Searched for: subject%3A%22PT%255C%2B%255C-%255C%2BPower%255C%2BTrains%22
(1 - 20 of 98)
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Mentink, P. (author), Escobar Valdivieso, D. (author), Forrai, A. (author), Willems, F.P.T. (author)Motivated by automotive emission legislations, a Virtual NOx sensor is developed. This virtual sensor consists of a realtime, phenomenological model that computes engine-out NOx by using the measured in-cylinder pressure signal from a single cylinder as its main input. The implementation is made on a Field Programmable Gate Array–Central...conference paper 2019
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Hunicz, J. (author), Mikulski, M. (author)One of the pending issues regarding Homogeneous Charge Compression Ignition (HCCI) engines is high load operation limit constrained by excessive pressure rise rates (PRRs). The present study investigates various measures to reduce combustion harness in a residual-affected HCCI engine. At the same time, the impact of those measures on efficiency...conference paper 2018
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Duda, K. (author), Wierzbicki, S. (author), Śmieja, M. (author), Mikulski, M. (author)In the present paper, laboratory produced, animal origin biofuels (swine lard and turkey lard had been used as raw material for biofuel production) were evaluated in terms of physicochemical parameters and compared with commercial mineral diesel fuel and its mixture with rapeseed oil methyl esters. Basing on the results of physicochemical...article 2018
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Bouwman, K.R. (author), Pham, T.H. (author), Wilkins, S. (author), Hofman, T. (author)Within hybrid electric vehicles (HEVs) predictive energy management strategies (EMSs) have the potential to reduce the fuel consumption compared to conventional EMSs, where the drive cycle is unknown. Typically, predictive EMSs require a future vehicle speed profile prediction. However, when prediction is inaccurate, the systems fuel reduction...article 2017
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Mentink, P. (author), Seykens, X. (author), Escobar Valdivieso, D. (author)To meet future emission targets, it becomes increasingly important to optimize the synergy between engine and aftertreatment system. By using an integrated control approach minimal fluid (fuel and DEF) consumption is targeted within the constraints of emission legislation during real-world operation. In such concept, the on-line availability of...article 2017
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Luo, X. (author), Velayutham, S. (author), Willems, F.P.T. (author)Closed-loop combustion control helps to achieve precise fuel injection and robust engine performance against disturbances. The controller design complexity increases greatly with larger number of fuel injection pulses due to the coupled influence of changing individual pulse on the combustion process. In this work, we experimentally demonstrate...conference paper 2017
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- Pham, T.H. (author), Jacob, J. (author), Wilkins, S. (author), Lauwerys, C. (author), Dhaens, M. (author) conference paper 2017
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Nageshrao, S.P. (author), Jacob, J. (author), Wilkins, S. (author)For conventional buses, based on the decades of their operational knowledge, public transport companies are able to optimize their cost of operation. However, with recent trend in the usage of electric buses, cost optimal operation can become challenging. In this paper an offline optimal charging strategy is developed to minimize the energy cost...article 2017
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- Oom, M. (author), Feru, E. (author), de Jager, B. (author), de Lange, R. (author), Ouwerkerk, H. (author) conference paper 2017
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van der Weijst, R. (author), van Keulen, T. (author), Willems, F.P.T. (author)In the context of model-free optimization of dynamic nonlinear multiple-input-single-output (MISO) systems using extremum-seeking (ES), accurate and fast derivative estimation of the systems steady-state performance map is essential. This paper presents a generalized derivative estimator (DE) framework for unknown MISO static maps. To this...article 2017
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Mikulski, M. (author), Bekdemir, C. (author)Natural gas - diesel, Reactivity Controlled Compression Ignition (RCCI) is currently one of the most promising combustion strategies for the next generation heavy-duty engines. A major issue to be addressed for this dual fuel concept to become practically applicable is its low combustion efficiency and associated high methane emissions in...article 2017
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- Willems, F.P.T. (author) public lecture 2017
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Kulah, S. (author), Forrai, A. (author), Rentmeester, F. (author), Donkers, T. (author), Willems, F.P.T. (author)The robustness of a new single-cylinder pressure sensor concept is experimentally demonstrated on a six-cylinder heavy-duty diesel engine. Using a single-cylinder pressure sensor and a crank angle sensor, this single-cylinder pressure sensor concept estimates the in-cylinder pressure traces in the remaining cylinders by applying a real-time,...article 2017
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Hommen, G. (author), Kupper, F. (author), Seykens, X. (author)This article describes a NOx sensor based urea dosing control strategy for heavy-duty diesel aftertreatment systems using Selective Catalytic Reduction. The dosing control strategy comprises of a fast-response, model-based ammonia storage control system in combination with a long-timescale tailpipe-feedback module that adjusts the dosing...article 2017
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Mikulski, M. (author), Wierzbicki, S. (author)Increasing demands for the reduction of exhaust emissions and the pursuit to reduce the use of fossil fuels require the search for new fuelling technologies in combustion engines. One of the most promising technologies is the multi-fuel compression ignition engine concept, in which a small dose of liquid fuel injected directly into the cylinder...article 2017
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Hommen, G. (author), Ramachandran, S. (author), Ramesh, S. (author), Feru, E. (author), Seykens, X. (author), Willems, F.P.T. (author)Heavy duty diesel vehicles compliant with current Euro VI／EPA13 emission limits employ aftertreatment systems based on DOC／DPF technology for soot and particulate matter reduction and SCR catalysts with urea dosing for NOx reduction．Traditionally，the majority of the control systems used for urea dosing are map based．However，increasing system...article 2017
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Kok, R. (author), de Groot, R. (author), van Zyl, P.S. (author), Wilkins, S. (author), Smokers, R.T.M. (author), Spreen, J.S. (author)Late 2016, London Mayor Sadiq Khan announced to join 11 other major cities, including New York, Los Angeles, Copenhagen, Hamburg and Amsterdam, that have committed to begin moves to phase out their procurement of pure diesel buses by the end of 2020. With the initiative, major cities are working together to challenge bus manufacturers to produce...other 2017
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van Zyl, P.S. (author), Kok, R. (author), Smokers, R.T.M. (author), Wilkins, S. (author), Spreen, J.S. (author)The supply chain of goods delivered in urban areas is larger than the transport associated purely with the ‘last mile’ in city distribution. In retail, for example, the flow of goods is often routed via regional or national distribution centres. The transport of goods towards and between these centres is often characterized by long-distance...other 2017
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Smokers, R.T.M. (author), Wilkins, S. (author), Kok, R. (author), Zyl, P.S. (author), Spreen, J.S. (author)There is growing consensus among governments, businesses and consumers about climate change and the required energy transition. At the Paris climate conference (COP21) in December 2015, 195 countries adopted the first-ever universal, legally binding global climate deal. The agreement sets out a global action plan to put the world on track to...other 2017
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- Banerjee, R. (author), Mikulski, M. (author), Chakraborty, A. (author), Roy, S. (author), Bose, P.K. (author) article 2017
Searched for: subject%3A%22PT%255C%2B%255C-%255C%2BPower%255C%2BTrains%22
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