Patent ID: 8793023

Claim:
A method of controlling an electro-hydraulic actuator system having multiple functions, the method comprising the steps of: receiving, at a controller, input signals corresponding to a desired operation of the functions of the system; determining by the controller an operating limit for the system; determining an operating characteristic of the system by the controller; wherein the controller processes the operating limit and the determined operating characteristic to determine a limitation control factor; and modifying the received input signals with the determined limitation control factor by the controller for operating the system within the established operating limit, wherein the step of determining an operating limit for the system includes the step of determining a power consumption limit, wherein processing the operating limit and the determined operating characteristic to determine a limitation control factor includes the step of dividing the determined power consumption limit by the determined operating characteristic and limiting a result to a value between zero and one, wherein the power consumption limit includes determining the power consumption limit for one of the functions and, the step of determining an operating characteristic of the system includes the steps of calculating a power demand for an electric motor of the one function when actuated with the input signals, calculating an allocated power demand from a charge pump sub-system associated with the one function, and summing the calculated electric motor power demand and the calculated charge pump demand.