Patent ID: 11879368
Assignee: ROBERT BOSCH GMBH
Field: Environmental technology (Chemistry)
Classification: CPC F  Y | IPC F

Claim 0:
1. The method (200) for ascertaining an air volume provided by means of an electric air pump (134) in an exhaust system (120) of an internal combustion engine (110), the method comprising:
detecting at least one activation parameter (5) of the air pump, and
ascertaining (220), via a computer, a provided air mass flow rate (8) based on a calculation specification from the at least one activation parameter (5) by utilizing at least one selected from the group consisting of an inertia of the air pump (134), an inertia of the air upstream from the air pump (134), an inertia of the air pump (134) downstream from the air pump (134), and a differential pressure from upstream from the air pump to downstream from the air pump.