Active fuel vapor purging system and method using the same

An active fuel vapor purge system comprising:

• a turbocharger that includes:
• a turbine disposed on an exhaust line through which an exhaust gas discharged from an engine flows;
• and
• a compressor rotating in conjunction with the turbine and compressing an intake gas supplied to the engine;
• a canister that collects fuel vapor evaporated in a fuel tank;
• a purge pump that pumps the fuel vapor collected in the canister;
• a main purge line that connects the canister and the purge pump;
• a first purge line that is branched from the main purge line and joined to an intake manifold at downstream of the compressor;
• a second purge line that is branched from the main purge line and jointed to an intake line at upstream of the compressor;
• purge control solenoid valves that are respectively disposed in the first purge line and the second purge line and block fuel vapor collected in the canister;
• a hydrocarbon sensor that is disposed in the main purge line and measures an amount of hydrocarbon collected in the canister;
• a pressure sensor that measures an upstream pressure and a downstream pressure of the purge pump;
• and
• a controller that controls operation of the purge pump based on the amount of hydrocarbon measured by the hydrocarbon sensor, and further based on a pressure at a front end and a pressure at a rear end of the purge pump, each of which is measured by the pressure sensor.