Numerical optimal control as a method to evaluate the benefit of thermal management in hybrid electric vehicles

摘要

In this paper, a numerical solution of the optimal thermal management problem for a parallel hybrid electric vehicle is presented by taking into account the engine temperature. This temperature influences the fuel consumption and has a dynamical behavior which is controlled by the engine torque. Simulation results are presented to evaluate the benefit of adding this new state variable to the optimization problem, by comparison to the simplified problem where only the State Of Charge (SOC) is taken into account.