Vehicle weight = safety? Besides high fuel consumption and poor handling, are there any risks in this respect?

Every car has a very important data, and that is the kerb quality. Generally speaking, it is the weight of the car. If it is too light, it will cause high-speed instability. But if it's too heavy, besides the shortcomings of slow speed increase, high fuel consumption and complicated control, do you know what other shortcomings are there? Let's talk today.

PS: As the 11-day holiday belongs to Golden September and Silver 10, many netizens will ask questions about some models. This time I'll talk about it with the weight of the car body.

Being overweight will bring security risks.

Perhaps speaking of this, many people will be surprised: isn't it safer to be heavier? Actually, it is not. The security risks brought by overweight, especially in the event of an accident, will make it difficult for people to escape. For example, the doors of some heavy vehicles are very thick and heavy. Under normal circumstances, even adult men will have some difficulty in opening the door. If an accident is stuck, it will also bring great difficulty to the rescue.

The inertia is too great to brake in an emergency.

The car has an invisible parameter-inertia, which is very important. Especially at high speed, it is easier to enjoy the benefits of inertial acceleration if the chassis adjustment and engine output adjustment are appropriate. However, if the car body is too heavy, inertia is likely to become a hidden danger, especially when it comes to sudden braking at high speed, it is likely to be unable to stop. Because the increase of weight will also bring about the increase of inertia, the emergency braking distance is also longer.

The load on the suspension and tires increases.

Overweight car body will increase the load of suspension and tires, especially thin tires with low flatness, which is very unfriendly to aki.

Just before the festival, Agui watched the car and tested an SUV. Its body size is just over 4.7 meters, and its curb weight is close to 2 tons. Together with three adult men with an average weight of 70kg, the weight of the whole vehicle reached 2 195kg. Interestingly, the dealer changed the original tire to giticomfort520v 1 privately. 255/45? R2 1, we didn't think anything was wrong. But what is embarrassing is that after we passed a hurdle, the tire actually bulged, and the sales staff of the 4S shop also said that this car is biased, and it is easy to bulge with this tire. ...

We can't evaluate this situation for a while, but the load of car body weight on suspension and tire is real.

Models whose weight is not very "friendly"

Big commander

Curb quality: 1845- 1995kg

Big commander, large size, 2.0T book data 195kW/265Ps, peak torque of 400n·m, and explosion interval of 3000-4250rpm. Therefore, the government intends to enhance the sensitivity of the throttle, so that it can quickly increase the speed and reach the "best in its class". Dynamic response, but in fact, the commander's driving experience is really a bit heavy, lacking the confidence of 2.0T, so the fuel consumption is naturally unfriendly-measured 13l/ 100km.

Hideo? 1.5L

Curb quality: 1270kg

To tell the truth, Yinglang 1.5L version 1270kg is really not fat. After all, 4609/ 1798/ 1464mm is placed there, which can be called symmetry. However, it should be noted that its 1.5L heart is an old L2B engine, and its book data is 83kW/113ps/141n m, which is acceptable for urban traffic. It was really a small horse-drawn cart on the expressway, and the measured fuel consumption was 8.4L/ 10.

Lexus ES200

Curb quality: 16 10kg.

Lexus ES200 is recognized by the industry as immovable. The combination of127kw/173ps/208n m2.0l engine and CVT gearbox can only be said to be barely enough to drive a 1.6 ton car body. Especially after the speed exceeds 100Km, it is really tiring to accelerate overtaking. Even if the throttle is trampled to death for 7000 revolutions, it will be a slow speed increase, and the Buddha can't do it. Although the power performance of lexus ES200 is not flattering, the fuel consumption is really friendly-within 8L/100 km, which is a very good result for a medium and large car.

Bmw X 1? 20Li

Curb quality: 1553kg

Bmw X 1? The 20Li is a very deceptive model. The first one is the tail tag. The old 20Li is a 2.0T version, and it will become a three-cylinder 1.5T version by 2020. Although its curb weight is 1553kg, which is not very heavy for a compact SUV, its three-cylinder 1.5T parameter is103kw/140ps/220n m, which is ok to walk in the city, but it is urgent at high speed. Such a three-cylinder heart drive.

Summary:

In a word, don't be superstitious about "vehicle weight = safety". Overweight body or weight that doesn't match the engine efficiency will bring many bad experiences. After all, lightweight, energy-absorbing structures and intelligent technologies to prevent collisions are very popular nowadays. But the most important thing is that drivers should be calm and not arrogant, so as to ensure the safety of travel.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.