A pre-crash discrimination system for an airbag deployment algorithm

The airbag system has been a standard safety equipment for vehicles and it is efficient for enhancing the safety of a driver and passengers from crash. However, inadvertent injuries have been caused by airbag deployment in a rough and uncertain temporal interval. In this paper, a pre-crash discrimination system is proposed to prevent airbag deployment from malfunction. The system consists of a radar sensor of ACC system and vehicle state sensors of VDC system. The pre-crash information includes crash probability, time-to-crash and crash type. Using the information, the host vehicle recognizes crash situation and airbags are deployed accurately at the predefined moment for each crash situation.