| 摘要 |
PURPOSE:To realize such a fuel feed control as being excellent in responsiveness, by detecting a state of engine's acceleration and deceleration from the on/ off valve speed of a throttle valve, while adding a fuel increment/decrement portion determined in response to size of the negative pressure of a suction pipe to the specified fuel injection quantity. CONSTITUTION:An opening sensor 16 is connected to a throttle valve 13 to be installed inside a suction pipe 11, and the output signal is inputted into a discriminator device 17. The discriminator device 17 is constituted so as to output a signal when on/off valve speed of the throttle valve 13 reaches the specified valve while the signal is inputted into a control unit 18 together with each output of an air volume sensor 12 and a pressure sensor 14 in the downstream of the throttle valve 13. Then, this control unit 18 compensates the increment and decrement portion predetermined according to the output level of the pressure sensor 14 additionally to a fuel injection quantity findable from a suction air quantity, etc., when the signal is outputted from the discriminator device 17, and is constituted so as to drive and control a fuel injection valve 15, in compliance with thus compensated fuel injection quantity. |
