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The performance and property of brush-less car alternator with gap flux controlled by DC stator coil is discussed in this paper. This type of alternator is more dependable, has reduced weight and dimension of rotor compared with traditional alternators. Reduction of the rotor weight is obtained by elimination of rotor coil and reduction of steel core weight. The stator steel core is laminated and exactly like ordinary stator core, but coils are different. There are three phase stator coils and coil for DC excitation. Salient multi poles rotor is laminated and does not contain any coils This paper presents theoretical discussion of principle of operation of this type of machine. Traditional alternator was modified for physical modeling. Results of this modeling are presented as well.

This paper is a descriptive bibliography of recent literature in the areas of modeling and control of spark ignition, 4-stroke engine. The paper provides a synopsis of the state of the art in these areas; additionally, the summary offers a starting point for those conducting research in these areas. The emphasis of the discussions is on the basic ideas used in the development of the models and the control techniques discussed in the research literature. Additional references are also provided as an aid to researchers in the field.