FUEL INJECTION QUANTITY CONTROLLER

摘要

PURPOSE:To feed predetermined amount of fuel at anytime by detecting the operation of fuel injection pump through the phase angle of driven shaft then time converting only such range as the detection of angle is substantially unable and injecting predetermined amount of fuel. CONSTITUTION:On the basis of the load information from unit angle sensor 50, accelerator sensor 40 and temperature sensor 45, a control circuit 26 will determine the fuel injection to obtain the spill start timing of time unit from two-dimensional map of engine rotation thus to turn on a spill solenoid valve 21 upon elapse of Ttheta from the referential angle signal detecting time point of referential angle sensor 30 and to finish injection. If there is variation of rotation, it will cause a spill timing error thereby the count of unit angle signal from the sensor 50 and the time count through a time counter are employed to execute control having low spill timing error. Consequently, specific amount of fuel is ensured irrespectively of the varying time point of engine rotation resulting in improvement of fuel consumption.