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

Typical design flow of EDS system

Logical Architecture ====> Electrical Schematics ====== >

Harness Drawing

Physical Architecture ======> Harness Routing =======>

Wiring Harness Design Process

• Input collection - data analysis is done in catia v5

• Component identification or searching

1. Harness topology or idea to form harness - process of splitting harness in different parts for easy manufacturing and serviceability .
2. Review - show to seniors , manufacturing and service teams and get approved.
3. Concept routing and packaging & proposal - wiring harness path definition , mounting proposal , channel proposal , connector parking etc .
4. Review - review with body , engine , plastic body, powertrain design team , manufacturing and service teams also with quality teams for best output
5. Routing finalisation - detailing of finalised concept.
6. Flattening and wire harness drawing - flattening means making the wire harness straight and putting on harness test board and then making the drawing of it.

• Flow chart for wire harness assembly or structure

Create or Download connector 3d data

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Create geometrical parameters

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Define part as connector

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Define bundle connection point

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Define connector connection point

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Define cavity connection point

• Explaining the flow chart with steps.

• Download or create connector 3d data: create the connector required on catia or any cad software or download it from website eg - tyco connectors, mouser, terminal technologies etc download the step file => open catia part design workbench => import the connector

• Create geometrical parameters : set up a point on the connector surface i.e. open point => select in between => select two points diagonally and select middle point to get a point exactly on centre. => now open axis system =>let Y axis be facing towards => X towards locking system => Z axis towards the top.

• Define connector => open electrical part design => click on define connector .

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