IT Home reports that BYD’s Ocean Network released a video showing automatic emergency steering tests of the second-generation Seal 07 at a Shenzhen test facility. IT Home says the reported avoidance tests succeeded at speeds from 90 km/h to 130 km/h.
The video does not tell me whether the same system, calibration or result applies to my BYD Han. My Han was bought new in China and driven in Portugal, while IT Home’s report is about one newer Seal 07 tested on a closed road in Shenzhen.
That is still useful information, just not in the way a promotional clip wants it to be useful. It shows what BYD chose to demonstrate on one model; it does not establish what an imported Han can do on a Portuguese road.
What did BYD’s Seal 07 AES test video actually show?
IT Home reports that BYD’s Ocean Network released a test video from the Shenzhen Bay Area Intelligent Connected Vehicle Test Site, where a second-generation Seal 07 completed avoidance manoeuvres using AES, or automatic emergency steering.
According to IT Home, the article describes four test items but names three of them: emergency avoidance when a vehicle ahead disappears at 130 km/h, a front-and-rear squeeze scenario at 90 km/h, and an emergency avoidance scenario involving a child dummy emerging from the roadside at 90 km/h.
IT Home writes that AES and AEB are complementary systems. In its description, AEB is intended to brake, while AES takes over steering where braking distance is insufficient and a neighbouring lane is safe for an avoidance manoeuvre.
That distinction matters. A car avoiding something by steering is not simply “braking better”; it is making a decision about direction as well.
How fast was the BYD AES test?
IT Home reports that the Seal 07 passed the disappearing-vehicle avoidance test at 130 km/h, while the front-and-rear squeeze and roadside-child-dummy scenarios were reported as successful at 90 km/h.
IT Home’s report gives the following comparison of the scenarios it names:
| Test scenario described by IT Home | Reported test speed | Reported outcome |
|---|---|---|
| Vehicle ahead disappears | 130 km/h | Avoidance completed |
| Front-and-rear squeeze | 90 km/h | Avoidance completed |
| Roadside child dummy | 90 km/h | Avoidance completed |
IT Home also describes the footage as showing the Seal 07 on a closed test road, with white vehicles used as obstacles or target vehicles and a dummy appearing from the roadside in the child scenario.
A closed test road is exactly where this kind of test belongs. But it also means the video is evidence of a controlled demonstration, not a promise about every road, every lane marking, every weather condition or every car carrying a BYD badge.
Does the Seal 07 AES test apply to a BYD Han?
No conclusion about my Han follows from IT Home’s report, because IT Home reports a test of the second-generation Seal 07 and does not say that the tested AES system or its result applies to a Han imported to Portugal.
That is the bit owners of China-market cars need to keep separate. A newer model may have newer hardware, different software, a different sensor set or simply a different test programme. IT Home’s article does not compare the Seal 07 with the Han, so I cannot turn its result into a claim about my own car.
The same applies to software features generally. My Han is a China-market car, and I have already had to treat feature availability as something that depends on the car, its market and its software rather than the logo on the bonnet. I wrote about that with CarPlay and Android Auto on a China-market BYD.
So yes, I would rather see a manufacturer demonstrate emergency steering than not demonstrate it.
But “the new Seal 07 did this in a test” and “my Han can do this” are two completely different sentences.
What does AES do when AEB cannot stop in time?
According to IT Home, AES is intended to steer around an obstacle when braking distance is insufficient, provided that an adjacent lane is safe for the manoeuvre. IT Home describes AEB as the braking side of the safety system and AES as the steering side.
That sounds straightforward until you remember what the system is being asked to judge: not only an obstacle ahead, but also whether there is somewhere safe to go beside it.
The useful question is therefore not whether a car has AES written on a specification sheet. The useful question is what exact model has it, under what conditions it can act, and whether those conditions match the road where you actually drive.
Is a BYD AES video proof that the system will work on public roads?
No. IT Home reports a successful demonstration on a closed test road in Shenzhen, but its article does not claim that the result guarantees performance on public roads or on other BYD models.
That is not a criticism of the test. A test video can show a defined scenario very clearly. It just cannot answer every ownership question that comes after it.
The video is a useful thing to watch if you are considering this particular Seal 07. For an owner of an older imported BYD Han, it is mostly a reminder to ask more precise questions before assuming newer assistance technology has travelled backwards into the car already in the driveway.
FAQ
What is AES on a BYD?
IT Home describes AES as automatic emergency steering: a system intended to take over steering for an avoidance manoeuvre when braking distance is insufficient and an adjacent lane is safe.
What is the difference between AES and AEB?
According to IT Home, AEB is responsible for braking, while AES is intended to steer around an obstacle when braking alone is not enough.
What speeds did the Seal 07 complete the AES tests at?
IT Home reports successful avoidance at 130 km/h in the disappearing-vehicle scenario and at 90 km/h in the front-and-rear squeeze and roadside-child-dummy scenarios.
Where did BYD conduct the AES test?
IT Home reports that BYD’s Ocean Network released footage from the Shenzhen Bay Area Intelligent Connected Vehicle Test Site. The article describes the car driving on a closed test road.
Does this test prove that a BYD Han has the same AES function?
No. IT Home’s report concerns the second-generation Seal 07 and does not say that the tested system, software or result applies to a Han.
Did IT Home say the video was a real-world road test?
No. IT Home describes a controlled test site and a closed test road; it does not describe the footage as a public-road test.
Source
This post comments on a Chinese-language article published by IT Home on 13 November 2026. IT Home reports that BYD’s Ocean Network released a Seal 07 AES test video, and says the testing took place at the Shenzhen Bay Area Intelligent Connected Vehicle Test Site. The article describes the location; it does not say where BYD made the announcement itself.
The translation from the Chinese is my own. Every statement here about the video, the test scenarios, the speeds, AES and AEB is IT Home’s account of BYD’s reported action, not my own independent finding.
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