring harness 3D design continuity, improving the efficiency of low-voltage wiring harness 3D design, and increasing the accuracy of low-voltage wiring harness 3D design. Compared with the prior art, this invention has the following advantages:

[0154] 1) The automotive wiring harness outer diameter calculation system provided by this invention can reduce the early development workload of the whole vehicle wiring harness. The establishment of the system is conducive to subsequent platformization work, and can form inherent and sustainable data resources, giving low-voltage wiring harness 3D design continuity.

[0155] 2) The automotive wiring harness outer diameter calculation system provided by this invention can calculate complex wiring harness outer diameters in a very short time, which can adapt to the characteristics of frequent changes required in the early development of low-voltage wiring harnesses and improve the efficiency of 3D design of low-voltage wiring harnesses.

[0156] 3) The outer diameter of the automotive wiring harness calculated by the system provided by this invention can be accurate to two decimal places in millimeters, and the calculation results are guaranteed to be within the allowable error range, thereby improving the accuracy of 3D design of low-voltage wiring harnesses.

[0157] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to the method section.

[0158] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for calculating the outer diameter of an automotive wiring harness, characterized in that, The method for calculating the outer diameter of an automotive wiring harness includes: acquiring component pin information; the component pin information includes the wire diameter, wire type, and number of wires of each wire diameter in the wiring harness; determining the maximum outer diameter of each wire based on its wire diameter and wire type; calculating the initial wiring harness outer diameter based on the maximum outer diameter and number of wires of each wire diameter, specifically including: determining whether there is a crimping point in the wiring harness, obtaining a first determination result; if the first determination result is yes, then calculating the outer diameter of the crimped wire based on the form information of the crimping point, the maximum outer diameter of each wire, and the number of wires of each wire diameter, and using a non-circular packaging calculation method to calculate the initial wiring harness outer diameter based on the outer diameter of the crimped wire, the maximum outer diameter of each wire, and the number of wires of each wire diameter; the form information of the crimping point includes: the number of wires of each wire diameter at the crimping point, the number of wires of each wire diameter in the equivalent wire, the type of wiring harness protection material at the crimping point, and The thickness of the wire harness protective material at the crimping point; the equivalent conductor consists of all conductors on the side with the largest sum of conductor diameters at the crimping point; if the first judgment result is negative, then it is determined whether the conductor diameters in the wire harness are equal, and a second judgment result is obtained; if the second judgment result is positive, then the equal-circle packaging calculation method is used to calculate the initial wire harness outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter; if the second judgment result is negative, then the non-equal-circle packaging calculation method is used to calculate the initial wire harness outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter; the outermost wire harness protective material and the outermost wire harness protection method are determined; the wire harness protective material includes: tape and tubular material; the wire harness protection method includes: full wrapping, spot wrapping and pattern wrapping; the final wire harness outer diameter is calculated based on the outermost wire harness protective material, the outermost wire harness protection method and the initial wire harness outer diameter.

2. The method for calculating the outer diameter of automotive wiring harnesses according to claim 1, characterized in that, The outer diameter of the crimped wire is calculated based on the type of crimp point, the maximum outer diameter of each wire, and the number of wires of each diameter. The specific formula is as follows: Where: d' is the outer diameter of the crimped wire; m is the total number of wire diameter types in the wire harness; i is the serial number of the wire diameter type in the wire harness; s i d represents the number of conductors of the i-th type in the equivalent conductor; i η is the maximum outer diameter of the wire of type i; K is the type of wire harness protection material at the crimping point. When the wire harness protection material at the crimping point is tape, K=2; when the wire harness protection material at the crimping point is tubular, K=1; T is the thickness of the wire harness protection material at the crimping point; η is a function related to the total number of wires in the wire harness and the diameter of each wire in the wire harness. When the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is greater than 10, η=1.25; when the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is less than or equal to 10, η=1.30; when the diameters of each wire in the wire harness are not equal and the total number of wires in the wire harness is greater than 10, η=1.75; when the diameters of each wire in the wire harness are not equal and the total number of wires in the wire harness is less than or equal to 10, η=1.

70.

3. The method for calculating the outer diameter of automotive wiring harnesses according to claim 1, characterized in that, The non-circular packaging calculation method is adopted to calculate the initial wire bundle outer diameter based on the outer diameter of the crimped wire, the maximum outer diameter of each wire, and the number of wires of each diameter. The specific formula is as follows: Where: D0 is the initial outer diameter of the wire harness; m is the total number of wire diameter types in the wire harness; i is the serial number of the wire diameter type in the wire harness; n i n' represents the number of wires of type i with diameter in the wire harness; i d represents the number of wires of the i-th wire diameter at the crimp point; i d' is the maximum outer diameter of the wire of type i; d' is the outer diameter of the crimped wire; η is a function related to the total number of wires in the bundle and the diameter of each wire in the bundle. When the diameters of each wire in the bundle are equal and the total number of wires in the bundle is greater than 10, η = 1.25; when the diameters of each wire in the bundle are equal and the total number of wires in the bundle is less than or equal to 10, η = 1.30; when the diameters of each wire in the bundle are not equal and the total number of wires in the bundle is greater than 10, η = 1.75; when the diameters of each wire in the bundle are not equal and the total number of wires in the bundle is less than or equal to 10, η = 1.

