Auxiliary engine control unit, in particular an adaptive auxiliary engine control unit, for use with a main engine control unit or an internal combustion engine, in particular an internal combustion engine of a vehicle

An auxiliary engine control unit for use with a main engine control unit for an internal combustion engine of a vehicle, comprising:

• an input signal interface unit, which is configured to intercept at least one engine control output signal of the main engine control unit;
• a control unit which is configured to change the intercepted engine control output signal according to a control scheme stored in the control unit;
• and
• an output signal interface unit which is configured to output the engine control output signal, changed by the control unit, to the internal combustion engine to be controlled, wherein
• the input signal interface unit is configured for tapping at least one engine control input signal of the main engine control unit and the stored control scheme is functionally dependent on the intercepted engine control input signal, wherein
• the engine control input signal represents a pressure in the combustion chamber and/or an exhaust-side gas mixture pressure.