What does DVVT mean?

[VanIris]

Dvvt is the variable valve timing technology for engine intake and exhaust valves. Detailed information is introduced as follows: 1. When the engine is working, it outputs power by mixing the air and fuel vapor entering the engine and burning them in the combustion chamber. 2. Air enters the combustion chamber through the intake valve and is discharged through the exhaust valve after combustion. In this way, during the entire working process of the engine, the intake and exhaust volumes are fixed. 3. The opening and closing of the intake valve are driven by the camshaft, that is, the valve timing depends on the angle of the camshaft.