With the improvement of people's living standards, people are shifting from spiritual life to material life. Small houses were replaced by big ones, and bicycles, motorcycles, and buses were replaced by private cars. Many also buy their own cars. My favorite car provides a fast and comfortable means of transportation for everyday travel.
Most automotive transmissions are divided into two types, one is manual transmission and the other is manual or automatic transmission. So how do you drive an automatic transmission up and down a hill?First of all, you have to understand a truth: automatic cars also have different gears. The P gear is a parking gear and is usually only used when the car is stopped and the engine is turned off.
R is in reverse gear, needless to say, it is only used in reverse gear, so there is no need to move. N gear is neutral, and it is advisable to stop briefly while driving, such as when waiting for a traffic light. The D file is the most proficient equipment that everyone uses, so I won't go into detail here. D3, D2 and D1 are also drive gears and can only be used in special road conditions. See below for details.
It is generally accepted that the higher the gear, the less power and the less resistance. Therefore, when starting, especially on steep hills, it is best to start in low gear, otherwise you will hear the sound of the car working particularly hard, like a person pulling the car with all his might. Worry about being too thin and not enough torque: obviously this is for a car with a large displacement.
Including new energy vehicles, it doesn't matter, but if you have a CVT gearbox, a self-aspirated 15L engine, and there are four fat people sitting in the car. Climbing steep slopes is really tiring. What should I do if I encounter this situation?It is best not to press the gas pedal. The biggest drawback of the CVT is that it can't handle a lot of torque.
Even if you don't understand cars, you can learn with a little care, there are some large displacement CVTs, not even 20T. If the road conditions allow, it's best to speed up and speed up the uphill slopes. We all know the principle of conversion of kinetic energy into gravitational potential energy. If you haven't bottomed out yet, you can switch to S (Sport, Sport mode) or L (low-speed, lock-up low-speed) for more torque.
If the slope is too steep, you can't let the four fat men behind you slide down, and the CVT is a steel belt drive, which is easy to slip and idle under extreme conditions. For example, AT and dual-clutch transmissions usually don't suffer from a lack of torque. Generally, models above 15T are equipped with AT gearboxes, and climbing is not a problem. The efficiency of the dual-clutch transmission is high.
Even if you're not sure about the car's power, you can still shift into a lower gear to exit. It is much easier to drive an automatic car than a manual one, and there is no problem with starting and turning off the engine on a slope with the manual transmission, as long as you control the speed and keep it in D gear. In uphill and downhill scenes during daily commuting in the city.
The basement has an entrance and exit. Let's take the driveway and going down to the basement as an example. The first thing to do is to go up the mountain. When driving uphill, you need to pay attention to the roll of the car. Many friends believe that the automatic transmission will not cause the car to slide sideways when going uphill. This is wrong.
Although many models are now equipped with hill start assist, you still need to press the accelerator pedal when you release the brake pedal when driving uphill. In general, the braking force provided by hillside assist is limited in time. After about two seconds, the braking will be canceled. If you don't press the gas pedal in time, the car will continue to reverse.
When going downhill, pay attention to controlling the speed of the car, and if the slope is too steep, consider engaging the transmission in a lower gear, maintaining the low gear and using the engine brake. When going down a long hill, use L or low gear in manual mode and use engine drag to control the speed. This is to reduce the frequency of braking when descending.
Overheating of the brake disc can lead to brake failure and longer braking distances due to the heat generated by frequent use of the brakes. On the ice and snow roads in the north, you should hang L gear or manual low gear when going downhill, because the tires have no traction when the ice and snow road is downhill, light braking will cause the vehicle to skid, the reliable way is to use the low gear to drive the car, control the speed, try not to step on the brakes.
All in all, if the brakes are too strong when going downhill, it will lead to the failure and failure of the braking system, which is very likely to cause serious accidents. Therefore, it is important that you do not apply the brakes too often when driving downhill with an automatic transmission. When exercising outdoors, it is best to switch to manual mode before descending, and then gently press the foot brake to control the slow descent of the vehicle.
Automotive knowledge