Method for acquiring a replacement parameter for an ambient pressure for controlling a vehicle internal combustion engine comprises determining a starting value of the ambient pressure and further processing

摘要

Method for acquiring a replacement parameter for an ambient pressure for controlling a vehicle internal combustion engine comprises determining a starting value of the ambient pressure depending on the determined charge pressure in a first operating state of the engine, determining a drive power depending on the engine power and a loss power operated by a drive string of the vehicle, determining an air resistance power of the vehicle depending on the speed of the vehicle and determining the acceleration power, roll resistance and climbing power of the vehicle. An independent claim is also included for a device for acquiring a replacement parameter for an ambient pressure for controlling a vehicle internal combustion engine comprising a charge pressure sensor (68) arranged downstream of a compressor (11) located in an intake tract (2) of the vehicle.