Patent ID: 9638142
Date: 2017-05-02
CPC Classifications: B60K,F02M

Claim:
1. A vaporized fuel processing apparatus comprising: a fuel tank; a canister configured to adsorb vaporized fuel; a vapor path connecting the canister and the fuel tank to each other; a closing valve provided in the vapor path; a pressure sensor configured to measure inner pressure of the fuel tank; a power switch; and an electric control unit connected with the closing valve, the pressure sensor, and the power switch; wherein the electric control unit is configured to actuate the closing valve to a predetermined initial closed position when the power switch is turned off; and wherein the electric control unit is configured to determine whether the closing valve is in an open fastening state while the closing valve is in the predetermined initial closed position based on whether a change in the inner pressure of the fuel tank is equal to or more than a first predetermined value, after a predetermined time from when the closing valve is actuated to the predetermined initial closed position.