CONTROL DEVICE FOR HYBRID CONSTRUCTION MACHINE

摘要

A control device for a hybrid construction machine, provided with: a discharge pressure introducing path for introducing the pressure discharged from a variable displacement pump to a regulator; and a load pressure introducing path for introducing either the maximum load pressure of each actuator and/or the load pressure of a hydraulic motor to the regulator. When determining that an actuator is in an non-operating state on the basis of the result of detection by an operation status detector, a controller excites the solenoid of an electromagnetic pilot control valve so that the oil discharged from the variable displacement pump is led to the hydraulic motor, and also the controller controls the regulator so that the regulator maintains constant the difference between the pressure discharged from the variable displacement pump and the load pressure of the hydraulic motor.