EVAPORATIVE EMISSION CONTROL IN BATTERY POWERED VEHICLE WITH GASOLINE ENGINE POWERED GENERATOR

摘要

An operating method of an evaporative emission control system in battery powered vehicle with a gasoline engine powered generator is provided to prevent diurnal vapor generation and remove emission running on a canister by shutting off a first and second air/fuel evaporative passage. An operating method of an evaporative emission control system comprises a step of opening a first and a second air/fuel vapor path when an engine(12) works; and a step of opening only the first air/fuel vapor path when fuel is fed into a fuel tank(18) although a vehicle stops.