Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1VD-FTV INTAKE / EXHAUST
INTAKE SYSTEM - SYSTEM DIAGRAM
| TURBOCHARGER SYSTEM ILLUSTRATION |
The turbocharger system is comprised of the Variable Nozzle (VN) type turbocharger, turbo motor driver and ECM.
The turbocharger has a nozzle vane which opens and closes to control the volume of the exhaust gas flowing into the turbine. This, in turn, controls the boost pressure. When the nozzle vane moves towards the closing direction, the pressure increases. When the vane moves towards the opening direction, the pressure decreases.
The turbocharger actuator on the compressor housing side activates the nozzle vane. The nozzle vane position sensor on the actuator detects the opening angle of the nozzle vane. The turbo motor driver receives an opening angle request from the ECM and a nozzle vane position sensor signal. Based on these signals, the turbo motor driver operates the DC motor and controls the nozzle vane opening angle. The turbo motor driver sends the status as a turbo driver status signal to the ECM.
The ECM sends a target nozzle vane position signal to the turbo motor driver to obtain the nozzle vane position for optimal pressure in accordance with the driving conditions.
| *1 | ECM | *2 | Mass Air Flow Meter |
| *3 | Intercooler | *4 | Manifold Absolute Pressure Sensor |
| *5 | Diesel Throttle Body (for Bank 1) | *6 | Diesel Throttle Body (for Bank 2) |
| *7 | No. 1 Turbocharger (for Bank 1) | *8 | No. 2 Turbocharger (for Bank 2) |
| *9 | DC Motor (for Bank 1) | *10 | DC Motor (for Bank 2) |
| *11 | Engine Coolant Temperature Sensor | *12 | Crankshaft Position Sensor |
| *1 | ECM | *2 | Mass Air Flow Meter |
| *3 | Intercooler (w/ Intercooler) | *4 | Manifold Absolute Pressure Sensor |
| *5 | Diesel Throttle Body (for Bank 1) | *6 | Diesel Throttle Body (for Bank 2) |
| *7 | No. 1 Turbocharger (for Bank 1) | *8 | No. 2 Turbocharger (for Bank 2) |
| *9 | DC Motor (for Bank 1) | *10 | DC Motor (for Bank 2) |
| *11 | Engine Coolant Temperature Sensor | *12 | Crankshaft Position Sensor |
| *13 | Turbo Motor Driver (for Bank 1) | *14 | Turbo Motor Driver (for Bank 2) |