CONTROLLER FOR VEHICULAR SAFETY DEVICE

摘要

A control device (10) actuates at least one vehicular safety device such as a seat belt pretensioning mechanism (12), an airbag (14), an automatic roll-over bar, a door lock (16) or a cellular phone comprising a sensor stage (20) to sense a plurality of parameters including acceleration, pitch angle and roll angle of a vehicle. A corresponding plurality of digital signals representing each such parameter are generated. A control stage (22) includes circuitry to receive the plurality of digital signals and to generate a control signal corresponding to each such parameter when the corresponding digital signal exceeds a predetermined value. A safety device actuator includes circuitry to receive the control signals and to generate a corresponding actuator signal to actuate the corresponding vehicular safety device.