See the upper edge of the front bumper, and judge the distance as1m. When you see the lower edge of the front bumper, you should judge that the distance between cars is 2m. I saw that the distance between the front and rear tires was 3m.
Suppose there is a person about 1.7 ~ 1.8 meters tall in front of the left and right, with feet about 10 cm high, knees about 45 cm high and hips about 70 cm low. When you see the front end of the car moving up from the ground to the foot or heel of a person and staying here, the distance between the front end of the car and the human body is about 3 meters.
When you see the front end of the car rising to the height of the human knee (that is, you can see the position of the human knee), the distance between the front end of the car and the human body is about 2 meters. When you see the left and right ends of the front of the car rise to the lower end of the human hip, the distance between the front of the car and the human body is about 0.3 meters.
How to brake smoothly while driving?
1. When the vehicle speed is slightly slow, lean and turn.
Adjust the speed before turning: brake, shift gears and pump oil. In an emergency, if you suddenly notice an obstacle, immediately stop the tilting action, straighten the body bar, and then brake.
2. Is passenger braking stable?
When there are passengers in the back seat, the load on the front and rear is relatively uniform, but with the increase of the weight of people and vehicles, the inertia also increases, and the required braking force is greatly improved. In addition, when braking, passengers in the back seat may bump into the chair because they are unprepared, resulting in instability of the car. It can be solved by teaching the back seat passengers how to sit.
3, downhill braking
Gently squeeze the tail system first, and then squeeze the front system. The purpose is to prevent the front of the car from sinking too much, actively increase the load of the tail wheel and avoid pressing on the pressure bar.