| 摘要 |
PURPOSE: An air amount controlling method of a vehicle is provided to accurately predict the amount of air over the entire range by calculating the amount of air by using a throttle angle and an engine rpm when a suction air amount sensor is broken. CONSTITUTION: An air amount controlling method comprises the steps of: sensing a throttle angle and an engine rpm when a suction air amount sensor is broken(20); calculating a throttle limit and determining the amount of air(21); deciding if the throttle angle is less than the throttle limit or not(22); subtracting the determined amount of air from the throttle angle if the throttle angle is less than the throttle limit(23); and subtracting the determined amount of air from the throttle limit if the throttle angle is not less than the throttle limit(24). Therefore, the amount of air is predicted without errors over the entire range without mapping the amount of air with respective throttle angle and engine rpm ranges.
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