After leaving the supercharger (car charged to 92%) I came to a stop light. The car was NOT in autopilot. I took my foot off the accelerator pedal. The car had nearly come to a complete stop when it starting accelerating again. My foot was NOT on the pedal. I tried to brake and the brakes would NOT work. I turned the car to try to avoid hitting the car in front of me while pressing on the brake. Brakes still would not work and I slammed into the car in front of me. I believe that the car was not able to put the energy from the acceleration back into the battery (regenerative braking technology) and therefore pushed it back into acceleration mode. I also believe this caused the brakes to not work. I know there have been many recalls in China and other complaints of the same issue. I've had the car for 2 years and had never had this problem before. Another note when the accident happened the screen was showing a software update that wanted to be installed. This was a very disturbing and rattling happening and I'm not worried to drive the car after a super charge.