Stop/Start System: Turbocharger
TURBOCHARGER BOOST CONTROL
The electric wastegate control actuator operates based on a signal from ECM and adjusts the turbo charger boost control valve angle via link rod. The electronic control allows the turbocharger wastegate control valve to be opened even in non-supercharging regions. This reduces pumping losses and contributes to the fuel economy. In charging regions, wastegate valve angles are controlled by the electronic control with a high degree of accuracy.
TURBOCHARGER BYPASS CONTROL
When an operating signal received from ECM energizes the solenoid, the turbocharger bypass control valve opens the valve by sucking in the plunger. The electronically-controlled turbocharger bypass control valve quickly opens the bypass valve when releasing the accelerator pedal during driving under supercharge. This reduces surge sound generated by the back flow of supercharged air to the compressor fin.