Turbocharger control system for turbocharged internal combustion engines equipped with exhaust gas recirculation control system

摘要

A turbocharger control system for a turbocharged internal combustion engine equipped with an exhaust-gas recirculation (12) control system recycling part of inert exhaust gas back through the engine (1) under predetermined operating conditions of the engine, comprises a variable-displacement turbocharger (4) variably adjusting a turbo-charging state. Also provided is a turbocharger control unit which corrects a controlled quantity of the variable-displacement turbocharger in response to correction made to a desired EGR rate for the exhaust-gas recirculation control system.