Fuel selection method and related system for a mobile asset

1. A method, comprising: adjusting a fuel combustion ratio of a plurality of mobile assets based on a reductant demanded of an aftertreatment device and an emission type exceeding a corresponding threshold, wherein the fuel combustion ratio includes a plurality of fuel types; wherein the fuel ratio is based on amounts of different fuels being delivered to the multi-fuel engine, and wherein the mobile asset comprises separate storage for each of the plurality of fuels; determining a fuel availability of a fuel type in a geofenced location; determining a total emission value for each of a plurality of emission types; adjusting a fuel combustion ratio of one or more of the plurality of mobile assets in response to one or more of the fuel availability and the total emission value;

receiving feedback from a fuel optimizing unit, the fuel optimizing unit monitoring a sensed engine emission level, a fuel usage level, a quantity of fuel used for travel, a remaining quantity of fuel, an engine power output, an engine load, an engine speed, a fuel cost, and a fuel injection profile.

2. The method of claim 1 , wherein the plurality of fuel types includes at least a first fuel and a second fuel, which differs from the first fuel, and wherein the first fuel is a liquid fuel and the second fuel is a gaseous fuel, further comprising adjusting engine operation to supply an amount of unburned reductant from the engine to the aftertreatment device.

3. The method of claim 1 , wherein the plurality of fuel types includes two or more of gasoline, diesel, hydrogenation-derived renewable diesel (HDRD), alcohol, ammonia, biodiesels, hydrogen, natural gas, kerosene, syn-gas, and electricity.

4. The method of claim 2 , wherein adjusting the fuel combustion ratio includes decreasing an amount of a fuel contributing to the emission Page 2 of 12 application Ser. No. 17/450,553 type, further comprising updating a refueling plan based on the adjusted fuel combustion ratio.

5. The method of claim 1 , further comprising maintaining the fuel combustion ratio of one or more mobile assets of the plurality of mobile assets in response to one or more of the mobile assets not contributing to the emission type, a cost associated with adjusting the fuel combustion ratio being less than a predefined threshold cost, a driver demand, and a fuel availability.

6. The method of claim 1 , wherein adjusting the fuel combustion ratio further comprises increasing an amount of lower carbon content fuel relative to a higher carbon content fuel, further comprising updating a power setting plan to comprise the adjusted fuel combustion ratio.

7. The method of claim 1 , wherein the plurality of mobile assets includes one or more of passenger and non-passenger vehicles, hybrid vehicles, off-highway vehicles, on-road vehicles, tracked vehicles, air-borne vehicles, rail vehicles, and marine vessels.

8. A method for a plurality of mobile assets each comprising a multi-fuel engine, the method comprising: determining a fuel availability of a fuel type in a geofenced location; determining a total emission value for each of a plurality of emission types; adjusting a fuel combustion ratio of one or more of the plurality of mobile assets in response to one or more of the fuel availability and the total emission value; updating a refueling plan in response to the adjusted fuel combustion ratio, the refueling plan generated based on one or more of a route information, a fuel market information, and a mobile asset operation information, wherein updating the refueling plan comprises selecting a new refueling station based on a fuel availability onboard the mobile asset, a fuel availability at a fuel station, a fuel consumption, and a fuel price of a fuel consumed by the engine;

wherein the fuel ratio is based on amounts of different fuels being delivered to the multi-fuel engine, and wherein the mobile asset comprises separate storage for each of the plurality of fuels; receiving feedback from a fuel optimizing unit, the fuel optimizing unit monitoring a sensed engine emission level, a fuel usage level, a quantity of fuel used for travel, a remaining quantity of fuel, an engine power output, an engine load, an engine speed, a fuel cost, and a fuel injection profile.

9. The method of claim 8 , wherein the geofenced location comprises one or more of a highway, a city, a park, a school, an uphill, a downhill, a dirt road, a gravel road, a paved road, a neighborhood, a stadium, a mountain pass, and a country road.

10. The method of claim 8 , wherein the total emission value is equal to an amount of a single emission type produced by the plurality of mobile assets operating within the geofenced location.

11. The method of claim 8 , further comprising comparing the total emission value to a corresponding threshold emission value, and wherein the fuel combustion ratio is not adjusted based on the total emission value if the total emission value is less than the corresponding threshold emission value, and wherein the fuel combustion ratio is adjusted based on the total emission value if the total emission value is not less than the corresponding threshold emission value.

12. The method of claim 8 , wherein the fuel availability is based on a number of refueling stations comprising the fuel type, wherein the updated refueling plan is transferred between mobile assets.

13. The method of claim 12 , wherein the fuel availability is further based on a volume of the fuel type contained in a mobile asset, wherein the updated refueling plan comprises new refueling amounts.

14. The method of claim 8 , wherein adjusting the fuel combustion ratio further comprises maintaining or increasing an amount of a secondary fuel relative to a primary fuel, wherein the primary fuel is a carbon-containing fuel, and wherein the secondary fuel is a carbon-free fuel, further comprising adjusting a preferred power setting plan in response the adjusted fuel combustion ratio being more expensive than the fuel combustion ratio.

15. The method of claim 8 , further comprising estimating a cost associated with adjusting the fuel combustion ratio, and updating the adjusted fuel combustion ratio in response to the cost increasing relative to a cost of a previous combustion ratio or to a predefined threshold cost.

16. A method for operating a mobile asset comprising a multifuel engine, the method comprising: operating the mobile asset with a plurality of fuels; and adjusting a fuel ratio of the plurality of fuels based on types of emissions in a geofenced area in which the mobile asset is operating within an availability of fuels in the geofenced area, an operating cost associated with combustion of the plurality of fuels, and an availability of one or more of the plurality of fuels in the geofenced area;

wherein the fuel ratio is based on amounts of different fuels being delivered to the multi-fuel engine, and wherein the mobile asset comprises separate storage for each of the plurality of fuels; receiving feedback from a fuel optimizing unit, the fuel optimizing unit monitoring a sensed engine emission level, a fuel usage level, a quantity of fuel used for travel, a remaining quantity of fuel, an engine power output, an engine load, an engine speed, a fuel cost, and a fuel injection profile.

17. The method of claim 16 , wherein the availability is based on data received from fuel stations and a plurality of mobile assets operating within the geofenced area, and wherein the adjusting includes decreasing a consumption of a first fuel type in response to the availability of the first fuel type being less than a threshold availability and increasing a consumption of a second fuel type in response to the availability of the second fuel type being greater than the threshold availability.

18. The method of claim 16 , further comprising adjusting the fuel ratio in response to wait times at fuel stations.

19. The method of claim 16 , further comprising adjusting the fuel ratio in response to a reductant demand of an aftertreatment device, further comprising adjusting operation of the engine to supply unburned ammonia from the engine to the aftertreatment device.