However, this reality is not only skinny, but even a little shabby, from the plump ideal of unmanned driving in many big mouths to the production cars with intelligent driving assistance levels such as L2 and L3 in reality. You drive a so-called car marked "L2" and think to yourself, "Wow! Autopilot? How to start? " After driving on the road, I can only hold the steering wheel foolishly and dare not let go. Your car foolishly followed the track marked on the ground and dared not cross the line.
Recently, the sun outside the window seems to have climbed from 5 am to 7 am, and it feels quite dawn. In the middle of last month, Wei Lai successively pushed NOP(Navigate? Open? NIO of priott)? OS？ Version 2.7.0. At the end of the month, a group of Tucki P7 car owners also participated in P7' s brand-new engineering version XPliot? 3.0? With the experience of NGP, these two new brands have made their own changes.
Previously, the electric probe has experienced NGP, and interested friends can browse the headlines of 65438+1October 28th. Today we will take a look at the performance of Weilai NOP.
■ NOP is closely integrated with high-precision maps.
What test cars are we driving today? Weilai ES8, EC6, old cars and new cars are all equipped with new NOP. Before we set out, we set a navigation route, from Yizhuang Weilai to Wuhuan and Jingha Expressway. In the navigation information of the central control panel, we observed some small details.
NOP has not reached the point where it can be used anytime and anywhere, and it still needs to be attached to high-precision maps. After setting the navigation information, we can see the blue logo on the map in the central control panel and know which sections can use NOP in advance.
When NOP needs to be temporarily offline, the corresponding red logo will also be displayed in the map. But we can ignore these blue and red signs and just turn on NIO normally? Priot will do. When driving in areas that do not support NOP, the vehicle also has intelligent driving assistance functions such as ACC adaptive cruise (above 8 km/h) and lane departure assistance.
■ Intelligent driving experience close to manual driving.
Open NIO after entering the expressway included in the high-precision map? Pliot, the instrument screen projects different information. At this point, there is a highlighted lead in front of the virtual vehicle in the instrument screen, and NOP can be started at this time.
What should we do first when we enter the expressway? Besides paying attention to safety, we need to accelerate to the road speed limit first, right? Because of the combination of NOP and high-precision map, after our car enters the expressway, the system will directly set the speed as the maximum speed limit of the road.
After entering Jingha Expressway, the speed limit information in the instrument screen is directly updated to 1 10 km/h, and the speed is gradually increased to the maximum speed allowed by laws and regulations with very moderate strength.
The instrument screen of this Weilai ES8 can accurately display the virtual information of surrounding vehicles and distinguish between large trucks and small buses. It seems that the accuracy of virtual instrument information is not for our constant attention, but for telling the driver that the system always knows what it is. When the big truck on the left enters the human eye's field of vision, we can observe the instrument screen, and we can feel that the big truck in the virtual information is consistent with what the human eye observes, and there will be no flicker.
During the test drive, we found a very interesting thing. When the driver gently puts his foot on the brake pedal, with the acceleration and braking of the vehicle, the depth of the brake pedal will change in real time, just like someone is stepping on the brake. In fact, this setting is unnecessary, and we don't know why. In short, this setting makes the intelligent driver assistance system more humanized.
When the current speed is too slow, the vehicle either decelerates ahead of time with a very linear force or waits for the opportunity to change lanes autonomously. When the NOP system finds the opportunity to change lanes, it turns on the turn signal first and then changes lanes with an extremely conservative strategy, just like an old law-abiding driver.
According to the visual inspection, when there is a car behind Weilai ES8150m, NOP will choose to wait. However, when the front vehicle is obviously lower than the speed limit and the distance between the rear vehicle and the vehicle is not too close, the ES8 will cleanly complete the overtaking action, the softness of lane change is comparable to that of the old driver, and the driving style is stable and skilled. After the vehicle overtakes, if the road conditions are ideal, it completes a magical operation of changing lanes independently.
The car you drive changes lanes by yourself. What should you do if you are afraid? If you don't want to believe NOP, you can adjust the automatic lane change to need confirmation in the central control panel. At this point, the system will still automatically identify the lane change opportunity, and the decision will be returned to the driver. The driver can toggle the turn signal without operating the steering wheel, and the vehicle will still wait for the lane change opportunity with a very conservative strategy.
When you enter or arrive at the toll station 500 meters away, the system will give a prompt that the system is about to quit. Exit methods include voice prompt and steering wheel vibration.
■ Disadvantages, is it insufficient?
During driving, we observed that a Weilai EC6 car in front of the right kept turning on the left turn signal and refused to merge. Only then did I know that I had blocked the way of merger. As a result, our ES8 slowed down, but EC6 refused to connect. After careful observation, the former EC6 recognized the solid line on the left, so it refused to merge. Later, I saw that EC6 merged when it changed from a solid line to a dotted line on the road.
NOP is not perfect, and the system will only choose non-parallel lines when the current road surface is solid (even if there are no disturbing vehicles around), but by observing the performance of each car in the team, I found that ES8 and EC6 will merge before reaching the solid line, and may run over the solid line in the process.
How to improve the small shortcomings of rolling solid line, by visual scheme or high-precision map? Both may be difficult to accomplish. It can only be said that the driver is still the "supreme ruler" of the vehicle, and the driver's attention still needs to be highly focused on driving.
When entering the ramp, the vehicle will swing slightly, the steering will be erratic, and it will be relatively calm when leaving the ramp. With the experience of NOP entering the ramp, I believe Weilai has the ability of continuous optimization.
NIO？ Pliot's reminder and alarm frequency is much more frequent than Tesla and Xpeng Motors, especially when you turn on the voice to wake up, the nosy NOMI will annoy you to death. However, turn off the voice reminder! It can also be set as a visual reminder of instrument information or a reminder of steering wheel vibration.
However, regardless of the form of reminders, reminders always exist.
Solid line problem, ramp problem, reminder problem, these can be temporarily considered NIO? Some minor problems faced by Pliot and high-order NOP. But from another angle, we can still use manual driving to replace the parts that Weilai intelligent driving assistance system is not good at solving, and NOP may be used on the highway where drivers are most prone to fatigue, during long-distance driving.
If you are far away from the city and drive hundreds of kilometers to other places, the existing NOP can be of great use. Weilai owners don't have to drive ACC adaptive cruise foolishly, but they have to turn off the lights manually when there is a local train ahead (this is already very powerful and easy to cut). Isn't it cool that your Weilai will automatically change lanes and overtake you?
■ National review
Autonomous lane change is undoubtedly a milestone from manual driving to unmanned driving. Rational use of this function is naturally full of surprises, but at this stage we can't expect independent lane change to start at any time.
For NOP navigation assistance, we may expect it to do more, and we are a little dissatisfied with its conservative strategy. But you only need to experience it for 30 minutes, and you will fully believe in the logic of NOP's car-following, braking and autonomous lane change. At least when the car turns on its own, you won't worry that it will be reckless. At this stage, only such a conservative strategy can ensure that NOP can achieve great success at least under certain working conditions, at least it must win your trust first. In the future, Weilai will give us more surprises.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.