The first automatic transmission device was designed in the USA in the 50s of the twentieth century. This mechanism was invented in order to reduce the load on the driver and simplify the control of the car. Trucks, auto lifts, buses much later began to switch to this type of transmission. Today she has already won the recognition of even ardent skeptics, although some drivers still treat her with a share of distrust.
Automatic gearboxes – types and features
There are several types of automatic transmission, each of which has its own advantages, but is not without flaws.
Classic automatic transmission, in it the main mechanism is a hydromechanical transmission. She gained very popularity, although she has one significant drawback – the overstated gasoline consumption. By the way, such boxes can be equipped with motor lifts and other special equipment.
CVT – with its help, torque changes as smoothly as possible, the transition from one speed to another is carried out almost imperceptibly and quietly. The advantage over “Classics” is economical fuel consumption.
Robotic, which in structure more consistent with mechanical, and control is automatic. The disadvantage is very tangible switching while driving at high speed, and advantages – a relatively low price and saving fuel while driving.
Robotized with two clutches works quickly and softly, but it is expensive and inconvenient when switching. It is most often used in sports cars.
Advantages and disadvantages of automatic gearboxes
The advantages of automatic boxes will be the same for all types of cars, even if it is a mast or a dump truck, not a passenger car. The undoubted advantages of the automatic transmission include an increase in comfort during driving, smooth speed switching, protecting the chassis and engine from overloads, and the possibility of different switching regimen. Due to the smoothness of speed switching, car crossiness increases. This type of checkpoint is perfect for novice motorists, simplifying the machine control process.
The main disadvantages of such transmissions are the high cost of the mechanism itself, oil for it, the high cost of repair and maintenance, a sufficiently high fuel consumption, complexity with the transition to other modes. It is also worth mentioning some psychological difficulties when switching to a machine gun by drivers who are accustomed to a mechanical switching method. Many of them who want to feel like real positions in any situation who like extreme driving and remain adherents of the good old mechanics.