2023-09-17 06:02:16
A test vehicle (right) running at a speed of 80 km/h collides with a political vehicle. Photo courtesy of Korea Transportation Safety Authority, Korea Automobile Safety Research Institute
“bang.”
The test vehicle (YF Sonata) traveling at 80 km/h collided with the stopped Carnival. The impact was absorbed by the front of the test vehicle, which was rotated regarding 90 degrees. After the rising smoke cleared, I looked closer and saw that the bonnet was crumpled and the bumper had collapsed, but the driver’s seat was intact. There was no fire.
It was an unprecedented test prepared by the Korea Road Traffic Authority, considering the growing interest in mutual safety between different types of vehicles as sports utility vehicles (SUVs) rapidly spread.
On the morning of the 14th, I arrived at the Automobile Safety Research Institute, a research institute affiliated with the industrial complex in Songsan-myeon, Hwaseong-si, Gyeonggi-do. We moved to K-City, which was completed in December 2018, and test drove the Level 4 self-driving car (Resta). K-City, built on an area of 360,000 m2, is equipped with five transportation environments including highway, downtown, community, suburbs, and parking facilities, and 36 transportation facilities including toll gates, IC/JC, crosswalks, railroad crossings, bicycle paths, and potholes. By doing so, virtually all situations that may occur during actual driving were realized. It is the only test bed in the world that includes bus-only lanes and garosu-gil.
The test vehicle returned to its original position in regarding 8 minutes while avoiding school zones, flashing traffic lights, and jaywalking bicycles. The driver emphasized that he was not interfering with autonomous driving at all by raising his hands and feet above his head.
We also toured the tunnel and high-speed main circuit where weather environment reproduction facilities are installed. While passing through the 300m section, heavy rain measuring 60mm per hour fell and fog covered the area, so the visible distance was only 30m. Upon exiting the tunnel, a high-speed main circuit with a maximum inclination angle of 42 degrees appeared. The total length is 5040m and the road width is 15.2~19.5m, which is a space where maximum speed tests and maximum speed limiter tests can be conducted. The maximum design speed is 250 km/h, but for safety reasons, it is currently traveling at 215 km/h.
In one corner, a drive battery drop test was also being conducted. With a loud noise, the test product, the Porter EV battery, fell to the ground at 35.28 km/h. There was an acrid smell, but no embers were visible. There were no fragments flying. Bohyun Moon, a senior researcher at the Korea Automobile Safety Research Institute, said, “We let the battery fall freely onto the concrete floor from a height of 4.9m and observe whether it ignites or explodes for one hour. The purpose is to check the safety of the battery once morest physical shock that occurs when a car crashes.” “He explained.
K-City, which opened five years ago, continues to evolve every year. After supplementing the safety evaluation environment due to bad weather and communication disruption (GPS blocking, etc.) for Level 4 technology development in 2019-2021, we are working to reproduce more complex traffic situations such as congestion and group driving for Level 4+ technology development in 2022-2024. I’m tying my head.
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