What is the difference between vvL and vvT engines

VVL is the abbreviation of Variable Valve Lift, which means variable valve lift. The valve lift of a conventional gasoline engine is fixed and immutable. That is, there is only one cam profile for camshafts.

This makes it impossible for the lift to respond well to both high and low speeds. The valve lift of a conventional gasoline engine – the cam profile design is a balanced choice for the engine in all operating conditions. As a result, the engine does not get the best high-speed efficiency or the best low-speed torque.

But the most balanced performance in all operating conditions is obtained.

With the use of the VVL, the engine can get a valve lift that meets the needs of both high-speed and low-speed areas. This results in improved engine high-speed power and low-speed torque.

Engine Variable Valve Timing Technology (VVT is the abbreviation of Variable Valve Timing) is based on the principle of adjusting the amount of intake (exhaust), valve opening and closing time, and angle according to the operation of the engine. The amount of incoming air is optimal, and the combustion efficiency is improved. The advantage is fuel saving and the power-to-lift ratio is large; The downside is that the mid-range rpm torque is insufficient.

The VVL is BYD's own electric valve.

VVT is a variable valve technology, both of which increase engine torque!

A VVT engine is an engine with a variable valve timing system. VVT stands for VariableValvetiming, which is the Variable Valve Timing System. The advantages of automobile engines using VVT system are fuel economy and large power-to-lift ratio; The disadvantage is that the torque in the middle section is insufficient.

The VVT system can adjust the phase of the car's engine convex and wide wheels according to the configured control and actuation system, so that the valve opening and closing time changes with the change of engine speed, thereby improving charging efficiency and increasing engine power. VVT Technology has a history of more than 30 years. In 1980, Alpha Wolf used VVT technology for the first time.

Honda first used VVT technology with variable valve lift in 1989; In 2001, BMW used VVT technology for the first time to replace the traditional throttle Qingqiao.

The so-called VVT variable valve timing, to put it bluntly, is to find a way to change the cam and then change the characteristics of these two curves, such as the advance and delay of the start and end points and the control of the maximum lift. When the engine of the car is at low speed, it is required to close the intake valve in advance, and to meet the requirements of closing the intake valve in advance at low speed, the maximum torque can be increased; When the car engine is at high speed, the intake valves need to be closed later, which increases the maximum power.

Millions of car purchase subsidies.

The technology adopted by the VVT engine, namely the continuous variable valve timing technology, is able to continuously adjust the valve opening and closing time and air intake volume of the engine, so as to increase the engine power, optimize the torque curve, improve the power of the product, reduce fuel consumption. VVT technology is the trend of car power development. Here's what does the VVT engine mean I brought to you, I hope it will be helpful to you.

VVT is an abbreviation for VariableValvetiming, which refers to the variable timing valve system. The technology itself is not magical, but it has a certain ability to transform decay into magic. Efficacy.

It is characterized by ensuring stable combustion, reducing fuel consumption, effectively improving hydrocarbon and nitrogen oxide emissions, and at the same time expanding volumetric efficiency and improving combustion performance. Of course, the principle of VVT technology is actually very simple: because the engine needs different power at different times, VVT technology adjusts the air intake volume by adjusting the valve opening, so that the engine has a more ideal working condition at different speeds

Delay the opening time of the intake valve, reduce the valve overlap angle, stabilize the combustion state at idle, reduce fuel consumption and pollution emissions under medium working conditions (driving at a constant speed at medium speed), and improve engine work efficiency at high speeds; By opening the intake valves earlier and increasing the valve overlap angle, more torque can be obtained during low-speed and heavy-duty operation (starting, acceleration, climbing).

Explanation 2, VVT engine, CVVT engine, VTEC engine are actually the same generation of technology gasoline engine, they all refer to the use of continuous variable valve timing technology, as well as the use of variable intake and exhaust manifold length technology, according to the different working states of the engine, by adjusting the timing of valve closure and the length of the intake and exhaust manifold, so as to improve the power performance of the engine, improve fuel economy.

The advantages are: 1. Low fuel consumption; 2. Strong power; 3. Environmental protection.

The disadvantages are: 1. The engine relies too much on electronic technology; 2. The requirements for gasoline labeling are increased.

Explanation 3: The technology used in the VVT engine, that is, the continuous variable valve timing technology, which can continuously adjust the valve opening and closing time and air intake of the engine, so as to improve the engine power, optimize the torque curve, improve the power of the product, reduce and reduce fuel consumption. VVT technology is the trend of car power development.

What does VVT engine mean? A lot of people don't know what a VVT engine means yet. Now let's take a look!

1.Refers to the fact that the engine is equipped with "Variable Valve Timing System" technology. VVT (Variable Valve Timing) is a variable valve timing system.

The system adjusts the phase of the engine cam through the control and actuation system equipped with a valve opening and closing time that varies with the engine speed, thereby improving the charging efficiency and increasing the engine power.

Technology has been around for more than 30 years. In 1980, Alfaromeo first used VVT technology.

3.Honda first used VVT variable valve lift technology in 1989.

4.BMW first used VVT technology in 2001 to replace the traditional throttle.