Hyundai Accent: Operation Principle
The CVVT has the mechanism rotating the rotor vane with hydraulic
force generated by the engine oil supplied to the advance or retard chamber
in accordance with the CVVT oil control valve control.
![[CVVT System Mode]](images/books/444/smdec1008n.gif)
Continuous Variable Valve Timing (CVVT) system advances or
retards the valve timing of the intake and exhaust valve in accordance with
the ECM control signal which is calculated by the engine ...
(1) Low Speed / Low Load
(2) Part Load
(3) Low Speed / High Load
(4) High Speed / High Load
...