A control system (18) and method for an automotive vehicle (10) includes a
lateral acceleration sensor (32) for generating a lateral acceleration
signal, a yaw rate sensor (28) for generating a yaw rate signal, and a
safety system. The safety system (44) and the sensors are coupled to a
controller (26). The controller (26) determines a front lateral tire
force and a rear lateral tire force from the vehicle yaw rate signal and
the vehicle lateral acceleration signal; determines a calculated lateral
velocity from the front lateral tire force, the rear lateral tire force,
and a bank angle; determines a calculated yaw rate from the front lateral
tire force and the rear lateral tire force; and controls the safety
system in response to the calculated lateral velocity and the calculated
yaw rate.