Novel ringing suppression circuit to increase the number of connectable ECUs in a linear passive star CAN

Author

Mori, Hiroyuki ; Suzuki, Youichiro ; Maeda, Noboru ; Obata, Hiroyuki ; Kishigami, Tomohisa

Author_Institution

NIPPON SOKEN Inc., Nishio, Japan

fYear

2012

fDate

17-21 Sept. 2012

Firstpage

1

Lastpage

6

Abstract

As the number of ECUs in an automobile steadily increases, the demand for ever more ECUs connected to the Controller Area Network (CAN) also rises significantly. However, the number of connectable ECUs in a linear passive star CAN is restricted because of the ringing phenomenon in communication signals. In this paper, we propose a ringing suppression circuit activated on high level ringing voltages. As a result, we can expand the number of connectable ECUs in a linear passive star, which enables construction of low-cost communication networks by reducing the number of gateways required.

Keywords

automotive electronics; controller area networks; field buses; internetworking; automobile; communication signals; connectable ECU; controller area network; electronic control units; gateways; high level ringing voltages; linear passive star CAN; low-cost communication networks; ringing phenomenon; ringing suppression circuit; Delay; Impedance; Junctions; Logic gates; Prototypes; Reflection; Transceivers; CAN; in-vehicle network; ringing suppression; signal integrity;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC EUROPE), 2012 International Symposium on

Conference_Location

Rome

ISSN

2325-0356

Print_ISBN

978-1-4673-0718-5

Type

conf

DOI

10.1109/EMCEurope.2012.6396876

Filename

6396876