Systematic approach in the hybridization of a hydraulic skid loader

Bertini, A.; Ceraolo, Massimo; Lutzemberger, Giovanni

doi:10.1016/j.autcon.2015.07.013

Cited by 24 publications

(16 citation statements)

References 16 publications

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“…The implemented strategy is of rule-based type, already considered by the authors in the field of working machines [21,22], and in other different vehicular applications [29][30][31][32]. According to this strategy, the useful power P U (t) can be seen as constituted by an average value and ripple.…”

Section: Energy Management Strategymentioning

confidence: 99%

Hybridisation of forklift trucks

Ceraolo

Lutzemberger

Scarpelli

et al. 2020

IET Electrical Systems in Transportation

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In the past years, forklift manufacturers have started to hybridise their products under the worldwide interest toward electrification. This is generally made starting from existing standard products, and converting them into hybrid versions, rather than start from scratch and designing fully new vehicles. This approach involves several gaps from the inaccurate evaluation of the powertrain architecture and relative energy management strategy, up to a rough sizing of components. Therefore, this study suggests a structured methodology to follow, aimed to properly design hybrid forklift trucks. The first step is the analysis of the conventional working machine to hybridise, identifying one set of duty cycles. Then, the design of the new powertrain architecture, with a proper energy management strategy, and the definition of a numerical simulation model realised through a multiphysics object-oriented software package, to properly size the new powertrain components, and to verify energy and power flows. Finally, it is also presented a brief-cost-benefit analysis, as last verification of the proposed methodology, to verify the cost-effectiveness to bring the new products to the market. Results have shown the general feasibility of the operation since the significant reduction in fuel consumption is combined with sustainable costs of the new electrified components.

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Section: Energy Management Strategymentioning

confidence: 99%

Hybridisation of forklift trucks

Ceraolo

Lutzemberger

Scarpelli

et al. 2020

IET Electrical Systems in Transportation

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“…The adopted energy management strategy is described in detail in [39,40], and applied by the authors on other existing applications [41][42][43][44]. Here it will be just recalled for clarity that energy balance between energy sources and loads must be observed, according to the following equation:…”

Section: Energy Management Strategymentioning

confidence: 99%

Modelling and design of improved powertrain solutions for electric and hybrid buses

Ceraolo

Giglioli

Lutzemberger

et al. 2017

IET Electrical Systems in Transportation

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There is a growing interest worldwide in reducing pollution and CO 2 emissions from transportation field. Indeed, in recent years bus manufacturers have developed hybrid and electric versions of their products. In this regard, this study shows through a structured methodology how to model and design powertrains for pure electric and series-hybrid buses. First step is aimed to define a simulation model of the existing bus, experimentally validated, and then modelling and design of pure electric and hybrid powertrains. After analysing main drawbacks of pure electric vehicles fed by large and heavy batteries, and hybrid vehicles fed by diesel fuel, alternative solutions have been considered. In particular, different fuels, i.e. compressed natural or liquefied natural gas, have been analysed for the hybrid version, while a pure electric vehicle equipped with a reduced storage system able to be quickly recharged at bus stops has been introduced. In all the considered cases, particular attention has concerned the sizing of the electrochemical storage.

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“…The growing concerns for environmental problems drive the development of more fuel efficient and environmentally friendly earth moving machines [1]. Therefore, their design and optimization address the different sub-systems and components of the working machines in order to enhance the efficiency of the entire system [2,3].…”

Section: Introductionmentioning

confidence: 99%

An Innovative Approach to Kinematic Analysis of Multibody Hydraulic Actuation Systems

Francia¹,

Milani²,

Montorsi³

2016

SAE Int. J. Commer. Veh.

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The paper focuses on the development of an innovative methodology for the direct measurement of the main kinematic variables in multi-body hydraulic actuation systems.\ud The analysis investigates how the motion capture technique has been applied to the experimental determination of position, velocity and acceleration of hydraulically controlled actuation systems for off-highway machineries.\ud A number of earth-moving machines has been taken into account, in particular a mini-excavator articulated harm has been equipped with both a standard mechanical system for position and acceleration measurement (including different accelerometers, linear and angular transducers), and a set of IR markers for motion capture application.\ud First, the hydraulically controlled boom-arm-bucket system has been operated using a control routine reproducing a reference operating condition, in order to define the accuracy of the motion capture system in detecting the kinematic quantities’ variations.\ud At the same time, the hydraulic variables have been also acquired to monitor the behavior during the machine working routine. Thus, the results obtained by the different experimental techniques have been compared, in order to state the reliability of the motion capture technique to predict the fast dynamics of pressure variations through the accurate measurement of mechanical devices’ oscillation.\ud Finally, the paper reports the main results obtained using the data from the motion capture characterization of the dynamic performance of the mini-excavator, with particular attention devoted to the dynamic analysis through lumped and distributed parameter numerical co-simulation

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Systematic approach in the hybridization of a hydraulic skid loader

Cited by 24 publications

References 16 publications

Hybridisation of forklift trucks

Hybridisation of forklift trucks

Modelling and design of improved powertrain solutions for electric and hybrid buses

An Innovative Approach to Kinematic Analysis of Multibody Hydraulic Actuation Systems

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