By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work.
This system consist of-the CVVT Oil Control Valve (OCV) which supplies the engine oil to the cam phaser or cuts the engine oil from the cam phaser in accordance with the ECM PWM (Pulse With Modulation) control signal,
- the CVVT Oil Temperature Sensor (OTS) which measures the engine oil temperature,-and the Cam Phaser which varies the cam phase by using the hydraulic force of the engine oil.
The engine oil getting out of the CVVT oil control valve varies the cam phase in the direction (Intake Advance/Exhaust Retard) or opposite direction (Intake Retard/Exhaust Advance) of the engine rotation by rotating the rotor connected with the camshaft inside the cam phaser.Operation
Passive FunctionsThe system allows the user to access the vehicle without having
to perform any actions (e.g. RKE button pressing) with the SMART KEY FOB. It is
sufficient that a valid SMART KEY F ...
Repair procedures
Diagnosis With GDS
1.
BSD system defects can be quickly diagnosed with the GDS. GDS
operates actuator quickly to monitor, input/output value and self
diagnosis.
2.
Connect the cable of GDS ...
Seat Track Position Sensor (STPS) Components and Components Location
Components
...