Explicit optimal control policy and its practical application for hybrid electric powertrains

This paper presents a simplified, yet realistic, model of a hybrid electric powertrain and derives the explicit solution of the optimal energy management. The explicit solution of this optimal control problem consists of simple rules that rely on powertrain parameters only. The simplified model is validated on a more complex model relying on measured data. Finally, a causal, real-time control strategy including anti-windup is presented. This strategy relies on the optimal control of the simplified model and is successfully evaluated on the complex model that relies on measured data.

Research Highlights
► simplifed model of parallel hybrid electric vehicle is presented
► analytical solution of the optimal control problem minimizing fuel consumption is derived
► this analytical solution is represented as rules that rely on powertrain parameters only
► an anti-windup scheme for a causal control is presented