Patent ID: 7702441

Claim:
A vehicle rollover detection system for deploying an occupant protection device in response to a vehicle rollover event, said vehicle rollover detection system comprising: a lateral acceleration sensor for providing a vehicle lateral acceleration signal; a roll rate sensor for providing a vehicle roll rate signal; and a processor adapted to receive the vehicle lateral acceleration signal and the vehicle roll rate signal, said processor comprising a main logic configured to provide a main logic activation signal indicative of a vehicle rollover event, and a safety logic for generating a safety logic activation signal in response to (a) a determination that the vehicle lateral acceleration signal exceeds a predefined first threshold value; or (b) a determination that the vehicle lateral acceleration signal exceeds a predefined second threshold value that is less than the predefined first threshold value and that the vehicle roll rate signal exceeds a predefined roll rate threshold value, said processor being configured to provide an occupant protection device deployment signal in response to the presence of both the main logic activation signal and the safety logic activation signal.