A system includes an engine and a controller. The engine is capable of multiple operating modes, and each mode has a relatively different fuel ratio such that as the engine is changed from a first operating mode having a first ratio of a first fuel to a second fuel to a second operating mode having
A system includes an engine and a controller. The engine is capable of multiple operating modes, and each mode has a relatively different fuel ratio such that as the engine is changed from a first operating mode having a first ratio of a first fuel to a second fuel to a second operating mode having a second ratio of the first fuel to the second fuel. The controller is operable to change the engine from one operating mode to another operating mode.
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1. A system, comprising: an engine that is capable of multiple operating modes, wherein the engine consumes different ratios of two or more different fuels when the engine operates in different modes of the multiple operating modes such that , when the engine operates in a first operating mode, the
1. A system, comprising: an engine that is capable of multiple operating modes, wherein the engine consumes different ratios of two or more different fuels when the engine operates in different modes of the multiple operating modes such that , when the engine operates in a first operating mode, the engine is configured to consume a first ratio of a first fuel to a second fuel and, when the engine operates in a different, second operating mode, the engine is configured to consume a different, second ratio of the first fuel to the second fuel; anda controller operable to change the engine between the first operating mode and the second operating mode,wherein the controller is operable to control the engine according to a first trip plan and the controller is configured to change at least one of the first ratio or the second ratio during movement of a vehicle that includes the engine by applying weighted coefficients to amounts of each of the first and second fuel types in the first ratio and in the second ratio. 2. The system of claim 1, wherein the first fuel comprises diesel-based fuel and the second fuel comprises natural gas. 3. The system of claim 1, wherein at least one of the first fuel or the second fuel comprises methane gas. 4. The system of claim 1, wherein at least one of the first fuel or the second fuel comprises biodiesel, palm oil, or rapeseed oil. 5. The system of claim 1, wherein at least one of the first fuel or the second fuel comprises ethanol. 6. The system of claim 1, wherein the controller is operable to change the operating mode of the engine based at least in part on characteristic information for at least one of the first and second fuels, and the characteristic information including at least one of fuel efficiency of the engine, emissions generated by the engine, relative fuel costs, or fuel location availability. 7. The system of claim 1, wherein the weighted coefficients for the first and second fuel types depend on at least one of a respective emission rate, fuel cost, fuel reliability, fuel energy density, respective fuel tank volume, or fuel location availability of the first and second fuels. 8. The system of claim 1, wherein the first trip plan or said different, second trip plan comprises a plurality of segments, and the coefficient weighting for at least one of the first fuel or the second fuel in one respective segment differs from the coefficient weighting for the at least one of the first fuel or the second fuel in another respective segment. 9. The system of claim 1, wherein the engine is operable to propel the vehicle; and the controller is operable to control at least one of the vehicle or the engine according to the first trip plan that minimizes or reduces the amount consumed of each type of fuel, relative to operation of the vehicle or engine without the first trip plan, in accordance with an operational criteria of the vehicle, the operational criteria comprising at least one emission rate limit. 10. The system of claim 1, wherein the engine is operable to propel the vehicle, the controller is operable to control at least one of the engine or the vehicle according to the first plan, and the controller is operable to respond to an autonomous update to the first trip plan as the vehicle progresses on a trip. 11. The system of claim 1, further comprising a locator device to determine a location of the vehicle propelled by the engine, and the locator device is configured to communicate the location of the vehicle to the controller so that the controller can change the operating mode based, at least in part, on the location of the vehicle. 12. The system of claim 11, wherein the controller is configured to change the operating mode based, at least in part, on one or more of an ambient pressure, an ambient temperature, or a rate of change in a grade of a route being traveled by the vehicle. 13. The system of claim 1, wherein the controller is operable to communicate with a user interface element to selectively display one or more of: a respective future anticipated mileage remaining for each of the first and second fuels;a cost savings calculated based on predicted consumption of each of the first and second fuels available to the engine at a determined fuel ratio; oran emissions value based on predicted emission amounts at a determined fuel ratio for one or more of NOx, SOx, hydrocarbons, carbon dioxide, carbon monoxide, or particulate matter (PM). 14. The system of claim 1, wherein the controller is operable to adjust one or both of the first ratio or the second ratio based on one or more of fuel availability, time of use of one or more of the first fuel or the second fuel, date of the use of the one or more of the first fuel or the second fuel, power requirements of the vehicle, geographically agnostic emissions requirements, local emissions requirements, or relative fuel costs. 15. The system of claim 1, wherein the engine receives the first fuel and the second fuel from respective fuel tanks. 