When I was just learning about the car, the most annoying thing was that I always wanted to stick my head out of the low seat. I was sure that the huge A-pillar did not block the kittens and puppies. It was a long time later the car was driven for a long time. The seat must be pushed forward and the backrest angle must be kept to a minimum, in order to fight for more visual space. Although ridiculous, it always works.
Xiaobai gradually became an old driver, and questions and complaints came. To tell the truth, the speed of automobile development is really not as fast as we think. There is still a distance of three bottles of health care from 'Advanced'. Well, I only drink now. From the boiled water.
Although drinking boiled water, but can not stop 80 Jun love to ponder the heart. In the end is why the development of automotive technology for so long, the blind spot problem can not be solved?
This issue should be split into two parts.
First, the material determines the safety ceiling
Since the grandfather application of Carl Benz's grandfather had applied for a patent that year, the car was born for 132 years. If you count the carriage era, this time will be even longer.
Although car bodies are popular in horse, box, streamline, ship, fish, wedge, and bullet-type structures, material technology has not kept up with this progress. You may recall that the use of body materials is not In recent years only attracted attention?
There is a joke in the industry that material science is a bottomless pit. Even if you take gold, you will not be able to pull water. Although the country invests a lot in scientific research in the field of materials every year, there are very few products that can really reach the practical stage. Of course we can say Carbon fiber has good characteristics, but due to its high price and complicated process, it is almost ignorant. Even BMW has planned to weaken the carbon fiber input and it has to be frustrating.
Due to the large size of the car, blind areas are inevitable. Therefore, we only discuss the blind areas that can be solved, such as the blind spot of A-pillars that people are most concerned about.
The early A-pillars were only designed to support the front windshield. Most of them would be made very thin. There would be no problem with blind spots. For example, in the 1990s, the pillars were more slender and the field of vision was open. In the more distant 50 years, In the 1960s, A-pillars were designed to be more exaggerated because they only had finger thickness.
However, because of the lack of attention paid to the safety of A-pillars, the United States had a large number of car rollover incidents in the United States at the time and suffered heavy losses. Everyone gradually realized that the A-pillar played a key role in collisions and rollover accidents. Intentionally increase the size of the A-pillar.
The situation completely reversed may also be attributed to the roof pressure test initiated by the United States IIHS in 2008. Unexpectedly, the slim A-pillars are completely unattractive. Because the material strength is not enough, manufacturers are trying to obtain more. With a high score, naturally only the materials are piled up and the A-pillars are thickened. Therefore, the A-pillars gradually become the current state.
Second, for the design of compromise
In addition to the size of the A-pillar view, there is a rear-view mirror next to it.
Although the rear-view mirror mounted on the hood of the old car can effectively solve this problem, most cars now design the front streamline to reduce the air resistance when driving, if the rear-view mirror Put on the hood is neither beautiful nor easy to install. And the rearview mirror is farther away from the driver, the viewing range and comfort are reduced a lot. Even more embarrassing is that there are sometimes A column to block the rear view The situation of the mirror.
The popular exterior mirrors of Hyundai Motor are installed at the front of the window and close to the A-pillar. This is one of the reasons for the increase of the blind area. As to why it is not installed on the door, the main reason is that it will increase the wind resistance.
Although there was disagreement at the beginning of the change, it was seen that the security was really improved and this voice was much less. And because the blind spot can still be mitigated by some technical configuration or special design, such as various cameras installed outside the car. Or double A-column design (such as Buick GL6), we do not have much reason to ask manufacturers to change back to the previous fine A-pillar design.
However, the problem is not absent. Although the double A-pillar design does alleviate the blind spot problem, it also brings many problems. For example, the double A-pillar design often requires steeper window angles, and the A-pillar has a larger footprint, which needs to be squeezed. The front space, as far as the aesthetics are concerned, is not mainstream, and it is mainly focused on MPV.
Third, can the blind area be solved?
It is almost certain that it is unlikely that it is expected that material progress will solve the blind spot of the A-pillar. Before the full-scale popularization of autopilot, the external shape of the car will remain in this state for a long time. It is possible to solve this problem and still configure the technology. The use of.
For example, the new Haval H6coupe's 360-degree look-around function captures images of the vehicle's surroundings through a total of four cameras located at the center of the front of the vehicle, in the middle of the rear of the vehicle, and under the rear mirrors on both sides, and is stitched by the software into a complete look-around image and superimposed on the dynamic guidance. In the end, the video signals from the four parties will eventually be presented on a 9-inch color LCD screen. Although this problem cannot be solved 100%, the effect will be much better.
Unfortunately, due to cost reasons, similar configurations are rare in low-level models, and similar benefits may take a while to fully arrive.
798 summary:
Unfortunately, the blind spot problem can hardly count on the advancement of materials technology. In the short term, we only hope to reduce the cost of the camera and improve the night detection level of the camera. From this point of view, the car has been 'unrelentless' for many years. It is time to initiate an onslaught. .
