FUEL QUANTITY CONTROLLING METHOD FOR VEHICLE AND SYSTEM THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a fuel quantity controlling method for a vehicle improving driving performance and fuel economy by correcting and controlling final fuel quantity by calculating changed amount of intake pressure due to a driving state of the vehicle in a purging section by utilizing a MAP (Manifold Absolute Pressure) sensor and system therefor. SOLUTION: Fuel quantity is controlled by performing a final fuel quantity compensation by dividing cases into a case having canister high loading and switching a driving state of the vehicle from an Idle or Light Load state to a Part Load or Full Load state and a case having canister low loading and switching the driving state of the vehicle from the Part Load or Full Load state to the Idle or Light Load state.