Patent ID: 7835930
Filing Date: 2010-11-16
Classification: G06Q

Abstract:
1. A method of converting a resource into a product, wherein the resource and the product are each represented by a time-dependent property (P IN , C fuel ; P OUT , P Price ) equivalent to an objective quantity per unit of measure, wherein a performance of a system converting the resource into the product is represented by an efficiency measure (η), and wherein the performance is degrading continuously and can be increased by a maintenance action applied to the system, wherein the method comprises: a) introducing a state variable (δ b) providing an initial value for the efficiency measure (η(t c) providing, for N d) setting up an objective function F including a change in accumulation of the objective quantity at the system related to the degradation in performance of the engine, and based on the maintenance expenditure (C e) minimizing the objective function F with respect to the state variable (δ wherein steps a) through e) are performed in a computer.