Wiring harness design in CATIA V5 - 3D modeling Week 2 Challenge

Wiring Harness Design using catia V5

Objectives

Download the required parts and defining the parts electrically and further creating a catalogue for the components using CatiaV5.

Theory

Wiring Harness

Wiring harness is the combination of electrical and mechanical CAD to connect all the electrical parts in the automotive at the optimum level.

BASICS OF ELECTRICAL DISTRIBUTION SYSTEM (EDS) AND WIRING HARNESS

1) Electrical Distribution System: It runs from front end to rear end of the vehicle. It involves physical and logical architecture schematic development, power distribution, wiring harness design, wiring harness component design of given electrical system. It ensures the physical location of all electrical components placed in the vehicle. It provides the logical connectivity between electrical components. It has electrical controller unit for different sections like Airbag ECU, ABS ECU, Engine (ECU).

2) E&E Architecture: It is the high-level logical connectivity diagram. It represents all the systems, sub-systems and logical connections between them. It shows the Control Area Network (CAN) between different electronic components.

3) Logical schematics: Detailed design of E&E architecture. It shows the logical connectivity between different components and controls of given systema and subsystem. It does not define any other parameter except electrical connectivity.

4) Electrical schematics: Detailed design of logical schematics, pin to pin connectivity, properties, fusing distribution, grounding distribution, interconnects, wire properties (wire gauge, color, type), circuit properties (circuit number, connector designation number, control device number), specification of components, end results of electrical core design of system and primary input for harness design.

5) Wiring harness topology: Strategy to split the harness between different pieces to achieve the best manufacturability, serviceability and cost-effective design.

6) Wiring harness routing: It provides the desired path of wiring harness into given vehicle environment by applying set of design rules and industry best practices.

7) Wiring harness packaging: Fixing/mounting strategy of wiring harness routing to ensure the safe, reliable and durability of wiring harness by applying set of design rules and industry best practices.

Connector Modelling

We have to download the file from te.com and open it on Catia V5 software. we have to create a axis system and bundle point in the part work bench and then we have to define it electricaly in the eletcrical part work bench. The connector connecting point and bundle connecting point have to be defined.

We have to download the file from te.com and open it on Catia V5 software. we have to create a axis system and bundle point and cavity axis in the part work bench and then we have to define it electricaly in the eletcrical part work bench. The connector connecting point and bundle connecting point also the cavity connecting point have to be defined.

We have to download the file from te.com and open it on Catia V5 software. we have to create a axis system for cavity in the part work bench and then we have to define it electricaly in the eletcrical part work bench. The ccavity connecting point also the cavity connecting point have to be defined.

The electrically defined parts are assembeled in the electrical assembly work bench.

Result

Downloaded the required parts and defined the parts electrically and further created a catalogue for the components using CatiaV5.