Vehicle bumper system

摘要

A pedestrian protection apparatus for a truck is provided. The apparatus includes a bumper member mounted to a vehicle, a linkage, a stiffener, an extendible cross-member and an actuator. The extendible cross-member is mounted on a stiffener which in turn is mounted at each end at a first linkage and a second linkage respectively. The pedestrian protection apparatus may extend out from under the vehicle at speeds greater than a predetermined speed in order to prevent injury to a pedestrian in a collision. The linkages are disposed between the extendible cross-member and the bumper.