Project 2

CAR BACK DOOR WIRING HARNESS DESIGN- PROJECT 2

AIM

To route the Wiring harness on given car body back door and prepare flatten view drawing in CATIA V5.

INTRODUCTION

A wire harness, also commonly referred to as a wiring harness, is an exterior sheath used to cover some types of electronic wires. Generally, wiring harnesses are made of thermoplastic or thermoset materials that can help protect the cables from the environment.

Automobiles today come with some great features. Their design, though, calls for deft wiring considerations. An automotive wiring harness is an assembly of wires, connectors, and other electrical parts. You use it in a vehicle for the transmission of signals.

Design of Wire Harness

A wire harness is a system of insulated conducting wires bound together with insulating materials, used in the electrical system of a motor vehicle, complex machine or aircraft. Wire harness engineering is the development process of an electrical foundation for the safe and reliable distribution of power throughout a system. It forms the foundation of reliable, cost-effective and successful product design and manufacturing.

The design, engineering and manufacture of wiring harnesses is complicated by shorter program launch cycles and increasing price pressure, coupled with increasing product and configuration complexity. Harness design software helps many companies address wire harness engineering challenges. Powerful design automation capabilities, coupled with model-based wiring harness engineering flow, help harness manufacturers cut costs, improve product quality and boost efficiency.Wire harness engineering faces shorter program launch cycles and increasing price pressure, coupled with increasing product and configuration complexity

Door Wiring Harness

In the case of car doors, as the door of the automobiles opens and closes, the wires bend. If you use the car every day, the door will open and close many times. In case of Back door, the trunk could be open and close many times in daily life. Backdoor wiring harness mainly introduced to connect the brake lights, number plate lights, rear wiper motor, defogger connections. The harness routing should be maintained properly with all the supporting components like clips, clamps with proper protective covers, rubber grommets.

OBJECTIVE

• Define all the mechanical connectors electrically and save it in the Catalogue.
• Place required Connecters on the Back door CAD data.
• Place Fir Tree clips at the required position by following the packaging rules.
• Create the Wiring Harness Routing with all the electrically defined connectors and mounting equipments.
• Create branching points at required locations to create sub branches and connect to various connectors in the geometrical bundle.
• Apply Protection coverings as required.
• Create Wiring harness flattening for the final geometrical bundle.
• Using the drafting workbench, create a drawing sheet with the flattened wiring harness.

DESIGN METHODOLOGY