초록 ▼

An electronic turbocharger control system for an internal combustion engine is provided to control at least one turbocharger by controlling a bypass valve and a wastegate in response to the engine speed, engine load, ambient temperature, and the operating environment's barometric pressure wherein th

An electronic turbocharger control system for an internal combustion engine is provided to control at least one turbocharger by controlling a bypass valve and a wastegate 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.

대표청구항 ▼

[ What is claimed is:] [6.] An internal combustion engine turbocharger control system comprising:at least one turbocharger connected to the engine and having a turbine and a compressor;a bypass valve connecting the compressor and the turbinea wastegate connected between the engine and turbine;an ele

[ What is claimed is:] [6.] An internal combustion engine turbocharger control system comprising:at least one turbocharger connected to the engine and having a turbine and a compressor;a bypass valve connecting the compressor and the turbinea wastegate connected between the engine and turbine;an electronic control controlling in combination the bypass valve and the wastegate; andan engine intake throttle arranged between the compressor and the engine and having a throttle angle for variably controlling engine intake air wherein the throttle angle versus engine load can be graphically represented and wherein the electronic control provides for a substantially linear graph of the throttle angle change as the engine load varies by controlling the bypass valve and wastegate.