How to control the speed of an automatic transmission? Do you keep pressing the accelerator at a constant speed in an automatic transmission?

Automatic transmission cars do not have a clutch because they are combined with the gearbox to achieve automatic speed change. So how do automatic transmissions generally control the speed of the car? Do you need to keep your foot on the accelerator to drive at a constant speed?

How to control the speed of an automatic transmission

Automatic transmission models are also divided into pure automatic and manual transmission.

The manual transmission controls the gear by increasing or decreasing gears. Except that you don't need to step on the clutch with your foot, there is no difference from the manual transmission. To accelerate, downshift and accelerate. To decelerate, step on the brake, downshift and release the accelerator.

Pure automatic transmission models are more diversified, but their actual functions are not as comprehensive as those of manual or automatic transmission models. Generally, automatic transmission models have D gear, L gear, and S gear.

When accelerating, it also depends on how much horsepower is needed. For normal acceleration, use D gear and just step on the accelerator, and the gearbox will automatically downshift. If you want to accelerate faster, you need to use S gear. At this time, the gearbox will be more active in shifting gears and the horsepower output will be greater. If you want to use the gearbox brake to control the speed when going downhill, you need L gear. At this time, you can let the gearbox brake the speed by reducing the throttle, which can reduce the wear on the brake system and improve safety on long descents.

Do you keep the accelerator pressed at a constant speed in automatic transmission?

To drive at a constant speed in automatic transmission, just keep the accelerator pedal still. On highways or other roads with good conditions, you can turn on cruise control. After turning it on, the vehicle will maintain a constant speed even if you don't step on the accelerator pedal. When you use the brakes or step on the accelerator, the cruise state can be released.

Generally, if the obstacle ahead is relatively far away, you can release the accelerator and use the engine traction to slow down gently and slowly. If you need to slow down in an emergency, you must step on the brakes hard.

Note: Automatic transmission does not have a clutch, and the vehicle speed is controlled by the depth of the accelerator and brake.

How to park in automatic mode

1: When parking, slow down first, then step on the brake, and shift into N gear after the car stops. Note: You cannot shift into P gear directly here. When the engine is started, shifting into P gear will go through R gear, which will have a great impact on the gearbox.

2: Turn off the engine. Since the car is not in P gear at this time, the power will not be cut off and the key cannot be removed.

3: Pull the handbrake, release the foot brake, and shift into P gear after the car is stationary.

4: Turn off the power and remove the key