Characteristics of AC grounding in an automotive ECU

Author

Rakouth, Heritianarisoa ; Comstock, Luke ; Cammin, Clane

Author_Institution

Delphi Automotive Syst., Saginaw Steering Syst., MI, USA

Volume

2

fYear

2001

fDate

2001

Firstpage

1233

Abstract

This paper investigates alternating current (AC) grounding as a cost-effective technique for reducing radiated emissions from an automotive electronic component or system. AC grounding is a technique that provides an electronic control unit (ECU) in the vehicle with a good ground path for radio frequencies (RF), while preventing the power current from returning through the chassis. This paper provides a technique for determining the optimum configuration of an AC ground network, including component values. The experience here is focused around the analysis and reduction of electromagnetic interference (EMI) created by a pulse-width modulation (PWM) operated automotive power device

Keywords

automotive electronics; earthing; electromagnetic interference; interference suppression; AC grounding; EMI reduction; PWM power device; automotive electronic control units; chassis; component values; coupling medium; electromagnetic interference reduction; noise propagation; radiated emissions reduction; radio frequencies ground path; Automotive electronics; Automotive engineering; Electromagnetic analysis; Electromagnetic interference; Grounding; Land vehicles; Pulse width modulation; Radio control; Radio frequency; Road vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-6569-0

Type

conf

DOI

10.1109/ISEMC.2001.950612

Filename

950612