Demand-Based Control Design for Efficient Heat Pump Operation of Electric Vehicles

Dominik Dvorak, Daniele Basciotti and Imre Gellai
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Dominik Dvorak: Center for Low-Emission Transport—Electric Drive Technologies, AIT Austrian Institute of Technology GmbH, 1210 Vienna, Austria
Daniele Basciotti: Center for Low-Emission Transport—Electric Drive Technologies, AIT Austrian Institute of Technology GmbH, 1210 Vienna, Austria
Imre Gellai: Center for Low-Emission Transport—Electric Drive Technologies, AIT Austrian Institute of Technology GmbH, 1210 Vienna, Austria

Energies, 2020, vol. 13, issue 20, 1-18

Abstract: Thermal management systems of passenger vehicles are fundamental to provide adequate cabin thermal comfort. However, for battery electric vehicles they can use a significant amount of battery energy and thus reduce the real driving range. Indeed, when heating or cooling the vehicle cabin the thermal management system can consume up to 84% of the battery capacity. This study proposes a model-based approach to design an energy-efficient control strategy for heating electric vehicles, considering the entire climate control system at different ambient conditions. Specifically, the study aims at reducing the energy demand of the compressor and water pumps when operating in heat pump mode. At this scope, the climate control system of the reference vehicle is modelled and validated, enabling a system efficiency analysis in different operating points. Based on the system performance assessment, the optimized operating strategy for the compressor and the water pumps is elaborated and the results show that the demand-based control achieves up to 34% energy reduction when compared to the standard control.

Keywords: modelling and simulation; heat pump; demand-based control; operating strategy; efficiency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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