When you judge which brand is still equipped with auxiliary driving better L2 level, was there any brand can do so-called L2.5-class driver assistance functions. Guangzhou Automobile new energy level L3 autopilot function has been on the line. Guangzhou Automobile New Energy’s flagship model Aion LX, in a recent upgrade is equipped with driver assistance function hardware models, upgrade the corresponding software functions can be implemented L3 level autopilot function. Then how this particular performance level L3 automatic driving function of it? Here let us together to experience something. Before
■ autopilot rating
formally sharing Aion LX of L3 level autopilot, we need to brush up automatically driving level division. Of course, familiar with the autopilot directly allocated with friends can skip this paragraph.
autopilot rating division currently has two main criteria, is a subsidiary of the US Department of Transportation NHSTA developed, the other by SAE International (hereinafter referred to as “SAE”), which is against international car engineers developed. In contrast, SAE standards to be more clear, we now have about the autopilot’s ratings are in accordance with SAE standards division.
In the SAE standard, automatic driving function is divided into six levels, namely “L0, L1, L2, L3, L4, L5”. Each level is based on satisfying the former function on autopilot function to further enhance the initiative. L0 level is completely automatic driving function of the vehicle, driving 100 percentage rely on the driver to complete. In the former, the level L1 on the basis of the vehicle equipped with active security configuration, such as adaptive cruise, forward collision warning, lane departure warning function.
It is in fact universal level L2 L1 level may be viewed as a combination of related functions. The results of the work with the L1 level is disposed on the active safety functions are implemented independently, each function and do not communication , the influence on driving are generally only serve as a warning.
confusing is that these warning function with major manufacturers to upgrade their appropriate form functional aspects of the realization of the initiative. Such as forward collision early warning monitoring only played in front of obstacles, prompting the driver’s braking effect. By the latter part of this feature is that many manufacturers to upgrade to active safety brake. In the case of discovery obstacles arise not only indicates to the driver brakes, the prompt can be done even while the system directly to the braking action. Depending on the set manufacturers, some models only support low-speed auxiliary brake to stop, while others can be done at full speed segment brake stop. And like Volvo models can also be the case in the face of “ghost probe”, not only do active braking, lane change avoidance initiative can do under the conditions permitted.
There are many similar examples, such as lane departure warning only once did the warning voice prompts, and now is able to assist lane departure when the vehicle lane departure occurs at the same time issued tone and direction of actively corrected. Although these features set to achieve more with more initiative, but with a similar function in the model is still in the evaluation division of the L1 stage.
On this basis, L2, interconnect level are all active safety function, and driving under certain circumstances, to the appropriate control vehicle. L2 functionality early stage on the basis of an adaptive cruise, lane departure may communicate auxiliary brake and active safety functions, in the work process, to maintain the vehicle at the center of the lane, and the traveling distance set in accordance with the vehicle speed, emergencies under parked vehicle can brake. Automatic parking may be implemented at low speeds, the driver process without doing any manual operation.
L2 late stage upgrade function, and may be implemented in the case of line conditions permitted according to the driver’s steering commands lamp. Able to do with road traffic jam to go with stop, without any outside influence, the road traffic jams almost no driver’s control of the vehicle driving. These similar functionality upgrade also many manufacturers advertise so-called L2.5-class driver assistance functions. But in fact not an aspect of this class rating from the division, on the other hand comparative upgrade level L1 corresponding function can be seen, while a so-called level L2.5 initiative upgrade function, the extra rating 0.5 in fact, more or advertising it.
Although the level L2 has been providedThe performance of a variety of initiatives under the car environment, but most of the weight of the driving of the driver’s body is still heavy. So to this level, in fact, from the realization of functions, it is only a “driver assistance” rather than do the “automatic pilot.”
by the automatic pilot to assist the driver, in fact, is the boundary at the L3 level rating. On the basis of the former on the L3 level functions needed to achieve more sensors, and more accurate as compared to class L2 positioning means, radar, cameras hardware blessing, L3 stage to be able to achieve the basic conditions includes automatic driving. In terms of software, but also to achieve high-precision map L3 level autopilot indispensable item.
and in the past we know different navigation maps, high-precision map to the driver not to see, but to look at the car. In the case of hardware conditions are met, automatically driving a vehicle not only collect real-time information on road outside world, even more importantly, with high-precision map data as a support to achieve stable autopilot.
