Richard Hotzel

Method for operating an internal combustion engine having a plurality of cylinder banks

Procedure and device for diagnosing an exhaust gas probe

Method and device for regulating the air/fuel ratio of an internal combustion engine

Method and device for regulating the fuel/air ratio of a combustion process

Lambda modulation for internal combustion engine, involves conducting exhaust gases by exhaust system, controlling air-fuel mixture ratio by fuel measuring system and adjusting lambda value by automatic control loop

Verfahren und Vorrichtung zur Bestimmung der Gaskomponenten im Abgas eines Verbrennungsmotors

Procedure and device for diagnosing the dynamic of an exhaust gas sensor

Method for controlling combustion engine with combustion chamber, involves overflowing air mass from air intake system into waste gas system during valve overlap of gas shuttle valves

Lambda control for internal combustion engine regulates oxygen concentration in exhaust gas in front of catalytic converter on internal combustion engine

Method for the diagnosis of a catalytic converter which is arranged in an exhaust area of an internal combustion engine and device for carrying out said method