Patent ID: 9388828
Filing Date: 2016-07-12
CPC Classification: E02F,F15B

Claim Text:
1. A hydraulic control system, comprising: a tank; a pump configured to draw fluid from the tank and pressurize the fluid; a swing motor driven by a flow of pressurized fluid from the pump; at least one control valve configured to control fluid flow between the pump, the swing motor, and the tank; an accumulator configured to selectively receive pressurized fluid discharged from the swing motor and selectively supply pressurized fluid to the swing motor; a charge valve movable from a closed position to an open position to selectively allow fluid flow from the swing motor into the accumulator; a discharge valve movable from a closed position to an open position to selectively allow fluid flow from the accumulator to the swing motor; and a controller in communication with the at least one control valve, the charge valve, and the discharge valve, the controller being configured to: