Browse Publications Technical Papers 2004-01-3056

An Integrated Approach for Energy Management Analysis of Conventional and Innovative Vehicle: Drivetrain 3.0 2004-01-3056

The increase of the electrical power required by current vehicles suggests the need to evaluate its impact on fuel consumption, emissions and performances.
Moreover, due to the growing amount of cars equipped with Air Conditioning System, a deep knowledge on how these additional loads influence vehicle performances is required.
Often, the mechanical power requested by electrical and AC systems is comparable to the mechanical power necessary to move the vehicle (or sometimes even higher) and this happens mainly during urban driving cycles.
Drivetrain 3.0 is an integrated simulation model for vehicle energetic evaluation and management; fuel consumption and performances on a generic speed vs time driving cycle are dynamically evaluated as a function of electrical power loads and their possible management strategies.
Other additional mechanical loads (i.e. climate compressor) and the related transmission efficiency could also be taken into account.
Furthermore, Drivetrain 3.0 can calculate the fuel consumption as a function of the state of charge (SOC) of the battery and the engine idle rpm boost (depending on the energy management strategies), in order to guarantee the electrical balance.
The simulation model enables the evaluation of the effects of Start&Stop strategy on fuel consumption, taking into account the electrical power consumption when the engine is switched off.


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