In the high-precision area coverage maps, L3 stage autopilot may be implemented substantially independent dispose the driving state of the vehicle, driving the vehicle itself weight higher gradually from the driver’s control of the vehicle at this stage , into an auxiliary emergency situations disposer. After setting the vehicle on the navigation route, road navigation tips can automatically transform implemented in accordance with, and out of the main road, and a series of slow vehicles to avoid self-judgment made by the initiative function is activated.
In theory, now with L3 level autopilot function hardware is not difficult. Audi A8 cash at the time of initial listing on the vehicle has been equipped with L3 level autopilot hardware, but because of high-precision map data and other relevant laws and regulations and regional issues, has yet to update the software, it has not done L3 level autopilot function. And we test drive of Aion LX, can be said to be the country’s first in more than solve problems, and to achieve L3 level autopilot models in production cars.
As for the level L4 and L5 of stages, to achieve substantially the same in function, both can be done unmanned. A procedure starting from point B to point go entirely completed by the vehicle. The difference is that the manual driving wheel will remain L4 stage, the accelerator, brake, and other hardware Dangba toArtificial necessary to facilitate driving the vehicle.
and is completely abolished L5 level hardware, and even car seat layout current vehicle state are completely different, not set up a dedicated main driver seat. After entering the passenger destination, all by the other vehicle by the control system itself.
■ Aion LX achieve L3 level conditions
know the specific ratings divided autopilot, I think you must know that this test drive the expectations of Aion LX where is the point. Set from the vehicle itself, the support level L3 autopilot function Aion LX, and do not support this feature models in the power system and other software configuration settings and there is no difference. The difference is that the user in the car, buy the appropriate configuration, it will install the appropriate hardware configuration of the vehicle factory, the latter can be achieved through open software upgrade capabilities.
Aion LX implement key elements of L3 level autopilot is to join the high-precision map, which is equivalent to giving the vehicle with a “super-intelligent decision-making capacity of the brain.” On location, this high-precision map can reality accurately locate centimeter level, to ensure the safety of the vehicle position in the lane of travel.
Meanwhile, from the plane to the three-dimensional, high-precision map is accurate to each lane and the viaduct, roads before the main road curvature, slope, heading, roll, to ensure that the vehicle even if the intake of Chongqing as “8D perspective city ”which is also stable enough to be able to use the L3 level autopilot function.
In addition, high-precision map can also be on the road early to predict, can predict in advance in front of one kilometer of road traffic, to achieve the Prophet, the Illuminati, first, to protect the independent traffic safety.
Hardware, Aion LX with the latest generation of millimeter wave radar, detection range 210 m, exceeding the previous generation of 50 meters. Also in the viewing angle of 60 degrees to achieve a wider azimuth 15 degrees beyond the previous generation. The latest generation of smart cameras, effective integration of 2D,3D imaging, and imaging with greater accuracy and safety. It can be said highly synchronized between hardware and software, it makes Aion LX achieve the level L3 autopilot function.
■ automatic level L3 actual driving experience
Open the system process is not difficult, Aion LX related controls are all provided on the multifunction steering wheel buttons this compared to lever-style operation to be more direct. Also note that, L3 level autopilot function must be able to be used in car navigation open state.
First cruise control switch is turned on, and then press the SET key set speed. At this point the vehicle has entered the adaptive cruise state, the vehicle will be set according to the driver’s speed and following distance, an adaptive cruise function. On this basis, the autopilot function keys by pressing the left side of the steering wheel, the vehicle will enter the driving assistance function L2 level state, this time on the basis of an adaptive cruise vehicle lane centering holder can be achieved, in the traffic jam within no more than 15 seconds long parking, autonomous control of the vehicle with go with the stop.
After the operation to this point, the vehicle based on the navigation information, automatic matching with the link high precision in the map data, with high precision at a traveling road map data, the vehicle will be automatically entered into L3 stage autopilot. The vehicle driver can find out whether the L3 level in accordance with the autopilot atmosphere green lamp on both sides of the instrument. After
into the L3 stage autopilot, in theory, the driver can get rid of a steering wheel, not like the L2 stage as the auxiliary driving function The journey takes hands on the wheel. And the system requires the driver when the hands on the wheel, the driver only needs to touch the steering wheel to the normal grip, rotation or not deliberately applied grip. This is set in the most equipped L2 level driver assistance functions compared to the more humane.
in the actual sensory experience, Aion LX L3 stage after entering the autopilot, reliability performance is very good, the driving state of the vehicle more stable. Identifying the preceding vehicle speed state is very fast, can import other preceding vehicle deceleration and the vehicle deceleration lane at a first time response. Unless the front brakes suddenly and so is the case, otherwise the deceleration of the vehicle is still very linear, in-car ride experience like an old driver in the car.
