Browse by Lectorate "HAN Automotive Research"

Now showing items 51-69 of 69

Fosfor- en Boriumsegregatie tijdens weerstandpuntlassen van geavanceerde hogesterktestalen
Uijl, N.J. den ; Amirthalingam, M. ; Hermans, M.
2012, Article / Letter to editor (Lastechniek : vakblad voor verbinden en snijden, vol. 2012, iss. 11, (2012), pp. 18-21)Tijdens de conferentie Trends in Welding Research van juni jl. in Chicago was een speciale sessie gewijd aan de microstructuurontwikkeling tijdens het lassen. Eén van de bijdragen was een presentatie van de onderzoeksresultaten van een M2i-onderzoek (Materials Innovation Institute), waarbij Tata Steel en TU Delft betrokken waren [1]. Het onderzoek had betrekking op de lasbaarheid van in ontwikkeling zijnde hogesterktestaalsoorten.
Experimental assessment of an energy management strategy on a fuel cell hybrid vehicle
Veenhuizen, P.A. ; Tazelaar, Edwin
2012, Article in monograph or in proceedings (EVS26 International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium)Fuel cell hybrid power trains comprise an energy storage to supply peaks in the power demand and to facilitate regenerative braking. In terms of control systems, the presence of storage provides additional freedom to minimize the vehicle’s fuel consumption. In a previous paper [1] an analytical solution to the energy management problem for fuel cell hybrid propulsion systems was derived and compared with existing strategies like the Equivalent Consumption Minimization Strategy (ECMS) [1–4]. An experimental study has been carried out on a Fiat Doblo, which was converted from a regular gasoline powered vehicle into a fuel cell hybrid vehicle. The fuel cell drive train comprises a 10kW proton exchange membrane fuel cell stack connected by means of a DC/DC converter to a Li-ion battery. The aforementioned analytical energy management strategy was used during the experiments. The experiments were carried out on a roller test bench and on the road. The experiments were conducted not only to validate the energy management strategy and the underlying models but also to establish its practical value. The paper shortly reviews the energy management problem nd solution. Next the vehicle and its fuel cell hybrid drive train are presented as well as the experimental setup. The paper finishes by stating the experimental results and the conclusions.
EV Deelmobiliteit Gelderland, de weg naar succes.
Dekker, P. ; Gilsing, F ; Tillema, F. ; Dieker, M.L.R. ; Schotman, R ; Poorterman, R ; Vossebelt, W
2021, External research report
Engineering Methods Pack: Cards to Improve Engineering Research
Hendriks, D.J.H.C. ; Turnhout, K.G. van ; Buning, L.R. ; Elzen, E. ten ; Stralen, W.A. van ; Tankink, T. ; Wesselingh, E.
2020, Article in monograph or in proceedings (Proceedings of the 22nd International Conference on Engineering and Product Design Education (E&PDE 2020))
Driving cycle characterization and generation, for design and control of fuel cell buses
Bruinsma, J. ; Veenhuizen, P.A. ; Bosch, P.P.J. van den ; Tazelaar, Edwin
2009, Article / Letter to editor (World Electric Vehicle Journal, vol. 2009, iss. 3, (2009))Optimization routines for battery, supercap and fuel cell stack in a fuel cell based propulsion system face two problems: the tendency to cycle beating and the necessity to maintain identical amounts of stored energy in battery and supercap at the start and end of the driving cycle used in the simulation. A method is proposed to reduce these problems. The proposed method characterizes driving cycles and generates alternative cycles with an arbitrary length from an existing cycle, based on the characteristics of the original. The method is demonstrated with an existing driving cycle for buses and validated with measurements from a trolley bus in the region of Arnhem, the Netherlands.
Dolly Steering Controller for Enhancing Low-and High-Speed Performance of High Capacity Vehicles
Tomar, A.S. ; Kalose, Abhishek ; Kural, K. ; Pauwelussen, J.P.
2019, Article in monograph or in proceedings (Klomp, M.; Bruzelius, F.; Nielsen, J. (ed.), Advances in Dynamics of Vehicles on Roads and Tracks. IAVSD 2019. Lecture Notes in Mechanical Engineering, pp. 1278-1287)The adaptation of high capacity vehicles (HCVs) into existing commercial vehicle fleets have been considered a potential solution for reducing emissions, operational costs and infrastructure damages. However, due to increased length and number of articulations, there are challenges associated with HCVs with regard to their manoeuvrability at low-speeds and stability at high-speeds. This paper presents a Virtual Rigid Axle Command Steering control strategy for dolly steering, due to which both low- and high-speed performance of HCVs may be improved significantly compared to their conventional version with non-steered dolly. To demonstrate this, two HCVs, namely, A-double (tractor-semitrailer-dolly-semitrailer) and LHV-D (truck-dolly-semitrailer) are considered in this work.
