METHOD FOR CONTROLLING AN ENGINE BRAKING DEVICE AND ENGINE BRAKING DEVICE

The invention relates to a method for controlling an engine brake device for an internal combustion engine in motor vehicles, in particular in commercial vehicles, wherein the engine brake device comprises an intake system, an exhaust system, internal combustion engine-side gas exchange valves, exhaust gas turbocharging by means of at least one exhaust gas turbocharger integrated into the exhaust system and the intake system, and an engine brake device, wherein the engine brake device comprises a decompression brake influencing at least one exhaust valve of the gas exchange valves and dependent on exhaust gas back pressure, and a brake flap arranged in the exhaust system which backs up the exhaust gas. To achieve a precisely controllable engine brake output, it is proposed that in engine brake operation the requested braking torque (B) is regulated as a function of the boost pressure (PL) of the exhaust gas turbocharger (7) and the exhaust gas back pressure (PA) upstream of the brake flap (12) arranged upstream of, preferably immediately upstream of, an exhaust turbine of the exhaust gas turbocharger. Furthermore, a suitable engine brake device is proposed.