Method of protecting motor vehicle internal combustion engine starter-alternator group from over speeding involves using preset threshold value to control disconnection if overspeeding occurs

摘要

The method of protecting a motor vehicle internal combustion engine starter-alternator group from over speeding involves beginning a starting sequence for the engine and detecting the engine speed. This speed is compared with a preset threshold starting speed and the starter-alternator group is disconnected if the speed exceeds the threshold value.