System for measuring the quantity of intake air in an engine.

摘要

A system for measuring quantity of intake air in an engine has an airflow meter provided in an intake passage upstream of a throttle valve for measuring the quantity of intake air. Quantity of intake air entered into a space between the throttle valve and cylinders of the engine without entering into the cylinders is calculated. The difference between the quantity of intake air measured by the airflow meter and the quantity entered in the space is calculated to provide the quantity of intake air actually entering into the cylinders.