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A worldwide decrease of legal limits for CO2 emissions and fuel economy led to stronger efforts for achieving the required reductions. The task is to evaluate technologies for CO2 reduction and to define a combination of such measures to ensure the targets. The challenge therefor is to find the optimal combination with respect to minimal costs. Individual vehicles as well as the whole fleet have to be considered in the cost analysis - which raises the complexity. Hereby, the focus of this work is the consideration and improvement of a new model series against the background of a fleet and the selection of measures. The ratio between the costs and the effect of the measures can be different for the each vehicle configuration. Also, the determination of targets depends whether a fleet or an individual vehicle is selected and has impact on the selection and optimization process of those measures.

One scope of work for energy management of electrified vehicles is the powertrain dimensioning in early development phases. In current development processes only dynamic short term or stationary long term maneuvers for powertrain dimensioning are considered. Therefore, requirements can be already defined for peak and continuous operation for electric motors and the traction battery, but not for the transition in-between. Based on analysis of benchmark vehicles and the driving of more realistic load cases, it is noticeable that also dynamic long term maneuvers become interesting for the end customer. The derating behavior of the electric powertrain components must be considered, especially for such maneuvers. This means in detail the transition between peak and continuous operation. Therefore, this aspect requires a simulation model considering dynamic derating effects for early development phases.