Authors: Christoph Schmutzler; Andreas Krüger; Fred Schuster; Martin Simons
Addresses: Daimler AG, HPC: 050/G007, 71059 Sindelfingen, Germany. ' Daimler AG, HPC: 050/G007, 71059 Sindelfingen, Germany. ' Daimler AG, HPC: 050/G007, 71059 Sindelfingen, Germany. ' Daimler AG, HPC: 050/G007, 71059 Sindelfingen, Germany
Abstract: Rising fuel prices, challenging emission standards and the introduction of electric powertrains lead car manufacturers to explore every possible way to design energy efficient vehicles. Apart from increasing powertrain efficiency, e.g., by downsizing and optimising mechanical components as well as primary aggregates, the development of energy efficient Electric/Electronic-architectures will also contribute towards this goal. However, current architectures support none or only rudimentary power saving mechanisms. Furthermore, system design decisions made in the past such as broadly implementing a cyclic communication paradigm prevent the implementation of simple and straightforward power saving strategies. This paper surveys current in-vehicle Electric/Electronic-architectures and their energy efficiency and outlines new hardware and software approaches that allow for an easy and backwards compatible migration strategy.
Keywords: energy efficient communication protocols; automotive networks; embedded systems; controller area networks; CANs; FlexRay; energy efficiency; vehicle design; automobile industry.
International Journal of Communication Networks and Distributed Systems, 2012 Vol.9 No.3/4, pp.266 - 285
Received: 08 May 2021
Accepted: 12 May 2021
Published online: 17 Aug 2012 *