1988-09-01

Investigations Into The Electromagnetic Compatibility And Performance Evaluation Of Databus Systems In Motor Vehicles 885083

Databus systems in motor vehicles allow communication between electronic control devices. Among the factors of particular interest for the development of a bus system are electromagnetic compatibility (EMC) and, especially for realtime applications, performance. This paper deals with EMC measurements conducted on a bus system for multiplex applications which is currently undergoing testing at Daimler-Benz. The second half of the paper presents a comparison of performance of ABUS and CAN data-bus protocols, these being well suited for controlling time-critical operations, in respect of data rate, bus access time, bit error probability and message priority.

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