Invention Grant
- Patent Title: System and methods for preventing premature refueling shutoff
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Application No.: US14938565Application Date: 2015-11-11
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Publication No.: US09732685B2Publication Date: 2017-08-15
- Inventor: Aed M. Dudar
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: McCoy Russell LLP
- Agent James Dottavio
- Main IPC: F02M25/08
- IPC: F02M25/08 ; F02D41/00 ; B60K15/035

Abstract:
Methods and systems are provided for conducting a refueling operation. In one example, during the refueling event, fuel vapors may be routed from a fuel tank to a first fuel vapor canister, and upon indication that the first fuel vapor canister is saturated with hydrocarbons, fuel vapors may be routed from the fuel tank to a second fuel vapor canister thus bypassing the first fuel vapor canister, without input from a powertrain control module. In this way, during refueling, saturated fuel vapor canisters are bypassed such that resistance to fuel vapor flow may be decreased, thus reducing the likelihood of premature shutoffs of a refueling dispenser.
Public/Granted literature
- US20170130659A1 SYSTEM AND METHODS FOR PREVENTING PREMATURE REFUELING SHUTOFF Public/Granted day:2017-05-11
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