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Fig 1: Screen Display - E-CVVT Motor Signal Waveform
Courtesy of KIA MOTORS AMERICA, INC.
Fig 2: Screen Display - CMPS Signal Waveform
Courtesy of KIA MOTORS AMERICA, INC.
There is no separate sensor inside E-CVVT. Exhaust side 4-flank type target wheel is applied in order to compare CKPS and CMPS and calculate the valve timing.