Method of adjusting the engine braking performance of a supercharged internal-combustion engine

摘要

A method adjusts the engine braking performance of a supercharged internal-combustion engine. The exhaust gas turbocharger of the internal-combustion engine is provided with a variably adjustable turbine geometry for changing the effective turbine cross-section. In order to be able to transmit high brake powers, while the directional control is simultaneously high, a wheel slip control is implemented in the engine braking operation. The rotational speed of at least one wheel is measured and is compared with a reference value. In the event of a deviation of the measured rotational wheel speed from the reference value, a control signal is generated and fed to a control element which acts upon the variable turbine geometry for reducing the wheel slip.