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COMMAND BASED METHOD FOR ALLOCATING FLUID FLOW FROM A PLURALITY OF PUMPS TO MULTIPLE HYDRAULIC FUNCTIONS

  • US 20110308242A1
  • Filed: 06/13/2011
  • Published: 12/22/2011
  • Est. Priority Date: 06/21/2010
  • Status: Active Grant
First Claim
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1. A method for allocating flow of fluid from first and second pumps to a plurality of hydraulic actuators, said method comprising steps of:

  • (a) producing a plurality of flow commands, each of which specifies an amount of flow desired to be applied to a different one of the plurality of hydraulic actuators;

    (b) for a given one of the plurality of hydraulic actuators;

    (1) using all of the plurality of flow commands to determine a first portion of the amount of flow specified by the flow command for the given hydraulic actuator which is to be provided by the first pump and to determine a second portion of the amount of flow specified by the flow command for the given hydraulic actuator which is to be provided by the second pump,(2) deriving a first flow level in response to the first portion and the flow command for the given hydraulic actuator, and(3) deriving a second flow level in response to the second portion and the flow command for the given hydraulic actuator;

    (c) operating the first pump in response to the first flow level; and

    (d) operating the second pump in response to the second flow level.

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