An apparatus for detecting a vehicle rollover event comprising: an enhanced sensor input architecture for detecting a vehicle rollover event; and a controller responsive to the enhanced sensor input architecture for controlling an occupant restraining device, wherein the enhanced sensor input architecture includes - electronic stability control sensors and - vehicle roll-over sensors (52, 54, 58), wherein the electronic stability control sensors include - a vehicle velocity sensor, - a steer angle sensor, - a side slip angle sensor, - a yaw rate sensor and - a lateral acceleration sensor; and wherein the vehicle roll-over sensors (52, 54, 58) include - a rollover discrimination sensor providing a roll-over signal (CCU_4R), - a Y-axis sideways accelerometer providing a Y-axis acceleration signal (CCU_1Y), and - a Z-axis accelerometer providing a Z-axis acceleration signal (CCU_6Z), the vehicle rollover discrimination sensors monitoring a roll rate, said controller determining a roll angle from the monitored roll rate characterized in that said controller is configured to determine if the monitored roll rate at the determined roll angle is greater than a threshold roll rate for said determined roll angle, the threshold values being predetermined for various road conditions, including a normal condition, a screw ramp or embankment condition, a hard-soil condition, a mid-soil condition, and a soft-soil condition, said controller is configured to control an actuatable restraining device in response to - the determination if the monitored roll rate at the determined roll angle is greater than the threshold roll rate, - the value of the Y-axis acceleration signal (CCU_1 Y), - the value of the Z-axis acceleration signal (CCU_6Z), and - an output (1, 2, 3M, 3S, 3H) of the electronic stability control sensors. an enhanced sensor input architecture for detecting a vehicle rollover event; and a controller responsive to the enhanced sensor input architecture for controlling an occupant restraining device, wherein the enhanced sensor input architecture includes - electronic stability control sensors and - vehicle roll-over sensors (52, 54, 58), - electronic stability control sensors and - vehicle roll-over sensors (52, 54, 58), wherein the electronic stability control sensors include - a vehicle velocity sensor, - a steer angle sensor, - a side slip angle sensor, - a yaw rate sensor and - a lateral acceleration sensor; and - a vehicle velocity sensor, - a steer angle sensor, - a side slip angle sensor, - a yaw rate sensor and - a lateral acceleration sensor; and wherein the vehicle roll-over sensors (52, 54, 58) include - a rollover discrimination sensor providing a roll-over signal (CCU_4R), - a Y-axis sideways accelerometer providing a Y-axis acceleration signal (CCU_1Y), and - a Z-axis accelerometer providing a Z-axis acceleration signal (CCU_6Z), the vehicle rollover discrimination sensors monitoring a roll rate, - a rollover discrimination sensor providing a roll-over signal (CCU_4R), - a Y-axis sideways accelerometer providing a Y-axis acceleration signal (CCU_1Y), and - a Z-axis accelerometer providing a Z-axis acceleration signal (CCU_6Z), the vehicle rollover discrimination sensors monitoring a roll rate, said controller determining a roll angle from the monitored roll rate characterized in that said controller is configured to determine if the monitored roll rate at the determined roll angle is greater than a threshold roll rate for said determined roll angle, the threshold values being predetermined for various road conditions, including a normal condition, a screw ramp or embankment condition, a hard-soil condition, a mid-soil condition, and a soft-soil condition, said controller is configured to control an actuatable restraining device in response to - the determination if the monitored roll rate at the determined roll angle is greater than the threshold roll rate, - the value of the Y-axis acceleration signal (CCU_1 Y), - the value of the Z-axis acceleration signal (CCU_6Z), and - an output (1, 2, 3M, 3S, 3H) of the electronic stability control sensors. - the determination if the monitored roll rate at the determined roll angle is greater than the threshold roll rate, - the value of the Y-axis acceleration signal (CCU_1 Y), - the value of the Z-axis acceleration signal (CCU_6Z), and - an output (1, 2, 3M, 3S, 3H) of the electronic stability control sensors.