betriebsartempfehlung for a partial abschaltbaren mehrzylindermotor

摘要

The appts. uses signals representative of air charge temperature and barometric pressure, a desired mass air flow evaluator, a maximum mass air flow evaluator, a desired exhaust gas recirculation flow evaluator, a maximum exhaust gas recirculation flow evaluator, and a controller. The controller compares the desired mass air flow to the maximum mass air flow, generating a mass air flow error signal if the desired mass air flow error exceeds a maximum mass air flow error. The controller also compares the desired exhaust gas recirculation flow to the maximum exhaust gas recirculation flow, generating an exhaust gas recirculation flow error signal if the desired exhaust gas recirculation flow exceeds a maximum exhaust gas recirculation flow. The two flow error signals are combined and compared to an acceptable error threshold, and a number of cylinders upon which to operate the variable displacement engine is recommended in response.