The hidden doorknob seems to be full of science and technology, but it is one of the most advanced designs. Although it has been calculated that a single concealed door handle can be reduced by a negligible 0003cd wind resistance, four door handles can bring a total of 0The wind resistance of the 012cd is reduced, which in turn increases the cruising range by about 6 kilometers per 100 kilometers. This may seem insignificant in numbers, but for new energy vehicles, every improvement in battery life is precious. However, the design was not all smooth sailing, but rather a design choice full of potholes.
The test of the risk of pinching.
First of all, the risk of pinching hidden door handles cannot be ignored. Some bloggers have personally tested that these fashionable doorknobs actually cut off cucumbers, let alone human handsIncreasing this risk seems to be contrary to our original purpose of pursuing car safety.
The cost of learning Xi has increased.
What's more, this design increases the cost of learning Xi using the vehicle. Not only middle-aged and elderly people, but also many people who do not know much about new energy vehicles are also helpless against this hidden door handle. In practice, they may not even know how to turn on this little gadget. This undoubtedly poses a challenge to the ease of use of the car, keeping some potential users out of the car.
The problem of safety hazards.
However, the most critical issue is that concealed door handles pose a safety hazard during vehicle use. In the winter, it becomes common for snow to freeze doorknobs, but this is only a minor issue. In the event of an accident, the doorknob cannot be pulled open and becomes a big problem. For new energy vehicles, the presence of batteries makes the possibility of spontaneous combustion higher than that of fuel vehicles. As a result, in an emergency, concealed doorknobs are likely to become fatal."
The urgent need for legislation.
In the event of a vehicle collision, it can be difficult to expect the occupants to save themselves and find the emergency switch. Outside rescuers also missed the best time to rescue because they couldn't open the car door. Considering the battery characteristics of new energy vehicles, the spontaneous combustion rate is more worrying than that of fuel vehicles. Therefore, hidden door handles can become deadly "obstacles" in such scenarios.
In view of these potential problems, it is necessary for the state to introduce corresponding legislation. At present, many vehicles lock the inside and outside handlebars after starting, especially some Japanese and Korean models (except for high-end models). However, concealed handlebars may cause the doors to fail to open in the event of a short circuit due to lack of power. In contrast, the inner handle can be opened by pulling twice when locked, which is a safer design option. This not only indicates that passengers have a clear desire to open the door and get off the bus, but also provides a more intuitive and reliable way to unlock the vehicle, ensuring safety in case of emergency.
Overall, while concealed door handles look stylish and edgy, they raise a number of problems in practice. We need to pursue a sense of science and technology while not forgetting the original intention to ensure the basic safety and ease of use of the car.
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