Patent ID: 9032724
Filing Date: 2015-05-19
Classification: E02F,F15B

Abstract:
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) calculating an allocation pump bias for each of the plurality of hydraulic actuators, the allocation pump bias being calculated using a flow allocation gain for each of the plurality of hydraulic actuators; (c) for a given one of the plurality of hydraulic actuators: (d) determining a maximum power level for a prime mover that drives the first and second pumps; (e) defining a power limit flow function using at least a fluid flow level producible by the first pump and a fluid flow level producible by the second pump; (f) determining if the plurality of flow commands exceeds the power limit flow function; (g) operating the first pump in response to the first flow level; and (h) operating the second pump in response to the second flow level.