/ 10 Fuel Consumption and Emissions 1997 Ma rtin Barte nste in, Günte r Hohe nbe rg, Hiromits u Ando, Fuel Consumption vs. Emissions. Gasoline and Diesel Direct Injection – The Best Way towards the Future? The 9th “Engine & Environment” conference in September 1997 revolved around direct injection for gasoline and diesel engines. “The combustion engine with direct injection is the decisive contribution to further, significant reduction of fuel consumption and traffic-related CO2 emissions. This development, to which AVL had contributed a vital input, was first applied in diesel engines for commercial vehicles and later also in passenger cars. Today, it has become an integral element of this segment. (...) The challenge we will have to meet with regard to low-consumption engine concepts lies in the compliance with future exhaust regulations”, summarized CEO Prof. Helmut List the challenge the engineers were facing in his introductory statement. “Diesel 2000 – Future trends and technologies for passenger car The exhibition offered plenty of opportunities for the conference participants to catch up on the latest technologies. diesel engines” was the title of Dr. Leopold Mikulic‘s presentation (Audi AG). He began by providing an overview of the history of diesel engine development at Audi, stressing the cooperation between Audi and AVL: “In the wake of the oil crisis in the early 1970s, the development of diesel engines for passenger cars was pursued much more extensively. Audi was among those to start developing such engines at around that time, concentrating on the direct-injection diesel engine. In 1989, Audi – with the support of AVL – launched its series production of the first turbocharged direct injection diesel as a five cylinder engine in the Audi 100. (...) Today, in 1997, the diesel engine with direct fuel injection is gradually making inroads into the deluxe segment, and the version used on the A8 meets the provisions of the EU II standard.” Dr. Mikulic closed his presentation with the following prognosis: “According to market forecasts, the diesel engine is said to capture an increasing share of the Western European market. The diesel engine with direct fuel injection could achieve a share as high as around 82 percent.” The “Potentials of third generation direct injection diesel engines for passenger cars” was the topic of the presentation by Dr. Roberto Imarisio and Dr. Rinaldo Rinolfi of the “Centro Ricerche Fiat”. Mitsubishi and Toyota presented gasoline direct injection engines. Dr. Hiromitsu Ando (Mitsubishi Motors Corporation) gave a presentation on “Mitsubishi GDI strategies for meeting European requirements“, and Hidetaka Nohira and Sumio Ito (Toyota Motor Corporation) presented the “Development of Toyota’s gasoline direct injection engine”. Dirk Andriese , Hidetaka Nohira, Günte r Fraidl
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