Trends in Electronic Engine Control and Development of Optimum Microcomputers 880136

Electronic fuel injection systems for automotive engine control are now capable of greater control precision and increased function through the progress in microcomputer performance and cost efficiency. The dependence of engine control systems on microcomputer performance is expected to remain significant for the future as well, in such areas as improved learning control techniques and new control theories.
This paper first refers to sequential fuel injection systems under cylinder-by-cylinder control and adaptive learning control techniques for which a new control theory has been employed, and then presents a new microcomputer integrated with a multifunctional timer module for extremely high real-time control capabilities by means of its 16-bit core CPU. A single chip ASIC memory unit integrated with EPROM and RAM devices serves as a peripheral LSI for the microcomputer


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