| 摘要 |
PURPOSE:To accelerate a degree of accelerating responsiveness yet speedier as well as to make tardiness in time or acceleration improvable, by making data on pressure inside a suction pipe into logarithmic conversion, while performing accelerating judgement with the logarithmic value. CONSTITUTION:A logarithmic conversion device for data on pressure inside a suction pipe converts suction pipe internal pressure data P into a logarithmic value logP, and this logarithmic value is compared with the specified value P0 at a comparison device, and when it is above the specified value, it is judged to be acceleration whereby a fuel injection quantity is increased by a fuel increment device. This logarithmic value data logP is more suddenly rises than in case of the suction pipe internal pressure data P especially in a light load range. That is to say, even if a variation in the suction pipe internal pressure P is uniform, the variation in the logarithmic value logP is large enough at the light load range where the data P is small, therefore it comes easy to exceed the specified accelerating judging value, thus accelerating responsiveness can be improved. |
