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Power consumption characterization, modeling and estimation of electric vehicles

Published: 03 November 2014 Publication History

Abstract

Rapid electric vehicle (EV) penetration gives a threatening challenge in electric energy generation. An 1,814 kg curb weight full electric vehicle driving 18,129 km/year consumes electricity energy equivalent to 74% of the total residential electricity use per person in the US. This implies that 27% more nationwide electricity generation is needed when 70% of passenger vehicles are replaced with EVs.
This paper is the first step toward systematic EV design-time and runtime optimization. We introduce instantaneous power consumption modeling of an EV by the curb weights, speed, acceleration, road slope, passenger and cargo weights, motor capacity, and so on, as a battery discharge model. The model also considers the onboard charger, regenerative braking and so on, as a battery charge model. To insure model fidelity, we fabricate a lightweight custom EV, perform extensive measurement, and derive model coefficients using multivariable regression analysis. We estimate the EV instantaneous power consumption of a given speed and route profiles and verify the estimation fidelity with a real test run data.

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    cover image ACM Conferences
    ICCAD '14: Proceedings of the 2014 IEEE/ACM International Conference on Computer-Aided Design
    November 2014
    801 pages
    ISBN:9781479962778
    • General Chair:
    • Yao-Wen Chang

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    • IEEE SSCS Shanghai Chapter
    • IEEE-EDS: Electronic Devices Society

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    IEEE Press

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    Published: 03 November 2014

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