VERWALTUNGSSYSTEM ZUR TURBOLADERREGELUNG

摘要

An electronic turbocharger control system for an internal combustion engine is provided to control at least one turbocharger (16) by controlling a bypass valve (40) and a wastegate (44) in response to the engine speed, engine load, ambient temperature, and the operating environment's barometric pressure wherein the turbocharger is controlled to operate within predetermined islands of efficiency on a pressure ratio versus mass airflow map thereby allowing the adaptation of one turbocharger assembly for various applications. The method and apparatus provides improved engine efficiency and increases low speed torque.