| 摘要 |
An active material-enabled overhead protection system (24) for protecting the occupants of vehicles (20) with overhead glass (22), such as sunroofs or panoramic windshields, during rollover events. The system (24) includes a protective structure (26) and a deployment device (28). The protective structure (26) has a stowed condition in which it does not obstruct the overhead glass (22), and a deployed condition in which it is interposed between the overhead glass (22) and the heads of the occupants of the vehicle (20). The deployment device (28) moves the protective structure (26) from the stowed condition to the deployed condition. The deployment device (28) includes a trigger (30) operable to initiate movement of the protective structure (26), and the trigger (30) includes an active material which can change shape in response to an actuation signal, and the change in shape initiates deployment of the protective structure (26). |
