Application of fuzzy logic to control traction force for power-split hybrid electric vehicles
Corressponding author's email:
viethq@hcmute.edu.vnKeywords:
internal combustion engine (ICE), electric motor (EM), hybrid electric vehicle (HEV), power-split device, fuzzy logic control (FLC)Abstract
Nowadays, hybrid electric vehicles (HEV) have been speedily developed and deployed by automobile manufacturers to improve fuel consumption and emissions. Among different hybrid configurations, the power-split HEV combines the advantages of series and parallel hybrids. However, optimization of its operation mode depends on many components such as an internal combustion engine, motors/generators, battery, and power-split device. Besides, the control strategy development for power-split HEV is more complex compared with the other HEV. This study focused on control strategies of power flow in power-split HEV system. Based on the analysis of efficiency in a representative driving cycle, a fuzzy torque control strategy was developed to optimize the power management of the power-split HEV. The power-split HEV model had been built with Matlab/Simulink package, and the simulation results showed significant improvements in fuel consumption and performance.
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