Helmet airbag system

A helmet airbag system, comprising:

• an airbag coupled to a helmet;
• an inflation device coupled to the helmet and configured to at least partially inflate the airbag;
• a ventilation device configured to deflate the airbag;
• a retraction device configured to retract the airbag;
• and
• a processor configured to:
• receive object data regarding an object;
• predict a potential impact between the helmet and the object;
• and
• control operation of the inflation device to inflate at least one compartment of the airbag.

A helmet, comprising:

• a shell defining an interior of the helmet and
• an airbag system including:
• an airbag at least partially disposed within the shell;
• an inflation device coupled to the airbag and configured to at least partially inflate the airbag such that that the airbag deploys in a direction away from the interior of the helmet upon inflation;
• a ventilation device coupled to the airbag and configured to deflate the airbag;
• and
• a processor configured to control operation of the inflation device and the ventilation device to selectively and actively inflate and deflate the airbag during a respective impact between the shell and an object external to the shell.