Energy Management for a Power-split HEV Based on a Robust Predictive Control

Abstract

Power-split HEV has two motors and an internal combustion engine. For the power-split HEV, minimization of fuel consumption through appropriate energy management has attracted a great deal of attention. In conventional energy management of HEVs, rule-based control, which utilizes an if-then rule created based on experimental data, is used. However, the control system design in this way may become complex due to the complicity of the HEV structure. In this paper, we propose an energy management strategy for HEVs using robust predictive control, which is one of the model predictive controls (MPC). We also verify that the proposed method can improve fuel efficiency compared with the existing rule-based control through numerical simulation.