A turbocharger having means for detecting a turbocharger malfunction and a method for detecting such a malfunction

摘要

A turbocharger with a device for detecting a malfunction of at least one bearing of the turbocharger, a) wherein the device for detecting a malfunction of the turbocharger has a memory device are stored in the desired speed characteristics of an intact turbocharger, b) wherein the means for detecting a malfunction of the Turbocharger having a comparison device in which the determined actual speed curve of the turbocharger is compared with a corresponding desired speed profile of an intact turbocharger, c) wherein the turbocharger having a measuring device for determining an actual speed curve of the turbocharger, and d) wherein the means for determining a malfunction of the turbocharger outputs an error message when the comparison device determines that the actual speed reaches a limit speed (n) within a period of time (.DELTA.t *) and the time period outside a tolerance range for a target time period (.DELTA.t) li within which an intact turbocharger reaches the limit speed (s).