What is a Drivetrain System?

1 Answers
AutumnAnn
07/29/25 4:58pm
The drivetrain system generally consists of components such as the clutch, transmission, universal joint assembly, final drive, differential, and axle shafts. Its primary function is to transfer the power generated by the engine to the vehicle's driving wheels, creating driving force that enables the car to move at a certain speed. The roles of the drivetrain system are as follows: 1. Achieve speed reduction and torque increase: The engine operates at high speeds but produces relatively low torque (traction force). The vehicle's driving wheels cannot be directly connected to the engine; instead, the drivetrain system reduces speed and increases torque. 2. Enable the vehicle to reverse: In certain situations, the vehicle needs to move backward. Since the engine cannot reverse its rotation, this is achieved through the reverse gear in the transmission. 3. Temporarily interrupt power transmission when necessary: Starting the engine, shifting gears, or braking requires a temporary interruption in power transmission, which is facilitated by the clutch. For prolonged parking or when the vehicle is stationary but the engine remains running, the drivetrain must maintain a prolonged interruption, a function provided by the transmission's neutral gear. 4. Allow differential rotation of the driving wheels: During turns, the distances traveled by the inner and outer wheels differ, with the outer wheel needing to rotate faster than the inner one. This is accomplished by the differential.
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