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Dr. JEAN-CLAUDE MIPO, R&D, VALEO EEM

Abstract

During this last decade, the engine audible noise was drastically reduced, especially at　low speed. In order to improve the comfort of driver, car makers imposed new　requirements concerning theaudible noise of all equipments in the car.　We have to reduce the magnetic audible noise of alternators, which are claws pole　machines. The aim of our study is to find the parameters which can influence on the　noise. In this paper, we focused on the claws shape . Using a DOE (Design Of　experiment) method, we optimized the claws shape in order to minimize the noise.