Research on energy management strategy and real-simulation in hybrid electric vehicle

Abstract

Dynamics performance and fuel economy of hybrid electric vehicle are largely restricted with energy management strategy. A new energy management strategy defined to engine power following and battery packs power compensating is proposed, according to supplying power source characteristic and driving demand of the vehicle, and method of power balance is brought about such as engine, battery packs and motor. The real-time simulation platform of hybrid electric vehicle energy management strategy with driver and vehicle controller is established in dSPACE, and real-simulations with the input of driver's operation are studied, energy management strategy and controlling program are validated, the harmoniously working ability of the controlled objects such as engine, battery packs and motor and vehicle dynamics performance are evaluated.