Patent attributes
A passenger protection apparatus (1) includes a rollover angular speed detection device (10), which detects a rollover angular speed during vehicle rollover, a rollover determination device (14), which conducts a determination of the vehicle rollover based on the rollover angular speed detected by the rollover angular speed detection device (10) and a rollover angle obtained from the rollover angular speed, a passenger protector (2), which operates in accordance with a determination result of the rollover determination device (14) to protect a passenger, a vertical G sensor (11), which detects an acceleration of an up and down direction of the vehicle; a horizontal G sensor (12), which detects an acceleration of a right and left direction of the vehicle, and an angular speed sensor error determination device (16), which conducts a determination whether or not a zero-point drift of the rollover angular speed detection device (10) occurs based on a detected signal of the vertical G sensor (11) or the horizontal G sensor (12).
