Hybrid vehicle control device and control method

A control apparatus of a hybrid vehicle that uses a combination of an engine and a traveling motor as vehicle drive sources, comprising:

• an engine speed detector configured to detect an engine rotational speed;
• an EV-state determination unit configured to determine whether a mode is an EV state in which only the traveling motor is used as the drive source;
• an EV-state annunciator configured to notify a driver about the EV state;
• and
• a switching controller configured to control switching between notification and non-notification about the EV state,
• wherein the switching controller comprises:
• a first switching control section configured to bring the EV-state annunciator to a non-notification state when the EV-state determination unit determines that the mode is not the EV state and the engine rotational speed is greater than a predetermined first threshold value, and
• a second switching control section configured to bring the EV-state annunciator to a notification state when the EV-state determination unit determines that the mode is the EV state and the engine rotational speed is less than or equal to a predetermined second threshold value greater than the first threshold value.