Journal
BIG DATA MINING AND ANALYTICS
Volume 4, Issue 1, Pages 56-64Publisher
TSINGHUA UNIV PRESS
DOI: 10.26599/BDMA.2020.9020027
Keywords
Electric Vehicle (EV); multivariate Long Short-Term Memory (LSTM); speed forecasting; deep learning
Funding
- MIGRID project - USAID under the PEER program [5-398]
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This study introduced a speed forecasting method based on LSTM and found that the multivariate model outperformed the univariate model in short- and long-term forecasting, potentially improving the accuracy of vehicle speed prediction.
Speed forecasting has numerous applications in intelligent transport systems' design and control, especially for safety and road efficiency applications. In the field of electromobility, it represents the most dynamic parameter for efficient online in-vehicle energy management. However, vehicles' speed forecasting is a challenging task, because its estimation is closely related to various features, which can be classified into two categories, endogenous and exogenous features. Endogenous features represent electric vehicles' characteristics, whereas exogenous ones represent its surrounding context, such as traffic, weather, and road conditions. In this paper, a speed forecasting method based on the Long Short-Term Memory (LSTM) is introduced. The LSTM model training is performed upon a dataset collected from a traffic simulator based on real-world data representing urban itineraries. The proposed models are generated for univariate and multivariate scenarios and are assessed in terms of accuracy for speed forecasting. Simulation results show that the multivariate model outperforms the univariate model for short- and long-term forecasting.
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