Research on the Energy Management Strategy of Range Extended Fuel Cell Electric Vehicle

摘要

Aiming at the influence of too low SOC of battery and fuel cell power change on the life of energy source system, a kind of multi-mode energy management control strategy was designed based on an extended-range fuel cell vehicle equipped with a fuel cell-battery power system. The strategy can control the vehicle to switch automatically between power following and multi-point thermostat control methods according to changes of battery SOC and vehicle operation condition. Simulation results show that the designed control strategy can effectively avoid the damage to the life of the energy source system and keep the fuel cell operating points within the higher efficiency area.