Patent ID: 9546593
Date: 2017-01-17
CPC Classifications: F02B,F02D,Y02T

Claim:
1. A method for regulating stable operation of an exhaust-gas turbocharger of an internal combustion engine having a fresh-gas supply device, a switchover valve, a control device, a compressor for generating compressed air and an air-processing unit with a discharge valve, comprising the acts of: operating the compressor in a suction intake mode in which the switchover valve connects the compressor to an air inlet; monitoring operating parameters of the internal combustion engine, of the air-processing unit and of the exhaust-gas turbocharger when the compressor is in the suction intake mode; determining based on the monitored operating parameters whether to switch the switchover valve from the suction intake mode; switching the switchover valve to switch over the compressor from the suction intake mode to a pressure-charged mode in which the switchover valve connects the compressor to an exhaust-gas turbocharger compressor; monitoring operating parameters of the internal combustion engine, of the air-processing unit and of the exhaust-gas turbocharger when the compressor is in the pressure-charged mode; determining based on the monitored operating parameters whether to switch the switchover valve from the pressure-charged mode; and switching the switchover valve to switch over the compressor on the basis of the monitored operating parameters from the pressure-charged mode to the suction intake mode, wherein