1. Home
  2. >
  3. Driving
  4. >
  5. Driving Guide
  6. >
  7. Is the NFC key...

[YesAuto Connected Travel] Let’s start with the conclusion. In the past, BYD’s in-vehicle systems seemed to me more like “semi-finished products”. The necessary car control functions are packed into the Android tablet. When I arrived at BYD Han, I finally saw a “complete” DiLink system. In this article, we will focus on NFC and briefly analyze BYD Han's in-vehicle system.

Will NFC keys be cooler?

At the level of in-vehicle systems, apart from the HiCar Huawei mobile phone mapping that has not yet been implemented, the most eye-catching point on Han's body is undoubtedly the NFC key. To clarify its meaning, we might as well take a look at the changes of “car keys” in the long history of automobiles.

This crank shows the original meaning of the car key- namely “authentication” and “start” . Many old-fashioned diesel tractors today still use such a crank handle.

In the era of smart cars, the start of the engine/motor is accompanied by authentication. Tesla even removed the start button. As long as your identity is authenticated, the vehicle will start on its own.

Why use NFC?

Let us first talk about the benefits of NFC. NFC is the abbreviation of Near Field Communication, which means near field wireless communication . It was initiated by NXP and jointly promoted by famous manufacturers such as Nokia and Sony. The biggest advantage of NFC is that it is safe enough, whether it is relative to other communication methods, or the previous generation of RFID.

In addition, because NFC integrates network technology, information exchange between devices can be realized through the Internet, based on this, there are many ideas that can be realized.

What's the use? how to use?

So back to BYD Han, which is also an NFC car key. Compared with Tesla, what are the advantages and disadvantages of BYD Han? First of all, we must make it clear that for both, NFC is a backup authentication method . Han's conventional car keys support keyless entry; Model 3 supports keyless entry based on mobile phone Bluetooth, or you can buy a conventional car key for 1,200 yuan.

BYD Han only needs a mobile phone and can bring one less card. In a country where few people carry wallets, don't underestimate a card. Sometimes it just doesn't go anywhere.

So what is the problem with mobile phone NFC? Just want to use NFC permissions and maintain the state of system resource occupation, BYD has to talk to mobile phone manufacturers one by one. At present, mainstream models of mainstream Chinese brands such as Huawei, Xiaomi, OPPO, vivo, realme, and OnePlus have all supported BYD’s NFC car keys, while the iPhone does not yet .

With the development of network connection, in the future, we also plan to cooperate with universities to conduct safety tests for different car key forms, and interpret the safety of different brands and forms of car keys from a scientific method and perspective, so stay tuned.

What else is worth noting on BYD Han?

You will obviously find that on BYD Han (DiLink 3.0), the entire UI has been redesigned. As we said at the beginning, the DiLink in the past seems to have packed the necessary car control functions into an Android tablet.

New functions such as one-click antivirus function based on pasteurization theory, remote OTA, express delivery to car and other functions have been added. We have an article on these new functions in a more detailed introduction. Interested students can move to “BYD DiLink 3.0 Brief Analysis.

But unfortunately, although there are already icons on the settings page of Huawei phones, they have not yet been implemented. I consulted my colleagues at Huawei about this, and the information I got is that it will be officially launched in September. You can look forward to it .


There are always people who have questions: these, I don’t need them, so what do I do? Yes, has the advancement of technology made the product better? Has it made life better? I don’t know that sometimes, without involving great changes, some small innovations are nothing more than to help you touch the screen one less time, bring one less card or save some time. If you don’t need it, it doesn’t make any sense. However, the development of mankind is to accumulate steps, even thousands of miles. Keeping innovation and accepting new things are also one of the foundations for us to stand among the nations of the world. (Photo/Zheng Xu from the home of the car)