| 摘要 |
PURPOSE:To prevent the engine stall in idle operation after the restart before the completion of warming by correcting the fuel injection amount in idling towards increase, within a prescribed range when the cooling-water temperature on engine start is outside the operation temperature range of a fast idle mechanism. CONSTITUTION:In engine operation, it is judged that the water-temperature data THW detected by a water-temperature sensor 8 is below a prescribed value T1 or not in control circuit 10, and if THW<T1, idle state is judged from each output of an idle switch 6 and a car-speed sensor 9. When the judgement is YES, the idle revolution speed is increased by operating an idle-up mechanism 16. While, on engine start, it is judged that the water-temperature data THW is within a prescribed range T1<=THW<=T2 or not, and when the judgement is YES, in other words, in idle state in the restart state where perfect warming is not formed, the fuel injection amount supplied from a fuel injection valve 15 is corrected toward increase. |
