Method of controlling vehicle safety device

A method of controlling a vehicle safety device, the method comprising:

• predicting, by a controller, a collision accident and a rollover accident by using a signal detected by an accident prediction detecting part installed in a host vehicle;
• and
• supporting, responsive to a prediction of an accident of the host vehicle, by the controller, a passenger, the passenger being situated in a seat in the host vehicle, to remain on the seat by operating a seat device, the seat device being configured to support the passenger on the seat, while closing an opening/closing device, the opening/closing device being configured to openably and closably operate at a periphery of the passenger,
• wherein the predicting further comprises predicting a forward or rearward collision accident by determining a distance and relative velocity of the host vehicle with respect to vehicles traveling forward or rearward of the host vehicle based on the signal detected by the accident prediction detecting part, and
• wherein an occurrence of a forward or rearward collision accident is predicted by the controller when a vehicle velocity of the host vehicle exceeds a host threshold vehicle velocity, a collision risk level with a preceding or following vehicle, the collision risk level being calculated based on distances and velocities with respect to the preceding and following vehicles, exceeds a preset level, and a relative velocity with respect to the preceding or following vehicle exceeds a relative velocity threshold velocity.

A method of controlling a vehicle safety device, the method comprising:

• predicting, by a controller, a collision accident and a rollover accident by using a signal detected by an accident prediction detecting part installed in a host vehicle;
• and
• supporting, responsive to a prediction of an accident of the host vehicle, by the controller, a passenger, the passenger being situated in a seat in the host vehicle, to remain on the seat by operating a seat device, the seat device being configured to support the passenger on the seat, while closing an opening/closing device, the opening/closing device being configured to openably and closably operate at a periphery of the passenger,
• wherein the predicting further comprises predicting a rollover accident by determining a roll motion of the host vehicle based on the signal detected by the accident prediction detecting part, and
• wherein occurrence of a rollover accident is predicted by the controller when a vehicle velocity of the host vehicle exceeds a host threshold vehicle velocity, a roll angle of the host vehicle exceeds a threshold angle, and a roll angular velocity exceeds a threshold angular velocity.