Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 15, 2017
Patent Application Number
14938565
Date Filed
November 11, 2015
Patent Citations Received
Patent Primary Examiner
Patent 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.
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