Project 2
AIM: To route the wiring harness on the given tailgate inner panel and prepare the flatten view in Catia V5.
Given: Car Tailgate inner panel


DESIGN CRITERIA AND PACKAGING ASSUMPTIONS:
- Wiring harness routing shall provide ease in manufacturing, accessibility, easy removal, and easy maintenance ofattached equipment and wiring harness.
- Routing through small structural holes and openings shall be avoided, minimize chaffing and handling of the wiring harness during installation.
- Avoid the harness routing and clipping in the Blind zone of the Operator during harness assembly or in service.
- Routing shall offer protection against possible damage through common misuses such as being handhold and temporary support for test equipment.
- Provide additional slack to the harness according to the surroundings and harness bending requirements.
- Ensure the routing meets the clearance requirements with different surrounding parts.
- Avoid routing over the bolts, near to the bolted joints. It may damage the harness or puncture the harness. Keep harness away from panel mounting screws.
- Avoid harness routing near sharp edges, if not possible provide protection to the harness.
- The maximum distance between two clips on a straight branch is 200mm.
- Provide Clips and clamps if the harness is going to bend at multiple locations.
- The use of too many sheet-metal brackets should be avoided.
- The branch length should be more than 50 mm.
- Min distance between clip and branching point to be 25 mm.
- Min distance between two branch breakouts should be 50 mm.
Routing the Wiring Harness:
- First, we have to consider the components we need for the routing. Here we are only considering the taillights and the number plate lights.
- Here we are considering 2 different types of connectors as follows
- We electrically define all the connectors and the fir tree clips.
Interconnection connector:

Light connector

- Clips used for routing the wiring harness
Fir tree clip

- Routing of the wiring harness for the tail lights

- Routing of wiring hareness for number plate

- Flattened wiring harness of the Tail lights

- Flattened wiring harness for the number plate

- Flattened wiring harness drawing for Tail lights

- Flattened wiring harness drawing for Number plate

Conclusion
The wiring harness has been designed for the given tailgate assembly and the number plate and the flattened view is drafted.