What is cvvd technology?

This technology refers to the technology of continuously variable valve duration.

CVVD technology is the fourth generation engine technology successfully developed by Hyundai-Kia Motors for the first time in the world. Its biggest highlight is the variable valve technology, which generally controls the intake air volume by controlling the valve opening timing and adjusting the valve depth, thus optimizing the engine performance and fuel efficiency.

However, CVVD technology has broken through the limitation of 133 engine development history and realized the free adjustment of valve opening duration. The valve opening duration can be reasonably adjusted according to the different driving conditions of the vehicle, and the ultra-precision valve opening state can be adjusted within 500ms 1400 steps, so that the effective compression ratio of the engine can be flexibly adjusted within a wide range of 4: 1 to 10.5: 1.