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According to times finance and economics, the so-called OTA technology is a popular technology in the era of Internet of vehicles. FOTA (firmware OTA) and SOTA (software OTA) that some automobile enterprises publicize as product highlights belong to this technology branch. In OTA technology, the top-level level is currently supported for both software and hardware of the whole vehicle, and only software upgrade is relatively common and relatively backward.
Top level OTA technology can play a disruptive change for vehicles. The most typical example is Tesla.
In 2018, Tesla Model 3 was found to have poor braking performance in a test conducted by the U.S. consumer report. It took about 46 meters to brake a car at 60 mph (about 97 km / h).
Tesla then spent about a week recalibrating the vehicles brake system and pushing upgrades to the vehicle via OTA technology. The upgraded model 3 has been retested by consumer report and its 60mph-0 braking distance has been shortened by 5.8m, which makes the performance return to the medium level from a miserable situation.
In theory, vehicles supporting OTA technology will have a longer and more plastic life cycle. This technology is becoming popular, and it is not limited to intelligent pure electric vehicles. For example, Geelys fuel car Xingrui at Guangzhou auto show has optimized the idle speed strategy of vehicle heat engine and air conditioning cooling performance through FOTA. On November 26, a software calibration engineer of a first-line independent vehicle enterprise said in an interview with time finance.
Thanks to OTA technology, the new generation of vehicles will continue to upgrade in their life cycle like mobile phones, computers and other intelligent devices, including but not limited to acceleration, braking and even automatic driving, which can achieve one key optimization without the need for owners to spend a lot of effort. But while enjoying this convenience, OTA technology also has its disadvantages.
Photo source: official pictures of automobile enterprises
Take Tesla as an example, it has had the reverse operation of degrading the vehicle through Ota.
In the middle of 2019, Teslas models have occurred spontaneous combustion accidents in many places around the world. In response to this situation, Tesla has launched a new charging management system to all vehicles in the market through OTA, which limits the charging upper limit and charging power of the battery in normal mode. At the same time, a series of Tesla owners also reported that the safety redundancy of the vehicle battery has been improved, which shows that the endurance capacity under the same power after upgrading is reduced.
After the above OTA, Tesla has not had a large-scale vehicle spontaneous combustion accident. However, the practice of demotion to avoid spontaneous combustion caused great controversy at that time.
Since it can be upgraded remotely, it can also be downgraded remotely, so as to avoid the abuse of OTA technology by automobile enterprises. This is the original intention of the notice formulated by the General Administration of market supervision. The industry generally supports this new deal.
This is a proactive policy to ensure that future smart cars are effectively regulated through OTA upgrading, so that problems can be tracked continuously. This reflects that regulators are adapting quickly to market changes, and I think its a good policy. On November 26, Cui Dongshu, Secretary General of the all China Federation of passenger cars, told time finance. But at the same time, Cui Dongshu is also worried that the implementation of Ota new policies in the notice is more difficult. For example, when OTA upgrades are more frequent, some small failures may be difficult to effectively indicate, and program upgrades are actually difficult to evaluate and quantify. It is mainly necessary for enterprises to cooperate consciously. Source: time weekly editor: Chen Hequn_ NB12679
But at the same time, Cui Dongshu is also worried that the implementation of Ota new policies in the notice is more difficult. For example, when OTA upgrades are more frequent, some small failures may be difficult to effectively indicate, and program upgrades are actually difficult to evaluate and quantify. It is mainly necessary for enterprises to cooperate consciously.