Armin Hassdenteufel

Method of checking the operability of the variable valve control in an internal combustion engine

Method and device for diagnosing tank leaks using a reference measuring method

Verfahren zur Diagnose eines Tankentlüftungsventils

Method for testing the functionality of a tank venting system of a motor vehicle having an internal combustion engine

Tank venting for internal combustion engine involves compared mass flow from characteristic with value derived from pressure sensor measurement data and correcting using this value

Method for diagnosing a tank venting valve

Driving apparatus i.e. combustion engine, operating device for motor car, has waste gate valve comprising valve flap that releases bypass channel and closes inlet and exhaust passages of turbine simultaneously in respective position

Operating process for internal combustion engine involves altering through flow cross section, recording reaction of lambda regulating circuit, and assessing reaction

METHOD FOR ISOLATING QUANTITY ERRORS OF A FUEL AMOUNT AND AN AIR AMOUNT DELIVERED TO AT LEAST CYLINDER OF AN INTERNAL COMBUSION ENGINE

Method for determining a filling difference in cylinders of an internal combustion engine, operating method, and calculation unit