| 摘要 |
PURPOSE:To enhance the stability of idle rotation and as well the economy of fuel consumption, by carrying out learning by a predetermined number of times from the time when the idle condition is effected, and thereafter, by clamping the feed-back control of air-fuel ratio while stopping the learning. CONSTITUTION:There is provided a means for detecting the deviation of an air- fuel ratio feed-back compensating coefficient from a reference value, and a clamp means and a renewal stopping means are operated under such a condition that the number of renewal times of the learning compensating factor upon idling is above a predetermined number of times and the above-mentioned deviation is within a predetermined range. Further, there is provided a compensating means for compensating, toward the reducing side, a fuel injection amount which is computed by means of a fuel injection amount computing means. With this arrangement the stability of idle rotation and the economy of fuel consumption may be enhanced. |
