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An analysis method to study the potentials of recovering the brake energy from Volvo articulated haulers has been developed. The study has been carried out with purpose to find out how and where possible hybrid solutions can be used. The method is based on the mapping of the peak brake power, brake energy and engine energy. This method was developed using adequate signals collected on haulers at three different customer sites. A conceptual study was also carried out concerning the brake energy to understand the actual amount of brake energy that may be stored in an Energy storage system (ESS). The results indicate that the analysis method developed can map the brake energy generated and also provide an overview of the actual amount of brake energy that can be accumulated in an ESS. Hence, the method may also providing guidelines regarding the selection of an ESS for a particular work site.

A way of modeling vehicle loads for fatigue assessment purposes is discussed. The idea behind the method is that most of the variability in terms of loads is explained by which road the vehicle is driven on. Loads due to curve driving are used as an example. The loads are modeled using a parametric model. Analysis of Variance techniques are used to study the variation and to see whether the classification is sufficiently accurate. Field measurement data from three markets is used. A discussion around design of experiments is given.