Variable valve lift (VVL) is an automotive piston engine technology which varies the height a valve opens in order to improve performance, fuel economy or emissions. There are two main types of VVL: discrete, which employs fixed valve lift amounts, and continuous, which is …

2020年1月19日 · 到了80年代末，随着ecu+电喷车型的普及，一项一直以来只是设想的技术终于开始被本田大规模应用在车上，那就是vvt和vvl技术。 说起这项技术，我首先给大家降为解释一下其原理吧。

日本本田公司是使用变凸轮的可变气门技术的先锋，在80年代末发表了他著名的VTEC (Valve Timing Electronic Control=电子控制气门正时技术)。 首先配置在Civic、CRX和NS-X上，随后渐渐地成为了多数车型的标准配置。 在图中我们可以看到有两组有着不同形状的凸轮，用以达到不同的气门正时和升程。 其中一组在正常转速的工况下起作用，也就是日常使用的4500rpm以下。 另外一组则在高转速下替换作动。 很显然，这样的设计并不能达到气门正时的连续可变，因 …

Several car manufacturers use Variable Valve Lift (VVL) technology. For example, Honda uses i-VTEC (Intelligent Variable Valve Timing and Lift Electronic Control) in many of its models, including the Civic and Accord. Toyota employs VVT-i (Variable Valve Timing with intelligence) in models like the Camry and Corolla.

到了80年代末，随着ecu+电喷车型的普及，一项一直以来只是设想的技术终于开始被本田大规模应用在车上，那就是vvt和vvl技术。 说起这项技术，我首先给大家降为解释一下其原理吧。

2020年2月11日 · In 1989, Honda launched, in Integra, the world’s first commercial DVVL system in a motor vehicle engine called the variable valve timing and lift electronic control (VTEC) system [ 10

VTEC and VVT-i systems were developed by Honda and Toyota respectively in order to improve the efficiency of car engines. VTEC (Variable Valve Timing and Lift Electronic Control) is a valvetrain system developed by Honda that allows engines to achieve turbo level specific output without the bad fuel efficiency that turbocharging normally ...

2021年5月6日 · Ever since Honda introduced the VTEC (Variable Valve Timing & Lift Electronic Control) engine in the late 1980s, automakers have been devising various ways to adjust the engine’s valve timing for the sake of emissions and performance.

This page lists the L15BE (with VVL) specifications for the engine built by Honda. Where listed, power output figures are based on the most powerful production variant of that engine, because some manufacturers use different engine maps to tune the same engine for better fuel economy, performance or to differentiate models in the range.

The Honda i-VTEC (intelligent-Variable Valve Timing and Lift Electronic Control) system provides continuous cam phasing (VVT) and discrete variable valve lift (DVVL) control using the cam profile switching (CPS) concept.