Active vehicle hood system and method

US7303040B2 · kind B2 · utility

Assignee

• Autoliv ASP, Inc. · US

Inventors

• David J. Green · Brigham City, US
• Guy R. Letendre · Ogden, US
• Brent Parks · Englewood, US
• Michael R. Schramm · Perry, US
• Roman Zlotnikov · Salt Lake City, US
• Bradley W. Smith · Ogden, US
• Michael P. Jordan · South Weber, US
• Michael J. Ravenberg · Corinne, US

Key dates

• Filing date: May 18, 2004
• Grant date: Dec 4, 2007
• Expiry date: Jun 24, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D25/12
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A novel active hood system is disclosed. The active hood system is designed such that in the event of a pedestrian/vehicle accident, the active hood system will soften the impact between the pedestrian and the vehicle by moving the vehicle hood into an elevated position. In some embodiments, the active hood system is constructed such that during a pedestrian/vehicle collision, the active hood system will raise the vehicle hood into an elevated position by having the hood move through a first travel distance and a second travel distance. The active hood system includes an actuator and a hinge. The actuator may be attached to the hinge. The actuator is designed such that if it is deployed, the actuator will raise the hood into the elevated position. Additional embodiments may also be made in which the actuator is vented during deployment. A dampener is also added to the active hood system. The dampener is designed to dampen the movement of the hood as the hood is moved through the second travel distance.