Procédé pour éviter de fausses informations lors du diagnostic d'organes de réglage en particulier de vannes d'écoulement dans le cas de véhicules à moteur.

摘要

The invention relates to a method for diagnosing the function of an adjusting device and includes the steps of: driving the adjusting device, detecting the effect of driving the adjusting device on a predetermined variable operatively coupled to the adjusting device; determining the adjusting device to be operable when the effect lies in a first range of possible values; and, determining the adjusting device to be inoperable when the effect lies in a second range of possible values. A third range is defined which separates the first and second ranges from each other. The method is interrupted or repeated when the effect lies in the third range.