Pillsbury Madison & Sutro LLP
Roll over determining method
 A control circuit determines that a vehicle is in a turning mode. A roll rate sensor then detects the roll rate (RR) and determines whether or not the roll rate exceeds a threshold value. If it is determined that the roll rate does exceed the threshold value, then it is determined that the vehicle is in a roll over state if the relationship between the sideways acceleration (Gy) and the roll angle (RA) falls inside the roll over determining area of a determining map stored in advance in the control circuit. Accordingly, the roll over state of the vehicle is detected early. 
Toyota Jidosha Kabushiki Kaisha
B B B B B B
B60G B60R B60R B60R B60R B60R
additional inventional additional additional additional inventional
Takuya
Otsuka