What does CVVT mean?

[Millie]

CVVT is a type of variable valve timing technology in automotive engines. Through electro-hydraulic technology, it controls the opening and closing times of the camshaft, thereby adjusting the valve overlap angle. When the vehicle is driving under light load, the system delays the opening of the intake valve to reduce the intake air volume. During uphill driving or rapid acceleration, when the engine load increases, the system advances the intake valve opening to increase the air intake, meeting the higher load demand. The advantages of the CVVT system include improved air intake, enhanced fuel economy, and better power performance. Improved air intake: Different engine speeds correspond to different intake valve positions to optimize air intake efficiency. At low speeds, the air flow rate is low, so the intake valve should open earlier. At high speeds, the air flow rate is high, so the intake valve should open later. Enhanced fuel economy: Continuous variable valve timing ensures stable cylinder pressure, and the improved air intake efficiency leads to more thorough mixing of fuel and air. This results in more complete combustion of the air-fuel mixture, reducing fuel consumption. Better power performance: Continuous variable valve timing technology maintains cylinder pressure while increasing the quality of air intake, leading to more complete combustion of the air-fuel mixture. As a result, the power performance is significantly improved.