CONTROLLER FOR ENGINE AND VARIABLE DISPLACEMENT HYDRAULIC PUMP

摘要

A controller for an engine and a hydraulic pump which includes first detection means (7A) for detecting a lever operation speed and control means (10) for outputting a command for controlling a revolution speed of the engine to an injection pump (1A) and/or a command for controlling a discharge capacity of the hydraulic pump (2) to a regulator (2A) so that, on receiving a signal from the first detection means (7A) in accordance with an operation speed of the lever operated, a work machine is operated at a speed in accordance with an operation speed of the lever operated, in order that a fuel efficiency of the engine and an efficiency of the hydraulic pump match with each other at a point having an optimum efficiency according to an absorption torque required by the hydraulic pump.