Apparatus for controlling the amount of secondary air fed into an internal combustion engine

An apparatus for controlling the amount of secondary air fed into an internal combustion engine, comprising:

• means for generating a first electrical signal having a value which indicates an equivalent air-fuel ratio condition of said engine;
• means for generating a second electrical signal having a value which indicates the rotational speed of said engine;
• means for generating a third electrical signal having a value which indicates the load of said engine;
• means for generating a fourth electrical signal having a value corresponding to the product of the value of said second electrical signal and the value of said third electrical signal;
• means for generating a fifth electrical signal by integrating the value of said fourth electrical signal, the integral direction of said fifth electrical signal being determined by the value of said first electrical signal;
• means for controlling the amount of secondary air to be fed into said engine in accordance with the level of an actuating pressure applied thereto, and;
• means for controlling the level of the actuating pressure applied to said secondary air amount control means, in accordance with the value of said fifth electrical signal.