Variable valve timing (VVT) is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems.

2021年1月11日 · Variable valve timing (VVT) plays an important role in bridging performance with efficiency. Should you disable VVT on your hot rod machine? We examine the options.

2015年7月14日 · VVT is abbreviation for Variable Valve Timing. In VVT system, the time of opening and closing the valves is further optimised for multiple engine speeds.

2024年10月31日 · VVT, or Variable Valve Timing, is a groundbreaking car engine technology that’s transforming engine performance. This advanced system dynamically adjusts the timing and duration of engine valve opening and closing. It optimizes engine performance in real-time, akin to having a sophisticated engine assistant.

2024年12月9日 · Found in all late-model engines, VVT eliminates this compromise by dynamically adjusting valve timing based on engine speed and load. VVT allows manufacturers to achieve higher horsepower and torque without sacrificing fuel efficiency or emissions compliance—truly letting them have their cake and eat it too.

可变气门正时（英語： Variable Valve Timing ，簡稱： VVT ），是一种用于汽车 活塞式发动机中的技术。VVT技术可以调节发动机进气 排气系统的重叠时间与正时（其中一部分或者全部），降低油耗並提升效率。

可变气门正时（VVT, Variable Valve Timing），是一种用于汽车活塞式发动机中的技术。 VVT技术可以调节发动机进气排气系统的重叠时间与正时（其中一部分或者全部），降低油耗并提升效率。

2024年10月4日 · Variable Valve Timing, commonly referred to as VVT, is an innovative system in modern automobile engines that enhances performance, efficiency, and reduces emissions. The primary role of VVT is to alter the timing of the engine’s intake and exhaust valves according to the vehicle’s speed and load conditions.

2021年6月6日 · What Is a VVT-i Engine? VVT-i stands for Variable Valve Timing-Intelligence, which is Toyota’s name for the variable valve technology it uses in most of its vehicles.

When you want to boost your car’s performance and fuel efficiency, Variable Valve Timing (VVT) is a key technology to consider. It lets the engine tweak the timing of the intake and exhaust valves, which helps with power and fuel economy. VVT started with early car innovations and has grown into advanced systems like Honda’s VTEC.