Bayerische Motoren Werke Aktiengesellschaft

Winfried Weuste

Steffen Lutz

Wolfgang Weber

Oliver Froelich

Florian Mehringer

Bertil Riksen

Jens Kriese

Stephan Wenzel

Johannes Rieger

Franz Rosskopf

A mixture pilot control for operating an internal combustion engine, in particular a gasoline engine of a motor vehicle, is provided. The mixture pilot control determines at least one composition of an air-fuel mixture required for a predetermined target air-fuel mixture ratio. The internal combustion engine is also provided with a lambda control with at least one lambda probe arranged in the exhaust gas flow of the internal combustion engine for determining a deviation of the actual air-fuel ratio from the predetermined target air-fuel ratio. Operating-parameter-dependent correction factors for the composition of the air-fuel mixture by the mixture pilot control are determined in dependence on the lambda control deviation, at least one of the load and/or the rotational speed and/or the temperature of the internal combustion engine, and further operating parameters of the vehicle other than the load, rotation speed or temperature of the internal combustion engine.

Method for operating an internal combustion engine

A process and apparatus for starting an internal-combustion engine of a vehicle is provided, having a starting device for starting the internal-combustion engine in which the rotational starting speed can be controlled or automatically controlled. For minimizing starting energy, shortening the starting time, increasing the starting safety and reducing the emissions during the start, the rotational speed generated by the starting device is adjusted to a defined maximal rotational starting speed.

Starting process for an internal-combustion engine

Growing community of inventors

Oberhaching, Germany

Winfried Weuste