CONTROL SYSTEM AND METHOD OF HYBRID TYPE CONSTRUCTION MACHINE

摘要

PURPOSE: Control system and method of a hybrid construction machine are provided to be able to be applied to a construction machine, which has no transmission and experiences the change of the sharp frequency of an output change, and to optimize mileage efficiency. CONSTITUTION: A control system of a hybrid construction machine comprises a mode detecting unit(60), a torque detecting unit(70), a memory unit(40) and a hybrid control unit(50). The mode detecting unit detects the operating mode of an engine(10). The torque detecting unit detects the output torque of a hydraulic pump(13), which is required for the driving of a hydraulic actuator(15). The memory unit stores the lower bound and the upper bound of the engine torque, which is established at the operating mode of the engine. The hybrid control unit receives the detected operation mode and the detected output torque of the hydraulic pump and controls by a control algorithm.