| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem that, upon restarting fuel injection immediately after the start of an engine, torque is increased to a value higher than an planned value and the rotation floating of the engine occurs, and as a result, fuel economy is deteriorated since air is present in an intake manifold direct after the start of the engine and the air of an amount larger than a planned value based on a throttle angle is supplied to the engine.SOLUTION: An engine control method for returning fuel injection stopped during an engine operation has a step of calculating required torque necessary for setting a present engine speed to a target rotation speed required in the engine operation, a step of calculating an accumulated air amount after start, a step of calculating retard limit torque in the engine speed when the fuel injection is restarted using the accumulated air amount after the start, and a fuel injection returning step of restarting fuel injection when the required torque becomes equal to the retard limit torque. |
