A system is provided for controlling a powered unit having an engine configured to operate using a plurality of fuel types each in a corresponding fuel tank. The system includes a controller operable to transmit a first set of control signals including a first set of valve signals to the each fuel t
A system is provided for controlling a powered unit having an engine configured to operate using a plurality of fuel types each in a corresponding fuel tank. The system includes a controller operable to transmit a first set of control signals including a first set of valve signals to the each fuel tank based at least in part on a first stored engine operating profile to control amounts of fuel from each fuel tank to the engine. The controller can transmit a second set of control signals including a second set of valve signals to each fuel tank based at least in part on a second stored engine operating profile to control amounts of fuel from each fuel tank to the engine. Further, the controller can switch, by transmitting either the first set of control signals or the second set of control signals, between a first operating condition associated with a first external domain and a second condition associated with a second external domain. The first operating condition is associated with the first stored engine operating profile, and the second operating condition is associated with the second stored engine operating profile.
대표청구항▼
1. A system for controlling a powered unit having an engine configured to operate using a plurality of fuel types each in a corresponding fuel tank, the system comprising: a controller operable to:transmit a first set of control signals including a first set of valve signals to each fuel tank based
1. A system for controlling a powered unit having an engine configured to operate using a plurality of fuel types each in a corresponding fuel tank, the system comprising: a controller operable to:transmit a first set of control signals including a first set of valve signals to each fuel tank based at least in part on a first stored engine operating profile to control amounts of fuel from each fuel tank to the engine;transmit a second set of control signals including a second set of valve signals to each fuel tank based at least in part on a second stored engine operating profile to control the amounts of fuel from each fuel tank to the engine; andswitch, by transmitting either the first set of control signals or the second set of control signals, between a first operating condition associated with a first external domain and a second condition associated with a second external domain, wherein the first operating condition is associated with the first stored engine operating profile, and the second operating condition is associated with the second stored engine operating profile. 2. The system of claim 1, wherein the first and second external domains comprise one or more of geographical location, exhaust emission level, ambient condition, operational demand, fuel external availability, on-board fuel supply, equipment health status, mission criticality, or fuel characteristics. 3. The system of claim 2, wherein the first and second external domains comprise at least one geographic location, and wherein the system further comprises a position location device selected from a global position system, a wayside device, and an inertial guidance system. 4. The system of claim 3, wherein the first and second external domains further comprise at least one of one or more exhaust emission levels or one or more ambient conditions and are based at least in part on emissions regulations coupled with the at least one geographic location, engine exhaust characteristics, barometric pressure, air temperature, smog or ozone levels, and weather conditions. 5. The system of claim 3, wherein the first and second external domains further comprise one or more operational demands that require the powered unit to be in a determined place at a determined time, and the controller is further operable to calculate a current time, a distance from a current location to the determined place, and a required speed of travel over the distance to arrive at the determined place at the determined time. 6. The system of claim 3, wherein the first and second external domains further comprise at least one fuel external availability including a re-supply availability on an upcoming selected path of the powered unit for at least one of the plurality of fuel types. 7. The system of claim 3, wherein the first and second external domains comprise an amount of each fuel available on the powered system, wherein the controller is configured to control display of the amount of each fuel available as available fuel volume, available fuel energy content, or in terms of hours of availability before fuel exhaustion. 8. The system of claim 3, wherein the first and second external domains comprise at least one equipment health status based at least in part on a measured performance of the powered unit, an estimated performance of the powered unit, or a combination of the measured performance of the powered unit and the estimated performance of the powered unit. 9. The system of claim 8, wherein the measured performance include values for wear on fuel injectors for the engine or an available flow rate of natural gas from a fuel tender coupled to the engine. 10. The system of claim 8, wherein the estimated performance is based at least in part on a calculation involving a known age of a component of the powered unit, or a known use profile of the component. 11. The system of claim 3, wherein the first and second external domains comprise at least one mission criticality value. 12. The system of claim 11, wherein the at least one mission criticality value is based at least in part on a path that the powered unit is anticipated to travel during operation or on a type of goods intended to be transported by the powered unit. 13. The system of claim 3, wherein the first and second external domains comprise one or more fuel characteristics, and the fuel characteristics include one or more of operational effects of each of the plurality of fuel types, relative energy content of each of the plurality of fuel types, and purity of each of the plurality of fuel types. 14. The system of claim 13, wherein the fuel types include two or more of natural gas, gasoline, ethanol, hydrogen, bio-diesel, kerosene, and diesel. 15. The system of claim 13, wherein the controller is further operable to switch from the first operating condition to the second operating condition to use more of a fuel type that causes relatively less wear for the engine. 16. The system of claim 15, wherein the controller is further operable to respond by initiating the switch at least in part based on a mission criticality value. 17. A method for controlling a powered unit having an engine configured to operate on a plurality of fuel types, comprising: transmitting a first set of control signals to a plurality of fuel tanks based at least in part on a first stored engine operating profile to control amounts of fuel flowing from each of the plurality of fuel tanks to the engine;transmitting a second set of control signals to a plurality of fuel tanks based at least in part on a second stored engine operating profile to control the amounts of fuel flowing from each of the plurality of fuel tanks to the engine; andswitching between a first operating condition associated with a first external domain and the first stored engine operating profile and a second operating condition associated with a second external domain and the second stored engine operating profile. 18. The method of claim 17, wherein the powered unit comprises a first powered unit that is part of a consist comprising at least the first powered unit and a second powered unit, and wherein the method further comprises responding to a signal indicative of the health of the first powered unit by reconfiguring the second powered unit in the consist to operate at a different peak power level. 19. The method of claim 17, further comprising blending two or more of the plurality of fuel types in the engine. 20. A controller for a powered unit having an engine configured to operate on a plurality of fuel types, comprising: means for transmitting a first set of control signals to a plurality of fuel tanks based at least in part on a first stored engine operating profile to control amounts of fuel flowing from each of the plurality of fuel tanks to the engine;means for transmitting a second set of control signals to a plurality of fuel tanks based at least in part on a second stored engine operating profile to control amounts of fuel flowing from each of the plurality of fuel tanks to the engine; andthe controller being operable to switch between a first operating condition associated with a first external domain and the first stored engine operating profile and a second operating condition associated with a second external domain and the second stored engine operating profile.
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