Patent ID: 9719437
Date: 2017-08-01
CPC Classifications: F02D,Y02T

Claim:
1. A method, comprising: determining a target fuel amount required to satisfy a net torque demand in an engine in response to a target torque and an engine speed of an engine; determining a base air mass flow value to the engine in response to the target fuel amount, wherein the base air mass flow value is based on at least one of a stoichiometric air-to-fuel ratio and target ignition timing; determining an adjusted base air mass flow value that is adjusted in response to: a first air mass flow adjustment that is determined from an ignition timing efficiency table as a function of an engine speed and an ignition timing deviation, wherein the ignition timing deviation is the difference between a current ignition timing and a target ignition timing determined for a desired operating condition; and determining an air mass flow command for operation of the engine from the adjusted base air mass flow value and a feedback control adjustment based on a deviation of an actual torque output from a target torque output.