The L3 Autopilot of Changan Automobile, the representative of China traditional brand, made its debut.

It is undeniable that autonomous driving technology has become the latest development direction of the entire automobile industry. Today, the scientific research achievements and engineering progress of autonomous driving technology accumulated in the past will become a reality. Self-driving cars are about to enter? 10-20? In the era of mixed mode, with the deep integration of self-driving cars and artificial intelligence, can self-driving cars be highly intelligent and truly realized? L4+？ The level of autonomous driving technology. While enjoying scientific and technological achievements, we also need to realize that autonomous driving technology can bring infinite expectations, but it will also bring great impact to social life and also face great challenges.

4? 2008 is just a moment in the history of automobile civilization, but Changan Automobile has passed? 4? In the middle of the year, a series of breakthroughs were made in the development of autonomous driving.

20 16? Year? 3? Completed in June? 2000? Km unmanned test;

20 18? Year? 1 1? In May, it successfully challenged the Guinness World Record of "the largest self-driving car parade";

2020? Year? 3? Month? 10? In fact, Changan Automobile announced that China was the first? L3？ Level-8 autopilot mass production experience.

Today? Promotion of China version of automatic driving classification standard

Also today (March 9), the Ministry of Industry and Information Technology posted a draft of the recommended national standard of Automatic Classification of Automobile Driving in official website, which is planned to be published in? 202 1? Year? 1? Month? 1? It will be implemented on the 20th.

Before the approval and release of the standard, in order to further listen to the opinions of all sectors of society, the Ministry of Industry and Information Technology will announce the draft of the standard for approval and the preparation instructions to the public. What is the deadline? 2020? Year? 4? Month? 9? Day. It is reported that the automatic classification of automobile driving (draft for review) is from? 20 17? Did the pre-research started in 2008 last nearly? 3? A few years. In the process of standard formulation, more than ten domestic and foreign enterprises, such as BMW, Ford, Volkswagen, Changan, Guangzhou Automobile, Geely and Dongfeng, assisted in drafting and formulating standards. [Not simple]

So what is autonomous driving? This is an unavoidable problem. As the name implies, autonomous driving refers to the technology that relies on computers and sensors to replace humans for some driving operations.

The main body carrying this technology is self-driving cars (automation? Vehicles; Smart? Vehicles; Autonomous? Vehicles; Autopilot? Cars; ), also known as smart car, or wheeled mobile robot, is a kind of smart car that can realize automatic driving through computer.

Previously, according to global standards (by the United States? SAE？ ), we rate autonomous driving in different degrees, which we often see in advertising leaflets? L2, L3. With the publication of China's "Automatic Classification of Automobile Driving" recommended national standard for approval, it can be said that the China standard has ushered in the fiery field of automatic driving.

Referring to two tables, what is the level of driving automation? 5? Hierarchy, the two are roughly the same, which is the most talked about now? L3？ We all agree that it is a kind of conditional automatic driving, that is, under certain conditions, the vehicle can independently accelerate and decelerate vertically, and keep or change lanes in the transverse lane, but the driver needs to keep such a state of taking over at all times. Drivers can let go of their hands, feet and eyes under certain conditions, but they still need to pay attention to take over the vehicle at any time.

Changan? UNI-T？ The hardware level of autonomous driving is leading in the industry.

Changan automobile? L3？ First-class autopilot system, coverage of perception range? 3? Heavy? 360? Perception of the environment outside the car, comprehensive? 3? In which front end are the three sensing systems with different physical characteristics realized? 5? Re-sensing redundancy, the maximum detection distance is greater than? 200 meters, measuring accuracy as high as? 10cm. Adopt the industry-leading 5? A millimeter wave radar, 6? A camera, 12? As the main sensor, ultrasonic radar can detect vehicles, pedestrians, cyclists and other targets and obstacles in the driving environment. At the same time, it can sense the driver's vision, fatigue and other States, and provide reliable basis for intelligent decision-making of automatic driving system.

And then what? UNI-T？ It can also effectively identify lane lines, guardrails, traffic signs and other information, combined with high-precision maps and? Adas? The road information of the map can be obtained in real time at the highest? 8? Road information within a kilometer can realize high-precision positioning and accurate path planning at the lane level, which can effectively ensure the accuracy of autonomous driving tasks.

Get to know Chang 'an quickly? L3？ Class automatic driving system

1, Changan Automobile completed it independently? L3？ The development of the core technology of level-8 autopilot system has all independent intellectual property rights for all system algorithms.

2. Complete tens of thousands of scene matching tests, 5000? Ten thousand kilometers test mileage.

3. In certain electronic fences (including typical expressway and urban expressways), you can take off your feet, hands and eyes for a long time in traffic jams until the system reminds you to take over. What is the maximum speed supported? 40km/h (The system dynamically adjusts the maximum speed of automatic driving in traffic jams according to the safety risks of the surrounding environment. What can it support? 40km/h speed), if the user still does not take over after reminding the user to take over, implement the risk mitigation strategy and slow down the parking.