70.

4. The method for calculating the outer diameter of automotive wiring harnesses according to claim 1, characterized in that, The initial bundle outer diameter is calculated using the equal-circle packaging method, based on the maximum outer diameter of each conductor and the number of conductors of each diameter. The specific formula is as follows: Where: D0 is the initial outer diameter of the wire harness; n is the total number of wires in the wire harness; d0 is the maximum outer diameter of any single wire in the wire harness; η is a function related to the total number of wires in the wire harness and the diameter of each wire in the wire harness. When the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is greater than 10, η = 1.25; when the diameters of each wire in the wire harness are equal and the total number of wires in the wire harness is less than or equal to 10, η = 1.30; when the diameters of each wire in the wire harness are unequal and the total number of wires in the wire harness is greater than 10, η = 1.75; when the diameters of each wire in the wire harness are unequal and the total number of wires in the wire harness is less than or equal to 10, η = 1.

70.

5. The method for calculating the outer diameter of automotive wiring harnesses according to claim 1, characterized in that, The non-circular packaging calculation method is adopted to calculate the initial bundle outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter. The specific formula is as follows: Where: D0 is the initial outer diameter of the wire harness; n is the total number of conductors in the wire harness; m is the total number of different wire diameter types in the wire harness; i is the serial number of the different wire diameter types in the wire harness; n i d represents the number of wires of type i with diameter in the wire harness; i Let be the maximum outer diameter of the wire of type i; η is a function related to the total number of wires in the bundle and the diameter of each wire in the bundle. When the diameters of all wires in the bundle are equal and the total number of wires in the bundle is greater than 10, η = 1.25; when the diameters of all wires in the bundle are equal and the total number of wires in the bundle is less than or equal to 10, η = 1.30; when the diameters of all wires in the bundle are not equal and the total number of wires in the bundle is greater than 10, η = 1.75; when the diameters of all wires in the bundle are not equal and the total number of wires in the bundle is less than or equal to 10, η = 1.

70.

6. The method for calculating the outer diameter of automotive wiring harnesses according to claim 2, characterized in that, When crimping points exist in a wire harness, the formula for calculating the total number of wires in the harness is: When there are no crimp points in the wire harness, the formula for calculating the total number of wires in the wire harness is: Where: n is the total number of wires in the wire harness; n i n' represents the number of wires of type i with diameter in the wire harness; i s represents the number of wires of the i-th wire diameter at the crimp point; i This represents the number of conductors of the i-th type diameter in the equivalent conductor.

7. A system for calculating the outer diameter of an automotive wiring harness, characterized in that, The automotive wiring harness outer diameter calculation system includes: an information acquisition unit for acquiring component pin information; the component pin information includes the wire diameter, wire type, and number of wires of each wire diameter in the wiring harness; and a maximum outer diameter determination unit for determining the maximum outer diameter of each wire based on its wire diameter and wire type, specifically including: determining whether there is a crimping point in the wiring harness to obtain a first determination result; if the first determination result is yes, then calculating the outer diameter of the crimped wire based on the form information of the crimping point, the maximum outer diameter of each wire, and the number of wires of each wire diameter, and using a non-circular packaging calculation method to calculate the initial wiring harness outer diameter based on the outer diameter of the crimped wire, the maximum outer diameter of each wire, and the number of wires of each wire diameter; the form information of the crimping point includes: the number of wires of each wire diameter at the crimping point, the number of wires of each wire diameter in the equivalent wire, the type of wiring harness protective material at the crimping point, and the thickness of the wiring harness protective material at the crimping point; the equivalent wire is defined by the side with the largest sum of wire diameters at the crimping point. The harness consists of all conductors; if the first judgment result is negative, then it is determined whether the diameters of the conductors in the harness are equal, and a second judgment result is obtained; if the second judgment result is positive, then the equal-circle packaging calculation method is used to calculate the initial harness outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter; if the second judgment result is negative, then the non-equal-circle packaging calculation method is used to calculate the initial harness outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter; the initial harness outer diameter calculation unit is used to calculate the initial harness outer diameter based on the maximum outer diameter of each conductor and the number of conductors of each diameter; the technical requirement determination unit is used to determine the outermost harness protection material and the outermost harness protection method; the harness protection material includes: tape and tubular material; the harness protection method includes: full wrap, spot wrap and flower wrap; the final harness outer diameter calculation unit is used to calculate the final harness outer diameter based on the outermost harness protection material, the outermost harness protection method and the initial harness outer diameter.

8. An electronic device, characterized in that, The device includes a memory and a processor, the memory being used to store a computer program, and the processor running the computer program to cause the electronic device to perform the method for calculating the outer diameter of an automotive wiring harness as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, It stores a computer program that, when executed by a processor, implements the method for calculating the outer diameter of an automotive wiring harness as described in any one of claims 1 to 6.

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