Four cars showed off their skills at the high-speed NOA. Who is the biggest dark horse?

Our "Super Unboxing" just conducted a comprehensive review of high-speed navigation assisted driving this week. The four contestants were: Wenjie M7 Max, Xiaomi SU7 Max, Ideal L7 Pro, and Lynk & Co 08EM-P.

Huawei, Xiaomi, new forces and old brands in the car manufacturing and new energy market have all included products from the four major camps this time, and it is undoubtedly a top lineup.

Through a comprehensive review of highway NOA, we can not only understand the cutting-edge progress of the current mainstream car companies in the highway NOA function, but also provide a powerful reference for everyone when buying a car. What should a highway NOA function worth paying for be like?

The effective highway mileage of this test route is 575km, including intercity highways and elevated roads within the city. At the same time, we also counted some objective data such as lane changes, takeovers, downgrades, and ramps.

Based on these data, we extracted several representative indicators: NOA activation mileage percentage, effective lane change percentage, average mileage for every two successful effective lane changes, ramp pass rate, and average mileage between every two dangerous takeovers.

From the overall test point of view, the four cars, namely, Wenjie M7 Max, Xiaomi SU7 Max, Ideal L7 Pro, and Lynk & Co 08EM-P, have their own styles in the performance of high-speed NOA function. In summary,

Wenjie M7 Max: Bold and unrestrained, with a strong wolfish character

Xiaomi SU7 Max: a newborn calf with a split personality

Ideal L7 Pro: Slow and careful work, i-person positioning

Lynk & Co 08EM-P: Stable and reliable, excellent experience

The M7 Max is equipped with Huawei's ADS 2.0 advanced intelligent driving assistance system, which integrates the data of LiDAR, millimeter-wave radar and camera to achieve high-speed NOA without relying on high-precision maps.

During the test, I truly appreciated the strength of Huawei NCA's nationwide road coverage.

First of all, in terms of the mileage percentage, since the high-speed navigation of the QNEX has been switched to no map, there is no such thing as downgrade. Even if you temporarily change lanes to the opposite lane, the function will not be degraded, and there is no downgrade throughout the entire test process.

“NCA without map, can be driven all over the country” is true, but the fact that there is no downgrade throughout the whole process does not mean that the driver can “let go” throughout the whole process. Some complex construction scenes still test the driver’s psychological quality.

There is no downgrade throughout the process, but it does not mean that the entire experience will be online.

In terms of autonomous lane changing, the style of the Wenjie M7 Max is indeed a bit unrestrained. It changed lanes a total of 215 times throughout the whole process, which made it the strongest lane changing intention among the four cars. However, upon closer inspection, only 193 lane changes were successful, and the effective lane change ratio accounted for 96.74%, which was the lowest lane change success rate among the four cars.

In addition, the M7 Max also feels bold, which sometimes gives the following vehicles a sense of oppression. We internally jokingly call it: Wolf-like NOA.

In fact, frequent lane changes also reflect the strong confidence of this intelligent driving system. It doesn’t matter even if it fails. This may be Huawei’s style.

The best performance of the M7 Max is the ramp pass rate, with a ramp pass rate of 100%. Even in construction scenes + close cut-ins by large trucks, it can still withstand it, of course, the driver must also be able to hold on psychologically.

In general, the high-speed NOA capability of the Wenjie M7 Max is indeed very strong, but the prerequisite is that the driver must be mentally prepared and be able to hold on.

Xiaomi SU7 Max is the result of Xiaomi's three years of car manufacturing. There are many hot topics surrounding the entire car from hardware to software. It is natural that it will be indispensable in this high-speed NOA review.

Xiaomi SU7 Max is equipped with the Xiaomi Pilot intelligent driving system, which is powered by two NVIDIA Orin X intelligent driving chips with a computing power of 502TOPS. It can provide city navigation assistance, highway navigation assistance, valet parking, smart parking assistance, remote parking assistance, etc.

How does high-speed NOA actually perform?

To be honest: sometimes it is quite aggressive, and sometimes it is quite timid. Specifically, it is downgraded a lot, changes lanes very violently, and is easy to lose control on ramps.

