Method and device for controlling the exhaust gas recirculation for internal combustion engines

The exhaust gas feedback regulation method uses a regulating valve (2) for controlling a feedback line (40) used for extracting exhaust gas from the exhaust line (30) and supplying it to the air intake (20) for the IC engine (50). A diagnosis routine is executed during the operation of the regulating valve, in which the latter is opened and closed in defined operating ranges, with operating parameter data provided by at least one sensor (10,11) compared with stored data for adaption of the regulating valve position regulation. An Independent claim for an exhaust gas feedback regulation device for an IC engine is also included.