Hyundai Accent: [CVVT System Mode]

Hyundai Accent RB (2010-2018) Service Manual / Emission Control System / Exhaust Emission Control System / CVVT (Continuously Variable Valve Timing) System. Description and Operation / [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
Driving Condition	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	* Increase of expansion work * Reduction of pumping loss * Reduction of HC	Retard	* Reduction of pumping loss
(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

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 con ...

Engine Control/Fuel System

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See also:

Valve Body. Components and Components Location
Components Location 1. PCV adjust screw 2. Solenoid valve 3. Oil temperature sensor 4. Accumulator 5. Low & reverse brake(LR/B) pressure flow hole 6. Und ...

To decrease the cruising speed
Follow either of these procedures: Push the SET- switch and hold it. Your vehicle will gradually slow down. Release the switch at the speed you want to maintain. Push the SET- switch and re ...

Mirror. Repair procedures
Replacement Outside Rear View Mirror Assembly Replacement • When prying with a flat-tip screwd ...

Hyundai Accent Manuals

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