Signal Waveform

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.