For example, in terms of ramp performance, the pass rate of Xiaomi SU7 Max is relatively low. Sometimes it will speed without changing lanes before the ramp entrance, and sometimes it will be downgraded at the merging/exiting of the ramp, leaving the most difficult working conditions to the driver.

Secondly, among the four cars, Xiaomi SU7 Max was the one that was downgraded the most. The main reasons for the downgrade were construction, map breakpoints, or inaccessible ramps. In the end, Xiaomi SU7 Max was downgraded by 57.92 km in the test of more than 500 kilometers, and the NOA activation rate was 89.93%.

Sometimes even when the road conditions are very good, there will be downgrades. This is either because there are breakpoints in the high-precision map or the high-precision positioning signal is unstable. However, as a newcomer, Xiaomi SU7 Max challenges the difficult test of high-speed NOA right from the start. Its performance is understandable for the time being. We look forward to subsequent optimization and upgrades!

Both the Wenjie M7 Max and Xiaomi SU7 Max are equipped with lidar. The Ideal L7 Pro we got is a version without lidar, equipped with the Ideal AD Pro system and the Journey 5 intelligent driving chip with a computing power of 128TOPS. It can also realize intelligent driving functions such as high-speed navigation assistance, urban LCC, and smart parking.

Judging from the actual performance, the latest 5.2.0 version of Ideal L7 Pro has a bit of i-person feel.

It used to be a downgrade fiend and a lane-changing E person, but this time it did not downgrade very often, only downgrading 8 times in the total test mileage of 575km. In addition, it was the car with the lowest number of lane changes among the four cars.

After the new version iteration, it is obvious that Ideal L7 Pro is more cautious in changing lanes, and is more persistent in the left fast lane. It will not easily overtake and change lanes to the right. This time, there were 126 successful lane changes and only 3 invalid lane changes. The effective lane change accounted for 97.79%, and the overall performance was also good.

In terms of ramp pass rate, Ideal L7 Pro failed several times mainly due to construction conditions, which is basically the same as Lynk & Co 08EM-P. Due to construction and road changes, the system did not avoid risks in advance and the driver needed to take over actively. The other scenarios were also basically smooth.

The performance of Ideal L7 Pro and Lynk & Co 08EM-P is very close. In the hardware system of intelligent driving, these are the only two models that do not use laser radar.

The Lynk 08EM-P intelligent driving system is the Lynk Co-Pilot Navi intelligent navigation assistance system. It is based on the Ecarx Skydome Pro integrated intelligent driving computing platform and is equipped with two Black Sesame intelligent Huashan A1000 chips with a computing power of 116 TOPS. Combined with high-computing power chips and high-precision maps, Lynk & Co's NOA high-end intelligent driving navigation assistance system can cover the working speed range of 0-150km/h, covering 100+ daily usage scenarios on national highways/elevated roads.

Judging from the test data such as NOA activated mileage percentage, effective lane change percentage, average mileage for every two successful effective lane changes, ramp pass rate, as well as the actual driver experience, the performance of Lynk & Co 08EM-P is quite surprising.

First of all, the number of downgrades. Lynk & Co 08EM-P was downgraded only 7 times throughout the whole process, which is the least number of downgrades except for the M7 Max which was not downgraded throughout the whole process because of the lack of pictures.

Moreover, every downgrade during the Lynk & Co 08EM-P test was due to construction, and it would not be downgraded for no reason. It is also immune to tunnel damage and can remain stable online in a 3km tunnel, indicating that its calculation ability is relatively strong after the positioning signal is lost.

In terms of the number of lane changes during the whole process, the number of lane changes of Lynk & Co 08EM-P was second only to that of the M7 Max. Although it seems to have changed lanes a lot, it suppressed invalid lane changes very well, with 185 successful and effective lane changes, accounting for 98.48%, the highest among the four cars.

The number of lane changes reflects the difference in intelligent driving strategies, but a larger proportion of effective lane changes can give the driver more confidence. In addition, the lane changing experience of Lynk & Co 08 EM-P is also very friendly to novice users. It is not aggressive and the movements are very gentle, allowing people who use the function for the first time to quickly build a sense of trust.

In terms of ramp pass rate, Lynk & Co 08EM-P and Ideal L7 Pro have similar scores, but Lynk & Co 08EM-P still beats Ideal L7 Pro by one ramp.