Abstract

Many studies on the automotive engine as a control system have been investigated in order to meet emission regulations and to improve the fuel economy. Sophisticated control systems which, up to the introduction of the microcomputer were a problem, are now easy to realize. In this paper, the fuel supply and ignition timing are considered as the principal control variables of the automotive engine. The main feature of a carburetor is characterized by its Venturi geometry and fuel nozzle arrangement. The ignition timing is controlled by a distributor which is composed by a spring and a centrifugal governor.

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