A passenger protection apparatus for a vehicle includes first and second airbags, an airbag deployment device, a collision speed detector, a passenger's Position detector, a seat moving unit, an airbag deployment determination unit, and a deployment controller. The first airbag is deployable in different sizes. The second airbag is deployable between the first airbag and vehicle equipment. The airbag deployment device deploys the airbags. The collision speed detector detects a collision or collision possibility of a vehicle, and calculates a collision speed. The passenger position detector detects a position of a passenger sitting on a seat. The seat moving unit moves the seat. The airbag deployment determination unit determines a size of the deployed first airbag. The deployment controller determines an amount of movement of the seat, causes the seat moving unit to move the seat, and causes the airbag deployment device to deploy the airbags.

An air-bag apparatus includes: a bag body that is provided on a vehicle seat and that is inflated and expanded at a time of an impact input and prevents at least an upper part of a body of an occupant seated on the vehicle seat from being separated from a seat back of the vehicle seat; an inflator that supplies a gas to the bag body at a time of an impact input; a body size detection part that detects a body size of the occupant seated on the vehicle seat; and an expansion degree adjustment part that adjusts a degree of an inflation expansion of the bag body in accordance with the body size of the occupant detected by the body size detection part.

A method of controlling an airbag inflator, may include determining, when an occupant is accommodated on a seat, whether the weight of the occupant is in which of first to fourth weight ranges sequentially allocated by a controller, performing a first logic for operating an inflator at the lowest one of three intensities by the controller when it is determined that the weight of the occupant is in the lightest first weight range, and performing a second logic for operating the inflator at the intermediate intensity or a third logic for operating the inflator at the highest intensity by the controller, according to conditions such as a position of a seat, a state of operation of a recliner, a collision condition, a collision pulse, and wearing of a belt, when it is determined that the weight of the occupant is in the third or fourth weight range.

A pedestrian protecting device for vehicle comprises: a protection device which protects a protection target upon colliding with a vehicle; a measurement device which measures an image of the protection target and a distance from the vehicle to the protection target; and a control device which operates the protection device in a different manner depending on a size of the protection target.

An occupant constraint system may include a belt marker on a seat belt in a passenger compartment of the vehicle for restraining a passenger during a collision. The occupant constraint system may include a camera system for producing marker position data that is indicative of a position of the marker, and a physical characteristic estimator that is uses the marker position data to produce a physical characteristic estimate of a physical characteristic estimate of the passenger. The occupant constraint system may include a passenger related system having a passenger function and the passenger related system may control the passenger function based at least in part on the physical characteristic estimate.

An airbag device and a method for controlling deployment of the same are proposed. The airbag device is configured to protect a passenger by controlling an airbag cushion deployed toward the rear space of a seatback in an event of a vehicle collision, and the airbag device includes an airbag cushion deploying toward the rear space of the seatback, a sensor part detecting a seating status and a seating posture of a passenger with respect to each seat, and a controller, in an event of a collision, configured to change and control a deploying status of the airbag cushion and an inflation amount of the airbag cushion in response to the seating status and the seating posture of the passenger.

An airbag device for a vehicle provided with a door and a side sill includes an airbag and an application state detector. The airbag is deployed from a container to be disposed on a lower side of the door on a vehicle body to a region on a vehicle-widthwise outside of the door. The application state detector detects a load application state of a load from the airbag to the vehicle body. The airbag includes a first air chamber, a second air chamber, and an internal pressure controller. The first air chamber transmits a load applied from the vehicle-widthwise outside to a side surface of the side sill. The second air chamber couples a lower part of the first air chamber and the container. The internal pressure controller controls an internal pressure of the second air chamber based on the load application state detected by the application state detector.

An airbag includes folds with each fold having an apex and limbs. The limbs extend from the apex to the limbs of an adjacent fold. A fastener is fixed to the folds and releasably connects the folds to each other.

An airbag device for a front passenger seat includes a front passenger seat airbag main body, a center airbag portion, an actuator and a control section. The actuator is configured to switch a strap between a first state and a second state. In the first state, the center airbag portion is retained in a folded state. In the second state, the other end portion of the strap is released and the center airbag portion is allowed to inflate and expand. The control section sets the actuator to the first state when there is a full overlap frontal collision, and sets the actuator to the second state when there is a collision that is any of an oblique collision against a driver seat side of a vehicle front portion or a small overlap collision.

A front airbag (10) for the protection of a vehicle occupant (12) in a vehicle which is specifically a passenger airbag for the protection of a passenger, in the installed and inflated state includes a contact wall (20) facing the vehicle occupant (12) and an opposite rear wall (22) as well as a first sidewall (24) facing the vehicle center as seen by the vehicle occupant (12) and an opposite second sidewall (26). The airbag (10) further includes a limiting device which, in the inflated state of the airbag (10), prevents the first sidewall (24) from further deploying so that the airbag (10) takes a first volume. The limiting device can be influenced when the head (14) of the vehicle occupant (12) contacts the airbag (10) such that it allows the first sidewall (24) to further deploy so that the airbag (10) takes a second volume larger as compared to the first volume. Accordingly, at least a major part of the volume of the airbag (10) increases in the direction of the vehicle center as seen by the vehicle occupant (12).