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US 2016/0096427 A1Published application
Capless refueling system cleaning using engine vacuum
AssigneeFord Global Technologies, LLC
InventorsAed M. Dudar, Robert Roy Jentz, Scott A. Bohr, Russell Randall Pearce
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Abstract
Methods and systems for cleaning a capless refueling system in a vehicle are disclosed. In one example approach, a method comprises, in response to a leak detected following a refueling event, cleaning the capless refueling system using engine vacuum.
Claims19
A method, comprising:
- in response to a leak detected following a refueling event in a vehicle with a chassis, wheels, an internal combustion engine, and a capless refueling system, cleaning the capless refueling system using vacuum by adjusting a valve to apply the vacuum to the capless refueling system, the adjusting the valve performed responsive to the leak detected following the refueling event.
A method for a vehicle with an internal combustion engine and a capless refueling system, comprising:
- providing vacuum from an intake of the engine to the capless refueling system by adjusting first and second valves in response to a leak detected in the capless refueling system following a refueling event.
A method for a vehicle with an internal combustion engine and an emission control system, comprising:
- in response to a leak detected in a capless refueling unit coupled to the emission control system following a refueling event, isolating the emission control system from the atmosphere and providing vacuum to the capless refueling unit for a duration, the vacuum provided by adjusting first and second valves responsive to detecting the leak.
Dependencies are inferred from the claim text.