Dependencies of driver steering control parameters
Pauwelussen, J.P.
2012, Article / Letter to editor (Journal Vehicle System Dynamics, vol. 50, iss. 6, (2012), pp. 939-959)Path tracking driver models assume the observed path deviation ahead of the vehicle to be proportionally transferred to a corrective steering input. The most simple version of such a model includes three parameters, a single preview distance, a steering gain and a delay time, being examined in this paper, in dependency of vehicle properties, driver characteristics, velocity and path. It is shown that, for different and bounded preview lengths, a driver can follow any path with almost the same minimum path error, if the gain is adapted appropriately. The upper boundary is path-dependent but driver and path characteristics have only a minor effect on the resulting relationship between preview length and gain. Consequently, gain and preview length may well vary along some path. This has been examined, experimentally, for different drivers. A too small preview length conflicts with closed-loop stability, explicitly described in terms of vehicle parameters, vehicle speed and driver delay time. The results of this paper provide a basis for enhanced understanding of human driver behaviour.
Cylinder to cylinder variation related to gas injection timing on a dual-fuel engine
Merts, M. ; Pet, Q.E. ; Mesman, P. ; Verhelst, S.
2019, Article in monograph or in proceedings (SAE Technical Paper 2019-01-1162)The natural gas/diesel dual-fuel engine is an interesting technique to reduce greenhouse gas emission. A limitation of this concept is the emission of un-combusted methane. In this study we analyzed the influence of PFI gas-injection timing on cylinder to cylinder gas-distribution, and the resulting methane emissions. This was done on a 6 cylinder HD engine test bench and in a GT-power simulation of the same engine. The main variable in all tests was the timing of the intake port gas injection, placed either before, after, or during the intake stroke. It showed that injecting outside of the intake window resulted in significant variation of the amount of trapped gaseous fuel over the 6 cylinders, having a strong impact on methane emissions. Injecting outside of the intake stroke results in gas awaiting in the intake port. Both testing and simulation made clear that as a result of this, cylinder 1 leans out and cylinder 6 enriches. The simulation showed how this is caused by the airflow into the manifold, which enters the manifold close to cylinder 1. This flow picks up gas residing before the first cylinders, and distributes it over the cylinders further downstream. The richer cylinders have a higher absolute methane emission. By calculating the ratio between trapped and emitted methane, we found operating points where the enrichment caused by unequal gas distribution led to lower relative methane emission. This can be attributed to the better combustibility of methane under richer conditions. Although the injection timing was placed outside the intake window on purpose in our experiments, the same distribution problem occurs in situations where the gas injection is longer than the intake stroke. This is a common situation with currently available dual-fuel systems. The solution can be found in a gas injection system with significantly higher capacity.
Containerwagen luistert naar oogstmachine: Open Robot Operating System en intelligente digitale elektronica op het veld
Benders, J.
2020, Article / Letter to editor (Aandrijven & Besturen, vol. 2020, iss. 11/12, (2020), pp. 32-35)
Climate Control of a Greenhouse with Concentrating Solar Power System : International Conference on Agricultural Engineering
Sonneveld, P.J. ; Bochove, I. van
2013, Article in monograph or in proceedings (International Conference on Agricultural Engineering)There are several greenhouses built with solar panels integrated into the roof. In summer time this will operate very well, although broad shadow stripes can result in growth and yield differences. In winter the amount of sunlight is further limited by the solar panels and will result in further reduction of light accession to the cultivation space. As a result, the crops suffer from growth problems. These drawbacks are eliminated by the application of Concentrating Power Systems (CSP) with Fresnel lenses. A Fresnel lens works like a normal lens but is much thinner. When the sun shines, the lens receives both direct and indirect sunlight. The lens will concentrate all direct sunlight, which can be collected as thermal energy in the focal point. This absorbed radiation can be converted with an absorption cooler into cold water for cooling. This cold water can cool the greenhouse without the need of water use. The indirect solar radiation, the diffuse light will not focus and is therefore available as a fairly constant light source in the building or in the greenhouse. The capture of all direct radiation at high intensities will diminish the incoming heat load, which is useful for a better internal climate control of greenhouses and buildings. This lower heat load makes it easier to keep the greenhouse cool with the absorber. In this study the details of energy flows and thermal conversion with absorption cooler is determined. Calculation shows a 47% heat load reduction (from 337 W/m2 to 157 W/m2) with the Fresnel lenses in the covering of the greenhouse. In the case of the collector in focus, only 48% of the captured direct radiation, available as thermal energy, is required to cool the greenhouse further with an absorption cooler. Cooling a greenhouse can result in up to 90% reduction in water consumption of the cultivation. The possibility of light regulation is another important advantage the Fresnel lenses have. The light amount can vary between 15 – 77% of the incoming radiation. The access of the generated energy can be used for extra illumination (light and energy regulation) and/or energy supply and/or a desalination system.
