Compared with electromagnetic starting motor,permanent magnet starting has the characteristics of small volume,low weight,high efficiency and big ratio efficien-cy to weight.
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- 永磁启动机与电励磁起动机相比,具有体积小、重量轻、效率高、比功大的特点,所以永磁起动机已成为汽车起动机的发展方向。