摘要 |
Operating an internal combustion engine (10) having an intake channel (11), two exhaust channels (20, 30) and two exhaust gas recirculation channels (40, 50) with valves (41, 51), where a control unit (60) generates valve position signals (S1, S2) corresponding to a target recirculation rate, comprises determining the actual recirculation rate for one valve and sending a position signal to this valve while closing the other valve. An independent claim is also included for apparatus (unspecified) for carrying out the above process. |