A transmission system is a power train that transmits power generated by the engine to the automobile wheels in form of kinetic energy. A basic transmission component comprises of shafts and gears which work in tandem to enables the vehicle’s movement. It converts the engine power into torque which is the rotation force. Torque is then transferred to the axles, which rotates vehicles wheel.
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The engine generates power and sends it to a crankshaft. But you see the power is massive. It is too variable and high to produce usable speed. If the wheels are fixed on the shaft, the vehicle will not only be subjected to high speed but would be very hard to stop.
This is where a transmission comes in. It keeps the RPM of the wheel and engine at optimal rates. It transfers the power to the differentials which rotate the wheel. The transmission does that by using gear ratios.
The transmission uses toothed gears to produce torque. The relationship between the gears is known as gear ratios. The transmission comprises multiple gears or gear ratios. It can switch between these ratios either manually or automatically. The switch can also be directional control, as in forwarding or reverse. Lastly, there is also a single ratio transmission that changes the torque and speed.
In vehicles, transmission is connected to the crankshaft through a flywheel, clutch, fluid coupling or a combination of these three. The transmissions output is then transmitted to the differentials through a driveshaft. The differentials turn the wheel. The primary function of differentials is to allow wheel at either side of the axle to rotate at different speeds as it changes rotation direction and avoids wheel slippage. The differentials may also provide gear reduction.
There are four common types of transmissions which include
- Manual transmission
- Automatic transmission
- Continuous Variable Transmissions
- Semi-automatic transmission
Common transmission Problems
Transmission slipping is when you are driving at a certain gear and then changes automatically for no reason. The car fails to accelerate as it should do.
If your car transmission has a problem, you will also feel the gears are not smooth. The cars also fail to change gears as it normally does. Sometimes the shift gears produce an unusual sound like a clunk.
If your cars delays before engaging into drive then your transmissions may be faulty.
Fluid leakage may be a sign of a bad transmission. Generally, the transmission is sealed, so if you notice a red or brown fluid on the garage floor or driveway, then your transmission is leaking.
Transmission warning light
A warning light does not specifically point out that the transmission is faulty. However, if the warning light occurs concurrently with the above signs, have your transmissions checked by a professional.
The role of transmission in a vehicle cannot be overemphasized. If you notice a problem have it fixed as soon as possible.
Learn more about your vehicle’s transmission: