A Powertrain Model for Energy Management Systems evaluation based on Power Flux for Heavy-Duty Series Hybrid Vehicles

This paper aims to introduce a simulation model designed to enable the assessment of various energy management techniques based on power flows for non-road series hybrid electric vehicles (NRSHEV). It allows the energy evaluation without defining vehicle longitudinal dynamics and treating it simply as a load. This method permits the exploration of various hybridization options without predetermining the positioning of components or mechanical structures. This is particularly beneficial for NRSHEVs since these vehicles have defined loads but offer diverse equipment options for their operations. The equipment’s specifications can be made after the system’s energy efficiency is demonstrated. Series topology poses different challenges, such as motors and converters’ quantities and sizes. Despite them, in agricultural contexts focusing on self-propelled implements, the space is limited due to essential tools, complicating the use of mechanical coupling and power transmission structures, which justifies the adopted choice. The simulations conducted demonstrate that the proposed model streamlines the evaluation of power flow between sources and loads, offering insights into the performance of various energy management systems. Moreover, it facilitates the observation and analysis of the electrical dynamics of the model’s components, further enhancing its utility and relevance.