VARIABLE GEOMETRY TURBOCHARGER CONTROL
System Configuration Diagram
Through the request torque calculated by the accelerator pedal position sensor and so
on, engine speed, engine coolant temperature, intake air temperature and barometric pressure, the
engine-ECU calculates the target boost pressure. |
Comparing the target boost pressure with the actual boost pressure, the engine-ECU controls
the duty ratio of the variable geometry control solenoid valve so that the actual boost pressure
can be the target boost pressure (feedback control). |