System and method for determining maximum available engine torque

A method of determining a current maximum available output torque of an internal combustion engine, comprising the steps of:

• determining an engine rotational speed of an internal combustion engine;
• producing an engine fueling command wherein said engine fueling command corresponds to a current maximum available fueling command, based on an engine output torque request, for fueling said engine;
• and
• producing a current maximum available engine output torque value as a function of said engine rotational speed and said engine fueling command.
• Wherein the step of producing a current maximum available engine output torque value includes:
• producing a current maximum engine output torque value as a function of said engine rotational speed and said current maximum available fueling command;
• and producing said current maximum available engine output torque value as a function of said current maximum engine output torque value.

System for determining a current maximum available output torque of an internal combustion engine, comprising:

• an engine speed sensor producing an engine speed signal indicative of a current rotational speed of an internal combustion engine;
• means for determining at least one engine intake parameter associated with operation of an intake manifold coupled to said engine;
• means for determining an engine exhaust parameter associated with operation of an exhaust gas flow structure coupled to said engine;
• and
• a control circuit responsive to said engine speed signal, said at least one engine intake parameter and said engine exhaust parameter operating to determine a current maximum available output torque of said engine as a function thereof.

A method of determining a current maximum available output torque of an internal combustion engine, comprising the steps of:

• determining an engine rotational speed of an internal combustion engine;
• determining at least one engine intake parameter associated with operation of an intake manifold coupled to said engine;
• determining an engine exhaust parameter associated with operation of an engine exhaust structure coupled to said engine;
• and
• producing a current maximum available engine output torque value as a function of said engine rotational speed, said at least one engine intake parameter and said engine exhaust parameter.