Many people probably don’t know the six cold knowledge about cars.

In a car accident, where can you escape except for the doors and windows?Throttle andbrakeWhy not design it on the side? How long can I drive after drinking? ……Everyone is familiar with cars, but aboutcarHow much do you know about some cold knowledge? Today, the editor has selected six cold knowledge about cars for everyone, so let's learn and understand together.

1

Why are the wheels of buses and trucks convex and concave?

Actually used for busesWheel hubThe front and back are convex facing outwards and concave facing inward.The reason why the concave surface is facing inward is because the concave surface can have more space to install the brake andsteering system.As for why the rear wheels look concave, it’s because the front wheels only have one for steering.tire, And the rear wheel is equipped with twotireAfter installing two tires, the outer tire is fixedly connected with the inner tire of the car with a convex surface, and the visual effect is a concave surface.

2

Why don't the throttle and brake be on the same side

Many novice drivers mistakenly use the accelerator as the brake and the brake as the accelerator when they are driving, which leads to tragedy. Then why not design the throttle and brake on one side separately and then control them by the left foot and the right foot separately? The reason for this design is mainly for safety considerations.

The initial design of the car is to use manual gear, the left foot is used to controlclutch, The right foot controls the accelerator and brake. But now there are more and more cars with automatic transmission, and the accelerator and brake are still put together. The purpose of this design is more to continue people's driving habits. Imagine that if you put the accelerator and brakes of an automatic transmission car aside, even if you are used to this design, you will have a higher chance of using the brakes as the accelerator at this time if you are used to the manual transmission.

And there is another important reason for designing the brake and the accelerator together. That is to hope that the driver can choose between the brake and the accelerator. If the right foot is not on the accelerator, it must be placed on the brake, because it may happen. Prepare for the emergency situation in advance. In addition, for current cars, even if the brake and accelerator are stepped on at the same time, the system will default to the principle of brake priority. So to sum up, controlling the brake and throttle at the same time with the right foot is undoubtedly the most scientific setting.

3

Why is there a line on the outside of the car rearview mirror?

Many people will find left after buying a carrearview mirrorThere is a line on the outside, pay attention to xsjiaoliu, know more and more complete car knowledge. It is even considered a defect in the vehicle manufacturing process. In fact, this line is designed to expand the field of vision while driving, reduce the blind area of ​​the field of vision, and provide certain safety assistance for the driver when merging, turning, and observing the situation behind the vehicle.

4

What is the life span of car airbags?

Theoretically automotiveairbagIt should be consistent with the life of the vehicle, but the actual life of the airbag is not that long. If the airbag has not been detonated and replaced after 8-10 years, pay attention to xsjiaoliu, and know more and more automobile knowledge. Then its quality is difficult to guarantee. Generally, the indicator light of the airbag keeps flashing or keeps on when the vehicle is started or driving, it means that the airbag is malfunctioning, and you need to go to the 4S shop for inspection and replacement in time.

5

Can manual gear be put into gear without stepping on the clutch?

That's right, a manual transmission car can indeed shift without stepping on the clutch.The main secret is to keepRotating speedUnanimous. What should I do? For example, the speed in the third gear is 50km/h and the speed is 2500 rpm, and the speed is 1800 rpm when the speed is 50km/h in the fourth gear. Pay attention to xsjiaoliu, and more and more car knowledge will be known earlier. At this time, add the car to 50km/h in the 3rd gear, release the throttle, do not step on the clutch, and pull the gear to neutral (because the bite force between gears decreases when the throttle is released), when the engine speed drops to 1800 rpm At the time, just hang the gear into 3 gears. But the action must be fast and accurate, and you must not force it in, otherwise it is easy to damage the gearbox.

6

There is also an "escape pod" in the car

In the unfortunate event of a car accident or the vehicle being flooded, the doors, windows,SkylightBoth can be escape routes. But if the vehicle is squeezed and deformed and the doors and windows cannot be opened, the trunk can also become a way for you to escape.In times of crisis, climb to the back row and move the second rowSeatPut it down, drill into the trunk, find the trunk and open itswitch, You can escape smoothly.