Control device for a power-driven air pump for a car

摘要

A control device for a power-driven pump used for a car comprising a d.c. motor, an air pump driven by the d.c. motor and an exhaust device for reburning and purifying exhaust gas from an engine by actuating the air pump, wherein sensors for detecting quantity of air necessary to be fed into the exhaust device to purify the exhaust gas and a variable control device to variably control the revolution speed of the d.c. motor depending on the quantity of air.