Control device of hybrid vehicle

A control device of a hybrid vehicle including an electric differential portion having a differential mechanism distributing power from an engine to a differential electric motor and an output rotating member and an electric motor for running coupled to the output rotating, member in power transmittable manner such that a differential state of the differential mechanism is controlled by controlling an operating state of the differential electric motor comprising:

• a rattling noise occurrence region determining portion for determining whether an output torque of the electric motor for running is within a predetermined range or not, and
• an engine rotation fluctuation suppression control portion for suppressing rotation fluctuations of the engine as compared to the case that the output torque of the electric motor for running out of the predetermined range if the output torque of the electric motor for running is determined to be within a predetermined range by the rattling noise occurrence region determining portion and
• the engine rotation fluctuation suppression control portion suppressing rotation fluctuations of the engine by at least one of a control for suppressing an exhaust gas recirculation amount, a control for suppressing a remaining amount of combustion as in a cylinder in an exhaust stroke, a control shifting an air-fuel ratio to a lean side, and a control for delaying an ignition timing.