What does the 12-speed automatic transmission mean?
3 Answers
Automatic transmission 12-speed refers to the steep slope gear and long slope gear. The following is an introduction to the functions of the automatic transmission 12-speed: 1. Steep slope: This gear is selected when going up and down very steep slopes. After shifting into 1st gear, the car will always remain in 1st gear and will not shift to the other three forward gears. This ensures sufficient power when climbing and maximizes the engine braking effect when descending. 2. Long slope: This gear is selected when encountering long-distance slopes. The control unit automatically shifts between 1st and 2nd gears based on the driving speed and throttle opening. This avoids unnecessary shifting into higher gears and better utilizes the engine braking effect when descending.
As someone interested in automotive details, I believe that a 12-speed automatic transmission refers to a gearbox with 12 forward gears that can shift automatically, which is significantly more than older models with 4 or 6 gears. These gears allow the car to transition smoothly at different speeds and throttle inputs, keeping the engine RPM in the efficient range, resulting in a smooth and fuel-efficient drive. This design is commonly used in modern luxury sedans and pickup trucks, such as certain models from Ford and BMW, where the multiple gears optimize acceleration performance and climbing ability. Although it may sound complex, the computer controls it precisely, so you won't feel any gear-shifting jerks during daily driving. The multiple gears also help reduce emissions, marking progress in automotive technology. However, when buying a car, you should also consider the higher maintenance costs of such transmissions, requiring regular fluid checks.
After driving for over twenty years, I've found that a 12-speed automatic transmission means there are 12 speed options that change automatically. During normal driving, stepping on the accelerator automatically shifts gears up or down without effort. The advantage is that it's quieter and more fuel-efficient on highways. Older automatic transmissions, like 4-speed ones, tend to jerk during acceleration, whereas this one is much smoother. My experience is that the more gears there are, the better it is for long-distance travel, as the engine works more evenly. But remember, don't assume it always saves fuel—the actual effect depends on driving habits. For example, in stop-and-go city traffic, it doesn't make much difference in fuel consumption, but new cars emphasize this feature to improve comfort.