ENGINE BRAKE METHOD FOR OPERATING A VEHICLE WITH A TURBOCHARGED INTERNAL COMBUSTION ENGINE AND ASSOCIATED VEHICLE

An engine brake method is for operating a vehicle with a turbocharged internal combustion engine. The engine comprises a boost pressure regulation device, which is configured to adjust the boost pressure in the intake manifold, and an exhaust gas restriction device, which is located downstream from a turbine of the turbocharger and which is configured to regulate an air exhaust pressure in an exhaust manifold. The engine brake method includes a dual phase during which, simultaneously, the boost pressure regulation device regulates the air exhaust pressure in the exhaust manifold in closed loop, and the exhaust gas restriction device controls the boost pressure in closed loop.