World’s 1st CVVD Engine Technology: Improving Fuel efficiency, Performance while Reducing Emissions

Hyundai Motor Group developed the world’s first Continuously Variable Valve Duration (CVVD) technology and will now apply it to mass production. The innovation was revealed alongside the first engine to feature it: the Smartstream G1.6 T-GDi. CVVD optimizes both engine performance and fuel efficiency while also being eco-friendly. The valve control technology regulates the duration of valve opening and closing according to driving conditions, achieving a 4% boost in performance and a 5% improvement in ef