ENGINE SYSTEM CONTROL RESPONSIVE TO OXYGEN CONCENTRATION ESTIMATED FROM ENGINE CYLINDER PRESSURE

摘要

Method comprising the steps of:
determining an oxygen concentration deviation between an oxygen concentration setpoint and an estimated oxygen concentration that is estimated from actual cylinder pressure;
determining a boost pressure deviation between a boost pressure setpoint and an actual boost pressure;
producing a boost pressure control output in response to the boost pressure deviation; and
producing an oxygen concentration control output in response to the oxygen concentration deviation and the boost pressure control output.