Do it yourself
Frequently asked questions about cars and motorcycles
Car Tutorial (Do it yourself) Motorcycle Tutorial (Do it yourself) Frequently Asked Questions
  1. Car
    2. :
  2. (Various brands)
    3. :
  3. Various
    4. : Differences between automatic transmission and manual transmission

(Various brands) Various - Video tutorial

Model: (Various brands) Various
Part: Gearbox
Operation: Differences between automatic transmission and manual transmission

Let's see what are the substantial differences between automatic transmission and manual transmission. The latter is based on the coupling of gears and a clutch system, while the automatic is based on the use of a planetary system and a torque converter. The internal combustion engine needs a transmission between the engine and the wheels. In the manual transmission this happens by coupling the gears in three sections: input, intermediate shaft and output. The output gears have a synchronized tooth arrangement, and a sleeve slips over them connecting the gears and the center shaft. The clutch pushes a synchronizer ring between the hub and the chainring so as to have a smooth engagement, but with a decrease in speed during the gear change. Let's see now the automatic transmission has been designed to eliminate the problem of power interruption during gear changes. In the planetary arrangement of the automatic transmission there are two inputs and one output; just vary one of these two input speeds and you will get a different output speed. For this we will need an additional planetary group, which will form a single unit. Two clutch packs are inserted to stop the motion of the chainrings. The two clutches work alternately, so that there is never a loss of power or speed. When it comes to heavy use, the automatic gearbox is more durable because it is simpler. To manage braking on the automatic gearbox we have the torque converter, lacking the clutch which disconnects the engine.


Posted on 19 November 2022 by ScegliAuto

Other guides that may interest you

    Frequently Asked Questions

    • Vari - Issues with the automatic gearbox of Peugeot EAT 8? Read Answer
    • Vari - What problems does the Peugeot EAT8 automatic gearbox have? Read Answer
    • Vari - How much does it cost to replace the car's shift cables? Read Answer
    • Vari - What problem has been identified with the automatic gearbox selector in Mercedes cars? Read Answer
    • Vari - Why aren't the gears shifting properly? Read Answer
    • Vari - Why isn't the gear shift indicator on the car working anymore? Read Answer
    • Vari - How much does it cost to replace the car's gear cable? Read Answer
    • Vari - What does the error message "Transmission problem, bring to the workshop" mean in Mercedes-Benz cars? Read Answer
    • Vari - What problems does the dualogic gearbox have? Read Answer
    • Vari - What problems does the Ford Powershift gearbox have? Read Answer
    • Vari - What problems can the Toyota CVT transmission present? Read Answer
    • Vari - What problems does the ETG6 gearbox have? Read Answer
    • Vari - How to fix the EDC gearbox problem in Renault? Read Answer
    • Vari - Have there been possible issues in the past with the Renault EDC gearbox? Read Answer
    • Vari - Why isn't the selector lever working? Read Answer
    • Vari - What problems does the Toyota MMT gearbox have? Read Answer
    • Vari - How much does it cost to replace the gearbox? Read Answer
    • Vari - What problems can the gearbox of the Keeway Superlight 125 have? Read Answer
    • Vari - Has the Renault EDC gearbox presented hypothetical problems in the past? Read Answer
    • Vari - Why do the gears of the gearbox have difficulty engaging? Read Answer

How to open the bonnet of the Volkswagen Polo

Let's see in this short and simple guide the instructions that will allow us to open the bonnet of the Volkswagen Polo. First of all we open the front door, on the driver's side, and start pulling the opening lever of the engine hood, in order to open the lock; then let's move to the front of the vehicle and unhook the tab that we find on the central part, above the manufacturer's emblem, as shown in the video. At this point we block the bonnet with the lateral rod; then we accompany the bonnet down to close it again!

Watch the video!


by ScegliAuto

More videos