Method of operating a fluid working machine
AssigneeSauer-Danfoss ApS
InventorsOnno Kuttler, Ken Kin-ho Lai
Life of this patent
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Abstract
When the fluid flow output of a synthetically commutated hydraulic pump is adapted to a given fluid flow demand, pulsations in the fluid output flow of the synthetically commutated hydraulic pump can occur. To avoid such pressure pulsations, it is suggested, to use a set of pre-calculated actuation patterns for actuating the electrically commutated valves of the synthetically commutated hydraulic pump.
Claims14
A method of operating a fluid working machine, comprising at least one working chamber of cyclically changing volume, a high-pressure fluid connection, a low-pressure fluid connection and at least one electrically actuated valve connecting said working chamber to said high-pressure fluid connection and/or said low-pressure fluid connection, wherein the actuation of at least one of said electrically actuated valves is chosen depending on the fluid flow demand, wherein the actuation pattern of said electrically actuated valve is chosen from a set of pre-calculated actuation patterns.
Dependencies are inferred from the claim text.