Patent ID: 8955559
Filing Date: 2015-02-17
Classification: B60K,F02M

Abstract:
1. A fuel vapor handling system for an automotive fuel tank, the system comprising: a fuel tank configured to store fuel; a fuel filler pipe configured to supply fuel to the fuel tank; a canister which is configured to absorb fuel vapor, and from which the absorbed fuel vapor can be desorbed; a fuel vapor pipe through which fuel vapor is guided from the fuel tank to the canister during refueling; a purge pipe through which the fuel vapor absorbed by the canister is released to an intake system of an engine; an open-to-air pipe through which the canister is open to air; and a pressure sensor configured to detect a change in an internal pressure of a fuel vapor path including the fuel tank, the fuel vapor pipe, and the canister, and perform a diagnosis of leakage of fuel vapor, wherein: