A vehicle diagnostic and communication system includes a controller with computer executable instructions configured to diagnose operational capability of vehicle operating systems in response to a recognized collision event. The controller is further configured to determine a severity of damage to the vehicle operating systems based on the diagnoses and generate a communication signal based on the determined severity of damage to the vehicle for transmission. The system determines which of a plurality of service providers to send the communication signal based on the severity of damage to the vehicle.

During a rollover situation there are possibilities of passenger head hitting the roof of the vehicle causing injury depending upon the passenger's height, head room, vertical and angular momentum where only side and curtain airbags cannot provide a complete head and neck protection. Comprehensive Roof Airbags (CRA) are integrated or installed internally and externally between, through and across the top of windshield, top of the roll over protection bars, head liner, roof rails, top of A, B and C pillars particularly works in roll over situation and deployed to cover the area with airbags on either one or more or combinations of inside headliner, outside rooftop and over the top of occupants head according to configurations and type of the vehicles thereby forming a protective layer to prevent or reduce the severity of head hitting the roof top in closed top vehicles and head hitting the road surface and debris in case open top vehicle ultimately to protect the passengers all to avoid or mitigate the head, neck and spine injury.

An airbag apparatus includes an airbag and an airbag controller. The airbag is disposed in a movable member and configured to be able to deploy in different sizes in a front-to-back direction of an automobile. The movable member can move in the front-to-back direction in front of a passenger in the automobile. The airbag controller is configured to control a size of the airbag to be deployed, according to a position to which the movable member is moved.

A method and vehicle control system for controlling stiffness of at least one support structure of a vehicle includes at least one of an acceleration sensor, a braking sensor and a corner sensor for providing a driving condition of the vehicle. A controller obtains information from the sensors to determine the driving condition and control the stiffness of a support structure of the vehicle. A magnetic field generator provides a magnetic field to control the stiffness of the support structure having a magnetorheological fluid or elastomer. An electrical source provides electrical current to a support structure including an electrorheological fluid or a support structure including a meta-material. When a vehicle collision is predicted no energy is provided to the support structure to minimize the stiffness and maximize energy absorbance by the support structure in a collision.