Wikipedia
CVTCS
Continuous Variable Valve Timing Control, which is known as CVTC or CVTCS, is an automobile variable valve timing technology developed by Nissan, similar to Toyota's VVT-i system. It is also used in a twin CVTC configuration on engines such as the Nissan Juke's MR16DDT engine. CVTCS is the successor to Nissan's earlier valve timing implementation NVCS.