Browse Publications Technical Papers 2004-01-1598
2004-03-08

Analysis of an Automotive Ground System Based on a Ground Model and Current Distribution in it 2004-01-1598

Ground systems in automobiles become more important as more electric devices are installed and the amount of currents flowing increases. The performance of the devices depends on the ground voltage, which is generated between ground points by I-R voltage drops. Therefore, low ground voltages are required for the reduction of the unnecessary power dissipation as well as the reliable performance of the devices.
In this paper, we propose an automotive ground system model to analyze ground structure and reveal the main cause of ground voltages. The equivalent resistor network model is presented to describe the relationship between ground points. Then, we validate the model by comparing the simulation results with the measurements in a real car.
The presented analysis can provide guidance on designing a reliable ground system such as how to reduce the ground voltages for the proper operation of devices.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Simulation Tool For Predicting Warranty and Total Ownership Cost

2002-01-0338

View Details

TECHNICAL PAPER

Multiple Environment Accelerated Reliability Test Development

1999-01-3387

View Details

TECHNICAL PAPER

Tools and Methods for Product Sound Design of Vehicles

2005-01-2513

View Details

X