CONTROL METHOD FOR DRIVING SERIES MODE OF HYBRID VEHICLE

A control method for driving series mode of a hybrid vehicle is suitable for a four-wheel drive powertrain of a hybrid vehicle and can further improve a charging efficiency by implementing a second series mode, in which a vehicle is driven by a second motor for driving rear wheels, which is employed for a four-wheel drive powertrain of a hybrid vehicle, and an energy storage device is charged by power generation operation of a first motor connected to an engine through an engine clutch, beside a first series mode in which a vehicle is driven by the first motor and the energy storage device is charged by power generation operation of a third motor directly connected to the engine so that the first series mode or the second series mode may be selected in accordance with driver request power and charge power for the energy storage device.