Study on control strategy and simulation for ISGType Parallel Hybrid Electric Vehicle

A reasonable control strategy for Parallel Hybrid Electric Vehicle can achieve optimal energy distribution so as to obtain good fuel economy and lower emissions. The article uses CRUISE to establish a powertrain model for ISG_Type Parallel Hybrird Electric Vehicle, adopting MATLAB/stateflow to develop powertrain control strategy, then conduct joint simulation. In this paper, logic threshold control strategy based on engine optimization is proposed. According to different PHEV(Parallel Hybrid Electric Vehicle) operating modes, adopting reasonable torque distribution algorithm to make engine work along optimal operation line. By using simulation platform CRUISE, simulation for the control strategy based on NEDC driving cycles is conducted. The results indicate that hybrid electric vehicle has better fuel economy and emissions than traditional vehicle.