Method and systems for storing fuel for reduced usage
First Claim
Patent Images
1. A control system for a vehicle system, comprising:
- a controller configured to;
determine a pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle; and
perform one or more of reducing a pressure of a gaseous component disposed within the fuel tank or adjusting operation of a first engine on board the first vehicle to consume the gaseous component, where the fuel tank is a liquid fuel tank containing liquid fuel and the gaseous component is gaseous fuel, and where the reducing of the pressure of the gaseous component includes stopping vaporizing liquid fuel to gaseous fuel and sending remaining gaseous fuel to the first engine when a supply pressure of the gaseous fuel is greater than a threshold supply pressure.
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Accused Products
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.
31 Citations
11 Claims
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1. A control system for a vehicle system, comprising:
- a controller configured to;
determine a pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle; and
perform one or more of reducing a pressure of a gaseous component disposed within the fuel tank or adjusting operation of a first engine on board the first vehicle to consume the gaseous component, where the fuel tank is a liquid fuel tank containing liquid fuel and the gaseous component is gaseous fuel, and where the reducing of the pressure of the gaseous component includes stopping vaporizing liquid fuel to gaseous fuel and sending remaining gaseous fuel to the first engine when a supply pressure of the gaseous fuel is greater than a threshold supply pressure. - View Dependent Claims (2, 3, 4, 5, 6)
- a controller configured to;
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7. A control system for a vehicle system, comprising:
- a controller configured to;
determine a pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle;
perform one or more of reducing a pressure of a gaseous component disposed within the fuel tank or adjusting operation of a first engine on board the first vehicle to consume the gaseous component; and
adjust one or more valves to allow gaseous fuel to bypass a gaseous fuel supply regulator valve and flow to the first engine on board the first vehicle when a supply pressure of gaseous fuel from the fuel tender is less than a threshold supply pressure and in response to determining the required pressure relief event is needed. - View Dependent Claims (8)
- a controller configured to;
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9. A control system for a vehicle system, comprising:
- a controller configured to;
determine a pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle;
perform one or more of reducing a pressure of a gaseous component disposed within the fuel tank or adjusting operation of a first engine on board the first vehicle to consume the gaseous component; and
decrease a substitution ratio of gaseous fuel to primary fuel at the first engine on board the first vehicle below a demanded ratio when a supply pressure of gaseous fuel from the fuel tender is less than a threshold supply pressure and in response to determining the required pressure relief event is needed.
- a controller configured to;
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10. A control system for a vehicle system, comprising:
- a controller configured to;
determine a pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle;
perform one or more of reducing a pressure of a gaseous component disposed within the fuel tank or adjusting operation of a first engine on board the first vehicle to consume the gaseous component, where the first vehicle and the fuel tender are part of a consist, the consist further including a second vehicle; and
decrease a first throttle setting of the first engine on board the first vehicle in order to reduce an intake manifold pressure below a supply pressure of gaseous fuel and increase a second throttle setting of a second engine on board the second vehicle to compensate for the decreased first throttle setting and produce a demanded torque output for the consist when the supply pressure of the gaseous fuel from the fuel tender is less than a threshold supply pressure and in response to determining the required pressure relief event is needed.
- a controller configured to;
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11. A control system for a vehicle system, comprising:
- a controller configured to;
determine a pressure relief event is needed for a fuel tank on a fuel tender coupled to a first vehicle; and
perform one or more of reducing a pressure of a gaseous component disposed within the fuel tank or adjusting operation of a first engine on board the first vehicle to consume the gaseous component, where the controller is coupled to an automatic engine start stop (AESS) device configured to restart the first engine to consume the gaseous component in response a vapor space pressure of the fuel tank increasing above a threshold level.
- a controller configured to;
Specification