1. A method for knock suppression within an engine comprising: determining a plurality of input conditions of the engine; determining a plurality of modeling values associated with additional inputs in relation to the operation of the engine in a preferred state; determining a first actuation event by comparing a desired EGR fraction value with predetermined fraction system limits; executing the first actuation event in response to a first command; determining a second actuation event by comparing one or more peak end gas temperature estimates with predetermined end gas temperature system limits; executing the second actuation event in response to a second command; determining a third actuation event after receiving feedback of a sensed knock value from a sensor determining sensed knock; and executing the third actuation event in response to a final command.