| 摘要 |
PURPOSE:To improve the emission on acceleration and deceleration, fuel consumption, and drivability by correcting the fundamental injection amount on the basis of the amount of variation of the analogue signal voltage of a neating- wire type flow meter with respect to time. CONSTITUTION:A heating-wire type air flow meter 24 which measures the inake air amount by detecting the temperature of a heating wire exposed to the flowing air in an intake pipe 23 is installed on the upstream side of a throttle valve 21 in the intake pipe 23. An electronic control circuit 30 calculates and controls the valve opening time of a fuel injection valve 16 on the basis of each detection value of an oxygen sensor 15, intake temperature sensor 18, water- temperature sensor 19, throttle valve opening sensor 21, revolution angle sensor 28, etc., together with the analogue signal voltage supplied from the heating- wire type air flow meter 24. Said electronic control circui 30 corrects the fundamental injection amount on the basis of the amount of variation of the analogue signal voltage of the air flow meter 24 with respect to time. |
