| abstract |
(57) [Problem] To provide a system capable of smoothly shifting from cylinder deactivation to all-cylinder operation in consideration of a driver's intention using cylinder deactivation technology. SOLUTION: In an engine control device of a hybrid vehicle which includes an engine and a motor as drive sources, and at least a part of the cylinders are deactivated when the vehicle is decelerated, and the motor is regenerated, a cylinder deactivation in which the engine speed is a reference for the cylinder deactivation is provided. Cylinder deactivation return determination means (step S174) for returning the engine from cylinder deactivation when the engine speed has decreased to the lower limit of continuation execution engine speed, and a brake switch for detecting operation of the brake. Cylinder deactivation determination changing means for changing the cylinder deactivation continuation execution lower limit engine speed in accordance with the presence or absence of the brake operation detected by the switch (step S182) Is provided. |