Airbag apparatus

An airbag apparatus to be applied to a vehicle, the airbag apparatus comprising:

• an airbag configured to be deployed forward of a front of a vehicle body of the vehicle;
• and
• circuitry configured to
• establish a pre-crash determination in a case where a collision probability is equal to or higher than a predetermined threshold
• based on the pre-crash determination, give to an inflator a command to supply deployment gas to the airbag and deploy the airbag
• open and close a vent passage configured to discharge the deployment gas from the airbag;
• and
• detect a state of energy absorption by the airbag,
• wherein the circuitry is configured to open the vent passage at an early stage of collision with a collision object, and subsequently, reduce an opening degree of the vent passage upon detecting a completion of predetermined energy absorption.

A computer readable medium including computer instructions executable by a processor for an airbag apparatus to be applied to a vehicle, the airbag apparatus including an airbag configured to be deployed forward of a front of a vehicle body of the vehicle,

• the computer readable medium comprising the computer instructions configured to:
• establish a pre-crash determination in a case where a collision probability is equal to or higher than a predetermined threshold;
• in response to the pre-crash determination, give to an inflator a command to supply deployment gas to the airbag and deploy the airbag;
• open and close a vent passage configured to discharge the deployment gas from the airbag;
• and
• detect a state of energy absorption by the airbag,
• wherein the computer instructions are configured to open the vent passage at an early stage of collision with a collision object, and subsequently, reduce an opening degree of the vent passage in a case where an energy absorption state detector detects a completion of predetermined energy absorption.