– the CVVT Oil Control Valve (OCV) which supplies the engine oil to the cam phaser or takes out 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 changes the cam phase by using the hydraulic force of the engine oil.
The engine oil which is supplied from the CVVT oil control valve changes 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.
• The variable force solenoid (VFS) changes its force depending on the PWM duty to control the stroke of the OCV.
• It also controls the lock, unlock, advanced, retarded, and holding functions.
[CVVT System Mode]
(1) Low Speed / Low Load | (2) Part Load |
|
|
(3) Low Speed / High Load | (4) High Speed / High Load |
|
|
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 | Middle | * Valve Under-lap * Improvement of combustion stability |
(2) Part Load | Retard | * Reduction of HC | Retard | * Reduction of pumping loss |
(3) Low Speed /High Load | Completely Advance | * Reduction of pumping loss | Advance | * Prevention of intake back flow (Improvement of volumetric efficiency) |
(4) High Speed/High Load | Completely Advance | * Reduction of pumping loss | Advance | * Prevention of intake back flow (Improvement of volumetric efficiency) |
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Lane Keeping Assist Settings
Lane Safety
With the ignition switch ON, go to
User Settings > Driver Assistance >
Lane Safety (for cluster type) or Setup
> Vehicle > Driver Assistance > Lane
Safety (for infotainment system type)
from the Settings menu to select the
following:
If Assist is selecte ...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Windshield Defrosting and Defogging
WARNING
Do not use the defrost-level
position
during the cooling operation in extremely
humid weather. The outer surface of the
windshield may fog and reduce visibility,
causing a collision that results in serious
injury or death.
Set the mode selection button to the
face-level pos ...