Abstract:

 Using autonomous emergency braking (AEB) can assist car-drivers to avoid longitudinal collision. Five AEB algorithms to avoid collision were compared to verify the braking effect. Four kind of safety distance algorithms included Mazda, Honda, Berkeley, and SeungwukMoon, by using the distance between the selfcar and the front-car at the end of automatic braking, to judge the braking effect. The fifth algorithm was TTC algorithm with the time to collision (TTC) judging braking effect. Simulation was performed on the active safety car simulation platform PreScan running in the Simulink software. The results show that the vertical collision avoidance performance of the TTC algorithm is the optimal one among the five under the condition of normal driving without disturbing the driver.

Key words: vehicle safety, longitudinal collision, autonomous emergency break (AEB), time to collision (TTC), safety distance (AS), PreScan software