16. The system of claim 1, wherein the controller is operable to control the engine according to a first trip plan, wherein control of the engine according to the first trip plan at least one of reduces or minimizes an amount of at least one of the first fuel or the second fuel consumed or reduces or minimizes a total amount of emissions released relative to operation of the engine without the first trip plan. 17. The system of claim 16, wherein reducing the total amount of emissions released or fuel consumed comprises minimizing a weighted sum having weighted coefficients of each respective emission output for each of the first and second fuels, and determining each respective weighted coefficient for the first trip plan that reduces or minimizes the total emission output or fuel consumed of each of the first and second fuels. 18. The system of claim 1, wherein at least one of the first fuel or the second fuel comprises at least one of methanol or butanol. 19. The system of claim 1, wherein the controller is configured to change the the first ratio and the second ratio by changing the weighted coefficient of the first fuel based on a first emission rate of the first fuel and changing the weighted coefficient of the second ratio based on a second emission rate of the second fuel, wherein the controller is configured to change the operating mode of the engine based on an ambient pressure, andwherein the controller is configured to change one or more of the first ratio or the second ratio responsive to a user of the vehicle selecting a user-selected fuel ratio of the first fuel to the second fuel. 20. A method comprising: implementing a first engine operating mode of a vehicle based on characteristic information for each of at least two different fuels and operational criteria for the vehicle, wherein the first engine operating mode dictates a first fuel ratio of at least a first fuel to a second fuel of the at least two different fuels that is to be supplied to an engine of the vehicle;implementing a different, second engine operating mode at a different time based on the characteristic information and the operational criteria, the second engine operating mode dictating a different, second fuel ratio of at least the first fuel to the second fuel that is to be supplied to the engine;controlling the engine according to a first trip plan; andadjusting at least one of the first fuel ratio or the second fuel ratio during movement of the vehicle according to the first trip plan by applying weighted coefficients to amounts of each of the first and second fuels in the first ratio and in the second ratio. 21. The method of claim 20, wherein the characteristic information for each of the at least two different fuels comprises at least one of fuel efficiency of the engine, emissions generated by the engine, relative fuel costs, or fuel location availability at a fueling station for the vehicle. 22. The method of claim 20, further comprising minimizing a total amount of fuel consumed of the at least two different fuels by the vehicle by dynamically selecting a fuel ratio of one of the fuels relative to another of the fuels. 23. The method of claim 22, wherein the minimizing the total amount of fuel consumed comprises changing the weighted coefficients of each respective one of the fuels consumed during movement of the vehicle. 24. A method, comprising: controlling a fuel system to concurrently supply a first fuel at a first flow volume and a second fuel at a second flow volume to an engine to define an initial fuel ratio;changing the first flow volume, the second flow volume, or both the first and second flow volumes to define a subsequent fuel ratio at which the first fuel and the second fuel are concurrently supplied to the engine in response to a change in a power demand on the engine or in a speed of the engine;controlling the engine according to a first trip plan; andadjusting at least one of the initial fuel ratio or the subsequent fuel ratio during movement of a vehicle that includes the engine. 25. A method, comprising: controlling a fuel system to concurrently supply a first fuel at a first flow volume and a second fuel at a second flow volume to an engine to define an initial fuel ratio;changing the first flow volume, the second flow volume, or both the first and second flow volumes to define a subsequent fuel ratio at which the first fuel and the second fuel are concurrently supplied to the engine in response to a change in a location of the engine;controlling the engine according to a first trip plan; andadjusting at least one of the initial fuel ratio or the subsequent fuel ratio over a defined trip by applying weighted coefficients to each of the first and second fuels during movement of a vehicle that includes the engine according to the first trip plan. 26. A method, comprising: receiving a control input responsive to a first trip plan for a vehicle from a user interface that is configured to display aspects of the first trip plan to a user;controlling a fuel system of the vehicle automatically based on the control input to supply a first fuel to an engine and to concurrently supply a different, second fuel to the engine, and the engine is operable to propel the vehicle using the first fuel and the second fuel, the control input is generated responsive to manipulation of the user interface, the control input comprising at least one of: a first signal that indicates a user-selected throttle setting for the vehicle, and the fuel system is automatically controlled to supply a combination of the first and second fuels to the engine based at least in part on the throttle setting, wherein a first ratio of the first fuel to the second fuel that is supplied to the engine in the combination changes for different user-selected throttle settings; ora second signal that indicates a user-selected fuel ratio of the first fuel relative to the second fuel, and the fuel system is automatically controlled to supply the combination of the first and second fuels at the user-selected fuel ratio to the engine, wherein the first ratio of the first fuel to the second fuel that is supplied to the engine in the combination changes for different user-selected fuel ratios;controlling the engine according to a first trip plan; andadjusting at least one of the first fuel ratio or the user-selected fuel ratio over a defined trip by applying weighted coefficients to each of the first and second fuels, and by applying the weighted coefficients to the first trip plan or a different, second trip plan.
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