Method for recirculating exhaust gas of internal combustion engine of vehicle i.e. motor car, involves storing malfunction indicating data in memory during occurrence of malfunction in low-pressure exhaust gas recirculation process

摘要

The method involves recirculating exhaust gas over a low-pressure line into an air intake of an internal combustion engine. A difference in pressure is determined in a region of the low-pressure line, and the determined difference is used for monitoring low-pressure exhaust gas recirculation process. Malfunction indicating data is stored in a memory of an exhaust gas controller during occurrence of a malfunction in the low-pressure exhaust gas recirculation process. Recycling of the controller is activated, and mass flow of the recirculated exhaust gas is determined based on the difference. An independent claim is also included for an exhaust gas recirculation device for an internal combustion engine of a vehicle.