Description |
– |
the CVVT Oil Control Valve (OCV) which supplies the engine oil to the
cam phaser or runs 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 varies the cam phase by using the hydraulic
force of the engine oil.
|
Operation Principle |
[CVVT System Mode] |
(1) Low Speed / Low Load |
(2) Partial 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 |
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 |
Hyundai Kona (OS) 2018-2023 Owners Manual: Parking Distance Warning (Reverse) system precautions
The Parking Distance Warning (Reverse) system may not sound consistently
depending on the speed and shapes of the objects detected.
The Parking Distance Warning (Reverse) system may malfunction if the vehicle
bumper height or sensor installation has been modified or damaged. Any non-factory
...
Hyundai Kona (OS) 2018-2023 Service Manual: Crankshaft Position Sensor (CKPS) Troubleshooting
Waveform
This example shows a typical Crankshaft Position Sensor(CKPS) and Camshaft Position
Sensor(CMPS) waveform at idle.The PCM controls the injection and ignition timing
by using these signals.
Generally CKPS signal is used to detect the piston's position a ...