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15-30 d. E-VGT system control Turbocharger system operates the E-VGT actuator according to the signals for engine epm, accelerator pedal position, atmospheric pressure, T-MAP, coolant temperature and intake air temperature. Turbocharger actuator is performed PWM control by ECU. In general, the boost pressure feedbacks the turbocharger operation and the boost temperature is used for calculating the precise density. E-VGT provides higher engine power with faster reaction speed compared to conventional VGT. Operating wave Vane Control Low speed range In low speed range: High speed range The unison ring |