Patent ID: 6953021

Claim:
A control device for a hybrid vehicle having an engine and a single motor as driving sources and a power storage unit for supplying power to a single motor to drive the motor for assisting engine output when the vehicle is accelerating and receiving power generated by the single motor by regenerative braking when the vehicle is decelerating, wherein the engine is a cylinder pause-type engine and is capable of switching between all-cylinder driving operation, in which all of the cylinders of the engine are normally operating for outputting an engine output and a cylinder pause driving operation, in which at least one cylinder is paused by fully closing both intake and exhaust valves of each cylinder while cutting fuel supply to the engine, the control device of the hybrid vehicle comprising: a cylinder pause operation determination device for determining whether to switch the engine from the all-cylinder driving operation to the cylinder pause driving operation in response to the driving state of the vehicle; a fuel cut executing device for executing fuel cut before entering into the cylinder pause driving operation; a cylinder pause driving operation executing device for executing the cylinder pause driving operation by closing both intake valve and exhaust valve by a hydraulic-type variable timing mechanism after fuel cut has been executed; and a regeneration amount incresing device for incresing the regeneration energy for changing the power storage device by adding to the generation energy of recovered energy obtained when the cylinders of the engine are driving by the cylinder pause driving operation in place of the all-cylinder driving operation when the cylinder pause operation is determined by said cylinder pause operation determination device.