What does engine CVVL mean?
2 Answers
Engine CVVL stands for Continuous Variable Valve Lift. The details are as follows: 1. Based on control effects, variable valve lift technology can be divided into Continuous Variable Valve Lift (CVVL) and Discrete Variable Valve Lift (DVVL). Traditional gasoline engines have fixed, non-variable valve lift. 2. Function: CVVL technology can reduce fuel consumption. This is because, under small loads, lift control replaces throttle control, reducing throttle losses, increasing intake pressure, maintaining higher cylinder pressure, and minimizing the work consumed during the gas exchange process, thereby lowering pumping losses.
I was chatting with some car enthusiasts recently about new engine technologies, and they mentioned that CVVL is quite popular these days. Simply put, it's a Continuous Variable Valve Lift system. This thing allows the engine's valve opening to adjust automatically, unlike older engines where the valves had a fixed height, with just a set amount of space to open or close. CVVL electronically controls the valve lift range, optimizing air intake—delivering more power at high speeds and reducing fuel consumption in traffic, potentially saving around 10% on gas. A buddy of mine drives a car equipped with CVVL, and he says the engine feels incredibly smooth at startup, with minimal noise, making it feel like driving a brand-new car. However, CVVL technology is mostly found in high-end models from brands like BMW or Honda, so when buying used, make sure to check the maintenance records—don’t cheap out and end up with a faulty one. All in all, it’s a small but innovative step in engine evolution, significantly improving the driving experience.