4. Liberate your eyes: In the case of traffic jam, keep a safe distance from the vehicle in front and drive automatically. After liberating the driver's eyes, the driver can play with his mobile phone or watch the car, and the limited entertainment function in manual driving mode allows the driver to use it.

5. Follow the start and stop: In the process of automatic driving in the case of congestion, the system will realize that the vehicle will slow down and stop and restart after following the preceding vehicle. Parking 3? In a few minutes, you can start the front car automatically.

6. Safe handling of overtaking of the preceding vehicle: In the process of automatic driving under the condition of congestion, when the adjacent vehicle overtakes the preceding vehicle, the system automatically adjusts the speed to keep a safe distance from the overtaking vehicle.

7. In a specific electronic fence (including typical expressway and urban expressways), the speed is higher than? 40km/h？ When in use, the driver can trigger lane change (that is, after the driver toggles the turn signal, the vehicle automatically changes lanes). If the user still refuses to take over after reminding him to take over, the system will implement the risk mitigation strategy and slow down.

8. Transition from congestion to non-congestion: the congestion in front of the vehicle is relieved, and the speed of the preceding vehicle is higher than? 40km/h？ After that, the system maintains the speed and steering control of the vehicle, reminding the driver to resume monitoring the road environment ahead, and after the driver's state monitoring system confirms that the driver's eyes have resumed monitoring, it keeps driving smoothly in this lane.

9. Safe turning: When approaching the curve, automatically adjust to the safe turning speed to maintain safe driving.

10, automatic speed limit: the system automatically recognizes the speed limit information and automatically sets the speed limit as the target cruise speed according to the relative relationship between the set cruise speed and the speed limit.

1 1. Driver triggers lane change: Is the speed of this vehicle higher than? 50km/h？ When the driver turns on the turn signal, the system monitors the feasibility of lane change, controls the vehicle to automatically change lanes to adjacent lanes according to the direction of turning on the light, and frees the driver's hands and feet during lane change, but it is necessary to keep monitoring the driving environment.

12, wisdom recommends changing lanes: is the speed of this car higher than? 50km/h？ When it is detected that the vehicle is following the preceding vehicle for a long time (its actual speed is less than the set speed), the system will actively remind the driver to change lanes to the available target lanes, and the driver will automatically change lanes after confirmation, freeing the driver's hands and feet in the process of changing lanes, but it is necessary to always pay attention to the driving environment.

13. Whether it is low speed or high speed, the system will dynamically identify the driver's state.

Briefly talk about three ways of mass production of vehicles with autonomous driving ability.

The new forces headed by Tesla put "autonomous driving" in the position of the core competitiveness of automobiles in the new era. In the pursuit of fully automatic driving, each family has adopted different methods. Mainly by the following three:

First, the comprehensive type

The vast majority of domestic OEMs and joint venture OEMs, including the new forces that build cars, are of this type. Tier？ 1? Provide a "menu", the OEM "orders" according to its own market demand, and then send the "children" to the past and bring them back when they grow up. This method can use the ability of mature suppliers to land quickly, but the result is similar.

B, part of the self-developed type

This difficulty can be broken through by using the mature perception ability of suppliers. Do some planning and integrated development by yourself. Its advantage is that it is more flexible than integrated development and can be done by yourself? OTA can also achieve some differentiated functions. Of course, R&D investment will be higher. 0? Arrive? 1? It will be more painful in the process. If we really want to make greater differentiation of autonomous driving ability and faster pace of mass production, this method will still have certain limitations.

C, completely independent research and development type

Not only perception, but also complete end-to-end autonomy, and even the computing platform participated in the design. Undoubtedly, this is the most painful and flattering route. Tesla is a typical representative, and only Tesla has realized this system capability in mass production. Xpeng Motors is a follow-up player.

Changan released this time? UNI-T？ L3？ Automatic assisted driving is a typical partially self-developed type. What is its journey to the horizon? 2? It can be said that the decision-making chip is also quite special in a group of cars playing autonomous driving, and it is the first car equipped with this chip in China. And it's important in the field of autonomous driving? Ota? Where is the ability? UNI-T？ We still have a question mark about the situation in the world, and we look forward to getting a real car for in-depth experience and testing as soon as possible.

At present, all car companies are scrambling to realize and pursue autonomous driving. On this track, we see more and more China companies. Joining the track in the early stage of autonomous driving growth, relying on the huge domestic market and massive user base, I believe we are close to realizing the real? L5？ 1 class unmanned driving time is gradually shortened.

Autonomous driving will bring the most significant change to the automobile industry for a long time. The automobile industry can have various behaviors and cooperation modes, which we have never encountered before. You are also welcome to discuss with us. There is no exact answer, only the desire to embrace the future. Reliable and easy-to-use automatic assisted driving technology is the next key development direction of Changan Automobile. It's always good to see a traditional automobile company struggling to climb the peak of China brand autonomous driving.

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