ABSTRACT
This paper presents a detailed Hybrid Electric Vehicle (HEV) modelling method
based on a multi-physics approach. The model is introduced in order to provide
design engineers with the capability to investigate effects of component selection
and to develop control systems and automatic optimization processes for HEVs. A
full drivetrain system of a series/parallel HEV is developed including the internal
combustion engine (ICE), the motor generator (MG) and the power split device
(PSD) along with the vehicle longitudinal dynamics. All aspects of rotational inertial
dynamics, friction, damping and stiffness properties are considered. The interaction
between all these modules is implemented in the MATLAB/Simulink/Simscape
blockset environment. The concepts of modularity, flexibility, and user-friendly
interface are emphasized during the model development. The numerical simulation
results are compared with the analytical results of the same hybrid power train. The
convergence between the results makes the model convenient for the future
optimization techniques on HEV.