Nissan is turning on intelligent lidar-based assistive technology to enable vehicles to have emergency avoidance during autonomous driving. It can be said that vehicles without emergency avoidance function are still circling in the framework of L2 level, Nissan released five emergency scenarios, in its video, two scenarios were achieved, but three emergencies still need to be overcome with partners.
Wen 丨 Xiaoyu came
Edited | Jason
Unlike Toyota's pure-vision approach of embracing Tesla, Nissan Motor Company today (April 25) announced the latest developments in its new lidar-based driver assistance technology.
After turning on intelligent driving technology on semi-closed roads and highways, it has the ability to avoid collision risks in response to breakthrough conditions.
This technology can use a highly accurate, real-time vehicle surrounding environment information perception system to effectively reduce accidents and improve the level of automatic driving.
Nissan's "ground truth perception" technology combines information perceived by next-generation high-performance lidar (LIDAR), radar, and cameras to detect the shape and distance of targets in real time and accurately, as well as the spatial structure of the area around the vehicle.
Using this information, the vehicle can analyze the current situation in an instant to make a judgment and automatically perform collision avoidance operations.
At the same time, the technology can also detect deceleration traffic and road obstacles in the distance, and automatically change lanes.
Importantly, in the absence of detailed map information, the technology can still provide drivers with strong driver assistance support.
Mr. Takao Asami, Senior Vice President of Global R&D at Nissan Motor Company, said, "Nissan motor is the first company in the world to launch a number of advanced driver assistance technologies. Giving drivers confidence in the safety performance of vehicles is key to the future development of autonomous driving technology. Nissan's ground truth perception technology will play a crucial role in improving driver confidence, reducing traffic accidents, and driving the development of autonomous driving in the future. ”
The new driver assistance technology uses a highly accurate, real-time information perception system for the vehicle's surrounding environment to effectively reduce accidents.
The system uses products from the famous lidar company Luminar, and the two sides share relevant experiences to integrate a new generation of lidar (LIDAR) into Nissan's driver assistance system.
Another nissan partner is Applied Intuition, a company that develops simulation technology for high-precision verification technology in a digital environment.
According to nissan Ambition 2030, Nissan is using next-generation lidar (LIDAR) to develop vehicle control technology to reduce the occurrence of traffic accidents.
Nissan said that in the upcoming era of autonomous driving, assisted driving technology that can avoid complex traffic accidents will be indispensable.
On its development timeline, Nissan plans to complete the development of ground truth perception technology in the mid-2020s. This technology will be implemented first on some new models and is planned to be applied to all new models by fiscal year 2030.
Let's take a look at Nissan's ability to live sense the current progress and intentions to achieve this set of roads.
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Scenario 1: Continuous emergency avoidance
Let's first look at the first scene, in the straight process, suddenly there is a vehicle in front of the left side of the reverse, after the vehicle is accurately identified, the emergency to the right lane to avoid, but the right side of the front suddenly has pedestrians entering, Nissan vehicle in a very short period of time in no longer have to avoid the time and space to the left, emergency formulation, successfully achieved before crashing into pedestrians to stop.
The following image is a demo diagram:
This picture is a third-party perspective of the real road condition test:
This image presents the vehicle's emergency response from the main driver's perspective and lidar 3D imaging:
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Scene 2: The semi-closed road suddenly encounters retrograde objects
Let's look at scenario two: during the process of following the car, the front car encounters a tire rolling in the opposite direction and the avoidance lane suddenly appears left-turning vehicle.
Obviously, this scene is more difficult than the previous scene, and the difficulty is increased by two dimensions.
Follow the vehicle, suddenly avoid, the normal driving road suddenly appears high-speed retrograde tires, after the vehicle to achieve emergency avoidance, the right side of the vehicle again appears unexpected situation, there is a vehicle retrograde to seize the right of way.
At this time, the vehicle has no space and time to avoid, so it brakes urgently.
This requires the vehicle to make a judgment in a very short period of time, whether to choose to avoid or urgently formulate.
The following image shows the situation of the vehicle after being forced into a desperate situation from a third-party perspective:
The following graph shows the traffic data in the lidar eye and how to choose avoidance or emergency braking:
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Scenario Three: Encounter an accident
Scenario three, is on the closed highway, in front of a trailer motorhome suddenly out of control, standing in front of the vehicle directly occupied two lanes, in the test model, the vehicle should quickly go to the right and two lanes, to achieve safe passage, but obviously this scene, still in the test process, Nissan did not carry out a demonstration of the real road conditions.
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Scenario 4: Encounter a sudden collision accident
The road conditions in scene four are more extreme, the front private car collides with the truck directly blocks the way, in the high-speed closed scene with only two driving lanes and one emergency lane, and all the roads in front of it cannot pass, the vehicle needs to brake and stop in a very short time.
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Scenario Five: Flying across the border
This scene should be the ultimate sudden scene, that is, on the highway encountered from the opposite road reverse flying goods hit the normal driving vehicle, under normal logic, this collision has been unavoidable, car destruction is a high probability event, but the solution given by Nissan is that when the lidar finds the flying object, calculate the flight trajectory of the object at the first time, and calculate the short avoidance route in the first time.
Obviously, this is also a scenario where Nissan needs to work with its partners to tackle the problem, and there are currently no self-driving cars that can respond to this situation.
These five scenes, in fact, also claim to achieve high-speed closed scene automatic driving of the company to raise a wake-up call, intelligent driving in the second half is not so smooth arrival, hurriedly declared that the next step is to conquer the urban scene automatic driving, the slogan is greater than the reality.
If you can't complete the test of these five scenarios, don't say lightly, the era of automatic driving has arrived.
【Pay attention to the frontier of intelligent driving, pay attention to the video number of intelligent driving】