Browsing by Keyword "HEV"
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Item Advanced shifting control of a two speed gearbox for an electric vehicle(Korean Society of Automotive Engineers, 2015) Allende, M.; Prieto, P.; Hériz, B.; Cubert, J. M.; Gassman, T.; Tecnalia Research & Innovation; POWERTRAINThe apparition of electric vehicles on the market generates new challenges. Within them, one of the most important is related to the vehicle autonomy. In this paper an advanced shifting control system for a two speed gearbox is presented. It combines driving conditions and driving style inference techniques in conjunction with an expert decision control system for selecting the most suitable gear for energy saving. The expert control system is offline-tuned using a set of pre-specified simulation trips which characterize different scenarios. These pre-specific trips are recognized in real time to apply the expert control rules. The strategy is combined with an automatic shifting sequence with speed synchronization which reduces shifting times and torque transitions. Compared to a single-geared vehicle, an energy saving up to 10% can be achieved keeping the driver sensations while driving. An ad-hoc HIL mechatronic test bed has been developed for the complete system testing purposes.Item Developing models for future real-time platforms: Virtual simulation and design of new components and systems for aircraft and remotely piloted aircraft systems(Institute of Electrical and Electronics Engineers Inc., 2015-06-16) Garcia-Hernandez, L.; Cuerno-Rejado, C.; Gandia-Aguero, F.; Rodriguez-Sevillano, A. A.; Cervero, A.; Moreno, G.; Barcala-Montejano, M. A.; Pena-Rodriguez, A.; Estensoro-Astigarraga, F. J.; Lasa-Aguirrebengoa, J.; Pelayo-Rivera, A.; Tecnalia Research & Innovation; GENERAL; INNOV_AIR_MOBILIn the development of electrified and other vehicle systems, the modelling and simulation of the vehicle is very important. With these tools the preliminary design, as well as later detailed studies of the systems developed, allow engineers to spend less time on each phase of their projects or address them with an integrated approach. In addition, this integrated approach provides the pos sibility of building hardware-in-the-loop models with all the components required. This vehicle modelling and simulation has gained more interest with the increasing use of a wide variety of RPAS, ranging from light weight micro aircraft to large vehicles of various tons. For this reason, the previously-described building tools are the final objective of the developing models to be used in real-time platform projects. The first step present ed i n this paper is to build a simulato r that reproduces the behaviour of a selected aircraft and validate it. This paper presents the study of the performances and behaviour of an OPV used to validate the simulator developed later. At the end, some preliminary tests and estimations of the performances for the selected OPV with an electric motor are presented.Item Integrated modeling approach for highly electrified HEV. virtual design and simulation methodology for advanced powertrain prototyping(2009) Valera, Juan José; Iglesias, Iñaki; Peña, Alberto; INNOV_AIR_MOBIL; Tecnalia Research & InnovationNowadays car development time from concept approval to Job 1 is between 2 and 5 years (with an average of 3 years), but in the coming years is necessary to reduce it in order to achieve the optimal 12-month car. On the other hand the penetration rate of alternative powertrains (electric, hybrid) is growing quickly, increasing the complexity of the vehicle and therefore development time cycle. Presented architecture and methodology in this paper, is based on virtual modelling of system/components, giving the possibility of an integrated vehicle virtual simulation, and also allowing the substitution of system/component models for real hardware (Hardware-In-the-Loop, HiL), or even using the entire vehicle model in a driving simulator searching for Human-In-the-Loop (HuiL) approaches. As far as the modelling represent the real system/components with accuracy, the use of these vehicle integrated virtual models will be more useful, allowing reduce the development time and also increasing vehicle overall quality.Item Integrated modeling approach for highly electrified HEV. Virtual design and simulation methodology for advanced powertrain prototyping(2009) Valera, Juan José; Iglesias, Iñaki; Peña, Alberto; Martin, Adrian; Sánchez, Javier; INNOV_AIR_MOBIL; Tecnalia Research & InnovationNowadays car development time from concept approval to Job 1 is between 2 and 5 years (with an average of 3 years), but in the coming years is necessary to reduce it in order to achieve the optimal 12-month car. On the other hand the penetration rate of alternative powertrains (electric, hybrid) is growing quickly, increasing the complexity of the vehicle and therefore development time cycle. Presented architecture and methodology in this paper, is based on virtual modelling of system/components, giving the possibility of an integrated vehicle virtual simulation, and also allowing the substitution of system/component models for real hardware (Hardware-ln-the-Loop, HiL), or even using the entire vehicle model in a driving simulator searching for Human-ln-the-Loop (HuiL) approaches. As far as the modelling represent the real system/components with accuracy, the use of these vehicle integrated virtual models will be more useful, allowing reduce the development time and also increasing vehicle overall quality.