Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system can control and test the liquid and gaseous fuel systems.

Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system can control and test the liquid and gaseous fuel systems.

Abstract: A system, in a vehicle consist configured for dual fuel operation and comprising at least one fuel car operably connectable to at least one powered vehicle via a fuel distribution path, includes an energy management processing unit. The energy management processing unit is configured to obtain a first cost of a first fuel, obtain a second cost of a second fuel, and determine a proportional ratio of the first fuel and the second fuel for each of plural power settings available for use during performance of a mission along a route. The energy management processing unit is also configured to determine a trip plan specifying power settings for corresponding plural sections of the route to perform the mission using the first cost, the second cost, and the proportional ratio for the power settings to optimize a total combined cost of fuel used during performance of the mission.

Abstract: A system, in a vehicle consist configured for dual fuel operation and comprising at least one fuel car operably connectable to at least one powered vehicle via a fuel distribution path, includes an energy management processing unit. The energy management processing unit is configured to obtain a first cost of a first fuel, obtain a second cost of a second fuel, and determine a proportional ratio of the first fuel and the second fuel for each of plural power settings available for use during performance of a mission along a route. The energy management processing unit is also configured to determine a trip plan specifying power settings for corresponding plural sections of the route to perform the mission using the first cost, the second cost, and the proportional ratio for the power settings to optimize a total combined cost of fuel used during performance of the mission.

Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system can control and test the liquid and gaseous fuel systems.

Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system, during a gaseous fuel system test mode, controls the liquid fuel system and the gaseous fuel system to deliver the liquid fuel and the gaseous fuel to the engine over a range of engine operating points, and indicate degradation of the gaseous fuel system based on engine output at each of the engine operating points.

Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system, during a gaseous fuel system test mode, controls the liquid fuel system and the gaseous fuel system to deliver the liquid fuel and the gaseous fuel to the engine over a range of engine operating points, and indicate degradation of the gaseous fuel system based on engine output at each of the engine operating points.

Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system, during a gaseous fuel system test mode, controls the liquid fuel system and the gaseous fuel system to deliver the liquid fuel and the gaseous fuel to the engine over a range of engine operating points, and indicate degradation of the gaseous fuel system based on engine output at each of the engine operating points.

Abstract: A system, in a vehicle consist configured for dual fuel operation and comprising at least one fuel car operably connectable to at least one powered vehicle via a fuel distribution path, includes an energy management processing unit. The energy management processing unit is configured to obtain a first cost of a first fuel, obtain a second cost of a second fuel, and determine a proportional ratio of the first fuel and the second fuel for each of plural power settings available for use during performance of a mission along a route. The energy management processing unit is also configured to determine a trip plan specifying power settings for corresponding plural sections of the route to perform the mission using the first cost, the second cost, and the proportional ratio for the power settings to optimize a total combined cost of fuel used during performance of the mission.

Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system, during a gaseous fuel system test mode, controls the liquid fuel system and the gaseous fuel system to deliver the liquid fuel and the gaseous fuel to the engine over a range of engine operating points, and indicate degradation of the gaseous fuel system based on engine output at each of the engine operating points.

Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system, during a gaseous fuel system test mode, controls the liquid fuel system and the gaseous fuel system to deliver the liquid fuel and the gaseous fuel to the engine over a range of engine operating points, and indicate degradation of the gaseous fuel system based on engine output at each of the engine operating points.

Abstract: A method involves comparing a determined operating parameter of an engine, with a predefined operating parameter. The method further involves controlling a fuel source and an ignition source of the engine so as to operate at least one engine cylinder in a skip fire mode for at least one cycle of a crank shaft when the determined operating parameter is greater than the predefined operating parameter. The controlling involves transitioning the fuel source from a normal mode to the skip fire mode for the at least one cycle of the crank shaft either before transitioning the ignition source from the normal mode to the skip fire mode or when the ignition source is operated in the normal mode.

Abstract: Various methods and systems are provided for initiating and executing a fuel routine for reducing a pressure of gaseous fuel in a gaseous fuel system for a vehicle. In one embodiment, a control system for a vehicle comprises a controller operable to: determine a required pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle; and communicate a request to reduce a pressure of a gaseous component disposed within the fuel tank or adjust operation of a first engine on board the first vehicle to consume the gaseous component.

Abstract: A method involves comparing a determined operating parameter of an engine, with a predefined operating parameter. The method further involves controlling a fuel source and an ignition source of the engine so as to operate at least one engine cylinder in a skip fire mode for at least one cycle of a crank shaft when the determined operating parameter is greater than the predefined operating parameter. The controlling involves transitioning the fuel source from a normal mode to the skip fire mode for the at least one cycle of the crank shaft either before transitioning the ignition source from the normal mode to the skip fire mode or when the ignition source is operated in the normal mode.

Abstract: Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system, during a gaseous fuel system test mode, controls the liquid fuel system and the gaseous fuel system to deliver the liquid fuel and the gaseous fuel to the engine over a range of engine operating points, and indicate degradation of the gaseous fuel system based on engine output at each of the engine operating points.

Abstract: A system, in a vehicle consist configured for dual fuel operation and comprising at least one fuel car operably connectable to at least one powered vehicle via a fuel distribution path, includes an energy management processing unit. The energy management processing unit is configured to obtain a first cost of a first fuel, obtain a second cost of a second fuel, and determine a proportional ratio of the first fuel and the second fuel for each of plural power settings available for use during performance of a mission along a route. The energy management processing unit is also configured to determine a trip plan specifying power settings for corresponding plural sections of the route to perform the mission using the first cost, the second cost, and the proportional ratio for the power settings to optimize a total combined cost of fuel used during performance of the mission.

Abstract: Various methods and systems are provided for modifying a fuel volume of a fuel container based on fuel consumption. In one embodiment, a method comprises storing an initial fuel volume measurement for a fuel container of a first rail vehicle and modifying the initial fuel volume measurement based on fuel consumption of an engine of a second rail vehicle to determine a modified fuel volume.

Abstract: Various methods and systems are provided for initiating and executing a fuel routine for reducing a pressure of gaseous fuel in a gaseous fuel system for a vehicle. In one embodiment, a control system for a vehicle comprises a controller operable to: determine a required pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle; and communicate a request to reduce a pressure of a gaseous component disposed within the fuel tank or adjust operation of a first engine on board the first vehicle to consume the gaseous component.