BRAVO, Businesscase Realiseerbare ADAS voor Ouderen
Hetjes, B. ; Stekelenburg, G. van
2022, External research report Alle moderne auto’s zitten er vol mee en voor de meeste chauffeurs zijn ze een essentieel onderdeel van zijn dagelijks autorijden geworden, de zogeheten ‘Advanced Driver Assistance Systems’ of afgekort ADAS. Deze rijhulpsystemen ondersteunen de autobestuurder actief of passief tijdens het autorijden. Waarom? Om de verkeersveiligheid verhogen! Niet voor niets is de afgelopen decennia zwaar geïnvesteerd in ADAS én heeft de Europese Unie 30 rijhulpsystemen verplicht gesteld voor alle nieuw ontwikkelde voertuigen vanaf 2022 en alle nieuw verkochte auto’s vanaf 2024. Helaas lijken deze systemen ontwikkeld te worden voor de universele gebruiker en ze sluiten daarom niet aan bij de wensen, behoeften en capaciteiten van specifieke doelgroepen, in dit geval bestuurders op leeftijd De potentie van ADAS wordt dus niet optimaal benut voor deze doelgroep. Juist deze bestuurders op leeftijd blijken extra baat te hebben bij een doelgroepgerichte ADAS Uit ongevallenstatistieken komt namelijk naar voren dat deze doelgroep, de oudere automobilist, verhoudingsgewijs vaker betrokken is bij verkeersongevallen Erger nog, de doelgroep blijkt zelfs relatief vaker de veroorzaker van ongevallen. Van de 20 500 zwaargewonden in 2017 was ongeveer 40 ouder dan 65 jaar. Van de verkeersdoden is 45 ouder dan 65 jaar. Bestuurders op leeftijd worden daarom als risicogroep in het verkeer aangeduid. Met de vergrijzing van Nederland, is de verwachting dat deze percentages de komende jaren zullen stijgen Het aantal ouderen groeit. Het aandeel ouderen op de weg neemt toe Ouderen reizen steeds vaker over langere afstanden. En ouderen bereiken een hogere leeftijd. Veel ouderen zien automobiliteit als een belangrijk element van hun onafhankelijkheid. Hun persoonlijke mobiliteit draagt bij aan het voorkomen van eenzaamheid op hogere leeftijd. Waarom zijn er ( geen doelgroepgerichte ADAS voor de bestuurder op leeftijd? Wanneer, waar of in welke situatie(s), heeft een doelgroepgerichte ADAS de meeste potentie? Wat is de behoefte bij de doelgroep? Eerder uitgevoerde onderzoeken tonen aan dat specifieke rijhulpsystemen het verhoogde ongevalsrisico van de oudere automobilist kunnen verlagen! Tijd voor een onderzoek dus! HAN Automotive Research heeft samen met haar partners V-tron en Max Mobiel de marktmogelijkheden en de businesscase onderzocht BRAVO zet hiermee een eerste stap naar doelgroepgerichte ADAS die kunnen bijdragen aan de verkeersveiligheid en het zelfstandige mobiliteitsbelang van de bestuurder op leeftijd.
Book of Technical Papers of the 15th International Symposium on Heavy Vehicle Transport Technology (HVTT15)
Pauwelussen, J.P. ; Aarts, L.
2019, Book (monograph)
Blikopener: een doorkijk naar een APK voor ADAS
Steen, A. van der
2021, Part of book or chapter of book (Veldhuizen, J (ed.), After Sales Congres, Handboek soldaat 2021, pp. 112-118)
Analytical solution of the energy management for fuel cell hybrid propulsion systems
Bosch, P.P.J. van den ; Tazelaar, Edwin ; Veenhuizen, P.A.
