Oliver Kirstein

Mixture regulation method for an internal combustion engine, involves calculating value of oxygen charging, and determining rich or poor breakthrough by oxygen sensor

Internal-combustion engine, has air supply device provided for extracting air from air intake system at position downstream of compressor, and for injecting air into exhaust gas system

Verfahren und Vorrichtung zur Diagnose von Katalysatoreinheiten

Internal combustion engine and method for operating an internal combustion engine comprising a fuel regulating device

Method and device for the diagnosis of catalytic units

Verbrennungsmotor und verfahren zum betrieb eines verbrennungsmotors mit einer kraftstoffregelungsvorrichtung

SECONDARY-AIR SYSTEM AND METHOD FOR CHECKING THE OPERABILITY OF THE SECONDARY-AIR SYSTEM

Mixture setting method for motor vehicle, involves delaying mixture changes from rich to lean mixture and vice versa around two preset time intervals, after transmission from lean to rich mixture and vice versa, respectively

Method for operating an internal combustion engine by adaption of mixture pilot control

Process and apparatus for diagnosis of the catalyst units