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Abstract



Start Modelling for heavy trucks


Modern heavy trucks tend to get more and more equipment demanding electric power. As a result, the electric power left for starting become more and more limited. If a complete view of the entire starting system - battery, starter and the combustion engine - is used, the total system can be investigated and optimized. This thesis is a study of the starting system and its components. Theories for each component are presented and models are derived for a complete starting system. Focus lies on the battery and starter motor. The purpose of the modelling work is to gain knowledge of the starting system. Some results can also be obtained from the simulations - it is very important to keep the electrical resistance as low as possible and the differences between battery types are surprisingly big.

Fredrik Mellblom

2004

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Last updated: 2019-08-05