Contactless CAN interface - a standard for aftermarket automotive

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Contactless CAN interface - a standard for aftermarket automotive

Berenger, J.Y.

The industry trend is to develop distributed architecture, using embedded networks like CAN bus technology to link all together more and more parts as electronic control units and functions. By this way, electronic devices can get access to a lot of information from the car and offer more powerful added value functionality's within always limited costs. Unfortunately, systems makers don't allow intrusive solutions for safety, reliability reasons and for maintaining integrity of their entire systems. So, at this moment, there is no reliable and no legal way to integrate consumer electronics devices without compromising the integrity of the vehicle's electronic system in an existing platform in aftermarket. NSI offers one way to do it thanks to it's CAN contactless technology. Such interface acts as a 100% spy and neutral solution. It extracts data's from the embedded networks (such CAN bus or other) without any electrical contact to networks medium. In this way, it's compliant to system maker's requirements, warranty the original integrity of their electronic architecture. There are plenty of applications for such contactess interfacing technology: fleet management system, CAN spy analyser and tools, insurance spy equipments and other after market equipments. This paper presents the main characteristics of an innovative CAN contactless solution: technical presentation of the CAN contactless interface, reliability of the solution and examples of application.