| 摘要 |
PURPOSE:To achieve precise air fuel ratio control by providing memory circuits which store a suction pressure and the quantity of supplied fuel where no exhaust gas is recirculated, and also providing a fuel supply controller which compensates said quantity of supplied fuel in response to the existent suction pressure. CONSTITUTION:A memory circuit 106 stores a pressure PIo in a suction pipe measured where no exhaust gas is recirculated, as the first data. A memory circuit 107 stores data adapted to determine a driving duration of a fuel injection valve, as the second data. A pulse width operator 109 compensates output data from the memory circuit 107 on the basis of an output (t1) from a temperature sensor and computes the driving duration of the fuel injection valve. Precise air fuel ratio control may be thus achieved. |
