Despite CVT being the newer, more technologically advanced system between the two, it is not necessarily the right choice for every vehicle. Depending on numerous factors, such as size of the vehicle, engine type and more, the standard automatic transmission may very well be the right choice. Both transmission types certainly each have their own merits, and it is all dependent on outside factors. Find out more about powertrains in hybrid cars! Watch this first!
Is outdated information preventing your vehicle from being at its best? This entry was posted on Thursday, October 26th, at pm and is filed under Technology , Tips and Tricks. You can follow any responses to this entry through the RSS 2. Both comments and pings are currently closed. Automatic Transmission vs Continuously Variable Transmission The general understanding of most drivers is that you have two choices when it comes to the transmission in your vehicle.
In order to see how a CVT works, How Stuff Works explains , you need to understand a manual and a traditional automatic. A manual has a set number of gears, and the driver determines what gear ratio they need. An automatic also has a set number of gears, but it uses a hydraulic system that responds to pressure created by the conditions to determine the gear needed without any input from the driver.
A CVT is similar to an automatic in that it doesn't use any input from the driver, but that is where the similarities end. A CVT doesn't have any gears. Instead, it has two pulleys. One pulley connects to the engine, and the other connects to the wheels. A flexible belt connects the two pulleys.
The width of the pulleys changes depending on how much power the vehicle needs. When one pulley gets larger, the other one gets smaller. Since neither the pulleys or the belt are fixed, they can provide an infinite number of gear ratios, unlike the automatic, which has a set number of gears.
Not all CVTs are created the same. The most common type is the pulley-based, but some other types include the Toroidal CVT, which uses rotating discs along with power rollers to produce the same result as the pulleys.
The hydrostatic CVT uses pumps to control fluid flow, which then produces a rotational motion. Toyota recently made some changes to its CVT.
CNET says it now uses what they call a Launch gear to provide drivers with the feeling of a conventional transmission. The launch gear is almost like the first gear in a regular automatic transmission.
As the vehicle speeds up, the transmission will switch this out, so it starts working as a CVT. Toyota says that using these new fixed gear ratios will not only feel more like a regular transmission; it will also increase belt efficiency and improve performance. One of the advantages of a CVT is its ability to continuously change its gear ratio. This means that no matter what the engine speed it, it is always performing at its peak efficiency.
CVTs often offer better fuel economy as a result, especially when driving in the city. Digital Trends says that most cars equipped with CVTs offer a smoother ride than a similar car with a regular automatic. This is because the transmission never shifts. There is no abrupt downshifting when the car needs additional power, and there is no feeling of gear hunting that you sometimes feel with a traditional automatic. A CVT is lighter than a traditional automatic, and this, combined with the smoother operation, helps to improve the fuel efficiency of vehicles that come equipped with a CVT.
While CVTs are not available in all cars and SUVs at this time, they operate in a way that maximizes the fuel efficiency of your car. Rather, it uses 2 pulleys linked by a belt.
It's a bit like a snowmobile transmission: One pulley connects to the engine, the other one links to the transmission. The belt transfers the power between them. As the name suggests, this transmission modifies setups continuously. This allows the vehicle's engine to run more efficiently. While you drive a CVT car similarly as a traditional automatic trans, the system, however, is significantly different. A standard transmission has a set configuration based on how it's thought the vehicle will be used.
An economy car or truck is set up with a transmission that will capitalize on the engine's MPG performance, at the cost of horse power. A CVT is able to make the most of both scenarios as a result of its configuration. There are several practical reasons for purchasing a vehicle with a CVT, yet one of the most usual reason is that it will save you cash.
Unlike typical automatics, the CVT can change the gear ratio forever to maintain the engine running at peak efficiency. On the whole, the more gears offered in a typical automatic transmission, the better engine power is optimized. Even the most advanced traditional transmissions are topping out at 10 gears, while the CVT has an infinite quantity of combinations leading to much better gas economy. While it's not an universal truth, normally CVT transmissions are typically more lightweight and smaller sized than a conventional automatic transmission.
CVTs occupy much less room and also weigh less than their conventional equivalents.
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