Method for estimating the energy consumption of electric vehicles and plug-in hybrid electric vehicles under real-world driving conditions

A novel framework is presented in which the energy consumption of an electric vehicle (EV) or the zero-emissions range of a plug-in hybrid electric vehicle (PHEV) may be predicted over a route. The proposed energy prediction framework employs a neural network and may be used `off-line' to better estimate the real-world range of the vehicle, or 'on-line' integrated within the vehicle's energy management control system. The authors propose that this approach provides a more robust representation of the energy consumption of the target EVs compared to standard legislative test procedures. This is particularly pertinent for vehicle fleet operators that may use EVs within a specific environment, such as inner-city public transport, or the use of urban delivery vehicles. Experimental results highlight variations in EV range in the order of 50% when different levels of traffic congestion and road type are included in the analysis. The ability to estimate the energy requirements of the vehicle over a given route is also a prerequisite for using an efficient charge blended control strategy within a PHEV. Experimental results show an accuracy within 20-30% when comparing predicted and measured energy consumptions for over 800 different real-world EV journeys.

Language

  • English

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Filing Info

  • Accession Number: 01484250
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 19 2013 8:32AM