| 摘要 |
PURPOSE:To delicately perform control of a fuel injection quantity with high accuracy in response to the condition of an engine by providing a pulse width control means which corrects the output pulse width of a pulse signal which makes opening/closing control of two opening/closing control means in response to the condition of the engine. CONSTITUTION:A fuel injection valve 18 is arranged inside an intake air pipe 28, while being located downstream from a throttle valve 32, and a first and second solenoid valves 40, 41 are operated by receiving control signals from an electronic control unit 34. Fuel from a fuel tank 42 is supplied to the first fuel pressure regulator 2 of a fuel injection valve 39, by a fuel supply passage 43 via a fuel pump 1, and returned by a return passage 4 to the fuel tank 42. The first and the second solenoid valves 40, 41 of the electronically controlled fuel injection device 39 is of a pressure balance type which is controlled in its opening and closing alternately by means of valve signals outputted from the electronically controlled unit 34 so that a quantity of fuel in response to an intake manifold pressure is supplied. |
