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USED TRANSMISSION

The transmission system is an important criterion to consider when buying a car. Two or four-wheel drive, traction or propulsion… each type of transmission has its advantages and disadvantages. Depending on the use of your vehicle, either will be more or less suitable. All Solutions Auto Parts explains the operation of the transmission and the difference between the different existing systems.

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Features of Transmission

Generally speaking, transmission refers to the whole system for transmitting torque and power from the engine between the engine and the driving wheels of the vehicle. In addition to its role of transmitting engine torque to wheels, it has also other crucial functions. Distribute power between the two or four-wheel drive depending on their speed, even when the speed differs from one wheel to another. Adjust engine power based on vehicle speed, accelerations, and decelerations. The transmission consists of the flywheel, clutch, gearbox, differential or self-locking bridge, and drive shafts.

These two pieces are closely related. They connect the engine to the gearbox and allow the torque and engine power to be conveyed to the gearbox. Depending on the position of the clutch pedal, the flywheel and clutch can be joined or disjoined. When joined, energy passes from the engine to the gearbox. On the contrary, when they are disconnected, there is no more engine torque transmission. This allows the driver to switch gear or stop the vehicle to go-to neutral.

The function of the differential is to transfer the torque delivered by the gearbox to the drive wheels, via the drive shafts. Thus, it can transmit a different speed of rotation to each wheel when necessary. For example, in turns, the wheel outside the curve always has more distance to travel than the other. To avoid a loss of grip, this wheel must rotate faster. This is possible thanks to the differential.

The driveshafts are directly attached to the drive wheels, which they drive when rotated by the self-locking bridge. By this rotational movement transmitted to them, the drive wheels then drive the vehicle.

There are 3 types of transmission: traction, propulsion, and all-wheel drive.

Traction is the most commonly used type of transmission on current automobiles. Both front wheels are driven and each is driven by a half-drive shaft. There are two possible configurations of the front transmission: with a longitudinal (perpendicular to the engine axis) or transverse (parallel to the engine axis). The latter is newer and much more compact. Also, it has the advantage of offering better handling. The traction system offers several advantages: The vehicle has a very good traction force in all conditions, including on snow or slippery floors. It offers better safety in winter. All components involved in the transmission are in the same location, allowing the system to take up little space. This space-saving benefits the vehicle’s interior. This is the system with the best transmission efficiency. It consumes less fuel. The main disadvantage of traction is the risk of spinning both front wheels when starting or accelerating at a low gear ratio. This risk increases in winter, on snow or ice.