Although comforting, yet many users automatic transmission car that knows how to drive a car A / T is correct, in order to optimize the performance of the car. And comfort can really be felt.
This paper specifically addresses how to drive A / T system "conventional" with four levels of speed. Called "conventional" technology for simple applications, it is not so complex. Yet equipped sport mode / power. Berkendaranya sensation too, does not vary much with the manual transmission car.
The difference is only a matter of berpindahan speed automatic, without the need to depress the clutch pedal. Alternative modes of operation only P, R, N, D, D-3 or 3 (OD), 2, and L.
Here's how to operate:
1. P (park / parking). At the time of the automatic transmission lever was / is shifted to the P position, allowing the car engine is turned on (run) without the car running because the locking system works parking (parking lock assembly).
In the position P, the oil pressure in the transmission that is built, will immediately be returned to the tank. Have not worked on a series of drive transmission control device (control devices). Automatic transmission manufacturers to consider various aspects of rider safety. For example, the engine can only be switched on when the lever is in position P or N (neutral).
Imagine what would happen, if at all alternative modes of transmission, the engine can be turned on. Once the car distarter, straight road. Very dangerous. To be safe, when parking, make sure the gear lever is in position P, avoid sliding cars themselves, without desired.
2. R (reverse / backwards). Enables the car runs backwards. Most car A / T, it will feel a jolt when we shift the gear lever from position P to R. This is due to an increase in oil pressure in the hydraulic system in the transmission space. This increase in oil pressure, or known as a booster, aimed at improving mechanical grip-plate clutch with a steel plate in the automatic transmission system. The goal is to avoid displacement during the slip clutch torque from the engine to the drive wheels.
3. N (neutral / neutral). At the time of the automatic transmission lever is shifted to N position, allowing the engine to live without a car can run. Usually, the position of N selected when the driver wants the car to stop for a moment. For example, when the traffic light turns red. Besides saving brake linings and clutch linings / steel plate, shift lever to the N position more secure, preventing wandering without the desired car. N position can also be selected when parallel parking the car. Same as the lever in position P, when in position N, generally the engine can be turned.
4. D (drive). Transmission lever in position D, allowing the car running / driving with transfer speeds takes place automatically, starting from 1st gear to gear 3rd general (3rd gear with gear ratio 1: 1). Transfer speed automatically without having to step on the clutch pedal, like a car bertrasnamisi manual.
At the time of the lever in position D, move-speed automatic will happen just by pressing the gas pedal. Displacement speed of the car going over the speed increase is monitored by the vehicle speed sensor (vehicle speed sensor / VSS). Lever in position D, allowing the vehicle to accelerate.
You do this simply press the gas pedal deeper. Then automatically gear ratio will drop one level. If the original gear ratio in 4th position, dropped to 3rd, from 3rd down to 2nd, and from 2nd down to 1st. Acceleration is needed when trying to forestall another vehicle or when will spur faster cars.
When the gas pedal is pressed, the voltage is set throttle position sensor (TPS) signal to the electronic automatic transmission system (transmission control unit / TCU or powertrain control module / PCM) for the oil pressure switch to a lower gear position, so that the acceleration occurs .
Gear ratio will increase, when the vehicle speed reaches VSS monitored as a certain speed. Every vehicle, the ratio varies, governed by a computerized TCU / PCM.
5. D-3 or overdrive / OD. Many automatic transmission car drivers who do not understand this one function mode. In fact, a simple function. At the time of the transmission lever is shifted to the position of D-3, or on some types of cars, while the OD button on the gear lever is activated, allowing the displacement of gear ratios from 1st to OD, thus saving fuel and reducing emissions.
D-3 position gear or OD, also allows limiting the maximum vehicle acceleration displacement at 3rd gear. General modes of D-3 or OD feels its function when the car drove at speeds above 60 kilometers per hour.
Try it out, slide the gear lever to position D then stomp on the gas pedal until the car drove at speeds above 60 miles per hour. When he reached the speed of 60 miles per hour range, generally accelerating car reaching 4th level. Press the shift lever to the OD or D-3. So, gear ratio will go straight down to the 3rd position, and stuck in 3rd (did not want to return automatically to the 4th), even if the gas pedal deeper.
Moda D-3 or OD is very helpful when we want to accelerate without having to step on the gas pedal deeper, or when going to overtake another vehicle. But do not forget, after another car passed, slide back the lever to position D or disable the back button OD.
There are often asked, how the security system in an automatic transmission car? How would it be, if accidentally original transmission lever in D, kesenggol and slide to N or R? Do not worry, automatic transmission manufacturers have considered it.
If the shift lever to the desired position, then the computer system that controlled automatic transmission cars TCU / PCM will automatically set the system in N mode or neutral. The system is designed to prevent the destruction of the automatic transmission.
6. Intermediate (2 or D-2). Lever in position 2, allowing prevent operation of speed or a higher gear. In other words, when the lever is shifted to 2, the transmission will work automatically on the 1st and 2st gear, as well as limit the transfer to 3rd gear.
It also activates a mechanical compression on the breaking or the car manual often called engine breaking. Function, when the car drove diturunan, automatic transmission will help keep the car's speed. Please remember, after crossing the normal way, slide the lever back to D.
Activation breaking compression is too long, making rapid transmission oil and transmission heat. Dirty transmission oil too fast, so the shorter the life of the oil. Because it limits the maximum gear in 2nd position, then it helps the car when driving on steep inclines and long. Can withstand engine torque at the desired level.
7. L (low). Not much different with 2 L working mode to limit the speed of vehicles in 1st gear. For persisting in 1st gear, then it is effectively used when the car crosses a steep slope or derivative. Because the car enough power, allowing crossing of difficult terrain. When a normal street, do not slide anymore Lupas lever to D.
Understanding how to work and use the correct automatic transmission not only drive automatic transmission becomes more convenient, but also fuel efficient. Good luck!