These components (or parts) include a torque converter, planetary gears, brake bands, clutch plates, and output shaft, each of which is described in this article.ĭue to the complexity, an automatic transmission is very expensive to rebuild.Īn automatic transmission diagram helps demonstrate the shared complexity of the engineering but illustrates the parts of the transmission very well. Most of those parts make up a few general components that make the automatic transmission work smoothly. The automatic transmission consists of hundreds of parts if we were to be picky. In the case of an automatic transmission, it is much more complicated as a planetary gearset is used. #Automatic transmission driver#In a manual, the driver manually changes the gears, which are directly linked with the gear stick. The gears are there to multiply or divide the torque, making it possible to drive 85mph with a higher gear but the same engine speed as if you drove the car at 20mph in a lower gear. Without a transmission, the engine’s RPMs would directly transfer to the wheels, making them spin incredibly fast and not grip anywhere. On the other hand, when the car must accelerate, the power output of the engine must be controlled and carefully applied. If it did not, the engine would stall due to many reasons. The transmission, however, makes it possible to keep the engine running even when the wheels are stationary. If it would only consist of a shaft, there would not be a need for transmission at all, as the engine could do the job perfectly. It uses fluid, gears, pumps, and much more. The automatic transmission does not only consist of mechanical parts that rotate and transfer power from the engine to the wheels. Matter of fact, it even makes rocket science look like a walk in the park, and here is why: Before we dig into the exact details and the parts an automatic transmission consists of it is important to notice that an automatic transmission is incredibly complex.
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