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In the last decades the development of Diesel engines has made substantial progress. New, powerful and scalable injection systems have been introduced. In consequence Diesel systems are continuously gaining market share in many places of the world. Advanced direct injection engines with systems like the electronically controlled distributer pump, the unit injection system and of course the common rail system are replacing the chamber engines in all automotive applications. This is all unthinkable without the electronic management of these injection systems by means of Electronic Diesel Control units (EDC). The following presentation describes the status and some future trend of technology of EDCs with particular emphasis on functional and on software development. It also outlines the challenge of global automotive industry that requires global development and application services from its tier 1 suppliers.