| 摘要 |
<p>PURPOSE:To enable the operation of high accuracy and thereby perform an integrated control of a fuel-jetting valve by performing the integration processing in the operation of the intake quantity of the internal combustion engine. CONSTITUTION:The output voltage from a hot-wire type fluid speed detector 1 is transduced functionally 7 into an instantaneous suction quantity and is supplied to a switching circuit 9. On the other hand, a sensor 5 is provided on the crank shaft of the internal combustion engine, a pulse is generated therefrom corresponding to the angle of the rotation of the crank shaft, the pulse which is divided 8 is inverted INV and thereby a trigger pulse (c) is formed and given to a gate AND and a switch SW2, and further the divided pulse is given to SW1. During the time when SW1 is turned on the functionally-transduced output is integrated 10, the integration is discontinued by the turning-on of SW2, the integrated output is given to the gate after being compared 11 with a prescribed voltage, a counter 12 is operated during the on-time of the pulse (c), a clock 13 is counted, a counted value equivalent to the output voltage of a transducer 7 is outputted and doubled 14, and thus a signal indicating the suction quantity per one rotation of the engine is obtained.</p> |
