Automatic Transmission Cars

The automatic transmission is a transmission that does automatic gearshift acceleration. To change the speed of the automatic transmission system is used the mechanism of friction and automatic transmission oil pressure. In an automatic transmission planetary gears function to change the speed and torque levels as well as the gears in a manual transmission. 

The tendency of people to use the automatic transmission has increased in recent years, especially for luxury cars, and even certain types are already fully automatic transmission. Trend Of The same happens also on a motorcycle like Yamaha Mio, Honda Vario.

Pieces automatic transmission

Planetary gear in the automatic transmission.

Mode of the automatic transmission

The automatic transmission is controlled by simply moving the lever to the acceleration of certain positions. The position of the automatic transmission lever PRND-structured follow format-L 3-2, as there are from left to right or from top to bottom. Machine can only be turned on position P or N only. 

Generally, automatic transmission modes are as follows: 

P (Park) position to the vehicle is parked, transmission is locked in this position so that the vehicle can not be driven. 

R (Reverse) is a position to reverse the vehicle. 

N (Neutral) is a neutral gear position, engine relationship with the wheels in the free state. 

D (Drive) is a position to go forward under normal conditions. 

2 / S (Second) is the position to move forward on mountainous terrain. 

1 / L (Low) is a forward position on the gear to one, only used when driving on very steep terrain. 

While optional is: 

3 is a position to go forward and the transmission will not move the position of the top gear. 

O / D (Over Drive) is the position of the transmission gear so that displacement occurs at a higher engine speed.

AT variants

4A / T is the transmission variant A / T is often found in many mobil.Teknologi 4A / T is long enough Indonesia.Digunakan present in the 70's era car to sekarang.Mobil that use this system include: Toyota Kijang Krista 4AT and LGX 4AT, Honda CR-V, Honda Fit / Honda Jazz, Toyota Crown, Toyota Camry, Toyota Corolla Altis, Toyota Corona, Honda Civic, dsb.4A / T using the format PRNDS / 2-L / 1 (without transmission D3 / 3 and without O / D). 

5A / T.Tidak much different from the transmission 4A / T, only the format of the format different.If 4A / T is PRNDS / 2-L / 1 then 5A / T has PRND-format D3 (or) O / D-2-1.5 A / T used in cars 1990'an year until now (rarely use the car 5A / T before the era of 90s they still wear 4A / T), among others: the Suzuki Grand Vitara, Honda Brio, Honda Freed, Honda Fit / Honda Jazz , etc..