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Due to the changes in the environment surrounding the industrial engine market, such as strengthening of exhaust emissions regulations of diesel engines and production increase of shale gas, the needs of the gasoline, LPG or natural gas fueled engines are growing. In the North American market, exhaust emissions regulations of industrial SI engines are getting strict. On the other hand, European market and developing countrys' market have no exhaust emissions regulations for SI engines. Therefore it is necessary to develop the engines which meet the needs of each region. Based on the existing diesel engine, we developed the two types of SI engine WG2503 (displacement 2.491L) simultaneously. In this paper, approaches and technologies used for the development of these models are explained. To secure the high torque characteristics, its combustion chamber configuration was optimized. Ignition timing was optimized according to the fuel types.

A new display technology is presented in order to improve the value of automotive systems which use displays; such as navigation systems and future communication systems. Displays are becoming crucial to making the systems complete and user-friendly. A full-color antiferroelectric liquid crystal display has been developed featuring excellent display image quality and wide viewing angle characteristics. The antiferroelectric liquid crystal display has a completely different operation principle from any other LCD and makes it possible to realize image quality which is comparable to TFT-LCDs with a simple matrix structure.