A Method for Identification of Driving Patterns in Hybrid Electric Vehicles Based on a LVQ Neural Network

作者：He Hongwen^*; Sun Chao; Zhang Xiaowei

来源：Energies, 2012, 5(9): 3363-3380.

DOI：10.3390/en5093363

• hybrid electric vehicles
• LVQ
• neural network
• driving pattern recognition
• simulation
• fuel economy

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%.

• 出版日期2012-9
• 单位北京理工大学