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 combusion 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.

A method for controlling an internal combustion engine of a vehicle coupled to a main engine control unit via an auxiliary engine control unit, with the method steps:

• intercepting at least one engine control output signal of the main engine control unit;
• changing the intercepted engine control output signal according to a predetermined control scheme;
• and
• outputting the changed engine control output signal to the internal combustion engine and thus controlling the internal combustion engine.