Hybrid vehicle

A hybrid vehicle comprising:

• a first rotating electric machine connected to an output shaft;
• an internal combustion engine;
• a second rotating electric machine connected to the internal combustion engine;
• a deriving portion configured to derive a required driving force based on an opening degree of an accelerator pedal operated by a driver of the hybrid vehicle;
• and
• a control portion configured to control the internal combustion engine, the first rotating electric machine, and the second rotating electric machine according to the required driving force,
• the control portion being configured to hold a revolution of the internal combustion engine at a predetermined value, being greater as the traveling speed is higher, and variable based on a travelling speed of the hybrid vehicle when the required driving force is 0 or less during travelling of the hybrid vehicle by power of the first rotating electric machine, and
• the control portion being configured to increase the revolution of the internal combustion engine from the held revolution to the revolution corresponding to the required driving force, when the required driving force becomes larger than 0, and when the predetermined value is lower than the revolution corresponding to the required driving force.