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Pedro H. A. de Oliveira
Graduate Program in Electrical Engineering, Federal University of Minas Gerais, Belo Horizonte
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Igor A. Pires
Department of Electronic Engineering, Federal University of Minas Gerais, Belo Horizonte
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Braz de J. C. Filho
Department of Electrical Engineering, Federal University of Minas Gerais, Belo Horizonte
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Anderson do Nascimento
CNH industrial
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Thales A. C. Maia
Department of Electrical Engineering, Federal University of Minas Gerais, Belo Horizonte
Keywords:
non-road mobile machinery (NRMM), backfill, series hybrid electric powertrain, backhoe loader, loading bucket, power sizing, traction motor, engine-generator set, electrical energy storage source
Abstract
The objective of this paper is to size the power required by the main powertrain components used to electrify a backhoe loader in order to meet the requirements demanded by an operating cycle called backfill. The backhoe loader is modelled based on the external forces acting on itself. The power sizing approach was inspired in a technique applicable to the on-road vehicle electrification. This technique was adapted to electrify a backhoe loader. The backhoe loader modelling and the power sizing were implemented in a script developed in MATLAB. The simulation results showed backhoe loader is not able to recover braking kinetic energy along the backfill. The results also showed that power minimization of the engine-generator set maximizes the capacities of power and energy of the electrical energy storage source.
