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Prospects for the development of automotive networks based on ethernet

Śmieja M., Rapiński J.

Journal of KONES

2011

Vol. 18, No. 3

445-452

The increasing complexity of automotive electronic systems is linked to the continuous development of new or adaptation of those already proven has been efficient in other fields of information management. Contemporary vehicles are characterized by great diversity of data exchange used in them ways. Communication protocols proposed and used by car manufacturers, such as the K-line, Can, Lin, and FlexRay have been changing their position as a part of formally adopted group of standards. The article is an attempt to outline the evolution and prospects of implementation of automotive networks, taking into account current technological capabilities as well as the requirements and expectations of potential users. The advantages of Ethernet are proved by the fact, that many of the leading automation companies which developed and popularized the standards of their own network such as Profibus (Siemens), Cc-link (Mitsubishi), Modbus (Modicon/Shneider) for years, move to Ethernet protocols, which is solutions based on the OSI layer 2 -respectively Profinet, CC-Link IE, Modbus TCP. It is a significant difference between industrial and automotive network applications is the difference in desired behaviour of controlled object. In most of the cases in the industrial systems, a proper reaction in critical situations should be to stop the activity of particular elements of controlled plant.