Control system for hybrid baumaschine

A control device determines whether the charge level of a battery is below a threshold value or not, and reduces an auxiliary output of an auxiliary pump by controlling an auxiliary control mechanism on the basis of an auxiliary correction coefficient, increases the delivery rate of a main pump by a motor indicating controller based on an engine speed correction coefficient controls and increases the speed of a motor, and increases an output of the main pump, by increasing the speed of the motor by the amount of a decrease of the auxiliary output of the auxiliary pump.