"Oh, my God, there's another parallel driver. Put on the brakes!"

First experience? Weilai ES6 and Tesla Model? 3' s automatic assisted driving system is really sweaty in my hands and I don't trust the vehicle enough. I will step on the brake pedal early for fear of rubbing with other cars.

Safety is naturally the most … most … concerned issue for everyone. If it is not safe, everything will be in vain. So is the automatic assisted driving of Weilai and Tesla safe? Here we won't talk about the virtual concepts described by those manufacturers, such as how many radar probes and how much computing power. Let me give you a summary from the actual experience.

First of all, through our repeated experience for a day, in fact, the automatic assisted driving function is more of a process of continuous trust between people and cars. At first, people will not trust you. It's like driving a car driven by a stranger. After a period of running-in, you will understand the automatic driving thinking and mode of the system.

In fact, whether it's Weilai or Tesla, they can ensure safety, as long as you trust them enough.

Of course, I have to say that the road conditions in China are sometimes quite complicated. Therefore, this system is only applicable to expressway or urban expressways with no traffic lights and clear road signs and markings. If you pass through the entrance with heavy traffic, it is best not to drive next to the outside lane on the entrance side. To achieve the above, basically this system is safe enough and can give great help to drivers.

Scene 1: Follow the car on the traffic jam section

Compared with the traditional ACC adaptive cruise, the automatic assisted driving system on Weilai and Tesla can achieve adaptive cruise in the full speed range, that is to say, even in traffic jams, these two cars can follow the car.

Weilai ES6 and Tesla Model? 3% of the car-following distance can be adjusted. When the car-following distance is adjusted to the minimum, the car-following distance between the two cars and the preceding car is basically about one and a half parking spaces. What is this concept? That is to say, except for those "old fritters" who like to merge back and forth, the average driver will not take the initiative to merge when he sees this distance from the car, because they think that merging will have the risk of rubbing.

The automatic assisted driving of Weilai ES6 is soft when starting and stopping, which is comfortable for passengers. It is more like an old driver driving. But the disadvantage is that when the traffic jam stops for more than 5 seconds, then the front car starts, and you need to press the switch again to continue following the car.

Tesla Model? When following a car in a traffic jam, it will follow closely, which avoids the usual congestion, but this agile operation also has disadvantages, that is, the ride comfort is greatly reduced. It is a bit like a reckless driver. Sometimes it starts and brakes smoothly, and sometimes it is radical. Sometimes it suddenly brakes inadvertently, and people in the car will be shocked. And Tesla Model? Be very cautious. If the car in front rides the line, it will step on the brakes early. However, even if you stop for a long time, Model? 3 can also make a follow-up response after the front car starts. Just for safety, Model? The driver is required to hold the steering wheel at all times, otherwise he will quit the automatic assisted driving system.

Scene 2: High-speed closed road driving

Compared with the traditional ACC adaptive cruise, these two cars are more advanced in that they can realize automatic steering. They are based on the principle of steering through road markings and high-precision maps. To be sure, within the speed limit of 120km/h in China, both cars can pass smoothly in high-speed corners. Moreover, in addition to extremely bad weather (such as heavy rain) and ordinary rainy weather, they can also achieve automatic assisted driving. Of course, if the ground snow blocks the road markings, then don't try.

This operation basically makes daily urban expressway driving and high-speed long-distance driving very easy. So let's talk about the advantages and disadvantages of Weilai and Tesla.

One of the biggest attractions of Weilai ES6 is that it can automatically change lanes, which Tesla does not have. When there is a slow train in front of the road, and there is no car in the next lane, Weilai ES6 will automatically merge to achieve overtaking. The whole overtaking process is very smooth. Of course, as we said earlier, the system will merge under the condition of sufficient safety. If there are side-by-side vehicles, it will generally not merge. At the same time, in order to prevent the driver from being frightened, the system will prompt the driver before starting to merge.

This kind of automatic merging is suitable for sections with low traffic volume. If the traffic volume is large and the speed of the preceding vehicle is not very slow, the system will generally not make overtaking action. However, the automatic parallel function of Weilai ES6 will not be started on all roads, and usually it can only be started on inter-city expressways and peripheral expressways. For example, in Beijing, the system can only be started on roads outside the Fifth Ring Road, so there are not many opportunities for daily experience.

Tesla Model? 3' s automatic assisted driving can't completely change lanes automatically, and you need to manually turn on the turn signal to realize automatic lane change (Weilai ES6 also has the function of turning on the turn signal to change lanes). Compared with Wei, the degree of automation is slightly lower, but Tesla has no restrictions on the use of roads, and automatic assisted driving can be started on any road.

Model? 3' s automatic lane change is also suitable for sections with little traffic flow. If there are vehicles driving in the same direction next to them, if the driver turns on the turn signal, the system will wait for the right time to merge, and sometimes it will accelerate and decelerate appropriately to complete the merging action of vehicles, and the whole merging action will be smooth.

Scene 3: Drive off the ramp automatically according to the navigation.

Because Weilai ES6 uses high-precision maps, Weilai ES6 can complete automatic parallel turn-in in high-speed and high-speed conversion ramps after setting navigation. When there is still a certain distance from the exit ramp, Weilai ES6 will automatically merge into the outer lane. Before reaching the ramp, it will automatically slow down to the ramp speed limit standard, smoothly pass the ramp, and then automatically merge into the main road after reaching the new expressway through the ramp, which can be said to be very intelligent.

If the off-ramp is a toll station, or when entering a traffic light section, Weilai ES6 will prompt the driver to take over and will exit the automatic assisted driving state. However, in some ramp signs and markings are unclear or relatively new high-speed entrances and exits, Weilai ES6 also made mistakes in judgment and did not enter the ramp. This action, not 100% can be successful, and the driver needs to pay more attention.

Tesla Model? Although there is also the function of driving off the ramp automatically according to navigation, in fact, this function is basically in an unusable state. The main reason is, Model? Although you can get off the ramp occasionally successfully, it will not slow down on the ramp. If you drive off the ramp according to the maximum speed limit on the highway, it will be a very dangerous driving behavior. So, Model? This function of 3 is basically unavailable.

On the whole, although Tesla had an automatic assisted driving function earlier than Weilai, Weilai has a better experience than Tesla in terms of current functions, experience and automation, especially in localization. Weilai has obvious advantages. After all, the driving conditions in China are far more complicated than those abroad. The only advantage of Tesla's automatic assisted driving is that it can start this function in any road condition, which can increase the experience of more daily use scenarios.

It should be noted that at present, this function of both brands needs to be installed separately. The cost of the optional Tesla Autopilot automatic assisted driving fully automatic driving capability package is 64,000 yuan, and the optional Weilai NIO? The cost of Pilot full package is 39,000 yuan. Although Weilai and Tesla may update the function of automatic assisted driving in the future, such as increasing the automatic assisted driving experience at traffic lights. But when it comes down to it, it is obvious that Weilai's optional bag is worth spending money alone.

This article comes from the author of Chejia, car home, and does not represent car home's standpoint.