A control device for a hybrid vehicle, the hybrid vehicle comprising an engine
and a motor as power sources, the control device including: a battery device sending
energy to and receiving energy from the motor, a temperature sensor for measuring
the temperature of the battery device; a control section which is adapted to execute
a warming control operation for the battery device when the temperature of the
battery device is low; and a determination section for determining whether a cylinder
deactivation operation is permitted for the engine depending on the running state
of the engine. The control section executes a vibration control operation for the
engine by operating the motor so as to reduce vibration of the engine when it is
determined by the determination section that the partial cylinder deactivation
operation is permitted for the engine, and to perform the warming control operation
for the battery device by executing a vibration control operation for the engine.