Device and method for diagnosing a technical apparatus

摘要

A device and a method are provided for diagnosing a technical apparatus which is particularly developed as an internal combustion engine. When specified states of the technical apparatus are present, the means of diagnosis are activated, and when at least one of the specified technical states is no longer present, the means of diagnosis are deactivated. Upon the deactivation, information is stored that identifies which technical state is no longer present.

主权项

1. A device for diagnosing an internal combustion engine, comprising:
a diagnosis device configured as an electronic control unit adapted to initiate a diagnosis process of the internal combustion engine during operation of the internal combustion engine when predetermined states of the internal combustion engine required for the initiation of the diagnosis process are present, and wherein the diagnosis device is further adapted to subsequently terminate the diagnosis process prior to successful completion of the diagnosis process when at least one of the predetermined states of the internal combustion engine required for the initiation of the diagnosis process is no longer present; and an arrangement for storing, upon the termination of the diagnosis process nor to successful completion of the diagnosis process, information that identifies which of the predetermined states of the internal combustion engine required for the initiation of the diagnosis process is no longer present.