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Impact of thermal-electric networks on the usability of EVs based on a study with a C-segment car

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TRA2018_11193_Impact_of_thermalelectric_networks_on_the_usability_of_EVs_based_on_a_study_with_a_C.pdf (1.688Mb)
Date
2018-04-16
Author
Hütter, Matthias
Nica, Mihai
Sumann, Ernst
Tao, Jianbo
Glos, Jan
Gepp, Markus
Helwig, Martin
De Campos Garcia, Helder-filipe
Bacar, Abdou
De-Guyenro, Nicolas
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Abstract
One of the major concerns of contemporary Fully Electric Vehicles (FEV) is the high dependency of the maximum range on ambient temperature conditions. In some cases the range of an EV can drop by more than 50%. One of the main reasons for this behaviour is the energy demand required by the thermal conditioning of the passenger compartment. Within this paper a comprehensive approach will be presented to reuse the waste heat energy of the powertrain components combined with a thermal storage for conditioning the car’s cabin. To evaluate the influence of the ambient temperature on the vehicle range, an electro-thermal simulation of a C-segment car, including the HVAC (Heating, Ventilation and Air Conditioning) and the cooling system was performed. The following components/systems were considered: battery, thermal energy storage, thermal insulation as well as heat pump and thermal preconditioning due to an inductive charger. It will be shown that, despite a low amount of waste heat from the high voltage components, the combination of the heat pump with the thermal energy storage (using advanced control strategies) leads to a remarkable range improvement. This research is based on the integration of new electro-thermal system components including novel control algorithms into the thermal system layout. In this article modern control approaches for heat-pump subsystem as well as overall control strategies for complete electro-thermal networks will be discussed. Model-based development has been proven to be an efficient way of control algorithms and software design, including advanced control techniques like MPC and virtual sensors. To validate the simulation results the system will be integrated in a demonstrator car (Mercedes Benz B-Class).
Keywords
EV range extension, waste heat energy, phase change material, comprehensive vehicle simulation, heat pump system, heat pump controller, wireless charger
Persistent identifier
http://hdl.handle.net/11012/72423
Document type
Peer reviewed
Document version
Postprint
Source
Procceedings of TRA. 2018, p. 1-10.
https://www.traconference.eu/
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  • Kybernetika pro materiálové vědy [50]
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