2012, Article / Letter to editor (IEEE Transactions on Vehicular Technology, vol. 61, iss. 5, (2012), pp. 1986-1998)The objective of an energy management strategy for fuel cell hybrid propulsion systems is to minimize the fuel needed to provide the required power demand. This minimization is defined as an optimization problem. Methods such as dynamic programming numerically solve this optimization problem. Strategies such as the equivalent consumption minimization strategy derive an analytical solution based on low-order models that approximate fuel cell stack and battery behavior. This paper presents an analytical solution based on models of the fuel cell system and battery close to physics. Apart from an analytical solution, this solution provides a fundamental understanding of the energy management problem. Because the solution is analytic and does not need a priori knowledge, the computation time is limited, and real-time implementation is possible. The solution presented is validated against existing optimizing energy management strategies in both simulations and experiments. For simulations, a midsize distribution truck is chosen. Experiments are carried out on a 10-kW scale test facility that comprises a fuel cell system, a battery, a motor with load, and an electronic load. In both simulations and measurements, the solution presented in this paper performs best compared to the equivalent consumption minimization strategy and a range-extender strategy, although the differences are within 3%. In the simulations, the solution presented approaches a minimum in fuel consumption, derived offline using dynamic programming, within 1%.[
Analytical solution and experimental validation of the energy management problem for fuel cell hybrid vehicles
Bosch, P.P.J. van den ; Tazelaar, Edwin ; Grimminck, M. ; Hoppenbrouwers, S.J.B.A. ; Veenhuizen, P.A.
2011, Article in monograph or in proceedings (EEVC)The objective of an energy management strategy for fuel cell hybrid propulsion systems is to minimize the fuel needed to provide the required power demand. This minimization is defined as an optimization problem. Methods such as dynamic programming numerically solve this optimization problem. Strategies such as the equivalent consumption minimization strategy derive an analytical solution based on low-order models that approximate fuel cell stack and battery behavior. This paper presents an analytical solution based on models of the fuel cell system and battery close to physics. Apart from an analytical solution, this solution provides a fundamental understanding of the energy management problem. Because the solution is analytic and does not need a priori knowledge, the computation time is limited, and real-time implementation is possible. The solution presented is validated against existing optimizing energy management strategies in both simulations and experiments. For simulations, a midsize distribution truck is chosen. Experiments are carried out on a 10-kW scale test facility that comprises a fuel cell system, a battery, a motor with load, and an electronic load. In both simulations and measurements, the solution presented in this paper performs best compared to the equivalent consumption minimization strategy and a range-extender strategy, although the differences are within 3%. In the simulations, the solution presented approaches a minimum in fuel consumption, derived offline using dynamic programming, within 1%.
Analysis of high capacity vehicles for Europe: application of performance based standards and improving manoeuvrability
Kural, K.
2019, Dissertation
An Integrated Testing and Model Based Design Approach for Semi-Trailer Weight Reduction : 11th Heavy Vehicle Transport Technology symposium, Melbourne
Visscher, C. ; Merts, M. ; Pauwelussen, J.P. ; Kural, K.
2010, Article in monograph or in proceedings (11th Heavy Vehicle Transport Technology symposium, Melbourne)The paper discusses the derivation of test data for three tractor-semitrailer combinations, to be used for strength and durability analysis of semi-trailers with the ultimate goal to reduce the semitrailer mass. Mathematical relationships have been used to transfer these data to representative loading data for the semi-trailer, in terms of forces and moments in all directions at the axles and king-pin, being used to optimize weight without compromising the vehicle resistance to fatigue. These activities have been the starting point of a follow-up project FORWARD (Fuel Optimised trailer Referring to Well Assessed Realistic Design loads) including now eleven different trailer manufacturers, and the Dutch Chassis and Body work association FOCWA. FORWARD will extend the previous approach with the objective to lower the trailer weight in order to improve the ratio of payload to fuel consumption. FORWARD consists of the following steps (1) a testing program, the larger part of which corresponds to normal use for a representative period, (2) to apply these data to validate a vehicle model allowing the derivation of representative loading data, and exploration of the effect of design changes on these loading data, (3) to apply these loading data for further FEM analysis of the global chassis and of local critical points.
Advanced vehicle dynamics of heavy trucks with the perspective of road safety
Stensson Trigell, A. ; Rothhämel, M. ; Pauwelussen, J.P. ; Kural, K.
2017, Article / Letter to editor (Journal Vehicle System Dynamics, (2017))
Adaptive Curricula, an answer to changing labour market requirements
Buning, L.R. ; Schuur, P.C. ; Vijlder, F.J. de
2019, Article in monograph or in proceedings (EAIR 2019 - Responsibility of Higher Education Systems: What? Why? How?)

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