NEDC Based Compensated Forward Simulation Approach with Energy Management for Parallel Hybrid Electric Vehicles

This paper presents the power management strategy for a parallel hybrid electric vehicle (PHEV). The vehicle is powered by dual energy sources consisting of internal combustion engine (IC engine) as the peak power source and the electric battery as the secondary energy source. The operational principle of the power management strategy and the possible power flow patterns are described. Based on the power flow and energy availability of the energy sources, the decision making and the relevant switching function are designed to facilitate the effective power sharing between the two sources. The standard New European Driving Cycle (NEDC) velocity profile has been utilized via a suitable compensator that feed the data into the forward mathematical model. The obtained results indicated the strengths of such a hybrid topology. Nomenclature and abbreviations ( ) V t -Velocity of the vehicle (m/s) ( ) F t -Load force (N) M -Weight of the vehicle (kg) R -Radius of the wheel (m) ( ) t  -Angular velocity of the wheel (rad/s) g -Gravity (m/s) ( ) u t -Ground wind velocity (m/s) ( ) t  -Angle of inclination ( ) t  -the heading angle of the vehicle related to Ground wind  -Density of the air (kg/m) f A -frontal projected area of the vehicle (m ) d C -Aerodynamic drag coefficient of the vehicle