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What are the three functions of a transmission?

2 Answers

EmilianoDella

07/24/25 11:06pm

The three main functions of a transmission: 1. Change the transmission ratio: This alters the vehicle's driving speed and the torque on the driving wheels, allowing the engine to operate under the most favorable conditions. During driving, the engine works in different states to meet environmental needs due to varying surroundings. 2. Enable reverse driving: In real-life situations, vehicles often need to move backward. However, the engine's crankshaft can only rotate in one direction. Reverse driving is achieved through the transmission, which includes a reverse gear, enabling the vehicle to move in reverse. 3. Interrupt power transmission and achieve neutral gear: When the clutch is engaged, the transmission does not output power. Similarly, when the clutch is disengaged but the transmission is in neutral, it also does not output power. This function allows the driver to leave the driver's seat without turning off the engine. The transmission's ability to interrupt power transmission is also used when starting the engine, shifting gears, or when the vehicle needs to stop.

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VanessaMarie

08/10/25 3:16pm

The transmission in a car has three main functions: first, to change the gear ratio, providing strong thrust at low speeds, such as when climbing hills, and ensuring fuel efficiency and smoothness during high-speed cruising; second, to enable reverse driving, making it easy to back up when parking or turning around; third, to interrupt power transmission, such as when the car stops at a red light but the engine doesn't shut off. As a daily driver, I particularly value how these functions enhance comfort—automatic transmissions are super convenient for city commuting, eliminating the need for manual gear shifting. If an older car's transmission isn't working well, maintenance like fluid replacement can prevent sluggishness. Remember, smooth driving extends the lifespan of components—avoid slamming the throttle to shift gears on the highway. In short, it makes commuting safer and more efficient, where peace of mind and fuel savings are the ultimate goals.

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