Methods and systems for determining performance characteristics of mechanical systems based on fuel properties

• US 8,825,361 B1
• Filed: 10/10/2011
• Issued: 09/02/2014
• Est. Priority Date: 10/10/2011
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Bernhardt, Roger
• Primary Examiner(s): Shafi, Muhammad
• Application Number:
  US13/269,861
• Time in Patent Office: 1,058 Days
• Field of Search: 701 96-115, 701/538, 701/123, 702/22, 702/32, 702/104, 702/109, 702/116, 700/241, 141/9, 141/94, 141/104, 141/105, 141/107, 141/234, 141/285, 141/301, 141/302
• US Class Current: 701/123
• CPC Class Codes: G01N 33/2882 Markers marking of fuels C10L1/003

Abstract

Methods and systems for use in determining one or more performance characteristics of a mechanical system that includes a combustion engine. One or more values of a physical property of fuel are associated with a performance characteristic (e.g., an operating characteristic and/or a maintenance characteristic) of a mechanical system to create a fuel-performance relationship. An actual value of the physical property of a fuel to be burned by the combustion engine is determined using one or more sensors. A predicted value of the performance characteristic is determined based on the actual value of the physical property and the fuel-performance relationship.

Claims

1. A system for use in determining one or more performance characteristics of a mechanical system that includes a combustion engine, said system comprising:

a memory for storing a fuel-performance relationship that associates one or more values of a physical property of fuel with a performance characteristic of a mechanical system, wherein the performance characteristic includes one or more of the following;

an operating characteristic and a maintenance characteristic;

a sensor configured to produce a signal representing one or more of the following;

a physical fuel property and an identifier of a fuel; and

a processor coupled to said memory and said sensor, wherein said processor is programmed to;

determine an actual value of a physical property of the fuel by decoding one or more codes of one or more taggants within the fuel, based on the signal produced by the sensor; and

determine a predicted value of the performance characteristic based on the actual value of the physical property and the fuel-performance relationship.

2. A system in accordance with claim 1, wherein said processor is programmed to determine a predicted value of the performance characteristic by determining a predicted value of a maintenance characteristic including one or more of the following:

mechanical wear per unit of fuel and deterioration per unit of fuel.

3. A system in accordance with claim 1, wherein said processor is programmed to determine a predicted value of the performance characteristic by determining a predicted value of an operating characteristic including one or more of the following:

an operating speed, an operating range, an engine output per unit of fuel, and a mechanical system output per unit of fuel.

4. A system in accordance with claim 1, wherein said memory stores a fuel-performance relationship by storing a lookup table associating a plurality of values of one or more physical properties of fuel with a plurality of values of one or more performance characteristics of the mechanical system, and said processor is programmed to determine the predicted value of the performance characteristic by selecting a value of the performance characteristic from the lookup table based on the actual value of the physical property.

5. A system in accordance with claim 1, wherein said memory stores a fuel-performance relationship by storing a transfer function relating one or more physical properties of fuel to the performance characteristic of the mechanical system, and said processor is programmed to determine the predicted value of the performance characteristic by calculating the value of the performance characteristic based on the transfer function and the actual value of the physical property.

6. A system in accordance with claim 1, wherein said processor is programmed to determine an actual value of the physical property by determining one or more of the following:

an energy density of the fuel, a stability of the fuel, a lubricity of the fuel, an acidity of the fuel, and a heat capacity of the fuel.

7. A system in accordance with claim 1, wherein said sensor is further configured to:

detect an identifier that is encoded in the one or more taggants within the fuel; and

produce a signal representing the detected identifier,

wherein said processor is programmed to determine an actual value of the physical property of the fuel by retrieving a physical property from a database based on the detected identifier.

8. A method for use in determining one or more performance characteristics of a mechanical system that includes a combustion engine, said method being implemented by a computing device including a processor coupled to a memory, said method comprising:

associating, by the computing device, one or more values of a physical property of fuel with a performance characteristic of a mechanical system to create a fuel-performance relationship, wherein the performance characteristic includes one or more of the following;

an operating characteristic and a maintenance characteristic;

determining, by the computing device, using one or more sensors in the mechanical system, an actual value of the physical property of a fuel to be burned by the combustion engine by decoding one or more codes of one or more taggants within the fuel; and

determining, by the computing device, a predicted value of the performance characteristic based on the actual value of the physical property and the fuel-performance relationship.

9. A method in accordance with claim 8, wherein determining the predicted value of the performance characteristic comprises determining a predicted value of a maintenance characteristic including one or more of the following:

mechanical wear per unit of fuel and deterioration per unit of fuel.

10. A method in accordance with claim 8, wherein determining the predicted value of the performance characteristic comprises determining a predicted value of an operating characteristic including one or more of the following:

an operating speed, an operating range, an engine output per unit of fuel, and a mechanical system output per unit of fuel.

11. A method in accordance with claim 8, wherein creating a fuel-performance relationship comprises creating a lookup table associating a plurality of values of one or more physical properties of fuel with a plurality of values of one or more performance characteristics of the mechanical system.

12. A method in accordance with claim 8, wherein creating a fuel-performance relationship comprises defining a transfer function relating one or more physical properties of fuel to the performance characteristic of the mechanical system.

13. A method in accordance with claim 8, wherein determining an actual value of the physical property comprises determining one or more of the following:

an energy density of the fuel, a stability of the fuel, a lubricity of the fuel, an acidity of the fuel, and a heat capacity of the fuel.

14. A method in accordance with claim 8, wherein determining an actual value of the physical property comprises determining an actual value of the physical property by scanning the one or more taggants within the fuel using at least one of an optical sensor and a spectroscopic sensor.

15. A method in accordance with claim 8, wherein determining an actual value of the physical property further comprises:

decoding an identifier encoded in the one or more taggants within the fuel; and

retrieving a physical property from a database based on the decoded identifier.

16. One or more non-transitory computer-readable media having computer-executable components embodied thereon, said computer-executable components comprising:

a property determination component that when executed by at least one processor unit causes the processor unit to determine an actual value of a physical property of a fuel based on a signal produced by a sensor configured to detect one or more codes of one or more taggants within the fuel; and

a performance prediction component that when executed by at least one processor unit causes the processor unit to;

associate one or more values of a physical property of fuel with a performance characteristic of a mechanical system to create a fuel-performance relationship, wherein the performance characteristic includes one or more of the following;

an operating characteristic and a maintenance characteristic; and

determine a predicted value of the performance characteristic based on the actual value of the physical property and the fuel-performance relationship.

17. One or more non-transitory computer-readable media in accordance with claim 16, wherein said performance prediction component causes the processor to determine a predicted value of the performance characteristic at least in part by determining a predicted value of a maintenance characteristic including one or more of the following:

mechanical wear per unit of fuel and deterioration per unit of fuel.

18. One or more non-transitory computer-readable media in accordance with claim 16, wherein said performance prediction component causes the processor to determine a predicted value of the performance characteristic at least in part by determining a predicted value of an operating characteristic including one or more of the following:

an operating speed, an operating range, an engine output per unit of fuel, and a mechanical system output per unit of fuel.

19. One or more non-transitory computer-readable media in accordance with claim 16, wherein said performance prediction component creates a fuel-performance relationship at least in part by creating a lookup table associating a plurality of values of one or more physical properties of fuel with a plurality of values of one or more performance characteristics of the mechanical system.

20. One or more non-transitory computer-readable media in accordance with claim 16, wherein said performance prediction component creates a fuel-performance relationship at least in part by creating a transfer function relating one or more physical properties of fuel to the performance characteristic of the mechanical system.