| 摘要 |
PURPOSE: A method of controlling a fuel is provided to achieve improved fuel efficiency and prevent a sudden change of RPM by effectively controlling a fuel cut operation. CONSTITUTION: A method comprises the first step(S110) of judging whether the current mode is a fuel supply mode; the second step(S111) of judging whether an engine is at an idle state if the current mode is a fuel supply mode; the third step(S112) of judging whether an engine RPM is larger than the sum of the reference value(C1) of fuel cut RPM and fuel cut upward data(C3); the fourth step(S113) of judging whether a predetermined time period has lapsed if the engine RPM is larger; the fifth step(S114) of cutting a fuel and adjusting fuel cut RPM upward if the predetermined time period has lapsed; the sixth step(S120) of judging whether the current mode is a fuel cut mode if the current mode is not a fuel supply mode in the first step; the seventh step(S121) of judging whether an engine is at an idle state if the current mode is a fuel cut mode; the eighth step(S122) of judging whether an engine RPM is larger than the reference value of fuel cut RPM, and ending the process if the engine RPM is larger; the ninth step(S123) of setting the fuel upward data to zero if the engine is at the idle state in the seventh step; the tenth step(S124) of injecting fuel by converting the mode into a rewet mode; the eleventh step(S130) of judging whether the current mode is a rewet mode; the twelfth step(S131) of judging whether the rewet operation is completed; the thirteenth step(S132) of performing a fuel injection operation; and the fourteenth step(S133) of converting the engine into the normal state and performing a fuel injection operation if the current mode is not a rewet mode in the eleventh step.
|
