Interest in electric hybridization of non-road mobile machinery is increasing during the last few years, because of tightening emission regulations and standards. Hybridization of non-road working machine can be implemented in many different configuration, parallel hybrid or series hybrid, only one drive motor or all-wheel drive.

Target of modelling of a hybrid powertrain is comparing non-road mobile machinery powertrain concepts with quick modelling methods, improving the performance of hybrid powertrain and optimizing battery use and lifetime with system-level control methods.

Fuel/energy consumption of different concepts, overall efficiency of systems and loss of different components can be compared using model of hybrid powertrain and the best concept option for application can be chosen. The impact of component sizing on energy consumption and performance can be also examined by using a model.

Text by Dr. Paula Immonen, LUT University