CVVT System Mode
WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
| Driving Condition | Exhaust Valve | Intake Valve | ||
|---|---|---|---|---|
| Valve Timing |
Effect | Valve Timing |
Effect | |
| (1) Low Speed /Low Load |
Completely Advance |
* Valve Under-lap * Improvement of combustion stability |
Completely Retard |
* Valve Under-lap * Improvement of combustion stability |
| (2) Part Load | Retard | * Reduction of HC | Retard | * Delays the closing time of intake valve to reduce pumping loss * Increases expansion work |
| (3) Low Speed /High Load |
Retard | * Increase of expansion work | Advance | * Prevention of intake back flow (Improvement of volumetric efficiency) |
| (4) High Speed /High Load |
Advance | * Reduction of pumping loss | Retard | * Improvement of volumetric efficiency |