The full name of OTA is "Over-The-Air", that is, over-the-air download technology, which was widely used in the mobile phone industry in the early days, ending the tedious operation of connecting a computer, downloading software, and then installing and updating mobile phone software. In recent years, with the continuous development of automotive networking technology, automotive OTA has also become a hot word in the industry. Remote upgrading of cars through OTA technology can not only continuously improve the terminal functions and services for vehicles, but also make car owners have a more convenient and intelligent car experience. It can also be used to quickly fix loopholes and help implement car recalls. It has gradually become an important means for enterprises to solve software and hardware system problems.

The industry recognized automobile OTA first appeared in 20 12. The ModesS launched by Tesla adopts OTA technology for the first time, and the update scope involves modules such as human-computer interaction, autonomous driving and power battery system. By then, Tesla can complete key card vulnerabilities through OTA, improve cruising range, increase top speed, improve ride comfort, and make the functional iteration of the car more flexible and convenient.

Later, Toyota, Ford, Volkswagen, BMW and other traditional car companies began to try OTA technology. During this period, domestic Weilai, Ideality, Tucki, SAIC, BYD, etc. Also introduced some models that can realize some functions or complete OTA.

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