HYBRID VEHICLE CONTROL METHOD AND HYBRID VEHICLE CONTROL DEVICE

A method for controlling a hybrid vehicle is a method for controlling a hybrid vehicle having a power generation system in which an engine and a drive shaft are connected and which includes a power generator configured to rotate together with the engine, and a drive system that is connected to the power generation system and driven by receiving electric power supplied from a chargeable battery. In this control method, a rotational speed command value for the power generation system is derived in accordance with a state of the drive system, a torque command value for the power generation system is derived such that the rotational speed of the power generation system reaches the rotational speed command value, damping control to suppress a natural vibration component generated in a part via which the engine and power generator are connected is performed on the torque command value to calculate a final torque command value for the power generation system, and when system resonance could occur as a result of vibration of a component different from the natural vibration component, the torque command value is established as the final torque command value without performing the damping control.