HYDRAULIC SYSTEM FOR MACHINE

• Main Author: BLUM DARREN A
• Format: Patent
• Language: English
• Published: 19.02.2015
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; DREDGING; FIXED CONSTRUCTIONS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; FOUNDATIONS; HEATING; HYDRAULIC ENGINEERING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SOIL SHIFTING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

A hydraulic system for a machine is disclosed. The system includes an actuator configured to move a portion of the machine, a pump configured to supply pressurized fluid to the actuator, an accumulator fluidly coupled to the actuator, a valve arrangement configured to selectively direct the fluid discharged from the actuator to the accumulator for storage and to selectively direct the stored fluid from the accumulator to the actuator, and a controller. The controller is configured to determine an accumulator pressure, an actuator pressure, and an operational parameter associated with an implement system. Further, the controller is configured to determine an accumulator control mode. The controller determines an accumulator pressure leakage rate when the accumulator control mode is neutral.