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A Method for Identification of Driving Patterns in Hybrid Electric Vehicles Based on a LVQ Neural Network
National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, Beijing 100081, China
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Received: 9 July 2012; in revised form: 17 August 2012 / Accepted: 24 August 2012 / Published: 5 September 2012
Abstract: Driving patterns exert an important influence on the fuel economy of vehicles, especially hybrid electric vehicles. This paper aims to build a method to identify driving patterns with enough accuracy and less sampling time compared than other driving pattern recognition algorithms. Firstly a driving pattern identifier based on a Learning Vector Quantization neural network is established to analyze six selected representative standard driving cycles. Micro-trip extraction and Principal Component Analysis methods are applied to ensure the magnitude and diversity of the training samples. Then via Matlab/Simulink, sample training simulation is conducted to determine the minimum neuron number of the Learning Vector Quantization neural network and, as a result, to help simplify the identifier model structure and reduce the data convergence time. Simulation results have proved the feasibility of this method, which decreases the sampling window length from about 250–300 s to 120 s with an acceptable accuracy. The driving pattern identifier is further used in an optimized co-simulation together with a parallel hybrid vehicle model and improves the fuel economy by about 8%.
Keywords: hybrid electric vehicles; LVQ; neural network; driving pattern recognition; simulation; fuel economy
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Cite This Article
MDPI and ACS Style
He, H.; Sun, C.; Zhang, X. A Method for Identification of Driving Patterns in Hybrid Electric Vehicles Based on a LVQ Neural Network. Energies 2012, 5, 3363-3380.
He H, Sun C, Zhang X. A Method for Identification of Driving Patterns in Hybrid Electric Vehicles Based on a LVQ Neural Network. Energies. 2012; 5(9):3363-3380.
He, Hongwen; Sun, Chao; Zhang, Xiaowei. 2012. "A Method for Identification of Driving Patterns in Hybrid Electric Vehicles Based on a LVQ Neural Network." Energies 5, no. 9: 3363-3380.