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    • 9. 发明专利
    • CONTROL DEVICE FOR ENGINE
    • JPH02115539A
    • 1990-04-27
    • JP27045888
    • 1988-10-25
    • MAZDA MOTOR
    • KANEKO TADASHIKAIDE TADAYOSHIKAWANO TAMENORI
    • F02D41/10F02D29/06
    • PURPOSE:To secure the fine operationability without engine stop, etc., by specially limiting the period when the increase control of the fuel is performed, and though at the time of accelerative operation, stopping the fuel increase during this predetermined period because the lightly operated acceleration is possible in the predetermined time from the start of the acceleration. CONSTITUTION:Though at the time of the accelerative operation, since the lightly operated acceleration is possible from the time of the start to the time before passing of the predetermined period, only an output control means 38 is actuated and a fuel increase control means 39 is not actuated. Therefore, only an electric driving device 17 is actuated and the positive torque is given to an engine output shaft 1a so that the driving torque is increased. At this stage, since the fuel increase to the engine 1 is not performed, the over richfying of the air-fuel ratio is prevented and the engine stop is eliminated in the case of the lightly operated acceleration. And at the time of the real accelerative operation, since it is within the predetermined period immediately after the start of the accelerative operation, the intake air quantity is not increased so much. Consequently, the air-fuel ratio of the air-fuel mixture can be maintained at the predetermined air-fuel ratio.