The invention discloses a car outer airbag system for changing expansion speed according to car momentum. The car outer airbag system comprises a collision sensing unit, a car speed acquisition unit, a processing unit, an explosion starting unit and an outer airbag, wherein the collision sensing unit is used for sensing the distance between the car and the obstacle; the car speed acquisition unit is connected with a car bus in a communication manner and used for acquiring the current car speed; the processing unit is used for receiving the collision object distance transmitted by the collision sensing unit and a car speed signal uploaded by the car speed acquisition unit, calculating the collision time and giving a starting signal when the collision time achieves a certain time threshold; the explosion starting unit is used for receiving the starting signal sent by the processing unit and inflating the outer airbag to open the outer airbag. Through arranging external omnibearing radar and a corresponding calculation unit, the outer airbag can be opened before the car encounters outer collision, so that the damage of the car can be decreased; meanwhile, the modularized explosion unit is adopted, so that the outer airbag can be all opened or partially opened according to the current momentum. The adopted technology is mature and suitable for large-scale popularization and application.
Car outer airbag system for changing expansion speed according to car momentum
2015-06-10
Patent
Elektronische Ressource
Englisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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