Hybridization of a Mobile Work Machine

Lehmuspelto, Teemu; Heiska, Matti; Leivo, Antti; Hentunen, Ari

doi:10.3390/wevj3040787

Cited by 7 publications

(6 citation statements)

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“…The added load of 1500kg corresponds to about 20 passengers. Part of this research was carried out in collaboration with the heavy hybrid development project called HybLab where an underground mining loader will be hybridized [6]. The loader will also have a combined battery-ultracapacitors energy storage system.…”

Section: A Backgroundmentioning

confidence: 99%

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Evaluation of the benefits of using dual-source energy storage in hybrid electric vehicles

Lajunen

2010

2010 IEEE Vehicle Power and Propulsion Conference

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Batteries are often used as energy storage in hybrid and electric vehicles. Despite of the development, technical characteristics of batteries are the most limiting factor for further increasing the energy conversion efficiency and pure electric operation of these vehicles. In this research, dual-source energy storage system, a battery pack and ultracapacitors, has been studied by simulation of hybrid city bus models. These two different types of energy storages have complementary characteristics therefore their combination provides both high energy and high power to weight ratio. Based on the simulation results, the benefits of using dual-source energy storage in hybrid city bus are evaluated demonstrating the advantages of the proposed energy storage system.

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Section: A Backgroundmentioning

confidence: 99%

“…Research has been made with rising activity in this area in recent years [1]- [6] and particularly for electric car applications [7]- [9]. For using of batteries as sole energy storage has been widely researched and there is a growing interest for development of more suitable batteries for hybrid vehicles [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the benefits of using dual-source energy storage in hybrid electric vehicles

Lajunen

2010

2010 IEEE Vehicle Power and Propulsion Conference

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“…Since there are no standard drive cycles for NRMM, a battery current profile is formed based on a measured power profile of an underground mining loader [10]. The mining loader has a hydrostatic driveline and a hydrostatic implement.…”

Section: Model Validationmentioning

confidence: 99%

Electrical battery model for dynamic simulations of hybrid electric vehicles

Hentunen

Lehmuspelto

Suomela

2011

2011 IEEE Vehicle Power and Propulsion Conference

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This paper presents an electrical battery model for lithium-ion (Li-ion) batteries that can be used for dynamic simulations of hybrid electric non-road mobile machinery (NRMM) and other vehicles. Although the model has been developed mainly for large vehicle batteries with Li-ion based chemistries, it can be used for other battery chemistries as well. The parameters can be extracted from simple measurement sets. The model calculates e.g. state-of-charge, terminal voltage, and open-circuit voltage. In this paper, the model structure and parameter extraction are explained in detail, and a model for a 25.9 V lithium-ion polymer battery module with 40 Ah cells is presented. Parameters are extracted from experimental measurements and the model is validated by making another experiment with more realistic hybrid electric NRMM current profile.

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“…The Case machine was presented more detailed in the EVS24 [1]. This chapter tells short version of the basics.…”

Section: Basic Datamentioning

confidence: 99%

“…Also the conventional loader would have potential to achieve higher speed with two speed gearbox instead one speed which it originally has. Based on calculations [1] and simulations [3] it seems that a higher speed actually improves efficiency. When cycle time is shorter then energy consumers which uses energy all the time has less time to consume energy so amount of energy used per cycle is then smaller.…”

Section: Expected Performancementioning

confidence: 99%

Modular driveline concept for underground mining loader

Lehmuspelto

Heiska

Leivo

2010

WEVJ

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This paper is part of an ongoing HybLab project funded by the Multidisciplinary Institute of Digitalization and Energy (MIDE) of Aalto University School of Science and Technology. First results and plans were presented in EVS24 [1]. The focus in this paper is to describe what kind requirements must be taken in to account when designing and dimensioning an electromechanical driveline for an underground mining loader. For case work machine is chosen 18t loader which was presented in EVS24 [1]. Also concept for a modular driveline concept will be presented. Basic idea in the concept is to avoid over dimensioning of electric drives by using electromechanically actuated mechanical links between the drive units. The concept gives possibility to optimize dimensioning of each electric drive in driveline so that the best efficiency is in use in normal mean power drive conditions. When one drive needs peak power then mechanical power can be driven via mechanical links from other drives. Disengageable mechanical links gives also possibility to avoid internal counter-torques in driveline caused by steering geometries and differences in tire diameters. The concept will be presented in the EVS25. The first results and experiences from the electromechanical driveline will be presented in EVS26. Copyright EVS25.

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Hybridization of a Mobile Work Machine

Cited by 7 publications

References 0 publications

Evaluation of the benefits of using dual-source energy storage in hybrid electric vehicles

Evaluation of the benefits of using dual-source energy storage in hybrid electric vehicles

Electrical battery model for dynamic simulations of hybrid electric vehicles

Modular driveline concept for underground mining loader

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