Everything about Auto Transmission

Auto transmission, automatic transmission, auto, self-shifting transmission, n-speed automatic or simply AT; by all such names, we refer to one and the same thing, which is a type of motor vehicle transmission that while moving, automatically detects the need of what gear ratio is to be maintained at what speed and changes it accordingly that too in a smart way. With the aid of auto transmission, the driver gets freed from the burden of shifting gears manually every now and then as soon as the speed of the car is varied. And in line with other transmission systems on vehicles, even this transmission system lets the internal combustion engine offer an array of torque and speed outputs, which is vital for vehicular travel.

 

The parts of hydraulic auto transmission:

·   Torque Converter – Torque converter is a type of fluid converter, which connects the engine to the auto transmission hydraulically. It is what friction clutch is to a manual transmission. Its role is to direct and decouple the engine power to the gears. It makes the vehicle come to a cessation point even when the engine is running without coming to a stall. In its essence, a torque converter is not the same as fluid coupling.

· Hydraulic controls – Oil pump, under pressure, transmits a special kind of transmission fluid, which is used by hydraulic controls. This makes them control several clutches and bands, which make favourable and advanced changes in the speed of the output premised on the vehicle’s running condition.

· Planetary gears train – This includes planetary gear sets, clutches and bands. All of these are mechanically designed to provide a varied range of gear ratios, which further change the speed of rotation of the output shaft upon which the planetary gears are locked. To make changes in gear’s status, planetary gear set is held stationary by one or two kinds of clutches or bands, letting other members to rotate. This is what is responsible for transmitting torque and providing gear reductions or affecting the overdrive ratios.

Manual controls Vs electronically controlled transmissions:

In this case, the driver assumes full control of gear ratios change (either by moving a gear lever or by the use of buttons or paddles combination). This condition is completely contrary to automated function of the hydraulic controller. By using manual controls, you prevent the happening of unwanted up-shifts and down-shifts, which end up in compromising the vehicle’s balance or traction manumatic shifters. As compared to electronically controlled transmissions, manual controls have not become as popular and accepted for the simple fact that they are relatively complex and expensive. The auto transmissions need only few software transformations. Much to the advantage of the drivers, the vehicles with auto transmissions are easier to drive as compared to the ones with manual transmissions. Besides, due to the complexity in the manually controlled vehicles, the drivers of such vehicles are authorized to drive the electronically controlled ones. But, it is not the case vice versa.

 

Various versions of automatic transmission are doled out by almost all the vehicle brands; out of all, the popular ones are General Motors, Ford, Mercedes-Benz, Honda, Nissan, Volkswagen and Hyundai. The transmission, nowadays, exists in its modified state, promising superior performance version after a version. However, getting such advanced transmission fixed is not every mechanic’s cup of tea. Only experienced professionals, like Kismet Mechanical, know how to get by the job in an impeccable manner. They are not only automatic transmission specialist in Sydney, but they also are recommended for pink slip inspection in Sydney. Hire them!