What are the methods to control the speed of an automatic transmission car?
3 Answers
Automatic transmission cars control speed through the following methods: 1. Shift into a lower gear to use the engine to control speed; 2. Gently press the accelerator; 3. Apply the brakes. The function of an automatic transmission is to use planetary gear mechanisms for gear shifting, automatically adjusting based on the degree of accelerator pedal pressure and changes in vehicle speed. The driver only needs to operate the accelerator pedal to control the speed. The gear positions on an automatic transmission car are: 1. P (Park) for parking and starting; 2. R (Reverse) for backing up; 3. N (Neutral) for no gear engaged; 4. D (Drive) for forward movement, also known as the driving gear; 5. S (Sport) for sport mode; 6. L (Low) for low gear.
From my over ten years of driving experience, controlling the speed of an automatic transmission car relies entirely on foot operation. The right foot switches between the accelerator and brake: pressing the accelerator speeds up, lifting off naturally slows down, and pressing the brake stops the car. To drive more steadily, look ahead at the road conditions in advance and release the accelerator to coast at the right time. For example, practice maintaining a steady speed by evenly pressing the accelerator on flat roads, avoiding sudden presses or lifts. This not only ensures safety and saves fuel but also extends the lifespan of the brake pads. Remember to gently tap the brakes to prevent skidding on wet roads, and maintaining proper spacing is key to avoiding rear-end collisions. Don’t forget to regularly check the braking system during maintenance—don’t wait until problems arise to regret it. Developing good habits is more important than anything else, as safety is always the top priority.
As a new driver who just got my license, I find accelerating and decelerating in an automatic car quite simple. The pedal on the right is the gas - step on it and the car surges forward; the left pedal is the brake - press it to slow down. When starting off, gently press the gas without being too hasty to avoid sudden jerks. On highways, speed control depends on adjusting the gas pedal depth - for example, to maintain 80 km/h, just keep the gas pedal steady. In slow-moving traffic, avoid constantly braking to full stops; instead, use intermittent braking or ease off the gas for natural deceleration. I often practice turning and slowing down in my neighborhood to get familiar with the car's responses. This type of car is easier to handle than manual transmissions - the key is hand-foot coordination, and you'll get used to it after driving more often.
