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). |