In the case where conditions warrant, suggesting lantern corresponding to the left and right of the vehicle appears beside an arrow, indicates to the driver and vehicle can line. At this time, if there is a driver and demand line, corresponding to the opening direction of the turn signal, the vehicle can be realized and autonomous line. Response speed and process stability are good.
Further, when the driver brakes or the rotational direction, the vehicle will be fully retracted into the manual driving state. When the driver wants to revert back to level L3 autopilot, by resetting the speed and click the button to the autopilot. Whether the vehicle will have a high precision in accordance with road map data, it is determined whether to automatically return to level L3 autopilot.
it is slightly less than Aion LX too sensitive to fatigue monitoring system is equipped. This surveillance camera system is arranged in front of the instrument, he can monitor the position of the pupil of the driver, the driver at this time so as to determine whether the presence or distracted driver fatigue phenomenon. When the driver’s line of sight on the instrument pupil range for too long, the system will prompt the driver to attend traffic safety through tone, when the line of sight when looking straight ahead deviation to another location, the system will also prompt the driver to improve driver’s attention. The system is due to the regional monitoring of narrow, even the eyes inadvertently deviation will be prompted, trigger mechanism suggested is too sensitive, making the user experience relative to the average.
Further, Aion LX cruise function, hands on the wheel tips, and tips, and tips line so related functions set position of the upper left corner of the instrument. This observation makes the driving process information is not intuitive. And TipsHands on the wheel of the warning lamp display is not obvious, suggesting that the process does not beep, the driver can easily be ignored. Support and line conditions arrow also too small and not easy to see while driving.
of course not on these sensory experience software problems, so for Aion LX models have OTA upgrade, entirely possible based on user feedback, the corresponding problems in the late Adjustment.
■ high accuracy maps limited opening
It may be implemented Aion LX L3 stage automatic driving function is also limited area and of the high-precision map open area. Beijing, for example, this feature is currently only in the area of Fifth Ring Road, the main road outside the city as well as fast and high-speed rings, regional and general urban road Wuhuanyinei can not support this feature.
Similarly, the current high-precision map of the area open to the main highways and urban expressways mainly urban routine road has not yet opened, and some important patches for security reasons The same is not opened. This is actually not difficult to understand, like the use of unmanned aerial vehicles like the popular photography enthusiasts, for security reasons as in some places of interest, all nearby airports, train stations, military management are all no-fly zone of. The autopilot high-precision map open area, on the one hand according to the development of vehicle technology may be, on the other hand according to the necessity of open area may be.
Aion LX now has an open, high-precision map area reached 28 cities, a total of 160,681 road data, the total mileage of 46,258 km.
■ AR scene mapping application
In addition to the car to see which high-precision map, Aion LX will be the next upgrade, in order to bring AR Virtual Map function now Aion V models already have this feature.
From the experience of Aion V’s point of view, this AR Live Maps betterThe display navigation information, visual display road information, enhance the user experience of navigation.
and the next upgrade them, level L3 optional autopilot hardware Aion V, will also be simultaneously open software feature that lets users synchronize Aion V in his car L3-level experience on autopilot function.
reviews the state ■
A few years ago the concept of Tesla with the autopilot into the production models which, for various reasons, we have seen a lot of unpleasant things happen. In order to avoid unnecessary accidents due to the autopilot function resulting from major manufacturers at the same time rational propaganda similar functions, hardware and software to perform the corresponding functions are also escalating. Aion LX can be said to be in the forefront of similar upgrades, but also the earliest high-precision map will be applied to the production model. In fact, each technology really mature in the past, we must go through a lengthy process of growth. At the same time we need to be cautious to use similar functions during this period, but also have a higher degree of tolerance of the growth process similar functions, after all, when they finally reach the standard trusted, or for the benefit of those of us users.