In recent days, the cold wave swept through most of the country, many places have snowed heavily, many car owners experienced a night of cold attacks in the cold wind shivering, but found that the hidden door handle frozen, how can not be bounced, even with the mobile phone APP to bounce the door can not be done, and even some car owners pour hot water, hammer knocking, etc., people are frozen enough to choke the door can not open.
Today's new energy vehicles, without hidden door handles, as if they do not belong to high-end cars, all the hidden door handles, whether it is caused by new forces or traditional car companies, if not equipped with a hidden door handle, it seems that it can not be called new energy vehicles. So what are the benefits of hidden door handles, so that a car company is so flocking, in addition to the sense of technology and reduced wind resistance, what are the advantages and disadvantages worth praise.
Compared with mechanical door handles, car companies claim that hidden door handles can effectively reduce the wind resistance of the body, and the reduced wind resistance coefficient is 00003%！According to this coefficient, if you drive in the city for a long time, the average speed is 40 km h, and the hidden door handle can be reduced by 0005kwh 100km energy consumption;At a speed of 80 km h, the energy consumption can be reduced to 012kwh。In normal daily driving situations, the hidden door handle can increase the vehicle's range by about 5 kilometers.
However, the failure of the electronic control system of the hidden door handle is really affecting the driver's driving safety, and today a brand car cannot be rescued in an accident because of this kind of door handle design, resulting in the loss of the best time to rescue;At the same time, the door handle motor is installed in the door, its maintenance cost, daily maintenance and failure rate are higher than the traditional handle, and it becomes more difficult to open the door, and the cost of learning Xi is higher for some elderly people, which is the reason why many people hate this kind of door handle.
Tesla, the first to apply hidden door handles, officially said that if the door is frozen, it is recommended to use the bottom of the fist to tap the door handle a few times to de-ice, but Tesla in Shanghai may not have thought that in the northeast, where minus 30 to 40 degrees Celsius, the ice can be harder than a stone;Later, Tesla officially recommended a magic oil-WD-40 to car owners, which is used to apply WD-40 to the pivot pins of the door handles in severe winter conditions to prevent freezing. WD-40 can be bought in hardware stores or ** stores, but you must pay attention to the type of goods when buying, and you must buy waterproof and moisture-proof functions.