Some people say that you can't teach an old dog new tricks. But the Continuously variable Transmission (CVT ) , which Leonardo da vinci conceptualized more than 500 years ago is now replacing planetary automatic transmissions in some automobiles , is one old dog that has definitely learned a few new tricks. SO WHAT DOES THAT CVT MEAN ???????
CVT is a power transmission system from engine to the driveshaaft with the help of which our vehicles move forward. Unlike traditional automatic transmissions , CVTs don't have a gearbox with a set number of gears , which means they don't have interlocking toothed wheels. The most common type of CVT operates on an ingenius pulley system that allows an infinite variability between highest and lowest gears with no discrete steps or shifts. If you are wondering why the word "gear" still appears in the explanation , remember that a gear refers to a ratio of engine shaft speed to the drive shaft speed. Although CVTs change this ratio without using a set of gears. Today several car manufacturers , including General motors , Audi , Honda and Nissan , are designing their drivetrains around CVTs. Some vehicles which are using this system are :-