3D Wire Harness Routing for Moving Bodies
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Solution Overview
Problem
The design of wire harnesses for moving bodies, such as vehicles, is complicated and time-consuming, especially when relying on measurements of actual objects, requiring skilled personnel and lengthy processes to achieve accurate wiring paths.
Innovation Solution
A designing support method and system that creates wiring path information based on 3D design data of moving bodies, allowing for the bundling of electrical wires to define the wire harness, facilitating the design process by eliminating the need for actual object measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If measurement-based design method is used, then wiring path accuracy is improved, but design time and complexity increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-defining standard wiring paths and connection points in the 3D CAD data before actual wire harness design. This allows the design system to automatically reference these pre-established paths rather than measuring and defining them from scratch during the design process, significantly reducing design time while maintaining accuracy.
Solution Approach 2:
The patent uses copying by creating virtual wire harness models that replicate the physical wiring paths in the 3D CAD environment. These virtual models are copied from standard templates and configurations, allowing designers to work with accurate representations without needing to physically measure and reconstruct each wiring path, thus reducing both time and complexity.
2Manufacturing precision
If measurement-based design method is used, then wiring path accuracy is improved, but skill requirement and operational complexity increase
Solution Approach 1:
The patent applies self-service by enabling the design system to automatically generate wiring path information by referencing the 3D CAD data and pre-defined standards. The system performs measurements and path calculations autonomously without requiring manual intervention or specialized measurement skills from operators, thereby reducing operational complexity while maintaining high accuracy.
Solution Approach 2:
The patent replaces manual measurement and design operations with automated computer-based systems. Instead of using physical measurement tools and manual drafting, the system uses 3D CAD software to automatically calculate wiring paths, determine connection points, and generate design documentation, eliminating the need for skilled manual measurement operations.
3Manufacturing precision
If actual object measurement is required, then design accuracy is improved, but design process cannot begin until moving body is completed
Solution Approach 1:
The patent applies preliminary action by incorporating wiring path definitions into the 3D CAD data during the vehicle design phase, before the actual moving body is manufactured. This allows wire harness design to proceed in parallel with vehicle development rather than waiting for completion, significantly improving productivity while maintaining design accuracy through the use of accurate 3D models.
Data Source
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AI summary
Provided is a designing support method. The method comprises a routing step (S202) of creating, based on three-dimensional (3D) design data of a moving body, wiring path information, which is path information of a plurality of electrical wires (501) arranged with respect to the 3D design data; and a harness defining step (S203) of bundling a predetermined number of the electrical wires (501) selected according to a predetermined rule from the wiring path information to define the wire harness.