Control apparatus for hybrid vehicle

A control apparatus for a hybrid vehicle with an engine capable of cutting off cylinders and a motor as drive sources of the vehicle, which performs regenerative braking by the motor depending on a deceleration state when the vehicle is decelerating, comprising:

• a cylinder cut-off determination section which determines whether the cylinders should be cut off depending on the running conditions of the vehicle;
• a cylinder cut-off cancellation determination section which determines whether the cylinder cut-off should be cancelled, depending on the running conditions of the vehicle while the operation of the cylinders of the engine is cut off;
• a cylinder cut-off execution section which operates an actuator for cutting off the cylinder operation of the engine when cylinder cut-off is determined to be possible by the cylinder cut-off determination section;
• and
• a cylinder cut-off control section which cuts off the cylinders of the engine based on the operating conditions of the cylinder cut-off determination section, the cylinder cut-off cancellation determination section and the cylinder cut-off execution section,
• wherein when a voltage of a drive source of the actuator that is operated by the cylinder cut-off execution section is greater than or equal to a predetermined voltage, and a temperature of a medium that acts by the operation of the actuator is within a predetermined range, the cylinder cut-off determination section determines that cylinder cut-off is possible.