Systems and methods for an externally accessible refueling request switch
First Claim
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1. A method for a vehicle, comprising:
- depressurizing a fuel tank while maintaining a lock coupled to a refueling door in a locked state responsive to receiving a refueling request from a refueling request module located external to a vehicle cabin;
unlocking the refueling door lock responsive to the fuel tank pressure decreasing below a threshold pressure; and
indicating to pull an emergency release cable responsive to the fuel tank not depressurizing below the threshold pressure, wherein the emergency release cable is coupled to a fuel tank isolation valve and the refueling door lock.
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Abstract
A method for a vehicle, comprising: depressurizing a fuel tank while restricting access to a fuel fill line responsive to receiving a refueling request from a refueling request module located external to a vehicle cabin; and allowing access to the fuel fill line responsive to the fuel tank pressure decreasing below a threshold. In this way, all of the steps of a refueling procedure can be carried out entirely outside of a vehicle.
21 Citations
19 Claims
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1. A method for a vehicle, comprising:
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depressurizing a fuel tank while maintaining a lock coupled to a refueling door in a locked state responsive to receiving a refueling request from a refueling request module located external to a vehicle cabin; unlocking the refueling door lock responsive to the fuel tank pressure decreasing below a threshold pressure; and indicating to pull an emergency release cable responsive to the fuel tank not depressurizing below the threshold pressure, wherein the emergency release cable is coupled to a fuel tank isolation valve and the refueling door lock. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A fuel system for a vehicle, comprising:
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a fuel tank; a refueling inlet configured to receive a fuel dispensing nozzle; a fuel fill line coupled between the refueling inlet and the fuel tank; a refueling door located in a body panel of the vehicle and configured to restrict access to the refueling inlet; a refueling lock coupled to the refueling door; a controller configured with instructions stored in non-transitory memory, that when executed, cause the controller to; responsive to the refueling door being displaced inwards, initiate a fuel tank depressurization sequence while maintaining the refueling door locked; and
thenallow access to the fuel fill line responsive to the fuel tank depressurizing below a pressure threshold; and an emergency release cable coupled to a fuel tank isolation valve and the refueling lock; wherein the controller is further configured with instructions stored in non-transitory memory, that when executed, cause the controller to; indicate to pull the emergency release cable responsive to the fuel tank not depressurizing below the pressure threshold. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method for a vehicle, comprising:
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receiving a voltage signal from a potentiometer indicating a refueling request, the refueling request comprising an operator inwardly pressing a refueling door configured to engage the potentiometer; depressurizing a fuel tank while maintaining the refueling door locked; unlocking the refueling door when a fuel tank pressure is below a pressure threshold; receiving a voltage signal from the potentiometer indicating the refueling door is open; receiving a voltage signal from the potentiometer indicating the refueling door is closed; and sealing the fuel tank and locking the refueling door responsive to receiving the voltage signal from the potentiometer indicating the refueling door is closed. - View Dependent Claims (16, 17, 18, 19)
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Specification