CHONGQING, March 12 (Xinhua) -- Chinese carmaker Changan Auto has started mass production of its level 3 autonomous driving car model "UNI-T."

The car model is equipped with an L3 autonomous driving system developed by Changan that uses five millimeter-wave radars, six cameras and 12 ultrasonic radars as the main sensors, said Zhu Huarong, president of Changan Auto, in the southwestern Chinese city of Chongqing on Tuesday.

The system can fulfill three 360-degree situational awareness outside the vehicle, with a maximum detection distance of more than 200 meters and ten-centimeter measurement accuracy.

The system can effectively identify traffic information such as vehicles, pedestrians, cyclists, lane lines, guardrails, traffic signs in the driving environment, and monitor the driver's vision and fatigue state to ensure the accuracy of autonomous driving.

"Our system has completed tens of thousands of scene matching tests and 50 million km of road tests. Drivers can let the vehicle itself keep driving until the system reminds him to take over," Zhu said.

Changan started self-driving technology development in 2009 and it became the world's first automaker to complete a 2,000-km-long autonomous driving road test in 2016. It realized the mass production of cars with the L2 autonomous driving system in 2018.