Hybrid propulsion systems allow for a reduction of fuel consumption and pollutant emissions of future off-highway applications. A challenging aspect of a hybridization is the larger number of system components that further increases both the complexity and the diversification of such systems. Hence, beside a standardization on the hardware side for off-highway systems, a high flexibility and mo...

Decision-making is a crucial and difficult step in the design process of complex systems such as hybrid powertrain. Finding an optimal solution requires system feedback. This can be, depending on granularity models at component level, highly time-consuming. even more true when system’s performance determined by its control. In fact, various possibilities be selected to deliver required torque w...

With the development of connected and automated vehicles, eco-driving control is reckoned to generate unprecedented potential on energy-saving in electrified powertrain. In this paper, a data-driven based strategy with efficient computation capacity proposed for plug-in hybrid electric vehicles achieve approximate optimal energy economy. An hierarchical scheme designed mitigate massive computat...

This paper uses dynamic programming to compare the optimal fuel and electricity costs associated with two supervisory control strategies from the plug-in hybrid electric vehicle (PHEV) literature. One strategy blends fuel and electricity for propulsion throughout the useful range of battery state of charge (SOC), while the second strategy switches from all-electric to blended operation at a pre...

An important benefit in adopting multi-mode hybrid powertrains is the possibility of downsizing the electric motor/generator (M/G) units. This paper discusses design optimization of M/G full-load operation envelopes. A three-dimensional operation space analysis is introduced and the full-load speed-torque envelopes of M/G units appear as constraints in the powertrain operation space. The analys...

This publication presents a new generation measuring system, designed and constructed for the testing of pneumatic powertrains, at Faculty Engineering University Debrecen, as well its design assembly process. It also describes test measurements applying system together with their results. During measurements, pressure in cylinder other parts were measured, kinematic functions piston, during ope...