What does VVT I mean when written on a car?

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 effect of turning decay into magic. 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 speed; 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).

is the nature of an engine.

VV means "variable valve timing" in Chinese. The technical principle of engine variable valve timing is to adjust the intake (discharge) volume, valve opening and closing time and angle according to the operation of the engine. Optimize the air intake and improve the combustion efficiency.

Variable Valve Timing (VVT) is a technology used in automotive piston engines. 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. The principle of Variable Valve Timing (VVT) technology is to adjust the intake (discharge) volume, valve opening and closing time and angle according to the operation of the engine, so that the intake air intake volume reaches the best value, so as to achieve the best combustion efficiency and improve fuel economy.

It has the advantages of fuel saving and high power lift ratio; The disadvantage is the lack of speed and torque in the middle section. The VV is controlled by an electronic control unit (ECU). The system mainly controls the intake valve camshaft and has a small tail "i", which is the code name for "intellingence" in English.

These are the literal meanings of "vvt-i".

1. Variable valve timing (VVT) is a technology used in automobile piston engines. VVT technology adjusts the overlap time and timing (some or all of it) in the engine's intake and exhaust systems, reducing fuel consumption and increasing efficiency.

2. Variable valve timing system (VVT, variablevalvetiming), the Weiqiao system adjusts the phase of the engine cam through the control and execution system, so that the time of valve opening and closing changes with the change of engine speed, so as to improve the charging efficiency and increase the engine power.

3. VVT technology has a history of more than 30 years, and the principle is to adjust the intake (exhaust) volume, valve opening and closing time and angle according to the operation of the engine, so that the incoming air volume can reach the best value and improve the combustion efficiency. The excellent cherry wax point is fuel-saving and has a large power-to-lift ratio; The disadvantage is that the torque in the middle section is insufficient.

VVT (VariableValvetiming) variable valve timing system. The system adjusts the phase of the engine cam through the control and actuation system, so that the opening and closing time of the valve changes with the change of engine speed, so as to improve the charging efficiency and increase the engine power.

The principle of engine variable valve timing technology (VVT, variablevalvetiming) is to adjust 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 that it is fuel-efficient and has a large liter ratio.

The disadvantage is that the torque in the middle section is insufficient.

The VVT of Korean cars is based on Toyota's VVT-i and Honda's VTEC technology in Japan, but compared with Toyota's VVT-I variable timing valve technology, VVT is only variable valve technology and lacks timing technology, so the VVT engine is indeed more fuel-efficient than the general engine, but it is not as fuel-efficient as the Toyota and Honda cars of Japanese cars.

BMW has already adopted this technology in previous engines, such as Honda's VTEC, i-VTEC, and Toyota's VVT-i; Nissan's CVVT; Mitsubishi's Mivec; Suzuki's VVT; modern VVT; Kia's CVVT and other products are also gradually being used. In general, it is actually a technology, with a different name.

VVT is a variable valve timing system. The technology used in the VVT engine is continuously variable valve timing technology, which can continuously adjust the valve opening and closing time and air intake volume of the engine, so as to increase the engine power and optimize the torque curve, and the biggest benefit is to improve the power of the engine, reduce fuel consumption.

VVT is a variable valve timing system. The technology used in the VVT engine is continuously variable valve timing technology, which can continuously adjust the valve opening and closing time and air intake volume of the engine, so as to increase the engine power and optimize the torque curve, and the biggest benefit is to improve the power of the engine, reduce fuel consumption.

The principle of engine variable valve timing technology (VVT, variablevalvetiming) is to adjust 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 that it is fuel-efficient and has a large liter ratio.

The disadvantage is that the torque in the middle section is insufficient.

VVT technology has a history of more than 30 years, and in 1980, Alfaromeo used VVT technology for the first time; Honda, in 1989, used VVT technology with variable valve lift capability for the first time; BMW, in 2001, replaced the conventional throttle for the first time with VVT technology.

VVT Chinese means "variable valve timing", due to the use of electronic control unit (ECU) control, the system mainly controls the intake valve camshaft, and a small tail "I", which is the code name of the English "Intellingence" (intelligence). These are the literal meanings of "VVT-I".