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.
Citation: Lee, D., Lim, H., Park, J., Ok, S. et al., "Analysis of an Automotive Ground System Based on a Ground Model and Current Distribution in it," SAE Technical Paper 2004-01-1598, 2004, https://doi.org/10.4271/2004-01-1598. Download Citation
Author(s):
Donghwan Lee, Hansang Lim, Jaehong Park, Soonseock Ok, Junwan Tak, Euibong Kim
Affiliated:
Seoul National University, Hyundai Motor Co.
Pages: 9
Event:
SAE 2004 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
In-Vehicle Networks and Software, Electrical Wiring Harnesses, and Electronics and Systems Reliability-SP-1852
Related Topics:
Design processes
Reliability
Logistics
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