| 摘要 |
PURPOSE: An engine control method for a vehicle is provided to compensate idle air amount in a point where transmission load is changed by using temperature of oil and rpm of a turbine when a vehicle is changed to a D(Drive)-range from an N(Neutral)-range in a low temperature idle state. CONSTITUTION: An engine control method comprises the steps of: reading a throttle opened degree, a turbine rpm, an output rpm, a brake pedal switch, shift lever position, oil temperature, an engine rpm and cooling water temperature and deciding if the shift lever is changed to a D-range from an N-range(S110); deciding if air amount increment/decrement condition is satisfied with response to change of the shift lever to the D-range(S120); and determining retardant time period according to the engine rpm and oil temperature and outputting a fuel injection amount control signal according to the increment/decrement of air amount if the air amount increment/decrement condition is not satisfied(S130,S140). Therefore, rapid rising/falling of engine rpm is prevented.
|
