Patent ID: 7513110
Filing Date: 2009-04-07
Classification: B60W,E02F,F04B,F16H

Abstract:
1. A control apparatus of a construction machine that includes: a variable displacement hydraulic pump driven by a prime mover; a hydraulic actuator driven with pressure oil discharged from the hydraulic pump; and a rotation speed detection device that detects an actual rotation speed of the prime mover, comprising: a prime mover control device that controls a rotation speed of the prime mover in accordance with an extent to which an operating member is operated; and an input torque control device that adjusts an input torque for the hydraulic pump based on a deviation between the actual rotation speed detected by the rotation speed detection device and a control rotation speed set through an operation of the operating member, wherein: the input torque control device executes control to decrease the input torque if the control rotation speed is greater than the actual rotation speed and the deviation calculated by subtracting the control rotation speed from the actual rotation speed is more negative than a predetermined negative value.