Patent ID: 11913364
Assignee: ROBERT BOSCH GMBH
Field: Environmental technology (Chemistry)
Classification: CPC F | IPC F

Claim 9:
10. A non-transitory computer readable medium storing instructions that, when executed by a computing unit (40), cause the computing unit (40) to perform a set of operations for monitoring an exhaust system of a vehicle, the set of operations comprising:
carrying out (520) multiple successive emission measurements for at least one component in the exhaust gas, wherein each of the emission measurements is performed after a driving distance of predetermined length is covered by the vehicle;
storing (540) a distance-related emission value (Ei), which was obtained (530) on the basis of the measurement, for each of the emission measurements;
forming (550) a smoothed emission level for a current point in time on the basis of several previously stored distance-related emission values, wherein a memory structure (200, 400) having a fixed number of data elements (210, 410) is used to store the emission values, and wherein, if all data elements (210, 410) are occupied, upon the storage of a new emission value, the respective oldest emission value in the memory structure is overwritten;, checking whether the smoothed emission level exceeds a predetermined threshold value; and
when the smoothed emission level exceeds a predetermined threshold value, copying the oldest emission value in the memory structure (400) into an additional buffer memory (440) before storing a new emission value,
wherein more recent emission values are taken into consideration more strongly than emission values lying farther back in time in the formation of the smoothed emission level, and
emission values from the buffer memory (440) are also used in addition in the formation of a smoothed emission level for a current point in time.