Vvt发动机采用可变气门正时技术， 对发动机的气门开启、关闭时间及进气量进行连续调节，从而提高发动机功率，优化扭矩曲线，提升产品的动力性、降低油耗。 丰田的vvt-i是源自于vvt发动机控制技术，由于采用电子控制单元（ECU）控制，因此丰田公司给它 取名为"智能可变气门正时系统"。 Vvt-i系统主要控制凸轮轴气门正时的装置，它通过调凸轮轴转角配气门正时进行优化，从而 提高发动机 在所有转速范围内的 动力性、燃油经济性、降低尾气排放。 但不能调节气门升程。 …

2023年9月17日 · Hyundai engines use cvvt technology to enhance their engines’ performance, and while it’s an advanced technology, it’s not immune to problems. Common hyundai cvvt problems include issues with the timing chain and belt, engine misfires, and poor fuel economy.

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.

2020年9月24日 · What is CVVT (Continuously Variable Valve Timing) System. The CVVT is Hyundai named for his VVT, same as Kia cvvt engine, positioned at hyundai sonata exhaust camshaft, controls the open & close timing of intake valve to improve engine performance.

2025年2月17日 · Kia’s CVVT engines have garnered attention for their innovative design and performance enhancements. However, several recurring problems have emerged, causing frustration among owners. Understanding these issues is essential for maintaining the longevity and reliability of Kia vehicles equipped with CVVT technology.

韩国现代 轿车所开发的CVVT是一种通过电子 液压控制系统 改变凸轮轴打开进气门的时间早晚，从而控制所需的 气门重叠角 的技术。这项技术着重于第一个字母C （Continue连续），强调根据发动机的工作状况连续变化，时时控制气门重叠角的大小，从而改变气缸进 ...

The benefits of Continuous Variable Valve Timing (CVVT) or more generally known as Variable Valve Timing (VVT), is known in the Automotive Industry including after market high performance sectors to improve engine efficiency by a respectable double digit margin. Notable potential of CVVT is exposure to camshaft degreeing.

2006年10月17日 · On the naturally aspirated engine versions, it works on the inlet cam in order to improve low-end torque and driving characteristics. CVVT is based on the principle, using the engine's oil flow, that the engine changes the position of the camshafts in relation to the valves by means of a hydraulic control valve.

• Hyundai®, Kia® and Volvo® have continuous variable valve timing (CVVT) • GM® and Vauxhall® have dual continuous variable cam phasing (DCVCP) • Ford® has twin independent variable camshaft timing (Ti-VCT ... Symptoms include engine light, rough idle, decreased power, decreased fuel economy, engine noise and misfires. ...

韩国现代轿车所开发的cvvt是一种通过电子液压控制系统改变凸轮轴打开进气门的时间早晚，从而控制所需的气门重叠角的技术。 这项技术着重于第一个字母C（Continue连续），强调根据发动机的工作状况连续变化，时时控制气门重叠角的大小，从而改变气缸进气量。