Patent ID: 8627808

Claim:
A method for closed-loop control of a combustion process of an internal combustion engine, comprising the steps of: injecting fuel for combustion into the internal combustion engine, recirculating exhaust gas into an intake channel, acquiring an instant of combustion, comparing the acquired instant with a setpoint value, varying, as a function of the comparison result, the injection in order to shift the instant of combustion in the direction of the setpoint value, and converting a fraction of the change of injection to an adaptation value for closed-loop control of the exhaust-gas recirculation device in order to shift the combustion in the direction of the setpoint value, wherein a P-I-controller executes the closed-loop control method for the injection using a proportional component and an integral component, wherein the comparison result is used to correct the proportional component and the integral component, and wherein one of the proportional component and integral component of the closed loop method for the injection is reduced and converted to an adaptation value for closed-loop control of the exhaust gas recirculation in order to shift the combustion in the direction of the setpoint value.