SYSTEMS AND METHODS FOR INFERRING FUEL VAPOR CANISTER LOADING RATE

Methods and systems are provided for indicating a restriction in a fuel system vapor recovery line. Responsive to such an indication, methods and systems are provided for taking mitigating actions such that an entirety of a vehicle fuel system and evaporative emissions system, including a fuel fille...

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Hauptverfasser: Yang, Dennis Seung-Man, Pearce, Russell Randall, Dudar, Aed M
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creator Yang, Dennis Seung-Man
Pearce, Russell Randall
Dudar, Aed M
description Methods and systems are provided for indicating a restriction in a fuel system vapor recovery line. Responsive to such an indication, methods and systems are provided for taking mitigating actions such that an entirety of a vehicle fuel system and evaporative emissions system, including a fuel filler system, may be diagnosed as to a presence or absence of undesired evaporative emissions, even with the restriction in the vapor recovery line present. In this way, undesired evaporative emissions may be reduced or avoided, completion rates for such tests may be increased, and customer satisfaction may be improved.
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subjects ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES
ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES
AUXILIARY DRIVES FOR VEHICLES
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INSTRUMENTATION OR DASHBOARDS FOR VEHICLES
LIGHTING
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
TRANSPORTING
VEHICLES IN GENERAL
WEAPONS
title SYSTEMS AND METHODS FOR INFERRING FUEL VAPOR CANISTER LOADING RATE
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