Method for controlling battery soc of hybrid vehicle

The present invention to differentiate the secondary battery SOC balance control strategy for a hybrid vehicle according to the SOC control for a hybrid vehicle ways to improve the urban fuel economy, the effects battlefield load consumption according to the LDC voltage control of the hybrid vehicle on the fuel economy is depending on the degree and gradient of the running mode by using the difference to differentiate SOC balance control strategy for the auxiliary battery to provide a battery SOC control method for a hybrid vehicle to improve the fuel economy it is an object of the city.